公开(公告)号：US20230331599A1

公开(公告)日：2023-10-19

申请号：US17722815

申请日：2022-04-18

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Fahd Ibrahim Alghunaimi ,  Tao Chen ,  Mohammed Abudullah Bataweel ,  Hind Saleh Aldossary

IPC: C02F1/52

CPC classification number: C02F1/5236 ,  C02F1/5209 ,  C02F2101/101

Abstract: A method of desulfating seawater includes adding a produced water to a sulfated seawater, forming a first precipitate, separating the first precipitate from the sulfated seawater, measuring the sulfate ion concentration of the desulfated seawater, adding a precipitating agent to the sulfated seawater, and separating a second precipitate from the sulfated seawater. Another method of desulfating seawater includes determining concentrations of sulfates in a sulfated seawater and a precipitating agent in a produced water, adding the produced water to the sulfated seawater based on the determined concentrations of sulfates in the sulfated seawater and the precipitating agent in the produced water, forming a first precipitate, separating the first precipitate from the sulfated seawater, measuring the sulfate ion concentration of the desulfated seawater, adding a precipitating agent to a sulfated seawater, and separating a second precipitate from the sulfated seawater.

公开(公告)号：US11788390B2

公开(公告)日：2023-10-17

申请号：US17174445

申请日：2021-02-12

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：US20230002666A1

公开(公告)日：2023-01-05

申请号：US17354348

申请日：2021-06-22

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

Inventor： Ime Bassey Obot ,  Mumtaz A. Quraishi ,  Ahmad A. Sorour ,  Tao Chen ,  Qiwei Wang ,  Mohammed A. Bataweel ,  Norah Abdullah Aljeaban

IPC: C09K8/52

Abstract: A composition for inhibiting corrosion in hydrocarbon wells includes a pyranopyrazole derivative. The pyranopyrazole derivative includes a pyrazole moiety, a dihydropyran moiety, and a phenyl moiety. The dihydropyran moiety is bound to the pyrazole moiety. The phenyl moiety is bound to the dihydropyran moiety. The composition can be flowed into a wellbore formed in a subterranean formation, thereby inhibiting corrosion in the wellbore.

公开(公告)号：US11078408B2

公开(公告)日：2021-08-03

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 ,  C02F1/52 ,  C09K8/03 ,  C09K8/60 ,  C09K8/74 ,  C09K8/88 ,  C09K8/508 ,  C09K8/506 ,  C09K8/86 ,  C02F103/08 ,  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：US11001749B2

公开(公告)日：2021-05-11

申请号：US16731627

申请日：2019-12-31

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：US20180265992A1

公开(公告)日：2018-09-20

申请号：US15919900

申请日：2018-03-13

Applicant: Saudi Arabian Oil Company

Inventor： Fakuen Frank Chang ,  Tao Chen ,  Qiwei Wang

IPC: C23F11/18

CPC classification number: C23F11/182 ,  C09K8/54 ,  C09K2208/32 ,  C23C22/50 ,  C23C22/62 ,  C23C22/68

Abstract: Treating carbon steel tubing includes contacting the carbon steel tubing with a first treatment solution including a salt; corroding the carbon steel tubing with the salt to yield a corroded surface on the carbon steel tubing; contacting the corroded surface on the carbon steel tubing with a second treatment solution comprising sulfide ions; and forming an iron sulfide layer on the corroded surface of the carbon steel tubing by chemically bonding the sulfide ions in the second treatment solution with iron in the carbon steel tubing. In some cases, the first treatment solution also includes sulfide ions, and the iron sulfide layer is formed by contacting the carbon steel tubing with the first treatment solution.