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AssigneeBaker Hughes Incorporated
InventorsKimberly Lant, Naima Bestaoui-Spurr, Sumit Bhaduri, James B. Crews, Hoang Le, Terry D. Monroe, Qi Qu
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A well treatment fluid contains a surface modifying treatment agent having an anchor and a hydrophobic tail. The surface modifying treatment agent is an organophosphorus acid derivative. After the well treatment fluid is pumped into a well penetrating the subterranean formation, the anchor binds to the surface of the formation. The subterranean formation is a siliceous formation or a metal oxide-containing subterranean formation. The anchor bonds to a Si atom when the formation is a siliceous formation and to the metal of the metal oxide when the formation is a metal oxide-containing formation. After being bound to the surface of the formation, frictional drag within the well is reduced. This allows for faster recovery of formation fluids. The bonding of the surface modifying treatment agent onto the formation may further be enhanced by first pre-treating the formation with a non-aqueous fluid. By increasing the number of sites for the surface modifying treatment agent to bind onto the surface of the subterranean formation, productivity is improved.
A method of treating a siliceous or metal (M) oxide-containing subterranean formation penetrated by a well comprising:
The method of claim 14, wherein R or R′ contains a terminal or omega functional groups.
The method of claim 16, wherein the terminal or omega functional group is selected from the group consisting of carboxyl, hydroxyl, amino, imino, amido, thio, cyano, sulfonate, carbonate, phosphonic acid or a mixture thereof.
A method of treating a siliceous or metal (M) oxide-containing subterranean formation penetrated by a well comprising:
A method of treating a siliceous or metal (M) oxide-containing subterranean formation penetrated by a well comprising:
Dependencies are inferred from the claim text.