应用HRS复合解堵剂解除清洁压裂液污染  

Application of HRS Compound Plugging Agent to Remove Clean Fracturing Fluid Contamination

作　　者：张玮[1,3] 张光波 张登文 连小华[2,3] 吴世仝 李咏梅[1] ZHANG Wei;ZHANG Guangbo;ZHANG Dengwen;LIAN Xiaohua;WU Shitong;LI Yongmei(Shanxi CBM Exploration and Development Branch,PetroChina Huabei Oilfield Company,Shanxi 048000;Engineering Technology Research Institute,PetroChina Huabei Oilfield Company,Hebei 062552;CBM Exploration and Development Pilot Test Base of CNPC,Hebei 062552)

机构地区：[1]中石油华北油田山西煤层气勘探开发分公司,山西048000 [2]中石油华北油田工程技术研究院,河北062552 [3]中国石油煤层气开采先导试验基地,河北062552

出　　处：《中国煤层气》2020年第5期31-34,共4页China Coalbed Methane

基　　金：国家科技重大专项"沁水盆地高煤阶煤层气高效开发示范工程"(2017ZX05064)。

摘　　要：清洁压裂液由于储层温度低难以破胶,对煤层造成了污染,导致产气效果差。分析了清洁压裂液的性能及伤害机理,提出了HRS复合解堵剂治理清洁压裂液伤害。HRS复合解堵剂可在井下生成强氧化性的ClO2,可以降解清洁压裂液中的有机高分子堵塞,增加煤储层渗透率,实现近井地带解堵。现场HRS复合解堵工艺实施效果验证了工艺的可行性,对瓜胶、泡沫类压裂液造成的储层污染治理具有指导意义。Due to the low temperature of the reservoir,the clean fracturing fluid is difficult to break the glue,which causes pollution to the coal seam,resulting in poor gas production effect.The paper analyzes the performance and damage mechanism of the clean fracturing fluid,puts forward the HRS compound plugging agent to treat the clean fracturing fluid damage.HRS compound plugging agent can generate ClO2 with strong oxidability in the well,which can degrade the organic polymer plugging in the clean fracturing fluid,increase the permeability of coal reservoir,and realize the near-well zone plugging.The feasibility of the process has been verified by the implementation effect of the field,which is of guiding significance to the treatment of the reservoir pollution caused by melon glue and foam fracturing fluid.

关 键 词：煤层气 清洁压裂液 HRS 解堵 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]