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公开(公告)号：US20210040827A1
公开(公告)日：2021-02-11
申请号：US16824966
申请日：2020-03-20
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Qingxin Song , Zhidong Yang , Shanyan Zhang , Zemin Ji , Yulong Pu
Abstract: A method and an apparatus for oil production by increasing resistance of borehole wall for improving an energy utilization rate of injection gas includes injecting gas into an oil reservoir so that a gas pressure in the oil reservoir reaches an initial oil reservoir pressure. The initial oil seepage pressure is present at a position where the inside of the production well is in communication with the oil reservoir. The initial oil seepage pressure is less than the initial oil reservoir pressure. The method also includes monitoring gas production and oil production of the production well and increasing the initial oil seepage pressure to an increased oil seepage pressure when a ratio of the gas production to the oil production is higher than a predetermined ratio. The increased oil seepage pressure is smaller than the initial oil reservoir pressure.
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公开(公告)号：US12038344B2
公开(公告)日：2024-07-16
申请号：US17793195
申请日：2021-01-13
Applicant: PETROCHINA COMPANY LIMITED
Inventor： Xinglong Chen , Qingjie Liu , Jiazhong Wu , Haishui Han , Hongwei Yu
CPC classification number: G01M10/00 , F15D1/04 , G01F1/206 , G01F15/005 , G01F15/06
Abstract: A phase power device, comprising: a circulation pipe (1) and a preset number of phase power control components (2), wherein the circulation pipe (1) is used to provide a channel for fluid circulation flow, and the preset number of phase power control components (2) are disposed on the circulation pipe (1) and used to drive fluid in the circulation pipe (1) to circulate and flow. Further provided is a fluid experiment system, comprising the phase power device. The phase power device and the fluid experiment system may enable the fluid to meet a set flow requirement during the experiment, thus reducing the use of auxiliary equipment, and reducing experiment costs.
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公开(公告)号：US20200070067A1
公开(公告)日：2020-03-05
申请号：US16546588
申请日：2019-08-21
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Hongwei Yu , Shi Li , Haishui Han , Zemin Ji
Abstract: The embodiments of the present disclosure disclose an ultrasonic microbubble generation method, apparatus and system. The apparatus comprises a horn-shaped conductor including an upper horn-shaped body and a lower cylindrical body; the horn-shaped body is provided with a cavity having an upper opening, an upper end of the cavity is fixedly connected with a micropore vibration thin sheet, a micropore array of the micropore vibration thin sheet is corresponding to the upper opening of the cavity, and a side wall of the cavity is provided with a through hole for external gas to enter the cavity; the cylindrical body is provided with a transducing ring and an electrode sheet, an outer side of the cylindrical body is insulated and sealed, and a connection wire of the electrode sheet is led out by a steel pipe and connected with an external ultrasonic oscillation controller.
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公开(公告)号：US12098783B2
公开(公告)日：2024-09-24
申请号：US17999722
申请日：2021-05-20
Applicant: PETROCHINA COMPANY LIMITED
Inventor： Xinglong Chen , Jianguo Xu , Jiazhong Wu , Haishui Han , Na Zhang
IPC: F16K47/08 , E21B34/02 , E21B43/16 , F16K27/08 , F16L55/027
CPC classification number: F16K47/08 , E21B34/02 , E21B43/166 , F16K27/08 , F16L55/02763
Abstract: A cylinder porous cylinder, a gas flow control valve, and a mounting method for the gas flow control valve. The porous cylinder (1) includes a plurality of pipe bundles filled inside the pipe. A single flow passage is formed in each of the pipe bundles, such that a seepage passage is formed inside the pipe. The inner diameter, length and permeability of the pipe bundle are determined in advance based on a Reynolds number smaller than 2300. The porous cylinder (1) is capable of implementing a stable gas flow in a gas injection channel. The valve body (21) of the gas flow control valve (2) is provided therein with a plurality of tubular passages arranged in sequence along the horizontal direction of the valve body. The tubular passages include a pipe flow passage (24) and a plurality of seepage passages (25). The porous cylinder (1) is mounted in each of the seepage passages (25). A plurality of connection channels (221) are provided in the valve cap. One end of each of the connection channels (221) communicates with the interior of each of the tubular passages, and the other end of each of the connection channels (221) is provided respectively with a valve stem. The opening and closing of the plurality of tubular passages are controlled by the valve stem, thus regulating the output ratio of the injected gas. In addition, a mounting method for the gas flow control valve is further provided.
