Abstract: A method for enhancing or restoring adhesion to cells that have partially or completely loss the ability to adhere to a substrate or other cells using nanosized clay crystallites.
Type:
Grant
Filed:
January 23, 2018
Date of Patent:
September 3, 2024
Assignee:
King Fahd University of Petroleum and Minerals
Inventors:
Sahel Nishat Abduljauwad, Habib-ur-Rehman Ahmed
Abstract: The invention relates to the field of oilfield chemistry, and discloses a self-repairing plugging gel polymer for drilling fluid, a preparation method and application thereof, and the drilling fluid containing the gel polymer, wherein the polymer contains a structural unit A, a structural unit B, a structural unit C and a structural unit D, and the structural unit A is a structural unit with a structure shown in the formula (1); the structural unit B is a structural unit with a structure shown in the formula (2); the structural unit C is a structural unit with a structure shown in the formula (3); the structural unit D is a structural unit having a structure represented by the formula (4).
Abstract: Anti-corrosion and low-heat-conduction annulus protection fluid for deep-sea oil and gas exploitation and a preparation method thereof are provided. The annulus protection fluid includes: a polymer solution: 100 parts, clear water III: 100 parts to 500 parts, a thermally-insulating material: 20 parts, a corrosion inhibitor: 1 part to 7 parts, and xanthan gum: 0.3 parts to 0.5 parts, wherein the polymer solution is a mixture of a polymer and clear water II in a mass ratio of 1:(22-28); and the polymer includes the following raw materials: clear water I: 100 parts, an acrylamide: 15 parts to 20 parts, 2-2-methylpropanesulfonic acid: 5 parts to 10 parts, a crosslinking agent: 0.1 parts to 0.3 parts, and an initiator: 0.5 parts to 1 part. The annulus protection fluid exhibits excellent thermal insulation performance and corrosion resistance, and avoids the generation of hydrates and the decomposition of hydrate layers at a wellhead.
Type:
Grant
Filed:
February 5, 2024
Date of Patent:
August 27, 2024
Assignees:
Qingdao University of Technology, China University of Petroleum (East China)
Inventors:
Chang Lu, Yuhuan Bu, Shaorui Jing, Shenglai Guo, Huajie Liu, Heng Yang
Abstract: An indirect evaporative cooling system for cooling a space adjacent to or containing an ablution bay is described. The indirect evaporative cooling system includes a greywater source from the ablution bay and evaporative cooler apparatus located above the space to be cooled in a dome shaped housing. The evaporative cooler apparatus includes a wet channel, at least one spray nozzle, and a dry channel. The at least one spray nozzle is located at the top of the evaporative cooler apparatus and is fluidly connected to the greywater source and the wet channel. The wet channel is located directly above the dry channel. A first side of the dry channel is connected to a first opening with a fan and outside air.
Type:
Application
Filed:
March 13, 2024
Publication date:
August 22, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Inventors:
Faisal Bader ALMUTAIRI, Fahad Abdulaziz ALSULAIMAN, Nasiru Ishaq IBRAHIM
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
Type:
Application
Filed:
March 29, 2024
Publication date:
August 22, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
Type:
Application
Filed:
March 29, 2024
Publication date:
August 22, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Abstract: Hydraulic fracturing fluids include an aqueous fluid, an acrylamide-based polymer, and a crosslinker that crosslinks the acrylamide-based polymer to form a crosslinked gel. The crosslinker includes a cellulose backbone functionalized with branch structures. The branch structures comprise oxiranylalkanol branches or polyoxiranylalkanol branches. Methods for preparing the hydraulic fracturing fluids and methods for treating subterranean formations with the hydraulic fracturing fluids are disclosed.
Type:
Grant
Filed:
April 3, 2023
Date of Patent:
August 20, 2024
Assignees:
Saudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
Inventors:
Wengang Li, Bader Ghazi Al-Harbi, Majad Khan, Muhammad Nawaz Tahir
Abstract: A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well that involves treating the oil and gas well with an acidic treatment fluid that includes 10 to 28 wt. % of an acid, based on a total weight of the acidic treatment fluid, and a corrosion inhibitor composition containing gelatin, wherein the gelatin is present in the acidic treatment fluid in a concentration of 0.1 to 10% by weight per total volume of the acidic treatment fluid.
