长庆城壕油田西259区见水原因分析

Changqing oilfield moat of water because the west 259 area see awareness

长庆城壕油田西259区是2008年采油二厂的一个重点产能建设区块,区块储层物性差,微裂缝发育,投产初期暴露出见水早,见水快、部分油井投前水淹、产量递减大、注水不受效、稳产难度大的开发矛盾。本文针对油井见水早、见水快、投前水淹的现状,结合地质及开发动态特征从沉积演化、井网布置、注水方式、采液强度、加砂强度等10个方面分析了油井见水原因,并分析治理对策及效果评价,为后期油田开发提供相应依据。

Changqing oilfield moat 259 west plant area is 2008 oil capacity building a key block,block and poor reservoir properties,micro-fractures,exposed during the initial production, see the water early and see the water quickly,part of the cast well before the flood, a large production decline,water is not efficient,stable development of difficult conflicts. Well see the water early this paper,see the water quickly,before the flood status of investment, combined with the dynamic characteristics of geological and sedimentary evolution of the development,well furnished,injection mode,fluid strength,abrasive strength are analyzed in 10 oil wells,see water causes and effects of countermeasures and evaluation of field development for the latter to provide the appropriate basis.