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公开(公告)号：US11098569B2
公开(公告)日：2021-08-24
申请号：US16359115
申请日：2019-03-20
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Jiazhong Wu , Hongwei Yu , Shi Li , Haishui Han
Abstract: A system and method of performing oil displacement by a water-gas dispersion system includes a micro-bubble generation apparatus, a gas source, an ultrasonic oscillation controller, a protective barrel and a support. A first opening is provided in a top end of the protective barrel, into which an internal apparatus enters and is extracted, the first opening is sealed by an end cover. A second opening communicating with a water flooding pipeline is provided in a side wall of the protective barrel, into which fluid flows and from which the fluid exits. The micro-bubble generation apparatus is fixed within the protective barrel by the support. The gas source is connected with the micro-bubble generation apparatus through a gas pipeline, for transporting gas to the micro-bubble generation apparatus. The ultrasonic oscillation controller is connected to the micro-bubble generation apparatus through a signal line, for controlling the micro-bubble generation apparatus to generate micro-bubbles.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11428065B2
公开(公告)日：2022-08-30
申请号：US16824966
申请日：2020-03-20
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Qingxin Song , Zhidong Yang , Shanyan Zhang , Zemin Ji , Yulong Pu
Abstract: A method and an apparatus for oil production by increasing resistance of borehole wall for improving an energy utilization rate of injection gas includes injecting gas into an oil reservoir so that a gas pressure in the oil reservoir reaches an initial oil reservoir pressure. The initial oil seepage pressure is present at a position where the inside of the production well is in communication with the oil reservoir. The initial oil seepage pressure is less than the initial oil reservoir pressure. The method also includes monitoring gas production and oil production of the production well and increasing the initial oil seepage pressure to an increased oil seepage pressure when a ratio of the gas production to the oil production is higher than a predetermined ratio. The increased oil seepage pressure is smaller than the initial oil reservoir pressure.
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公开(公告)号：US11377941B2
公开(公告)日：2022-07-05
申请号：US16849283
申请日：2020-04-15
Applicant: PETROCHINA COMPANY LIMITED
Inventor： Xinglong Chen , Jingyao Wang , Chengming Zhang , Shitou Wang , Jiazhong Wu , Zhong Ren
Abstract: A gasflow distribution device includes an outer pipe, a gland, a filter screen, and a filling block with a pore structure. The outer pipe is a hollow outer pipe, used for placing the filling block, with an open upper end and a lower end with a bottom of which the center part is provided with a bottom hole, wherein the filling block is sealed to an inner wall of the outer pipe. The gland has a bottom end provided with a circular groove for setting the filter screen, and a top end distributed evenly with a plurality of top holes through the gland. The gland is connected to the outer pipe. The device can distribute gasflow proportionally, and can be used for separate-layer gas injection.
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公开(公告)号：US11344824B2
公开(公告)日：2022-05-31
申请号：US16546588
申请日：2019-08-21
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Hongwei Yu , Shi Li , Haishui Han , Zemin Ji
Abstract: The embodiments of the present disclosure disclose an ultrasonic microbubble generation method, apparatus and system. The apparatus comprises a horn-shaped conductor including an upper horn-shaped body and a lower cylindrical body; the horn-shaped body is provided with a cavity having an upper opening, an upper end of the cavity is fixedly connected with a micropore vibration thin sheet, a micropore array of the micropore vibration thin sheet is corresponding to the upper opening of the cavity, and a side wall of the cavity is provided with a through hole for external gas to enter the cavity; the cylindrical body is provided with a transducing ring and an electrode sheet, an outer side of the cylindrical body is insulated and sealed, and a connection wire of the electrode sheet is led out by a steel pipe and connected with an external ultrasonic oscillation controller.
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公开(公告)号：US11179683B2
公开(公告)日：2021-11-23
申请号：US16426768
申请日：2019-05-30
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Jiazhong Wu , Haishui Han , Shi Li , Hongwei Yu , Zemin Ji
Abstract: The present disclosure provides a microbubble generation device and equipment, wherein the microbubble generation device comprises: a microbubble generation mechanism having a housing and a core tube provided to pass therethrough, wherein at least one filter plate is provided on a peripheral sidewall of the housing, and an annular space is formed between the housing and the core tube; a flow rate control mechanism provided in the annular space, and connected to the core tube that is communicated with the annular space through the flow rate control mechanism, wherein a blocking ball is provided in the flow rate control mechanism and capable of blocking the flow rate control mechanism in a state that a pressure of gas injected into the flow rate control mechanism decreases; and a pressure balancing mechanism provided outside the housing and having a pressure balancing tube and a fluid check valve connected thereto. The present disclosure can withstand a huge pressure difference during a movement within a wellbore from a ground surface to an oil reservoir and take preventive measures for the failure. The gas injection process of the present disclosure not only meets the microbubble volume requirement, but also provides safe control measures.
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公开(公告)号：US20200072031A1
公开(公告)日：2020-03-05
申请号：US16359115
申请日：2019-03-20
Applicant: PetroChina Company Limited
Inventor： Xinglong Chen , Jiazhong Wu , Hongwei Yu , Shi Li , Haishui Han
Abstract: A system and method of performing oil displacement by a water-gas dispersion system includes a micro-bubble generation apparatus, a gas source, an ultrasonic oscillation controller, a protective barrel and a support. A first opening is provided in a top end of the protective barrel, into which an internal apparatus enters and is extracted, the first opening is sealed by an end cover. A second opening communicating with a water flooding pipeline is provided in a side wall of the protective barrel, into which fluid flows and from which the fluid exits. The micro-bubble generation apparatus is fixed within the protective barrel by the support. The gas source is connected with the micro-bubble generation apparatus through a gas pipeline, for transporting gas to the micro-bubble generation apparatus. The ultrasonic oscillation controller is connected to the micro-bubble generation apparatus through a signal line, for controlling the micro-bubble generation apparatus to generate micro-bubbles.
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