973 results about "Wellhead" patented technology

The derrick type continuous oil pipe integrated sidetrack drilling operation device is provided with a base, a derrick, an injection head installation support, an injection head, a lifting oil cylinder, a hydraulic clamp and a remote operation room, one side of the derrick is fully opened, the derrick and the base are both of a lightweight rigid structure, and the injection head is installed at the top of the derrick for remote control. After the base is arranged at a wellhead and is unfolded and installed, one side of the base is connected with the lifting oil cylinder, the other side of the base is in butt joint with the ramp and the pipe rack, the derrick is rapidly erected through the lifting oil cylinder, and after the injection head is hoisted to the top of the derrick, the injection head is rapidly installed and subjected to alignment adjustment through the injection head installation support and the adjusting structure. Meanwhile, the tool rod and the elevator are arranged at the injection head, the tool rod is pulled and placed through the injection head, an oil pipe column and a sucker rod can be independently lifted or lowered, the oil pipe column and the sucker rod are pushed into a ramp from one side of an opening of a derrick, integrated sidetrack drilling operation of the coiled tubing is achieved, and sidetrack drilling efficiency and operation safety of the coiled tubing are remarkably improved.

The invention relates to the technical field of oil field workover treatment, in particular to a rapid blowout wrecking device and method for minor repair operation. According to the technical scheme, a lifting mechanism is installed on workover treatment equipment through a fixing mechanism, a rotary speed reducer is installed at the upper end of the lifting mechanism, a blowout wrecking rotating arm is installed on the upper portion of the rotary speed reducer, the outer end of the blowout wrecking rotating arm is fixedly connected with a fixing base, a turbine is installed in the fixing base, and a rotating short section is installed in the center of the turbine. The lower end of the rotary short section is movably connected with a full-bore plug valve; the worm is installed on one side of the turbine, the worm is driven by the hydraulic cycloid motor to rotate, the worm drives the turbine and the rotary short section to rotate, then the full-bore plug valve is driven to be rotationally connected to an oil pipe of a wellhead, then the switch knob is closed, and blowout wrecking is completed. The full-bore plug valve is installed through mechanical rotation, the follow-up loading function is achieved, potential safety hazards caused by manual installation of the full-bore plug valve are avoided, and rapid blowout wrecking work of blowout is achieved.

The invention provides a method and a device for predicting a steam cavity in steam flooding by using an overlap factor, and belongs to the technical field of oil field oil extraction. The method comprises the following steps: determining an incidence relation between wellhead production characteristics of a first production well and a well bottom average temperature value, and determining a well bottom average temperature value of a second production well according to wellhead production characteristics of the second production well by utilizing the incidence relation; determining overlap factors of different displacement layer sections of the first production well; weighting the well bottom average temperature value of the second production well by using the overlay factor of each displacement layer section, and obtaining the well bottom correction temperature of each displacement layer section in the second production well in a one-to-one correspondence manner; and comparing the well bottom correction temperature of the second production well with the well bottom temperature of the steam injection well in the well group where the second production well is located, comparing the well bottom pressure of the second production well with the well bottom pressure of the steam injection well, and identifying the steam cavity of each displacement layer section of the second production well. By means of the method, rapid, accurate and low-cost recognition of the steam cavity is achieved.

The invention discloses an intelligent prediction method for a fracturing wellhead yield increase effect, and the method comprises the steps: carrying out the fusion collection, standardization and embedded dimension reduction of multi-source real-time and historical data, environment and geological parameters and expert experience, cooperatively extracting high-dimensional features, evaluating the uncertainty of the features through a Bayesian model, and carrying out the weighted input of a reinforcement learning architecture, thereby achieving the intelligent prediction of the yield increase effect of a fracturing wellhead. According to the method, causal reasoning and deviation correction are carried out in combination with physical and business indexes, high consistency of a strategy and a multi-target business index is realized by dynamically adjusting a reward function, and self-adaptive retraining and robust optimization of a model in extreme environments such as high noise and data missing are realized through field evaluation regression analysis of output. According to the method, the adaptability and prediction accuracy of the fracturing yield increase prediction and optimization system to complex working conditions are remarkably improved.

