3D Modeling of Paleokarst Reservoir in Tahe Oilfield
详细信息
- 责任者：Liu Yuming (College of Geosciences ; China University of Petroleum ; Beijing 102249 ; China) ; Hou Jiagen
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(2)
- 关键词：岩溶 ; karst ; 储集层 ; reservoirs ; 塔里木盆地 ; Tarim Basin
- 页码：p.34-38, 44
- 图表：2 illus., 1 table, 27 refs.
- 分类号：1003
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
According to the applicability analysis of paleokarst reservoir modeling method,a method of vertical division of karst zones,planar partition of palaeogeomorphology,fracture as priority was formed.The primary steps of the method were demonstrated via the case of 3D modeling of Ordovician reservoir in TK4 block of Tahe oilfield.The results show that in the vertical direction,the Ordovician reservoir in TK4 block of Tahe oilfield is divided into superficial karst zone,vertical seepage dissolution zone,runoff dissolution zone and subsurface flow dissolution zone;while in the planar direction,3 types of palaeogeomorphology units were distinguished,which were karst highland,karst slope and karst depression.The paleokarst reservoir has a good probability correlation with seismic coherence,and the 3D model built through the new method is well consistent with the oilfield production.