公开(公告)号：US20230151260A1

公开(公告)日：2023-05-18

申请号：US17529382

申请日：2021-11-18

Applicant: Saudi Arabian Oil Company

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

IPC: C09K8/467

CPC classification number: C09K8/467

Abstract: The present disclosure concerns a cement dispersant for cement compositions wherein the cement dispersant is a polynaphthalene sulfonate salt having a weight average molecular weight of from 2500 g/mol to 3000 g/mol. The cement compositions are of from 10 weight percent to 70 weight percent of a cement precursor based on the total weight of the cement composition, from 5 weight percent to 70 weight percent water based on the total weight of the cement composition, and from 0.001 percent by weight of cement (BWOC) to 1.0 percent BWOC the cement dispersant. The cement dispersant provides improved rheological properties, allowing for good cement dispensing and increased presence of weighting agents.

公开(公告)号：US20230035211A1

公开(公告)日：2023-02-02

申请号：US17390075

申请日：2021-07-30

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Vikrant Wagle ,  Rajendra Kalgaonkar ,  Abdullah S. Al-Yami

IPC: C09K8/504 ,  C09K8/508 ,  C09K8/516 ,  E21B33/138

Abstract: A downhole system includes a packer sealing an annular space around a downhole tubing and an insulating packer fluid positioned within the annular space and adjacent to the packer. The insulating packer fluid includes a sodium bicarbonate activator and an acidic nanosilica dispersion having silica nanoparticles and a stabilizer, wherein the pH of the acidic nanosilica dispersion ranges from 2 to 5, and the silica nanoparticles form at least 20 percent by weight of the acidic nanosilica dispersion.

公开(公告)号：US20230031885A1

公开(公告)日：2023-02-02

申请号：US17954773

申请日：2022-09-28

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

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.

公开(公告)号：US11566157B2

公开(公告)日：2023-01-31

申请号：US17176449

申请日：2021-02-16

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Sara Alkhalaf ,  Abdullah Al-Yami

IPC: C09K8/04 ,  C09K8/12 ,  E21B21/00 ,  C09K8/508

Abstract: Water-based drilling fluids may include an aqueous base fluid and a mixture of polyethylene polyamines in an amount of from 1 lbm/bbl to 20 lbm/bbl relative to the total volume of the water-based drilling fluid. The polyethylene polyamines of the mixture may have a first chemical structure H2NCH2CH2(NHCH2CH2)xNH2, where x may be an integer greater than or equal to 3. The average molecular weight of the polyethylene polyamines in the water-based drilling fluid having the first chemical structure may be from 200 g/mol to 400 g/mol. Methods for drilling a subterranean well with the water-based drilling fluids are also disclosed.

公开(公告)号：US20220325165A1

公开(公告)日：2022-10-13

申请号：US17224629

申请日：2021-04-07

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Vikrant Wagle ,  Jothibasu Ramasamy ,  Abdullah AlYami

IPC: C09K8/508 ,  C08G77/48 ,  C08G77/50 ,  C09K8/035 ,  E21B33/138 ,  E21B21/00

Abstract: An epoxy resin system composition and a loss circulation material including the reaction product of the epoxy resin system are provided. The epoxy resin system includes a polyhedral oligomeric silsesquioxane (POSS) epoxy resin with at least one reactive group, a curing agent, and a CO2 gas-generating compound. The CO2 gas-generating compound generates CO2 during the reaction such that a volume of the lost circulation material is greater than a volume of the epoxy resin system. A method of treating a defect in a wellbore includes introducing the epoxy resin system into the wellbore such that epoxy resin system is proximate to a face of the defect, and maintaining the epoxy resin system at the face of the defect such that the epoxy resin system cures and a lost circulation material forms and fluidly seals the defect in the wellbore.

