Key Technology of Drilling Liner Hanger and Tieback Device in Staged Fracturing
-
摘要: 为进一步解决致密油气和页岩气储层压裂需求、井眼条件与管柱成本之间的矛盾，研究了分段压裂用尾管悬挂器与回接装置关键技术。通过分析固井漏失及储层高破裂压力需求之间的矛盾，提出尾管固井后快速进行全通径压裂施工；通过研究固井完井技术优化组合方式，提出了水平井尾管固井后实施定点射孔寻找甜点的分段压裂储层改造工艺；通过优化设计尾管固井及回接压裂工具，实现了固井完井工具一体化密封锚定。对分段压裂用尾管悬挂器与回接装置进行了室内地面整机试验，悬挂器及插头整机密封能力达到90 MPa，锚定回接插头与悬挂器之间的抗拉强度达到1 800 kN，插头丢手顺利。该技术在大牛地气田、东胜气田及长庆油田陇东区块的27口水平井进行了应用，施工压力总体较高，但都完成了压裂作业，且总体效果良好。研究表明，分段压裂用尾管悬挂器与回接装置关键技术可以解决压裂施工现场所需的高压及上顶力难题，为回接固井后分段压裂工艺提供高承压、大通径和锚定可回收的井筒，从而保障储层改造效果。Abstract: In order to solve the problems of high cost,poor conditions,and frac interference,in tight oil and gas and shale gas,a new technique for controlling the liner tieback string for staged fracturing was studied and developed.Based on the analysis and research on the contradiction between cementing leakage and high fracturing pressure of the reservoir,the rapid full-size fracturing was proposed after liner cementing.Through the study on the optimized combination mode of cementing and completing technologies,this paper put forward one segmental fracturing reservoir reconstruction technique which identified zones of preferential enrichment (sweet spots) with fixed-point perforation after the liner cementing in horizontal wells.By means of optimizing the design of the liner cementing and the tie back fracturing tools,the integrated sealing anchor of the cementing and completing tools was realized.The test results proved that the sealing ability of the liner hanger and tie back stinger was up to 90 MPa,and the tensile strength between the tie back stinger and the liner hanger was 1 800 kN,and the tie back stinger was released successfully.In addition,this technology was applied in more than 27 wells,including the Daniudi Gas Field,Dongsheng Gas Field and Longdong Block of the Changqing Oilfield.Although the operation pressures in these applications were high,all fracturing operations were finished successfully,with good application effects being achieved.Research results showed that the new technology of liner tieback string for staged fracturing could solve the problems of the high pressure and jacking force required for fracturing operations,and it could provide a high pressure,large drift diameter,retrievable and anchored wellbore for a segmented fracturing technique after tie back cementing,thus having the effect of protecting the reservoir drive.
-
Keywords:
- reservoir reconstruction /
- staged fracturing /
- liner cementing /
- tieback string /
- anchor /
- releasing
-
-
[1] 陈作,曾义金.深层页岩气分段压裂技术现状及发展建议[J].石油钻探技术,2016,44(1):6-11. CHEN Zuo,ZENG Yijin.Present situations and prospects of multi-stage fracturing technology for deep shale gas development[J].Petroleum Drilling Techniques,2016,44(1):6-11. [2] 张永春,狄伟,何青,等.水平井分段酸压工艺在大牛地气田的研究与应用[J].石油天然气学报,2013,35(9):109-112. ZHANG Yongchun,DI Wei,HE Qing,et al.The application and research of sectional acidic fracturing technology in horizontal wells of Daniudi Gasfield[J].Journal of Oil and Gas Technology,2013,35(9):109-112. [3] 韩峰,王建全,薛占峰,等.