油气藏评价与开发 >
2021 , Vol. 11 >Issue 2: 230 - 234
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2021.02.013
深层页岩气井压后井筒堵塞解除技术——以WY23-1HF井为例
收稿日期: 2020-11-05
网络出版日期: 2021-04-30
基金资助
中国石化科技部项目“深层页岩气高效钻完井技术”(P18058-2)
Plugging removal technology of wellbore after fracturing in deep shale gas wells: A case study of Well-WY23-1HF
Received date: 2020-11-05
Online published: 2021-04-30
深层页岩气井大规模体积压裂后,面临井筒堵塞影响长期生产的问题,需借助连油或钻杆进行解堵处理,处理方式较为单一,对于复杂变径井筒、混合堵塞物问题的处理缺乏针对性。以WY23-1HF井为例,该井受邻井压裂影响无法正常生产,地层垮塌,岩屑进入井筒造成了严重堵塞,同时,堵塞段存在轨迹上翘、套管变形等复杂情况。解堵复产措施包括:钻磨管柱、钻磨工序、压井液设计等方面。现场实施情况表明,针对水平井多段压裂,应尽量采用同一类型桥塞减少变径影响,确保轨迹平滑和防止堵塞物堆积,避免井筒条件复杂化,同时,结合该井可溶桥塞与大通径非易钻桥塞混合使用的情况,采用连油带笔尖冲洗+钻杆带钻头(或磨鞋)的管柱组合,进行通磨钻扫相结合成功实现复产,为类似的页岩气井提供借鉴。
王孝刚 , 史雪枝 , 朱敏 . 深层页岩气井压后井筒堵塞解除技术——以WY23-1HF井为例[J]. 油气藏评价与开发, 2021 , 11(2) : 230 -234 . DOI: 10.13809/j.cnki.cn32-1825/te.2021.02.013
After large-scale volume fracturing of deep shale gas wells, there comes the difficulty of wellbore plugging, which affects long-term production. The common methods to remove the wellbore plugging by coiled tubing and drill pipe are simple. It lacks of the pertinence measures to treat the diameter shaft and the mixed stemming. For example, Well-WY23-1HF can not produce normally due to the fracturing of adjacent well. The formation collapses and the cuttings enter the wellbore, causing serious plugging. The trajectory of its plugging section is of the complex situation of warped, casing deformation and so on. The measures of plugging removal and resuming production are drill-grinding string, drill-grinding process, well killing fluid design, etc. The field application shows that the same type of bridge plug should be used to reduce the impact of tapering, ensure the smooth trajectory, prevent the accumulation of plugging material, and avoid the complication of wellbore conditions for multi-stage fracturing of horizontal wells. At the same time, combined with the comprehensive application of soluble bridge plug and large diameter non-easy-to-drill bridge plug, the combination of pipe string with oil flushing with nibs+drill pipe with bit (or milling shoe) is adopted to remove plug, and the recovery of production is successfully achieved. This technology provides a reference for similar shale gas wells.
[1] | LV Z G, WANG L, DENG S F, et al. China shale gas exploration: early Sichuan Basin Longmaxi Shale Gas stimulation and completion case study[C]// paper SPE-166746-MS presented at the SPE Middle East Drilling Technology Conference & Exhibition, 7-9 October, 2013, Dubai, UAE. |
[2] | LIAN Z H, YU H, LIN T J, et al. A study on casing deformation failure during multi-stage hydraulic fracturing for the stimulated reservoir volume of horizontal shale wells[J]. Journal of Natural Gas Science and Engineering, 2015,23:538-546. |
[3] | 田中兰, 石林, 乔磊. 页岩气水平井井筒完整性问题及对策[J]. 天然气工业, 2015,35(9):70-76. |
[3] | TIAN Zhonglan, SHI Lin, QIAO Lei. Research of and countermeasure for wellbore integrity of shale gas horizontal well[J]. Natural Gas Industry, 2015,35(9):70-76. |
[4] | 于浩, 练章华, 徐晓玲, 等. 页岩气直井体积压裂过程套管失效的数值模拟[J]. 石油机械, 2015,43(3):73-77. |
[4] | YU Hao, LIAN Zhanghua, XU Xiaoling, et al. Numerical simulation for casing failure during volumetric fracturing of shale gas vertical wells[J]. China Petroleum Machinery, 2015,43(3):73-77. |
[5] | 田中兰, 石林, 乔磊. 页岩气水平井井筒完整性问题及对策[J]. 天然气工业, 2015,35(9):70-76. |
[5] | TIAN Zhonglan, SHI Lin, QIAO Lei. Research of and Countermeasure for Wellbore Integrity of Shale Gas Horizontal Well[J]. Natural Gas Industry, 2015,35(9):70-76. |
[6] | SUGDEN C, JOHNSON J, CHAMBER M, et al. Special consideration in the design optimization of the production casing in high-rate, multistage-fractured shale wells[J]. SPE Drilling & Copmletion, 2012,27(4):459-472. |
