公开(公告)号：US12168922B2

公开(公告)日：2024-12-17

申请号：US18363003

申请日：2023-08-01

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani

IPC: E21B43/267 ,  C09K8/80

Abstract: Tuning fracture hydraulic conductivity can be provided so that high hydraulic conductivity in high temperature zones and low hydraulic conductivity in low temperature zones can be defined in enhanced geothermal systems (EGS). Uniform thermal gradient along flow paths can be provided or defined to help provide such conductivity zones. Experimentation performed to evaluate embodiments showed that embodiments could prevent appearance of dominant flow paths between the wells and maintain high heat extraction rates. Embodiments can greatly increase cumulative heat extraction. Embodiments can also be provided for application solely to the injection wells. Other embodiments can position tuning agents between the wells and still help provide control of the fluid flow in the reservoir and enhance heat extraction.

公开(公告)号：US20240392179A1

公开(公告)日：2024-11-28

申请号：US18695840

申请日：2022-10-04

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani ,  Seyedeh Maryam Tabatabaei

IPC: C09K8/42 ,  E21B21/00 ,  E21B33/138 ,  F03G7/06

Abstract: Embodiments relate to a lost circulation material comprising a plurality of shape memory polymer members, each member having a temporary shape and a permanent shape. The members may be programmed to form a temporary shape that is small enough to be used with conventional drilling equipment and may further transform to corresponding permanent shapes to plug fractures. Specifically, the shape memory polymer-based lost circulation material can utilize self-assembly to plug fractures formed during drilling. Embodiments of the lost circulation material can be particularly useful for plugging large fractures. Permanent shapes present different topologies including granular, fibers, and two-dimensional networks/lattices in which can mechanically interlock and form a three-dimensional plug large enough to seal large width fractures.

公开(公告)号：US20250059871A1

公开(公告)日：2025-02-20

申请号：US18938602

申请日：2024-11-06

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani

IPC: E21B43/267 ,  C09K8/80

Abstract: Tuning fracture hydraulic conductivity can be provided so that high hydraulic conductivity in high temperature zones and low hydraulic conductivity in low temperature zones can be defined in enhanced geothermal systems (EGS). Uniform thermal gradient along flow paths can be provided or defined to help provide such conductivity zones. Experimentation performed to evaluate embodiments showed that embodiments could prevent appearance of dominant flow paths between the wells and maintain high heat extraction rates. Embodiments can greatly increase cumulative heat extraction. Embodiments can also be provided for application solely to the injection wells. Other embodiments can position tuning agents between the wells and still help provide control of the fluid flow in the reservoir and enhance heat extraction.

公开(公告)号：US20240102372A1

公开(公告)日：2024-03-28

申请号：US18363003

申请日：2023-08-01

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani

IPC: E21B43/267 ,  C09K8/80

CPC classification number: E21B43/267 ,  C09K8/80

Abstract: Tuning fracture hydraulic conductivity can be provided so that high hydraulic conductivity in high temperature zones and low hydraulic conductivity in low temperature zones can be defined in enhanced geothermal systems (EGS). Uniform thermal gradient along flow paths can be provided or defined to help provide such conductivity zones. Experimentation performed to evaluate embodiments showed that embodiments could prevent appearance of dominant flow paths between the wells and maintain high heat extraction rates. Embodiments can greatly increase cumulative heat extraction. Embodiments can also be provided for application solely to the injection wells. Other embodiments can position tuning agents between the wells and still help provide control of the fluid flow in the reservoir and enhance heat extraction.

公开(公告)号：US20240417521A1

公开(公告)日：2024-12-19

申请号：US18698567

申请日：2022-10-26

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani ,  Seyedeh Maryam Tabatabaei

IPC: C08J3/20 ,  C08J3/16 ,  C08J9/00 ,  C08K9/04

Abstract: A method of fabricating a composite material can include adding particulate material to an elastomeric material. The particulate material can include expanded graphite particulates and/or graphite nanoplatelet particulates. The particulate material can be diffused within the elastomeric material to uniformly disperse the particulate material within the elastomeric material. The elastomeric material having the particulate material dispersed therein can then be cured after the diffusing to form a structure comprised of the composite material, the composite material including the elastomeric material and the particulate material. In some embodiments, surfaces of the particulate material can be modified to include carboxyl and hydroxyl groups before the particulate material is added to the elastomeric material to facilitate improved bonding of the particulate material. In some embodiments, the formed structure can be configured as or for use in a gasket, seal, vibration dampening device or sound reduction device.

