801 results about "Blowout preventer" patented technology

A method includes actuating a blow-out preventer (BOP) by moving a ram using an electric motor. The method also includes capturing sensor data with one or more sensors as the BOP is electrically-actuated. The method also includes determining one or more parameters with a controller based upon the sensor data. The method also includes controlling the electric motor based upon the one or more parameters.

The utility model relates to the technical field of gas extraction, in particular to an underground gas extraction blowout preventer, and mainly solves the technical problems that the existing gas extraction blowout preventer is high in spewing control difficulty, high in safety risk and high in sprayed slag cleaning workload. The device comprises a movable chassis, a deslagging box, a multi-way pipe, a drilling machine through pipe, a coal seam drilling pipe, a negative pressure pipe, a pressure relief buffer cover, a deslagging pipe and a pressure sensor. According to the device, gushing is detected through the pressure sensor, on-off of the negative pressure pipe and the slag discharging pipe is controlled in a feedback mode, dependence on manual experience is not needed, it can be guaranteed that gushing and corresponding equipment are started consistently, and the gushing control difficulty is greatly reduced; meanwhile, water and residual materials for slag spraying can be discharged into the slag discharging box through the slag discharging pipe in time to be collected, and the workload of slag spraying and cleaning is reduced; the device is further provided with a pressure relief buffer cover, when the pressure is too large due to gushing, buffering can be conducted through the pressure relief buffer cover, and damage to the device caused by the too large pressure is avoided.

The invention discloses a system for lowering and recovering a hydraulic pipe of an underwater blowout preventer, which comprises a winch drum, a driving assembly and a bearing seat are respectively arranged on shafts at two ends of the winch drum, the driving assembly is used for driving the winch drum to rotate, and the bearing seat is used for supporting the winch drum; a replaceable chain wheel and a hydraulic slip ring are sequentially mounted on the projecting shaft on the other side of the bearing seat, and the replaceable chain wheel is connected with a cable arrangement device through a chain; a hydraulic pipe of the underwater blowout preventer is led into the winch roller through the hydraulic sliding ring, then led to the cable arrangement device through the winch roller and finally led to the underwater blowout preventer through the cable arrangement device, and the cable arrangement device is used for enabling the hydraulic pipe to be arranged in order along the winch roller. The driving assembly is connected with a pneumatic control system which is used for controlling the driving assembly to drive the winch drum. According to the system, hydraulic pipes with different diameters can be automatically collected and released, the heat dissipation effect is good in the collecting and releasing process, and serious heating of the hydraulic pipes cannot be caused.

The invention discloses an underwater wellhead angle adjusting tool and a using method thereof.The tool comprises a connecting disc, a connecting cylinder, a hydraulic cylinder and a hydraulic cylinder piston, the connecting cylinder is arranged below the connecting disc, the connecting disc is connected with a high-pressure wellhead feeding tool through bolts, and the high-pressure wellhead feeding tool is connected with a high-pressure wellhead; a hydraulic cylinder shell and a hydraulic cylinder piston of a hydraulic cylinder are arranged on the outer side of the connecting cylinder in a sleeved mode, the hydraulic cylinder piston moves downwards to drive a downward locking lining of the high-pressure well mouth to move downwards, the downward locking lining opens a locking ring of the high-pressure well mouth, and the high-pressure well mouth and the low-pressure well mouth are locked. According to the underwater wellhead angle adjusting tool, an angle-adjustable high-pressure wellhead is vertically installed on an inclined low-pressure wellhead, a hydraulic cylinder piston is controlled to move downwards through hydraulic drive, a downward locking bush is forced to open a locking ring, and the angle-adjustable high-pressure wellhead and the low-pressure wellhead are locked; hydraulic driving is achieved, and operation is easy; and well deviation is reduced, and installation of service tools, blowout preventers and Christmas trees is facilitated.

The invention belongs to the technical field of oil and gas drilling well control equipment, and particularly relates to a ram blowout preventer state confirmation method with a locking indication window, which comprises the following steps: arranging a transparent observation window on a blowout preventer shell, and calibrating the alignment position of the end face of a locking shaft and an inner side reference scribed line; after the locking action is executed, the alignment state is confirmed through multi-angle visual observation; a switchable auxiliary light source is integrated to eliminate visual interference; an industrial camera is used for collecting images, displacement deviation is recognized through an edge detection algorithm, and an alarm is given if the displacement deviation exceeds the limit; and generating an encrypted digital report containing a timestamp and equipment information, uploading the encrypted digital report to a monitoring platform, and supporting real-time check and electronic signature of a mobile terminal. Through three layers of mechanisms of standardized vision-mechanical mapping, optical enhancement and digital perception, high-reliability, high-compatibility and traceable locking state confirmation is realized.