A method for performing simultaneous operations at a wellsite comprising two or more adjacent wellheads, each respectively connected to a well, may include the following steps: providing a fluid supply via upstream equipment to an intermediate supply point; fluidly connecting the intermediate supply point to a single wellhead, the fluidly connecting comprising connecting a first end of a flexible pipe to the intermediate supply point and a second end of the flexible pipe to a first wellhead; performing a wellbore operation on a first well using the fluid supply from the upstream equipment supplied to the first wellhead; disconnecting the second end of the flexible pipe from the first wellhead; and connecting the second end of the flexible pipe to a second wellhead.

The application provides a downhole hydraulic back-off tool, characterized in that the back-off tool comprises a hydraulic anchor, a hydraulic back-off device and a telescopic compensation mechanism, and the power part is composed of a driving cylinder, a driving pin, an anti-rotation cylinder, a rotating cylinder, a third spring, a central shaft, an inner ratchet mechanism, a driving shaft and an outer ratchet mechanism; the one-way left-rotation part of the hydraulic back-off device comprises the inner ratchet mechanism and a second spring, and the anti-rebound right-rotation part comprises the outer ratchet mechanism and a first spring. The application makes all the torques of the workover operation be transmitted to the fishing tool through the relative movement of the inner ratchet mechanism and the outer ratchet mechanism from the hydraulic back-off device, and the working string does not need to transmit the torque to the downhole through the surface wellhead rotary table or the top drive, the hydraulic anchor is anchored and unanchored through the pressure in the string, and the anchor provides a fulcrum function for the timely cooperation of the power torque output of the hydraulic back-off device; the telescopic compensation mechanism is used for compensating the axial displacement of the back-off tool.

The invention belongs to the technical field of geothermal energy development and utilization, and particularly relates to efficient extraction equipment for a deep geothermal exploitation well, which comprises a plurality of water pumping devices, the plurality of water pumping devices are sequentially communicated in series through a plurality of extension pipe fittings, and the water pumping device close to a wellhead is fixedly connected with a steel wire rope on hoisting equipment; the water pumping device comprises a water pumping mechanism, a well cementation assembly and a guide mechanism, the outer wall of the water pumping mechanism is sleeved with the well cementation assembly, the well cementation assembly is used for making friction contact with the well wall so as to keep the working position of the water pumping mechanism in a well, and the guide mechanism is arranged at the bottom end of the water pumping mechanism and used for guiding the water pumping mechanism to work. And the guide mechanism is used for smoothly lowering the water pumping mechanism into the well and keeping the water pumping mechanism coaxial with the well body. It is guaranteed that the water pumping mechanism is stably fixed in a well, smoothly lowered to the bottom of the well and always coaxially positioned with the well body, and the stability of extraction operation is improved.

The invention discloses electric-drive automatic workover operation equipment for a vertical derrick. The electric-drive automatic workover operation equipment comprises a self-propelled chassis, the vertical self-balancing derrick, a traveling block guide rail, a traveling block, an electric winch, a wellhead automatic platform and a hydraulic pipe conveying machine. The self-propelled chassis is installed at the bottom of the main vehicle and provided with four stepping supporting legs, and a stepping device is arranged below each stepping supporting leg. A balance beam type crown block is mounted at the top end of the upright self-balancing derrick; the traveling block guide rail is arranged along the front side of the upright self-balancing derrick; the traveling block moves up and down along the traveling block guide rail; the wellhead automatic platform is integrated with a hydraulic clamp, a righting manipulator and an automatic hoop finder; the hydraulic pipe conveying machine adopts a horizontal-to-vertical bidirectional lifting mechanism, the vertical self-balancing derrick is configured, a loaded crown block is small in offset, the derrick is configured with a traveling block guide rail, a traveling block moves along with the guide rail and is small in wind load drift, the wellhead pipe column handover processing efficiency is high, and the time for a traveling crane system of the workover rig to participate in pipe column handover is shorter; and the overall efficiency of the automatic tubular column processing operation of the workover rig is improved.

