Halliburton Energy Services, Inc.

Vaishali Mishra

Rahul Chandrakant Patil

Sunita Sameer Kadam

Sandip Prabhakar Patil

Sheetal Singh

Waseem Abdulrazzaq

Reem Mohammed Alburaikan

Mohamed Abdel Salam

Philip D Nguyen

Samuel Jason Lewis

Krishna M Ravi

Rajender Salla

Ramesh Muthusamy

Ganesh Shriniwas Pangu

Ravikant S Belakshe

Tamal Kumar Sen

Jag Pravesh

Shreya Mohan

Vilas Ramtenki

Bhau Anantha Kuchik

Siddharth Roy

Methods for treating fluids used in the production and/or transport of petroleum products and natural gas, and methods for the removal of acidic gases encountered in fluids used and encountered in such operations are provided. In one embodiment, the methods include introducing a treatment fluid including a polymeric swellable acid scavenger that includes at least one polymeric composition into a wellbore penetrating at least a portion of a subterranean formation in which an acidic gas, an acid-containing fluid, or both, are present.

Polymeric swellable scavengers for acidic gases

A variety of systems, methods and compositions are disclosed, including, in one method, a method of cementing may comprise: providing a cement composition comprising a hydraulic cement, water, and a functionalized polyethyleneimine retarder; placing the cement composition in a selected location; and allowing the cement composition to set.

Functionalized polyalkyleneimine cement retarder

A treatment fluid may comprise: a water having hardness at about 300 ppm or greater, a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW); and an alkali metal base at about 0.01% to about 5% BWOW, wherein the chelating agent and alkali metal base reduce the negative effect of the water on hydrating swellable clays.

Hydrating swellable clays

Methods for producing a swellable packer in a downhole environment are provided. A method includes introducing a treatment fluid containing a polymeric composition into a wellbore within the downhole environment and exposing the polymeric composition to an acid to produce a swollen polymeric material within the downhole environment. The polymeric composition contains a reaction product of at least one or more monomers, one or more comonomers, and one or more crosslinkers. The acid can be in situ formed from an acid precursor introduced into the downhole environment.

Swellable packers and methods for activating swellable packers in a downhole environment

Compositions, methods, and systems for mitigating annular pressure buildup in a wellbore. A method comprises introducing a spacer fluid into an annulus of the wellbore, wherein the spacer fluid comprises an aqueous base fluid, an acid swellable polymer, and a hydrolysable ester. The method further comprises allowing or causing to allow at least a portion of the spacer fluid to remain in the annulus; and allowing or causing to allow a temperature to increase in the annulus to the temperature sufficient to hydrolyze the hydrolysable ester; wherein hydrolysis of the hydrolysable ester produces an acid; wherein the acid reacts with the acid swellable polymer to produce a salt; and wherein the produced salt has a thermal expansion coefficient less than that of the aqueous base fluid.

Annular pressure buildup mitigation using acid swellable polymer system

A method may comprise: mixing a water having hardness at about 300 ppm or greater with a plurality of particulates, a swellable clay, a chelating agent at about 0.01% to about 5% by weight of the water (BWOW), and an alkali metal base at about 0.01% to about 5% BWOW to produce a treatment fluid; and introducing the treatment fluid into a wellbore penetrating a subterranean formation.

Various embodiments disclosed relate to proppant including a swellable coating thereon for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a proppant including a coating thereon. The coating is swellable with aqueous medium in response to a trigger including acidic pH, CO, HS, or a combination thereof.

Proppant comprising swellable coating thereon for treatment of subterranean formations

A method of treating a subterranean formation includes introducing cement composition into a wellbore, the cement composition including a pumpable slurry of cement comprising a copolymer capable of swelling in a gaseous environment. A composition includes a pumpable slurry of cement comprising a copolymer capable of swelling in a gaseous environment.

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Pune, India

Vaishali Mishra