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公开(公告)号：US11828734B2
公开(公告)日：2023-11-28
申请号：US17386360
申请日：2021-07-27
发明人： Jinchuan Zhang , Xiwei Wang , Zhongming Li , Pei Li , Shijing Chen , Yang Liu , Xiaoliang Wei
CPC分类号： G01N3/06 , G01N3/08 , G01N33/24 , G01N2203/0019 , G01N2203/0067
摘要： A loading apparatus for rock fracturing simulation includes an upper cover plate, a lower cover plate, lateral pressure pieces, and an acoustic measurement module top pillar. There are at least two lateral pressure pieces which are provided with a force applying face respectively for transmitting a radial force to a core sample. The upper cover plate, the lower cover plate and the lateral pressure pieces enclose a loading space for placing the core sample, and the lateral pressure pieces can slide along a radial direction of the core sample and relative to the upper cover plate or the lower cover plate. The lateral pressure pieces are provided with a sensor inserting hole for allowing a sensor to pass through respectively, and the sensor is attached to an outer peripheral wall of the core sample.
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公开(公告)号：US20230323750A1
公开(公告)日：2023-10-12
申请号：US18297419
申请日：2023-04-07
发明人： Yifei LIU , Caili DAI , Guang ZHAO , Chenwei ZOU , Ning YANG , Qing YOU , Mingwei ZHAO , Yining WU , Lin LI , Yongpeng SUN
CPC分类号： E21B33/13 , C09K8/512 , C09K8/5086 , C09K8/584
摘要： 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.
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公开(公告)号：US11497361B2
公开(公告)日：2022-11-15
申请号：US16679217
申请日：2019-11-10
发明人： Shu Tao , Dazhen Tang , Hao Xu , Song Li , Xinyang Men , Yaning Wu
摘要： The present invention discloses an adjustable gas detection device for coal bed comprising a detection direction adjustment assembly, a suction head angle adjustment assembly and an analysis bin, wherein the suction head angle adjustment assembly includes a suction head first-level angle adjustment assembly and a suction head second-level angle adjustment assembly, and the suction head first-level angle adjustment assembly includes a suction head that sucks a gas through a suction pump and sends it into the analysis bin through a suction pipe for analysis; the detection direction adjustment assembly and the suction head angle adjustment assembly jointly adjust a position and a direction of the suction head. The gas detection device for coal bed of the present invention has many degrees of freedom, can quickly complete the angle adjustment, and realizes rapidly-oriented detection, as well as having advantages of high control efficiency, rapid response, flexibility and reliability.
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公开(公告)号：US11247909B1
公开(公告)日：2022-02-15
申请号：US17237772
申请日：2021-04-22
发明人： Guang Zhao , Caili Dai , Lihao Liang , Dongfang Lyu , Qing You , Yifei Liu , Ning Yang , Ning Sun
IPC分类号： C01B32/372 , C01B32/342 , C09K8/58 , B82Y40/00
摘要： 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;
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公开(公告)号：US11242736B2
公开(公告)日：2022-02-08
申请号：US16740446
申请日：2020-01-12
发明人： Shu Tao , Dazhen Tang , Hao Xu , Song Li , Shida Chen
IPC分类号： E21B43/26 , E21B33/124 , E21B43/12 , E21B43/00 , E21B33/128
摘要： Disclosed is a fracturing device for extraction of coalbed methane in low permeability reservoir. In the disclosure, by controlling the fracturing of fracturing pipes and the sealing of a segmented sealing mechanism for fracturing using a fracturing controller, the fracturing in fracturing holes can be effectively controlled. The segmented sealing mechanism for fracturing in the disclosure can separate each of the fracturing pipes in the fracturing holes separately in a sealed manner respectively, and perform segmented fracturing operations using each of the fracturing pipes, so as to effectively improve the uniformity and thoroughness of fracturing and ensure fracturing ability. In the disclosure, when the sealing operations are performed in each segment, the sealing effect of each segment can be ensured, and the sealing efficiency can be ensured, so that the fracturing ability of each segment of fracturing is improved to ensure the fracturing effect.
