测试与封堵一体化的段塞复合堵水技术  

Slug Compound Water Shut-Off Technique Based on the Integration of Water Finding and Plugging

作　　者：孙传宗 吴志伟 范乐元 孔庆东 李文伟 康晓泉 SUN Chuanzong;WU Zhiwei;FAN Leyuan;KONG Qingdong;LI Wenwei;KANG Xiaoquan(Great Wall Drilling Company of CNPC,Beijing 100101,China)

机构地区：[1]长城钻探国际测井公司,北京100101

出　　处：《重庆科技学院学报（自然科学版）》2020年第3期1-3,31,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：中国石油天然气集团公司海外重大科技项目“海外天然气藏复杂储层精细评价与预测技术”(2018D-4305)。

摘　　要：针对单井或井组出水问题,提出了测试与封堵一体化的段塞复合堵水技术。采用生产测井和套后测井仪器组合确定产水位置和出水量,通过油藏综合评价明确出水原因和剩余油分布,针对不同类型出水油井实行“一井一策”堵水方案。对于油水同出的厚油层,采用段塞复合堵水工艺,依次注入预保护堵剂段塞、预交联颗粒堵剂段塞、自交联高强度堵剂段塞,形成高强度的颗粒与凝胶网络,实现对水窜通道深部的高强度封堵。这套技术在海外碳酸盐岩油藏的生产井应用后,大大降低了油井产液的含水率;在砂岩油藏的高含水井应用后,也有效地降低了油井的产水量。In view of water channel of single well or well group,a slug compound water plugging technology is put forward.The combination of production logging and post casing logging tools is used to determine the water invasion location and production,and the cause of water invasion and the distribution of remaining oil are determined through comprehensive evaluation of the reservoir.Water plugging scheme of"one well,one policy"is implemented for different types of oil wells.For thick oil-water reservoirs,slug composite water plugging process is adopted,injecting pre blockage stoppers,pre crosslinking particle plugging agent slugs,and self-crosslinking high strength plugging agent slugs,in order to form a high strength particle and gel network to achieve high intensity plugging of water channeling passages.After the application of this technology in the production wells of overseas carbonate reservoirs,the water cut of oil production fluid is greatly reduced;after the application of this technology in the high water content wells of sandstone reservoirs,the water production of oil wells is also effectively reduced.

关 键 词：油井控水 封堵剂 复合段塞 测井 剩余油分布 

分 类 号：TE345[石油与天然气工程—油气田开发工程]