Type:
Application
Filed:
March 29, 2024
Publication date:
August 15, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Abstract: The present disclosure discloses a combined apparatus for experimentation on different storage modes of carbon dioxide, which comprises a displacement device, a storage reaction device and a measuring device, wherein the displacement device comprises a displacement pump, and an intermediate oil-water container and an intermediate carbon dioxide container that are arranged in parallel, the displacement pump is connected to a first end of the parallel connection of the intermediate oil-water container and the intermediate carbon dioxide container, and an inlet end of the storage reaction device is connected to a second end of the parallel connection of the intermediate oil-water container and the intermediate carbon dioxide container; the measuring device comprises a weigher, a first pressure detector, a gas-liquid separator, a gas meter and a mineral analyzer, wherein the first pressure detector is arranged in the intermediate oil-water container, and the gas-liquid separator is connected to the outlet end of
Type:
Application
Filed:
December 12, 2023
Publication date:
August 8, 2024
Applicant:
China University of Petroleum (Beijing)
Abstract: A method for realizing balanced displacement of crude oil by injection and production optimization coordinated chemical flooding which comprises the following steps: determining the median size and elastic modulus of viscoelastic particles according to the average permeability of the reservoir; optimizing the concentration ratio of the total concentration of the chemical agent; the physical parameters of each layer are counted, and the hierarchical system is combined according to the entropy weight algorithm and the cluster analysis method based on the gravity center method; the optimal section slug volume ratio of the single well injected with two slugs under the heterogeneity of the permeability of the strata is calculated; and the objective function is established by combining the coefficient of variation of remaining oil saturation, the effect of chemical flooding and the cost, and the numerical simulator is used to optimize the objective function.
Type:
Grant
Filed:
March 31, 2021
Date of Patent:
August 6, 2024
Assignees:
China University of Petroleum (East China), Shandong University of Science and Technology
Inventors:
Jian Hou, Kang Zhou, Qingjun Du, Yongge Liu, Yueliang Liu, Bei Wei, Dong Zhao, Zhibin An, Dejun Wu
Abstract: A deep-water drilling gas kick pilot-scale apparatus, including: a simulation wellbore having an upper wellbore transitioned to a lower wellbore through a variable cross section; a drilling tool with an annular space formed between the drilling tool and the simulation wellbore; a gas-injection system, comprising an air compressor and a gas-injection pipeline; a mud circulation system, comprising a mud supply source, a first pump, a second pump, and a mud-return pipeline; a Coriolis mass flowmeter provided on the mud-return pipeline; a Doppler sensor installed on the upper wellbore; and a built-in pressure gauge carrier connected between a drill pipe and a drill bit.
Abstract: An indirect evaporative cooling system for cooling a space adjacent to or containing an ablution bay is described. The indirect evaporative cooling system includes a greywater source from the ablution bay and evaporative cooler apparatus located above the space to be cooled in a dome shaped housing. The evaporative cooler apparatus includes a wet channel, at least one spray nozzle, and a dry channel. The at least one spray nozzle is located at the top of the evaporative cooler apparatus and is fluidly connected to the greywater source and the wet channel. The wet channel is located directly above the dry channel. A first side of the dry channel is connected to a first opening with a fan and outside air.
Type:
Application
Filed:
March 13, 2024
Publication date:
July 18, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Inventors:
Faisal Bader ALMUTAIRI, Fahad Abdulaziz ALSULAIMAN, Nasiru Ishaq IBRAHIM
Abstract: An indirect evaporative cooling system for cooling a space adjacent to or containing an ablution bay is described. The indirect evaporative cooling system includes a greywater source from the ablution bay and evaporative cooler apparatus located above the space to be cooled in a dome shaped housing. The evaporative cooler apparatus includes a wet channel, at least one spray nozzle, and a dry channel. The at least one spray nozzle is located at the top of the evaporative cooler apparatus and is fluidly connected to the greywater source and the wet channel. The wet channel is located directly above the dry channel. A first side of the dry channel is connected to a first opening with a fan and outside air.
Type:
Application
Filed:
March 13, 2024
Publication date:
July 18, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Inventors:
Faisal Bader ALMUTAIRI, Fahad Abdulaziz ALSULAIMAN, Nasiru Ishaq IBRAHIM
Abstract: A catalyst system is disclosed. The catalyst system may include a pre-catalyst and a co-catalyst. The pre-catalyst includes one or more chromium compounds coordinated with a ligand. The co-catalyst includes one or more organoaluminum compounds, wherein: the ligand has a structure according to formula (I): In formula (I), R1, R2, R3, and R4 are independently chosen from (C6-C60) aryl, optionally substituted with one or more RS, wherein RS is a (C1-C50) hydrocarbyl or a (C1-C50) heterohydrocarbyl. In formula (I), R5 is a (C9-C60) aryl or a (C4-C60) heteroaryl, optionally substituted with one or more RS, wherein RS is a (C1-C50) hydrocarbyl or a (C1-C50) heterohydrocarbyl, provided that R5 is not naphthyl or triptycenyl.
