Abstract

A shallow, unconsolidated, sour heavy oil reservoir in North Kuwait is under primary production. Due to rapid decline in reservoir pressure, a development scenario was selected consisting of 10 years of water injection secondary recovery followed by enhanced oil recovery (EOR) polymer flood for which a pilot is being implemented. This pilot will provide vital information to establish feasibility for full-field implementation and in this paper, we describe the application of Interference Pressure Transient Test (IPTT) and stress testing. IPTT is utilized for proper understanding of the vertical permeability and permeability anisotropy (Kv/Kh) which are key for evaluating heavy oil sweep efficiency under injection. Stress testing will provide essential information about the cap rock integrity to monitor that water and polymer flooding is contained across the required reservoir. A combination of IPTT and stress testing utilizing the Wireline Formation Testing (WFT) tool and laboratory cor

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Objectives: About 30–80% of preterm deliveries following preterm premature rupture of fetal membranes (PPROM) are complicated by histological chorioamnionitis. To evaluate the accuracy of Interleukin-6 (IL-6) bedside test in detecting chorioamnionitis in women with PPROM. Material and methods: One hundred and ten (110) pregnant women with PPROM > 24 and < 34 weeks’ gestation, admitted for conservative management were included in this study. Participants were examined on admission using sterile speculum examination for assessment of IL-6 in the cervico-vaginal secretions using the IL-6 bedside test. The IL-6 bedside test was repeated for all participants once termination of pregnancy (TOP) decided. After TOP, placenta, umbilical cord, and fetal membranes samples were examined for histologic detection of chorioamnionitis (gold standard). The histological results were compared with IL-6 bedside test results to evaluate the accuracy of IL-6 bedside test in detecting chorioamnionitis in wom

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Kuwait currently produces about 3 million barrels of crude oil per day and has a large pipeline network system for handling its oil and associated products (condensate, low pressure and high pressure gas, as well as produced and effluent waters). The total length of the pipeline network is about 4790 Km consisting of API 5L Grade-B carbon steel ranging in diameter from 100 mm to 1830 mm. The Kuwait Oil Company (KOC) is responsible for the corrosion and integrity management of the pipeline network system which involves: Internal Corrosion Monitoring to assess the internal corrosion status of the pipelines including the occurrence of microbial influenced corrosion; external corrosion protection with the help of coatings and cathodic protection, and periodic intelligent and cleaning pigging operations for internal corrosion assessment and cleaning. The present paper focuses on the internal corrosion management of the export crude segment of the pipeline network system which is very import

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Internal corrosion is a leading cause of failure of pipelines that transport crude oil. The small amounts of saline water present in crude oil separates over a period due to any stagnancy or low flow conditions. The separated water causes water wetting of the pipe surface and creates corrosive condition along with the presence of carbon dioxide and hydrogen sulfide and bacteria, especially the sulfate reducing bacteria (SRB) and acid producing general anaerobic bacteria (GAnB) that thrive under the anaerobic conditions existing in pipelines. This is the major reason for pitting and leakages of pipelines. The On-line Corrosion Monitoring (OCM) using corrosion coupons provide early indication of internal corrosion taking place on the pipe wall. The chemical analysis of deposits removed from cleaning pigging provide qualitative information of general corrosion and its possible mechanism, while the microbiological analysis can indicate the involvement of bacteria in the internal corrosion.

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The Late Jurassic Gotnia evaporites of Sabriyah (SA) and Raudhatain (RA) fields, North Kuwait, provide an example of Layered Evaporite Sequences (LESs) in which well-preserved internal geometries resulting from a complex polyphased tectonic deformation can be investigated. The Gotnia LESs represent a unique opportunity to study the mechanisms of internal deformation of rheologically contrasted layers of anhydrite (strong) and halite (weak) matrix present in the km-scale SA-RA structures. Combining seismic data characterization and sandbox experiment approaches, we describe in detail the spatial variations of deformation and place them in a sequential evolution of regional and local stress regimes. Seismic mapping was focused on the thickest anhydrite layer of the Gotnia LESs (i.e., 1st anhydrite). As anhydrite has a strong lithological and acoustic impedance contrast with respect to halite, seismic mapping was carried out on an impedance cube and a derived seismic attribute (salt proba

