成都理工大学学报（自然科学版）2012，Vol.39Issue(3)：231-237,7.
塔里木盆地于奇东地区东河塘组砂岩成岩作用及其对储层的影响
Diagenesis of the sandstone of Devonian Donghetang Formation in Yuqidong area, Tarim Basin,China and its influence on the reservoirs
王元君 1田蒙 1王峻1
作者信息
- 1. 油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059
- 折叠
摘要
Abstract
Through scanning the thin sections and casting thin sections by electron microscope and other methods. The paper researches the influencing factors of sandstone diagenesis. Diagenesis evolution and reservoir development in Devonian System Donghetang Formation of the Yuqidong areas and adjacent areas in Tarim Basin. It is clear and definite that this set of reservoirs in the buried process mainly experienced compaction, cementation, dissolution, metasomatism and authigenic minerals formation process. These reservoirs have reached the B phase of early diagenesis at present. The main factor of destructing the primary pores in early diagenesis is compaction. Cementation includes carbonate cementation, quartz overgrowth, pyrite and cementation of clay minerals. The contribution of the carbonate cementation to the reservoir physical properties is greater than its destruction. The damage of oil reservoirs is attributed to quartz overgrowth, ferruginous cementation and cementation of clay minerals. The important factor of improving the reservoir physical properties is the dissolution of unstable components caused by the carbonated hydrothermal and the organic acid released by humus on B phase of early diagenesis.关键词
于奇东地区/东河砂岩/成岩作用/储层形成机制Key words
Yuqidong area/ Donghetang Formation) diagenesis/ formation mechanism/ reservoir分类
能源科技引用本文复制引用
王元君,田蒙,王峻..塔里木盆地于奇东地区东河塘组砂岩成岩作用及其对储层的影响[J].成都理工大学学报（自然科学版）,2012,39(3):231-237,7.
