低粘土相低伤害压井液HL-2  

LOWER DAMAGING LOAD FLUID HL 2 WITH LOWER CLAY CONTENT

作　　者：徐桂英[1] 刘木辛[1] 李方[1] 郑立强[1] 郑碧锁[2] 刘高友[2] 严锦根[2] 邓丽清 王金荣[2] 

机构地区：[1]山东大学胶体与界面化学国家教委开放研究实验室 [2]胜利石油管理局孤东采油厂工艺研究所

出　　处：《油田化学》1997年第4期313-316,共4页Oilfield Chemistry

摘　　要：ＨＬ２压井液由高含铁废矿渣粉、ＭＭＨ、ＸＹ２７、ＣＭＣＮａ及少量膨润土复配而成。本文介绍了该压井液的性能及现场应用效果。In this paper the performance properties and uses of load fluid HL 2 are presented. HL 2 is composed of 3-4% bentonite, 0.3-0.5% MMH, 0.8% Na CMC, a little diluent XY 27, and high iron content powdered slag and its density is controllable in range 1.2-1.8 g/cm 3. HL 2 is stable at 80℃ over more than 72 hrs, possesses good rheoiogic characteristics, low filtration losses and satisfactory corrosivity, forms no foam and emulsion in contact with gases and oils. Clay disks swell much less in load fluid HL 2 than in 5-7% KCl solutions and the cores of reservoir formations are only slightly damaged by HL 2 in core permeability experiments. HL 2 has been successfully used since may 1995 in more than 200 downhole remedial treatments in Gudong Oil Fields, Shengli.

关 键 词：压井液 低粘土相 修井作业 HL-2 低伤害压井液 

分 类 号：TE254.4[石油与天然气工程—油气井工程] TE358