[7] | DIEGO B, SHAHRI M P, WAGNER R, et al. Impact of cyclic pressure loading on well integrity in multi-stage hydraulic fracturing[C]// paper URTEC-2902463-MS presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, 23-25 July 2018, Houston, Texas, USA. |
[8] | ADAMS N J, MITCHELL R F, EUSTES A W, et al. A causation investigation for observed casing failures occurring during fracturing operations[C]// paper SPE-184868-MS presented at the SPE Hydraulic Fracturing Technology Conference and Exhibition, 24-26 January 2017, The Woodlands, Texas, USA. |
[9] | 杨毅, 刘俊辰, 曾波, 等. 页岩气井套变段体积压裂技术应用及优选[J]. 石油机械, 2017,45(12):82-87. |
[9] | YANG Yi, LIU Junchen, ZENG Bo, et al. Application and optimization of SRV fracturing technology for casing deformation section of shale gas well[J]. China Petroleum Machinery, 2017,45(12):82-87. |
[10] | 廖仕孟, 桑宇, 宋毅, 等. 页岩气水平井套管变形影响段分段压裂工艺研究及现场试验[J]. 天然气工业, 2017,37(7):40-45. |
[10] | LIAO Shimeng, SANG Yu, SONG Yi, et al. Research and field tests of staged fracturing technology for casing deformation section in horizontal shale gas wells[J]. Nature Gas Industry, 2017,37(7):40-45. |
[11] | 郑瑞, 杜建平, 李兆丰, 等. 页岩气水平井修井工艺技术应用[J]. 化工管理, 2019,25(9):207-208. |
[11] | ZHENG Rui, DU Jianping, LI Zhaofeng, et al. Application of workover technology for Shale gas horizontal well[J]. Chemical Industry Management, 2019,25(9):207-208. |
[12] | 马骏骥. 连续油管作业在页岩气开发中的应用分析[J]. 化学工程与装备, 2018,13(1):97-98. |
[12] | MA Junji. Application analysis of coiled tubing operation in shale gas development[J]. Chemical Engineering & Equipment, 2018,13(1):97-98. |
[13] | 袁涛. 浅议页岩气井油管内连续油管冲砂技术[J]. 江汉石油职工大学学报, 2016,29(4):54-56. |
[13] | YUAN Tao. On coiled tubing sand washing technology used in shale gas wells[J]. Journal of Jianghan Petroleum University of Staff and Workers, 2016,29(4):54-56. |
[14] | 魏佳, 辛勇亮. 页岩气压裂施工砂堵原因与策略研究[J]. 中国石油石化, 2017,20(9):95-96. |
[14] | WEI Jia, XIN Yongliang. Study on sand plugging causes and strategies in shale gas fracturing construction[J]. China Petrochem, 2017,20(9):95-96. |
[15] | 胡尊敬. 页岩气井带压作业中冰堵的产生及解决措施[J]. 石化技术, 2017,24(2):71. |
[15] | HU Zunjing. Causes and solutions of ice blockage in snubbing operation of shale gas well[J]. Petrochemical Industry Technology, 2017,24(2):71. |
[16] | 张华礼, 杨盛, 刘东明, 等. 页岩气水平井井筒清洁技术的难点及对策[J]. 天然气工业, 2019,39(8):82-87. |
[16] | ZHANG Huali, YANG Sheng, LIU Dongming, et al. Wellbore cleaning technologies for shale-gas horizontal wells: Difficulties and countermeasures[J]. Natural Gas Industry, 2019,39(8):82-87 |
[17] | 杨小城, 李俊, 邹刚. 可溶桥塞试验研究及现场应用[J]. 石油机械, 2018,46(7):94-97. |
[17] | YANG Xiaocheng, LI Jun, ZOU Gang. Dissolvable bridge plug test and field application[J]. China Petroleum Machinery, 2018,46(7):94-97. |
[18] | 王林, 王恩顺, 张建华, 等. 可降解桥塞研制及其承压性能试验[J]. 石油机械, 2017,45(2):64-67. |
[18] | WANG Lin, WANG Enshun, ZHANG Jianhua, et al. Development and pressure bearing performance experiment of the degradable bridge plug[J]. China Petroleum Machinery, 2017,45(2):64-67. |
[19] | 陈海力, 邓素芬, 王琳, 等. 免钻磨大通径桥塞技术在页岩气水平井分段改造中的应用[J]. 钻采工艺, 2016,39(2):123-125. |
[19] | CHEN Haili, DENG Sufen, WANG Lin, et al. Application of non drill-grinding large diameter bridge plug technology in segmentation of shale gas horizontal wells[J]. Drilling & Production Technology, 2016,39(2):123-125. |
[20] | 胡英才, 杨康敏, 李家明, 等. 快钻电缆桥塞的研制与应用[J]. 石油机械, 2017,45(3):90-93. |
[20] | HU Yingcai, YANG Kangmin, LI Jiaming, et al. Development and application of fast drill cable bridge plug[J]. China Petroleum Machinery, 2017,45(3):90-93. |
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