A checking method for test string with expansion joints in ultra-deep wells

CHEN Ke

doi:10.12055/gaskk.issn.1673-3177.2024.06.011

Natural Gas Exploration and Development >

2024 , Vol. 47 >Issue 6: 87 - 94

DOI: https://doi.org/10.12055/gaskk.issn.1673-3177.2024.06.011

OIL AND GASFIELD DEVELOPMENTOIL DEVELOPMENT

A checking method for test string with expansion joints in ultra-deep wells

CHEN Ke

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Downhole Operation Company, Sinopec Southwest Oil Engineering Co., Ltd., Deyang, Sichuan 618030, China

Revised date: 2024-07-11

Online published: 2024-12-13

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Abstract

As the key target on ultra-deep gas reservoirs deployed by Sinopec in northeastern Sichuan Basin, the Middle Permian Maokou Formation is characterized by deep burial depth, high temperature, ultra-high pressure, and rich hydrogen sulfide. The previous test string was not good enough for Maokou reservoirs in terms of performance and structure due to poor properties and low safety factor. And the string is hard to design and risky in such reservoirs. Thus, considered the needs of exploration and evaluation on the Maokou Formation in this area, a checking method suitable for the test string in ultra-deep and ultra-high pressure wells was established to optimize both quantity and position of expansion joints by analyzing joint’s force and string’s mechanical behaviors, and checking string’s intensity. Its application indicates that (i) a mechanical model is constructed for the string with joints in ultra-deep wells with high temperature and pressure by considering the controls of piston, buckling, and swelling and temperature effects together with expansion joints on the force and deformation of downhole string; and (ii) the optimized string makes acid fracturing and data acquisition in such wells a success, proving the reliability of this method. All research results not only offer strong support for ensuring this formation in the safe and efficient exploration and development, but are of great significance for advancing the exploration and development of deep-seated oil and gas resources.

Key words： Sichuan Basin; Ultra-deep well; Ultra-high pressure; Expansion joint; Test string; String intensity; Stress analysis

Cite this article

CHEN Ke . A checking method for test string with expansion joints in ultra-deep wells[J]. Natural Gas Exploration and Development, 2024 , 47(6) : 87 -94 . DOI: 10.12055/gaskk.issn.1673-3177.2024.06.011

