345 results about "Fluid injection" patented technology

The invention discloses an experimental device and method for controlling migration and mineralization of ore-forming fluid in a wrinkle deformation process, and belongs to the technical field of ore deposit geology. The device comprises an ore liquid synthesis unit and a mechanical deformation simulation and mineralization analysis unit. The mechanical deformation simulation unit comprises a box body, an extrusion deformation system, a liquid injection system and a heating temperature control system, and can synchronously realize visual analysis of structure extrusion, fluid injection and mineralization precipitation at high temperature. The experimental method comprises the following steps: firstly, preparing a simulated metallogenic fluid containing FeS2 (pyrite); laying simulated surrounding rock and wrinkles in the box body, arranging a separation layer, and heating; extruding the sand layer and injecting fluid to simulate a mineralization process; and slicing, sampling and analyzing after model consolidation, and establishing a mineralization space distribution model. The device is simple in structure and convenient to operate, the whole process of fold extrusion, crack extension, fluid migration and mineral precipitation can be repeatedly represented, and an experimental basis is provided for hydrothermal deposit mineralization mechanism research and prospecting prediction.

The invention provides a dynamic strength test system and method for a soft rock biaxial Hopins compression bar, and the system comprises an axial impact loading unit which is used for generating an axial impact load; the confining pressure loading unit is used for applying radial confining pressure to the sample; the high-pressure fluid injection unit is used for injecting high-pressure fluid into the sample and simulating different internal water pressure and water saturation conditions; the data acquisition unit is used for recording impact load, confining pressure, internal water pressure and sample dynamic response data in real time; the control system is used for coordinately controlling the axial impact speed, the confining pressure and the internal water pressure value; by integrating the axial impact loading unit, the hydraulic servo confining pressure loading unit and the high-pressure fluid injection unit, a test platform capable of truly simulating a complex stress-seepage coupling environment where the deep soft rock is located is formed; therefore, the synchronous, independent and accurate control of axial dynamic load, constant or dynamic confining pressure and internal pore water pressure is realized.

The utility model discloses a microfluid device and a system for researching abnormal migration of solute of a fractured porous medium system. The microfluid device for studying abnormal migration of the solute of the fractured porous medium system comprises a chip and a substrate, wherein the lower surface of the chip is bonded with the upper surface of the substrate; a crack and a porous medium area distributed around the crack are patterned on the lower surface of the chip; the porous medium area comprises a plurality of cylinders, gaps are reserved among the cylinders, and flow channels communicated with the cracks are formed; and a part or all of the cylinders in the porous medium area are provided with notches serving as blind ends. The microfluid system for studying abnormal migration of the solute of the fractured porous medium system comprises a fluid injection device, the microfluid device and a fluid collection device which are connected in sequence.

The application discloses a kind of cross-tectonic period diagenesis simulation device and method.The device includes fluid driving system, reaction solution supply system and at least two groups of tectonic period reaction system connected in sequence, and different reaction systems are used to simulate the temperature and pressure conditions when geological fluid passes through each target layer during cross-tectonic period.The method first restores the geological conditions when geological fluid passes through each target layer during cross-tectonic period according to petrology and geochemistry analysis, combined with tectonic evolution history, burial history and fluid injection history, establishes cross-tectonic period diagenesis model, determines geological fluid type, and then determines the process of geological stress driving high-pressure layer fluid to migrate to low-pressure layer, restores the geological conditions when geological fluid passes through each target layer during cross-tectonic period;According to the restored geological process and geological conditions, the forward simulation of fluid dissolution, cementation, metasomatism and other diagenesis during cross-tectonic period is carried out by using cross-tectonic period diagenesis simulation device.Provide basis for judging the diagenetic mechanism of reservoir rock after high temperature and high pressure and multi-stage tectonic evolution.

A compressor includes a housing, a first compression mechanism and a second compression mechanism disposed in the housing, and a housing cover fixed to the housing. Both the first compression mechanism and the second compression mechanism are configured to compress a working fluid from a suction pressure to a discharge pressure. The first compression mechanism includes a first cylinder housing having a first fluid storage plenum. The second compression mechanism includes a second cylinder housing having a second fluid storage plenum. The housing cover defines an intermediate-fluid port in fluid communication with the first fluid storage plenum via a first intermediate-fluid passage and the second fluid storage plenum via a second intermediate-fluid passage. Working fluid at an intermediate pressure enters the intermediate-fluid port. The intermediate pressure is greater than the suction pressure and less than the discharge pressure.