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Electrical Submersible Pumps (ESPs) are the most common used artificial lift method in Kuwait. The life data analysis of an ESP is important in design, operation, and to meet the deliverability of the reservoir. Weibull Reliability combined with the Dynamic Average Equipment Run-Life (DAERL) allows to construct confidence intervals for the survival of ESP system based on equipment, design information, reservoir data, and operating performance. Statistical methodology using a combination of Weibull and DAERL is developed and applied to a data set which covers all ESP systems installed in Kuwait with over 8 years of data covering 5,000 ESP installations. Through the addition of operating history data (including the number of trips and the specific reasons of trips) into the analysis provides a more accurate reliability measure of running wells today. The primary advantage of Weibull analysis is the ability to provide reasonably accurate failure analysis and failure forecasts with small s

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Sally Zinke is an outstanding geophysicist who has left an indelible mark on SEG with her many achievements. Most notably, she is the only woman to date who has served as President of our Society. Zinke received a B.S. in geology and geophysics from the University of Wisconsin-Madison, an M.S. in geophysics from Pennsylvania State University, and midway through her career completed the executive M.B.A. program at the University of Denver with an emphasis in finance. She has worked for a major oil company, Mobil Oil; a large independent, PanCanadian Petroleum; was a faculty member at the University of Texas Bureau of Economic Geology; worked as a consultant on many exploration-related projects; and most recently was director of exploration/director of new ventures for Ultra Petroleum. Throughout that time, she has been a volunteer in her local SEG section, the Denver Geophysical Society, and has served on numerous SEG committees and several Executive Committees. While President in 2000-

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Our team has developed a new simulation model for an upcoming 5-spot Alkaline-Surfactant-Polymer (ASP) pilot in the Sabriyah Mauddud reservoir in Kuwait. We present new pilot simulation results based on new data from pilot wells and an updated geocelluar reservoir model. New cores and well logs were used to update the geocellular model, including initial fluid distributions, permeability and layer flow allocation. From the updated geocellular model a smaller dynamic sector model was extracted to history match field performance of a waterflood pattern. From the dynamic model a yet smaller pilot model was extracted and refined to simulate the 5-spot ASP pilot. We used this pilot model to evaluate injection composition, zonal completions, observation well locations, interwell tracer test design and predicted performance of ASP flooding. A sensitivity analysis for some important design variables and pilot performance benchmarks is also included. We used multiple interwell tracer test simul

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Aims Lower vaginal swabs were collected to compare the intrapartum polymerase chain reaction (PCR) test to the standard antepartum culture for detection of group B streptococcus (GBS) colonisation. Materials and Methods Four hundred and forty-five pregnant women with documented antepartum GBS cultures, who did not receive either antepartum or intrapartum antibiotics, were included in this prospective study. At the time of delivery and before the intrapartum antibiotic prophylaxis (IAP), double swabs were collected, one of the swab was used in the GBS molecular-based (PCR) test and the other was processed for GBS culture in Ahmadi Hospital Clinical Laboratory. Neonates were examined after delivery to diagnose GBS sepsis, and using intrapartum GBS culture as gold standard test; the intrapartum PCR test was compared to the antepartum culture. Results The sensitivity and specificity of antepartum culture to diagnose GBS colonisation were 73 & 95.5%, respectively, compared with 98.3% sensit

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Objective: To detect the effect of intra-peritoneal instillation of local anesthetic with or without NSAIDs on pain relief after gynecological laparoscopy. Methods: Seventy five patients scheduled for laparoscopy were included in the study and randomly divided into three groups. At the end of the laparoscopic procedure, 100 mL normal saline in the first group, or 100 mL normal saline contains 200 mg lidocaine in the second group, or 100 mL normal slaine containing 200 mg lidocaine and 20 mg tenoxicam in the third group were splashed into the pelvis by the surgeon. Post-operative pain were monitored and compared. Results: The incidence and severity of immediate postoperative shoulder pain reduced from 44% of patients scoring 2-5 in saline group to 16% scoring 2-3 in lidocaine group and 8% scoring 2-3 in lidocaine-tenoxicam group. Compared with saline group, abdominal pain scores were significantly lower in lidocaine group and lidocaine-tenoxicam group over 24 hours after surgery. At 12