The present application discloses a mud blowout preventer box for pressure operation equipment, which relates to the technical field of drilling blowout prevention equipment. It includes a box body, a gland and a bottom plate. A central hole for the drill pipe to pass through is provided on the box body. A discharge port is provided on the side wall of the box body. A first sealing pressure ring is provided at the top of the box body, and a second sealing pressure ring is provided at the bottom of the box body. Both the first sealing pressure ring and the second sealing pressure ring are made of elastic materials. The gland is installed on the top of the box body and is used to squeeze the first sealing pressure ring. A first through hole for communicating with the central hole is provided on the gland. The bottom plate is installed at the bottom of the box body and is used to squeeze the second sealing pressure ring. A second through hole for communicating with the central hole is provided on the bottom plate. Fixing structures for fixing the gland and the bottom plate are respectively provided on the box body. The present application has the effect of effectively preventing the mud in the drill pipe from spraying out during the uncoupling process, and avoiding polluting the drill floor and the surrounding environment.

The invention discloses an underwater blowout preventer myriameter photoelectric composite cable lowering and recycling system which comprises an integrated frame, a cable storage winch is connected to one side of the bottom of the integrated frame, a cable arrangement device is further connected to the bottom of the integrated frame, the cable arrangement device is arranged close to the cable storage winch, and a second guide pulley and a compensator are further connected to the bottom of the integrated frame. The middle of the integrated frame is connected with a traction winch, one side of the traction winch is connected with a first guide pulley, the cable storage winch is connected with an umbilical cable, and the umbilical cable sequentially penetrates through the cable arrangement device, the second guide pulley, the compensator, the first guide pulley and the traction winch. Double-closed-loop control is adopted, the problems that distance cable arrangement dislocation is caused by accumulative errors of PLC control synchronous cable arrangement and umbilical cables and underwater blowout preventers cannot be normally recycled and put down due to faults of a single sensor are solved, self-adaptive cable arrangement and real-time correction are conducted in a mechanical mode, accurate cable arrangement is achieved, and the working efficiency is improved. Compared with an angle sensor, the structure is simple and no accumulative error exists.

A method includes actuating a blow-out preventer (BOP) by moving a ram using an electric motor. The method also includes capturing sensor data with one or more sensors as the BOP is electrically-actuated. The method also includes determining one or more parameters with a controller based upon the sensor data. The method also includes controlling the electric motor based upon the one or more parameters.

A method for quantitative evaluation of gas seal performance of an annular blowout preventer is provided. The equivalent average contact pressure of the tubing-rubber core sealing surface is acquired based on the principle of equivalent seal contact energy, the tubing-rubber core microscopic contact state is simulated by using elastic-plastic normal flattening contact between the rigid smooth flat plate and the uniformly distributed spherical micro-convex body rough plate, the actual contact area of the single spherical micro-convex body under the equivalent average contact pressure of tubing-rubber core sealing surface is acquired, and then the circumferential width and average height of the microscopic leakage channel at the tubing-rubber core contact interface are acquired, the gas leakage volume rate of gas through the tubing-rubber core interface is acquired by using the parallel plate model in hydrodynamics, and the gas leakage volume rate is compared to the allowable gas leakage volume rate.

The angle-adjustable underwater well mouth comprises a high-pressure well mouth, a low-pressure well mouth and a low-pressure well mouth extension sleeve, the high-pressure well mouth and the low-pressure well mouth are positioned and adjusted in direction through a first well mouth spherical pair, and the high-pressure well mouth and the low-pressure well mouth are locked through a locking ring; in the tie-back operation mode, a high-pressure well mouth is connected with a flexible insertion sealing pipe through a high-pressure well mouth thin-wall extension sleeve, a tie-back tail pipe hanger is arranged in a low-pressure well mouth extension sleeve, a guide cylinder is arranged at the upper end of the tie-back tail pipe hanger, and a guide head is arranged at the lower end of the flexible insertion sealing pipe. The flexible insertion sealing pipe can enter the tie-back tail pipe hanger under the guiding action of the guiding head and the guiding cylinder; in the non-tie-back operation mode, the common extension sleeve is connected below the high-pressure wellhead, and the sleeve string is connected below the common extension sleeve. The inclined high-pressure wellhead is adjusted to be approximately vertical as required, so that a service tool, a blowout preventer and a Christmas tree are convenient to mount, the stability of the wellhead is enhanced, and the operation risk is reduced.

