公开(公告)号：US20240059950A1

公开(公告)日：2024-02-22

申请号：US18336560

申请日：2023-06-16

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Ali Mohammed Hussain Al Safran ,  Abdullah Saleh Hussain Al-Yami ,  Omprakash Pal ,  Sara Abdulaziz Alkhalaf

IPC: C09K8/40 ,  C09K8/42 ,  C09K8/46 ,  E21B33/16

CPC classification number: C09K8/40 ,  C09K8/424 ,  C09K8/46 ,  E21B33/16

Abstract: A cement spacer fluid and a method for making and a method for using the cement spacer fluid are provided. The cement spacer fluid includes a polyethyleneimine hydrochloride (PEI HCl) salt, an aqueous solvent, a viscosifier, and a weighting agent.

公开(公告)号：US11905458B2

公开(公告)日：2024-02-20

申请号：US17675747

申请日：2022-02-18

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Ali Al-Safran ,  Khawlah A. Alanqari ,  Vikrant Wagle ,  Abdullah S. Al-Yami

IPC: C09K8/512 ,  E21B21/00 ,  C09K8/516

CPC classification number: C09K8/512 ,  C09K8/516 ,  E21B21/003

Abstract: Lost circulation material (LCM) compositions may include a resin; an emulsifier selected from the group consisting of ethoxylated phenol, sodium salt of modified tall oil fatty amide, carboxylic acid terminated fatty polyamide, modified amidoamine, tall oil fatty acid, oxidized tall oil fatty amidoamine, ether carboxylic acid, and combinations thereof; a crosslinker, a cementitious and/or weighting agent; a retarder; a dispersant; and a silicon-based defoamer. The LCM compositions may have a thickening time of from about 3 hours than about 6 hours by reaching a Bearden consistency of 100 Bc. Methods of eliminating or reducing lost circulation in a lost circulation zone from a well may include introducing these LCM compositions into the well.

公开(公告)号：US20230383167A1

公开(公告)日：2023-11-30

申请号：US17827273

申请日：2022-05-27

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Jothibasu Ramasamy ,  Vikrant Wagle ,  Mohammad A. Otaibi

IPC: C09K8/36

CPC classification number: C09K8/36

Abstract: A composition of an invert emulsion oil-based drilling fluid formulation includes an invert emulsion of an oil phase and an aqueous phase. The oil phase includes an oleaginous fluid and a liquid viscosifier that is a polyhedral oligomeric silsesquioxane (POSS). A method includes introducing an invert emulsion oil-based drilling fluid formulation including an oil phase, an aqueous phase, and a liquid viscosifier including POSS downhole through the wellbore and maintaining wellbore conditions such that the invert emulsion oil-based drilling fluid formulation provides a stable rheological property including one or more of viscosity, yield point, plastic viscosity, gel strength, and electrical stability for a period up to about 96 hours.

公开(公告)号：US20230323183A1

公开(公告)日：2023-10-12

申请号：US17716353

申请日：2022-04-08

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Vikrant Wagle ,  Abdullah Al-Yami ,  Omprakash Pal ,  Ali Al-Safran ,  Mohammad Alharthi ,  Sara Alkhalaf

IPC: C09K8/04 ,  C09K8/528 ,  C09K8/035

CPC classification number: C09K8/04 ,  C09K2208/12 ,  C09K8/035 ,  C09K8/528

Abstract: A wellbore fluid composition is provided that includes an aqueous base fluid and at least one ethylene ammonium salt having a number average molecular weight in a range of 250 to 500 grams per mole. A method of drilling a wellbore is also provided. the method includes circulating an aqueous drilling fluid into the wellbore while drilling, wherein the aqueous drilling fluid includes at least one ethylene ammonium salt. The aqueous drilling fluid further includes a pH value from 6.5 to 7.5. The method of drilling a wellbore further includes recovering shale cuttings while maintaining wellbore stability.

公开(公告)号：US11739250B2

公开(公告)日：2023-08-29

申请号：US17185000

申请日：2021-02-25

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Ali Al-Safran ,  Khawlah A. Alanqari ,  Vikrant Wagle ,  Abdulwahab Al-Joher ,  Abdullah S. Al-Yami

IPC: C09K8/512 ,  E21B21/00 ,  E21B33/138 ,  C09K8/504

CPC classification number: C09K8/512 ,  C09K8/5045 ,  E21B21/003 ,  E21B33/138

Abstract: Lost circulation material (LCM) compositions may include an epoxy resin, an emulsifier comprising a polyaminated fatty acid, water, a crosslinker, and an optional cementitious and/or weighting agent. These LCM compositions may have a density of from about 63 pounds per cubic foot (pcf) to about 99 pcf and may be capable of being injected through a drill bit of a drill string into a lost circulation zone in wellbores. Corresponding methods of eliminating or reducing lost circulation in a lost circulation zone from a well may include introducing these LCM compositions into the well.

