1010 results about "Experimental Devices" patented technology

The invention relates to a well cementation cement sheath performance simulation experiment device and an experiment method. The experiment device comprises one set of cement cake circulation device, one set of cement sheath performance detection device and one set of cementing face shearing force experiment device. The experiment method comprises the following steps of: simulating the manufacture process of a well cementation test sample under the practical underground warm-pressing condition; detecting the sealing performance and the corrosion resistance of the cement ring; detecting the sealing performance and the corrosion performance of the cement ring; and detecting cementing face shearing force between a casing pipe test sample and the cement sheath and cementing face shearing force between the cement sheath and a stratum test sample. According to the invention, because the adopted casing pipe test sample has the same size and the material with the casing pipe material applied in the practical well cementation, the adopted stratum test sample is a standard artificial stratum test sample, the porosity-permeability characteristic, the strength characteristic, and the fluid characteristic and the like of the adopted stratum test sample are same with the stratum characteristic in the practical well, the invention can be used for truly simulating the dynamic variation of full-size well cementation, and the simulation condition is accurate. The invention can be widely applied in simulation experiments of various well-cementation dynamic variations.

The invention discloses a device for testing explosion, spreading and explosion suppression characteristics of inflammable gas and dust, which comprises an explosion test pipeline, a gas distribution system and a powder spraying system communicated with the explosion test pipeline respectively, an ignition system for igniting the inflammable gas or dust introduced into the explosion test pipeline, a data test acquisition system, and a host computer connected with the data test acquisition system, wherein the data test acquisition system comprises a sensor group distributed on the explosion test pipeline, a signal conditioner and a dynamic data acquisition analysis system. The device has the advantages of reasonable design, simple and convenient operation and use, more test functions and good test effects, and can effectively solve various practical problems of the prior experimental devices.

The invention discloses a component combined torsion experimental device comprising two counter-force frames which are fixed on a foundation terrace, a counter-force beam with two ends which are fixed at the upper ends of the counter-force frames and a counter-force wall fixed at the left side of the counter-force beam, wherein a component is fixed on the foundation terrace. The component combined torsion experimental device is characterized by further comprising a vertical force loading system for applying a vertical force to the component, a horizontal force loading system for applying a horizontal force to the component, a component top linear displacement guide system for meeting requirements of axial deformation, bending deformation and shearing deformation of the component, and a foundation displacement limiting system for fixing the position of the component. According to the experimental device and the method disclosed by the invention, the disadvantages of the existing similar experimental devices and methods are overcome; an experimental principle is scientific and an experimental process is simple to operate and control; the experimental device is convenient to assemble and can be used while being installed; and the experimental device can be circularly used and an experimental result meets a combined torsion performance of the structural component under the horizontal earthquake action, so as to provide experimental guarantees for disclosing a combined torsion mechanism and an anti-seismic property of the structural component.

The invention discloses a hydraulic power pulse oil displacement experimental facility and an experimental method thereof. The experimental facility comprises a core clamping device, an annular pressure supply device, a hydraulic power pulse wave generating device, a water storage tank and an oil storage tank which are connected with the liquid inlet of the core clamping device by virtue of a water pipeline and an oil pipeline as well as a liquid container which is connected with the liquid outlet of the core clamping device; wherein the water pipeline and the oil pipeline are all provided with an intermediate container, a pumping device used for generating high pressure liquid flow and an energy storage tank. The experimental method includes the following steps: firstly, oil displacementexperiment is carried out under the condition that no hydraulic power pulse is added; secondly, oil displacement experiment is carried out while frequency and amplitude hydraulic power pulse wave of core are replaced, and meanwhile hydraulic power pulse auxiliary chemical oil displacement experiment is completed; thirdly, data processing is carried out. The invention has reasonable design, mounting convenience, simple operation and good simulation effect, can improve efficiency of oil displacement by water and crude oil recovery ratio, and experiment of hydraulic pulse wave oil displacement and hydraulic pulse wave auxiliary reservoir core oil displacement by water can be realized.

