Day 1 Mon, March 13, 2023最新文献

{"title":"The First Off-Grid Solar Power Plant in Iraq","authors":"Rui Ma, Junxian Liu","doi":"10.2118/214077-ms","DOIUrl":"https://doi.org/10.2118/214077-ms","url":null,"abstract":"\u0000 More and more countries around the world are putting more focus on renewable energies due to the surging price of energy and highly concern about environment issues. Solar energy has significant growth and development in recent years, becoming one of the fastest growing sources of renewable energy worldwide. Countries in Middle East, has shown increasing interest in developing its solar energy sector. Iraqi government has launched several initiatives aimed at increasing the use of solar energy and is committed to developing the country's solar energy sector as a means of reducing its dependence on oil exports and meeting its growing energy demand.\u0000 Faihaa Field 2.5 MW Solar Power Plant, which is located in Block 9 approximately 50 km north of Basra City, was invested and commissioned by Kuwait Energy Basra Limited. The power plant is an off-grid 2.5 MW PV solar power plant with 2.5 MWh battery energy storage system. After we put this plant into operation, it has already saved us 1,732 liters diesel per day. Additionally, solar energy is a zero emission energy, so it also help to reduce the emission of greenhouse gases. This is the first off-grid solar power plant in Iraq, which is a notable milestone for solar energy development in this country. The solar energy industry in Iraq will benefit from this project's valuable experience and trained technical team.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128606278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amplitude-Preserving Reconstruction Method for 3D Irregular Data Based on Improved POCS Algorithm","authors":"Yudong Ni, Yinpo Xu, Bo Long, Xinggang Liu, Chun Zhang, Guang Ren, Mingliang Wang","doi":"10.2118/214040-ms","DOIUrl":"https://doi.org/10.2118/214040-ms","url":null,"abstract":"\u0000 In an increasingly complex exploration environment, the acquired seismic data are incomplete and irregular, and field interference often seriously affects the S/N (signal-to-noise ratio) of complex seismic signals. At the same time, weak seismic signals in deep geophysical target are always covered by field noise. How to effectively reconstruct irregular seismic signals and suppress field noise is still a key problem in high-precision seismic exploration. The paper systematically analyzes the inverse problem of sparse optimization for noise suppression of field interferences in irregular seismic data under the framework of 3D curvelet transform, and proposes an amplitude-preserving reconstruction technique for 3D irregular data based on improved POCS algorithm with iterative soft threshold. On the basis of achieving highly sparse representation, the effective seismic signal is inversed iteratively through the change of S/N of adjacent traces to effectively improve the S/N of complex seismic data. At the same time, when solving the sparse optimization problem, the dividing point of noise and effective wave curvelet coefficient is obtained by constructing the ratio formula of curvelet coefficient, which lays the foundation for accurately suppressing noises and reconstructing weak seismic signals. The application of actual data shows that the method can suppress the noises in the complex seismic data, recover the missing data effectively, and improve the fidelity of the reconstructed data.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131855215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-Lateral Horizontal Wells Unlock China Changbei Tight Gas Potential","authors":"Yongjun Liu, Hongkai Zhao, Jichang Wang, Jiacai Sun, Lei Luo, Zao-xia Lu, Xiaodong Zhang, Tao Jiang, Xuanlu Zhu, Zhenhuo Zhang","doi":"10.2118/214334-ms","DOIUrl":"https://doi.org/10.2118/214334-ms","url":null,"abstract":"\u0000 China Changbei block development is an unconventional tight gas project in China Ordos basin. The main pay zone of Changbei is braided river sedimentation with inconsistency of sandstone. Well stimulation with hydraulic frac was the predominant concept for tight gas development in the basin with low individual well producing rate. Innovative Dual-Lateral horizontal well concept was selected for Changbei block thin gas reservoir development. Each cluster planned 3 Dual-Lateral horizontal wells which could cover a 3 km radius circle drainage area. The Dual-Lateral well spud with 16\" hole to about 600m to secure top formation, then continue with 12-1/4\" hole section landing in reservoir formation at around 3,400m AHMD (2,900m TVD) and cased off with 9-5/8\" casing. Two 8-1/2\" lateral legs, with each being turned for around 45 degrees in azimuth to separate from each other, string up as many as sand bodies in designed 2,000m leg length in reservoir section to maximize production. The Dual-Lateral horizontal well design proven to be successful for China Changbei tight gas development.