China University of Petroleum

China University of Geosciences (beijing)

Northwest Oilfield Branch, China Petroleum & Chemical Co., Ltd

Oil and Gas Technology Research Institute, Petrochina Changqing Oilfield Company

Chinese Academy of Sciences

Peking University

Sichuan University

Qingdao University of Science and Technology

Research Institute of Petroleum Exploration & Development

The Research Institute of Petroleum Exploration and Development (riped) of the Petro China Company Limited (petro China)

Shengli Oilfield Branch, China Petroleum & Chemical Co., Ltd

Science and Technology Research Institute Ltd., Petro China

Northwest Oilfield Branch Engineering Technology Research Institute, Sinopec Group

Cnooc Energy Development Co., Ltd. Engineering Branch

China University of Geosciences

Guang Zhao

Caili Dai

Qing You

Mingwei Zhao

Yining Wu

Yifei Liu

Yongpeng Sun

Lin Li

Yahui Lv

Ning Sun

Chenglin Gu

Long He

He H Liu

Sen Wang

Jichao Fang

Ning Yang

Mingwei Gao

Jiaping Tao

Ping Yi

Yan Zhang

Jiaming Li

Pan Wang

Haien Yang

Zhongzheng Xu

Yuyang Li

Dongfang Lyu

Xin Wang

Bo Liu

Liang Li

Huan Wang

Tong Li

Yong Tao

Weifeng Liu

Baoshan Guan

Teng Wang

Guangjie Hu

Jiawei Liu

Qin Yang

Bin Yan

Qian Li

Yongsheng Ma

Wanlei Geng

Qianqian Cui

Qingfeng Liu

Baolei Jiao

Lihao Liang

Xu Jin

Hai'en Yang

Xue Yao

Xuepeng Wu

Zhongliang Xu

Zenglin Wang

Chenwei Zou

Jianhai Wang

Ju Zheng

Weiyu Chen

Yanhui Zhang

Lianming Zhao

Yanxu Zhang

Kequan Meng

Liguo Zhu

Daqian Zeng

Jia Chen

Haoran Cheng

Hao Ren

Yong Zheng

Zhongxu Xie

The present disclosure relates to the technical field of oilfield chemistry, and discloses a COchemical reaction viscosity-increasing type polymer surfactant for gas channeling control during COflooding in offshore heavy oil reservoirs, a preparation method therefor and use thereof, the COreactive viscosity-increasing polymer surfactant includes structural units represented by formula (1), formula (2) and a formula (3) respectively; R, R, R, Rand Rin formula (1) are respectively one or more of H, F, C-Calkyl alcohol, and at least one group is F; R, Rand Rin formula (2) are respectively one or more of H, C-Calkyl; R in formula (3) is one or more of C-Calkyl; the COreactive viscosity-increasing polymer surfactant has a high COgas channeling plugging strength, excellent chemical stability, and desirable heavy oil viscosity reduction performance;

COchemical reaction viscosity-increasing type polymer surfactant for gas channeling control during COflooding in offshore heavy oil reservoirs, preparation method therefor and use thereof

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. The system can be simply and rapidly prepared, is easy for deep injection by adjusting the size of gel dispersion particles, is wide in action range, high in stability and long in effective period of action, can avoid reservoir pollution, and does not affect the liquid production capacity of the reservoir. The gel dispersion particles can achieve self-growth in the low-permeability-tight reservoir fractures, and the fracture fluid channeling control effect is enhanced.

Self-growing dispersed particle gel active mobility control system and fluid channeling control method for low-permeability-tight reservoir

The present discloses a simulation device and simulation method for liquid sulfur-gas-water multiphase flow and use thereof in a high-temperature and high-pressure gas reservoir with high sulfur content.

Simulation device and simulation method for liquid sulfur-gas-water multiphase flow and use thereof in high-temperature and high-pressure gas reservoir with high sulfur content

The present disclosure a temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with a strong self-growth effect.

Temperature-resistant and salt-resistant modified nano-graphite dispersed particle gel system with strong self-growth effect

The present disclosure discloses superhydrophobic nanoparticles and a preparation method therefor, and a superhydrophobic nanofluid.

