METHOD FOR SINGLE-STAGE TREATMENT OF SILICEOUS SUBTERRANEAN FORMATIONS
摘要
In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F-) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.
申请公布号
CA2711905(A1)
申请公布日期
2009.07.30
申请号
CA20092711905
申请日期
2009.01.22
申请人
SCHLUMBERGER CANADA LIMITED
发明人
FRENIER, WAYNE W.;FU, DIANKUI;DAVIES, STEPHEN NIGEL;ZIAUDDIN, MURTAZA;XIAO, ZHIJUN;LECERF, BRUNO;BULTE, HELENE