ZX105井卡套管事故原因分析及处理工艺

张珍

doi:10.3969/j.issn.1001-5620.2018.03.014

ZX105井卡套管事故原因分析及处理工艺

doi: 10.3969/j.issn.1001-5620.2018.03.014

张珍

中石化西南石油工程公司钻井工程研究院, 四川德阳 618000

基金项目:

“十三五”国家科技重大专项“优快钻井工具及关键技术应用研究”（2016ZX05038006-004）。

详细信息

作者简介:
张珍,工程师,1980年生,现在主要从事钻井液技术的研究工作。电话13550633102;E-mail:zhenzhen0607@163.com。

中图分类号: TE258
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出版历程
- 收稿日期: 2018-01-13
- 刊出日期: 2018-05-30

Analyses of the Cause of Casing Sticking in Well ZX105 and the Techniques of Freeing the Sticking

ZHANG Zhen

Research Center of Drilling Engineering, Southwest Petroleum Engineering Co., Ltd., Sinopec, Deyang, Sichuan 618000

摘要

摘要: ZX105井是部署在四川盆地川西凹陷知新场构造的首口勘探水平井，目的层为下沙溪庙组，设计完钻井深为3 726 m（垂深为2 506 m），水平段长为1 001 m。该井二开下套管至井深2 847 m，坐吊卡接悬挂器后活动套管时遇卡。针对ZX105井下套管遇卡技术难题，通过卡套管原因分析，判断本次卡套管类型为压差黏附卡套管，并得出井身结构缺陷是卡套管的主要原因。分析表明，一开套管下深浅，二开下套管遇卡时套管已进入水平段214 m，上部套管没有足够的冲击重量使水平段套管移动，同时井底较高的正压差，是造成本次水平井卡套管的主要原因，由此形成了套管解卡处理思路。该井采用了降低钻井液密度、三次泡解卡剂、环空憋压等手段后，首次实现川西水平井套管解卡成功，为川西中江地区下沙溪庙目的层的开发提供了宝贵施工经验。
- 钻井液 /
- 水平井 /
- 知新场构造 /
- 下沙溪庙组 /
- 卡套管 /
- 解卡
Abstract: Well ZX105 is the first exploratory horizontal well drilled in Zhixinchang structure in western Sichuan. This well, targeted the lower Shaximiao formation, was designed to drill to measured depth of 3,726 m (TVD 2,506 m). The designed length of the horizontal section was 1,001 m. The casing for the second interval was run and got stuck at 2,847 m when running lift sub and casing hanger to move the casing string. It was believed, through analyses, that it was a pressure differential sticking, and deficiencies of the casing program was the main cause of the sticking. It was also believed that the depth at which the casing for the first interval was run was not enough, and the point at which the casing got stuck is 214 m into the horizontal section, the weight of the casing string in the upper section is not enough to push the casing inside the horizontal section to move forward. The high positive differential pressure at the bottom of the hole thus caused the casing string to get stuck. Based on the analyses, it was decided to lower the mud weight, soak the stuck point with pipe freeing solution, and pressurize the annular space. The stuck casing string finally got free with these measures. This is the first time the stuck pipe gets free in horizontal drilling in the west of Sichuan, and the practice has provided valuable experiences for the development of the target zone, the Lower Shaximiao formation in Zhongjian area, western Sichuan.
- Drilling fluid /
- Horizontal well /
- Zhixinchang structure /
- Lower Shaximiao formation /
- Casing sticking /
- Release of stuck pipe

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参考文献(12)

