Simulation Experiment of Water-Rock Interaction in Silurian Mudstone Cap Formation and Its Significance in Southeast Sichuan Basin
详细信息
- 责任者：Zhang Juntao (Exploration & Production Research Institute ; SINOPEC ; Beijing 100083 ; China) ; Wu Shixiang
- 刊名：Petroleum Geology & Experiment
- 出版年：2011
- 卷期：33(1)
- 关键词：盖层 ; cap rocks ; 水岩作用 ; water-rock interaction ; 四川 ; Sichuan Province
- 页码：p.96-99,104
- 图表：3 illus., 1 table, 21 refs.
- 分类号：1003
- issnNo：ISSN1001-6112
- isbnNo：CN32-1151/TE
摘要
The influence of water-rock interaction of cap rock on reservoir formation and hydrocarbon preservation under different environments was analyzed with simulation experiment of water-rock interaction. The mudstone cap rock samples from the Silurian Longmaxi Formation in the southeast Sichuan Basin were selected to react with freshwater and acetic fluid under different temperature and pressure conditions of 30 ℃, 1 MPa; 80 ℃, 20 MPa and 160 ℃, 40 MPa, respectively. In the study area, when hydrothermal fluid moved, more fluid was occluded in carbonate and reacted with rock because of low permeability and solubility of the Silurian mudstone.