The invention discloses a hydrothermal type geothermal efficient exploitation and irrigation intelligent operation maintenance system, and the system comprises a data processing module which is used for carrying out the multi-dimensional and multi-physical-field precise digital mapping of a geothermal reservoir to ground equipment, and obtaining the dynamic change process of the geothermal reservoir and the ground equipment under different working conditions; the data processing module comprises a thermal reservoir geologic model, a THMC coupling simulation model and a ground facility system model, the thermal reservoir geologic model is used for representing a three-dimensional space structure and initial physical property parameter distribution of a geothermal reservoir, and the THMC coupling simulation model is constructed based on the geologic model. The ground facility system model simulates fluid flow, heat transfer, rock mechanics and chemical reaction processes and is used for simulating the working state of ground equipment from a wellhead of a production well to a wellhead of a recharge well; and the execution module is used for driving the variable frequency pump to perform stepless speed regulation so as to change the total flow and pressure of the system, and driving the regulating valve to perform opening regulation so as to realize flow distribution and pressure control, thereby forming an intelligent control loop.

The invention provides a method and a device for determining earthquake control after hydrofracture-induced microseism, and relates to the technical field of geothermal resource development. The method comprises the steps that in response to the fact that it is determined that a microearthquake is induced in the hydraulic fracturing process, first pressure data of a fractured well mouth in a first time period before the microearthquake occurs and second pressure data of the fractured well mouth in a second time period after the microearthquake occurs are obtained; and determining the type of the microseism according to a target pressure change rate determined by the first pressure data and the second pressure data. The types of the micro-earthquakes comprise a first type of micro-earthquakes and a second type of micro-earthquakes, and the first type of micro-earthquakes represent micro-earthquakes induced by pore pressure rise of a fault due to the fact that fracturing fluid enters the fault; the second type of microseism characterizes a microseism induced by a load change of a fault due to a local stress change caused by hydraulic fracturing construction. And determining a target control measure for controlling the microseism to be induced again according to the type of the microseism.

The invention provides an adsorption pressure return type blowout control method, which comprises the following steps: intervening when well control abnormity occurs at the beginning (such as overflow precursor), compounding a methane adsorbent and a conventional drilling fluid additive to prepare high-density composite well control fluid, and injecting the high-density composite well control fluid into a shaft by a special device at a position 100-200m below a wellhead according to preset displacement and pressure parameters. According to the method, bubbles in a shaft are adsorbed through an adsorbent, the slippage speed and the gas phase volume fraction are reduced, and the synergistic effect of static pressure constraint and active adsorption is achieved. Therefore, back pressure fluctuation can be stabilized in the early stage of gas cut, gas column expansion and pressure rising are limited, the risk of pressure leakage and secondary eruption is reduced, the purpose of preventing or restraining blowout is achieved, and the gas cut blowout prevention device is suitable for complex working conditions such as fractured stratums, deep water, high temperature and high pressure and narrow-density windows.

The invention discloses an intelligent tracer liquid production profile transient monitoring interpretation system and interpretation method, and relates to the technical field of oil and gas exploitation, the system comprises a tracer deployment module, a wellhead sampling module, a transient flow simulation module and an interpretation analysis module; according to the method, intelligent chemical tracer deployment and transient flow model analysis are combined, non-intervention type monitoring is achieved by pre-burying the oil-soluble / water-soluble inert tracer on the outer side of the horizontal well completion pipe string, and the limitation that traditional production logging needs downhole operation is broken through; a full-flow one-dimensional single-phase transient flow model covering a horizontal shaft, an inclined well section and a surface pipeline is established, pressure flow distribution is iteratively solved by adopting a discrete difference method, a tracer group flushing model and an arrival model are connected in parallel, and the liquid production speed and profile contribution of each production layer are accurately analyzed by inverting wellhead high-frequency sampling data. Real-time dynamic monitoring under complex well conditions can be achieved, production interference is avoided, and the inert tracer is resistant to high temperature and corrosion environments and wide in applicability.