[1]	杨志彬,张国东,黄建林,等. 川西新场地区须家河组工程地质特征及优快钻井对策研究[J]. 石油天然气学报,2008,30(6):21-25. YANG Zhibing,ZHANG Guodong,HUANG Jianlin, et al.Study on engineering geological characters and fast drilling methods of xinchang xujiahe formation in west sichuan[J].Journal of Oil and Gas Technology,2008, 30(6):21-25.
[2]	杨国兴,张珍,周成华. 川西沙溪庙组水平井封堵防卡钻井液技术[J]. 钻井液与完井液,2012, 29(4):35-37. YANG Guoxing,ZHANG Zhen,ZHOU Chenghua. Sealing and pipe-stuck prevention drilling fluid technology in horizontal well at shaximiao group in chuanxi[J]. Drilling Fluid & Completion Fluid,2012,29(4):35-37.
[3]	周志林,杨炳祥.川西中浅层安全高效钻井对策研究[J]. 新疆石油天然气,2016,12(1):45-49. ZHOU Zhilin,YANG Bingxiang.The research on safe & efficient drilling of shallow formation in western sichuan[J].Xinjiang Oil & Gas,2016,12(1):45-49.
[4]	朱礼平,李群生,张继尹. 川西沙溪庙组水平井固井技术难点及对策[J]. 钻采工艺,2014,37(1):18-20. ZHU Liping,LI Qunsheng,ZHANG Jiyin.Difficulties and countermeasures of horizontal well cementing technology in cuanxi shaximiao formation drilling & production technology[J].Drilling & Production Technology,2014, 37(1):18-20.
[5]	朱可尚. 胜利油田埕北D-3井卡套管事故处理工艺[J]. 钻采工艺,2003,26(2):93-94. ZHU Keshang.Treatment technology of pipe-sticking in well chen beid-3 of sheng li oilfeild[J].Drilling and Production Technology,2003,26(2):93-94.
[6]	董志辉,徐云龙,张玲. 中江19H井卡钻原因分析及预防技术措施[J]. 探矿工程,2014,41(2):37-41. DONG Zhihui,XU Yunlong,ZHANG Ling. Analysis on the reasons of pipe-sticking in well 19 h of zhongjiang district and the preventive measures[J].Exploration Engineering(Rock & Soil Drilling and Tunneling), 2014,41(2):37-41.
[7]	孙庆春,赵利锋,刘涛. 大牛地气田水平井通井卡钻处理[J]. 探矿工程(岩土钻掘工程),2015,42(9):34-36. SUN Qingchun,ZHAO Lifeng,LIU Tao.Sticking treatment in drifting for a horizontal well of daniudi gas field[J].Exploration Engineering(Rock & Soil Drilling and Tunneling),2015, 42(9):34-36.
[8]	陈在君,韦海防,李登前. 复合酸液解除S120-49-84H井卡钻故障[J]. 钻井液与完井液,2013,30(1):24-27. CHEN Zaijun,WEI Haifang,LI Dengqian.Application on technology of releasing pipe-stuck by composite acid fluid in well S120-49-84H[J].Drilling Fluid & Completion Fluid,2013,30(1):24-27.
[9]	王平全,贺江红,蒲晓林,等. 甲酸钾钻井液技术现场应用[J]. 西南石油学报,2001,23(6):14-17. WANG Pingquan,HE Jianghong,PU Xiaolin,et al. Application of KCOOH drilling fluid technology[J]. Journal of Southwest Petroleum Institute,2001,23(6):14-17.
[10]	李益寿,王卫国,黄承建,等. 甲酸盐钻井液技术在吐哈油田水平井的应用[J]. 钻井液与完井液,2006, 23(6):8-11. LI Yishou,WANG Weiguo,HUANG Chengjian,et al. Application of formate mud in horizontal wells in tuha oilfield[J].Drilling Fluid & Completion Fluid,2006,23(6):8-11.
[11]	郭永宾,管申,刘智勤,等. 涠洲12-1油田水平井无固相有机盐钻井液技术[J]. 石油钻探技术,2017,45(6):31-36. GUO Yongqiang,GUAN Shen,LIU Zhiqin,et al. Solid-free organic salt drilling fluid for horizontal wells in the weizhou 12-1 oilfield[J]. Petroleum Drilling Techniques,2017,45(6):31-36.
[12]	邱春阳, 叶洪超, 王兴胜, 等. 诺1井钻井液技术及复杂情况处理[J]. 钻井液与完井液,2017,34(6):46-51. QIU Chunyang, YE Hongchao, WANG Xingsheng,et al. Drilling fluid technology used in drilling well nuo-1 and handling of downhole complications[J].Drilling Fluid & Completion Fluid,2017,34(6):46-51.