The present disclosure relates to a method for assessing injection of a fluid into a borehole (11) defined by a borehole wall (12) extending into a body (10), the method comprising: - initiating (S1) the injection of the fluid into the borehole (11) using a fluid injection arrangement, - detecting (S2) fluid outside the borehole (11) and the fluid injection arrangement (20) using a detection device (30), and - on the basis of at least one of the following: - a detected position of the detected fluid outside the borehole (11) and the fluid injection arrangement (20), - an injection volume of the fluid, and - a time lapse (TL) from the time of initiation of fluid injection into the borehole (11) to the time of fluid detection outside the borehole (11) and the fluid injection arrangement (20), assessing (S3) the injection of fluid.

A kind of high temperature and high pressure conditions under the fracture of compacted rock permeation resistivity measuring device and method, including: core holder, fluid injection system, resistivity measurement system, pressure applying device and heating device;The device can be carried out under the condition of high temperature and high pressure simultaneously, simulate the fluid permeation process of fractured rock under different temperature and pressure conditions, wherein resistivity measurement system can measure the rock resistivity of permeation process in real time.The device has high measurement accuracy, the test result is intuitive, the device structure is simple, the sealing property, corrosion resistance and heat insulation effect are excellent, can be applied to rock fracture permeation resistivity measurement under different conditions, can quantitatively analyze the influence of temperature, pressure, fluid properties and rock fracture on rock permeability and resistivity, establish the mathematical model of the relationship between permeability and resistivity of fractured rock, can provide theoretical basis for geothermal development reservoir permeability resistivity prediction and evaluation.

A method for fracturing a subsurface rock formation for hydrogen production includes injecting a fluid comprising water into a subsurface rock formation under controlled conditions, generating fractures in the subsurface rock, and recovering hydrogen gas produced by subsurface rock after the generation of the fractures. The fluid is injected at a pressure below the breakdown pressure of the subsurface rock.

A system for implementing and optimizing the storage potential of subterranean carbon mineralization can include a fluid injection well subsystem having an injection wellbore, a pumping system, and a fluid injection completion system disposed at an injection range along the injection wellbore, where the fluid injection completion system is configured to control an injection rate of pressurized fluid from the injection range into an active storage zone within a subterranean rock formation. The system can also include a fluid production well subsystem having a production wellbore and a fluid production completion system disposed at a production range along the production wellbore, where the fluid production completion system is configured to control an inflow rate of production fluid from the active storage zone into the production range of the production wellbore. The system can further include a monitoring subsystem configured to monitor carbon mineralization in the active storage zone.

A wellhead, including a fluid injection system disposed in the wellhead, a fiber injection system disposed in the wellhead and operably connected to the fluid injection system to inject fiber into the fluid injection system. A multimodal fluid injection valve, including a body having a check valve therein, a side pocket physically and fluidly connected to the body, the side pocket including a fiber anchor therein. A method for instrumenting a preexisting gas lift or chemical injection system, including cleaning the chemical injection system, and injecting optic fiber through the chemical injection system. A wellbore system including a borehole in a subsurface formation, a string in the borehole, a surface system operably connecting both a chemical or gas injection device and an optic fiber injection device to a gas lift or chemical injection subsystem in the borehole, and an optic fiber disposed in the chemical or gas injection subsystem.

The present disclosure generally relates to microfluidics, and to systems and methods for controlling the introduction of fluids. For example, certain aspects are generally directed to microfluidic devices having ports able to direct the end of a pipette tip into an end portion that is sized so as to allow fluid to flow from the pipette tip into an exit fluidly connected to a microfluidic channel. For example, the port may have a tapered portion that directs the pipette tip to the end portion. The end portion may be sized such that it is difficult for fluid to backflush around the pipette tip, and thus, the fluid is able to flow into microfluidic channels within the device, e.g., without resulting in excessive fluid remaining within the end portion. Other aspects are generally directed to methods of making or using such microfluidic devices, kits including such microfluidic devices, and the like.

