公开(公告)号：US20210269701A1

公开(公告)日：2021-09-02

申请号：US16804876

申请日：2020-02-28

Applicant: Saudi Arabian Oil Company ,  Clariant International Ltd

Inventor： Lena Petrozziello ,  Christoph Wolfgang Kayser ,  Cyril Okocha ,  Tao Chen ,  Qiwei Wang ,  Norah Aljeaban

IPC: C09K8/528 ,  C08F220/56

Abstract: A polymeric scale inhibitor composition and a method for inhibiting metal sulfide scale formation in a well are provided. The composition includes 80-82 mol % of a first monomeric unit, where the first monomeric unit is 2-acrylamido-2-methylpropane sulfonic acid (AMPS). The composition also includes 2-18 mol % of a second monomeric unit selected from N-vinyl formamide, N-vinyl pyrrolidone, and diallyl dimethyl ammonium chloride. The composition further includes 2-18 mol % of a third monomeric unit selected from acrylic acid, methacrylic acid, esters of acrylic acid or methacrylic acid with an alcohol having 1 to 4 carbon atoms, and carboxyethyl acrylate. The polymeric scale inhibitors show superior adsorption characteristics on rocks and their subsequent release behavior allows for scale inhibition over extended time periods respectively at a significant volume of coreflood fluids. They are especially suited for downhole application via field scale squeeze treatments.

公开(公告)号：US10913889B2

公开(公告)日：2021-02-09

申请号：US16580816

申请日：2019-09-24

Applicant: Saudi Arabian Oil Company

Inventor： Leiming Li ,  Feng Liang ,  Tao Chen

IPC: C09K8/68 ,  C02F1/52 ,  C09K8/03 ,  C09K8/60 ,  C09K8/74 ,  C09K8/88 ,  C02F103/08 ,  C09K8/508 ,  C09K8/506 ,  C09K8/86 ,  C02F101/10

Abstract: Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.

公开(公告)号：US10563119B2

公开(公告)日：2020-02-18

申请号：US15661596

申请日：2017-07-27

Applicant: Saudi Arabian Oil Company

Inventor： Leiming Li ,  Feng Liang ,  Tao Chen

IPC: C09K8/68 ,  C09K8/60

Abstract: Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.

公开(公告)号：US20200017758A1

公开(公告)日：2020-01-16

申请号：US16580830

申请日：2019-09-24

Applicant: Saudi Arabian Oil Company

Inventor： Leiming Li ,  Feng Liang ,  Tao Chen

IPC: C09K8/68 ,  C09K8/60

Abstract: Embodiments of the present disclosure are directed to a method of producing a viscoelastic surfactant (VES) fluid, the VES fluid comprising desulfated seawater. The method of producing the VES fluid comprises adding an alkaline earth metal halide to seawater to produce a sulfate precipitate. The method further comprises removing the sulfate precipitate to produce the desulfated water. The method further comprises adding a VES and one or more of a nanoparticle viscosity modifier or a polymeric modifier to the desulfated seawater. Other embodiments are directed to VES fluids that maintain a viscosity greater than 10 cP at temperatures above 250° F.

公开(公告)号：US20180274339A1

公开(公告)日：2018-09-27

申请号：US15934645

申请日：2018-03-23

Applicant: Saudi Arabian Oil Company

Inventor： Qiwei Wang ,  Tao Chen

IPC: E21B41/02 ,  C23F15/00 ,  F16L58/04

Abstract: Mitigating corrosion and surface scale formation in a sour gas well includes providing an oil-based liquid to a sour gas well having carbon steel tubing with iron sulfide on a surface of the carbon steel tubing, contacting the carbon steel tubing with the oil-based liquid, and adsorbing a first portion of the oil-based liquid onto the iron sulfide, thereby yielding a hydrophobic coating on the carbon steel tubing.

公开(公告)号：US20250076239A1

公开(公告)日：2025-03-06

申请号：US18467489

申请日：2023-09-14

Applicant: Saudi Arabian Oil Company ,  King Fahd University of Petroleum & Minerals

Inventor： Panagiotis Kirmizakis ,  Norah Abdullah Aljeaban ,  Tao Chen ,  Pantelis Soupios ,  Ammar El-Husseiny ,  Mohamed Mahmoud

IPC: G01N27/20 ,  G01N27/04

Abstract: This disclosure relates to methods for identifying an onset of a scale formation. This disclosure also relates to methods of identifying a scale type in a hydrocarbon containing formation. This disclosure also relates to determining an amount of a scale formation in a hydrocarbon containing formation.

公开(公告)号：US20240409804A1

公开(公告)日：2024-12-12

申请号：US18809629

申请日：2024-08-20

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jian Hou ,  Ming Han ,  Tao Chen ,  Mohammed A. Bataweel ,  Xuan Zhang

IPC: C09K8/528 ,  C09K8/584 ,  C09K8/84

Abstract: A scale inhibitor fluid includes 0.001 ppm to 100 ppm of a phosphonate compound, 20 ppm to 400 ppm of a cation-containing surfactant, and an aqueous fluid. The cation-containing surfactant includes at least one of a single positively charged cation-containing surfactant, a double positively charged cation-containing surfactant and a zwitterionic cation-containing surfactant. A method for inhibiting scale formation in a wellbore includes introducing a phosphonate compound, a cation-containing surfactant and an aqueous fluid to the wellbore to produce a scale inhibitor fluid.

公开(公告)号：US12055020B2

公开(公告)日：2024-08-06

申请号：US18469277

申请日：2023-09-18

Applicant: Saudi Arabian Oil Company

Inventor： Tao Chen ,  Qiwei Wang

IPC: E21B43/12 ,  E21B33/068 ,  E21B34/02 ,  E21B47/00

CPC classification number: E21B43/12 ,  E21B33/068 ,  E21B34/02 ,  E21B47/00

Abstract: A downhole injection system in selective communication with a wellhead assembly and a wellbore, the downhole injection system including a pumping chamber in selective communication with the wellhead assembly, the pumping chamber defining a wellhead pressure portion defining a wellhead pressure inlet in selective communication with the wellhead assembly and a wellhead pressure outlet in selective communication with the wellhead assembly, where the wellhead pressure portion is maintained at a wellhead pressure, and a chemical portion in selective communication with the wellbore, and a movable plate positioned within the pumping chamber, where the chemical portion is separated from the wellhead pressure portion by the movable plate.

公开(公告)号：US20240218239A1

公开(公告)日：2024-07-04

申请号：US18092703

申请日：2023-01-03

Applicant: Saudi Arabian Oil Company

Inventor： Qiwei Wang ,  Tao Chen

IPC: C09K8/532 ,  C02F5/08

CPC classification number: C09K8/532 ,  C02F5/08 ,  C02F2103/06 ,  C02F2303/22

Abstract: This disclosure relates to methods for reducing or preventing the formation of calcium sulfate scaling in disposal wells by treating produced water with water-soluble barium salts.

公开(公告)号：US20240141756A1

公开(公告)日：2024-05-02

申请号：US17979505

申请日：2022-11-02

Applicant: Saudi Arabian Oil Company

Inventor： Qiwei Wang ,  Tao Chen ,  Hemant K. Sharma

IPC: E21B37/06 ,  E21B41/02

CPC classification number: E21B37/06 ,  E21B41/02 ,  E21B43/34

Abstract: The disclosure relates to systems and methods to deploy a chemical inhibitor (e.g., a scale inhibitor, a corrosion inhibitor, a biocide, a wax control substance, an asphaltene control substance) in an oil well.