\u0000 By 2022, Changbei completed in total 57 Dual-Lateral horizontal wells and maintained productivity over 3.2BCM per year for more than 14 years, played an important role for China gas supply. This paper detailly described the well design and execution of Dual-Lateral horizontal wells including drilling challenges and countermeasures including casing exit and open hole sidetrack practices, hole cleaning, drill pipe and BHA selection, etc. The paper will give a full picture on Dual-Lateral horizontal wells construction.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127731962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quality Control Technology and Application of Node Consecutive Recording Data","authors":"Hongtao Zhang, Duorong Zhang, Zhe Sun, Jianfeng Wang, Mingli Jie","doi":"10.2118/214042-ms","DOIUrl":"https://doi.org/10.2118/214042-ms","url":null,"abstract":"\u0000 Different from the wired instrument seismic acquisition project, the node instrument seismic acquisition construction project cannot generate the data of common shot gathers or common receiver gathers in real time. Only after segmentation processing can form a common shot gather or a common receiver gather data. The data segmentation operation is very time-consuming, and the generation of the common shot gather needs to wait for all the nodes used by the shot to be recovered, resulting in a lag in the subsequent quality control process, so it is difficult to detect data quality problems in time. In order to improve the efficiency of quality control, this paper proposes a method for the quality control of seismic acquisition data directly for the consecutive recording data of the node. The data integrity check, energy quality control, etc. can be realized. Usually, the check of the recycling node data can be completed on the same day, which ensures the quality of the collected data. The application effect of the actual project also verifies the practicability and effectiveness of the method, which greatly improves the data quality control efficiency of the node collection project, and provides an effective guarantee for the quality of the data collected by the node.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129286488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gas Lift Performance Enhancement Strategies by Downsizing and Using Dummy and Venturi Valves: A Paradigm Shift in Gas Lift Systems Management Philosophy","authors":"Wael Farag Akeil, A. El-Bohoty, El-Sayed Ibrahim Abd El-Mawla, Mohamed El-Hussein El-Dessouky, Islam Ibrahim Mohamed, Abdallah Magdy Darwish, A. K. Khalil","doi":"10.2118/213975-ms","DOIUrl":"https://doi.org/10.2118/213975-ms","url":null,"abstract":"\u0000 Gas lift is a flexible artificial lift method, which requires continuous monitoring to identify diverse ways of production optimization. Gas lift systems optimization is a dynamic process throughout well production life in order to maximize the overall field production. Traditional gas lift valve installation standards were replaced by a new strategy, at which valves were converted to smaller port sizes, dummy and Venturi ones.\u0000 A mature offshore field, with more than 460 gas lifted wells and limited gas availability, undergoes depletion phase. Most of the gas lift design bases were initiated during the production start-up and has standardization set of large gas lift valve port sizes with narrow spacing. Inconstancy of the well flow condition during reservoir depletion added complications to the system and made its operability incompatible with the initial design. Therefore, a screen-out model was created to select candidate wells for downsizing and for dummy and Venturi valves changing-out. After screening, 70 wells were selected for applying the new strategy.\u0000 A successful optimization in gas lift system was carried out after selecting 70 candidate wells. The gas lift valve change-out (GLVCO) operation included changing valves from normal unloading valves to dummy ones, downsizing to smaller port sizes, changing valves from edge-orifice operating to Venturi valves and applying new gas lift design approach in order to increase closing pressures of shallower valves by considering ambient the temperature effect. Improvement in wells performances was evaluated using real-time monitoring system, multi-phase flow meters and portable well testing package. Applying the new strategy resulted in exceptional improvements in 47 wells by injecting gas from deeper valves, decreasing the downstream pressure to prevent re-opening of shallower valves, optimizing gas lift injection rate and enhancing gas lift system stability. Accordingly, more than 7000 BOPD were added to the production stream and led to saving more than 10 MMSCFPD of injection gas to be used for other wells and mitigating flow assurance difficulties regarding scale precipitation due to excessive cooling.