SLP油层解堵剂的研究与应用  

DEVELOPMENT AND APPLICATION OF CHEMICAL REMOVERS SLP-1 AND SLP-2 FOR BLOCKAGE IN RESERVOIRS

作　　者：曹养诗 段大文 孙旺修[1] 张艳琴[1] 

机构地区：[1]胜利石油管理局临盘采油厂工艺所

出　　处：《油田化学》1992年第4期302-307,共6页Oilfield Chemistry

摘　　要：SLP油层解堵剂包括SLP-1和SLP-2两种药剂。本文对SLP-1和SLP-2的性能进行了评定,提出了SLP油层解堵剂的施工配方与施工工序,介绍了SLP的解堵机理与现场应用情况。SLP油层解堵剂可解除油层中BaSO_4、SrSO_4等酸难溶盐及高分子量有机物质的堵塞。The oil productivity of Linpan and other Oil Fields in Shengli has been notably affected by the blockage caused by interformational scaling of hardly soluble salts and sedimentation of resin-asphaltic substances. To eliminate such blockages chemical removers SLPs are developed: SLP-1 is a cornplexing agent, carboxylic acid salts with multiple complexible groups (ligand), being miscible with water and serves to solve out hardly soluble salts from scale; SLP-2 is a mixture of nonionic surfactants, isopropanol, aromatic hydrocarbons and other solvents for removing resin-asphaltic substances in scale. The SLPs are applied in field operations according to following procedure: 8—12%SLP -2+5%SLP-1+2%KCl in 0.4-0.6m^3 perm stratum as pad fluid, 25—30%SP-1+2% KCl in 0.5—0.7m^3 per m stratum for blockage removing, 2% KCl as replacement. Since 1988 SLPs have been applied in 39 producing wells in Shengli Oil Fields with successes. An example is described in detail. The mechanizms of blockage removing by SLP-1 and SLP-2 and the results of laboratory evaluation are presented.

关 键 词：有机羧酸盐 表面活性剂 油层 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]