深部调驱技术在砾岩油藏二次开发中的应用——以克拉玛依油田七中区克下组油藏深部调驱试验为例

APPLICATION OF DEEP PROFILE CONTROL TECHNOLOGY IN THE SECONDARY DEVELOPMENT OF CONGLOMERATE RESERVOIR

深部调驱技术是以深部调剖为主,在"调"的基础上又结合了"驱"的效果,并具有提高波及系数和驱油效率的双重作用。克拉玛依砾岩油藏在二次开发的过程中,局部区域注入水沿高渗通道窜进明显。为了进一步保障水驱开发效果,2010年开始在七中区克下组砾岩油藏开展了9个井组的深部调驱试验,形成了砾岩油藏深部调驱选区选井原则、配方体系研究、数值模拟技术、注采跟踪调整等核心配套技术。试验表明,深部调驱技术可以有效改善砾岩油藏开发效果,实现提高采收率5%左右的目标。

The deep profile control technology is mainly based on deep profile control,and has improved sweep efficiency and enhanced oil displacement efficiency.In the course of the second development water along the high permeability channels entered obviously in the local area injection.In order to guarantee the effect of water flooding,from the beginning of 2010 in Lower Karamay conglomerate reservoir in the central seven,we carried out deep 9 well groups in the flooding experiment,forming the deep profile control and flooding in conglomerate reservoir constituencies well selection principle;formula system research;numerical simulation technology,the injection production tracking adjustment core supporting technology.The test shows that the deep profile control technology can effectively improve the conglomerate reservoir development effect,and the goal of improving the recovery rate of about 5%is attained.