67 results about "Fluid injection" patented technology

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.

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.

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.

This invention relates to a method for underground tunnel pipe jacking construction using a propulsion sleeve with fluid injection to reduce resistance. The method involves three steps: First, under the excavation of a jacking machine and the jacking action of a horizontal jacking mechanism, two pipe sections are advanced through the starting shaft until the rear section is inserted into the ground to a predetermined depth. Second, the propulsion sleeve of the front section is opened and filled with water. Third, the two pipe sections are then joined together. This third step is repeated until the pipe jacking machine reaches the receiving shaft. This invention aims to achieve the advantage of low resistance during propulsion, solving the problem of high resistance during propulsion in existing pipe jacking construction methods.

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.

Installation (1) for the production of a cryogenic fluid, comprising: a gas circuit to be cooled (2) having an upstream end (21) and a downstream end (22); a set of heat exchangers (5, 6); a pre-cooling device (8); a cooling device (9) comprising a cooling circuit (13); an injection line (7) configured to draw cryogenic fluid from the gas circuit to be cooled (2), the injection line (7) comprising a heating element (11) configured to vaporize the cryogenic fluid into a vaporized fluid, the injection line (7) being configured to allow the injection of the vaporized fluid into the cooling circuit (13); a transfer line (12) for transferring cycle gas from the cooling circuit (13) into the gas circuit to be cooled (2). Abbreviated figure: Fig. 1

The present invention relates to a closed flexible container comprising: (i) flexible or semi-flexible side walls (2) forming a flattened container body, and (ii) a cup-shaped lower portion adapted for the insertion of a fluid injection element of the machine, the container body and the cup-shaped lower portion being formed from an elongated one-piece primary flat preform sheet made of flexible material, preferably a fiber-based material, which is folded into a U-shape about its transverse axis of symmetry, and sealed along its lateral and upper edges, wherein said cup-shaped lower portion is a hollow volume having a concave lower side and convex side sides, and the profile curvature of said lower side is identical to the profile curvature of each of said side sides.

The invention discloses a fracturing method for a mixed rock reservoir. The fracturing method comprises the steps of pre-pressing construction through guanidine gum gel fracturing fluid, slug construction based on low-viscosity anti-drag water and a small-particle-size proppant, multi-stage acid etching construction, continuous sand adding construction through the guanidine gum gel fracturing fluid and displacement operation. According to slug construction, firstly, low-viscosity anti-drag water and a large-displacement and small-particle-size proppant are adopted for liquid injection; then, guanidine gum gel fracturing fluid is adopted for liquid injection, and the liquid injection step is repeated; natural cracks are filled by utilizing the characteristic of fast diffusion of low-viscosity liquid, so that the opening degree of complex cracks in the layer can be improved as much as possible; the multistage acid etching construction adopts two sets of acid liquid systems of pre-acid and retarded acid and a large-displacement injection mode, so that the etching effect of the wall surface of the crack and the seepage capacity from a matrix to the crack are effectively improved, the oil drainage radius is increased, and the fracturing effect is improved; and a sand fracturing means is further combined, so that multiple functions of increasing matrix pore permeability, oil drainage area, transformation volume and the like can be realized, and the transformation effect of the mixed rock reservoir is remarkably improved.

A system for secure access to a fluid injection system is disclosed. The system includes at least one processor programmed or configured to authenticate user access to the fluid injection system, provide data identifying one or more characteristics of a software application used to access the fluid injection system, receive data identifying selected characteristics of the software application used to access the fluid injection system, and provide access to the selected characteristics of the software application used to access the fluid injection system.

The invention relates to the technical field of liquid injection, and discloses a filling system and a filling method.The filling system comprises a valve set, a first valve set, a second valve set, a third valve set and a fourth valve set, the first valve set and the second valve set are communicated with a first opening of a two-way hydraulic unit, and the third valve set and the fourth valve set are communicated with a second opening of the two-way hydraulic unit; the vacuumizing piece is communicated with the first channel and the third channel; the liquid injection part is communicated with the second channel and the fourth channel; the filling system has a vacuumizing state, a first liquid injection state and a second liquid injection state, in the vacuumizing state, the first channel and the third channel are opened, and the second channel and the fourth channel are closed, in the first liquid injection state, the first channel and the fourth channel are opened, and the second channel and the third channel are closed, and in the second liquid injection state, the second channel and the third channel are opened. The first channel and the fourth channel are closed. The filling system can reduce the gas amount in the two-way hydraulic unit, increase the liquid filling amount in the two-way hydraulic unit, and improve the performance and reliability.