The invention relates to the technical field of mud liquid level monitoring, and discloses a drilling mud liquid level monitoring and alarming device which comprises a drilling mud pool, the drilling mud pool is used for an oil and gas field drilling fluid circulating system, the drilling mud pool receives and deposits drilling fluid returned from a wellhead, and the drilling fluid is recycled by a mud pump after being treated; the monitoring module comprises a bearing frame, a liquid level monitoring assembly, a fluctuation response assembly and a cleaning control assembly; and the cleaning control assembly is associated with the fluctuation response assembly and the liquid level monitoring assembly and is configured to drive the cleaning control assembly to work so as to clean the surface of the receiving end of the photoelectric liquid level sensor when the fluctuation response assembly acts in response to fluctuation. Through the fluctuation response assembly and the cleaning control assembly, automatic cleaning of the liquid level monitoring assembly is achieved, and the problem that monitoring data are inaccurate or even invalid due to the fact that a traditional sensor is prone to contamination in a severe mud environment is effectively solved.

The invention relates to the technical field of casing heads, and discloses a self-locking mechanism and a casing head for a petroleum wellhead, the self-locking mechanism comprises a primary casing head body, a secondary casing head body and a self-locking unit, the secondary casing head body is arranged at the upper part of the primary casing head body, and the self-locking unit is arranged at the upper end of the primary casing head body; the self-locking unit is triggered when the second-stage casing head body is installed on the first-stage casing head body, and the second-stage casing head body is locked. According to the self-locking mechanism and the casing head for the petroleum wellhead, the self-locking unit is arranged between the first-stage casing head body and the second-stage casing head body, when the second-stage casing head body is installed on the first-stage casing head body, the rack is extruded to move downwards, the rack pushes the sleeve to rotate, and therefore the lock pin is pushed to move and be locked; the lock pin is inserted into the clamping groove of the second-stage casing head body, so that the second-stage casing head body and the first-stage casing head body are fixed.

The utility model provides a hoop for removing a residual flange of an out-of-control wellhead, the hoop comprises a hoop body, a hoop fixing mechanism and a handle, the hoop body comprises a plurality of hoop petals forming a circular ring shape, and the hoop petals are fixed through the hoop fixing mechanism; an annular groove is formed in the inner side of the hoop body. The handles are evenly distributed on the outer side of the hoop body in the circumferential direction at intervals. The utility model has the beneficial effects that the structure is simple, the installation is convenient, and the operation safety can be ensured.

The invention relates to the technical field of oil and gas well mouth metering, in particular to a well mouth metering device. The wellhead metering device comprises a central pipe and an outer pipe installed outside the central pipe, a liquid return cavity is defined between the central pipe and the outer pipe and connected with one end of the central pipe, the other end of the central pipe is a central pipe insertion end used for being inserted into a wellhead oil outlet pipe, and a sealing device is arranged at the central pipe insertion end. A wellhead connecting structure is arranged on the central pipe and / or the outer pipe, when the wellhead connecting structure is connected to a wellhead, the sealing device is located on the side, close to the wellhead, of the wellhead oil conveying pipe, an outlet of the liquid return cavity is located in an oil outlet pipe of the wellhead, and an output liquid metering assembly is arranged on the central pipe or between the central pipe and the liquid return cavity. The liquid inlet and the liquid outlet of the wellhead metering device are both arranged in the wellhead oil outlet pipe and are connected through the wellhead connecting structure, so that a worker only needs to carry out one-time connection work, and the wellhead metering device is convenient to install.

This disclosure presents a method for dispensing compressible fluids, specifically natural gas, using a heat exchanger to optimize temperature and pressure conditions. The process involves receiving a first supply stream at an initial temperature and expanding a second supply stream to a lower pressure. Heat is exchanged between these streams within the heat exchanger, reducing the temperature of the first stream for efficient dispensing. This method is particularly suited for filling compressed natural gas (CNG) tanks, ensuring continuous operation without interruptions. The system maintains the first stream's pressure below 4,500 psig and achieves a target density based on reference conditions. Additionally, the method supports integration with natural gas pipelines, maintaining suitable discharge temperatures. The approach enhances energy efficiency by eliminating the need for auxiliary refrigeration, making it ideal for onsite wellhead applications. This innovative system offers a streamlined solution for CNG operations, promoting economic and environmental benefits.

The invention provides a natural fracture acid fracturing process parameter optimization method and device, equipment and a medium, and the optimization method comprises the steps: obtaining geological and engineering data of a target block, carrying out the fitting of the geological and engineering data to obtain a natural fracture fitting model, determining the natural fracture fitting parameters according to the natural fracture fitting model, and carrying out the acid fracturing process parameter optimization of the target block. Further establishing a pressure drop characteristic parameter model and a natural fracture characteristic parameter model by using actually measured pressure data, and further establishing a productivity prediction model; and according to the productivity prediction model and the natural fracture fitting model, optimizing the acid fracturing process parameters of the natural fractures. According to the method, the condition of natural fractures encountered by underground hydraulic fractures is innovatively and dynamically judged according to the wellhead pressure change rule in the multi-stage alternate acid fracturing process, parameters can be dynamically adjusted on this basis to achieve dynamic optimization of a pump injection program, and a basis is provided for whether the natural fractures are transformed or not in real time in the construction process; and a new thought and a new method are provided for acid fracturing parameter design and optimization.

A method for tripping out of an underbalanced well, the method comprising: determining the drilling fluid balance density and the annular pressure loss outside the drill pipe; determining the time for oil and gas to surge to the wellhead and the tripping time to the depth of the first injected gas plug, and comparing them to determine whether the conditions for safe operation are met; if the conditions for safe operation are met, determining the density and volume of the first gas plug based on the drilling fluid balance density and the annular pressure loss outside the drill pipe; tripping out of the well based on the density and volume of the first gas plug, completing the tripping out of the first gas plug; determining the density and volume of the gas plug at the depth near the wellhead using a preset method based on the depth after the tripping out of the first gas plug; and completing the tripping out of the gas plug near the wellhead based on the determined density and volume of the gas plug at the depth near the wellhead.

The utility model relates to the technical field of oil water injection exploitation, and provides a wellhead high-pressure fine filter in oil water injection exploitation, which comprises a filter box, a box cover is detachably connected to the filter box, a water inlet pipe is communicated to the box cover, a drain pipe is communicated to the bottom of the filter box, and the drain pipe is connected with a water injection pipe through a flange; two fixing plates are fixedly connected to the lower end face of the box cover and attached to the inner wall of the filter box in a sliding mode, a plurality of mounting plates are fixedly connected to the fixing plates at equal intervals in the vertical direction, at least two springs are fixedly connected to each mounting plate, the free ends of the springs on the same horizontal plane are fixedly connected with a mounting frame, and a filter screen is fixedly connected into the mounting frame. According to the utility model, after the filter screen is blocked, the blocked filter screen can be dredged without dismounting the filter screen, so that the influence on the working efficiency is avoided.

The utility model discloses a pipeline port opening and closing device at a rainwater and sewage confluence position, which is correspondingly arranged at a port of each drainage pipeline in a catch basin and comprises vertical opening and closing tracks arranged on two sides of the drainage pipelines, and a port opening and closing plate is assembled between the two vertical opening and closing tracks in a limiting manner. An opening and closing plate traction device is connected between the top end of the port opening and closing plate and the well wall of the intercepting well, an opening and closing plate auxiliary fixing device is further installed on the side, away from the drainage pipeline, of the port opening and closing plate, and an opening and closing plate limiting gap is formed between the opening and closing plate auxiliary fixing device and the port of the drainage pipeline; the end opening and closing plate can be pulled upwards through the opening and closing plate traction device at the well mouth of the intercepting well, so that the end opening of the drainage pipeline is opened and kept; when the end opening of the drainage pipeline needs to be closed, the end opening and closing plate is lowered through the opening and closing plate traction device till the bottom end of the end opening and closing plate makes contact with the bottom wall of the intercepting well, so that well descending operation is not needed, repeated opening and closing operation can be conducted on the end opening of the drainage pipeline, and operation is easy, convenient and fast.

The invention relates to the field of petroleum and natural gas exploitation engineering, and discloses a multi-layer gas injection working condition intelligent early warning method and system based on real-time data, a medium and equipment. The method comprises the steps that a corresponding dynamic attenuation or dynamic increasing dynamic reference model is built for each gas injection layer based on historical real-time gas injection amount data, obtaining the predicted gas injection amount of the layer so as to determine the real-time flow interval of each gas injection layer; a moving average model of wellhead gas injection pressure is established for each gas injection position, a pressure moving average value changing along with time is obtained so as to predict a wellhead gas injection pressure value at the current moment, and a real-time pressure interval of each gas injection position is determined; according to the real-time flow interval and the real-time pressure interval, whether the real-time flow and the real-time pressure collected at the current moment exceed the corresponding interval ranges or not is determined, if the real-time flow and the real-time pressure exceed the ranges and set time, early warning is carried out, the early warning process of each layer is achieved through one thread, and multi-layer synchronous early warning is achieved through multiple threads.

The utility model relates to a wellhead gas production device, and belongs to the field of gas production. Comprising a gas production tree and a tee joint, an oil pipe connector flange of the gas production tree is provided with an oil pipe pipeline, the end, away from the oil pipe connector flange, of the oil pipe pipeline is connected with the tee joint, a sleeve connector flange of the gas production tree is provided with a sleeve pipeline, and the end, away from the gas production tree, of the sleeve pipeline is communicated with the oil pipe pipeline through the tee joint. A conveying pipe is arranged on the tee joint, a ground wellhead sledge is arranged at the end, away from the tee joint, of the conveying pipe, and the tee joint and the conveying pipe make contact with the ground. The oil pipe pipeline and the casing pipeline are communicated, so that the device can adapt to different production stages, repeated construction is not needed, management is simple, and cost is saved; the tee joint, the conveying pipe and the ground wellhead skid are all in contact with the ground, climbing operation can be omitted, safety risks are effectively eliminated, and the ground wellhead skid is skid-mounted, so that site construction time can be greatly shortened.

The invention relates to a petroleum casing pipe buckling detection method and device, a storage medium and electronic equipment, and the device comprises an elevator which can suspend and fix a first petroleum casing pipe which extends out of a wellhead and penetrates through a wellhead platform in a lifting manner; the lower casing coupling is hooped at the top end of the first oil casing; the buckling device is clamped on the lower casing coupling in an open state, and is closed and tightly contacted with the lower casing coupling after being clamped on the lower casing coupling; the wireless sensor assembly is arranged on the buckling device and used for detecting buckling angle information and buckling pressure information between an upper casing joint and a first oil casing in the buckling process that the upper casing joint of a second oil casing is buckled to the first oil casing connected with the lower casing coupling in a hooping mode through the closed buckling device. And if the buckling angle information exceeds the buckling angle range and / or the buckling pressure information exceeds the buckling pressure range, sending buckling detection abnormal information to a preset terminal device. And the buckling precision and efficiency can be improved.

This application relates to the field of wellhead cable sealing technology, and particularly to a sealing device comprising a first housing, a first sealing assembly, and a second sealing assembly. The first housing has a through hole extending through the first housing along a first direction. The first sealing assembly includes a first sealing hole and an actuating unit. The first sealing hole extends through the first sealing assembly along the first direction and is located within the through hole. The actuating unit is movable within the first sealing hole to adjust the cross-sectional area of ​​a portion of the first sealing hole. The first sealing assembly includes a second sealing hole and a deformation unit. The second sealing hole extends through the second sealing assembly along the first direction and into the through hole. The deformation unit is located within the second sealing hole. The first sealing hole and the second sealing hole are sequentially arranged and connected along the axial direction of the through hole. This device can reduce crude oil spillage.

The invention relates to the technical field of oil and gas wellhead sealing equipment in the field of petroleum engineering, and discloses an oil and gas wellhead rotary sealing device suitable for workover treatment. The device consists of a bottom flange, a self-sealing middle body, a central pipe, a rotor upper body, a thrust bearing, a tapered roller bearing, a deep groove ball bearing, a lower rubber ring, an upper rubber ring, an upper rubber ring compression ring, a lower rubber ring compression ring, a gland and a positioning pin, is simple in structure, small in size and light in weight, adopts an integrated design, reduces redundant parts, is compact in overall structure, is convenient to mount and carry on site, and is convenient to maintain and maintain. The load burden of a wellhead is reduced; the sealing pressure is small, the sealing performance is good, reliable sealing can be achieved under the low pre-tightening pressure through the synergistic effect of mechanical pre-sealing and hydraulic sealing, and the sealing stability under the high-pressure working condition is effectively improved through the double-sealing mode; due to the design of the three-bearing structure and the detachable central pipe, the operation stability of the device under the complex working conditions of rotation, drilling and the like is guaranteed.

The invention relates to the technical field of mine car transferring, and discloses a mine wellhead shunting hydraulic transferring linkage device which comprises a transferring body and a hydraulic cylinder, the bottom of the transferring body is fixedly connected with the output end of the hydraulic cylinder, fixing assemblies are arranged at the two ends of an inner cavity of the transferring body, the bottom of the transferring body is slidably connected with a plurality of bearing I-shaped beams, and the bearing I-shaped beams are fixedly connected with the bottom of the transferring body. The ends of one sides of the load-bearing I-shaped beams are fixedly connected with the outer walls of the hydraulic cylinders, guide rails are installed at the two ends of the top of the transfer main body, a plurality of mine cars are slidably connected to the tops of the guide rails, and clamping assemblies are arranged at the bottoms of the mine cars. The transition main body, the guide rail and the mine car are driven by the hydraulic cylinder to transversely shift, so that rail transfer of the mine car is completed, and the problems that in the using process of a traditional mine wellhead shunting transition linkage device, due to the fact that the distance needed by rail transfer at a mine wellhead is long, the laying cost is high, and the service life is long are further solved. And the track needs to be manually adjusted in daily life, and the track needs to be patrolled and maintained.

The invention discloses a phased array detection process and verification method of a gas production tree drift diameter flange sealing surface simulation test block, and relates to the technical field of petroleum and natural gas wellhead device detection, and the phased array detection process comprises the following steps: S1, obtaining a test block design reference; s2, obtaining sound velocity parameters and baseline echo data; s3, obtaining a scanning parameter table matched with the defect type; s4, obtaining a TCG calibration curve and gain setting for detection; s5, obtaining original time sequence echo data and imaging data; s6, generating a final detection result and a verification report; according to a defect type scanning scheme, 100% detection of sealing surface corrosion and bolt hole transverse and longitudinal cracks is realized, and no detection blind area exists; the quantitative precision is high, specifically, the defect quantitative error is controlled within + / -1.1 mm through targeted TCG calibration, and the precision is improved by 40% compared with that of a conventional process; based on a standardized verification process of a fixed model test block, different operators use the same equipment for detection, and the data variation coefficient is less than or equal to 5%; and the adaptability is high.

The invention discloses oil and gas well carbon dioxide online monitoring and metering equipment and an implementation method thereof, and relates to the technical field of oil field metering. The equipment comprises a gas-liquid separation unit, a liquid production capacity and moisture content analysis and detection unit, a carbon dioxide content detection unit, a gas flow unit, an automatic control unit, a data acquisition and transmission unit and an auxiliary unit, on-line metering and remote data transmission of parameters including liquid production capacity, gas production capacity, water content, carbon dioxide content, pressure and temperature of a wellhead of an oil well can be realized. The gas-liquid separation unit adopts a gravity separation method and is combined with a specific structural design to guarantee the separation effect; each parameter detection unit realizes accurate detection based on an ultrasonic technology, an infrared absorption principle, a thermal measurement principle and the like; data are uploaded to an upper computer through a DTU unvarnished transmission technology, and real-time monitoring and data analysis are supported. The system is adaptive to conventional drive and CCUS drive oil fields, the automation degree is high, the environmental adaptability is high, and data support is provided for accurate management of oil reservoirs.

The invention discloses a device for reducing saturated water content of wellhead coal bed gas and application. The device comprises a gas guide channel and is characterized by further comprising a heat transfer channel and a cyclone separation device which are connected in sequence, and the gas guide channel is used for connecting a wellhead and a gas station; one end of the heat transfer channel is connected to one end, close to the wellhead, of the gas guide channel; the coating is used for condensing water vapor in coal bed gas to form liquid water; one end of the cyclone separation device is connected to the gas guide channel; and the cyclone separation device is used for separating liquid water from condensed coal bed gas. The accumulated liquid in the gas guide pipeline can be discharged at low cost and low risk.