A downhole sealant includes a composition that includes a polymer; an absorbent material; a primary crosslink network including primary bonds between chains of the polymer; and a secondary crosslink network which is transient. A method of regulating the swell rate of the downhole sealant includes disposing a downhole sealant comprising a polymer and an absorbent material in a borehole; maintaining a primary crosslink network of the polymer; and decomposing a secondary crosslink network of the absorbent material in response to a condition to regulate the swell rate of the downhole sealant.
申请公布号
AU2012348263(B2)
申请公布日期
2016.07.21
申请号
AU20120348263
申请日期
2012.11.05
申请人
BAKER HUGHES INCORPORATED
发明人
GERRARD, DAVID P.;GOODSON, JAMES E.;WELCH, JOHN C.;SADANA, ANIL K.