The present application relates to the field of edible oil pressing equipment intelligent control, specifically to a rapeseed oil self-adaptive pressing control system, comprising: a data acquisition module, connected with a current sensor, a temperature sensor and a flowmeter through a communication interface, acquiring the main shaft current fluctuation rate, the discharge port fluid outflow temperature gradient and the initial feeding rate within a preset time window; a state observation module, calculating an implicit colloid deposition index based on real-time running state data through a multivariate state observer; a boundary evaluation module, comparing the index with a failure critical threshold to generate a high-risk risk evaluation result or a regular operation evaluation result; a self-adaptive adjustment module, generating an active yielding adjustment instruction or a regular optimization adjustment instruction accordingly, and performing closed-loop control on the main shaft speed, the feeding action, the main shaft gap, the pressing pressure or the cooling fluid injection, so as to balance the extraction efficiency, the equipment continuous availability and the process stability.

The application discloses a deep underground aquifer heat storage simulation experiment system and experiment method, relates to the technical field of underground aquifer heat storage simulation experiment, and the technical scheme of the deep underground aquifer heat storage simulation experiment system of the application simulates the environment of the real deep underground aquifer by adopting a deep aquifer simulation device, simulates the real heat storage process by using a hot fluid injection device and a hot fluid extraction device, and arranges multiple optical fiber temperature monitoring devices and multiple optical fiber pressure monitoring devices in the experimental rock sample at intervals, so that the temperature and pressure of multiple positions of the experimental rock sample before, during and after heat storage can be monitored, the temperature and pressure changes of multiple positions on the three-dimensional space of the heat storage rock are monitored in real time, and the rules of temperature conduction, fluid diffusion, pressure transmission and permeability attenuation in the deep aquifer heat storage process can be effectively analyzed.

The application discloses a nozzle and belongs to the technical field of fluid injection equipment. The nozzle comprises a nozzle body, a first cavity, a second cavity and a third cavity which are sequentially arranged in the nozzle body, the diameters of the three cavities are sequentially reduced, and steps are arranged between adjacent cavities. The second cavity is provided with an injection cylinder, and the first cavity is provided with a compression ring. The injection cylinder is provided with a second channel, an outer side wall is provided with a third channel, the two channels are communicated through a through hole, and an extension part with a fluid outlet and a guide inclined surface is arranged at the end. The application can reduce pressure loss, improve injection stability and uniformity, is convenient to install, and has a long service life.

The application discloses a testing device and method for element sulfur solubility in high-sulfur gas reservoir development process, and the testing device comprises a fluid injection system, a reservoir simulation system, a sulfur solubility metering system and a data tracking and processing system; the fluid injection system is connected with the reservoir simulation system; the reservoir simulation system is connected with the sulfur solubility metering system; the data tracking and processing system is connected with the sulfur solubility metering system; the fluid injection system is used for injecting a sulfur-containing gas sample into the reservoir simulation system and the sulfur solubility metering system; the reservoir simulation system is used for simulating the flow of the sulfur-containing gas sample in a reservoir and a complex interface physicochemical action process; the sulfur solubility metering system is used for metering the sulfur solubility in the sulfur-containing gas sample; and the data tracking and processing system is used for processing data. The testing device in the application comprises two sulfur solubility testing units, so that the testing precision is effectively improved, and the measurement loss and safety risk caused by the flow of the sulfur-containing gas sample in pipelines and valves are reduced.

The present application relates to the technical field of cementing spacer fluid cleaning efficiency, and is a cementing spacer fluid oil-based mud cleaning efficiency evaluation device and method, the former comprising a simulation mechanism, a mud injection mechanism, a mud recovery container, a mud circulating mechanism, a spacer fluid injection mechanism, a spacer fluid recovery container and a cleaning effect detection mechanism, the simulation mechanism comprising a simulated wellbore and a simulated casing, the simulated wellbore being an upwardly open cylindrical container, and the lower part of the simulated casing being located in the simulated wellbore. The present application has a reasonable and compact structure and is easy to use. By setting the simulated wellbore, the simulated casing and the related mechanisms, the mud circulating process and the actual spacer fluid displacement oil-based mud process are simulated, the cleanliness of the inner wall of the simulated wellbore is detected by the cleaning effect detection mechanism, and thus the cleaning efficiency of the spacer fluid on the oil-based mud is evaluated, providing an important reference for the selection of cementing spacer fluid.

A method for the adsorptive processing of an oxygen-containing, gaseous feed gas mixture (3) is proposed, wherein an adsorption plant (100) is used, comprising a component group (110) of two heat storage units (20a, 20b) and an intermediate adsorption unit (10), wherein the method is carried out in successive operating cycles and each of the operating cycles comprises the following steps (a) to (c) in the specified alphabetical order: (a) injecting a first operating fluid (1) at a first temperature level in a first injection direction into the component group (110) until a temperature front generated by the first operating fluid (1) in the component group (110) reaches the adsorption unit (10);(b) Injecting a second operating fluid (2) at a second temperature level in the first injection direction into the component group (110) until a temperature front generated by the second operating fluid (2) in the component group (110) reaches the adsorption unit (10); and (c) injecting the feed mixture (3) at the second temperature level in a second injection direction into the component group until a temperature front generated by the second feed mixture (2) in the component group (110) reaches the adsorption unit (10), wherein the second temperature level is below the first temperature level and the first and second injection directions are opposite to each other and are reversed between operating cycles. A corresponding adsorption unit (100) is also proposed.