\u0000 This paper reveals the effectiveness of smaller port sizes, dummy and Venturi valves in enhancing the gas lift performance and maximizing the recovery. It provides an improvement philosophy for managing the gas lift wells from the design concept to field application.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126097446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Essential Ingredients of Effective Project Management: A Case Study of Project Execution in the South Pars Mega-Projects","authors":"V. Daneshkhah, Gholamreza Younesi, Meisam Karbalaee Akbari, Hamed Daneshkhah","doi":"10.2118/214032-ms","DOIUrl":"https://doi.org/10.2118/214032-ms","url":null,"abstract":"\u0000 During the past decades hundreds of wells have been constructed in the giant South Pars gas field with different approaches and methodologies leading to diverse outcomes and results. Interestingly enough there have been many operators in the field with distinct performances yet by deploying the same vendors and service providers held in common. By considering that it is statistically proven that the larger the project budget, there are higher chances for failure, effective tailoring of methodologies in large scale mega-projects would be crucial and decisive. In many cases failures are a consequence of simply applying methodologies already experienced in small scale projects on complex and sophisticated projects with a variety of influential factors and a huge network of stakeholders. The study has provided an insight on how effective approaches in project management or conversely mismanagement could play as the main rout cause in a chain of events corresponding to either saved time or Non-Productive Times in well construction operations by presenting real cases elaborated in detail.\u0000 Cases show how failure in collecting requirements and recognizing the interdependencies among each necessity in the early stages of the project and subsequently overlooking the related cost, time and risks could cause massive cumulative financial loss. Additionally, failure to recognize wise investments in vendors and service providers as the 1-10-100 rule which explains how failure to take notice of one initial investment escalates the financial loss exponentially would have staggering consequences. The current paper explains how being proactive in an extensive planning phase could ease the execution stage as a great investment in time spent. From a human resource perspective, it has been demonstrated that how the ability and skills of the project team e.g. effective communication in complex networks with multiple reporting relationships and data-driven decisions by statistics could prevent cognitive biases and errors in decision making. Furthermore, powerful alignments come from shared and common motivations and morale for all engaged parties and the supply chain being service providers, rig contractors or the field operator and there should be an answer to the question, what's in it for me when asked by each of these parties.\u0000 Overall the study presents real cases and lessons learned showing how the main rout causes of Non-Productive Times could go back deeply to ineffective project approaches from a project management perspective in a system dynamic chain of events rather than to just address the emerged symptoms of failure in drilling operation.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123561007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Excellence Model to Implement the Safety Management System Effectively in Oil and Gas Industry","authors":"Muatasem Abdulhadi Al Hakami, Mohammed Abdullah Al Salah","doi":"10.2118/213980-ms","DOIUrl":"https://doi.org/10.2118/213980-ms","url":null,"abstract":"\u0000 \u0000 \u0000 The objective of this abstract is to explain how Ras Tanura Producing Department have achieved the President's Award for Safety Excellence for the most improved department among all Saudi Aramco departments.\u0000 The Safety Management System is the framework that steers an organization to maintain a safe working environment besides fulfilling its obligations toward its employees, asset, and the environment. An organization’s leadership is responsible to identify the best approach that helps the safety management system to achieve its expectations and adjust it once needed. The effective implementation of The Safety Management System is crucial for business continuity, especially in a high-risk industry such as oil and gas fields.\u0000 Ras Tanura Producing Department had shown a high level of collaboration and engagement with Loss Prevention Department that led to improve the safety performance and culture among Ras Tanura Producing Department employees. As a result, Ras Tanura Producing Department has achieved an overall score of seventy six (76) percentage during the assessment of safety Compliance Review management system carried by Los Prevention Department in the year of 2021, which demonstrates a commendable improvement from the year of 2018 review score of fifty seven (57) percentage which is recognized as the highest in Saudi Aramco Company.