The invention provides a two-dimensional microcosmic visual thickened oil replacement simulation experiment system and a use method thereof. The two-dimensional microcosmic visual thickened oil replacement simulation experiment system comprises a microcosmic simulation experiment device, a visual data acquisition device, a support device, a multivariate thermal fluid injection device, a confining pressure tracking device and a metering device, wherein the microcosmic simulation experiment device comprises a heating jacket, a clamper and a plate glass microcosmic model; the visual data acquisition device comprises a microscopic shooting device and a computer; the multivariate thermal fluid injection device comprises an ISCO injection pump, an oven and a replacement medium intermediate container, a water intermediate container, a thickened oil intermediate container, a first heat traced pipeline and a bypass pipeline; the confining pressure tracking device comprises an annular pressure tracking pump, an annular pressure tracking pump pressure meter, a vacuum pump and a first vacuum valve. The two-dimensional microcosmic visual thickened oil replacement simulation experiment system give full consideration to characteristics of the thickened oil reservoirs, provides convenience for research on a thickened oil replacement mechanism through microcosmic experiments, has the advantages of low experiment cost, high work efficiency and the like, and can meet with demands on development and research of the thickened oil reservoirs.

The invention provides a diversion acidizing experimental apparatus suitable for multiple permeability max-min ratios and an evaluation method. The experimental apparatus comprises an injection system, a rock core clamping device, a simulation system, a metering system, and a data acquiring and processing system, wherein the injection system comprises a plurality of working solution storage devices which are arranged in parallel and an injection pipeline; an injection pump and a valve are arranged on the injection pipeline; the rock core clamping device comprises a plurality of rock core clampers which are arranged in a thermostat in parallel; the simulation system comprises a working solution flow control device, a temperature control device and an environment pressure control device; the metering system comprises a pressure sensor, a temperature sensor and an electronic scale; the data acquiring and processing system comprises a man-machine interaction device, a data processor and an execution unit. The diversion acidizing experimental apparatus can meet synchronous experiment demand of multiple rock cores, is particularly suitable for a long well-section diversion acidizing experiment or a temporary blocking steering acidizing experiment with strong anisotropism and large permeability max-min ratio, has the advantages of strong comparison of experimental conditions and results and high experimental efficiency on fracturing liquid optimization and reservoir sensitivity evaluation, and has wide application prospect.

The invention discloses a three-dimensional multiwall combined exploration experimental apparatus for a natural gas hydrate and an experimental method thereof. The device comprises a three-dimensional high pressure reactor, an inlet control unit, an outlet control unit, and a data processing unit; the three-dimensional high pressure reactor is provided with a plurality of wells which are extended into a stimulation cavity and comprises a central vertical well and a plurality of vertical side wells; the stimulation cavity is divided into n horizontal layers along the vertical direction; and all vertical well pipes are extended into the horizontal layers with different depths in the simulation cavity respectively. The hydrate can be exploited by simulating a plurality of wells in a combined way; various exploration mechanisms, and exploration trends can be comprehensively researched, and various exploration methods are optimized and comprehensively evaluated; and the experimental apparatus realizes the simulation of hydrate multiwall exploration through experiments, so that the three-dimensional simulation experiment is expanded and experimental basis and reference are provided for the large-scale natural gas hydrate exploration.

An experimental device for simulating deflection fracturing of a fracture comprises a pump, an intermediate vessel portion and a fracturing experimental device connected through a pipeline system; and a simulated wellbore and perforations are arranged in the fracturing experimental device, and fracturing fluid or a temporary plugging agent is injected into the fracturing experimental device by the pump through the intermediate vessel portion and the perforations of the simulated wellbore. Researches on inner fracture deflection experiments and setting laws of the temporary plugging agent are few, and a necessary indoor experimental device is not available. Based on the relative theory, through combination with actual conditions of on-site construction and underground reservoirs, and on the basis of the similarity criterion, a deflection fracturing experimental device of the fracture is designed and produced, and the experimental device can conduct the experimental researches on the performance evaluation of the temporary plugging agents with different types, the setting laws of the temporary plugging agents, the fracture steering rules and the like. The experimental device can conduct the experimental researches on the influences on inner fracture deflection of the temporary plugging agents with different types and the setting modes of the temporary plugging agents and the research results have a certain reference to the on-site construction.

