Gas and Water Pay Recognition of Water-Producing Reservoir with Low Permeability and Resistivity: A Case from the Xujiahe Formation in Guang’an Gasfield of
- 责任者：Lan Chaoli (MOE Key Laboratory of Petroleum Engineering ; College of Petroleum Engineering ; China University of Petroleum ; Beijing 102249 ; China) ; Zhang Junfeng
- 刊名：Earth Science
- 出版年：2010
- 卷期：35(6)
- 关键词：低阻油气藏 ; low resistivity reservoir ; 低渗透储集层 ; low permeability reservoirs ; 油田水 ; oil field water ; 四川 ; Sichuan Province
- 页码：p.1053-1059
- 图表：4 illus., 14 refs.
- 分类号：1003
- issnNo：ISSN1000-2383
- isbnNo：CN42-1233/P
Based on the core calibration of logging data, relationships among lithology, logging characterization, petrophysical property and gas-bearing capacity of the target zones were explored. It can be concluded that the reservoirs are made up of fine, medium-and coarse-grained sandstones with characteristics of low values of gamma ray, density and resistivity and high values of sonic, while the porosity and permeability show no correlation with gas-bearing capacity. The porosity and permeability model were established by considering the sixth and fourth members of Xujiahe Formation separately and subdividing the study area into four blocks, which improves precision of the porosity and permeability interpretation.