论文部分内容阅读
在油田注水开发中,由于地层的非均质性和注水质量问题,往往导致一部分油层未水驱或水驱不见效。某油田第三系主力油田这方面的潜力就高达69.3%。油田注水开发的质量“症结”主要是:注水井点不完善,油层对应率差;纵向单层突进,造成高低渗透层受效状况的差异;平面指进和舌进,造成大面积死油区;注入水质差,造成油层堵塞。要从根本上改善油田注水开发效果,必须按照“把好入口,分而治之,调整剖面,齐头并进”的对策,搞好油田注水开发深层次的质量监控,才能收到事半功倍的效果。
In the field of oilfield waterflooding, due to formation heterogeneity and waterflooding quality, some of the reservoirs often result in no waterflooding or waterflooding. The potential of Tertiary main oilfield in a certain oilfield is as high as 69.3%. Oilfield water quality development “crux” mainly: imperfect water injection wells, reservoir correspondence rate is poor; longitudinal monolayer sudden penetration, resulting in high and low permeability layer of the difference between the effective conditions; plane refers to into and tongue into, resulting in large area dead Oil zone; injection of poor water quality, resulting in blockage. In order to fundamentally improve the effect of waterflooding development in oilfields, we must follow the measures of “improving entrances, dividing and governing roads, adjusting sections and going hand in hand” to improve the quality control of oilfield waterflooding in order to get a multiplier effect.