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A 29-year-old parous woman with a history of a T-shaped copper intrauterine device (IUD) insertion presented 8 months later with a complaint of the contraceptive device being missing. Computed tomography with contrast turned out to be superior to the combined abdominal and pelvic X-ray and transvaginal ultrasound in providing the detailed extrauterine location of the device between the urinary bladder and uterus. A laparoscopy was successful in the atraumatic freeing of the IUD from omental and bladder adhesions, and in its final removal. © 2023 Hanan S. Al-Khatlan et al., published by Sciendo.

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Satellite surface deformation data acquired over the Umm Gudair field from 2003 onwards, using interferometric synthetic aperture radar (InSAR) data has revealed the existence of ground subsidence over the field. In this work, a geomechanical inverse modelling technique was employed to quantitatively relate observed surface subsidence with its subsurface source mechanisms, in particular, pore pressure changes from the Minagish Oolite reservoir. By discretizing the reservoir into hydro-mechanical units, we generate a set of numerically-derived forward operators mapping the effects of pore pressure changes to subsurface deformation and ultimately surface subsidence. These operators were generated using a 3D geomechanical model capturing structural and stratigraphic complexities of the underlying physical problem. In analysing the inverted pressure change patterns in light of reservoir geology and actual field production experience, our work showcases the use of observed InSAR surface sub

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Water Coning is a reservoir phenomenon that is particularly more challenging in reservoirs where Kv/Kh > 0.5. To maximize production rates and ultimate hydrocarbon recovery from its water drive reservoirs, North Kuwait shifted its exploitation strategy from vertical to horizontal completions. When water broke through, however, remedial efforts were limited, complex, and certainly short-lived since the water moves laterally along wellbore to adjacent compartments. A more effective solution to control the water cone was implemented in a vertical well with good success, but with some operational limits. This completion used a conventional ESP with Y-tool to create a counteractive pressure drawdown just below the Oil/Water contact in an effort to limit the progression of the water cone. The major limitations with this ESP configuration were casing size (can only be used in 9." casings and larger), and rate restrictions (limited to 4,500 BPD injection rate, beyond which shroud erosion is ex

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Inverted Electrical Submersible Pumps (ESPs) are considered to be a relatively young addition to the Artificial Lift portfolio, and were solely used for unnatural Dumflooding (DF) purposes, where the injection zone is located below the source zone, i.e. requiring the pump discharge to be positioned at the bottom of the assembly and the intake evidently on top. Few inverted-ESP-DF applications have been analyzed or reported. Accordingly, operators and technology providers have yet a lot to venture through and improve; in the aspects of inverted ESP design enhancements and concept utilizations. KOC's - North Fields are the first to actuate Cone Control Completions (CCCs) via inverted ESPs; attaining affectability levels never before achieved using conventional technologies. The concept of Cone Control technology is to create a pressure drawdown (ΔP), just below the Oil Water Contact (OWC), marginally higher than the ΔP across the perforated interval within the Oil leg. This drawdown reta

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This study will investigate measuring the wettability contact angles of native unconventional tight carbonate as well as other unconventional pore system reservoir samples that hosts varied pore shapes and subsequent wettability contact angle distributions in both reservoir matrix and possible natural fractures. Also, the investigation will include validation of the grain/ pore-wall wettability regions and classify the natural wettability preference available inside pores of the rock and their overall wettability performance and recovery efficiency contributions. Further investigation will include modeling pore throat contact angle wettability, and to understand their new physics that will advance reservoir characterization and oil recovery improvement. Copyright 2023, Society of Petroleum Engineers.

