Wellbore strengthening composition
Abstract
In one aspect, embodiments disclosed herein relate to a wellbore strengthening composition including at least one polymer capable of polymerizing through a free radical polymerization reaction from the group of epoxy acrylates, modified epoxy acrylates, epoxy precursors, modified epoxy vinyl esters, unsaturated polyesters, urethane (meth)acrylates, polyester acrylates, epoxy vinyl ester resins having the wherein R and R 1 -R 5 may be CH 3 — or H and R 6 -R 21 may be H or Br, and polymer combinations thereof; and at least one initiator, wherein the resin is present in the amount from about 10 to about 90 weight percent.
Claims
exact text as granted — not AI-modified1 .- 12 . (canceled)
13 . A method of treating an earth formation comprising:
introducing at least one polymer in a liquid phase into the earthen formation; introducing at least one initiator into the earthen formation; and contacting the polymer and the initiator to form a composite; wherein the polymer comprises at least one polymer capable of polymerizing through a free radical polymerization reaction from the group of epoxy acrylates, modified epoxy acrylates, epoxy precursors, modified epoxy vinyl esters, unsaturated polyesters, urethane (meth)acrylates, polyester acrylates, epoxy vinyl ester resins having the formula:
wherein R and R 1 -R 5 may be CH 3 — or H and R 6 -R 21 may be H or Br, and polymer combinations thereof.
14 . The method of claim 13 , wherein the initiator is selected from the group consisting of benzoyl peroxide, dibenzoyl peroxide, diacetyl peroxide, di-t-butyl peroxide, cumyl peroxide, dicumyl peroxide, dilauryl peroxide, t-butyl hydroperoxide, methyl ketone peroxide, acetylacetone peroxide, methylethyl ketone peroxide, dibutylperoxyl cyclohexane, di (2,4-dichlorobenzoyl) peroxide, diisobutyl peroxide, t-butyl perbenzoate, t-butyl peracetate, and combinations thereof.
15 . The method of claim 13 , further comprising:
introducing at least a monomer from the group of hydroxyethyl methacrylate (HEMA), hydroxypropyl methacrylate (HPMA), acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, isodecyl acrylate, stearyl acrylate, lauryl acrylate, tridecyl acrylate, isoctyl acrylate, ethyoxylated bisphenol A diacrylate, ethoxylated hydroxyethyl acrylate, allyl acrylate, glycidyl methacrylate, 1,4-butanediol diacrylate (BDDA), 1,6-hexanediol diacrylate (HDDA), diethylene glycol diacrylate, 1,3-butylene glycol diacrylate, neopentyl glycol diacrylate, cyclohexane dimethanol diacrylate, dipropylene glycol diacrylate, ethoxylated bisphenol A diacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, polyethylene glycol diacrylate, polypropylene glycol diacrylate, 4-acryloylmorpholine, metal chelated derivates of acrylates, related derivatives, methacrylate derivatives, acrylate derivatives, and combinations thereof into the earthen formation.
16 . The method of claim 13 wherein introducing the at least one polymer and introducing the at least one initiator into the earthen formation occurs simultaneously.
17 . The method of claim 13 wherein introducing the at least one polymer and introducing the at least one initiator into the earthen formation occurs sequentially.
18 . A method for sealing a subterranean well comprising:
pumping at least one polymer in a liquid phase into at least a portion of an annular space between the sidewalls of a wellbore and the exterior of a casing string disposed in the wellbore, pumping at least one initiator into at least a portion of the annular space; and allowing the at least one polymer and the at least one initiator to solidify into a composite therein, wherein the at least one polymer comprises at least one polymer capable of polymerizing through a free radical polymerization reaction from the group of epoxy acrylates, modified epoxy acrylates, epoxy precursors, modified epoxy vinyl esters, unsaturated polyesters, urethane (meth)acrylates, polyester acrylates, epoxy vinyl ester resins having the formula:
wherein R and R 1 -R 5 may be CH 3 — or H and R 6 -R 21 may be H or Br, and polymer combinations thereof.
19 . The method of claim 18 , wherein the solidified composite forms a gas-tight seal along the exterior of the casing string and the sidewalls of the subterranean well.
20 . The method of claim 18 , wherein the initiator is selected from the group consisting of benzoyl peroxide, dibenzoyl peroxide, diacetyl peroxide, di-t-butyl peroxide, cumyl peroxide, dicumyl peroxide, dilauryl peroxide, t-butyl hydroperoxide, methyl ketone peroxide, acetylacetone peroxide, methylethyl ketone peroxide, dibutylperoxyl cyclohexane, di (2,4-dichlorobenzoyl) peroxide, diisobutyl peroxide, t-butyl perbenzoate, t-butyl peracetate, and combinations thereof.
21 . The method of claim 18 , further comprising:
introducing at least a monomer from the group of hydroxyethyl methacrylate (HEMA), hydroxypropyl methacrylate (HPMA), acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, isodecyl acrylate, stearyl acrylate, lauryl acrylate, tridecyl acrylate, isoctyl acrylate, ethyoxylated bisphenol A diacrylate, ethoxylated hydroxyethyl acrylate, allyl acrylate, glycidyl methacrylate, 1,4-butanediol diacrylate (BDDA), 1,6-hexanediol diacrylate (HDDA), diethylene glycol diacrylate, 1,3-butylene glycol diacrylate, neopentyl glycol diacrylate, cyclohexane dimethanol diacrylate, dipropylene glycol diacrylate, ethoxylated bisphenol A diacrylate, trimethylolpropane triacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, polyethylene glycol diacrylate, polypropylene glycol diacrylate, 4-acryloylmorpholine, metal chelated derivates of acrylates, related derivatives, methacrylate derivatives, acrylate derivatives, and combinations thereof into the subterranean well.
22 . The method of claim 18 wherein pumping the at least one polymer and pumping the at least one initiator into the earthen formation occurs simultaneously.
23 . The method of claim 18 wherein pumping the at least one polymer and pumping the at least one initiator into the earthen formation occurs sequentially.
24 . The method of claim 13 , wherein the non-aqueous solvent is selected from the group of mineral oil, biological oil, diesel oil and synthetic oil.
25 . The method of claim 18 , wherein the non-aqueous solvent is selected from the group of mineral oil, biological oil, diesel oil and synthetic oil.Join the waitlist — get patent alerts
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