公开(公告)号：US20230193110A1

公开(公告)日：2023-06-22

申请号：US18172697

申请日：2023-02-22

Applicant: THE PENN STATE RESEARCH FOUNDATION

Inventor： Arash Dahi Taleghani ,  Seyedeh Maryam Tabatabaei

IPC: C09K8/467 ,  C09K8/42

CPC classification number: C09K8/467 ,  C09K8/426 ,  C09K2208/10

Abstract: Embodiments relate to use of graphite nanoplatelets (GnP) to enhance the mechanical and durability characteristics of cement that may be used as cement sheaths in wellbores of oil and gas wells. Generally, undesired permeability of cement is caused by diffusion of trapped oil and/or natural gas through the cementitious matrix of the cement, leading to material degradation of the cement. Methods disclosed involve using modified GnPs (having physically modified surfaces or chemically modified surfaces energies) to generate a cementitious nanocomposite with uniformly dispersed GnPs, which can effectively arrest the undesired diffusion mechanism. Modified GnPs can also increase the strength of interfacial adhesion (e.g., interfacial bonds and interfacial energies) between the GnP and the cement matrix (e.g., hydrations of the cement). Physical modification of GnP can involve non-covalent treatment techniques. Chemical modification of GnP can involve covalent treatment techniques.

公开(公告)号：US11618843B2

公开(公告)日：2023-04-04

申请号：US16836414

申请日：2020-03-31

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani ,  Seyedeh Maryam Tabatabaei

IPC: C09K8/467 ,  C09K8/42

Abstract: Embodiments relate to use of graphite nanoplatelets (GnP) to enhance the mechanical and durability characteristics of cement that may be used as cement sheaths in wellbores of oil and gas wells. Generally, undesired permeability of cement is caused by diffusion of trapped oil and/or natural gas through the cementitious matrix of the cement, leading to material degradation of the cement. Methods disclosed involve using modified GnPs (having physically modified surfaces or chemically modified surfaces energies) to generate a cementitious nanocomposite with uniformly dispersed GnPs, which can effectively arrest the undesired diffusion mechanism. Modified GnPs can also increase the strength of interfacial adhesion (e.g., interfacial bonds and interfacial energies) between the GnP and the cement matrix (e.g., hydrations of the cement). Physical modification of GnP can involve non-covalent treatment techniques. Chemical modification of GnP can involve covalent treatment techniques.

公开(公告)号：US20200308469A1

公开(公告)日：2020-10-01

申请号：US16836414

申请日：2020-03-31

Applicant: The Penn State Research Foundation

Inventor： Arash Dahi Taleghani ,  Seyedeh Maryam Tabatabaei

IPC: C09K8/467 ,  C09K8/42

Abstract: Embodiments relate to use of graphite nanoplatelets (GnP) to enhance the mechanical and durability characteristics of cement that may be used as cement sheaths in wellbores of oil and gas wells. Generally, undesired permeability of cement is caused by diffusion of trapped oil and/or natural gas through the cementitious matrix of the cement, leading to material degradation of the cement. Methods disclosed involve using modified GnPs (having physically modified surfaces or chemically modified surfaces energies) to generate a cementitious nanocomposite with uniformly dispersed GnPs, which can effectively arrest the undesired diffusion mechanism. Modified GnPs can also increase the strength of interfacial adhesion (e.g., interfacial bonds and interfacial energies) between the GnP and the cement matrix (e.g., hydrations of the cement). Physical modification of GnP can involve non-covalent treatment techniques. Chemical modification of GnP can involve covalent treatment techniques.