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This paper investigates the applicability of Low Salinity (LoSal) EOR for a Kuwaiti reservoir. Many reservoirs in the Middle East are not producing satisfied results after depletion methods for a long time of production. Therefore, new management and production strategies must be determined in order to meet the global market demand for oil, which can be done using Enhanced Oil Recovery (EOR) techniques. In Kuwait, one of the EOR methods that could be applied is the use of Low-Salinity (LoSal) Water Flood. Results from previous research have clearly shown that LoSal water injection has a significant impact on oil recovery. Although there are many LoSal experimental results reported in the literature, the process mechanisms and the prediction modeling are yet to be fully investigated and understood. As a result, further experimental work is needed in order to be able to develop reliable prediction tools. The research in this paper is an integrated study combining laboratory work to asses

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We used wireline logs, seismic, core data, fluid analysis, and geochemical data to investigate the total petroleum system in the Cretaceous period. Also, we used thin sections and fluid analysis throughout the investigation. Python’s 1-D backstripping technique was used to determine the abrupt changes in subsidence rates and their effect on the reservoir’s quality. The results defined that the potential reservoirs include, from top to bottom, Mauddud, Upper Burgan, Lower Zubair, and Ratawi Limestone. The reservoir facies reflect different environments between the carbonate ramp (Mauddud, Ratawi Limestone, and Minagish reservoirs), delta plain (Zubair reservoir), and margin shelf (Burgan reservoir), and its quality is graded from Mauddud to Ratawi Limestone from top to bottom. The field lies up-dip under Kuwait Bay and represents the continuation of super-giant Greater Burgan Field. It filled with the spilled oil from the down-dip Raudhatain and Sabriyah fields through a structural sadd

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Predicting the performance of individual oil wells is of great importance to petroleum engineering for continuous production optimization in the field. This study proposes a new Inflow Performance Relationships (IPR) for naturally fractured gas condensate reservoirs. Existing IPR models are commonly used for conventional solution gas drive reservoirs. The purpose will be to generate inflow performance relationships (well flowing pressure vs. flow rate) for naturally fractured condensate reservoirs as a function of the average reservoir pressure and fractured reservoir parameters including storage capacity (fracture storativity) and inter porosity flow parameter (interporosity flow coefficient). A dual porosity/dual permeability compositional equation of state simulator is used in this study. A regression program is used to fit the IPR curves and to obtain the corresponding equations. As a result, rational functions have been developed for the IPR curves for gas and oil phases. These co

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This paper describes the application of a nondamaging temporary gel system to isolate a part of a horizontal section in an openhole well. The purpose of this application was to provide a cost effective method of isolating a high water-saturated zone of the extended lateral to facilitate the production of hydrocarbon from the rest of the open hole. The candidate well (R-91) selected for this application was the first extended lateral horizontal well (3000-ft lateral section) drilled as a producer. The well was to be converted to an injector at a later time. Logging while drilling (LWD) was performed during the drilling phase of this well, and a low-resistivity section was identified along the horizontal lateral. On completion of the drilling, a well test was performed, indicating a high water cut. It was suspected that this water was being produced from this low resistivity section along the lateral hole. An economical method for confirming and isolating the source of this water influx

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A 56-year-old male was admitted to the emergency department for acute pulmonary edema and septic shock, yet no clear source of infection was noted upon physical examination. Due to his unstable condition, bedside ultrasound was performed. A heterogeneous mass in the liver was noted; hence, a tentative diagnosis of liver abscess was made. The abscess was confirmed by abdominal magnetic resonance imaging. Drainage of the abscess was attempted and guided by early ultrasound. This case highlights that point-of-care ultrasound, when performed by an ultrasound-capable critical care physician, can significantly decrease the time to diagnosis for septic patients. © 2020 Zouheir Ibrahim Bitar et al.

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Objectives: We aimed to evaluate knowledge and practice styles among medical providers with different professions and working in different Arab countries regarding their approach to childhood constipation. Methods: We conducted a cross-sectional multinational survey in eight Arab countries. Pediatric care providers (PCPs), including pediatric specialists (PSs), pediatric residents (PRs), pediatric consultants (PCs), pediatric gastroenterologists (PGs), general practitioners (GPs), and pediatric surgeons (PSu), were included in our study. The survey was anonymous, and participants provided input on the definition and management of constipation. Results: Of 4000 PCPs, 2579 completed the survey (response rate of 64.5%). Although the majority of respondents were aware of the Rome IV criteria to diagnose constipation, significant differences in the percentage of participants in different geographic countries regarding the definition of constipation were noted. Polyethylene glycol (PEG) was

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Kuwait Oil Company, in its initial approach to employing knowledge management principles across the enterprise, developed an intranet website for employees to publish details of their expertise and examples of their work. PeopleLink was concieved and created in less than a year, winning a Microsoft award on the way.