The invention belongs to the technical field of unconventional oil and gas exploitation, and particularly relates to an experimental apparatus for exploiting natural gas hydrate reservoir by means of thermal fluid fracturing. The experimental apparatus for exploiting the natural gas hydrate reservoir by means of thermal fluid fracturing comprises a hydrate core three-axis fracturing system, a fracturing fluid injection system, a natural gas exploitation system and an acoustic emission monitoring system, and is characterized in that the hydrate core three-axis fracturing system is used for fracturing a hydrate core to form hydraulic fracture; the fracturing fluid injection system provides high-pressure thermal fracturing fluid in a hydrate fracturing procedure; the natural gas exploitation system is used for exploiting the natural gas hydrate core in a depressurization manner; and the acoustic emission monitoring system is used for detecting an expansion procedure of the fracture and flowing states of multiple phases of fluid in the fracture. The experimental apparatus has the advantages that a ground stress state of the actual natural gas hydrate reservoir can be truly simulated, and mechanism study and effectiveness evaluation for exploitation for the natural gas hydrate reservoir by means of thermal fluid fracturing can be implemented.

The invention discloses an experimental device and an experimental method of impact drawing-twisting load, belonging to the field of impact dynamics experiments. The experimental device comprises a drop hammer, a test piece, an impact force transfer device, a loading disc, a measuring device and a test piece fixing device; the drop hammer drops down to impact a transmission target, the transmission target moves on a track after being impacted, a base is provided with a prestress loading device, the prestress is applied to an impact target through an adjusting threaded rod, two sides of the impact target are respectively connected to the loading disc through steel wire ropes, each steel wire rope is provided with a force sensor, the disc transfers the drawing force and twisting force to a reinforcing steel bar of the test piece, and a metal strain gauge is attached inside the reinforcing steel bar of the test piece and used for measuring the stress distribution along the anchoring length of the reinforcing steel bar. According to the experimental device and the experimental method, the bond stress distribution of a reinforcing steel bar concrete anchoring reinforcing steel bar under the drawing and twisting load effects of the impact is researched, and a powerful foundation is set for researching a constitutive relation of anchoring bond slip under the effect of complicated stress.

The invention discloses a novel true triaxial fracturing seepage test device and method, and belongs to the field of rock mechanics and oil-gas reservoir exploitation. The device is characterized by mainly comprising a model system (1), a hydraulic fracturing system (2), a triaxial stress loading and control system (3), a pressure measurement system (4), a temperature control system (5), a seepage-pressurization system (6), a pipe valve system (7), a data acquisition and processing system (8), an acoustic emission system (9), an operation table (10), a composite phase state fluid monitoring system (11) and the like. The experimental device can simulate the true triaxial fracturing process of fracturing the porous rock with the pore pressure by different fracturing media under the in-situ condition, consider the interaction influence of formation fluid and the fracturing media, simulate the fracturing process of the reservoir with the natural gas, and solve the problem that existing equipment can only fracture the porous rock with the zero pore pressure. In addition, the fracturing seepage equipment achieves anisotropic permeability measurement by metering the flow in different directions and combining the upstream and downstream pressure difference, and then the permeability values before and after fracturing are compared to determine the anisotropic fracturing effects of different fracturing media.

The invention discloses a visualization experiment device and method for profile control performance evaluation of weak gel of a fractured reservoir. The experiment device comprises a visualization crack module, a water transport intermediate container, a gel transport intermediate container, a displacement pump, a liquid container connected with a liquid inlet of the displacement pump, a measuring cylinder connected with a liquid outlet of the crack module and a vacuum pump for vacuumizing the crack model. The experiment method comprises the following steps: 1, carrying out a dynamic displacement experiment on weak gel in a crack; 2, replacing crack models with different crack widths, and carrying out injection performance and plugging performance evaluation experiments on the weak gel in a plurality of cracks under the conditions of different weak gel viscosities and injection speeds; 3, carrying out data processing. The visualization experiment and device are reasonable in design, favorable in visuality and good in simulation effect, provides convenience for observing the displacement and plugging processes of the weak gel and can be used for testing and recording the injection performance, the plugging performance and the plugging state of the weak gel in the cracks under the conditions of different weak gel properties and different crack widths.

