四川盆地外缘常压页岩气水平井低成本钻井技术探讨

陈安明; 龙志平; 周玉仓; 王彦祺; 彭兴; 曹华庆

doi:10.11911/syztjs.2018127

四川盆地外缘常压页岩气水平井低成本钻井技术探讨

doi: 10.11911/syztjs.2018127

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

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。

详细信息

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。

龙志平：E-mail:chenam.oshd@sinopec.com。

中图分类号: TE243⁺.1
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出版历程
- 收稿日期: 2018-03-12
- 修回日期: 2018-07-08

Discussion on Low-Cost Drilling Technologies of Normal Pressure Shale Gas in the Outer Margin of the Sichuan Basin

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

摘要

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。
- 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
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.
- shale gas /
- horizontal well /
- casing program /
- wellbore trajectory /
- rotary steering /
- drilling cost /
- Sichuan Basin

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参考文献(20)

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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

doi: 10.11911/syztjs.2018127

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。 龙志平：E-mail:chenam.oshd@sinopec.com。

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出版历程

Discussion on Low-Cost Drilling Technologies of Normal Pressure Shale Gas in the Outer Margin of the Sichuan Basin

计量

出版历程

目录

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。

龙志平：E-mail:chenam.oshd@sinopec.com。