公开(公告)号：US20230193112A1

公开(公告)日：2023-06-22

申请号：US17552395

申请日：2021-12-16

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Vikrant Wagle ,  Rajendra Arunkumar Kalgaonkar ,  Abdullah AlYami

IPC: C09K8/504 ,  C09K8/514 ,  C01B33/14

CPC classification number: C09K8/5045 ,  C09K8/514 ,  C01B33/14 ,  C09K2208/10 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/10

Abstract: Provided is a loss circulation material that may consist essentially of an acidic nanosilica dispersion and an activator. The acidic nanosilica dispersion may consist of acidic silica nanoparticles, stabilizer, and water, and may have a pH in a range of 3 to 6. The activator may be one or more from the group consisting of sodium bicarbonate, sodium chloride, or an amine salt. A method is provided for controlling lost circulation in a lost circulation zone in a wellbore comprising introducing the loss circulation material and forming a gelled solid from the loss circulation material in the lost circulation zone.

公开(公告)号：US11535557B2

公开(公告)日：2022-12-27

申请号：US17231569

申请日：2021-04-15

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Sara Abdulaziz Alkhalaf ,  Abdullah Al-Yami ,  Vikrant Wagle ,  Ali Alsafran

IPC: C04B24/18 ,  C04B24/10 ,  C04B7/02 ,  C09K8/467 ,  C04B103/24

Abstract: A retarder mixture for oil and gas well cementing includes a lignosulfonate compound and at least one hydrolyzed carbohydrate. A method includes blending the retarder mixture and a cement precursor to form a cement precursor mixture and introducing water into the cement precursor mixture to form a cement mixture. The cement mixture is pumped down a well and cures to form a cement sheath containing the cement precursor and the retarder mixture.

公开(公告)号：US11530346B2

公开(公告)日：2022-12-20

申请号：US16881548

申请日：2020-05-22

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Abdullah Al-Yami ,  Salem Alshammari ,  Vikrant Wagle ,  Hussain Albahrani ,  Zainab Alsaihati ,  Mohammad Alawami ,  Ali Al-Safran ,  Nasser Al-Alhareth ,  Abdullah Al-Awadh ,  Abdulaziz Alhelal

IPC: C09K8/14 ,  C04B33/04 ,  C04B33/13

Abstract: Disclosed are methods of preparing drilling fluid compositions containing treated calcium bentonite. One such method includes mixing calcium bentonite with an aqueous mixture containing soda ash, followed by adding starch to form the treated bentonite mixture that is used to prepare a drilling fluid composition. Another method includes mixing the calcium bentonite with an aqueous mixture containing soda ash and magnesium oxide, followed by adding starch to form the treated bentonite mixture that is used to prepare a drilling fluid composition.

公开(公告)号：US11492536B2

公开(公告)日：2022-11-08

申请号：US17176453

申请日：2021-02-16

Applicant: Saudi Arabian Oil Company

Inventor： Sara A. Alkhalaf ,  Abdullah S. Al-Yami ,  Vikrant Wagle ,  Abdulaziz Ibrahim Alhelal ,  Ali Mohammed Alsafran

IPC: C09K8/467 ,  C04B28/04 ,  E21B33/14 ,  C04B24/28

Abstract: According to one or more embodiments of the present disclosure, a cement slurry includes cement particles, an aqueous fluid in an amount of from 10 wt. % to 70 wt. % relative to the total weight of the cement particles, and a clay stabilizer consisting of one or more polyethylene polyamines having a first structure H2NCH2CH2(NHCH2CH2)xNH2, where x is an integer greater than or equal to 3. The amount of the clay stabilizer may be from 1 wt. % to 10 wt. % relative to the total weight of the cement particles. The average molecular weight of the polyethylene polyamines in the cement slurry having the first chemical structure may be from 200 g/mol to 400 g/mol. All of the polyethylene polyamines in the cement slurry having the first chemical structure may be encompassed in the clay stabilizer. Methods for cementing a casing in a wellbore using the cement slurry are also disclosed.

公开(公告)号：US11485894B2

公开(公告)日：2022-11-01

申请号：US16995069

申请日：2020-08-17

Applicant: Saudi Arabian Oil Company

Inventor： Sara A. Alkhalaf ,  Abdullah S. Al-Yami ,  Vikrant Wagle ,  Mohammad Abdullah Al-Harthi

IPC: C09K8/48 ,  C04B14/30 ,  C04B22/14 ,  C04B24/12 ,  C04B28/04 ,  E21B33/14 ,  E21B41/02 ,  C04B103/12

Abstract: A method of reducing corrosion in tubular strings installed in wellbores includes dispensing an accelerated cement composition into a wellbore annulus, a casing-casing annulus, or both, the accelerated cement composition comprising a cement composition and an accelerant composition, where: the cement composition comprises a cement precursor and water; the accelerant composition comprises triethanolamine; and a concentration of the triethanolamine in the accelerated cement composition is greater than or equal to 10,000 parts per million by weight; allowing the accelerated cement composition to cure in the annulus to form a cured cement, where the triethanolamine reacts with a metal of the tubular string, the reaction forming a protective layer on the surfaces of the tubular string that inhibits dissolution of iron from the metal of the tubular string.