套尔河洼陷CH66区块沙三下亚段砂砾岩体油气藏认识  

The recognition on oil-gas reservoir of glutinite body of Sha 3 sub-interval of CH 66 Block in Taorhe Shallow Depression

作　　者：王如良[1] 孙杰[1] 李家贵[1] 

机构地区：[1]胜利油田地质录井公司

出　　处：《录井工程》2007年第2期62-68,共7页Mud Logging Engineering

摘　　要：济阳坳陷车镇凹陷套尔河洼陷CH66区块在沙三下亚段砂砾岩体首获高产油气流,使砂砾岩体油气藏成为勘探热点。为寻找此类型油气藏提供借鉴经验。从进一步探明该砂砾岩体特征与油气分布情况角度出发,综合利用大量地质及地球物理资料,识别出该段地层为滑塌浊流相沉积,具湖底扇沉积特征;从地层构造层序、储集层特征、砂砾岩体分布、油气藏控制因素及油气藏类型等方面研究了CH66区块砂砾岩体含油性。砂砾岩体储集层储集空间主要为孔隙,次为裂缝。微孔隙、微裂缝等多种储集空间发育是沙三下亚段砂砾岩体储集层获高产的关键,油气分布受储集层物性及高压“流体封存箱”空间展布的控制,建议布深井,加强洼陷带沙三下亚段类似砂体的勘探。The glutinite body of Sha 3 sub-interval of CH 66 Block of Taorhe Shallow Depression of Chezhen Sag in Jiyang Depression obtained high productive oil-gas stream for the first time, which has made the oil-gas reservoir of carbonate glutinite body be the exploration focal point and provided reference experiences for discovering such oil-gas reservoirs. Starting from the aspect of further probing the features and distributing condition of glutinite body, by using a large amount of geologic and geophysical information, the formation of the interval was recognized as the slump turbidity current facies deposit with sublacustrine fan deposit feature. The paper studied the oil-bearing properties of carbonate glutinite body of CH 66 Block from the aspects of structure sequences, reservoir features, the distribution of glutinite body, oil-gas controlling factors, types of oil-gas reservoirs and etc. The storage spaces for the reservoirs of glutinite body are dominated by pores, then by fractures. Many kinds of well-developed storage spaces, such as micro pores and fractures, are the important keys for obtaining high production in the glutinite body reservoir in Sha 3 sub-interval. The oil-gas distribution is controlled by the physical properties of the reservoir and the space arrangement of “fluid mothballing box” with high voltage. Therefore, it is suggested to enhance the exploration of the similar sandbody of Sha 3 sub-interval in the shallow depression belts.

关 键 词：套尔河洼陷 碳酸盐岩 砂砾岩体 沉积相 储集层 油气藏 控制因素 

分 类 号：TE319[石油与天然气工程—油气田开发工程]