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Competent Manpower always considered as a big challenge in rapidly transforming business environment. Traditionally, most of the National Oil Companies are dependent on training providers for their technical staff development. However, most companies are judicious in identifying the competency gaps within their employees through either available Competency Management System or customized system. Once they identify the gaps, various training options like basic, advance courses, workshops etc. are being delivered through training providers. However, there are concerns related to the quality assurance and competency gap fillings (for selected learning options) keeping in view of the company's strategic business needs and vision. In order to make the competency development process more effective with quality assurance on their gap fillings, Kuwait Oil Company in the past three to four years has come out with a new approach of engaging their internal resources for knowledge transfer. These

Abstract

Kuwait Oil Company (KOC), an upstream subsidiary of Kuwait Petroleum Corporation (KPC), is in the business of exploration & exploitation of hydrocarbons in the state of Kuwait. While it ranks amongst the major oil companies of the world by virtue of its oil reserves & crude oil production, due to an inherently low GOR of its flagship oil fields, Kuwait has not been very gas-rich and has been compelled to practically utilize all of its produced gas in order to meet its needs. The gas utilization presently ranges in excess of 98.8% which translates to a flaring level of a little above 1% of the produced gas. The plan is to reduce flaring further down to 1% soon by increasing the gas utilization to over 99%. Managing sour rich gas is KOC's biggest challenge since its utilization (or flaring) is largely dependent upon availability of gas sweetening and/or sulfur recovery units. Increasing LP:HP ratio has added another dimension to the challenges being faced by KOC. This paper discusses KOC

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As part of the continual improvement and expansion of Kuwait Oil Company's (KOC) infrastructure, the company is currently executing mega fuel gas and liquid fuel projects for the ever increasing demand of energy consumption. The major overhaul of KOC's existing network is being improved and expanded by three mega projects. Two of which are identical and handle the demands of Minsitry of Electricity & Water (MEW) North & South Kuwait power stations. Whereas, the 3rd project, which is called the Telemetry Project, is being implemented to provide telemetry, automation, leak detection system and fiscal metering for the whole network. Furthermore, this telemetry project has an independent SCADA system to meter, monitor and control large diameter cross-country pipelines remotely from ultra-modern control rooms; Consumers Network Management Center (CNMC) and Secondary Network Management Center (SNMC). The total gas delivered under these projects exceeds four BSCFD and includes custody-transfe

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More than half of the world's oil and gas pipelines are classified as non-piggable1. Pipeline operators are becoming aware there are increased business and legislative pressures to ensure that appropriate integrity management techniques are developed, implemented and monitored for the safe and reliable operation of their pipeline asset. The Kuwait Oil Company (KOC) has an ongoing "Total Pipeline Integrity Management System (TPIMS)" program encompassing their entire pipeline network. In the development of this program it became apparent that not all existing integrity management techniques could be utilized or applied to each pipeline within the system. KOC, upon the completion of a risk assessment analysis, simply separated the pipelines into two categories consisting of piggable and non-piggable lines. The risk analysis indicated KOC"s pipeline network contains more than 200 non-piggable pipelines, representing more than 60% of their entire pipeline system. These non-piggable pipeline

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Subsurface petroleum industry is burdened with uncertainties in every aspect from exploration to production due to limitations of accessibility to reservoir and technology. The most important tools used to understand, quantify and mitigate the uncertainties are geostatistical static modeling and numerical dynamic simulation geomodels. Geomodels are widely used in the industry for characterizing the reservoir and planning favorable development strategy. It is vital instrument for maximizing asset value and optimize project economics. Static geomodels are foundation for all the advanced numerical and analytical solutions to solve the intricacies of reservoir performance. At the same time, it is where all the static and dynamic geological and engineering observations get integrated to develop common understanding of the reservoir for future studies. Understanding of the above observations and imaging of reservoir framework by individual is the basis for building static geomodels. Hence, a