A balancing system for a fluid injector system can include a base arm, the fluid injector system being rotatably mounted to the base arm at a pivot point, and a gas spring at least partially disposed within the base arm and mounted to the fluid injector system. The fluid injector system has a weight that can generate an injector moment about the pivot point, and the gas spring can be configured to apply a spring force to the fluid injector system, and the spring force can generate a spring moment about the pivot point. The spring moment can act in an opposite direction to the injector moment to at least partially cancel the injector moment.

This disclosure relates, in general, to devices for ophthalmic procedures, and more specifically, to devices for performing subretinal injections and methods for using the same. In some embodiments, the surgical instrument for fluid injection may include a handpiece configured for user gripping, the handpiece including a first lumen located therein, configured to receive a fluid cartridge containing one or more injection fluids, and a fluid drive system located within the first lumen for driving the flow of one or more injection fluids from the fluid cartridge to a cannula. The cannula may be coupled to the handpiece and configured to be introduced into the eye. The cannula may include a second lumen extending therethrough for receiving one or more injection fluids flowed from the fluid cartridge, and a needle movably located within the second lumen, the needle configured to extend from and retract into the second lumen at the distal end of the cannula.

This invention belongs to the field of experimental technology for oil and gas field development, specifically relating to an experimental device and method for CO2 injection at the gas-water interface to suppress bottom water displacement of natural gas. The device includes a reservoir simulation system, a fluid injection system, a multi-dimensional visualization monitoring system, and a production metering system. The reservoir simulation system uses a sand-filled pipe to simulate a vertical reservoir, and a temperature control module regulates the temperature of the sand-filled pipe. The fluid injection system uses a fixed-point injection pipe with adjustable depth that can penetrate deep into the pipe body to precisely inject CO2 into the gas-water interface. The multi-dimensional visualization monitoring system uses a scanner and krypton tracers mixed with simulated natural gas and sodium iodide tracers mixed with simulated formation water to achieve dynamic monitoring of multiphase fluids throughout the displacement process. This invention can simulate the vertical development characteristics of deep bottom water gas reservoirs with high fidelity, intuitively revealing the mechanism of CO2 inhibition of bottom water coning, and providing precise experimental basis for optimizing gas reservoir development schemes.

This invention describes systems, devices, and methods for injecting environmental remediation amendments into target sites while reducing or eliminating the risk of adverse results.

This disclosure relates to an automated target object separation system and method designed to be isolated from external exposure. In one embodiment, the automated target object separation system may include a fluid injection device; a target object separation section including one or more target object separation devices; an integrated inlet for injecting fluid into the target object separation section using the fluid injection device; a target object integrated outlet for discharging target objects concentrated in a certain direction in the target object separation section; a target object collection section; and a coupling section including at least one of a first coupling section connecting the fluid injection device and the integrated inlet, and a second coupling section connecting the target object integrated outlet and the target object collection section.

This invention relates to a method for simulating the distribution of magnetofluid injection based on the coupling of particle tracking and fluid dynamics, belonging to the field of magnetic nanoparticle movement and particle tracking. The method includes: constructing a two-dimensional geometric model containing healthy tissue, abnormal tissue, and an injection syringe, and setting parameters; constructing a fluid model based on Darcy's law, and calculating the fluid velocity and pressure distribution in the interstitial tissue; coupling the fluid velocity, and solving the diffusion-convection-reaction equation using the finite element method to obtain the macroscopic concentration distribution of the magnetofluid after injection; establishing a particle tracking module, setting discrete particles with the same properties as the magnetic nanoparticles; coupling the interstitial fluid velocity, calculating the drag force and gravity acting on the particles according to Newton's second law, and simulating the particle motion to reveal the microscopic trajectory of the magnetic nanoparticles. This method, by coupling the macroscopic concentration field with the microscopic particle motion, can more realistically simulate the distribution behavior of magnetofluid within complex porous biological tissues.

