石油大学学报(自然科学版)2001,Vol.25Issue(1):42-45,50,5.
辽河西部凹陷曙103块潜山油藏储层特征
RESERVOIR CHARACTERISTICS OF BLOCK SHU-103 BURIED HILL IN WEST DEPRESSION OF LIAOHE OILFIELD
吴智勇 1郭建华 1吴东胜 1司继伟2
作者信息
- 1. 江汉石油学院石油地质系,
- 2. 华北石油管理局,
- 折叠
摘要
Abstract
Block Shu-103 buried hill in the west depression of Liaohe oilfield consists of dolomicrite, lime dolostone and dolomite limestone. Its main reservoir space includes solution cavities and pores, fractures, micro-pores and micro-fractures. The solution cavities and pores are common in the block, and divided into mega-, meso-, and small-cavern, as well as solution pore according to size. The mega-and meso-caverns are lack of reservoir capability due to caving and filling, the small-cavern and pores tend to survive and be major reservoir spaces in the block. High-angular fractures are main factor affecting reservoir petrophysics. Their dominant direction is NESW in accordance with regional structural line. The pressure test shows that micro-pores and micro-fractures act as main reservoir space providing hydrocarbon after a period of exploitation instead of macro-pores and fractures.Production status and correlation of pay members between wells show that the reservoir petrophysic properties are controlled by paleogeographic position, structural position and petrologic cycle. Good reservoir members are mainly located at upper parts of the hill.关键词
辽河西部凹陷/潜山油藏/碳酸盐岩油藏/储层特征/储集空间分类
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吴智勇,郭建华,吴东胜,司继伟..辽河西部凹陷曙103块潜山油藏储层特征[J].石油大学学报(自然科学版),2001,25(1):42-45,50,5.