Type:
Grant
Filed:
December 20, 2022
Date of Patent:
July 16, 2024
Assignees:
King Fahd University of Petroleum and Minerals, Saudi Arabian Oil Company
Abstract: This disclosure relates to the technical field of exploration geophysics, in particular to a method, a device, and a computer device for decoupling anisotropic elastic wave. The method includes: determining a set of Thomsen parameters included in an anisotropic model based on a received to-be-decomposed wave field decomposition request; transforming the set of Thomsen parameters to obtain a set of initial elastic parameters; performing S-wave and P-wave velocities separation processing for the set of initial elastic parameters to obtain a set of target P-wave elastic parameters and a set of target S-wave elastic parameters; and substituting those into the anisotropic model to process the to-be-decomposed wave field and obtain a target P-wave matrix and a target S-wave matrix. The process of decomposing S-wave and P-wave fields is simplified and the calculation cost is reduced according to the embodiments of this disclosure.
Type:
Application
Filed:
October 24, 2023
Publication date:
July 11, 2024
Applicant:
China University of Petroleum (East China)
Inventors:
Qizhen DU, Shihao ZHOU, Zhaoshun LIU, Wenhao LYU, Li-Yun FU
Abstract: A method of removing a sulfate scale from a surface is provided. The method includes contacting the sulfate-comprising scale with a conversion solution including 1 to 10 wt. % of an alkali metal carbonate, 0.5 to 10 wt. % of a borate salt or hydrate thereof, and 0.5 to 2.5 wt. % of a base to produce a carbonate-comprising scale. The method further includes exposing the carbonate-comprising scale with an acid solution including 2.5 to 25 wt. % of an acid.
Type:
Grant
Filed:
March 18, 2024
Date of Patent:
July 9, 2024
Assignee:
King Fahd University of Petroleum and Minerals
Inventors:
Mohamed Mahmoud, Muhammad Shahzad Kamal
Abstract: A method of removing a sulfate scale from a surface is provided. The method includes contacting the sulfate-comprising scale with a conversion solution including 1 to 10 wt. % of an alkali metal carbonate, 0.5 to 10 wt. % of a borate salt or hydrate thereof, and 0.5 to 2.5 wt. % of a base to produce a carbonate-comprising scale. The method further includes exposing the carbonate-comprising scale with an acid solution including 2.5 to 25 wt. % of an acid.
Type:
Application
Filed:
March 18, 2024
Publication date:
July 4, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Inventors:
Mohamed MAHMOUD, Muhammad Shahzad KAMAL
Abstract: A method of removing a sulfate scale from a surface is provided. The method includes contacting the sulfate-comprising scale with a conversion solution including 1 to 10 wt. % of an alkali metal carbonate, 0.5 to 10 wt. % of a borate salt or hydrate thereof, and 0.5 to 2.5 wt. % of a base to produce a carbonate-comprising scale. The method further includes exposing the carbonate-comprising scale with an acid solution including 2.5 to 25 wt. % of an acid.
Type:
Application
Filed:
March 18, 2024
Publication date:
July 4, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Inventors:
Mohamed MAHMOUD, Muhammad Shahzad KAMAL
Abstract: A method of removing a sulfate scale from a surface is provided. The method includes contacting the sulfate-comprising scale with a conversion solution including 1 to 10 wt. % of an alkali metal carbonate, 0.5 to 10 wt. % of a borate salt or hydrate thereof, and 0.5 to 2.5 wt. % of a base to produce a carbonate-comprising scale. The method further includes exposing the carbonate-comprising scale with an acid solution including 2.5 to 25 wt. % of an acid.
Type:
Application
Filed:
March 18, 2024
Publication date:
July 4, 2024
Applicant:
King Fahd University of Petroleum and Minerals
Inventors:
Mohamed MAHMOUD, Muhammad Shahzad KAMAL
Abstract: The invention relates to the field of oilfield development engineering, and discloses a self-growing gel dispersion active fluidity control system and a fluid channeling control method for a low-permeability-tight reservoir. The system contains 100 parts by weight of a self-growing gel dispersion and 0.15-0.6 part by weight of a surfactant, the self-growing gel dispersion is prepared by shearing and grinding nano-reinforced chromium-aldehyde double-group cross-linked integral gel, and the preparation method of the nano-reinforced chromium-aldehyde double-group cross-linked integral gel comprises the following steps: adding a functional polymer, a phenolic resin cross-linking agent, are organic chromium cross-linking agent and a nano-reinforcer into water, mixing, and curing.
Type:
Grant
Filed:
April 7, 2023
Date of Patent:
July 2, 2024
Assignees:
China University of Petroleum (East China), China University of Geosciences (Beijing)
Inventors:
Yifei Liu, Caili Dai, Guang Zhao, Chenwei Zou, Ning Yang, Qing You, Mingwei Zhao, Yining Wu, Lin Li, Yongpeng Sun