[1]陈安明,龙志平,周玉仓,等.四川盆地外缘常压页岩气水平井低成本钻井技术探讨[J].石油钻探技术,2018,46(06):9-14.[doi:10.11911/syztjs.2018127]
 CHEN Anming,LONG Zhiping,ZHOU Yucang,et al.Discussion on Low-Cost Drilling Technologies of Normal Pressure Shale Gas in the Outer Margin of the Sichuan Basin[J].Petroleum Drilling Techniques,2018,46(06):9-14.[doi:10.11911/syztjs.2018127]
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四川盆地外缘常压页岩气水平井低成本钻井技术探讨(/HTML)
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《石油钻探技术》[ISSN:1001-0890/CN:11-1763/TE]

卷:
46卷
期数:
2018年06期
页码:
9-14
栏目:
钻井完井
出版日期:
2018-11-25

文章信息/Info

Title:
Discussion on Low-Cost Drilling Technologies of Normal Pressure Shale Gas in the Outer Margin of the Sichuan Basin
作者:
陈安明1 龙志平2 周玉仓2 王彦祺2 彭兴2 曹华庆3
1. 中石化华东石油工程有限公司安全环保处, 江苏南京 210019;
2. 中国石化华东油气分公司石油工程技术研究院, 江苏南京 210031;
3. 中石化华东石油工程有限公司六普钻井公司, 江苏镇江 212003
Author(s):
CHEN Anming1 LONG Zhiping2 ZHOU Yucang2 WANG Yanqi2 PENG Xing2 CAO Huaqing3
1. Security and Environmental Protection Department, Sinopec Huadong Oilfield Service Corporation, Nanjing, Jiangsu, 210019, China;
2. Petroleum Engineering Technology Research Institute, Sinopec East China Oil & Gas Company, Nanjing, Jiangsu, 210031, China;
3. Liupu Drilling Company, Sinopec Huadong Oilfield Service Corporation, Zhenjiang, Jiangsu, 212003, China
关键词:
页岩气水平井井身结构井眼轨迹旋转导向钻井成本四川盆地
Keywords:
shale gashorizontal wellcasing programwellbore trajectoryrotary steeringdrilling costSichuan Basin
分类号:
TE243+.1
DOI:
10.11911/syztjs.2018127
摘要:
四川盆地外缘页岩气储层压力系数为0.90~1.20,属于常压页岩气储层,采用高压页岩气钻井技术进行开发,开发成本高。在分析常压页岩气与高压页岩气钻井差异的基础上,分别从井身结构、井眼轨道设计、井眼轨迹控制、钻井液和固井工艺等方面探讨了降低钻井成本的技术措施,提出将三开井身结构优化为二开井身结构,采用"双二维"模型设计井眼轨道、利用旋转导向技术控制二开井眼轨迹、使用低油水比油基钻井液和优化生产套管水泥返高等降低钻井成本的配套技术和措施,以期为实现四川盆地外缘常压页岩气的经济有效开发提供技术支撑。
Abstract:
The shale gas reservoirs on the outer margin of the Sichuan Basin have a pressure coefficient of 0.90-1.20,which belongs to the normal pressure shale gas reservoirs and are developed by high-pressure shale gas drilling technology.The cost of per unit gas production is high,which hinders the economic development of shale gas.Therefore,according to the analysis on the differences between the drilling of normal pressure shale gas and high pressure shale gas reservoirs,the low-cost drilling technologies were discussed taking into consideration the casing program,wellbore trajectory design,wellbore trajectory control,drilling fluid and cementing processes.The low-cost drilling technologies and associated measures (i.e.,optimizing the tri-section casing program into the dual-section one,designing the wellbore trajectory with dual-2D model,controlling the second section wellbore trajectory with rotary steering technology,using the low oil-water ratio oil-based drilling fluid,and adopting the low-cost supporting technologies and measures like production casing cement top optimization,etc.) were proposed to provide technical supports for the economic development of normal pressure shale gas reservoirs in the outer margin of the Sichuan Basin.

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备注/Memo

备注/Memo:
收稿日期:2018-03-12;改回日期:2018-07-08。
基金项目:国家科技重大专项"彭水地区常压钻井及高效压裂工程工艺优化技术"(编号:2015ZX05069-002)和中国石化科技攻关项目"彭水区块页岩气水平井高效钻井技术研究"(编号:P13025)联合资助。
作者简介:陈安明(1971-),男,山东沂水人,1994年毕业石油大学(华东)石油工程专业,高级工程师,主要从事钻井工程方面的科研与管理工作。
E-mail:chenam.oshd@sinopec.com。
更新日期/Last Update: 1900-01-01