\u0000 Ras Tanura Producing Department safety program effectiveness was assessed utilizing a risk based approach which focuses on the most prevalent areas for improvement identified in an analysis of Saudi Aramco safety performance and a thorough review of Ras Tanura Producing Department’s documentation. The review also assessed the implementation of the Eight Lifesaving Rules. Evidently, Ras Tanura Producing Department has an opulent and mature Safety Management System that reveals comprehensive and logically written processes. These processes have gone through several reviews and revisions. Also, Ras Tanura Producing Department piloted management monthly safety audits and the verification, closure system of major incidents recommendations, which have been recognized as best practice.\u0000 \u0000 \u0000 \u0000 One of the tools that Ras Tanura Producing Department developed in this regard is so-called the \"Excellence Model\". The creation of this model was the outcome of several brainstorming sessions and workshops discussing all the challenges that the department faced in day-to-day business. The challenges include but are not limited to operating three main oil fields in scattered locations, close proximity to the populated area, a youth workforce, and thousands of contractor employees working on projects that interfaced with onstream facilities.\u0000 The model consists of five main elements namely the Leadership Commitment, Loss Prevention Engagement, Field Compliance Review, Performance Monitoring, and Continuous Improvement. It is worth mentioning that under each element, several programs act as enablers to help the department t","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131833208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advanced Processing of Time-Lapse Electromagnetic Data Sets and a Novel Segmented and Contactless Electromagnetic Thickness Measurement of the First Barrier","authors":"Faisal Alnakeeb, Siddharth Jain, Christna Golaco, Vasilii Skutin, A. Elkadi, Ilnur Bikbulatov","doi":"10.2118/213981-ms","DOIUrl":"https://doi.org/10.2118/213981-ms","url":null,"abstract":"\u0000 This paper will share the findings of time-lapse monitoring from two corrosion surveys conducted four years apart in the subject well; present a new processing methodology that improved metal thickness estimation and yielded better results when applied to data from two legacy wells; and describe a novel surveillance tool of unique design that was also deployed in the subject well. The positive and encouraging results achieved using this tool will also be discussed.\u0000 Electromagnetic pulse surveys were conducted in 2016 and 2020 to evaluate independently the metal loss in three casing barriers. The 2016 analysis involved a simplistic data processing method. A more sophisticated processing technique was recently applied to both surveys (2016 and 2020). This new method estimates the thickness for each barrier through forward modelling based on the numerical solution of the Maxwell equations. A newly introduced electromagnetic tool was also run in combination. This is a unique approach because it provides a segmented electromagnetic metal thickness evaluation of the first barrier without the need for pad contacts with the casing wall.\u0000 The simplistic processing from 2016 assumed, for each barrier, a baseline for the tool readings that corresponded to the nominal casing thickness. It then translated the deflections from this baseline into a metal loss or gain. These figures were output only when they exceeded the tool's accuracy. The advanced processing that was used in 2020, which is based on forward modelling, estimated less metal loss in general in comparison with the 2016 survey. These results agreed with the segmented tool estimations for the first barrier, which was run in combination in 2020. This confirms the methodology's robustness and accuracy. In addition, this new method outputs metal loss figures at every depth point regardless of the tool accuracy. The new processing was applied to previously acquired data sets in two additional wells in the same field, and the obtained results were very satisfactory.\u0000 The new tool, which provides a segmented electromagnetic metal thickness evaluation, also delivered exciting results by providing accurate thickness estimations in eight circumferential sectors of the casing wall without pad contact. This constitutes a substantial improvement over the existing all-round and averaged measurement offered by conventional electromagnetic tools. These segmented results enabled the client to make a better-informed decision about the well and to postpone an expensive workover.