井楼油田八区优势通道判别研究

Research on discriminating dominant channels in district-8 of Jinglou oilfield

探讨井楼油田八区经过长期注水开发后优势通道的形成判别。油藏经长期注水开发可能会形成许多高渗流通道,这会导致注入水形成无效循环,严重影响油藏的注水开发效果。通过结合油田的实际生产资料和成熟理论,建立了优势通道的研究模型,结果表明:井楼八区南部大部分区域形成了优势通道,而北部则有小部分区域,且与储层的物性资料相匹配,可为油田的进一步开发调整提供依据。

This paper discussed how to discriminate the formation of dominant channel after long-term waterflood development in districts-8 of Jinglou oilfield. Many high transmissibility channels formed from the long-term waterflood development may cause the invalid cycle of injected water so as to affect the waterflood development effects of reservoirs. Combined with the actual production data of the oilfields and mature theory, this paper established a study model of the dominant channels. The results showed that most southern parts of district-8 in Jinglou oilfield formed the dominant channels, while in the northern there is a small part of the area. The dominant channels matched the reservoir properties data, which provide the basis for further development and adjustment of the field.