Operators Optimize High-Pressure/High-Temperature and Ultrahigh-Pressure Perforation Strategies Using Laboratory Testing

B. Grove, R. DeHart, J. McGregor, Haggerty Dennis, C. Christopher
{"title":"Operators Optimize High-Pressure/High-Temperature and Ultrahigh-Pressure Perforation Strategies Using Laboratory Testing","authors":"B. Grove, R. DeHart, J. McGregor, Haggerty Dennis, C. Christopher","doi":"10.4043/29611-MS","DOIUrl":null,"url":null,"abstract":"\n Multiple perforation laboratory programs have been conducted during recent years to support high-pressure/high-temperature (HP/HT) and ultrahigh-pressure (UHP) oil and gas field developments at various offshore locations globally. This paper highlights six such projects that supported activities within the Asia-Pacific, North Sea, and US Gulf of Mexico (GOM) (both Miocene and Lower Tertiary) regions. Each program was designed and conducted in collaboration with an operator and field operations personnel to help reduce potential risks, improve operational efficiency, and optimize well performance across a variety of challenging environments.\n Laboratory experiments were based on API RP 19B Sections 2 and 4, with test conditions customized to match specific downhole environments of interest (rock and fluid properties, stress, pressure, temperature, and flow scenarios). Matching downhole conditions at the laboratory proved important because this yields results that can be quite different from those obtained at surface (or scaled) test conditions. Reliable estimations of field perforation skin, sanding propensity, and the effectiveness of subsequent stimulation operations depend on realistic perforation and flow data obtained at relevant downhole conditions. The overriding goal for test design is to create and expose the laboratory perforation in an environment that matches its field counterpart as closely as possible. Beyond obtaining accurate flow data for skin and/or sanding propensity determination, post-test diagnostics, such as computed tomography (CT) and optical techniques, provide additional essential insight into the characteristics of the perforation tunnel, core interior, and the hole through the casing and cement.\n Results from these various programs were used to confirm or, in some cases, guide the field perforating strategy.","PeriodicalId":10968,"journal":{"name":"Day 3 Wed, May 08, 2019","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Day 3 Wed, May 08, 2019","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4043/29611-MS","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

Abstract

Multiple perforation laboratory programs have been conducted during recent years to support high-pressure/high-temperature (HP/HT) and ultrahigh-pressure (UHP) oil and gas field developments at various offshore locations globally. This paper highlights six such projects that supported activities within the Asia-Pacific, North Sea, and US Gulf of Mexico (GOM) (both Miocene and Lower Tertiary) regions. Each program was designed and conducted in collaboration with an operator and field operations personnel to help reduce potential risks, improve operational efficiency, and optimize well performance across a variety of challenging environments. Laboratory experiments were based on API RP 19B Sections 2 and 4, with test conditions customized to match specific downhole environments of interest (rock and fluid properties, stress, pressure, temperature, and flow scenarios). Matching downhole conditions at the laboratory proved important because this yields results that can be quite different from those obtained at surface (or scaled) test conditions. Reliable estimations of field perforation skin, sanding propensity, and the effectiveness of subsequent stimulation operations depend on realistic perforation and flow data obtained at relevant downhole conditions. The overriding goal for test design is to create and expose the laboratory perforation in an environment that matches its field counterpart as closely as possible. Beyond obtaining accurate flow data for skin and/or sanding propensity determination, post-test diagnostics, such as computed tomography (CT) and optical techniques, provide additional essential insight into the characteristics of the perforation tunnel, core interior, and the hole through the casing and cement. Results from these various programs were used to confirm or, in some cases, guide the field perforating strategy.
运营商通过实验室测试优化高压/高温和超高压射孔策略
近年来,为了支持全球不同海上地区的高压/高温(HP/HT)和超高压(UHP)油气田开发,开展了多个射孔实验室项目。本文重点介绍了六个此类项目,这些项目支持亚太、北海和美国墨西哥湾(中新世和下第三纪)地区的活动。每个方案都是与作业者和现场作业人员合作设计和实施的,以帮助降低潜在风险,提高作业效率,并在各种具有挑战性的环境中优化井的性能。实验室实验基于API RP 19B section 2和section 4,并根据特定的井下环境(岩石和流体性质、应力、压力、温度和流动场景)定制了测试条件。与实验室的井下条件相匹配非常重要,因为其结果可能与在地面(或规模)测试条件下获得的结果大不相同。对现场射孔表皮、出砂倾向以及后续增产作业有效性的可靠估计,取决于在相关井下条件下获得的实际射孔和流动数据。测试设计的首要目标是在尽可能接近现场的环境中创建和暴露实验室射孔。除了获得准确的流量数据以确定表皮和/或磨砂倾向外,测试后的诊断,如计算机断层扫描(CT)和光学技术,还提供了对射孔隧道、岩心内部以及穿过套管和水泥的井眼特征的额外基本洞察。这些不同方案的结果用于确认或在某些情况下指导现场射孔策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信