The invention discloses a bionic fracture network fracturing device for a low-permeability coal seam, and relates to the technical field of efficient exploitation of oil fields. A bionic fracture network fracturing device for a low-permeability coal seam comprises a recycling mechanism 1 and a hole sealing mechanism 2. The recycling mechanism comprises a recycling body, a signal transmission module is fixedly embedded in one side of the recycling body, a liquid injection module is fixedly embedded in the other side of the recycling body, and fixing pieces are clamped to the two ends of the recycling body respectively. A first connecting assembly used for being in butt joint with the hole sealing mechanism is arranged on the lower side of the middle of the recycling body. A rod cracking hole located between the signal transmission module and the fixing piece on the same side is formed in one side of the recycling body in a penetrating mode, and a gas hole located between the liquid injection module and the fixing piece on the same side is formed in the other side of the recycling body in a penetrating mode. A rod cracking mechanism is arranged at the rod cracking hole, and a gas mechanism is arranged at the gas hole; the filling liquid flows through the crack pipes and the branch crack holes to form the bionic cracks of the main channel and the pre-branch, so that the connectivity and the coverage range of the crack network are remarkably improved.

A hydraulically driven fluid injection system comprising a reservoir having a first and second chamber and a piston separating the first and second chamber. A reservoir control valve to control the input of a first fuel source to the first chamber. The reservoir control may operate by having an open and a closed state. Alternatively, the reservoir control may have a first mode, a second mode, and a third mode. A second fuel may be provided to the second chamber and a metering valve may be utilized to control the flow of the second fuel to an injector. When the secondary fuel is desired, the reservoir control valve may open to allow the primary fuel to pressurize the first chamber. The result of the pressure on the first chamber causes the piston to apply a pressure to the second chamber. The metering valve may then allow the secondary fuel to flow from the second chamber to an injector.

The invention discloses a rotating disc type fluid mixing device and a working method thereof.The rotating disc type fluid mixing device comprises a mixing disc and a plurality of fluid injection mechanisms, the mixing disc can rotate, and the discharging ends of the fluid injection mechanisms are opposite to the mixing disc so that fluid can be injected to the mixing disc; along with the rotation of the mixing disc, a plurality of fluids on the mixing disc are gradually spread and mixed, and the mixed fluid is thrown out from the edge of the mixing disc. The mixing disc is arranged in the mixing container, and the mixed fluid is thrown onto the inner wall of the mixing container from the edge of the mixing disc and flows downwards along the inner wall of the mixing container so as to perform secondary mixing. The mixing disc is higher than the bottom of the mixing container, a material storage groove is formed in the area, lower than the mixing disc, in the mixing container, and a discharging opening is formed in the bottom of the material storage groove. Various fluids are injected into the mixing disc, the fluids can be spread and mixed along with the rotation of the mixing disc, and the mixing index of a target fluid medium is effectively controlled by controlling the flow speed and the injection angle of the fluids and the rotation speed and the surface damping of the mixing disc.

The application discloses a sidetracking horizontal well large-diameter open-hole filling and acid washing integrated pipe column and a running method thereof. The pipe column comprises an outer pipe column and an inner pipe column, the inner pipe column is arranged in the outer pipe column, and a casing is arranged outside the outer pipe column. The outer pipe column comprises, from top to bottom, a locking device, an outer channel, a releasing device, a fishing device, a slip, a rubber sleeve, a reverse washing device, a filling outer tool, a backflow prevention device, an open-hole screen pipe and an acid washing outer sealing device. The inner pipe column comprises, from top to bottom, an inner channel, a filling inner tool, a check valve, a jetting pipe, an acid washing inner sealing device, a jet tool, a ball catching device and a bottom liquid flow port. The running method comprises the following steps: drilling fluid injection, pipe releasing, normal mud replacement, tubing pressure test, opening of the locking device, filling, reverse well washing without moving the pipe column, normal rotation releasing, segmented acid washing construction, reverse well washing until the outlet is clean and pipe column lifting. The application has the advantages of short construction period, effective prevention of well wall collapse, short construction period, high safety, and good construction effect.

