摘要
页岩气储层的基质渗透率非常低,并且存在次生矿物填充的簇状"天然"裂缝。页岩气藏储量包括基质吸附的天然气量和裂缝、孔隙中储存的自由气量。美国的页岩气作为一个全球规模的能源安全源和长期供气源,其水平井钻井技术和低黏度水力压裂技术开启了原来被认为是没有商业价值的页岩气这个巨大的储备资源宝库。为此,从ALL咨询公司整理的报告以及SPE网站公布的论文入手,对比并评估了煤层气、常规天然气和页岩气储层的关键参数,阐述了美国页岩气的最新勘探开发状况,对主要页岩气藏的重要参数进行了归纳分析,重点对推动页岩气开发的水平井钻井技术和水力压裂技术进行了剖析,以期达到对我国的页岩气勘探开发提供借鉴的目的。
The matrix of shale reservoirs is featured by extremely low permeability and there are clustered natural fractures filled with secondary minerals. Shale gas reserves consist of absorbed gas in matrix and free gas in fractures and pores. In the USA, Shale gas is a gas source for global energy supply security in the long term. Attributing to its advanced horizontal well drilling and low-viscosity hydraulic fracturing technologies, shale gas of no commercial value before has been turned into an alternative energy source with a great potential. Therefore, based on the reports of the ALL Consultancy Company and technical papers published on the SPE website, this paper not only compares and evaluates the key parameters of coalbed methane gas, conventional natural gas and shale gas reservoirs, but also introduces the present status of U. S. shale gas exploration and development. Moreover, in addition to a summary of important parameters of the major U. S. shale gas reservoirs, this paper focuses on the investigation into the technologies of horizontal well drilling and hydraulic fracturing treatment, thereby to provide reference for exploration and development of shale gas in China.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2011年第8期124-126,142,共3页
Natural Gas Industry
关键词
美国
页岩气
勘探
开发
水平井
多级水力压裂
启示
America, shale gas, exploration, development, horizontal well, multi-stage hydraulic fracturing, enlightenment
作者简介
作者简介：李欣，女，1969年生，美国路易斯安娜州立大学石油工程博士；现在从事石油天然气咨询工作。电话：（001）8324772720。E—mail：xli@knowlegereservoir．com
