浅谈江汉油田调剖堵水技术的研究及发展

江汉油田已进入开发后期,剩余油分布零散、不连续。根据高含水后期裂缝、大孔道水窜严重的特点研究的颗粒凝胶堵剂复合堵水调剖技术,堵剂成本低,封堵效果好,适合于高温、高盐、高含水油田存在的裂缝及大孔道水窜地层调剖堵水,但对非贯通性裂缝及大孔道水窜不合适。因此,今后的调剖堵水技术研究必须从两方面着手:一是在改进的基础上用好老工艺,细化应用条件和应用范围;二是针对特殊地层开发新工艺,使调剖堵水工艺更加系列配套。需要强调的是在采用调剖堵水工艺时,要考虑尽量减小对低渗透层或油层的伤害。

The Research and Development of Profile Control and Water Shutoff Technique in Jianghan Oilfield

The distribution of residual oil is scattered and discontinuous in the late exploited period in Jianghan Oilfield.Plug agent cost of particle gel plug agent profile controlling/water shutoff technology researched according to the severe crevice and big pore water-run is low and its plugging effect is good.But it is not suitable for thorough crevice and big pore water-run.The research of profile controlling/water shutoff technology should be set about from two aspects.First,the past technology should used properly on the base of improvement.Application condition and scope should be refined.Second,new technology should be developed according to special formation to make the technology of profile controlling and water-shutoff more completed.We must pay more attention to minimize the harm to formation.