The invention provides a blowout preventer and a rubber core sealing adjusting method, and belongs to the technical field of drilling equipment. The blowout preventer comprises an upper shell and a lower shell connected with the upper shell, the self-aligning blowout preventer further comprises a self-aligning assembly, and the self-aligning assembly is installed between the upper shell and the lower shell and is positioned and fixed through the upper shell and the lower shell; the self-aligning assembly comprises a first shell, a rubber core, an upper aligning unit and a lower aligning unit, the first shell is fixedly arranged between the upper shell and the lower shell, the rubber core is arranged in the first shell and makes contact with the upper aligning unit and the lower aligning unit which are installed in the first shell, and the upper aligning unit is used for adjusting the position between the upper portion of the rubber core and the drill rod. The technical problem that in the prior art, in the dynamic well drilling process of a drill column, due to heterogeneity of stratum lithology, the drill column generates high-frequency vibration, so that sealing deviation of a rubber core of the rotary blowout preventer and a drill rod causes sealing failure can be effectively solved.

The invention relates to the technical field of well drilling auxiliary tools, in particular to a rotary blowout preventer delivering and taking tool which comprises a center rod, an outer shell, an elastic component and a guide limiting groove. One end of the center rod is in butt joint with a rubber core connecting disc of the rotary sealing assembly; one end of the outer shell is rotationally arranged on the center rod in a sleeving manner, and a plurality of limiting pins are arranged at the other end of the outer shell in the circumferential direction; the elastic part is arranged in the outer shell and axially abuts against the center rod and the rubber core connecting disc; the limiting pin enters the guide limiting groove from the inlet through axial pressure, is limited and reversed in the guide limiting groove through the reversing limiting structure and is moved out of the outlet. When the rotary sealing assembly is put in and taken out, the tool and the rotary sealing assembly can be installed together through rotation of the outer shell, the tool and the rotary sealing assembly can be separated without rotating a center rod to find the position or shearing a limiting pin, residues do not exist in a well, and the safety performance is improved.

The invention provides a deepwater semi-submersible drilling platform pressure control drilling MPD control system which comprises a platform rotary table face. A platform wellhead flow divider, a marine riser expansion joint, a marine riser tension ring, a marine riser rotation control pup joint, an MPD hydraulic control pup joint, an MPD marine riser annulus sealing device, a marine riser four-way joint, a drilling marine riser, an underwater blowout preventer set and a seabed underwater wellhead are sequentially connected to the platform rotary table face from top to bottom. The MPD hydraulic control pup joint is connected with a rotary control pup joint power unit through an umbilical cable I, an umbilical cable roller frame I and a cable hose, and the rotary control pup joint power unit is connected with a deepwater MPD electro-hydraulic control system main control station; the MPD marine riser annulus sealing device is connected with the annulus sealing device and the buffer manifold hydraulic power unit through an umbilical cable II, an umbilical cable roller frame II and a cable hose and is connected with the deepwater MPD electro-hydraulic control system master control station; the throttling hydraulic power unit is connected with the deepwater MPD electro-hydraulic control system master control station. According to the system, pressure regulation and control, equipment management and operation safety guarantee in the deepwater pressure-controlled drilling well are realized.

The invention discloses an automatic hard well shut-in method and system integrated with a petroleum drilling machine control system, and relates to the technical field of petroleum drilling machine well control. According to the method, the drilling working condition is monitored in real time, an overflow trigger index is calculated, the overflow risk in a shaft is judged, and a hard well shut-in process is started after an alarm is given; the position of a hook and the position of a drill rod joint are monitored in real time, a winch safety stop index is calculated, whether the operation state of the winch is safe or not is judged, the hook is automatically moved to the optimal stop point, and the winch is braked; top drive and slurry pump linkage control is started, a top drive and slurry pump linkage control coefficient is calculated, whether the static working condition before well control is met or not is judged, and equipment is stopped or a strategy is executed accordingly; monitoring the action of the blowout preventer and the state of the hydraulic system, calculating the consistency index of the action of the blowout preventer, judging whether the action of the blowout preventer meets the well shut-in requirement or not, and giving a strategy if the action does not meet the well shut-in requirement; real-time judgment of the overflow risk and automatic hard shut-in of the well can be achieved, the safety of the well mouth is guaranteed, and the risk of manual misoperation is reduced.

