从工程技术角度浅析页岩气的开采

doi:10.7623/syxb201306026

石油学报 ›› 2013, Vol. 34 ›› Issue (6): 1218-1224.DOI: 10.7623/syxb201306026

• 来稿选登 • 上一篇

从工程技术角度浅析页岩气的开采

李文阳^1,2, 邹洪岚³, 吴纯忠¹, 王永辉³

1. 中国石油勘探开发研究院北京 100083;
2. 中国石油海外勘探开发公司北京 100034;
3. 中国石油勘探开发研究院廊坊分院河北廊坊 065007

收稿日期:2013-05-27 修回日期:2013-08-22 出版日期:2013-11-25 发布日期:2013-10-13
通讯作者: 李文阳
作者简介:李文阳，男，1944年9月生，1968年毕业于北京石油学院，现为中国石油勘探开发研究院教授、专家及中国石油海外勘探开发公司高级顾问，主要从事采油工程和增产措施研究。Email：liwenyang@cnpcint.com
基金资助:
国家重大科技专项“页岩气勘探开发关键技术”（2012ZX05018-004）资助。

An analysis of shale gas development in view of engineering technologies

LI Wenyang^1,2, ZOU Honglan³, WU Chunzhong¹, WANG Yonghui³

1. PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China;
2. PetroChina International Exploration & Development Company, Beijing 100034, China;
3. Langfang Branch, PetroChina Research Institute of Petroleum Exploration & Development, Langfang 065007, China

Received:2013-05-27 Revised:2013-08-22 Online:2013-11-25 Published:2013-10-13

摘要/Abstract

摘要：

从工程技术角度提出了页岩气有效开采的工程关键主要在于深入理解压裂机理、储层可压性评价、低成本实现大的压裂裂缝体积和“工厂化”作业实施等。剖析了页岩气的压裂改造机理，提出了低、中、高渗透储层和致密储层的压裂改造分类新方法及其主要实现策略。提出储层可压性是页岩气“甜点”选择过程中的重要因素之一，主要内容是评价裂缝和层理、页岩脆性、水平应力差。实现低成本、但产生足够大而有效的压裂裂缝体积是页岩气有效产出的关键，提出了低成本裂缝优化设计的基本思路。阐述了“工厂化”作业的主要做法，从地质条件、工程技术现状、地面和水资源方面分析了中国“工厂化”作业施工与北美地区的主要差距，提出了实施要点。

关键词: 页岩气, 水力压裂, 缝网压裂, 工厂化作业, 可压性

Abstract:

Shale gas reservoirs have some unique characteristics different from conventional gas reservoirs. It is very important to understand engineering technological implications of shale gas reservoirs in efficient exploration and development. From the point of engineering technologies, the implications include the fracturing mechanism, the fracability evaluation of shale formations, a big stimulated reservoir volume at low cost and the "fracfactory" application. Herein we analyzed hydraulic fracturing mechanisms and presented an extended classification and realization strategy for various shale formations with high-medium permeability, low permeability and ultra-low permeability. The fracability of shale formations was proposed as one of important factors during the selection of the shale gas "sweet spot" and main contents of its evaluation included natural fractures and bedding, shale brittleness and horizontal stress difference. A key guiding principle was presented for the realization of an adequately big and efficient stimulation reservoir volume (ESRV) at low cost and a main operation method of "fracfactory" was described as well. Finally we presented some concrete operation points and suggestions for the fracfactory of shale gas in China in view of big differences existing between China and the North America in geological conditions, engineering technologies, ground situations and water sources.

Key words: shale gas, hydraulic fracturing, fracture network, fracfactory, fracability

中图分类号:

TE357.1

李文阳, 邹洪岚, 吴纯忠, 王永辉. 从工程技术角度浅析页岩气的开采[J]. 石油学报, 2013, 34(6): 1218-1224.

LI Wenyang, ZOU Honglan, WU Chunzhong, WANG Yonghui. An analysis of shale gas development in view of engineering technologies[J]. ACTA PETROLEI SINICA, 2013, 34(6): 1218-1224.

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从工程技术角度浅析页岩气的开采

An analysis of shale gas development in view of engineering technologies

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