公开(公告)号：US11434407B2

公开(公告)日：2022-09-06

申请号：US16922515

申请日：2020-07-07

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Jothibasu Ramasamy ,  Abdullah Al-Yami

IPC: C09K8/36 ,  C09K8/28

Abstract: An invert emulsion drilling fluids having a combination of fatty acids derived from waste vegetable oil (WVO) and a fatty alcohol as a rheology modifier. An invert emulsion drilling fluid may include a water in oil emulsion, an invert emulsifier, a fatty alcohol having six to thirty carbon atoms, and a fatty acid having six to eighteen carbon atoms. The fatty acid is provided by esterifying a waste vegetable oil to produce a methyl ester of the waste vegetable oil and cleaving an ester group from the methyl ester of the waste vegetable oil. The invert emulsion drilling fluid may be formulated free of organoclay. Methods of drilling a wellbore using an invert emulsion drilling fluid are also provided.

公开(公告)号：US20220267664A1

公开(公告)日：2022-08-25

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 ,  C09K8/504 ,  E21B33/138 ,  E21B21/00

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：US11370955B2

公开(公告)日：2022-06-28

申请号：US16867270

申请日：2020-05-05

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Abdullah Al-Yami ,  Zainab Alsaihati ,  Abdulaziz Alhelal

IPC: C09K8/467 ,  C09K8/04 ,  E21B36/00 ,  E21B33/138 ,  E21B33/14 ,  C09K8/42

Abstract: A method to control a heat transfer profile in a defined space, the method comprising the steps of introducing a thermally insulating packer fluid into the defined space such that the thermally insulating packer fluid forms a gelled solid and reduces a rate of heat transfer through the defined space as compared to a prior rate of heat transfer through the defined space before introducing the thermally insulating packer fluid, where the thermally insulating packer fluid comprises an acidic nanosilica dispersion and a polyamine.

公开(公告)号：US11352546B2

公开(公告)日：2022-06-07

申请号：US16998500

申请日：2020-08-20

Applicant: Saudi Arabian Oil Company

Inventor： Vikrant Wagle ,  Rajendra Kalgaonkar ,  Abdullah Al-Yami ,  Zainab Alsaihati

IPC: C09K8/32 ,  C09K8/508 ,  C09K8/504 ,  C04B28/24 ,  C09K8/516 ,  C04B28/26 ,  C09K8/506 ,  C01B32/20 ,  C01B33/141 ,  C01F11/18 ,  C08G63/08 ,  C09K8/03

Abstract: A lost circulation material (LCM) is provided having an alkaline nanosilica dispersion and an ester activator. The alkaline nanosilica dispersion and the ester activator may form a gelled solid after interaction over a contact period. Methods of lost circulation control using the LCM are also provided.

公开(公告)号：US11352541B2

公开(公告)日：2022-06-07

申请号：US16117902

申请日：2018-08-30

Applicant: Saudi Arabian Oil Company

Inventor： Abdullah Al-Yami ,  Ali Alsafran ,  Vikrant Wagle ,  Hussain Albahrani ,  Zainab Alsaihati

IPC: C09K8/44 ,  E21B33/138 ,  E21B33/14 ,  C04B26/14 ,  C04B28/04 ,  C09K8/46 ,  E21B21/00 ,  C04B103/10

Abstract: A sealing composition for sealing an annulus of a wellbore includes from 20 weight percent to 97 weight percent epoxy resin based on the total weight of the composition. The epoxy resin comprising at least one of 2,3-epoxypropyl o-tolyl ether, alkyl glycidyl ethers having from 12 to 14 carbon atoms, or a compound having formula (OC2H3)—CH2—O—R1—O—CH2—(C2H3O), where R1 is a linear or branched hydrocarbyl having from 4 to 24 carbon atoms. The sealing composition also includes from 1 weight percent to 20 weight percent curing agent based on the total weight of the composition. Methods for sealing a wellbore annulus or casing-casing annulus includes introducing a spacer fluid to the wellbore, introducing the sealing composition to the wellbore, displacing the sealing composition into the annulus, and curing the sealing composition.