References

[1] 吴裕根, 王陆新, 杨丽丽. 四川盆地大型气田战略发现有利因素分析及展望[J]. 成都理工大学学报(自然科学版), 2023, 50(4): 411-417.
WU Yugen, WANG Luxin, YANG Lili.Analysis and prospect of favorable factors for strategic discovery of large gas fields in Sichuan Basin, China[J]. Journal of Chengdu University of Technology (Science & Technology Edition), 2023, 50(4): 411-417.
[2] 吴裕根, 门相勇, 娄钰, 等. “十三五”以来四川盆地天然气产业发展成效及前景展望[J]. 天然气工业, 2022, 42(12): 145-151.
WU Yugen, MEN Xiangyong, LOU Yu, et al.Natural gas development in the Sichuan Basin: Achievements since the 13^th Five-Year Plan and prospects[J]. Natural Gas Industry, 2022, 42(12): 145-151.
[3] 伍贤柱, 万夫磊, 陈作, 等. 四川盆地深层碳酸盐岩钻完井技术实践与展望[J]. 天然气工业, 2020, 40(2): 97-105.
WU Xianzhu, WAN Fulei, CHEN Zuo, et al.Drilling and completion technologies for deep carbonate rocks in the Sichuan Basin: Practices and prospects[J]. Natural Gas Industry, 2020, 40(2): 97-105.
[4] 夏连彬, 胡锡辉, 李文哲, 等. 蓬莱气区超深井钻井提速技术[J]. 天然气勘探与开发, 2023, 46(1): 91-96.
XIA Lianbin, HU Xihui, LI Wenzhe, et al.Technologies of ROP improvement in ultra-deep wells, Penglai gas area[J]. Natural Gas Exploration and Development, 2023, 46(1): 91-96.
[5] 邱春阳, 张翔宇, 赵红香, 等. 顺北区块深层井壁稳定钻井液技术[J]. 天然气勘探与开发, 2021, 44(2): 81-86.
QIU Chunyang, ZHANG Xiangyu, ZHAO Hongxiang, et al.Drilling-fluid system for deep borehole stability in Shunbei block, Tarim Basin[J]. Natural Gas Exploration and Development, 2021, 44(2): 81-86.
[6] 蒙晓灵, 艾庆琳, 王金成, 等. 鄂尔多斯盆地庆阳气田深层致密砂岩气藏成藏条件[J]. 天然气勘探与开发, 2021, 44(1): 104-110.
MENG Xiaoling, AI Qinglin, WANG Jincheng, et al.Reservoir-forming conditions of deep tight sandstone gas reservoirs, Qingyang gasfield, Ordos Basin[J]. Natural Gas Exploration and Development, 2021, 44(1): 104-110.
[7] 钟佳倚, 王尉, 刘冉, 等. 川东地区茅口组储层特征及主控因素[J]. 断块油气田, 2024, 31(2): 308-318.
ZHONG Jiaqi, WANG Wei, LIU Ran, et al.Characteristics and main controlling factors of reservoirs of Maokou Formation in eastern Sichuan Basin[J]. Fault-Block Oil & Gas Field, 2024, 31(2): 308-318.
[8] 曹华, 山述娇, 田辰, 等. 川东—川北地区二叠系茅口组沉积演化及其油气地质意义[J]. 石油实验地质, 2024, 46(3): 460-471.
CAO Hua, SHAN Shujiao, TIAN Chen, et al.Sedimentary evolution and petroleum geological significance of Permian Maokou Formation in eastern and northern Sichuan Basin[J]. Petroleum Geology & Experiment, 2024, 46(3): 460-471.
[9] 郝毅, 刘冉, 李成海, 等. 川东地区茅口组白云石化滩相储层特征及分布[J]. 天然气勘探与开发, 2023, 46(4): 47-56.
HAO Yi, LIU Ran, LI Chenghai, et al.Characteristics and distribution of dolomitized beach reservoirs in Maokou Formation, eastern Sichuan Basin[J]. Natural Gas Exploration and Development, 2023, 46(4): 47-56.
[10] 李亚, 钟佳倚, 汪华, 等. 川东地区茅一段储层地质特征及勘探潜力分析——以XT1井为例[J]. 天然气勘探与开发, 2023, 46(4): 57-68.
LI Ya, ZHONG Jiayi, WANG Hua, et al.Geological characteristics and exploration prospects of the first member of Maokou Formation in eastern Sichuan Basin: An example from XT1 well[J]. Natural Gas Exploration and Development, 2023, 46(4): 57-68.
[11] 伍强, 陈波, 刘生国. 四川盆地超深高压含硫气井测试管柱设计方法[J]. 油气井测试, 2022, 31(1): 17-21.
WU Qiang, CHEN Bo, LIU Shengguo.A design method of test string for ultra-deep and high-pressure sour gas well in Sichuan Basin[J]. Well Testing, 2022, 31(1): 17-21.
[12] 杨向同, 沈新普, 崔小虎, 等. 超深高温高压气井完井含伸缩管测试管柱的应力与变形特征[J]. 天然气工业, 2019, 39(6): 99-106.
YANG Xiangtong, SHEN Xinpu, CUI Xiaohu, et al.Stress and deformation characteristics of completion and testing tubing string with expansion joints for ultra-deep HTHP gas wells[J]. Natural Gas Industry, 2019, 39(6): 99-106.
