摘要
靖安油田大路沟一区经过7年多的注水开发，在大面积见到注水效果的同时，出现了东北部油井高压低产，注不进水，致使全区地层压力保持水平低（63.8%），平面上压力分布不均。本文在沉积微相、储层非均质性、三维地质建模及数值模拟等精细油藏描述研究的基础上，结合地层堵塞机理室内试验研究，探析了大路沟一区长2油藏高压低产因素，并针对性的提出调整措施意见。
Through more than 7 years of waterflooding development of No.1 dalugou district, jing＇an oilfield, response to the waterflood can be seen in big areas. At the same time, high pressure and low production rate take place in wells of northeastern part of the district, and water cannot be injected into reservoirs of the wells. They cause a low maintenance level of formation pressure （63.8%） in the whole district, with the uneven pressure distribution in the plane. Combining with the lab test study of formation blockage mechanism, high pressure and low production rate factors in Chang2 oil deposits of No.1 dalugou district are discussed and analyzed in the article, based on researches of fine description technology of oil reservoirs, such as sedimentary microfacies, reservoir anisotropism, three dimensional geological modeling, numerical simulation and so on. Comments of adjustment measures are put forward in the paper.
关键词
油藏描述
低产因素
室内试验
reservoir description
low production rate factor
lab test.
