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低渗透砂岩油藏进入开发中后期,随着采液强度的提高,油井出砂更为严重、更为复杂,特别是水驱单元油井防砂后低液低效、多层合采井增液不增油现象普遍存在,严重影响油田开发效果。开发实践证明,防砂技术发展和进步是低渗砂岩油藏正常开发的重要前提和技术保障。针对油藏特点,开展防砂适应性研究与效果评价,创新防砂治理与油藏分析一体化理念,从单纯治砂转变为进攻性的增产的防砂措施,配套工艺创新与改进,改善油藏开发效果。
Low-permeability sandstone reservoirs have entered the middle and late stages of development. With the increase of liquid production strength, oil sands are more serious and more complicated. In particular, Increasing the phenomenon of oil is widespread, seriously affecting the oilfield development results. Development practice has proved that the development and progress of sand control technology is an important prerequisite and technical guarantee for the normal development of low-permeability sandstone reservoirs. According to the characteristics of the reservoir, the research on sand control adaptability and evaluation of effects, the concept of integration of sand control and reservoir analysis shall be innovated to change from simple sand control to offensive sand control measures for stimulation, innovation and improvement of matching technologies and improvement of reservoir development effects .