The invention relates to the technical field of experimental devices, and discloses a gas-containing coal hydrofracture-induced dynamic damage simulation monitoring device and method. The device comprises a sealed cavity for containing a cubic coal sample, an acoustic emission monitoring unit, a confining pressure unit, a hydrofracture unit and a gas injection unit, wherein the confining pressure unit extends into the sealed cavity to apply confining pressure onto the cubic coal sample; the gas injection unit extends into the sealed cavity to inject gas into the cubic coal sample; the hydrofracture unit extends into the sealed cavity to perform hydrofracture on the cubic coal sample; and the acoustic emission monitoring unit extends into the sealed cavity to acquire an acoustic emission signal from the cubic coal sample. The device can be used for monitoring and analyzing gas-containing coal hydrofracture-induced dynamic damage with different gas pressure and different coal intensities under different pressure conditions. The device is simple in structure, simple in monitoring method and easy to operate.

The invention relates to a visualization experiment device for simulating temporary plugging of hydraulic fractures by a fiber diversion agent. A pipeline is communicated with the upper end of a simulating shaft steel tube with the lower end sealed, the pipeline is connected with a first high-pressure plunger pump, and the first high-pressure plunger pump is communicated with a liquid storage tank. The pipeline is connected with a fiber adding device through a branch pipeline, and the fiber adding device is connected with a second high-pressure plunger pump. Through holes are formed in the pipe walls on the two sides of the simulating shaft steel tube respectively, a connected body is fixed to the position corresponding to the through hole in each side, the first ends of the two connecting bodies are connected with the side wall of the simulating shaft steel tube in a sealed mode, the second end of the connecting body on each side is connected with a visualization hydraulic fracture simulating device in a sealed mode. The hydraulic fractures are formed in the end faces, connected with the second ends of the connecting bodies, of the visualization hydraulic fracture simulating devices, and liquid flow channels are formed in the connecting bodies. The visualization experiment device is simple in structure and convenient to operate, and technicians can visually observe the temporary plugging depth, the form and other information and the plugging effect of temporary plugging of hydraulic fractures by the fiber diversion agent.

The invention relates to a visual nanometer magnetofluid panel oil displacement experiment device and an experiment method.The visual nanometer magnetofluid panel oil displacement experiment device comprises a middle container, a sand filling panel, a panel holder, magnetic field generators, an injection end pressure gauge, a withdrawal end pressure gauge, a fluid counter and a vacuum pump.The sand filling panel is fixed through the panel holder, drilling is conducted at different positions on the sand filling panel, and rubber pipes are sleeved with drilled holes to simulate well points.The middle container is connected with the injection end of the sand filling panel through a displacement liquid conveying pipeline, the fluid counter and the vacuum pump are connected with the withdrawal end of the sand filling panel through a withdrawal liquid conveying pipeline, and the magnetic field generators are arranged around the sand filling panel.The experiment device is simple in structure, convenient to arrange and capable of simulating the porous medium oil displacement process of different heterogeneous characters, and the experiment process and result can provide a reliable technical basis for oil fields to implement nanometer magnetofluid oil displacement and further excavate potentials of remaining oil, and have certain guidance and reference significance.

The invention discloses an underwater wellhead system load test device and a test method thereof. A portal frame is arranged above a foundation pit, a horizontal slider is mounted on a crossbeam of the portal frame, a vertical motion aid is mounted on the horizontal slider, and a horizontal motion aid is mounted on one side of the horizontal slider. A simulated underwater wellhead guide pipe pile is arranged in the foundation pit, and a simulated wellhead system is fixed in the portal frame through the guide pipe pile. The top end of a marine riser of the simulated wellhead system is hinged to the bottom end of the vertical motion aid, and the bottom of the marine riser is spherically hinged to a blowout preventer of the simulated wellhead system. Circulating load of drifting of a drilling ship or platform, movement of the marine riser and the like and tensile force of the marine riser under the action of load of marine environment can be simulated by the test device, and the rule of influences of various factors on stability of an underwater wellhead and bearing capacity of guide pipes and sensitivity are revealed.

