Thermally-activated gellant for an oil or gas treatment fluid

摘要

A treatment fluid for treating a portion of a subterranean formation comprises: a base fluid, wherein the base fluid comprises a hydrocarbon liquid; and a gellant, wherein the gellant: is a polymer; and is activated at an activation temperature, wherein the thermal activation of the gellant causes the treatment fluid to become a gel. A method of treating a portion of a subterranean formation includes introducing the treatment fluid into the portion of the subterranean formation, wherein the subterranean formation is penetrated by a well, wherein at least a portion of the well has a bottomhole temperature greater than or equal to the activation temperature, and wherein the step of introducing comprises introducing the treatment fluid into the portion of the well.

主权项

1. A method of treating a portion of a subterranean formation comprising:
introducing a treatment fluid into the portion of the subterranean formation, wherein the treatment fluid comprises:
(A) a base fluid, wherein the base fluid comprises a hydrocarbon liquid; and(B) a gellant, wherein the gellant:
(i) is a polymer, and wherein the gellant has a molecular weight in the range of 500,000 to 2,000,000; and(ii) is activated at an activation temperature of between 100° F. and 140° F., wherein the thermal activation of the gellant causes the treatment fluid to become a gel, wherein the subterranean formation is penetrated by a well, wherein at least a portion of the well has a bottomhole temperature greater than or equal to the activation temperature, and wherein the step of introducing comprises introducing the treatment fluid into the portion of the well and wherein the treatment fluid remains a gel at a temperature below the activation temperature once the gellant is activated.