低渗、底水浅油层堵剂优选及矿场应用效果评价  

Optimization and field application evaluation of blocking agent for low-permeability and bottom-water shallow oil zone

作　　者：王宁[1] 任晓娟[1] 王航[1] 白耀文[2] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]延长油田股份有限公司定边采油厂,陕西榆林718600

出　　处：《油气藏评价与开发》2011年第4期47-50,共4页Petroleum Reservoir Evaluation and Development

摘　　要：针对FC区块长2低渗、底水浅油层的地质和开发特征,优选出了适合该区块的JK堵剂。其基本配方为:0.7%HPAM+0.3%酚类交联剂+5%醛类交联剂+固化剂+pH调节剂+0.08%低温诱导剂F+加重剂G;同时,设计出JK堵剂配套的堵水工艺技术。现场试验表明:JK堵剂具有较好的堵水选择性、油溶性和低温高强度的性质,矿场试验取得了很好的降水增油效果,两口堵水井平均含水下降57.2%,平均日增油量达0.8 t以上,堵水有效期也有了明显延长。Aiming at the geology and development characteristics of Chang2 low-permeability and bottom-water shallow oil zone in FC block, this paper screened out the JK blocking agent that was favourable for the block. The basic recipe of this agent was 0.7 % hydropolyacrylamide plus 0.3 % polyphenols crosslinker plus 5 % aldehyde crosslinker plus curing agent plus pH conditioning agent plus 0.08 % microtherm inductive agent F plus weighting material G, meanwhile the supporting water blocking technique was designed for ]K blocking agent. The field test proved the performance of JK blocking agent including good water blocking selectivi- ty, oil solubility and high strength at low temperature, and obtained good results in cutting water content and increasing oil produc- tion with the example that the average water content of two water blocking wells dropped by 52.7 % and their average daily oil out- put increased over 0.8 t and the validity of water blocking term was also obviously prolonged.

关 键 词：低渗 浅油层 堵剂 底水油藏 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]