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Objectives: To identify the characteristics of patients with acute coronary syndromes (ACS), their hospital management and in-hospital outcomes, through a prospective registry system in Kuwait. Subjects and Methods: A registry involving all 7 general hospitals in Kuwait was set up. Consecutive patients diagnosed as having ACS over a period of 6 months were enrolled. Results: Of 2,129 patients enrolled, 718 (34%) had ST segment elevation myocardial infarction (STEMI), 576 (27%) non-ST segment elevation myocardial infarction (NSTEMI) and 835 (39%) unstable angina (UA). Thrombolytic therapy was used in 556 (77%) patients with STEMI. The median time from diagnostic electrocardiogram to administration of thrombolytic therapy was 38 min. Almost all patients with ACS (2,050, 96%) received aspirin during hospitalization. Only a minority received clopidogrel, 18 (3%) STEMI, 36 (6%) NSTEMI and 96 (12%) UA patients. The use of glycoprotein IIb/IIIa antagonists was minimal (38 patients, 2%). β-Blo

Abstract

The Upper Burgan is a multilayered reservoir in the Sabiriyah field of northern Kuwait, currently undergoing the initial phase of waterflood development. The reservoir is highly complex with respect to reservoir heterogeneity, connectivity, and structural compartmentalization. Early waterflood performance was too poor to achieve the targeted injection rates. Detailed channel mapping enhanced the subsurface understanding to add value to the ongoing drilling, production, and injection plans. The integrated-reservoir-management (IRM) approach, with a strategy for depletion and pressure support for each segment, increased short-term production and is sustaining the rates. The current and short-term drilling plans target reservoir segments with higher pressures for well placement.

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KwIDF is a complex cross-domain solution consisting of a fully integrated infrastructure which supports field instrumentation, automated workflows and ergonomically designed collaboration solution. This paper describes virtualization technology and associated improvements in processes that will improve the Digital Oil Feld infrastructure resources and allow KOC's Corporate IT Group with tools to achieve more flexibility in delivering business critical data that translates into decision-ready information and collaborative support. After three years of operation, data volumes are increasing rapidly with multiple workflows driven by multiple applications and the current infrastructure is not adequate to provide optimum performance. Added to this, complex workflows are planned for the next stage of development which will demand performance that the current system will not be able to deliver. Though there are dedicated servers for each application, it is difficult to manage the application

Abstract

The United Nations Compensation Commission (UNCC) awarded numerous environmental claims to fund Remediation and Restoration of environmental damage caused during the Gulf War. Based on Decision 258, all claimant countries were required to establish a National Focal Point. Kuwait National Focal Point (KNFP) was established in 2006 to manage the Funds provided to Kuwait and to liaise with various Government Entities to ensure proper execution of the Kuwait Environmental Remediation Program. Based upon a Memorandum of Understanding signed in 2010 by Kuwait National Focal and Kuwait Oil Company (KOC), Kuwait Oil Company was entrusted with handling the works as stipulated in UNCC Claim Funds 5000259, 5000450 Elements 2&3, and 5000454. The original plan was to Construct 17 landfills and to Excavate and Transport 26 million cubic meters of Contaminates soil to the Landfills and BioRemediate residual low level Contamination. Kuwait Oil Company recommended a change in strategy to Kuwait Nationa

Abstract

Drilling deep exploratory wells in Kuwait presents a number of distinctive challenges. The 16" hole section is particularly demanding because it must be drilled through hard interbedded formations including the Zubair sandstone, Ratawi shale, Ratawi limestone, Minagish limestone/dolomitic limestone, Makhul limestone/shale and Hith anhydrite.1 Historically, 16" roller cone bits were used to drill the float equipment and several hundred feet of Zubair in order to get the stabilizers out of the casing. Several such wells have been drilled in North Kuwait with the best case requiring three PDC bits to complete the section subsequent to the roller cone run. The main challenge has been the highly abrasive Zubair formation with UCS in the 12,000-15,000 psi range. Traditionally, drilling abrasive formations with PDC has been challenging even in smaller hole sizes (8-1/2" etc).2 However, as hole size increases torque response is magnified increasing vibration issues. In this application, vibrat

