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公开(公告)号：US20210189219A1
公开(公告)日：2021-06-24
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 , C09K8/504 , E21B33/138 , E21B21/00
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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公开(公告)号：US10689559B2
公开(公告)日：2020-06-23
申请号：US15924942
申请日：2018-03-19
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 Alalhareth , 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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13.发明申请公开(公告)号：US20200071598A1
公开(公告)日：2020-03-05
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：US20200017749A1
公开(公告)日：2020-01-16
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
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：US20190375700A1
公开(公告)日：2019-12-12
申请号：US16006225
申请日：2018-06-12
Applicant: Saudi Arabian Oil Company
Inventor： Abdullah Al-Yami , Vikrant Wagle , Zainab Alsaihati , Ali Alsafran , Nasser Alalhareth , Abdulaziz Alhelal
Abstract: A method of synthesizing sodium formate. The method includes reacting acetaldehyde, formaldehyde, and NaOH to form a raw reaction solution which includes pentaerythritol and sodium formate. The method also includes passing the raw reaction solution to an evaporator to reduce the water content of the raw reaction solution and remove any unreacted formaldehyde from the raw reaction solution to form a concentrated reaction solution and cooling the concentrated reaction solution to form pentaerythritol crystals in suspension while retaining sodium formate in solution. Further, the method includes filtering the cooled concentrated reaction solution to remove the pentaerythritol crystals and create a mother liquor comprising the sodium formate in solution and separating the sodium formate from the mother liquor.
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Patent Agency Ranking
公开(公告)号：US12291670B2
公开(公告)日：2025-05-06
申请号：US18166343
申请日：2023-02-08
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Khawlah A. Alanqari , Abdullah Al-Yami , Vikrant Wagle , Ali Alsafran
Abstract: Compositions may include a calcium lignosulfonate salt having a chemical structure (I), wherein a total number of syringyl groups is 2 to 10. The compositions may further include an alcohol, an aldehyde, and water. Cement slurries may include a lignosulfonate-based cement dispersant including a calcium lignosulfonate salt having a chemical structure (I), an alcohol, an aldehyde, and water, wherein a total number of syringyl groups in the chemical structure (I) is 2 to 10. The cement slurries may further include a cement and water. Methods may include introducing a cement slurry into a wellbore penetrating a subterranean formation, wherein the cement slurry comprises a lignosulfonate-based cement dispersant, a cement, and water, and allowing the cement slurry to set to a concrete in a downhole zone of interest.
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公开(公告)号：US12116526B1
公开(公告)日：2024-10-15
申请号：US18189899
申请日：2023-03-24
Applicant: SAUDI ARABIAN OIL COMPANY
Inventor： Vikrant Wagle , Jothibasu Ramasamy , Ali Alsafran , Abdulla Al-Awadh , Abdullah S. Al-Yami
CPC classification number: C09K8/518 , C09K8/035 , C09K8/5083 , E21B21/003
Abstract: Methods and compositions including introducing a lost circulation material to a zone of interest in a subterranean formation via a wellbore, the zone of interest comprising depleted zones, zones of low pressure, lost circulation zones, fractured zones, and any combination thereof; wherein the lost circulation material comprises an epoxidized linear α-olefin; a surfactant; a curing agent; and a carbon dioxide gas-generating compound comprising sodium bicarbonate; heating the lost circulation material; and allowing the epoxidized linear α-olefin to polymerize to a resin and the carbon dioxide gas-generating compound to produce a gas to form a foamed resin in the zone of interest, thereby mitigating a flow of fluids from the wellbore into the subterranean formation.
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公开(公告)号：US11535787B2
公开(公告)日：2022-12-27
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：US20220332644A1
公开(公告)日：2022-10-20
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
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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20.发明授权公开(公告)号：US10995256B2
公开(公告)日：2021-05-04
申请号：US16809892
申请日：2020-03-05
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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