高温高压井筒腐蚀监测系统研制与应用

doi:10.11885/j.issn.1674-5086.2021.05.26.01

西南石油大学学报(自然科学版) ›› 2023, Vol. 45 ›› Issue (6): 147-156.DOI: 10.11885/j.issn.1674-5086.2021.05.26.01

高温高压井筒腐蚀监测系统研制与应用

龙武¹, 刘振东², 张江江¹, 李芳¹, 曾德智²

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. 油气藏地质及开发工程全国重点实验室·西南石油大学, 四川成都 610500

收稿日期:2021-05-26 发布日期:2024-01-06
通讯作者: 曾德智,E-mail:zengdezhi1980@163.com
作者简介:龙武,1983年生,男,汉族,湖南华容人,副研究员,硕士,主要从事高温高压油气井完井测试方面的研究工作。E-mail:longw.xbsj@sinopec.com;刘振东,1994年生,男,汉族,陕西延安人,博士研究生,主要从事油气田腐蚀与防护方面的研究工作。E-mail:421886244@qq.com;张江江,1983年生,男,汉族,山西怀仁人,副研究员,硕士,主要从事油气田腐蚀与防护方面的研究工作。E-mail:zhangjangj.xbsj@sinopec.com;李芳,1986年生,女,汉族,山西应县人,副研究员,硕士,主要从事油气田井下腐蚀与防护方面的研究工作。E-mail:lfang.xbsj@sinopec.com;曾德智,1980年生,男,汉族,四川宜宾人,教授,博士,主要从事油气田腐蚀与防护、石油管力学与环境行为方面的研究工作。E-mail:zengdezhi1980@163.com
基金资助:
国家自然科学基金（51774249）；四川省科技计划（21JCQN0066）

Development and Application of High Temperature and High Pressure Wellbore Corrosion Probe Monitoring System

LONG Wu¹, LIU Zhendong², ZHANG Jiangjiang¹, LI Fang¹, ZENG Dezhi²

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

Received:2021-05-26 Published:2024-01-06

摘要/Abstract

摘要： 为解决高温高压井筒油套环空腐蚀监测难题，基于电感腐蚀监测技术原理，采用多组测量试片串行连接、激励信号同步实施的方法，设计开发了耐温140 ℃、耐压70 MPa、多通道同步监测油套管腐蚀的管状腐蚀探针监测系统，该探针监测装置与油管的连接方式采用卡接式连接，避免了装置焊接对油管腐蚀的影响。采用现场采出液在140 ℃、70 MPa实验条件下，对该装置的耐温耐压性能和数据可靠性进行了测试，监测数据与高温高压腐蚀模拟结果偏差低于5%，耐温耐压性能良好。最后，对该腐蚀监测系统进行了现场应用测试，结果表明，研制的井筒腐蚀探针监测系统运行良好，监测数据与现场挂片相对误差为8.32%。该监测系统能够满足苛刻环境下井筒的腐蚀监测要求，为有效掌握井筒油套环空腐蚀状况和高温高压井筒的腐蚀监测提供了新的技术手段。

关键词: 高温高压, 油气井, 油套环空, 腐蚀监测, 探针

Abstract: In order to solve the problem of high-temperature and high-pressure wellbore annulus corrosion monitoring, based on the principle of inductive corrosion monitoring technology, a method of serial connection of multiple sets of measurement test strips and simultaneous implementation of excitation signals is designed and developed, which is a tubular corrosion probe monitoring system for simultaneous monitoring of tubing and casing corrosion with multiple channels. The connection between the probe monitoring device and the tubing adopts a snap-fit connection, avoids the impact of device welding on tubing corrosion. Under the experimental conditions of 140 ℃ and 70 MPa, the temperature and pressure resistance and data reliability of the device is tested using on-site produced fluid. The deviation between the monitoring data and the simulation results of high temperature and high pressure corrosion is less than 5%, and the temperature and pressure resistance is good. Finally, the corrosion monitoring system is tested on-site. The results show that the developed wellbore corrosion probe monitoring system works well, and the relative error between the monitoring data and the on-site coupon is 8.32%. It is concluded that the monitoring system can meet the requirements of wellbore corrosion monitoring in harsh environments, and provides a new technical means for effectively grasping the wellbore oil casing annulus corrosion status and high-temperature and high-pressure wellbore corrosion monitoring.

Key words: high temperature and high pressure, oil and gas well, oil sleeve annulus, corrosion monitoring, probe

中图分类号:

TE38

龙武, 刘振东, 张江江, 李芳, 曾德智. 高温高压井筒腐蚀监测系统研制与应用[J]. 西南石油大学学报(自然科学版), 2023, 45(6): 147-156.

LONG Wu, LIU Zhendong, ZHANG Jiangjiang, LI Fang, ZENG Dezhi. Development and Application of High Temperature and High Pressure Wellbore Corrosion Probe Monitoring System[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2023, 45(6): 147-156.

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高温高压井筒腐蚀监测系统研制与应用

Development and Application of High Temperature and High Pressure Wellbore Corrosion Probe Monitoring System

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