顺北5-8井志留系破裂性地层提高承压能力技术

范胜; 宋碧涛; 陈曾伟; 李大奇; 刘金华; 成增寿

doi:10.3969/j.issn.1001-5620.2019.04.006

顺北5-8井志留系破裂性地层提高承压能力技术

doi: 10.3969/j.issn.1001-5620.2019.04.006

1. 中国石化西北油田分公司, 乌鲁木齐 830011;
2. 中国石化石油工程技术研究院, 北京 100010;
3. 中石化西南石油工程有限公司湖南钻井分公司, 长沙 417000

基金项目:

“十三五”国家科技重大专项“海上油气田关键工程技术”（2016ZX05033-004）

详细信息

作者简介:
范胜,工程师,2013年毕业于中国石油大学(北京),现在主要从事钻井液技术研究。E-mail:459131036@qq.com

中图分类号: TE282
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出版历程
- 收稿日期: 2019-03-20
- 刊出日期: 2019-08-30

Technology for Enhancing Pressure Bearing Capacity of Fractured Silurian System in Well Shunbei 5-8

1. Sinopec Northwest Branch, Urumqi, Xinjiang 830011;
2. Sinopec's Research Institute of Petroleum Engineering Technology, Beijing 100010;
3. Sinopec Southwest Oilfield Service Corporation Hunan Drilling Company, Changsha, Hunan 417000

摘要

摘要: 新疆顺北区块古生界志留系地层由于地质构造运动强烈，断裂带附近缝网发育，且深层存在高压盐水层，钻井液安全密度窗口窄，井漏严重且高发。针对志留系防漏堵漏技术难点，深入分析了志留系破裂性地层漏失特性，通过地质、测井、岩屑等资料分析漏层岩性及孔渗特征，根据实钻数据、测井和水力学等方法分析漏层通道的大小和连通情况，对地层承压能力影响因素进行了细致分析，针对主要裂缝地层开发了抗高温致密承压堵漏配方，并根据不同的漏失类型制定了"随钻封堵、逐步强化、分段承压、稳步推进"的防漏堵漏技术思路，在顺北5-8井进行防漏堵漏作业13次，均获成功，有效提高了地层承压能力，井漏复杂处理时间同比大幅度减少60%。
- 志留系 /
- 堵漏材料 /
- 承压能力 /
- 破裂性地层
Abstract: Lost circulation is a severe downhole trouble frequently encountered in Block Shunbei in Xinjiang because of fractures around the fault zones resulted from strong geological movement in the Paleozoic Silurian System, high pressure formation saltwater and narrow safe drilling windows. In this paper, the characteristics of the mud losses occurred at the fractured Silurian System are extensively analyzed. The sizes and connectivity of the channels in the lost circulation zones are analyzed using actual drilling data, wireline logging data and hydraulic data, and factors affecting the pressure bearing capacity of the formations are carefully analyzed. A high temperature lost circulation material (LCM) slurry for the main fractured formations to make them dense was developed and a lost circulation control procedure, that is, "plugging while drilling, gradually strengthening, enhancing pressure bearing capacity section by section, and drilling steadily ahead", was formulated. This LCM slurry and the procedure were applied in Well Shunbei 5-8 for 13 times, all succeeded, greatly improving the pressure bearing capacity of the fractured formations. Time spent dealing with lost circulation has been reduced by 60%.
- Silurian system /
- Lost circulation material /
- Pressure bearing capacity /
- Fractured formation

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参考文献(11)

[1]	潘军,李大奇.顺北油田二叠系火成岩防漏堵漏技术[J]. 钻井液与完井液, 2018, 20(3):42-47. PAN Jun, LI Daqi. Technology of preventing and controlling mud losses into the permian igneous rocks in Shunbei oilfield[J]. Drilling Fluid & Completion Fluid, 2018, 20(3):42-47.
[2]	李大奇, 曾义金, 刘四海, 等. 裂缝性地层承压堵漏模型建立及应用[J]. 科学技术与工程, 2018, 15(2):79-84. LI Daqi, ZENG Yijin, LIU Sihai, et al. Wellbore strengthening model in fractured formation[J]. Science Technology and Engineering, 2018, 15(2):79-84.
[3]	何新星, 李皋, 段慕白, 等. 地层裂缝动态变形对堵漏效果的影响研究[J]. 石油钻探技术, 2018, 46(4):65-70. HE Xinxing, LI Gao, DUAN Mubai, et al. Study on the influence of formation fracture dynamic deformation on plugging effect[J].Petroleum Drilling Technology, 2018, 46(4):65-70.
[4]	金军斌. 塔里木盆地顺北地区长裸眼钻井液技术[J]. 探矿工程(岩土钻掘工程), 2017, 11(4):5-9. JIN Junbin. Long open hole drilling fluid technology in Shunbei Area of Tarim Basin[J]. Prospecting Engineering (Geotechnical Drilling Engineering), 2017, 11(4):5-9.
[5]	张国强,辛泽宇. 顺北3井堵漏工艺技术研究与应用[J]. 西部探矿工程, 2017, 12(8):89-92. ZHANG Guoqiang, XIN Zeyu.Research and application of plugging technology in Shunbei 3 wells[J].Western Prospecting Engineering, 2017, 12(8):89-92.
[6]	樊相生, 龙大清, 罗人文. 化学固结承压堵漏技术在明1井的应用[J]. 钻井液与完井液, 2016, 33(5):67-71. FAN Xiangsheng, LONG Daqing, LUO Renwen. Application of chemically consolidated pressure-pressure blocking technology in Ming 11 Well[J]. Drilling Fluid & Completion Fluid, 2016, 33(5):67-71.
[7]	李大奇, 高伟, 杜欢, 等. 顺北1-2H井二开长裸眼井筒强化技术[J]. 西部探矿工程, 2017, 29(5):31-33. LI Daqi, GAO Wei, DU Huan, et al. Strengthened technology of second open hole in Shunbei 1-2H well[J]. Western Prospecting Project, 2017, 29(5):31-33.
[8]	陈曾伟, 刘四海, 林永学, 等. 塔河油田顺西2井二叠系火成岩裂缝性地层堵漏技术[J]. 钻井液与完井液, 2013, 30(6):40-43. CHEN Zengwei, LIU Sihai, LIN Yongxue, et al. Tahe Oilfield Shunxi 2 well permian igneous fractured formation leakage plugging technology[J]. Drilling Fluid & Completion Fluid, 2013, 30(6):40-43.
[9]	ERIC DAVIDSON, LEE RICHARDSON, SIMON ZOLLER. Control of lost circulation in fractured limestone reservoirs[R].SPE 62734.
[10]	WAYNE SANDERS W, WILLIAMSON R N, IVAN C D. Lost Circulation assessment and planning program:evolving strategy to control severe losses in deepwater projects[R].SPE 79836.
[11]	张平. 顺北蓬1井444.5 mm长裸眼井筒强化钻井液技术[J]. 石油钻探技术, 2018, 46(3):27-33. ZHANG Ping. Wellbore enhancing technology for 444.5 mm openhole section in Well SHBP1 by means of drilling fluid optimization[J].Petroleum Drilling Techniques, 2018, 46(3):27-33.