西安科技大学学报2012，Vol.32Issue(2)：228-233,6.
鄂尔多斯盆地安塞油田塞202井区长61储层成岩作用
Diagenetic characteristics of the Chang 61 reservoir of sai 202 well area in Ansai oilfield of Ordos Basin
摘要
Abstract
Sai202 well area is main production area of Ansai oil field. Chang 61Sandstons,which is constituted of low composition maturity feldspathic sandstone, is main producing formation. The merits of reservoir properties is the main factor affecting productivity, while reservoir properties is closely related to diagenesis. Based on the analysis techniques such as thin-slice, cast-slice observation, SEM and cathodeluminescence, the diagenetic characteristics and its influence on the Chang 61 reservoir of Sai 202 well area in Ansai oilfield have been studied. The Chang 61 reservoir diagenesis is in the middle diagenetic stage B. The reservoirs underwent mechanical impaction, cementation, dissolution, metasomato-sis and fracturing. Dissolution including dissolution of feldspar, calcite and laumontite are the main factors making reservoir physical property better, and the development of microfractures also improved reservoir physical property. Dissolution development zone is the oil-rich zone. In search of dissolution development zone in oil and gas exploration is a major geological problem to be solved.关键词
成岩作用/储层物性/长61油层段/安塞油田/鄂尔多斯盆地Key words
diagenetic/ reservoir properties/ Chang 61/ Ansai oilfield/ Ordos Basin分类
能源科技引用本文复制引用
梁积伟,王若谷,刘振军,刘昊伟..鄂尔多斯盆地安塞油田塞202井区长61储层成岩作用[J].西安科技大学学报,2012,32(2):228-233,6.基金项目
国家重点基础研究发展计划(973计划)项目(2003B214602) （973计划）
国家科技重大专项(2008ZX05005-004-09HZ) （2008ZX05005-004-09HZ）
西北大学大陆动力学国家重点实验室开放基金项目(07LCB11) （07LCB11）