A system for recovering ammonia from an endothermic reaction in a subsurface formation may comprise a subsurface formation; a wellbore fluidly connected to the subsurface formation; a tubing string positioned within the wellbore, wherein the wellbore and an exterior of the tubing string together define a wellbore annulus; a wellhead comprising one or more injection lines and one or more return lines fluidly connected to the wellbore; one or more fluid injection pumps configured to supply an endothermic fluid composition to the subsurface formation through the one or more injection lines and the tubing string, the endothermic fluid composition operable to form ammonia when reacted; and one or more ammonia retention vessels fluidly connected to the return lines for receiving the ammonia through the wellbore annulus.

The present application relates to oil and gas exploration technology field, disclose a kind of fracture conductivity test method and device of formation condition simulation, the present application is based on similarity criterion selects and actual reservoir and similar material of surrounding rock as model raw material, then according to design size manufacturing surrounding rock model and reservoir model with fracturing fracture;Reservoir model and surrounding rock model are assembled to form reservoir surrounding rock model, and fixedly placed on triaxial loading unit;Reservoir surrounding rock model, triaxial loading unit and fluid injection and monitoring unit and displacement detection unit are connected to form fracture conductivity test experimental device, finally based on the experimental device carries out the fracturing fracture conductivity test experiment of reservoir surrounding rock model, and calculates the fracture conductivity coefficient of model.The present application can more accurately simulate the deformation law of fracture in actual reservoir, provide more accurate parameters for oil and gas reservoir numerical simulation model, so as to more accurately evaluate and calculate gas well productivity.

The present application relates to the field of underground fluid intelligent control, and discloses a method for intervention and extraction of ion type ore body solute migration, comprising: establishing a feedback monitoring network for a fluid injection distribution system, obtaining pressure parameters and flow parameters generated by interaction between a controlled branch and a controlled medium; calculating dynamic impedance parameters of internal seepage resistance state of the controlled medium; extracting a follow-up change rate of the dynamic impedance parameters, identifying nonlinear evolution of pore structure induced by flow resistance mutation; comparing the follow-up change rate with a preset threshold value to determine bypass overflow risk; generating a flow dynamic distribution instruction and adjusting valve opening to make the local flow field stable within a preset flow resistance gradient range, wherein the present application solves the problem of sensing loss induced by formation porosity evolution through a dynamic flow resistance feedback intervention mechanism, drives fluid to penetrate into unconsolidated blind areas, and constructs a continuous and dense seepage interception interface.

The application provides a kind of test device and method of gas-liquid competitive adsorption under the simulation reservoir electric field environment, it is related to oil and gas field development experimental simulation technical field, the device includes QCM-D host computer, special electric field flow cavity, high voltage power supply, fluid injection system and signal isolation and shielding system;The method comprises: establishing baseline, monitoring crude oil adsorption kinetics, under the application of high voltage electric field, monitoring displacement gas competitive desorption kinetics, and generating evaluation results based on frequency and dissipation dual parameter changes.The application realizes real-time, in-situ, quantitative monitoring of gas-liquid competitive adsorption microprocess on the surface of QCM-D chip under the environment of kilovolt high voltage electric field for the first time through vertical transmission type non-contact electric field loading cavity and high voltage-weak signal isolation circuit, and can distinguish the different effects of electric field on mass desorption and interface rheological change, providing a reliable experimental tool and analysis method for revealing the micro mechanism of electric field enhanced oil displacement.

The application provides a well blowout control method based on wellhead methane adsorption. In a key stage before well blowout, i.e. when overflow or well kick and other well control accidents occur, a high-density composite kill fluid is formed by compounding methane adsorption material with other necessary drilling fluid additives. Then, the composite kill fluid is injected into the wellbore through a special kill fluid injection device at a position 100-200 meters below the wellhead according to preset injection parameters. The method effectively suppresses the upward sliding of methane gas bubbles invading the wellbore by the high density of the kill fluid, and simultaneously absorbs the methane gas in the wellbore in real time by the methane adsorption material compounded therein. Through the dual action mechanism of density suppression and active adsorption, the method effectively controls the expansion of the gas column and the rise of the pressure in the early stage of gas invasion, thereby preventing the occurrence of well blowout or restraining the development of well blowout.

