Patent ID: 9518210
Filing Date: 2016-12-13
CPC Classification: C09K

Claim Text:
1. A method of servicing a wellbore in a subterranean formation comprising: introducing a first component of a lost circulation combating composition within a drilling fluid, wherein the first component comprises a gellable composition in an amount from about 0.2 weight percent (wt. %) to about 30 wt. % of the lost circulation combating composition and the drilling fluid is circulated through the wellbore during drilling operations; introducing a second component of the lost circulation combating composition into the wellbore via a flowpath separate from the flowpath by which the drilling fluid is circulated; and forming the lost circulation combating composition within a lost circulation zone; wherein the second component comprises an initiator; and wherein the gellable composition comprises polymerizable monomers that include: wherein the lost circulation combating composition further comprises a polymerization rate moderator selected from the group consisting of morpholine, tetramethylethylenediamine, polyethylenimine, triethanolamine, and ammonium carbonate, the polymerization rate moderator being present in an amount from about 3 wt. % to about 25 wt. % by weight of the drilling fluid.