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The recovery of oil production in Kuwait following Liberation required the tremendous efforts of many people. With regards to the oilfields, the initial phase of the recovery process was to shut-off all of the blowouts. This task was on a scale far beyond any other that the industry had ever seen. Specialized firefighting teams composed of both local KOC employees and Industry experts from around the world were assembled to tackle the huge task. These firefighting teams received much attention as the world watched their progress to control an event that impacted the environment of many nations. However, following the successful completion of the firefighting teams there remained the second phase. This phase consisted of the monumental task of returning the oilfields to production. The efforts and accomplishments of this phase are not widely known. It is the focus of this paper to highlight the various techniques incorporated to salvage the damaged wellheads and casing strings and where

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Studying the flow behavior in horizontal section addresses further challenges and complexity. Innovative technologies were developed to overcome the fluid segregation challenges in horizontal sections and cover the entire production profile. In Kuwait, horizontal production logging is typically conveyed on 1.75" electrical coiled tubing which is relatively large size and therefore increases the risk of choking the well or killing low flowrate wells. Also, there is a limitation on the availability of the electrical coiled tubing. Greater Burgan smart ICD wells require a periodic assessment of the production profile and the contribution from each port to overcome the increasing water cut challenge in such a mature field. To identify the source of water, the engineers planned a new strategy to minimize the choking effect through use of smaller coiled tubing size. However, the available small size coiled tubing are not equipped with an electrical line for real-time data streaming. This cha

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The development of Najmah-Sargelu (NJ-SR) limestone fractured reservoir, has a significant role in Kuwait Oil Company (KOC) 2040 strategy. To achieve this objective, hydrocarbon potential across the NJ-SR reservoir will have to be evaluated in the West Kuwait of Kra Al-Maru (Figure 1). First and foremost, this section will have to be drilled to planned section TD, cased off and successfully cemented. This paper discusses KOC experiences and best practices implemented to ensure utilizing managed pressure drilling equipment to achieve a successful 7-5/8-in liner cement job at well depth of 16,945ft. MD (15,756ft. TVD), and reservoir pressure and temperature ranges of 12,000 - 15,000psi and 230 - 280 deg F respectively. This new approach to cementing is based on Managed Pressure Drilling technology. It addresses running the 7-5/8- in liner and cementing it in MPD mode. A step-bystep procedure is provided that ensures a constant bottom pressure is maintained throughout the process. Risk as

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Jurassic Reservoirs in Abduliyah field of West Kuwait are characterized by abnormal pressure variation within and across Jurassic formations, which cause profound drilling problems such as well kicks and mud losses resulting in increased drilling time, cost and materials in addition to reservoir damages. The development of Najmah -Sargelu (NJ/SR) unconventional fractured reservoir requires drilling through high-density fracture swarms to ensure well productivity, which in many instances result in "alternate loss & gain scenario," occasionally, making the well control options limited. On the other hand, drilling through Marrat section encounters drilling difficulties such as mud loss and differential sticking in depleted middle Marrat layers juxtaposed to high-pressure layers of upper intervals. Keeping the above problems in mind, Managed pressure Drilling (MPD) was applied first time in both 9-1/4″ NJ-SR & 6-1/2″ Marrat reservoir sections in a deviated well of Abduliyah field. The Use

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The objective of this study is to predict EOR efficiencies through static wettability contact angle measurement by Machine Learning (ML) modeling. Unlike conventional methods of measuring static wettability contact angle, the unconventional digital static wettability contact angle is captured and measured, then (ML) modeled in order to forecast the recovery based on wettability distribution phenomenon. Due to success in big data collection from reservoir imaging samples, this study applies data science lifecycle logic and utilizes Machine Learning (ML) models that can predict the recovery through wettability contact angles and thus identify the treatment of oil recovery for a candidate reservoir. Using developed morphological driven pixel-data and transformed numerical wettability contact angle data are acquired from Scanning Electron Microscope Backscattered Electron (SEM-BSE) for 27 fresh core samples from top to bottom of the reservoir. These samples are properly sequenced and then