This application discloses a vibration suppression structure for a heavy-duty punch press base, belonging to the technical field of punch press auxiliary mechanisms. It provides a vibration suppression structure that can reduce the damage to the ground caused by a heavy-duty punch press. The structure includes a hydraulic cylinder, a cover, and a piston body. The hydraulic cylinder includes a base plate, with a rectangular cylinder barrel fixedly connected to its upper surface. The rectangular cylinder barrel is suitable for fluid injection. The cover is fixedly connected to the hydraulic cylinder by bolts and has a guide hole penetrating both the upper and lower surfaces. The piston body includes a rectangular plug plate located within the rectangular cylinder barrel. The rectangular plug plate is suitable for cooperating with the rectangular cylinder barrel to form a sliding pair. A convection hole penetrating both the upper and lower surfaces is opened in the center of the rectangular plug plate, and a guide post is fixedly connected to its upper surface. This application, through a rationally designed piston body and hydraulic cylinder, forms a liquid damping structure. Utilizing the frictional force of the flowing liquid, it converts vibration energy into heat energy, thereby effectively suppressing the vibration transmission of the heavy-duty punch press to the ground and reducing the damage to the ground during operation.

Installation (1) for the production of a cryogenic fluid, comprising: a gas circuit to be cooled (2) having an upstream end (21) and a downstream end (22) connected to a cryogenic storage (40); a set of heat exchangers (5, 6); a pre-cooling device (8); a cooling device (9) comprising a cooling circuit (13); an injection line (7) for drawing cryogenic fluid from the storage (40), the injection line (7) comprising a heating element (11) configured to vaporize the cryogenic fluid into a vaporized fluid, the injection line (7) being configured to allow the injection of the vaporized fluid into the cooling circuit (13); a transfer line (12) for transferring cycle gas from the cooling circuit (13) into the gas circuit to be cooled (2). Abbreviated figure: Fig. 1

The application relates to a LAP grinding fluid shunting device and an improved method thereof, and belongs to the technical field of semiconductor wafer processing equipment, which comprises a lower rack, a grinding rotary table arranged at the upper end of the lower rack, an upper rack arranged at the upper part of the lower rack and surrounding the grinding rotary table, a grinding pressing plate movably and tightly arranged in the upper rack, a lifting cylinder arranged between the grinding pressing plate and the upper rack, a liquid guide ring groove communicated with the grinding pressing plate and arranged on the grinding pressing plate, a grinding fluid injection pipe extended to the liquid guide ring groove and arranged at the side of the lifting cylinder, a pipe clamp arranged between the grinding fluid injection pipe and the upper part of the lifting cylinder and used for fixing the grinding fluid injection pipe, a plurality of liquid distribution grooves in annular distribution and communicated with the liquid guide ring groove and arranged on the grinding pressing plate, and a plurality of liquid distribution holes communicated with the lower end surface of the grinding pressing plate and arranged in the liquid distribution grooves. The device has the characteristics of more uniform shunting, more stable liquid path and more compact structure, and can effectively solve the problems of uneven distribution, easy blockage and unstable flow rate of the grinding fluid in the transmission process.

This invention relates to the field of wind power operation and maintenance training technology, and discloses a wind power bolt hydraulic tightening training system and method based on the GWO standard. The method collects the fingertip pressure distribution matrix, head posture data and breathing frequency of the operator, calculates the virtual fluid injection effectiveness index, and generates a virtual fluid dynamic liquid surface function and liquid surface fluctuation rate. Based on this, it performs virtual breathing light strip rendering, generates operation background sound and provides visual warnings, and calculates the virtual fluid viscosity coefficient and converts it into damping control current to realize variable damping tactile feedback and tactile pre-compression tightening and reverse ejection bidirectional interaction. This invention establishes a tactile communication channel that bypasses language barriers in visual isolation and high-noise environments by constructing a virtual fluid model that couples biological characteristics and mechanical movements. By utilizing flexible damping interlocking and bidirectional tactile interaction, it effectively solves the technical problems of low coordination and high safety hazards caused by lack of perception in collaborative operations in confined spaces.

This invention provides an in-situ CT triaxial multi-field coupling test system and method with end-heat exchange, relating to geotechnical engineering testing. The system includes: a PEEK pressure chamber comprising a cylinder, an upper heat exchange head, and a lower heat exchange head. A flexible diaphragm is provided inside the cylinder, with the upper and lower ends of the cylinder and the flexible diaphragm respectively embedded in upper and lower grooves, forming a confining pressure cavity between the flexible diaphragm and the inner wall of the cylinder. Both the upper and lower heat exchange heads have circulation channels inside, and both have seepage channels extending into the cylinder on their top surfaces; an axial loading device for applying axial deviatoric stress to the PEEK pressure chamber; a temperature control system connected to the two circulation channels to form an end-heat exchange loop; a fluid injection system connected to the confining pressure cavity and the seepage channels; and a CT scanning system. The beneficial effects of this invention are: reducing interference from the temperature control device on X-ray propagation; and establishing a relatively uniform temperature field inside the rock sample.