\u0000 This paper confirms the necessity of time-lapse surveys for monitoring the integrity of downhole tubulars. It also proves that numerical solution of the Maxwell equations through forward modelling of acquired electromagnetic data yields robust and more accurate thickness estimations than the previously used methods. Finally, it demonstrates the effectiveness of the new segmented and contactless electromagnetic tool for assessing the firs","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132346903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seismic-based Reservoir Dynamic Characterization During Reservoir Development","authors":"Bo Wang, Jine Chen, Qihai Nie, Xin Chen, D. Xiao, Qunli Qi, F. An, Bo Peng, Xiaoli Gao, Qiang Li","doi":"10.2118/214068-ms","DOIUrl":"https://doi.org/10.2118/214068-ms","url":null,"abstract":"\u0000 Seismic data plays a crucial role in reservoir characterization. Quantitative seismic reservoir characterization workflow aims to extract reservoir properties from seismic data to identify sweet spots for exploration, appraisal and development drilling. This is all the more true if the data is to be used in 4D seismic surveys (Time-lapse seismic) for reservoir monitoring. 4D seismic data can help to capture the reservoir change, realize the reservoir dynamic characterization and facilitate an enhanced understanding for reservoir potential, so as to have the better business decisions and optimized field development plans. In this study, use a SAGD (Steam-Assisted Gravity Drainage) field to demonstrate how to extract reservoir dynamic change and evaluate the reservoir performance from 4D seismic data.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115047154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Water Production Diagnostics and Formation Evaluation to Maximize Workover Profitability of ESP Oil Producers Using Electrical Coiled Tubing, Gulf of Suez, Egypt","authors":"Ahmed ElSayed Ghonim, A. El-Farran, A. Atef, Mohamed El-Abasy, E. Haridy, Mohamed Mamdouh Aboeleneein, Sameh Mohamed Hashim Abdulaziz, Sara Omar Mohamed","doi":"10.2118/214031-ms","DOIUrl":"https://doi.org/10.2118/214031-ms","url":null,"abstract":"\u0000 Well intervention in highly deviated sour oil wells operating with Electrical Submersible Pump (ESP) completions have always been challenging for well intervention operations due to the restrictions in the wellbore. Workover operations in such harsh environments involve several operational risks and high related costs. Electrical Coiled Tubing (E-CT) equipped with tubing encapsulated mono-conductor cable was used to gather accurate intervention data with real-time logging capabilities. The system used didn't require the temporary installation of a test ESP completion string after pulling the failed ESP pump, saving cost, overall intervention time, optimizing zonal isolation for the water producing intervals, and increasing well recovery in these oil wells.\u0000 This case study presents a challenging workover for a mature field where E-CT was used to convey a combination of Pulsed Neutron Logging (PNLT) and Production Logging Tools (PLT) while pumping Nitrogen (N2) to lift the well. This enabled maximizing the reservoir production potential while monitoring the dynamic drawdown being applied to overcome the masking potential for the PNLT due to killing operations during workover. Real-time readings from the PNLT, PLT continuous spinners, gamma-ray, pressure, and temperature sensors accurately identified the well's water contributing intervals and flow profile. This accurate interpretation of the water saturation profile across the reservoir was then used for optimum reservoir management and selective zonal isolation. Dynamic wellbore modeling software was used to design the lifting and logging operations for optimal operational efficiency and to increase oil production and reduce water production.\u0000 Deployment of E-CT in such a harsh environment was challenging in terms of operational execution to ensure safe conveyance of the real-time logging tools while performing the conventional lifting of the well. Intervention time was optimized through two runs to evaluate the formation performance and water saturation profile before isolating the water-producing intervals.\u0000 Such utilization of E-CT allowed accurate formation evaluation, water saturation profiling, and nitrogen lifting of the well resulting in an optimal intervention. Results showed a 50% reduction in water production and an increasing well potential from the upper intervals. Total workover and intervention costs were reduced dramatically compared to other treatment options for water production problems with potential workover complications and deferred production.","PeriodicalId":286390,"journal":{"name":"Day 1 Mon, March 13, 2023","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134489910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}