Superhydrophobic nanoparticals and preparation method therefor, and superhydrophobic nanofluid

A mussel bionic gel composition includes: a mussel bionic copolymer and/or a mussel bionic compound, a cross-linking agent and water, wherein the mussel bionic copolymer includes a structural unit A from a vinyl monomer and a structural unit B from a vinyl-containing mussel bionic catechol group monomer; and the mussel bionic compound includes polyacrylamide and a mussel bionic catechol compound. The self-growth gel particle profile control and water plugging agent prepared from the composition is low in initial apparent viscosity, easy to inject and far in migration, has good shear repairing performance and is particularly applicable to a low-permeability fractured reservoir, thereby adjusting a micro-fracture network, improving a fracture channel and increasing waterflood efficiency and recovery efficiency.

Mussel bionic gel composition, self-repairing gel, profile control and water plugging agent, method for preparing self-repairing gel, and use

The present disclosure discloses a multi-grafting site carbon nanomaterial comprising a structural unit represented by Formula (1), hydroxyl groups and a structural unit represented by Formula (2); wherein R is one or more selected from the group consisting of tolyl, diphenylmethyl, isophorone group and dicyclohexylmethyl; 

Multi-grafting site carbon nanomaterial and activated carbon nanomaterial and preparation method thereof and displacement system for ultra-low permeability oil reservoirs

Provided is a method for construction of recombinant bacteria for producing 3-hydroxypropionic acid. The method includes: knocking out fadR, fabF and fabH genes of recipient bacteria, introducing acc genes or gene clusters, alKL and Mcr genes, and enhancing the expression of fadL, fadD, sthA genes and atoSC gene clusters in the recipient bacteria. Also provided is a method for producing 3-hydroxypropionic acid by using the recombinant bacteria.

Recombinant bacteria for producing 3-hydroxy propionic acid, preparation method therefor, and applications thereof

The present disclosure discloses a fluorescent dispersed particle gel, a fluorescent gel, a fluorescent modified polyacrylamide composite, and a preparation method and use thereof.

Fluorescent dispersed particle gel, fluorescent gel and fluorescent modified polyacrylamide composite and preparation method and use thereof

The present disclosure relates to a method for oil displacement using a dispersed particle gel-strengthened polymer ternary composite displacement system.

Method for oil displacement using dispersed particle gel-strengthened polymer ternary composite displacement system

A modified nano graphite, a polymer composite material of the modified nano graphite, and use of the polymer composite material in a high temperature and high salinity oil reservoir.

Modified nano graphite and polymer composite material thereof, preparation method and use in high temperature and high salinity oil reservoir

A composite temperature resistance gel plugging agent, a preparation method thereof and Fuse thereof in profile control and water plugging of ultra-deep oil reservoirs.

Composite temperature resistance gel plugging agent, preparation method thereof and use thereof in profile control and water plugging of ultra-deepth reservoir

The present disclosure relates to the field of oilfield chemistry, in particular to a composition for multi-component composite intercalation, a method of preparing a graphite system and a method of profile control and water shutoff.

Composition for multi-component composite intercalation, method of preparing a low-temperature expandable graphite system and method of profile control and water shutoff in deep oil reservoir

A CO-sensitive fracturing and displacement fluid contains a surfactant, an auxiliary agent, water, and CO, wherein COis liquid and/or supercritical CO. The CO-sensitive fracturing and displacement fluid provided by the invention does not flow back after completion of fracturing construction, and the gel breaking fluid displacement is carried out after soak for a period of time to improve the tight oil recovery ratio. The CO-sensitive fracturing and displacement fluid exerts the 'one-agent multi-purpose' function of sand carrying, COenergization and oil displacement, surfactant imbibition and oil discharge of a fracturing-displacement system in different development and production stages, and achieves the dual goals of expanding the utilization degree of tight oil and improving the displacement efficiency of the tight oil, which can effectively reduce costs and achieve the goal of unified, highly efficient and green development of oil and gas fields.

CO-sensitive fracturing and displacement fluid and method of making the same and method for fracturing and displacement of tight oil reservoir

Provided a skid-mounted dispersed particle gel production device, dispersed particle gel and a preparation method and use thereof. The device sequentially comprises, in a delivery direction of a material flow, a jet blending system, a bulk gel chemical crosslinking reaction system, a shearing and grinding system, a storage system. and an intelligent regulation system Rapid crosslinking reaction of bulk gel in a medium/high-temperature oil reservoir and large-scale preparation of multiscale dispersed particle gel can be realised, and the device is applied to continuous production in a complex environment such as a tidal flat, a hill and an offshore work platform.

Skid-mounted dispersed particle gel production device, dispersed particle gel and preparation method and use thereof

Growing community of inventors

Qingdao, China

Guang Zhao