Evaluation and Prediction of Shale Gas Sweet Spots: A Case Study in Jurassic of Jiannan Area , Sichuan
详细信息
- 责任者：Zhou Dehua (Department of Oil and Gas Exploration and Development ; SINOPEC ; Beijing 100728 ; China) ; Jiao Fangzheng
- 刊名：Petroleum Geology & Experiment
- 出版年：2012
- 卷期：34(2)
- 关键词：页岩气 ; shale gas ; 四川盆地 ; Sichuan Basin
- 页码：p.109-114
- 图表：5 illus., 4 tables, 20 refs.
- 分类号：1003
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
The evaluation system, critical steps and key parameters for shale gas sweet spots were discussed in this paper. A case study was carried out in Jurassic of Jiannan area of the Sichuan Basin. It was concluded as followed: 1) different from conventional petroleum evaluation, the evaluation and exploration of unconventional shale gas demanded an unconventional approach; 2) the success of long-distance horizontal fracturing in well Jianye HF-1 proved good potential for shale gas exploration in Jurassic of Jiannan area; and 3) the maps of shale thickness, ω (TOC), Ro and burial depth might guide shale gas sweet spots exploration.