The utility model relates to a hydrogen fuel cell ejector and steam-water separator integrated structure which comprises a shell, a snakelike coil pipe serving as an ejector pipeline is arranged in the shell, the snakelike coil pipe is provided with four vertical sections formed by vertically bending towards the interior of the shell, and the four vertical sections form a water baffle for realizing steam-water separation. One end of the snakelike coil pipe is communicated with fluid in the hydrogen storage tank, the other end of the snakelike coil pipe is connected with a nozzle for spraying the fluid into a hydrogen reactor, the steam-water separator and the ejector are integrated, and the snakelike coil pipe serving as an ejector pipeline is also used as a baffle in a traditional steam-water separator, so that steam-water separation is realized; the overall structure of the system is more compact; fluid heat in the steam-water separator is used for heating the ejector, the heat utilization efficiency of the system is also improved, and compared with a traditional pipeline connection mode, the flow resistance of fluid in the process of flowing from the steam-water separator to the ejector is reduced.

The utility model provides a multi-nozzle ejector, which belongs to the technical field of ejectors and comprises an ejector main body, a low-pressure fluid pipeline is embedded into the side wall of the ejector main body, a high-pressure fluid pipeline is embedded into an inlet of the ejector main body, a nozzle is arranged at the outlet end of the high-pressure fluid pipeline, and a nozzle is arranged at the outlet end of the nozzle. A nozzle assembly used for adjusting fluid pressure is arranged at a nozzle opening of the spray head, a nozzle opening of the nozzle assembly faces the mixing chamber of the ejector body, and finally mixed fluid with the pressure higher than that of the low-pressure suction fluid but lower than that of the high-pressure movement fluid is discharged through the spray head, so that the mixed fluid enters the mixing pipe through the mixing chamber. The fluid is injected from the mixing pipe to the outside through the diffusion pipe, in the process of injecting the mixed fluid, the size of the injected fluid is adjusted through the nozzles of different specifications located on the spray head, adjustment is conducted according to the application environment, and therefore the fluid injection device can be suitable for fluid injection under different conditions, and the situation that the fluid is too large or too small, and the application process is affected is avoided.

A remotely operated vehicle (ROV) operated fluid stab system for subsea fluid transfer comprises a connector with seal protection and multiple fluid ports, typically more than six fluid ports, to enable multiple flow combinations, both high- and low flow. The connector is relatively short and guide friendly to ease the stabbing operation. The seal is held in place by a nut / threaded insert that is threaded into the stab body.

This application provides a descaling device for drinking water tanks, belonging to the field of drinking water processing technology. The device includes a first tank, a second tank, an electric heating rod, a temperature controller, a support base, a cleaning mechanism, a stirring mechanism, a cleaning fluid injection mechanism, and a weighing mechanism. The support base is fixed to the upper surface of the first tank, the electric heating rod is installed inside the second tank, and the temperature controller is installed on the outer wall of the second tank. This descaling device utilizes a single motor to achieve synchronous rotation of the first and second connecting shafts, i.e., simultaneous cleaning and stirring. The scraper can clean the upper and lower surfaces of the inner cavity of the first tank, ensuring a more thorough cleaning. Furthermore, a weight sensor and a buzzer can promptly replenish the cleaning fluid in the second tank, ensuring that there is no shortage of cleaning fluid and providing a better user experience.

The application discloses a base station for maintaining a sweeping robot, the maintenance tray of the base station has an execution disc body for performing maintenance operations on the parked sweeping robot, wherein the execution disc body can be translated by a lifting mechanism between a first height position and a second height position, the second height position of the execution disc body can be adjacent to the installation position of the wiping module at the bottom of the sweeping robot, therefore, the cleaning mechanism arranged in the execution disc body can implement automatic contact cleaning of the wiping module without affecting fluid injection when the execution disc body contacts the wiping module, and the cleaning mechanism adopts a supply mode in which the fluid sprayed by the spray member is uniformly guided to the wiping module by the flow guide member, which helps to improve the uniformity of cleaning of the wiping module.