[13] 杨向同, 沈新普, 王克林, 等. 完井作业油管柱失效的力学机理——以塔里木盆地某高温高压井为例[J]. 天然气工业, 2018, 38(7): 86-92.
YANG Xiangtong, SHEN Xinpu, WANG Kelin, et al.Mechanical mechanisms of tubing string failures in well completion operation: A case study from one HTHP well in the Tarim Basin[J]. Natural Gas Industry, 2018, 38(7): 86-92.
[14] 龙学, 吴建军, 李晖, 等. 高温高压含硫气井测试优化设计技术与应用[J]. 油气井测试, 2011, 20(3): 37-40.
LONG Xue, WU Jianjun, LI Hui, et al.Test optimization design technology and application of high temperature and high pressure sour gas wells[J]. Well Testing, 2011, 20(3): 37-40.
[15] 曾志军, 胡卫东, 刘竟成, 等. 高温高压深井天然气测试管柱力学分析[J]. 天然气工业, 2010, 30(2): 85-87.
ZENG Zhijun, HU Weidong, LIU Jingcheng, et al.A mechanical analysis of the gas testing string used in HTHP deep wells[J]. Natural Gas Industry, 2010, 30(2): 85-87.
[16] 张智, 蔡楠, 赵苑瑾, 等. 四川盆地超深高含硫气田井下管柱完整性设计理念与方法[J]. 天然气工业, 2023, 43(4): 148-156.
ZHANG Zhi, CAI Nan, ZHAO Yuanjin, et al.Downhole string integrity design for ultra-deep high-sulfur gas fields in the Sichuan Basin: Concept and methodology[J]. Natural Gas Industry, 2023, 43(4): 148-156.
[17] 许小强, 陈琛, 戚斌, 等. 川东北高温高压含硫超深气井测试技术实践[J]. 钻采工艺, 2009, 32(3): 53-55.
XU Xiaoqiang, CHEN Chen, QI Bin, et al.Well testing technology on high temperature and high pressure sulfurous ultra-deep reservoirs in Northeast Sichuan[J]. Drilling & Production Technology, 2009, 32(3): 53-55.
[18] 王宴滨, 石小磊, 高德利, 等. 深层高温高压气井完井测试管柱失效分析——以顺南地区某井为例[J]. 石油钻采工艺, 2022, 44(3): 302-308.
WANG Yanbin, SHI Xiaolei, GAO Deli, et al.Failure analysis of completion test string for deep high-temperature and high-pressure gas well: A case study on a well in Shunnan area[J]. Oil Drilling & Production Technology, 2022, 44(3): 302-308.
[19] 丁亮亮, 练章华, 魏臣兴, 等. 深层气井带伸缩短接测试管柱设计与应用[J]. 天然气工业, 2011, 31(3): 70-72.
DING Liangliang, LIAN Zhanghua, WEI Chenxing, et al.Design and application of well testing string with slip joints in deep gas wells[J]. Natural Gas Industry, 2011, 31(3): 70-72.
[20] 张智, 王波, 李中, 等. 高压气井多封隔器完井管柱力学研究[J]. 西南石油大学学报(自然科学版), 2016, 38(6): 172-178.
ZHANG Zhi, WANG Bo, LI Zhong, et al.Mechanical study of completion string with multi-packer for high pressure gas wells[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2016, 38(6): 172-178.
[21] 刘祥康, 丁亮亮, 李玉飞, 等. 超深气井完井管柱屈曲行为研究[J]. 石油机械, 2020, 48(2): 29-34.
LIU Xiangkang, DING Liangliang, LI Yufei, et al.Study of the buckling behavior of completion strings for ultra-deep gas wells[J]. China Petroleum Machinery, 2020, 48(2): 29-34.
[22] 张智, 王嘉伟, 乔雨, 等. 瞬时关井对屈曲管柱内压力波动的影响研究[J]. 振动与冲击, 2023, 42(6): 61-68.
ZHANG Zhi, WANG Jiawei, QIAO Yu, et al.Influence of instantaneous shut-in on the pressure fluctuation in a buckling string[J]. Journal of Vibration and Shock, 2023, 42(6): 61-68.
[23] 高德利, 黄文君. 井下管柱力学与控制方法若干研究进展[J]. 力学进展, 2021, 51(3): 620-647.
GAO Deli, HUANG Wenjun.Some research advances in downhole tubular mechanics and control methods[J]. Advances in Mechanics, 2021, 51(3): 620-647.
[24] 练章华, 牟易升, 刘洋, 等. 高温高压超深气井油管柱屈曲行为研究[J]. 天然气工业, 2018, 38(1): 89-94.
LIAN Zhanghua, MOU Yisheng, LIU Yang, et al.Buckling behaviors of tubing strings in HTHP ultra-deep wells[J]. Natural Gas Industry, 2018, 38(1): 89-94.

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