公开(公告)号：US20230242758A1

公开(公告)日：2023-08-03

申请号：US17649505

申请日：2022-01-31

Applicant: ARAMCO SERVICES COMPANY

Inventor： Wenwen Li ,  Fakuen Frank Chang ,  Feng Liang

IPC: C08L75/04 ,  C08G18/10 ,  C08G18/18 ,  C08G18/22 ,  C08G18/08

CPC classification number: C08L75/04 ,  C08G18/10 ,  C08G18/18 ,  C08G18/22 ,  C08G18/14 ,  C08G18/0866 ,  C08G2101/00

Abstract: A composition that includes porous polyurethane particles is provided. The porous particles are formed by curing an isocyanate component with water in the presence of a polyester filler and a hydrocarbon phase. A method for the preparation of porous polyurethane particles is also provided. The method includes providing a dispersed medium that contains a hydrocarbon phase, water, and a polyester filler. Then, an isocyanate component that is immiscible with the hydrocarbon phase may be added to the dispersed medium to form polyurethane prepolymer droplets, that may be cured by the water in the medium. An additional method for porous polymer particle preparation that includes providing a dispersed medium comprising a hydrocarbon phase, an isocyanate component that is immiscible in the hydrocarbon phase, and a polyester filler is provided. The dispersed medium may be agitated to form polyurethane prepolymer droplets, that may be cured by adding water.

公开(公告)号：US10669472B2

公开(公告)日：2020-06-02

申请号：US15908970

申请日：2018-03-01

Applicant: Saudi Arabian Oil Company ,  Aramco Services Company

Inventor： Feng Liang ,  Ghaithan Al-Muntasheri ,  Abdulrahman F. Alharbi

IPC: C09K8/68 ,  C09K8/90 ,  C09K8/84 ,  C09K8/88 ,  C09K8/66 ,  C09K8/80

Abstract: A composition for use as a pressure-tolerant dual-crosslinker gel in a fracturing fluid that comprises polymer, the polymer operable to increase the viscosity of a fluid; boron-containing crosslinker, the boron-containing crosslinker operable to crosslink the polymer; and a transition metal oxide additive, the transition metal oxide additive operable to crosslink the polymer.

公开(公告)号：US10131834B2

公开(公告)日：2018-11-20

申请号：US15922489

申请日：2018-03-15

Applicant: Aramco Services Company ,  Research Foundation of The City University of New York

Inventor： Feng Liang ,  Ghaithan A. Al-Muntasheri ,  Leiming Li ,  B. Raghava Reddy ,  George John ,  Vidyasagar Adiyala

IPC: C09K8/80 ,  C09K8/70 ,  E21B43/267 ,  C09K8/60

Abstract: Self-suspending proppants including proppant particles coated with a CO2-philic coating are provided. The CO2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

公开(公告)号：US10131833B2

公开(公告)日：2018-11-20

申请号：US15922480

申请日：2018-03-15

Applicant: Aramco Services Company ,  Research Foundation of The City University of New York

Inventor： Feng Liang ,  Ghaithan A. Al-Muntasheri ,  Leiming Li ,  B. Raghava Reddy ,  George John ,  Vidyasagar Adiyala

IPC: C09K8/80 ,  C09K8/70 ,  E21B43/267 ,  C09K8/60

Abstract: Self-suspending proppants including proppant particles coated with a CO2-philic coating are provided. The CO2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.

公开(公告)号：US20180230371A1

公开(公告)日：2018-08-16

申请号：US15922480

申请日：2018-03-15

Applicant: Aramco Services Company ,  Research Foundation of The City University of New York

Inventor： Feng Liang ,  Ghaithan A. Al-Muntasheri ,  Leiming Li ,  B. Raghava Reddy ,  George John ,  Vidyasagar Adiyala

IPC: C09K8/80 ,  E21B43/267

CPC classification number: C09K8/805 ,  C09K8/607 ,  C09K8/70 ,  E21B43/267

Abstract: Self-suspending proppants including proppant particles coated with a CO2-philic coating are provided. The CO2-philic coating may be lightly crosslinked and may have a physical structure that constrains CO2 molecules. Methods of making self-suspending proppants may include coating a proppant particle with a polymerizable precursor material of a CO2-philic material and polymerizing the polymerizable precursor material to form a self-suspending proppant are also provided. Additionally, hydraulic fracturing fluids that may include a CO2-based fluid and the self-suspending proppants and methods of treating subterranean formations by contacting a subterranean formation with hydraulic fracturing fluid and propagating at least one subterranean fracture are provided.