The invention relates to the technical field of high-pressure fluid injection and atomization, and discloses a high-pressure water mist stabilizing device which comprises a main body structure, a high-pressure water pipe and a compressed air pipe are arranged at the rear end of the main body structure, and a center water flow channel is formed in the center of the interior of the main body structure in the axial direction. The liquid inlet end of the central water flow channel is communicated with the high-pressure water pipe, a miniature rectification grid is installed in the central water flow channel in the fluid flowing direction, pressure sensors are installed on the two sides of the interior of the main body structure, and a dynamic adjusting nozzle is installed at the front end of the main body structure; a high-frequency vibrating diaphragm is installed on the outlet end face of the dynamic adjusting nozzle, the periphery of the dynamic adjusting nozzle is coaxially sleeved with an annular airflow stabilizing device, and the periphery of the annular airflow stabilizing device is coaxially sleeved with an axial cyclone auxiliary device. The problem that water mist is prone to being interfered by pressure fluctuation and environment airflow is effectively solved, atomization uniformity is improved, and the effective acting distance is increased.

The application belongs to the technical field of oil exploitation, and discloses a high-temperature and high-pressure full-automatic CO2 flooding and burying integrated experimental device and method, which comprises a core clamping system for clamping a core sample, and a pressure measuring system and a confining pressure system are communicated on the core clamping system; a fluid injection system is communicated with the core clamping system; a fluid property measuring system for measuring fluid properties is arranged on the fluid injection system; an output product separation system is communicated with the outlet of the core clamping system through a back pressure adjusting system, and the output product separation system is communicated with a fluid recovery system, a fluid analysis system and a fluid circulation system; and an output product measuring system is communicated with the core clamping system. The application realizes automatic control of the whole set of equipment, is suitable for evaluation of carbon dioxide enhanced oil recovery and in-situ storage, and can also be used for experimental research on related problems such as natural energy depletion development, secondary and tertiary oil recovery, expands the research field and enlarges the application range.

A system, method, and computer program product are disclosed for occlusion detection and / or pressure limiting in a fluid injector system. A fluid injector system may include at least one fluid injector device, one or more drive components, and a control device. The control device may comprise at least one processor programmed or configured to: provide instructions to the fluid injector system to deliver fluid from the at least one fluid injector device at a predetermined fluid flow rate, determine a first fluid pressure measurement within the at least one fluid injector device at a first time, determine a second fluid pressure measurement within the at least one fluid injector at a second time, determine a pressure differential between the first fluid pressure measurement and the second fluid pressure measurement, calculate a change in compliance volume of the at least one fluid injector device based on the determined pressure differential, compare the calculated change in compliance volume with the predetermined fluid flow rate, repeat the steps throughout the fluid injection procedure, and determine whether an occlusion or a partial occlusion has occurred downstream of the at least one fluid injector device.

The invention discloses an experimental device and method for research on dissolved CO2 interphase mass transfer in a crude oil system, and relates to the technical field of oil-gas field development engineering. The experimental device comprises a fluid injection system, a phase reaction and observation system, a pressure balance and control system and an on-line sampling and component analysis system, and can realize rapid energy compensation of two-component fluid, so that pressure change disturbance caused by sampling is inhibited; the interphase mass transfer process and degree of the dissolved CO2 in contact with the light hydrocarbon gas are visually tested through an experimental method.

A wellhead, including a fluid injection system disposed in the wellhead, a fiber injection system disposed in the wellhead and operably connected to the fluid injection system to inject fiber into the fluid injection system. A multimodal fluid injection valve, including a body having a check valve therein, a side pocket physically and fluidly connected to the body, the side pocket including a fiber anchor therein. A method for instrumenting a preexisting gas lift or chemical injection system, including cleaning the chemical injection system, and injecting optic fiber through the chemical injection system. A wellbore system including a borehole in a subsurface formation, a string in the borehole, a surface system operably connecting both a chemical or gas injection device and an optic fiber injection device to a gas lift or chemical injection subsystem in the borehole, and an optic fiber disposed in the chemical or gas injection subsystem.