公开(公告)号：US11097968B2

公开(公告)日：2021-08-24

申请号：US16570394

申请日：2019-09-13

Applicant: Chevron U.S.A. Inc.

Inventor： Mark Charlesworth ,  Christopher John Kalli ,  David Glynn Thomas ,  Wei Shi ,  Brendan Francis Graham ,  Zachary Mark Aman ,  Eric Freemantle May

IPC: C02F5/02 ,  C02F1/66 ,  C02F1/68 ,  C02F5/10 ,  C02F101/10 ,  C02F103/10 ,  C02F1/24 ,  C02F1/38 ,  C02F103/36

Abstract: A method for inhibiting the formation, deposition and adherence of scale to metallic and other surfaces in the equipment, vessels and/or piping of facilities for the handling of oil and gas produced fluid is disclosed. An effective scale inhibiting amount of alginate is added to a produced fluid containing a scale-forming divalent cation. The alginate effectively cross-links with a scale-forming divalent cation, e.g., calcium, forming an alginate gel for subsequent separation and removal from the produced fluid.

公开(公告)号：US20240183259A1

公开(公告)日：2024-06-06

申请号：US18437718

申请日：2024-02-09

Applicant: CHEVRON U.S.A. INC.

Inventor： Dawit Yenesew Dagnaw ,  Yifan Li ,  Brian Paul Price ,  Nabijan Nizamidin ,  Wei Shi ,  Omar Visairo ,  Kristen Anne Belcourt ,  Leonardo F. Chaves Leal ,  Aleisha Nichole Guiler ,  Amos Sunghyun Kim ,  Neil Robert Steil Dilorenzo

IPC: E21B43/26 ,  E21B37/06 ,  E21B43/20

CPC classification number: E21B43/26 ,  E21B37/06 ,  E21B43/20

Abstract: The present invention relates generally to processes for adding a chemical composition to a produced water mixture upstream of a pad related to a well to be fracked. The added chemical composition comprises a drag reducing agent, or a biocide, or a scale inhibitor, or any combination thereof. The produced water mixture comprising the added chemical composition may then be transferred in a pipeline to the well to be fracked. This offers a number of advantages that may include, for example, reducing the footprint at the pad, improved efficacy of biocide, reduced time to transfer produced water, and/or reduced pumping time during the fracking.

公开(公告)号：US10427963B2

公开(公告)日：2019-10-01

申请号：US15010550

申请日：2016-01-29

Applicant: Chevron U.S.A. Inc.

Inventor： Mark Charlesworth ,  Christopher John Kalli ,  David Glynn Thomas ,  Wei Shi ,  Brendan Francis Graham ,  Zachary Mark Aman ,  Eric Freemantle May

IPC: C02F5/02 ,  C02F1/66 ,  C02F1/68 ,  C02F5/10 ,  C02F101/10 ,  C02F103/10 ,  C02F1/24 ,  C02F1/38 ,  C02F103/36

Abstract: A method for inhibiting the formation, deposition and adherence of scale to metallic and other surfaces in the equipment, vessels and/or piping of facilities for the handling of oil and gas produced fluid is disclosed. An effective scale inhibiting amount of alginate is added to a produced fluid containing a scale-forming divalent cation. The alginate effectively cross-links with a scale-forming divalent cation, e.g., calcium, forming an alginate gel for subsequent separation and removal from the produced fluid.

公开(公告)号：US20200002206A1

公开(公告)日：2020-01-02

申请号：US16570394

申请日：2019-09-13

Applicant: Chevron U.S.A. Inc.

Inventor： Mark Charlesworth ,  Christopher John Kalli ,  David Glynn Thomas ,  Wei Shi ,  Brendan Francis Graham ,  Zachary Mark Aman ,  Eric Freemantle May

IPC: C02F5/02 ,  C02F1/66

Abstract: A method for inhibiting the formation, deposition and adherence of scale to metallic and other surfaces in the equipment, vessels and/or piping of facilities for the handling of oil and gas produced fluid is disclosed. An effective scale inhibiting amount of alginate is added to a produced fluid containing a scale-forming divalent cation. The alginate effectively cross-links with a scale-forming divalent cation, e.g., calcium, forming an alginate gel for subsequent separation and removal from the produced fluid.

公开(公告)号：US20160221849A1

公开(公告)日：2016-08-04

申请号：US15010550

申请日：2016-01-29

Applicant: Chevron U.S.A. Inc.

Inventor： Mark Charlesworth ,  Christopher John Kalli ,  David Glynn Thomas ,  Wei Shi ,  Brendan Francis Graham ,  Zachary Mark Aman ,  Eric Freemantle May

IPC: C02F5/02 ,  C02F1/66

CPC classification number: C02F5/02 ,  C02F1/24 ,  C02F1/38 ,  C02F1/66 ,  C02F1/68 ,  C02F5/10 ,  C02F2101/10 ,  C02F2101/101 ,  C02F2103/10 ,  C02F2103/365 ,  C02F2303/22

Abstract: A method for inhibiting the formation, deposition and adherence of scale to metallic and other surfaces in the equipment, vessels and/or piping of facilities for the handling of oil and gas produced fluid is disclosed. An effective scale inhibiting amount of alginate is added to a produced fluid containing a scale-forming divalent cation. The alginate effectively cross-links with a scale-forming divalent cation, e.g., calcium, forming an alginate gel for subsequent separation and removal from the produced fluid.

Abstract translation: 公开了一种用于抑制用于处理油气产生流体的设备，容器和/或管道中的金属和其它表面的氧化皮的形成，沉积和粘附的方法。 将含有鳞屑的二价阳离子的产生的流体中加入有效量的海藻酸盐。 藻酸盐与形成规模的二价阳离子（例如钙）有效地交联，形成藻酸盐凝胶，用于随后从产生的流体中分离和除去。