Plugging while Drilling Technology Using Oil-Based Drilling Fluid in Fuling Shale Gas Field
-
摘要: 涪陵页岩气田焦石坝区块三开水平段采用油基钻井液钻进过程中，因堵漏材料与现场钻井液配伍性差导致堵漏成功率低、易复漏，针对该问题，研究了油基钻井液随钻防漏堵漏体系。基于"刚柔并济，变形封堵，细粒充填及限制渗透"的堵漏原理，通过室内试验，优选了JHCarb刚性堵漏剂、HIFlex变形颗粒与H-Seal弹性封堵剂，并配制了油基钻井液用随钻防漏堵漏体系。该体系与油基钻井液配伍性好，耐油耐温性能佳，可长时间在井浆中循环，预防渗透性漏失，封堵宽度小于3.0 mm的裂缝，承压能力大于7 MPa。该体系在焦石坝区块页岩气水平井水平段油基钻井液钻进过程中进行了应用，有效防止了易漏地层的渗透性漏失，成功解决了钻进过程中漏速10.0 m3/h左右的漏失问题。研究结果表明，该油基钻井液随钻堵漏技术能解决页岩地层的漏失问题，有效提高了地层承压能力，保证了固井作业顺利进行。Abstract: The horizontal interval in the 3rd Section drilled by using oil-based drilling fluids during the development of the Jiaoshiba Block in Fuling Shale Gas Field was susceptible to low success rates in plugging operations and the reoccurrence of lost circulation due to incompatibility of lost circulation materials (LCM) and drilling fluids.Accordingly,lost circulation systems for oil-based drilling fluids were developed.Based on working principles characterized by "Joint application of rigidity and flexibility,plugging through deformation and filling by fine particles",lab tests were conducted to select JHCarb rigid LCM,HIFlex deformation particles and H-Seal elastic plugging additives to prepare plugging while drilling systems for oil-based drilling fluids.Highly compatible with oil-based drilling fluids and with outstanding performances in oil and temperature resistance,the newly developed systems may be circulated for prolonged periods in drilling fluids to eliminate the possibility of lost circulation.With pressure-bearing capacities over 7 MPa,the system could be deployed to plug fractures with widths below 3.0 mm.The system has been deployed during drilling of the horizontal well interval for shale gas development in Jiaoshiba Block by using oil-based drilling fluids.The system was proved to be capable of effectively eliminating lost circulation with velocities around 10.0 m3/h during drilling.Research results showed the plugging while drilling system of oil-based drilling fluids could effectively enhance the pressure-bearing capacities of formations and protect shale formations from lost circulation.Eventually,the system might facilitate execution of well cementation operations.
-
-
[1] 艾军,张金成,臧艳彬,等.涪陵页岩气田钻井关键技术[J].石油钻探技术,2014,42(5):9-15. AI Jun,ZHANG Jincheng,ZANG Yanbin,et al.The key drilling technologies in Fuling Shale Gas Field[J].Petroleum Drilling Techniques,2014,42(5):9-15. [2] 牛新明.涪陵页岩气田钻井技术难点及对策[J].石油钻探技术,2014,42(4):1-6. NIU Xinming.Drilling technology challenges and resolutions in Fuling Shale Gas Field[J].Petroleum Drilling Techniques,2014,42(4):1-6. [3] 许洁,许明标.页岩气勘探开发技术研究[J].长江大学学报(自然版),2011,8(1):80-82. XU Jie,XU Mingbiao.Exploration and exploitation technologies of shale gas[J].Journal of Yangtze University (Natural Science Edition),2011,8(1):80-82. [4] 王中华.页岩气水平井钻井液技术的难点及选用原则[J].中外能源,2012,17(4):43-47. WANG Zhonghua.Difficulty and applicable principle of the drilling fluid technology of horizontal wells for shale gas[J].Sino-Global Energy,2012,17(4):43-47. [5] 张国仿.涪陵页岩气田低黏低切聚合物防塌水基钻井液研制及现场试验[J].石油钻探技术,2016,44(2):22-27. ZHANG Guofang.The development and field testing of low viscosity and low gel strength polymer collapse-resistant water- based drilling fluid in the Fuling Shale Gas Field[J].Petroleum Drilling Techniques,2016,44(2):22-27. [6] 吕开河,邱正松,魏慧明,等.自适应防漏堵漏钻井液技术研究[J].石油学报,2008,29(5):757-760,765. LYU Kaihe,QIU Zhengsong,WEI Huiming,et al.Study on techniques of auto-adapting lost circulation resistance and control for drilling fluid[J].Acta Petrolei Sinica,2008,29(5):757-760,765. [7] 杨力.彭水区块页岩气水平井防漏堵漏技术探讨[J].石油钻探技术,2013,41(5):16-20. YANG Li.Leak prevention and plugging techniques for shale gas horizontal wells in Pengshui Block[J].Petroleum Drilling Techniques,2013,41(5):16-20. [8] 王燕,王平全,熊继有,等.物理法随钻防漏堵漏技术与钻井液研究现状[J].断块油气田,2008,15(1):93-94. WANg Yan,WANG Pingquan,XIONG Jiyou,et al.Present study on leak resistance and sealing technology while drilling and drilling fluid based on physical method[J].Fault-Block Oil Gas Field,2008,15(1):93-94. [9] 熊继有,薛亮,周鹏高,等.物理法随钻防漏堵漏机理研究[J].天然气工业,2007,27(7):69-72. XIONG Jiyou,XUE Liang,ZHOU Penggao,et al.Mechanism study on physical plugging while drilling[J].Natural Gas Industry,2007,27(7):69-72. [10] 程仲,熊继有,程昆.随钻防漏堵漏技术机理的探讨[J].钻采工艺,2008,31(1):36-39. CHENG Zhong,XIONG Jiyou,CHENG Kun.Mechanism analysis about the technology of leak protection and sealing with drilling[J].Drilling Production Technology,2008,31(1):36-39. [11] 徐同台,刘玉杰,申威.钻井工程防漏堵漏技术[M].北京:石油工业出版社,1997:217-220. XU Tongtai,LIU Yujie,SHEN Wei.Technology of lost circulation resistance and control during drilling engineering[M].Beijing:Petroleum Industry Press,1997:217-220. [12] 崔迎春,张琰.分形几何理论在屏蔽暂堵剂优选中的应用[J].石油大学学报(自然科学版),2000,24(2):17-20. CUI Yingchun,ZHANG Yan.Application of fractal theometry theory to optimal selection of temporary plugging agents[J].Journal of the University of Petroleum,China(Edition of Natural Science),2000,24(2):17-20. [13] CAENN R,DARLEY H C H,GRAY G R.Composition and properties of drilling and completion fluids[M].6th ed.USA:Gulf Professional Publishing,2011:298-312.
-
期刊类型引用(2)
1. 任保友，刘锋报，徐兴梁，罗威. 塔里木山前构造克深某区块盐膏层井漏技术处理. 西部探矿工程. 2018(02): 75-78 . 
百度学术
2. 王秀影，胡书宝，秦义，张彬，游子卫，黄海鸿. 雁翎潜山注气重力驱钻完井难点与对策. 断块油气田. 2017(04): 592-595 . 百度学术
其他类型引用(1)
计量
- 文章访问数: 5840
- HTML全文浏览量: 120
- PDF下载量: 5519
- 被引次数: 3
下载:
