注水井管柱完整性评价及注水参数优化研究

doi:10.11885/j.issn.1674-5086.2020.04.24.01

西南石油大学学报(自然科学版) ›› 2022, Vol. 44 ›› Issue (1): 143-150.DOI: 10.11885/j.issn.1674-5086.2020.04.24.01

注水井管柱完整性评价及注水参数优化研究

马国锐¹, 许红林², 张智³, 杨昆³

1. 中国石化西北油田分公司石油工程技术研究院，新疆乌鲁木齐 830011;
2. 重庆科技学院石油与天然气工程学院，重庆沙坪坝 401331;
3. 油气藏地质及开发工程国家重点实验室·西南石油大学，四川成都 610500

收稿日期:2020-04-24 发布日期:2022-01-25
通讯作者: 许红林，E-mail：xuhlaca1986_jy@163.com
作者简介:马国锐，1988年生，男，回族，新疆乌鲁木齐人，工程师，硕士，主要从事油气田开发、完井工艺技术方面的研究工作。E-mail：532823466@qq.com;
许红林，1986年生，男，汉族，四川南充人，讲师，博士，主要从事油气井井筒完整性与安全等方面的基础理论与应用技术研究。E-mail：xuhlaca1986_jy@163.com;
张智，1976年生，男，汉族，四川南充人，教授，博士生导师，主要从事油气井工程、井筒完整性与环空带压管控的教学和科研工作。E-mail：wisezh@126.com;
杨昆，1994年生，男，汉族，四川南充人，硕士，主要从事油气井工程、井筒完整性管理方面的研究工作。E-mail：yangkhun@qq.com
基金资助:
国家科技重大专项(2016ZX05028-001-006，2016ZX05017-003)；中国石化重大科技攻关项目(P18022-1)；重庆市教委科学技术研究项目(KJQN201901519)

Pipe String Integrity Evaluation and Water Injection Parameter Optimization for Injection Wells

MA Guorui¹, XU Honglin², ZHANG Zhi³, YANG Kun³

1. Petroleum Engineering Technology Research Institute, Northwest Oilfield Company, SINOPEC, Urumqi, Xinjiang 830011, China;
2. School of Petroleum Engineering, Chongqing University of Science and Technology, Shapingba, Chongqing 401331, China;
3. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2020-04-24 Published:2022-01-25

摘要/Abstract

摘要： 针对塔河油田注水井井筒管柱完整性失效问题，基于氧腐蚀机理模型和ECE模型建立了注水井管柱腐蚀预测模型并验证其可靠性，研究了注采阶段和注水参数对管柱腐蚀的影响规律，建立了基于拉伸失效的注水井管柱失效判据，绘制了不同注水排量和溶解氧浓度下注水井极限允许注水量图版。研究表明，注水井管柱腐蚀主要发生在注水阶段，随注水排量和溶解氧浓度的增加，管柱腐蚀速率增加，允许极限注水总量降低，溶解氧浓度对管柱腐蚀影响更显著，建议重点加强除氧并合理控制注水排量。研究成果有效指导了现场注水作业制度优化，保障了注水井安全生产，提高了油田注水增油综合效益。

关键词: 注水井, 腐蚀, 管柱完整性, 注水参数, 塔河油田

Abstract: Aiming at the integrity failure of water injection string in Tahe Oilfield, based on the oxygen corrosion mechanism model and ECE model, the corrosion prediction model of water injection string has been established and its reliability verified. The influences of injection production stage and injection parameters on the corrosion rate of water injection string have been studied, and failure criterion has been established on the basis of tensile failure criterion. The charts of the limit allowable water injection volume for water injection wells under different injection displacement and dissolved oxygen concentration have been drawn. The results show that the corrosion of water injection well string mainly occurs during the water injection stage; with the increase of water injection displacement and dissolved oxygen concentration, the corrosion rate of the string increases, the allowable limit water injection amount decreases, and the dissolved oxygen concentration has a more significant impact on the corrosion of the string. It is suggested to strengthen the deoxidization and control the water injection displacement. The research results effectively guide the optimization of on-site water injection operation system, ensure the safety production of water injection wells, and improve the comprehensive benefits of water injection and oil increase.

Key words: water injection well, corrosion, pipe string integrity, water injection parameters, Tahe Oilfield

中图分类号:

TE21

马国锐, 许红林, 张智, 杨昆. 注水井管柱完整性评价及注水参数优化研究[J]. 西南石油大学学报(自然科学版), 2022, 44(1): 143-150.

MA Guorui, XU Honglin, ZHANG Zhi, YANG Kun. Pipe String Integrity Evaluation and Water Injection Parameter Optimization for Injection Wells[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(1): 143-150.

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注水井管柱完整性评价及注水参数优化研究

Pipe String Integrity Evaluation and Water Injection Parameter Optimization for Injection Wells

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