公开(公告)号：WO2022053991A1

公开(公告)日：2022-03-17

申请号：PCT/IB2021/058230

申请日：2021-09-10

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY ,  ABU DHABI NATIONAL OIL COMPANY ,  ABU DHABI COMPANY FOR OFFSHORE PETROLEUM OPERATIONS LIMITED

Inventor： AL-FARISI, Omar Usama Abdul Latif ,  ZHANG, TieJun ,  OUZZANE, Djamel ,  SASSI, Mohamed ,  ALMEHAIRBI, Saoud ,  AL-RIYAMI, Ahmed ,  AL HAMMADI, Hamdan ,  IBRAHIM, Khalil ,  RAZA, Aikifa

IPC: G01N15/08

Abstract: Methods and systems are disclosed to determine a permeability value and a permeability image of a rock. The process can include determining labeling of a 3D segment of a rock. The labeled segments can be determined using, for example, computer vision and machine learning and can be used to determine a grain size of a 3D rock segments. The grain size value can be used to determine a permeability value for the 3D rock segment. The permeability value of the 3D rock segment can be used to determine the heterogeneous permeability of the rock.

公开(公告)号：WO2021161259A1

公开(公告)日：2021-08-19

申请号：PCT/IB2021/051199

申请日：2021-02-12

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ZHANG, Tiejun ,  RAZA, Aikifa ,  ALKETBI, Afra S. ,  DEVARAPALLI, Rajakumar ,  LI, Hongxia

IPC: F24S70/25 ,  C23C14/06 ,  C23C14/14 ,  C23C14/34 ,  C23C14/24 ,  C22C28/00 ,  F24S10/00

Abstract: Aspects of the disclosure include a multilayer surface-covering assembly adapted to convert solar radiation to heat. The multilayer surface-covering assembly may include a first composite layer comprising a first amorphous refractory material and first metal nanoparticles, wherein the first amorphous refractor material encapsulates the first metal nanoparticles, and wherein the first composite layer is thermally coupled with a surface of a structure for conduction of heat from the first composite layer to the structure. The multilayer surface-covering assembly may also include an antireflective layer, wherein the first composite layer is disposed between the antireflective layer and the surface of the structure.

公开(公告)号：WO2023067479A1

公开(公告)日：2023-04-27

申请号：PCT/IB2022/059954

申请日：2022-10-17

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ZHANG, TieJun ,  ALKETBI, Afra Saeed ,  RAZA, Aikifa

IPC: C08F2/10 ,  C09D11/02 ,  C09D11/101

Abstract: A method of printing a hydrogel-based device includes contacting a monomer, a crosslinker, a photoinitiator, and a precursor salt with a solvent to form an ink solution, printing the ink solution onto a substrate, exposing the ink solution to light, sufficient to form a hydrogel, and contacting the hydrogel with a reducing agent sufficient to precipitate nanoparticles from the precursor salt in the hydrogel.

公开(公告)号：WO2020260962A1

公开(公告)日：2020-12-30

申请号：PCT/IB2020/053826

申请日：2020-04-22

Applicant: KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： ZHANG, Tiejun ,  LI, Hongxia ,  RAZA, Aikifa

IPC: C08J7/06 ,  B29C64/188 ,  C30B28/04

Abstract: Methods of preparing a mineral-coated rock micromodel can include 3D-printing a transparent porous micromodel with photo-curable polymer, seeding a thin layer of mineral nanoparticles in the network of pores inside the micromodel, and subsequently growing a mineral layer on the thin layer of mineral nanoparticles. The thin layer of mineral nanoparticles can be introduced by injecting a suspension containing the mineral nanoparticles through the microporous polymer micromodel, and the mineral layer can be grown in-situ on the thin layer of mineral nanoparticles in the network of pores by injecting an ion-rich solution configured to crystallize from solution in response to contacting the mineral nanoparticles.

公开(公告)号：EP3990527A1

公开(公告)日：2022-05-04

申请号：EP20831848.5

申请日：2020-04-22

Applicant: Khalifa University of Science and Technology

Inventor： ZHANG, Tiejun ,  LI, Hongxia ,  RAZA, Aikifa

IPC: C08J7/06 ,  B29C64/188 ,  C30B28/04