The invention discloses a full-automatic QuECHERS experimental device and an experimental method. The full-automatic QuECHERS experimental device comprises a multifunctional mechanical arm, a cap screwing module, a liquid adding module, a centrifugal module, a salt adding module, a ceramic proton homogenization module, a nitrogen blowing concentration module, a vortex uniform mixing module and anoscillation module, and can automatically complete sample transferring, addition of extraction liquid, extraction salt and ceramic homogenization protons, oscillation uniform mixing, centrifugal separation and vortex uniform mixing actions; A method adopting the full-automatic QuECHERS experimental device to carry out experiments mainly integrates the processes of sample liquid adding extraction,centrifugal separation, solid phase extraction and nitrogen blowing concentration, so that the time is saved, the manual operation is reduced, the automation is improved, and the errors are reduced.

The invention discloses a multi-workbench detecting and experimenting device for artificial hip joint abrasion. The multi-workbench detecting and experimenting device for artificial hip joint abrasion comprises a frame, an artificial hip joint driver and a controller. The artificial hip joint driver which is an artificial hip joint motion synthesizing mechanism comprises an artificial hip joint simulating workbench module, a tester workbench transmission module and a tester workbench loading module. Actual application conditions of the artificial hip joint can be reproduced authentically and reliably and abrasive particles similar to actual applications can be generated. The detecting and experimenting device has multiple workbenches, driven by a single motor, for testing a plurality of artificial hip joints simultaneously and has high compatibility, and is applicable to experiments on different specifications of artificial hip joints, high in work efficiency, low in manufacturing cost, and easy to operate.

The invention discloses a bottom-water coning dynamic simulation experiment device in bottom-water oil reservoir development and a simulation system. The simulation system comprises an upper box body and a lower box body which are integrated in a matching manner, and a percolation clapboard is arranged between the upper box body and the lower box body; the upper box body is provided with an upper cover, and the lower box body is provided with a lower cover; a cavity of the upper box body is filled with storage layer sand bodies and a horizontally arranged simulative horizontal well; a pipeline inlet is arranged on the upper cover, and the sidewall of the upper box body is provided with a fluid outlet; and a fluid inlet is arranged on the lower cover. The experiment device comprises a displacement source, a displacement pump, a middle container, the simulation system, a quality flowmeter and a collecting container. The experiment device disclosed by the invention can exactly influence the pressure drop of a horizontal well shaft and carry out an exacter experiment research on a rise rule of bottom water, the experiment results are realer and more believable, the rise state of the bottom water can be more directly observed, and the important guiding significance is provided for the bottom-water oil reservoir development.

The invention provides a pavement accelerating and loading experimental device, pertaining to experimental facility field. The invented device comprises a main framework, and a rail assembly connected to a rolling assembly is disposed on the main framework. The invented device is characterized in that the rolling assembly comprises both a drive wheel connected to the power device and more than one driven wheels disconnected from the power device, thereby pavement rolling status when vehicles run thereon practically can be reproduced better to enhance accuracy of experimental conclusion and efficiency of the experiment. The invented device is also characterized in that the outer circular surfaces of the loading steel wheel and the return-stroke steel wheel are provided with outwards inclined treads, auto direction guide is implemented, and cylindrical wheel guide is not needed, so that structure is simplified and noise is decreased.

The invention relates to the technical field of oil field exploitation and discloses an experiment device and method for stimulating current-limiting and sectional fracturing of a horizontal well. The experiment device comprises a plurality of sealed stimulated reservoir cavity bodies connected through pipelines, wherein horizontal well tubes are arranged in the stimulated reservoir cavity bodies, a plurality of bullet holes capable of being turned on or off are arranged on the cavity body walls of the horizontal well tubes, adjacent horizontal well tubes are connected through pipelines with pipe diameter selectable, liquid inlet ends of the horizontal well tubes are communicated through a sand mulling system, the connection pipelines are further provided with plunger pumps, flow meters and valves, a plurality of pressure sensors are arranged in the stimulated reservoir cavities and the horizontal well tubes and respectively connected with a data acquisition control panel through cables, and the data acquisition control panel is connected with a computer. The experiment device can perform stimulation experiments on sectional fracturing of the horizontal well according to the underground reservoir distribution condition so as to study the hole friction and erosion and the on-way friction resistance law during the sectional fracturing construction of the horizontal well, and bullet hole parameters can be optimized; and optimization on the horizontal sectional fracturing construction parameters can be facilitated.

