三角形断块油藏剩余油分布规律及综合调整研究——以台兴油田广山区块为例

Remaining oil distribution regular and comprehensive adjustment of triangular fault blocks——A case study in Guangshan block of Taixing oilfield

根据断块油藏的几何形态及断层组合模式,断块油藏的形状可以分为条带状、三角形、四边形、半圆形。台兴油田广山区块是典型的三角形断块油藏,目前已进入中高含水阶段,采油速度低、井网不完善,需要进行研究改善开发效果。通过对广山区块阜三段油藏开展储层精细描述,剩余油分布规律、分布模式及主控因素等研究,定量描述了剩余油的空间分布特征及规律,提出了油藏综合调整方案,为改善此类区块的开发效果提供技术支撑。

According to geometric shape and fault combination, fault blocks can be divided into banded, triangle, quadrangle and semicircle. Guangshan block of Taixing oilfield is a typical triangular fault block, and it has entered high water cut stage. Due to low oil production rate and incomplete well pattern, development effects should be researched and implemented. Through fine description of Fu-3 member in Guangshan block and research on remaining oil distribution regular, distribution pattern and main controlling factors, this paper quantitatively described spatial distribution characteristics and regulars of remaining oil, and proposed reservoir comprehensive adjustment plan, thereby providing technique supports for development effects of similar blocks.