双河油田北块Ⅳ_4厚油层细分开采做法及认识  

PRACTICE AND UNDERSTANDING OF SUBDIVISION PRODUCTION OF Ⅳ_4 THICK OIL LAYER IN THE NORTHERN BLOCK OF SHUANGHE OIL FIELD

作　　者：杨堃[1] 

机构地区：[1]河南石油勘探局

出　　处：《石油勘探与开发》1997年第5期80-82,共3页Petroleum Exploration and Development

摘　　要：通过对典型巨厚非均质油层──双河油田北块Ⅳ_4层的解剖，对该厚油层层内精细的砂体平面和纵向岩电对比，找到了两个稳定夹层，将该停油层进一步细分成3个独立流动单元。在此基础上进行了沉积微旋回、微构造、剩余油分布等精细的油藏研究，并根据剩余油的分布形态提出具体挖潜措施，制定出下一步厚油层的具体细分挖潜措施方案。方案实施后，收到明显的稳油降水效果，不仅创造了可观的经济效益，也给此类厚油层开发提供了方向。只要有稳定夹层存在，封堵工艺技术跟上去，厚油层层内细分挖潜措施是可行的。There are many oil layers in Shuanghe oil field, intralayer heterogeneity is more serious. For this type of reservoir which hasstable interlaces, it is hard enough to take the common comn1ingled injection and production to enhance the water floodingrecovery factor in later period of development. In the paper, IV 4 layer has two stable interlaces and is subdivided into threeindependent flow units by means of dissecting the typical heterogeneous lV 4 thick oil layer m northern block of Shuanghe oilfield and studying the intralayer lateral and vertical litho-log relationship. Then we studies the characters of the reservoir suchas depositional cycle, small structure, distribution of remaining oil, and provides the specific distribution form of remainingoil, the specific comprehensive development programme, and the scheme of subdivision development. The obvious effect ofstabilizing oil production by controlling water-cut is shown. The results show that so long as the thick oil layer has the stableinter1aces and the water bIocking technologies are improved, it is feasible to further tap the oil potential of the thick layer bysubdivision development.

关 键 词：油田 细分开采 厚油层 非均质油田开发 

分 类 号：TE343[石油与天然气工程—油气田开发工程]