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公开(公告)号：US20210356367A1
公开(公告)日：2021-11-18
申请号：US17386360
申请日：2021-07-27
发明人： Jinchuan Zhang , Xiwei Wang , Zhongming Li , Pei Li , Shijing Chen , Yang Liu , Xiaoliang Wei
摘要： A loading apparatus for rock fracturing simulation includes an upper cover plate, a lower cover plate, lateral pressure pieces, and an acoustic measurement module top pillar. There are at least two lateral pressure pieces which are provided with a force applying face respectively for transmitting a radial force to a core sample. The upper cover plate, the lower cover plate and the lateral pressure pieces enclose a loading space for placing the core sample, and the lateral pressure pieces can slide along a radial direction of the core sample and relative to the upper cover plate or the lower cover plate. The lateral pressure pieces are provided with a sensor inserting hole for allowing a sensor to pass through respectively, and the sensor is attached to an outer peripheral wall of the core sample.
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公开(公告)号：US10982137B1
公开(公告)日：2021-04-20
申请号：US16899827
申请日：2020-06-12
申请人： China University of Petroleum (East China) , The Research Institute of Petroleum Exploration and Development (RIPED) of the Petro China Company , China University of Geosciences (Beijing)
发明人： Guang Zhao , Caili Dai , Xu Jin , Ning Yang , Qing You , Mingwei Zhao
IPC分类号： C08F220/56 , C09K11/06 , C08J3/075
摘要： The present disclosure discloses a fluorescent dispersed particle gel, a fluorescent gel, a fluorescent modified polyacrylamide composite, and a preparation method and use thereof.
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公开(公告)号：US20200315413A1
公开(公告)日：2020-10-08
申请号：US16679217
申请日：2019-11-10
发明人： Shu Tao , Dazhen Tang , Hao Xu , Song Li , Xinyang Men , Yaning Wu
摘要： The present invention discloses an adjustable gas detection device for coal bed comprising a detection direction adjustment assembly, a suction head angle adjustment assembly and an analysis bin, wherein the suction head angle adjustment assembly includes a suction head first-level angle adjustment assembly and a suction head second-level angle adjustment assembly, and the suction head first-level angle adjustment assembly includes a suction head that sucks a gas through a suction pump and sends it into the analysis bin through a suction pipe for analysis; the detection direction adjustment assembly and the suction head angle adjustment assembly jointly adjust a position and a direction of the suction head. The gas detection device for coal bed of the present invention has many degrees of freedom, can quickly complete the angle adjustment, and realizes rapidly-oriented detection, as well as having advantages of high control efficiency, rapid response, flexibility and reliability.
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公开(公告)号：US10761232B2
公开(公告)日：2020-09-01
申请号：US15944713
申请日：2018-04-03
摘要： The present disclosure provides a vector denoising method for the multicomponent seismic data, including: obtaining a wave vector of the multicomponent seismic data; calculating a first mean wave vector for the multicomponent seismic data by applying a first moving window, performing a median filtering for the first mean wave vector to obtain a true modulus of the ground roll, subtracting the wave vector of the ground roll from the multicomponent seismic data to obtain a vector time-series; performing a mean filtering for the vector time-series by using a second moving window to obtain a second mean wave vector, performing a median filtering and performing a median the median filtering within the same receiving line for the second mean wave vector to suppress the wave vector of the random noise in the vector time-series, thereby obtaining a wave vector of a purified effective signal.
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公开(公告)号：US10442976B1
公开(公告)日：2019-10-15
申请号：US16276027
申请日：2019-02-14
发明人： Qing You , Caili Dai , Long He , Jichao Fang , Baolei Jiao , Liang Li , Guang Zhao , Yifei Liu , Yan Zhang , Pan Wang
摘要： An oil-soluble coated particle flow modifier, a preparation method thereof, and a use thereof in fractured-vuggy carbonate reservoirs mining. The oil-soluble coated particle flow modifier is of a core-shell structure, which has a core layer of a coated core and a shell layer of a coating agent, wherein the coated core is made of a plugging material, and the coating agent consists of petroleum resin and hollow beads. Based on the total weight of the coated particle flow modifier, the content of the petroleum resin, the hollow beads, the cotton linters, and the coated cores is 10-40 wt %, 9-40 wt %, 1-10 wt %, and 35-80 wt %, respectively. A preparation method of the coated particle flow modifier and a use of the coated particle flow modifier in fractured-vuggy carbonate reservoirs mining to improve oil recovery is also provided.
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