石油钻采工艺Issue(6)：90-93,4.DOI:10.13639/j.odpt.2014.06.022
辽河油田稠油油藏筛管完井水平井分段化学堵水技术
Staged chemical water plugging for horizontal wells with screen completions for heavy oil reservoirs in Liaohe Oilifeld
摘要
Abstract
At present, due to invasion of edge water and bottom water, some horizontal wells with screen completion for heavy oil reservoirs in Liaohe Oilifeld are producing with high watercut, which severely affects their productivity;for this reason, research on staged chemical water plugging technique has been conducted, and key tools and water plugging materials have been developed like ifshable bridge plug in horizontal wells, high temperature resistance plugging agent for horizontal wells, liquid plug for horizontal wells, etc., and the staged chemical water plugging for horizontal wells has been developed, which can realize accurate water plugging at any point in horizontal section, and water plugging accuracy can be up to 2 m. This technique has been used for 19 well-times since 2010 on such blocks as Xinhai Block 27, Du Block 84, Gao Block 246 and Leng Block 41 in Liaohe Oilifeld. By April of 2014, accumulated increase in oil production was 8 173 t and water reduction was 9.69×104 m3, so the tests were proved very effective. Field tests show that staged chemical water plugging technique for horizontal wells can meet the requirement of water plugging in horizontal wells and has signiifcant promotion and application value. At present, the effective period of staged chemical water plugging is about 8 months in general, so how to improve the effective period of water plugging remains to be tackled in further research.关键词
稠油油藏/筛管完井水平井/分段化学堵水/耐高温堵剂/辽河油田Key words
heavy oil reservoir/horizontal well with screen completion/staged chemical water plugging/high temperature resis-tance plugging agent/Liaohe Oilifeld分类
能源科技引用本文复制引用
赵吉成..辽河油田稠油油藏筛管完井水平井分段化学堵水技术[J].石油钻采工艺,2014,(6):90-93,4.基金项目
中国石油天然气集团公司重大科研项目“辽河油田千万吨稳产专项--采油工程配套关键技术研究与应用”（编号2012E-3008）。 （）
