COMPOSITIONS AND METHODS OF TREATING HIGH TEMPERATURE SUBTERRANEAN FORMATIONS
摘要
Compositions and methods of treating high temperature subterranean formations of up to about 500 °F (260 °C) are provided. The compositions and methods utilize a high molecular weight synthetic copolymer and a pH buffer than maintains a pH in a range of about 4.5 to about 5.25 for the compositions. The high molecular weight synthetic copolymer is derived from acrylamide, acrylamidomethylpropanesulfonic acid, and vinyl phosphonate. A high temperature well treatment fluid comprising an electron donating compound comprising phenothiazine as thermal decomposition reduction additives for gels used in well treatment fluids is provided. The electron donating compound comprising phenothiazine performs as a stabilizer in well treatment fluids at temperatures of up to about 500 °F (260 °C).
申请公布号
WO2009097286(A1)
申请公布日期
2009.08.06
申请号
WO2009US32142
申请日期
2009.01.27
申请人
BJ SERVICES COMPANY;CARMAN, PAUL, S.;DAWSON, JEFFREY, C.