石油物探2017，Vol.56Issue(4)：472-482,11.DOI:10.3969/j.issn.1000-1441.2017.04.002
非均质碳酸盐岩储层微观孔隙结构表征与气藏检测——以阿姆河右岸灰岩气藏为例
Microscopic pore structure characterization of heterogeneous carbonate reservoirs and gas detection:a case study from limestone gas reservoirs on the right bank block of Amu Darya River
摘要
Abstract
The carbonate reservoir is characterized by complex evolution process,various pore structure and strong heterogeneity.Among these features,pore structure is an important factor affecting the heterogeneity of carbonate.It focused on a Jurassie Callovian-Oxfordian limestone gas reservoirs on the right bank block of Amu Darya River.Based on the study of pore structure,a number of techniques were used to characterize the micro pore structure of heterogeneous carbonate reservoirs,and the accurate prediction of gas reservoir was carried out.Rock composition and plane porosity was studied by rock thin section analysis,which proved that two types of pore structure,dissolution pore and structural fracture mainly developed in carbonate reservoir of this area.Rock internal stereo images including pore distributions and fluid filling states were obtained by CT scanning,which confirmed that a "gas-in-water" distribution exists in rocks with patchy saturation.It provided a basis for the rock physics modeling.The physics information such as velocity,density and porosity was got by core physics experiment.The P-wave impedance and vP/vS were chosen to be the sensitive parameters of fluid detection by multi-parameter crossplot analysis in this area.The rock physics template was built to predict reservoir porosity and gas saturation based on the equivalent medium theory.The predicted results matched with log data and gas testing data.关键词
碳酸盐岩/孔隙结构/薄片鉴定/CT扫描/岩心实验测量/岩石物理反演Key words
carbonate rock/pore structure/rock thin section analysis/CT scanning/core experiment/rock physics inversion分类
天文与地球科学引用本文复制引用
于豪,李劲松,晏信飞,徐光成,金旭,徐斌..非均质碳酸盐岩储层微观孔隙结构表征与气藏检测——以阿姆河右岸灰岩气藏为例[J].石油物探,2017,56(4):472-482,11.基金项目
国家科技重大专项(2016ZX05004003)、中国石油科技创新基金项目(2014D-5006-0104)联合资助.This research is financially supported by the National Science and Technology Major Project of China (Grant No.2016ZX05004003) and PetroChina Innovation Foundation Project(Grant No.2014D-5006-0104). （2016ZX05004003）
