Successful Implementation of Gas Driven Electric Power Grid Project for Wells and Facilities Electrification, Yielding GHG Emissions and Cost Benefits

Muhammed Abdelmonsef Abuhalawa, K. Alsawi, Muhammed Alsaied Atwa, K. Elhady, Mahmoud Elsayed Abd-Elhamed, A. Foda
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In this abstract, we present the challenges we faced during the planning phase and execution strategy applied to overcome these challenges.\n \n \n \n Al-Jahraa Field includes 13 running wells, a waterflood station, and a main oil and gas production plant. The field electricity is supplied by 15 scattered diesel generators for wells and facilities, consuming 100,000 liters of diesel per month. During the feasibility study phase of the project, many challenges were faced which had a negative impact on the project’s economical assessment and that would result in cancelling the project, the challenges were summarized as following; the existence of wells at long distances from the site of the proposed main power station, which would require extending long lengths of electric power cables at a high cost, also the expected delay in the implementation and commissioning of the project resulting from the long delivery time of materials, especially copper cables and main switchgear during the COVID-19 pandemic.\n Several scenarios were studied for connecting the wells to the power station:\n The first scenario was to connect all wells and field facilities directly to the main power station. In this case, the estimated power cable lengths required to be extended were 25,000 Mt, in addition to using two 1 MW generators, one in service and the other would be a standby generator to provide backup power during a repair or maintenance service. This option economic model showed negative NPV due to the high cost of cables and extended execution time. Therefore, this option was cancelled.\n The second alternative was to connect each group of wells to three power stations to be operated using three diesel generators of 500 kVA for each station, with three backup generators. But the implementation of this option would lead to saving the cost of copper cables by 50%, but the cost of purchasing generators would increase due to the increase in the number of stations accordingly, in addition to the increase in operating expenses resulting from the increase in fuel consumption and maintenance cost compared to the first option.\n The third alternative, in which the economics of the project proved to be the best, is to divide the wells into three groups. Each of the two remote groups of wells are connected to an electric distribution panel, and then the two panels are connected by a main cable to the main power station.\n Moreover, the project cost was reduced by 50% due to the implementation of the following innovative optimization approach: Re-using ESP cables instead of copper cables optimized both cost and delivery time as these materials are pulled from ESP wells.These cables are designed for harsh downhole conditions increases its durability and extends its lifetime.Using step-up and step-down transformers enabled us to reduce cable sizing, which also reflected on the lower cost of the project and, accordingly, increased its feasibility to be constructed.An Incremental development approach, was followed in the management and implementation of the project, led to the speed of project delivery, and reduced the project risks and uncertainties.\n \n \n \n The project was completed and commissioned within the allocated budget and time frame, leading to: ○100% reduction of diesel fuel consumption levels.○+68% reduction in total emissions; emissions are reduced by 2.5tons per year on average.○reduced operational costs for each kilowatt hour generated due to using associated gas as fuel and releasing 13 rental generators.○With the replacement of 13 rental generators with just one, the amount of maintenance waste, such as batteries, used oil, oil filters, fuel filters, and so on, is significantly reduced.○These projects showed positive economic indicators (+NPV), with less than 1 years of payback.\n \n \n \n From this project's planning, execution, and results, we can claim that if risk assessments, detailed scope of work, good resource and time management, and cost-effective choices were addressed carefully, shall result in outstanding performance.\n The design of a high-efficiency electrical power supply system and use of associated gas in power generation reduces levels of fuel consumption, GHG emissions, and operational costs.\n Power generation project is a repeated case performed in one of our own assets in Egypt due to positive results and are easily transferable to sister IOCs & NOCs.\n","PeriodicalId":349960,"journal":{"name":"Day 2 Tue, March 14, 2023","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Day 2 Tue, March 14, 2023","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2118/214242-ms","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract

Kuwait Energy is exploring, developing, and operating four concessions located in the Western Desert and the Gulf of Suez in Egypt; the company implemented many projects that had a significant impact on saving operating expenses and reducing greenhouse emissions to preserve the environment. One of these recent executed projects was replacing scattered diesel generators with a Central gas-driven electric power grid in Al- Jahraa field in East Abu-Sennan concession. In this abstract, we present the challenges we faced during the planning phase and execution strategy applied to overcome these challenges. Al-Jahraa Field includes 13 running wells, a waterflood station, and a main oil and gas production plant. The field electricity is supplied by 15 scattered diesel generators for wells and facilities, consuming 100,000 liters of diesel per month. During the feasibility study phase of the project, many challenges were faced which had a negative impact on the project’s economical assessment and that would result in cancelling the project, the challenges were summarized as following; the existence of wells at long distances from the site of the proposed main power station, which would require extending long lengths of electric power cables at a high cost, also the expected delay in the implementation and commissioning of the project resulting from the long delivery time of materials, especially copper cables and main switchgear during the COVID-19 pandemic. Several scenarios were studied for connecting the wells to the power station: The first scenario was to connect all wells and field facilities directly to the main power station. In this case, the estimated power cable lengths required to be extended were 25,000 Mt, in addition to using two 1 MW generators, one in service and the other would be a standby generator to provide backup power during a repair or maintenance service. This option economic model showed negative NPV due to the high cost of cables and extended execution time. Therefore, this option was cancelled. The second alternative was to connect each group of wells to three power stations to be operated using three diesel generators of 500 kVA for each station, with three backup generators. But the implementation of this option would lead to saving the cost of copper cables by 50%, but the cost of purchasing generators would increase due to the increase in the number of stations accordingly, in addition to the increase in operating expenses resulting from the increase in fuel consumption and maintenance cost compared to the first option. The third alternative, in which the economics of the project proved to be the best, is to divide the wells into three groups. Each of the two remote groups of wells are connected to an electric distribution panel, and then the two panels are connected by a main cable to the main power station. Moreover, the project cost was reduced by 50% due to the implementation of the following innovative optimization approach: Re-using ESP cables instead of copper cables optimized both cost and delivery time as these materials are pulled from ESP wells.These cables are designed for harsh downhole conditions increases its durability and extends its lifetime.Using step-up and step-down transformers enabled us to reduce cable sizing, which also reflected on the lower cost of the project and, accordingly, increased its feasibility to be constructed.An Incremental development approach, was followed in the management and implementation of the project, led to the speed of project delivery, and reduced the project risks and uncertainties. The project was completed and commissioned within the allocated budget and time frame, leading to: ○100% reduction of diesel fuel consumption levels.○+68% reduction in total emissions; emissions are reduced by 2.5tons per year on average.○reduced operational costs for each kilowatt hour generated due to using associated gas as fuel and releasing 13 rental generators.○With the replacement of 13 rental generators with just one, the amount of maintenance waste, such as batteries, used oil, oil filters, fuel filters, and so on, is significantly reduced.○These projects showed positive economic indicators (+NPV), with less than 1 years of payback. From this project's planning, execution, and results, we can claim that if risk assessments, detailed scope of work, good resource and time management, and cost-effective choices were addressed carefully, shall result in outstanding performance. The design of a high-efficiency electrical power supply system and use of associated gas in power generation reduces levels of fuel consumption, GHG emissions, and operational costs. Power generation project is a repeated case performed in one of our own assets in Egypt due to positive results and are easily transferable to sister IOCs & NOCs.
成功实施气井和设施电气化燃气电网项目,实现温室气体排放和成本效益
科威特能源公司正在勘探、开发和经营位于埃及西部沙漠和苏伊西湾的四个特许经营权;该公司实施了许多项目,对节省运营费用和减少温室气体排放产生了重大影响,以保护环境。最近执行的项目之一是在东阿布-森南特许权的Al- Jahraa油田用中央燃气驱动电网取代分散的柴油发电机。在这篇摘要中,我们介绍了我们在计划阶段面临的挑战以及克服这些挑战的执行策略。Al-Jahraa油田包括13口运行井、一个注水站和一个主要的油气生产工厂。现场电力由15台分散的柴油发电机提供给油井和设施,每月消耗10万升柴油。在项目可行性研究阶段,面临许多挑战,这些挑战对项目的经济评估产生了负面影响,可能导致项目取消,挑战总结如下:距离拟建主电站很远的地方有井,这将需要以高昂的成本延长长长度的电力电缆,此外,由于材料(特别是铜电缆和主开关柜)在COVID-19大流行期间的交货时间长,预计项目的实施和调试将会延迟。研究了几种将井连接到电站的方案:第一种方案是将所有井和现场设施直接连接到主电站。在这种情况下,预计需要延长的电力电缆长度为25,000 Mt,此外还需要使用两台1兆瓦的发电机,一台在使用中,另一台将作为备用发电机,在维修或维护服务期间提供备用电源。由于电缆的高成本和延长的执行时间,这种选择经济模型显示出负的NPV。因此,该选项被取消。第二种方案是将每组井连接到三个发电站,每个发电站使用三台500千伏安的柴油发电机运行,并配备三台备用发电机。但实施这一方案将使铜电缆的成本节省50%,但由于相应的电站数量增加,购买发电机的成本将增加,此外,与第一个方案相比,燃料消耗和维护成本增加导致运营费用增加。第三种方案是将油井分成三组,该方案已被证明具有最佳的经济效益。两个远程井组中的每一个都连接到一个配电板上,然后这两个配电板通过主电缆连接到主发电站。此外,由于采用了以下创新的优化方法,项目成本降低了50%:重新使用ESP电缆代替铜电缆,优化了成本和交货时间,因为这些材料是从ESP井中取出的。这些电缆专为恶劣的井下条件而设计,提高了其耐久性并延长了其使用寿命。使用升压和降压变压器使我们能够减小电缆尺寸,这也反映了项目成本的降低,从而增加了其建设的可行性。在项目的管理和实施中采用增量开发方法,提高了项目交付的速度,减少了项目的风险和不确定性。该项目在规定的预算和时间框架内完成并投入使用,从而实现了:〇将柴油消耗水平降低100%。〇总排放量减少68%;平均每年减排2.5吨。〇利用伴生气为燃料,减少了13台租赁发电机,每千瓦时的运营费用。〇用1台发电机代替13台租赁发电机,电池、用过的机油、机油滤清器、燃油滤清器等维修废弃物将大幅减少。〇这些项目的经济指标(+NPV)都在1年以内。从这个项目的计划、执行和结果来看,我们可以声称,如果风险评估、详细的工作范围、良好的资源和时间管理,以及成本效益的选择都得到了仔细的处理,将会产生出色的表现。高效电力供应系统的设计和在发电中伴生气的使用降低了燃料消耗、温室气体排放和运营成本。由于取得了积极的成果,发电项目是我们在埃及的一个资产中重复执行的案例,并且很容易转让给姐妹国际石油公司和国家石油公司。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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