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The selection of the appropriate corrosion inhibitor and the adequate injection rate is a important component of a successful corrosion inhibition program of a carbon steel used in an effluent water injection system in North Kuwait oil fields to prevent and control internal corrosion. Before proceeding to field trials, a comprehensive laboratory screening exercise of potential corrosion inhibitors was performed and used as a basis for selecting the best inhibitor(s). This work will highlight the laboratory testing experiments that were conducted to select the best performing corrosion inhibitors for North Kuwait oil Fields. The testing program will particularly consider for the critical operational parameters such as temperature, flow velocity/shear rate, brine chemistry and the range of chemicals injected in the water injection system. Such a wide range of parameters can be simulated using different laboratory testing experiments, including the wheel test, rotating cylinder autoclaves

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Controlled Source Electromagnetic (CSEM) method provides an effective imaging tool for the reservoirs characterized by distinctive resistivity signature, such as lithological change or fluid saturated channels. Acquisition, processing and modeling of CSEM data provide us an effective complementary information to seismic in characterization and potentially production of viscous oil from the shallow reservoir. CSEM methods using electric dipole sources are very sensitive to thin resistive layers similar to shallow clastic reservoir of North Kuwait. Prior to CSEM survey, the sensitivity of this method to presence of viscous oil bearing layers was tested through synthetic simulation study utilizing several well logs of shallow clastic reservoir. Feasibility study highlighted the good sensitivity of CSEM to resistive shallow clastic reservoir. In CSEM survey layout, the source position started with offset from the receiver spread progressing through the spread and move to the opposite side

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The role and influence of leadership and its commitment have come into sharp focus in the industry worldwide and in particular oil and gas industry recognizes that leadership is a key consideration in the creation of an incident free workplace. The sustained drive and commitment of the management is identified as the most critical aspect of creating and maintaining strong Health Safety Environment (HSE) culture. Kuwait Oil Company (KOC), one of the premier Oil &Gas companies in the Gulf region, gives top most commitment to HSE and considers HSE as one of the key strategic objectives of its business strategy and number one priority in its endeavor towards sustainable development. KOC recognized the importance of leadership towards HSE in not only just delivering the best decisions, but involves commitment to the implementation and practicing. KOC strongly believes that Leadership and Commitment act as fundamentals to HSE performance, and to business success. This paper focuses on the en

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The South Ratqa Heavy Oil field in Kuwait, a key initiative in the nation's thermal recovery endeavors, employs the cyclic steam stimulation (CSS) method within its challenging sandstone formations. The field's operational efficiency was hampered by the original well layout, which necessitated the dismantling of critical components such as the 4-inch production flowline, 2-inch casing gas vent line, and 2 1/16-inch wellhead sensors for maintenance and intervention access by the flushby unit (FBU). This process significantly extended downtime, contributing to a monthly production deficit of around 5, 000 barrels and impacting the field's goal of 60 MBOPD. In 2020, an initial process modification allowed the 4-inch production flowline to remain in place, reducing downtime from 10 days to 5 by avoiding its removal. Building on this improvement, a Management of Change (MOC) implemented by the Fields Development Heavy Oil Team (FDHO) in 2022 further optimized operations. The MOC enabled the

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This book shares the learnings and perspectives of two pioneer women who waded the many challenges posed by multiculturalism and gender in one of the corporate environments more rigid and traditional in the business world: the energy sector in the Middle East. How they managed to create a growth space for themselves and their teams is a story of professional and personal tenacity, shaping a privileged perspective that enabled them to understand the root causes of barriers, as well as envision plausible solutions. They propose in the book not only their vision, but a remarkable collection of unfiltered interviews to influential leaders in the energy sector, to complete a vision of what is key to achieve success when leading or consulting in a corporate environment. The book offers a compilation of very personal approaches to professionalism, resilience, work, and ultimately, success, from within and outside the ranks of highly regarded corporations in the energy sector. The ultimate aim