我国页岩气评价及开发方式初探李陶涛..doc

我国页岩气评价及开发方式初探 李陶涛 傅长阔2 陈霖3 张杰3 （1. 油气藏地质及开发工程国家重点实验室（西南石油大学） 成都 610500； 2. 中国石油西部钻探工程有限公司 乌鲁木齐 830063；3. 中国石油川庆钻探工程有限公司 西安 710018） 摘要：页岩气存储于泥页岩中，具有自生、自储、自保的特性，且每个页岩气藏都其自身勘探开发的特性。随着美国Barnett, Antrim and Lewis等页岩气藏的成功开发，可以预见页岩气将成为今后各国能源利用的重要组成部分。现在Barnett页岩气产量占全美天然气产量的6%。据INGAA（美国天然气协会）研究指出，美国和加拿大目前正积极进行页岩气潜力评估工作，并且不断更新评估结果。掌握其资源的潜力和不断完善对未来天然气产量预测是必不可少的工作。但是往往计算的页岩气地质储量很大，而可采资源量较少，这主要是因为页岩气有20%～80%吸附于页岩基质中，一般难以开采。总之，页岩气丰度低，分布广，自身产能极低，而新型的钻井、完井技术，包括水力压裂技术，让许多以前没有经济潜力的页岩气藏得以开发。 关键词：页岩气；资源评价；开发；吸附；裂缝 Search Evaluation and Exploitation Methods of Shale Gas Resource in China Li Taotao1，Fu Changkuo2，Chen Lin3，Zhang Jie3 （1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu 610500；2. CNPC West Drilling and Exploration Engineering Company , Wulumuqi 830063；3. CNPC Chuanqing Drilling and Exploration Engineering Company, Xian 710018） Abstracte：Shale gas is defined as natural gas from shale formations, with the shale acting as both the source and the reservoir for the natural gas. Each of these shale gas basins is different and each has a unique set of exploration criteria and operational challenges. With the tremendous success of the Barnett, Antrim and Lewis shales in the United States, the gas shale resource base will play a major role in the future natural gas production on which the nation will depend. Already the Barnett Shale in Texas produces 6 percent of all natural gas produced in the United States. The INGAA (Interstate Natural Gas Association of America) study states that the assessment of shale gas potential in the United States and Canada is a work in progress and there is a long way to go to understand remaining potential and implications for future natural gas production. The volumes calculated for gas-in-place are extremely large, but small estimated percentage of shale gas that is recoverable，that because 20%～80% shale gas is absorbed in shale matrix . In general, shale gas deposits are