The invention discloses an experimental device for simulating heavy oil reservoir gas auxiliary steam thermal oil recovery and a special model system of the experimental device. The model system consists of a cylinder body. Openings at both ends of the cylinder body are respectively matched with an upper cover and a piston in a sealing mode. The piston is fixed on the cylinder body through a piston fixed pressing cap. At least one fluid in-out hole is formed in the upper cover, and the fluid in-out hole extends to a cavity of the cylinder body and connected with a well model connecting port. The well model connecting port is used for connecting well models. At least one data acquisition port is arranged on the cylinder body. The data acquisition port extends to the cavity of the cylinder body, the piston fixed pressing cap is provided with a liquid inlet, and the liquid inlet extends to a cavity between the piston and the piston fixed pressing cap. The experimental device can carry out precise experiments over a production increasing mechanism and an effect of gas improving steam stimulation and steam drive, the experimental results are genuine and believable, and the device has an important significance for gas auxiliary steam thermal oil recovery and development.

The invention relates to an experimental apparatus and an experimental method for simulating gas-well annulus pressure carrying and air cutting processes. A central cylinder is the key structure of the experimental apparatus, and comprises a rock-core clamping cylinder, a rubber sleeve, an upper sealing cover, a lower sealing cover, a central column, an upper-end pressure-detecting cylinder and a lower-end air inlet cylinder. A rock core is disposed in the rock-core clamping cylinder. Annulus protective liquid with certain height is injected into the central cylinder from a valve II, and the whole device is guaranteed to be in a sealing state. Air is injected into the central cylinder through an air compressor to realize simulation of a gas-well annulus pressure carrying process. In addition, on the condition that the rock core is not mounted, experimental to-be-tested liquid with certain height is injected into the central cylinder, and an air cutting process can be simulated. The experimental apparatus is simple in structure, convenient to assemble and reliable in performance, two different experimental processes can be simulated by one experimental device, and high popularization and application value is provided.

A simulation experimenting device for high-temperature and high-pressure reinforced well wall drilling fluid comprises a crack leaking autoclave body system, a drilling fluid conveying system and an industrial control computer. By means of the device, the leaking and plugging process of cracks with variable or fixed widths under different formation conditions such as temperatures, pressures and permeation rates, the key parameters such as the drilling fluid leaking speed, the pressure bearing capability of a plugging belt and the variation of the widths of the cracks can be monitored, a drilling fluid reinforced well wall action evaluation experiment can be achieved, and the defects that a conventional drilling fluid leakage plugging experimenting device cannot simulate permeating formations and is unchangeable in width of cracks are overcome.

The invention discloses a method for detecting nucleic acid, which comprises the following steps that: (1) a lock type probe and an amplification primer are designed and synthesized according to the sequence of a target nucleic acid molecule; (2) a DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) reverse transcription product is treated in advance, and then is mixed with the lock type probe, ligase and buffer solution, and heating is carried out to inactivate the ligase after the ligation; (3) a ligation product is taken as a template, and the amplification primer is utilized for roll loop amplification; (4) after the roll loop amplification is completed, magnetic beads are added into a roll loop amplification system to gather the amplification products, and the whole material is transferred to filter paper to be aired; and (5) the surface of the filter paper is observed by naked eyes to judge whether the DNA or RNA contains the target nucleic acid molecule or not. The method requires simple experimental devices, only needs a pipettor and a constant temperature heater to complete the whole detection process, and is very low in cost compared with the conventional method.

The invention discloses an experimental system for simulating fuel spray wetted walls. The experimental system comprises a high-pressure oil pump, an oil tank, a fuel heating system, an oil sprayer, a constant-volume bomb, a constant-volume bomb heating system, a vacuum pump, a temperature sensor, a pressure sensor, external test equipment, a control system and a high-pressure oil rail. The experimental system has the advantages that oil spray wall hitting procedures in actual cylinders can be accurately simulated, a plurality of variable conditions can be controlled by the control system, comprehensive and detailed research on the fuel wall hitting procedures can be carried out, the experimental system can be matched with optical measurement equipment, accordingly, change rules of micro-variables in fuel wall wetting procedures can be intuitively reflected, and intensive research on fuel wall wetting mechanisms of engines can be carried out by the experimental system; experimental devices are easy and convenient to operate, and measurement results are important reference for improving the early spray performance of the engines.

