青海涩北气田疏松砂岩清洁携砂液的研究与应用  

DEVELOPEMENT AND APPLICATION OF CLEAN SAND CARRIER IN UNCONSOLIDATED SANDSTONE IN SEBEI GAS FIELD

作　　者：张启汉[1] 张士诚[1] 冯胜利[2] 施晓雯[2] 周福建[3] 

机构地区：[1]中国石油大学 [2]中国石油青海油田公司 [3]中国石油勘探开发研究院

出　　处：《钻采工艺》2007年第6期99-101,共3页Drilling & Production Technology

基　　金：中油股份公司"十五"重点攻关课题"柴达木盆地涩北气田疏松砂岩气藏描述和防砂技术研究"的部分成果

摘　　要：针对涩北气田高泥质疏松粉细砂岩气藏高压一次充填防砂中所用携砂盐水用量大、摩阻高、返排难等特点,通过携砂液机理研究和大量的室内实验,研制了携砂液配方,形成了一套适合涩北气田高压一次充填防砂的清洁携砂液体系。2006年在现场试验了10口井,使用清洁携砂液体系后,降低了施工摩阻,提高了携砂液的粘度,达到有效提高砂比,同时降低携砂液的用量和加速返排的目的,取得了较好的试验效果。Sebei Gas Field(SGF)consists of unconsolidated fine siltstone formations with high content of shale.Based on the problems of large volumes,high friction and bad flowback caused by salty water used as sand carrier in jobs of HRWP(high-rate-water packing)in SGF,a series of formulae of clean sand carriers(CSC)were developed after lots of experiments,which suited for HRWP jobs better than salty water.In 2006,CSC was used in 10 HRWP jobs with reduced friction resistances and rising carrier viscosity.The satisfying result shows that CSC can realize the aims of raising sand ratio,reducing sandcarrier volumes and accelerating flowback.

关 键 词：涩北气田 疏松粉细砂岩 清洁携砂液 研究与应用 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]