公开(公告)号：US20220033706A1

公开(公告)日：2022-02-03

申请号：US17395933

申请日：2021-08-06

Applicant: Chevron U.S.A. Inc.

Inventor： Do Hoon Kim ,  Dennis Arun Alexis ,  Varadarajan Dwarakanath ,  David Espinosa ,  Taimur Malik ,  Logan Jackson ,  Tom Lynch ,  Ronald Robinson ,  Frances Fournier ,  Hong Yang ,  Sukhjit Aujla

IPC: C09K8/588 ,  C09K8/584 ,  E21B43/20

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.

公开(公告)号：US20170158948A1

公开(公告)日：2017-06-08

申请号：US15372170

申请日：2016-12-07

Applicant: Chevron U.S.A. Inc.

Inventor： Do Hoon Kim ,  Dennis Arun Alexis ,  Varadarajan Dwarakanath ,  David Espinosa ,  Taimur Malik ,  Logan Jackson ,  Tom Lynch ,  Ronald Robinson ,  Frances Fournier ,  Hong Yang ,  Sukhjit Aujla

IPC: C09K8/588 ,  E21B43/26 ,  C09K8/88 ,  C09K8/584 ,  C09K8/68

CPC classification number: C09K8/588 ,  C09K8/584 ,  C09K8/68 ,  C09K8/882 ,  C09K2208/28 ,  E21B43/20 ,  E21B43/26

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.

公开(公告)号：US12275893B2

公开(公告)日：2025-04-15

申请号：US18437915

申请日：2024-02-09

Applicant: CHEVRON U.S.A. INC.

Inventor： Do Hoon Kim ,  Dennis Arun Alexis ,  Varadarajan Dwarakanath ,  David Espinosa ,  Taimur Malik ,  Logan Jackson ,  Tom Lynch ,  Ronald Robinson ,  Frances Fournier ,  Hong Yang ,  Sukhjit Aujla

IPC: C09K8/588 ,  C09K8/584 ,  E21B43/20

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.

公开(公告)号：US20240271031A1

公开(公告)日：2024-08-15

申请号：US18437942

申请日：2024-02-09

Applicant: CHEVRON U.S.A. INC.

Inventor： Do Hoon Kim ,  Dennis Arun Alexis ,  Varadarajan Dwarakanath ,  David Espinosa ,  Taimur Malik ,  Logan Jackson ,  Tom Lynch ,  Ronald Robinson ,  Frances Fournier ,  Hong Yang ,  Sukhjit Aujla

IPC: C09K8/588 ,  C09K8/584 ,  E21B43/20

CPC classification number: C09K8/588 ,  C09K8/584 ,  E21B43/20

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.

公开(公告)号：US20240174914A1

公开(公告)日：2024-05-30

申请号：US18336457

申请日：2023-06-16

Applicant: CHEVRON U.S.A. INC.

Inventor： Do Hoon Kim ,  Dennis Arun Alexis ,  Varadarajan Dwarakanath ,  David Espinosa ,  Taimur Malik ,  Logan Jackson ,  Tom Lynch ,  Ronald Robinson ,  Frances Fournier ,  Hong Yang ,  Sukhjit Aujla

IPC: C09K8/588 ,  C09K8/584 ,  E21B43/20

CPC classification number: C09K8/588 ,  C09K8/584 ,  E21B43/20

Abstract: Provided herein are liquid polymer (LP) compositions comprising a synthetic (co)polymer (e.g., an acrylamide (co)polymer), as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of a synthetic (co)polymer (e.g., an acrylamide (co)polymer) of from 50 to 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in oil and gas operations, including enhanced oil recovery.

公开(公告)号：US11299409B2

公开(公告)日：2022-04-12

申请号：US15781893

申请日：2016-12-07

Applicant: KEMIRA OYJ ,  CHEVRON U.S.A. INC.

Inventor： Logan Jackson ,  Thomas J. Lynch ,  Ronald Robinson ,  Frances Fournier ,  Hong Yang ,  Sukhjit Aujla ,  Do Hoon Kim ,  Dennis Arun Alexis ,  Varadarajan Dwarakanath ,  David Espinosa ,  Taimur Malik

IPC: D21H17/37 ,  C02F1/56 ,  C02F11/14 ,  C08J3/07 ,  C02F11/147 ,  C02F103/10

Abstract: Provided herein are liquid polymer (LP) compositions comprising an acrylamide (co)polymer, as well as methods for preparing inverted polymer solutions by inverting these LP compositions in an aqueous fluid. The resulting inverted polymer solutions can have a concentration of acrylamide (co)polymer of from about 50 to about 15,000 ppm, and a filter ratio of 1.5 or less at 15 psi using a 1.2 μm filter. Also provided are methods of using these inverted polymer solutions in dewatering, clarification, flocculation and/or thickening applications, and the like.