The invention relates to an experimental device for simulating multi-component fluid throughput thermal recovery. The experimental device comprises a multi-component injection system (S1), a yield collection system (S2) and a model system (S3). The multi-component injection system comprises a water vapor generating device, a nitrogen generating device and a carbon dioxide generating device. Multi-component fluid generated by the multi-component injection system is injected into a well model of the model system through a middle container. The outlet of the well model is connected with a yield collection device in the yield collection system. According to the experimental device for simulating multi-component fluid throughput thermal recovery, the influences of multi-component fluid injection process parameters on thickened oil thermal recovery can be accurately reflected, and the experimental device is suitable for experimental simulation in the oil-gas field development and exploitation project.

The invention discloses a multifunctional fluid mechanics experimental device. The multifunctional fluid mechanics experimental device comprises a water source, a reynolds experiment pipe, a Bernoulli experiment pipe, an on-way resistance pipe, a local resistance pipe, a valve local resistance measuring pipe, a pitot pipe, a Venturi meter, an orifice plate flowmeter, a piezometer pipe, a measuring groove, selection valves and adjusting valves; the reynolds experiment pipe, the Bernoulli experiment pipe, the on-way resistance pipe, the local resistance pipe, the valve local resistance measuring pipe, the Bernoulli experiment pipe, the venture meter and the orifice plate flowmeter form into six testing pipe sections in a parallel mode; the selection valves are installed at inlet sections of the experiment pipe sections; the inlet sections of the experiment pipe sections are connected with a water source through the selection valves; the adjusting valves are installed at outlet sections of the experiment pipes; the outlet sections of the experiment pipes are connected with the measuring groove through the adjusting valves. According to the multifunctional fluid mechanics experimental device, the separated experiment pipelines are integrated in one experiment device, frequent assembling and disassembling is avoided, leakage is reduced, the experiment pipelines are clear at a glance and not easy to mix, and user understanding of the experimental principle is facilitated.

The invention relates to the field of petroleum drilling and completion technology tests, and discloses a shaft-simulating multifunctional test experimental device which mainly consists of such instruments as a shaft-simulating multifunctional test bed, a plunger pump, a data controller, an air compressor, a liquid storage tank and a waste liquid tank. The shaft-simulating multifunctional test bed revolves and axially moves through a center pipe, and can test the sand carrying capacity of a rotary sand flushing technology of a horizontal well; annular multi-phase flow parameters of a vertical well, an inclined well and a horizontal well can be observed through a lifting bracket of 0-90 degrees; the conventional or micro borehole drilling and completion experimental simulation can be performed through changing the size of a shaft; a crack simulator is combined to perform the test verification for hydraulic jet fracturing seal and in-hole boost mechanisms; and a pulse jet device can be combined to test a pulse jet flow field. The shaft-simulating multifunctional flowing test system is wide in purpose, is convenient and efficient, and can develop such multiple drilling and completion fluid experimental researches as rotary sand flushing, shaft multi-phase flow, hydraulic jet fracture and pulse jet.

The invention provides a fault-passing tunnel excavation simulating experimental device. Short steel plates hinged in pairs are used for simulating nonuniform surrounding rock pressure caused by bulk density difference or elevation difference of a surrounding rock. The hinged short steel plates can transfer a shearing force but not transfer a bending moment, so that the possibility of producing shearing damage due to sudden pressure change is avoided while the nonuniform surrounding rock pressure is simulated; through a gauze, the thickness and the dip angle of a fault can be flexibly controlled, so that an actual fault model is accorded better, and especially in a loose and soft fault, the simulating effect is more obvious; horseshoe-shaped soft rubber pads at the two ends of a tunnel lining model not only can prevent a surrounding rock material from entering the tunnel, but also can prevent occurrence of a phenomenon that the tunnel lining model is damaged or tempered glass is cracked due to concentrated stress caused by direct contact between a tunnel structure and the tempered glass on the front and back sides under the action of a pressure. The fault-passing tunnel excavation simulating experimental device can research quantitative influence of the geological fault on the tunnel by controlling a single variable.