WELLBORE CEMENT STRUCTURES AND RELATED COMPOSITIONS
Compositions and methods including a polyaramid-reinforced cement. The polyaramid-reinforced cement may comprise a cement at 100% by weight of blend (bwob); a polyaramide polymer at 0.01% weight of the cement (bwob) to 80% bwob; and water at 30% bwob to 70% bwob. The polyaramid-reinforced cement may be used to produce a cement structure within a wellbore.
1 . A polyaramid-reinforced cement comprising:
a cement at 100% bwob;
a polyaramide polymer at 0.01% bwob to 80% bwob; and
water at 30% bwob to 70% bwob.
2 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement has a free water content of 0%.
3 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement further comprises a dispersant in the range of 0.01% bwob to 5% bwob.
4 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement further comprises a hydration retarder in the range of 0.01% bwob to 5% bwob.
5 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement further comprises an expanding agent in the range of 0.1% bwob to 5% bwob.
6 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement further comprises a fluid loss control agent in the range of 0.1% bwob to 2% bwob.
7 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement further comprises a defoamer in the range of 0.005% GPS to 1% GPS.
8 . The polyaramid-reinforced cement of claim 1 , wherein the polyaramid-reinforced cement further comprises a silica in the range of 30% bwob to 50% bwob.
9 . A method comprising:
introducing a polyaramid-reinforced cement into a wellbore, the polyaramid-reinforced cement comprising:
a cement;
a polymer component comprising a polyaramid polymer at 0.01% by weight of dry cement (bwob) to 8% bwob; and
water; and
curing the polyaramid-reinforced cement in the wellbore, thereby forming a cement structure therein.
10 . The method of claim 9 , wherein the polyaramid-reinforced cement has a free water content of 0%.
11 . The method of claim 9 , wherein the polyaramid-reinforced cement further comprises a dispersant in the range of 0.01% bwob to 5% bwob.
12 . The method of claim 9 , wherein the polyaramid-reinforced cement further comprises:
a dispersant in the range of 0.01% bwob to 5% bwob;
a hydration retarder in the range of 0.01% bwob to 5% bwob;
an expanding agent in the range of 0.1% bwob to 5% bwob;
a fluid loss control agent in the range of 0.1% bwob to 2% bwob;
a defoamer in the range of 0.005% GPS to 1% GPS; and
a silica sand in the range of 30% bwob to 50% bwob.
13 . A method comprising:
mixing a polyaramid-reinforced cement, the polyaramid-reinforced cement comprising:
a cement;
a polymer component comprising a polyaramide polymer at 0.01% by weight of cement (bwob) to 80% bwob; and
hydrating the polyaramid polymer with water;
introducing the polyaramid-reinforced cement into a wellbore; and
curing the polyaramid-reinforced cement in the wellbore, thereby forming a cement structure therein.
14 . The method of claim 13 , wherein the polyaramid-reinforced cement has a free water content of 0%.
15 . The method of claim 13 , wherein the polyaramid-reinforced cement further comprises a dispersant in the range of 0.01% bwob to 5% bwob.
16 . The method of claim 13 , wherein the polyaramid-reinforced cement further comprises:
a dispersant in the range of 0.01% bwob to 5% bwob;
a hydration retarder in the range of 0.01% bwob to 5% bwob;
an expanding agent in the range of 0.1% bwob to 5% bwob;
a fluid loss control agent in the range of 0.1% bwob to 2% bwob;
a defoamer in the range of 0.005% GPS to 1% GPS; and
a silica in the range of 30% bwob to 50% bwob.
17 . The method of claim 9 , wherein the polymer component consists of polyaramid polymer at 0.01% by weight of dry cement (bwob) to 80% bwob.
18 . The method of claim 13 , wherein the polymer component consists of polyaramid polymer at 0.01% by weight of dry cement (bwob) to 80% bwob.
19 . The method of claim 9 , wherein the polymer component comprises a polymer selected from the group consisting of poly-p-phenyleneteraphthalamid and poly-m-phenyleneteraphthalamid.
20 . The method of claim 13 , wherein the polymer component comprises a polymer selected from the group consisting of poly-p-phenyleneteraphthalamid and poly-m-phenyleneteraphthalamid.