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公开(公告)号：US20220363971A1
公开(公告)日：2022-11-17
申请号：US17317998
申请日：2021-05-12
Applicant: Saudi Arabian Oil Company
Inventor： Sara Abdulaziz Alkhalaf , Abdullah Al-Yami , Vikrant Wagle , Ali Alsafran
Abstract: According to one or more embodiments of the present disclosure, a spacer fluid includes an aqueous fluid, a weighting agent, 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 0.1 wt. % to 10 wt. % relative to the total weight of the spacer fluid. The average molecular weight of the polyethylene polyamines in the spacer fluid having the first structure may be from 200 g/mol to 400 g/mol. All of the polyethylene polyamines in the spacer fluid having the first structure may be encompassed in the clay stabilizer. Methods for cementing a casing in a wellbore using the spacer fluid are also disclosed.
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公开(公告)号：US11332656B2
公开(公告)日：2022-05-17
申请号：US16718716
申请日：2019-12-18
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah S. Al-Yami , Vikrant Wagle , Ali Alsafran , Khawlah A. Alanqari , Sara A. Alkhalaf
IPC: E21B33/138 , C09K8/508 , C08L63/00 , E21B21/00
Abstract: A lost circulation material (LCM) composition for sealing lost circulation zones in wellbores may include 50 weight percent to 97 weight percent epoxy resin, 2 weight percent to 30 weight percent curing agent, 0.1 weight percent to 40 weight percent weighting material, and 0.1 weight percent to 20 weight percent amide accelerator. The LCM composition may have a density of greater than or equal to 1121 kilograms per cubic meter and may be capable of being injected through a drill bit of a drill string into the lost circulation zone. The amide accelerator may enable the viscosity of the LCM composition to be reduced while providing a reduced cure time. The LCM compositions are suitable for treating high-injectivity lost circulation zones.
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公开(公告)号：US10655045B2
公开(公告)日：2020-05-19
申请号：US16582467
申请日：2019-09-25
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah Al-Yami , Vikrant Wagle , Hussain Albahrani , Zainab Alsaihati , Antonio Santagati , Mohammad Al-Alqam , Ali Alsafran , Abdulaziz Alhelal , Nasser Alhareth , Abdullah Al-Awadh
Abstract: According to at least one embodiment of the present description, a cement slurry includes 1% to 90% BWOC of a cement precursor material based on the total weight of the cement slurry; and from 1% to 40% BWOC of a swelling additive based on the total weight of the cement slurry. The swelling additive comprises at least one micronized rubber, at least one distillate, and at least one solvent-refined heavy paraffinic.
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公开(公告)号：US11326087B2
公开(公告)日：2022-05-10
申请号：US16906607
申请日：2020-06-19
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.
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公开(公告)号：US20200317983A1
公开(公告)日：2020-10-08
申请号：US16906607
申请日：2020-06-19
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah Al-Yami , Ali Alsafran , Vikrant Wagle , Hussain Albahrani , Zainab Alsaihati
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.
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Patent Agency Ranking
公开(公告)号：US10696888B2
公开(公告)日：2020-06-30
申请号：US16117950
申请日：2018-08-30
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah Al-Yami , Ali Alsafran , Vikrant Wagle , Zainab Alsaihati
Abstract: A lost circulation material (LCM) composition for sealing a lost circulation zone in a wellbore is disclosed that includes from 50 weight percent to 97 weight percent epoxy resin and from 2 weight percent to 30 weight percent curing agent. The epoxy resin may include at least one of 2,3-epoxypropyl o-tolyl ether, alkyl glycidyl ethers having from 12 to 14 carbon atoms, bisphenol-A-epichlorohydrin epoxy resin, 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. A method for isolating a lost circulation zone using the LCM compositions is also disclosed and includes introducing a spacer fluid to the lost circulation zone, introducing the LCM composition to the lost circulation zone, and curing the LCM composition in the lost circulation zone to isolate the lost circulation zone.
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公开(公告)号：US20190330512A1
公开(公告)日：2019-10-31
申请号：US15964420
申请日：2018-04-27
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah Al-Yami , Vikrant Wagle , Hussain Albahrani , Zainab Alsaihati , Antonio Santagati , Mohammad Al-Alqam , Ali Alsafran , Abdulaziz Alhelal , Nasser Alhareth , Abdullah Al-Awadh
IPC: C09K8/44
Abstract: According to at least one embodiment of the present description, a cement slurry includes 1% to 90% BWOC of a cement precursor material based on the total weight of the cement slurry; and from 1% to 40% BWOC of a swelling additive based on the total weight of the cement slurry. The swelling additive comprises at least one micronized rubber, at least one distillate, and at least one solvent-refined heavy paraffinic.
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公开(公告)号：US20190284465A1
公开(公告)日：2019-09-19
申请号：US16265358
申请日：2019-02-01
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah Al-Yami , Vikrant Wagle , Hussain Albahrani , Zainab Alsaihati , Antonio Santagati , Mohammad Al-Alqam , Ali Alsafran , Abdulaziz Alhelal , Nasser Alhareth , Abdullah Al-Awadh
Abstract: According to at least one embodiment of the present description, a cement slurry includes 50% to 90% BWOC of a cement precursor material based on a total weight of the cement slurry; and from 10% to 50% BWOC of a flexible additive based on the total weight of the cement slurry. The flexible additive includes hydrophilic polyolefin fibers or 2,6-di-tert-butyl-p-cresol.
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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.
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公开(公告)号：US11370956B2
公开(公告)日：2022-06-28
申请号：US16718784
申请日：2019-12-18
Applicant: Saudi Arabian Oil Company
Inventor： Khawlah A. Alanqari , Abdullah Al-Yami , Vikrant Wagle , Ali Alsafran
IPC: C09K8/508 , C08L63/00 , E21B21/00 , E21B33/138 , C09K8/504
Abstract: Lost circulation material (LCM) compositions for sealing lost circulation zones in wellbores may include an epoxy resin, a curing agent, an amide accelerator, and calcium carbonate having an average particle size of from 1,000 microns to 10,000 micron. The epoxy resin includes at least one of 2,3-epoxypropyl-o-tolyl ether, C12-C14 alkyl glycidyl ether, 1,6-hexanediol diglycidyl ether, butyl glycidyl ether, or cyclohexanedimethanol diglycidyl ether. The epoxy resin can also include bisphenol-A-epichlorohydrin epoxy resin. Methods of treating a lost circulation zone of a wellbore include injecting the LCM compositions into the lost circulation zone and curing the LCM compositions, where the LCM compositions include an epoxy resin, a curing agent, an amide accelerator, and calcium carbonate having an average particle size of from 1,000 microns to 10,000 microns.
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