致密油气藏水平井全通径压裂技术[J].中国海洋平台,2017,32(3):12-17. HAN Feng,WANG Jianquan,XUE Zhanfeng,et al.Multi-stage full-bore fracturing technology for horizontal well in tight reservoirs[J].China Offshore Platform,2017,32(3):12-17. [4] 马开华.关于国内尾管悬挂器技术发展问题的思考[J].石油钻采工艺,2008,30(6):108-112. MA Kaihua.A consideration on the development of liner hanger technologies in China[J].Oil Drilling Production Technology,2008,30(6):108-112. [5] 付玉坤,喻成刚,尹强,等.国内外页岩气水平井分段压裂工具发展现状与趋势[J].石油钻采工艺,2017,39(4):514-520. FU Yukun,YU Chenggang,YIN Qiang,et al.Development status and trend of shale-gas horizontal well staged fracturing tools at home and abroad[J].Oil Drilling Production Technology,2017,39(4):514-520. [6] 张国安,姚辉前,李维斌,等.水平井尾管回接分段压裂技术的应用[J].石油机械,2015, 43(9):105-108. ZHANG Guoan,YAO Huiqian,LI Weibin,et al.Application of horizontal well liner tie back and staged fracturing technology[J].China Petroleum Machinery,2015,43(9):105-108. [7] 郑晓志,谷磊,马兰荣,等.可旋转膨胀尾管悬挂器性能研究及现场试验[J].石油钻探技术,2016,44(3):55-60. ZHENG Xiaozhi,GU Lei,MA Lanrong,et al.Performance and field tests of rotary expandable liner hanger[J].Petroleum Drilling Techniques,2016,44(3):55-60. [8] 阮臣良,李富平,李风雷,等.尾管悬挂器超高压封隔及回接技术应用研究[J].长江大学学报(自科版),2016,13(19):42-45. RUAN Chenliang,LI Fuping,LI Fenglei,et al.Application of ultra-high pressure ZXP packer and tie-back technology[J].Journal of Yangtze University(Natural Science Edition),2016,13(19):42-45. [9] 谭奇,张明华,高剑玮,等.川西水平井尾管悬挂及回接固井技术[J].天然气与石油,2015,33(5):59-61,69. TAN Qi,ZHANG Minghua,GAO Jianwei,et al.Horizontal well liner hanging and tie-back cementing technology in Western Sichuan[J].Natural Gas and Oil,2015,33(5):59-61,69. [10] 李润,龙远盛,尹红斌.水平井尾管固井技术及其在苏里格气田的应用[J].天然气工业,2012,32(4):66-68. LI Run,LONG Yuansheng,YIN Hongbin.Liner cementing in horizontal wells and its field pracitices in the Sulige Gas Field[J].Natural Gas Industry,2012,32(4):66-68. [11] 朱和明,薛占峰,赵聪,等.分段压裂专用悬挂器关键技术研究与应用[J].石油机械,2013,41(5):79-84. ZHU Heming,XUE Zhanfeng,ZHAO Cong,et al.Research and application of key technology of special hanger for staged fracture[J].China Petroleum Machinery,2013,41(5):79-84. -
期刊类型引用(11)
1. 庞涛，姜在炳，惠江涛，贾秉义. 煤系水平井定向射孔压裂裂缝扩展机制. 煤田地质与勘探. 2024(04): 68-75 . 
百度学术
2. 安果涛，谢昕，孔祥伟，王存武. 射孔间距-倾角对深煤层水力裂缝扩展影响的离散元分析. 科学技术与工程. 2024(18): 7623-7629 . 百度学术
3. 杨兆中，杨晨曦，李小刚，闵超. 基于灰色关联的逼近理想解排序法的煤层气井重复压裂选井——以沁水盆地柿庄南区块为例. 科学技术与工程. 2020(12): 4680-4686 . 百度学术
4. 马东民，王传涛，夏玉成，张嘉睿，邵凯，杨甫. 大佛寺井田煤层气井压裂参数优化方案. 西安科技大学学报. 2019(02): 263-269 . 百度学术
5. 李昀昀，傅小康，李千山，孙宁蔚. 我国煤层气排采技术研究现状. 石油化工应用. 2019(04): 1-4+10 . 百度学术
6. 孙宁蔚. 基于灰色关联的沁水盆地煤层气井排采特征分析. 石油化工应用. 2019(11): 7-9+32 . 百度学术
7. 杨兆中，刘云锐，张平，李小刚，易良平. 煤层气直井地层破裂压力计算模型. 石油学报. 2018(05): 578-586 . 百度学术
8. 杨新新，王伟锋，姜帅，杨浩珑. 抗高温高密度低伤害压裂液体系. 断块油气田. 2017(04): 583-586 . 百度学术
9. 张快乐，刘化普. 利用数值试井反演井组低渗透储层参数. 中外能源. 2017(09): 44-48 . 百度学术
10. 李玉伟，贾丹，高睿，高长龙，米洁翰，艾池. 煤岩复杂裂缝长期导流能力实验研究. 天然气与石油. 2017(01): 94-99+11-12 . 百度学术
11. 陈德飞，孟祥娟，周玉，张慧芳，江春明. 岩石破坏后力学特性及其对天然气开采的影响. 断块油气田. 2016(03): 405-408 . 百度学术
其他类型引用(8)
计量
- 文章访问数: 1884
- HTML全文浏览量: 135
- PDF下载量: 1941
- 被引次数: 19
下载:
