59 results about "Pressure management" patented technology

The invention provides an intelligent pressure management system, method and terminal for geological sequestration of carbon dioxide, and the system comprises the steps: collecting the pressure data of the interior and peripheral key positions of each geological reservoir in real time through a pressure monitoring subsystem, and then carrying out the data preprocessing and feature extraction through a data processing and analysis subsystem; and predicting the reservoir pressure change trend in a specific time period in the future. If the predicted reservoir pressure change trend pressure is too high, high-risk related information is transmitted to the intelligent regulation and control subsystem, and the intelligent regulation and control subsystem regulates and controls the reservoir pressure by regulating the flow of a carbon dioxide injection well and a production well or starting a pressure release device according to a preset strategy and dynamically regulates a regulation and control mode according to pressure data. Meanwhile, the communication and monitoring subsystem transmits system operation data to a remote monitoring terminal in real time, so that real-time monitoring is facilitated. Real-time, accurate and automatic regulation and control of the pressure of the geological reservoir are achieved, the stability and safety of the geological reservoir in the carbon dioxide injection process are guaranteed, the geological storage effect of the carbon dioxide is improved, and various negative effects caused by too high pressure are avoided.

A system includes a control system disposed on a well surface and a pipe component disposed in a wellbore to form an annulus that is in fluid communication with a reservoir. The system includes a valve in fluid communication with the annulus. The system includes a recorder configured to detect data of the annulus. The system includes a fluid conduit configured to flow annular fluid from one or more annuli disposed in the wellbore. The fluid conduit is in fluid communication with the annulus, the valve, and a relief tank. The system includes a communication cable coupled to the control system, the valve, and the recorder. The recorder is configured to transmit the data to the control system.

The invention discloses an oil gas dust removal and purification system capable of intelligently sensing and adjusting air volume and pressure balance. The oil gas dust removal and purification system comprises an intelligent monitoring and control module based on a system architecture, an air volume optimization and dust removal processing module and a pressure management and safe discharge module, and the intelligent monitoring and control module comprises an environmental data acquisition module and an intelligent decision and execution module; the air volume optimization and dust removal treatment module comprises an air volume intelligent adjusting module and an efficient dust removal and filtering module. Compared with the prior art, the system has the advantages that the air volume and the pressure are intelligently adjusted; efficient dust removal and purification are realized; and the safety performance is improved.

The invention discloses a method for determining ultimate bearing pressure of a small-caliber oil pipeline in a corrosion environment. The method comprises the following steps: 1) collecting basic data, common defect parameters and environmental corrosion degree judgment criteria of common small-caliber pipelines in an oil field; 2) screening effective numerical values, and performing conservative processing; (3) calculating the corrosion allowance of the pipelines of various specifications and the wall thickness corrosion amount of a certain age limit under different environmental corrosion degrees; (4) a service applicability evaluation curve is drawn, evaluation is conducted, and the ultimate bearing pressure of the pipeline is determined; and (5) adjusting evaluation parameters, forming a statistical table, and selecting the ultimate bearing pressure smaller than the ultimate bearing pressure determined in the step (4) on site for implementation. According to the method, the evaluation point just falls on the critical line of the evaluation curve by adjusting the pressure parameters, so that the ultimate bearing pressure of the pipeline is obtained, and data support is provided for service pressure management and pressure test parameter determination of the in-service small-caliber oil pipeline of an oil field.

The invention discloses a design method for carrying out PMA partition optimization and DMA partition optimization synchronously on a water supply pipe network. The design method comprises the following steps: firstly, simulating a daily pipe network operation state by a hydraulic model; generating a pipe network topographic map in combination with the ground elevation, and preliminarily determining a partition structure by determining the maximum value range of the ground elevation difference; calculating the shortest path from any node of the pipe network to the central point of the pressure point of each partition to obtain a new partition structure; the pressure center point of the new partition structure is recalculated, and a partition scheme is obtained through optimization calculation and special point adjustment; on the basis of the determined PMA scheme, the range is further narrowed to refine the DMA scheme, and DMA partitions are determined by adopting the same algorithm and adjustment mode; and a DIJKSTRA algorithm is adopted, and the positions of partition flow monitoring equipment, a pressure control device and a valve are determined. And a plurality of evaluation indexes are calculated through hydraulic simulation to determine an optimal PMA and DMA overall partitioning scheme. And carrying out transverse comparison on the optimized PMA partition scheme by utilizing a pipe network energy surplus ratio, sorting the PMA partitions, and determining the priority of pressure management.

The present disclosure relates generally to the field of cushioning articles, more specifically to the field of articles having pressure management and thermal insulation properties. The present disclosure also relates to a method of manufacturing such articles and to their use for industrial applications for pressure and thermal management applications.

The invention relates to the technical field of high-pressure tank liquid injection control, and discloses a high-pressure tank liquid injection process control method and system, and the method comprises the steps: setting control parameters: micro-injection and standing balance duration, a pressure reference value, an upper limit and a rate threshold; starting an injection pump and a liquid inlet valve, and entering a micro-injection stage; stopping the injection pump and closing the valve, and entering a feeding balance and pressure management stage; whether the accumulated injection amount reaches the total injection amount target or not is judged, and injection is repeatedly executed or stopped; continuously monitoring the pressure in the tank, and triggering an emergency shutdown program when the pressure in the tank reaches the upper limit of the pressure in the tank or the rapid rising speed threshold of the pressure; according to the method, through staged control (including a micro-injection stage and a standing balance stage) and multi-parameter monitoring, the problems of pressure abrupt increase misjudgment and injection interruption caused by temperature difference and dissolved gas precipitation in the prior art are effectively solved.

A submersible well fluid system for operating submerged in a body of water may include an electric machine and a fluid end. The electric machine includes a rotor and a stator residing in a first housing at specified conditions. The fluid end may include an impeller and be coupled to the electric machine. The submersible well fluid system may also include an adjustable speed drive for the electric machine in the housing. The submersible well fluid system may also include a chemical distribution system for supplying treatment chemicals to the submersible well fluid system, a barrier fluid supply system for supplying a barrier fluid to the submersible well fluid system, and a pressure management system.

The application discloses a multi-mode gas management system, which comprises a pressure management system, a fuel supply control system, a reliquefaction control system, a reburning control system and a venting control system of a gas exhaust mast. The pressure management system is used for selection of a navigation pressure mode and a cargo hold pressure control mode. The fuel supply control system is used for providing fuel gas with stable pressure for power generation main engines and propulsion main engines. The reliquefaction control system lowers the BOG evaporation rate by lowering the temperature and pressure of the cargo hold, and deep-freezes and liquefies the BOG in the cargo hold. The reburning control system is used for protecting the pressure of the cargo hold. The venting control system of the gas exhaust mast is used for discharging gas into the atmosphere when the gas cannot be combusted and the ship is in the open sea. The application avoids unit pressure fluctuation interference in a mode, and guarantees safe and stable operation of an LNG transport ship.

A method for controlling the operating pressure of a liquid carbon dioxide receiving facility is disclosed, the method comprising unloading liquid carbon dioxide from a transport vessel to the liquid carbon dioxide receiving facility, storing the liquid carbon dioxide in a temporary storage 13 at the liquid carbon dioxide receiving facility, pumping the liquid carbon dioxide from the temporary storage to permanent geologic storage or external use, and managing pressure in the temporary storage using at least some of the carbon dioxide liquid phase.

In a system (10) and a method for pressure management while extracting a liquid from a liquid storage vessel (11), a liquid (12) and its vapour (13) are provided in liquid storage vessel (11). The liquid (12) is extracted by a pump (17) from the storage vessel (11) and fed as a liquid flow (19) to a consumer unit (16). A defined partial flow (19a) is separated from the liquid flow (19) downstream of the pump (17). The pressure of the partial flow (19a) is reduced by a pressure regulation means (20) and the partial flow (19a) is evaporated by an evaporator (22). The evaporated partial flow (19a) is fed back into the storage vessel (11).

The present utility model introduces an integrated building hydropower and pressure management system designed for gravity-fed water distribution lines. The system uses a specialized T-junction to divide water flow into a primary generation path and a parallel secondary pressure relief bypass. The primary generation path includes an in-pipe hydro turbine-generator system prioritized for continuous flow to harvest energy and reduce pressure during normal use. The parallel secondary bypass path includes a pressure relief valve and a pressure gauge that manage excess pressure spikes without restricting distribution. Both paths discharge to the water distribution line. This integrated approach ensures continuous, prioritized energy generation while providing safe and robust pressure regulation within the building infrastructure.

The application discloses a tank normal-pressure management platform multi-dimensional risk assessment system and particularly relates to the technical field of tank safety risk assessment, and the system comprises data acquisition, parameter preprocessing, multi-dimensional dynamic coupling calculation, risk grade assessment, visual output and model optimization feedback modules. The multi-dimensional dynamic coupling calculation module is internally provided with four units, namely, corrosion rate dynamic calculation, failure probability coupling analysis, overhaul cycle rolling optimization and foundation settlement layered evaluation. A dynamic coupling closed loop architecture is formed between the units through bidirectional data flow. The application realizes the collaborative analysis and dynamic optimization of corrosion rate, failure probability, overhaul cycle and settlement risk by constructing a multi-dimensional dynamic coupling assessment system, solves the problems of single assessment dimension and static calculation model in the prior art, significantly improves the risk assessment accuracy and the scientific nature of maintenance decision, and can be applied to the safe operation monitoring and maintenance management of normal-pressure tanks in the petroleum and chemical industries.

A pressure management unit (1) for the annulus of a well comprises a control unit (80), connected to a sensor (94, 95, 96) and to valves (57, 66) to compare the pressure against predetermined thresholds. If the pressure is too high, the control unit (80) commands a pressure discharge according to a predefined depressurisation function. If the pressure is too low, the control unit (80) commands a pressurisation according to a predefined pressurisation function. A control method for regulating the pressure of an annulus comprises: monitoring the pressure (P) in the annulus via a sensor (94, 95, 96), and commanding the opening of a regulating valve to depressurise the annulus according to a first predefined discharge function or commanding the opening of another regulating valve to pressurise the annulus according to a second predefined pressurisation function.

The invention discloses a liquid treatment system based on steam coupling pressurization and an operation method, and the system comprises a liquid treatment module which comprises at least one liquid storage device; the gas control module comprises a communication valve pipe system communicated with a communication gas source and a pressure increasing valve pipe system communicated with a pressure increasing gas source, and the communication valve pipe system and the pressure increasing valve pipe system are in decoupling connection with the liquid storage device; the fluid conveying module comprises a liquid inlet valve pipe system used for inputting liquid to be pressurized into the liquid storage device and an outlet valve pipe system used for outputting pressurized liquid from the liquid storage device; and the dynamic pressure management module is used for coordinating and controlling the opening and closing states of the communicating valve piping system, the pressure increasing valve piping system, the liquid inlet valve piping system and the outlet valve piping system. The thought that the system is decoupled into a plurality of independent operation modes at the same time is adopted, the high-low pressure environment which cannot coexist is disassembled into independent spaces for synchronous operation, and periodic stagnation of the technological process is thoroughly eliminated while it is maintained that a booster pump continuously sucks a liquid working medium.

The pore pressure processing method and apparatus for shale formations provided in this application are applied to computer equipment. The method includes: receiving a user-uploaded acquisition command for a target shale formation through a preset interactive interface, and acquiring corresponding multi-source data and the duration of the geological process accordingly; determining the pore elastic parameters and sealing-decompression related parameters of the target shale formation based on the multi-source data; determining the corresponding hydraulic diffusion coefficient and sealing-decompression time scale based on the sealing-decompression related parameters; determining the corresponding decompression weight based on the sealing-decompression time scale and the duration of the geological process; constructing a temperature-pressure coupled control equation based on the multi-source data and pore elastic parameters; calculating the corresponding target pore pressure increment based on the decompression weight and the temperature-pressure coupled control equation; and determining the target pore pressure of the target shale formation based on the target pore pressure increment, thereby improving the accuracy and applicability of pore pressure processing for shale formations.

The invention discloses a direct seawater electrolysis electrolytic bath hydrogen production test device, which realizes full-flow automatic operation of a hydrogen production process through an integrated control system. The system has the functions of dual-mode circulation switching, collaborative stabilization of system pressure and liquid level, automatic electrolyte supply and temperature regulation and control, online sampling analysis and programmed pressure management, and performs synchronous monitoring and recording on multiple parameters such as temperature, pressure, flow and conductivity through a distributed sensing network. The problems of low automation degree, discrete control, difficulty in data tracing and the like in the prior art are effectively solved, and the test efficiency and the system stability are remarkably improved.

The invention provides an air pressure management device and an air pressure management method capable of determining the presence or absence of abnormality of tire air pressure and the type of abnormality with high precision. A cloud server (30), which is an air pressure management device, is provided with an abnormality determination unit (36) for determining the presence or absence of an abnormality in a tire (2) and the type of the abnormality on the basis of the result of comparison between a reference air pressure and a temperature-converted air pressure, the abnormality determination unit (36) being provided with: a first abnormality determination unit (36A); a first abnormality determination unit (36A) that determines that the tire (2) has an abnormality when the difference between the reference air pressure and the temperature-converted air pressure is equal to or greater than a first threshold value (K1), and that determines that the type of the abnormality is tire (2) bursts when the difference is equal to or greater than a second threshold value (K2) that is greater than the first threshold value; and a second abnormality determination unit (36B) that determines whether the type of abnormality is slow air leakage or natural air leakage of the tire (2) when the difference value is equal to or greater than the first threshold value (K1) and less than the second threshold value (K2).

The invention provides a ship LNG dual-fuel ventilation system and a control method thereof. The ship LNG dual-fuel ventilation system comprises an air brake room isolation unit, a mechanical air supply module, a natural exhaust channel, a dynamic pressure management system and a fault emergency unit. The air brake isolation unit is arranged in a transition area between an LNG fuel cabin and a cabin, and the physical isolation structure of the air brake isolation unit conforms to the IGF Code standard. The mechanical air supply module comprises a main fan and a standby fan which are arranged in parallel, and is provided with a main power supply and an emergency power supply of a double-circuit power supply interface connection system; the natural exhaust channel is provided with an explosion-proof gravity baffle and a fireproof air brake; the dynamic pressure management system comprises a pressure sensor, a flow switch and a controller, and the positive pressure value between air brakes is maintained to be larger than or equal to 50 Pa in real time. The fault emergency unit comprises a power supply monitoring module and a fan switching actuator. According to the technical scheme, through multi-stage control logic, two-way redundancy power supply and intelligent pressure management, the problems that a traditional LNG ship ventilation system is insufficient in dynamic pressure control, weak in redundancy design and lagged in emergency response can be solved.

The present disclosure relates generally to the field of cushioning articles, and more particularly to the field of articles with pressure management and thermal insulation properties. The present disclosure also relates to methods of making such articles and their use in industrial applications for pressure and thermal management applications.

A method of managing pressure in a wellbore having an annulus defined between a wall of the wellbore and a work string that includes drill pipe, a service tool, and a lower completion, the method comprising: performing the following operations, running the work string in hole down the wellbore while maintaining an annulus pressure while maintaining a hydrostatic pressure within the work string above a valve of the service tool, wherein the valve is configured to pressurize the annulus without pressurizing the work string.

The invention provides an oil casing annulus pressure diagnosis method and device and a medium, and relates to the technical field of oil field oil production engineering.The method comprises the steps that the pressure, temperature and temperature variation of a shaft are determined, and shaft units are divided; for each wellbore unit, determining a first annulus pressurization prediction value of the wellbore unit according to the temperature variation and a thermal expansion pressurization prediction model; for each shaft unit, determining a second annulus pressurization prediction value of the shaft unit according to the pressure, the temperature and the gas leakage pressurization prediction model; and according to the first annulus pressurization predicted value, the second annulus pressurization predicted value, the measured first annulus pressurization actual value and the measured second annulus pressurization actual value, diagnosing the reason for generating the annulus pressure of the oil casing. Therefore, the reason for the annulus pressure of the oil casing is determined through calculation, powerful reference and theoretical basis are provided for annulus pressure management and control and safe production, the requirement for efficient exploitation of an oil field is met, and the efficiency and convenience of efficient exploitation of the oil field are improved.

The invention discloses an annular pressure regulating system for a compressed air energy storage well, which relates to the technical field of underground salt cavern reservoir engineering and comprises a buffer tank body, an injection and drainage unit and a monitoring unit. The buffer tank body is communicated with a shaft technical casing annulus through a pipeline; the injection and drainage unit is used for dynamically adjusting the proportion and pressure of gas and liquid phases in the tank; the monitoring unit monitors the position of the gas-liquid interface in the tank in real time, and the output of the monitoring unit is used for evaluating the sealing state of the annulus well barrier. The gas-liquid proportion of the buffer space is actively adjusted through the injection and drainage unit, and annular pressure violent fluctuation caused by high-frequency injection and production is effectively absorbed and stabilized; meanwhile, on the basis of continuous monitoring of the monitoring unit on the gas-liquid interface, early diagnosis and early warning of annulus protection liquid leakage are achieved. According to the system, passive buffering is converted into active adjustable pressure management, and the completeness and operation safety of the annular well barrier of the compressed air energy storage well are remarkably improved.

1. The name of the design product: pressure management device (X60). 2. The use of the design product: for gathering multiple cables together in a circuit, reducing the number of cables in the circuit. 3. The design points of the design product: in the overall shape of the product. 4. The picture or photo that best indicates the design points: perspective view.

A method can include connecting an apparatus between a pump and a standpipe, pumping fluid to the standpipe through a main flow line of the apparatus having a mass flowmeter connected therein, and pumping the fluid through a bypass flow line of the apparatus having another mass flowmeter connected therein to a return flow line upstream of a choke manifold, without the fluid flowing through the standpipe. A flow measurement and diversion apparatus can include an inlet connected to a pump, an outlet connected to a standpipe, and another outlet connected to a return flow line, a main flow line connected between the inlet and one outlet, and a mass flowmeter connected in the main flow line, and a bypass flow line connected between the inlet and the other outlet, and another mass flowmeter connected in the bypass flow line.

The present invention relates to the field of pressure management of power generation supply - side equipment, including a boiler. The output end of the boiler is connected to a regulator, and the top of the regulator is connected to an air pipe. A control structure is provided above the outer wall of the air pipe; the control structure includes a controller, the controller is fixedly connected to the air pipe, a first motor is fixedly connected to the top of the controller, a threaded shaft is fixedly connected to the end of the main shaft of the first motor, and a downward - pressing sealing block is spirally connected to the outside of the threaded shaft and is in contact with the controller. In the present invention, through the arranged controller, first motor, downward - pressing sealing block, vertical rod and air outlet pipe, the high - pressure to medium - pressure cylinder regulates steam through the pressure - releasing structure inside the controller, effectively reducing the pressure borne by the high - pressure to medium - pressure cylinder body, protecting it and extending its service life.

The invention relates to a gas storage tank pressure management and control system and method, the system comprises an exhaust control unit and a pressure management unit, the pressure management unit is used for managing and controlling the pressure of a plurality of gas storage tanks, the exhaust control unit comprises a venturi suction device, the venturi suction device is provided with an exhaust channel and a suction channel, and in the plurality of gas storage tanks, the venturi suction channel is communicated with the exhaust channel. Wherein one air storage tank is only communicated with the air suction channel through a pipeline, and the rest air storage tanks are communicated with the air suction channel through a pipeline and also communicated with the inlet section of the exhaust channel through a pipeline. The pressure management unit is communicated with each gas storage tank through a pipeline, the pressure management unit comprises a gas catalysis device, gas evaporated in the gas storage tanks is discharged into the gas catalysis device, the gas catalysis device is filled with a catalyst capable of reacting with the gas, and the gas is liquefied and stored in the gas catalysis device. The pressure of the air storage tank can be controlled, and the problem that the air storage tank overflows due to too high pressure or the problem that the air storage tank cannot be discharged due to too low pressure is solved.

The method for evaluating the starting time sequence of the geomechanical instability induced by CO2 injection in overpressure reservoirs relates to the technical field of carbon capture, utilization and storage.The present application establishes an initial state of pore pressure and ground stress self-consistency by constructing a two-dimensional fully coupled porous elastoplastic model and using a multi-stage prestress initialization strategy to simulate the natural overpressure background.On this basis, the coupled control effect of injection pressure and well-fault spacing on the time sequence of caprock tensile crack initiation, fault shear activation, plastic accumulation and permeability increase feedback is systematically analyzed.The present application first identifies the "blind fault pressure relief feedback time lag" mechanism in which the caprock tensile crack initiation precedes the effective pressure relief feedback of the fault under the conditions of ultra-low permeability, natural overpressure and short-term strong overload.The present application provides key geomechanical basis for the safe pressure management, well deployment and risk monitoring and early warning in the CO2 geological storage in overpressure reservoirs, and solves the technical problem that it is difficult to determine the competitive instability leading mode in the prior art.

The invention relates to the technical field of emergency rescue, daily filling or base gas cylinder filling, and discloses a portable high-pressure air purification bridging device and a pressure supplementing method thereof.The portable high-pressure air purification bridging device comprises a high-pressure input assembly, a purification control assembly and a safety output assembly; the high-pressure input assembly further comprises a connecting interface, a high-pressure conveying pipeline and a primary protection unit, the purification control assembly further comprises a multi-stage integrated purification unit and an intelligent monitoring and safety interlocking unit, and the safety output assembly further comprises a respiratory compatibility high-pressure guide pipe, an anti-misconnection safety interface and an output pressure management unit. Polluted air input by a non-breathing-level high-pressure air source such as an industrial air compressor can be rapidly purified into clean air meeting the breathing safety standard, emergency pressure supplementing is carried out on an air cylinder of the positive-pressure type air respirator, and the problems that pressure supplementing is difficult for the positive-pressure type air respirator of a grassroots unit, and the positive-pressure type air respirator depends on a fixed filling station are solved.

The present invention discloses a novel bladeless wind turbine power generation system designed to efficiently harness wind energy in environments where traditional large-blade turbines are impractical The system features a cylindrical hollow pipe with spiral air inlets, which initiates wind channelization. A bladeless fan, positioned at one end of the pipe, creates negative air pressure, facilitating continuous airflow through the pipe. This airflow is then directed through a series of concentric reducer pipes with strategically placed inlets, accelerating wind flow and enhancing pressure management. The wind is ultimately channelled into a motor where a rotating shaft converts the kinetic energy into mechanical energy, which is further transformed into electrical energy. The design minimizes noise, visual impact, and wildlife risks compared to conventional turbines. The invention is particularly advantageous for narrow or spatially constrained locations such as urban areas and valleys, offering a high-efficiency, cost-effective alternative to traditional wind energy solutions.