The invention relates to the technical field of oil drilling and production well control equipment, in particular to a composite sealing rotary blowout preventer capable of regulating and controlling pressure while drilling. The blowout preventer comprises an execution module, a transmission module and a pressure sensing module. According to the execution module, radial extrusion force is applied to the rubber core through a radial shrinkage mechanism composed of a rotating ring, a connecting rod and a push block, meanwhile, a piston outer sleeve is matched with an inner shell in the axial direction under the limiting effect of an adaptive ring, axial compression force is applied to the rubber core, and therefore composite sealing of the rubber core is achieved. The transmission module drives a transmission gear to be meshed with a gear seat through a motor and drives a rotating ring to rotate, and power is transmitted to the radial contraction mechanism. The pressure sensing module is used for monitoring wellhead pressure in real time and actively triggering the generator to operate according to pressure changes, and self-adaptive adjustment of the sealing state is achieved. The device is suitable for the PCWD working condition, active sealing adjustment can be achieved based on wellhead pressure changes, the sealing reliability is improved in an axial and radial composite compression mode, and the device is particularly suitable for complex stratums, pressure fluctuation and continuous drilling scenes.

Systems, methods, and devices for blowout preventer independent alignment and installation of a tubing hanger within a subsea well system. A tubing hanger orientation assembly may be included with a rotary actuator that provides high torque adjustment and fine alignment of the tubing hanger with respect to other subsea equipment. At least one sensor may be included to measure and confirm an orientation of the tubing hanger for proper alignment and connection to a subsea wellhead.

A system includes a blowout preventer (BOP) having a ram assembly having first and second pistons. The first piston is configured to drive a first ram into a cavity of the BOP and the second piston is configured to drive a second ram into the cavity. The system also includes a motor assembly having first and second motors. The first motor is configured to cause an extension of a first lock to constrain the first piston and the second motor is configured to cause an extension of a second lock to constrain the second piston. The first and second motors are fluidly coupled to each other in a series arrangement via a connector conduit. The connector conduit is configured to flow a motor fluid sequentially through the first and second motors.

The application discloses a blowout preventer suspension type pressure testing tool and method, which comprises a cup seal packer, a suspension body and a cup seal packer center body. The cup seal packer is sleeved on the outer wall of the cup seal packer center body and is located below the suspension body. The upper end of the cup seal packer center body is suspended on the suspension body, and the suspension body is provided with an axial pressure transmission channel. The application can make the pressure testing pressure and the weight of the pipe column all act on the suspension body, effectively change the force of the pipe column during the blowout preventer pressure testing, improve the construction safety, and improve the success rate and accuracy of the blowout preventer pressure testing.

The invention provides a deepwater blowout preventer system digital twinborn model processing method, device and equipment, and relates to the technical field of deepwater blowout preventer system control. The method comprises the following steps: acquiring operation data, and extracting an actual value of a simulation input parameter and an actual value of a simulation output parameter from the operation data; inputting the actual value into the digital twinborn model for simulation to obtain a predicted value, and calculating a simulation error between the predicted value and the actual value of the simulation output parameter; and when the simulation error is greater than or equal to a preset simulation error threshold value, calculating a probability distribution difference of predicted values obtained by the digital twin model in two adjacent simulation processes, and updating model parameters associated with the simulation output parameters in the digital twin model. According to the method provided by the invention, the control problem of the deepwater blowout preventer system is solved by combining multi-physics field coupling analysis on the premise of the precision of the simulation model of the deepwater blowout preventer system and the fault diagnosis efficiency.

The invention relates to the technical field of blowout preventer monitoring, in particular to an AI-based blowout preventer product performance monitoring system and method, and the system comprises a data collection module which is used for collecting the operation data of a blowout preventer and outputting a standardized multi-dimensional time sequence data stream; the feature extraction module is used for performing feature extraction on the standardized multi-dimensional time sequence data stream and outputting a multi-dimensional feature vector matrix; the state recognition module is used for constructing a state recognition model to recognize the current performance state of the blowout preventer according to the multi-dimensional feature vector matrix and generating probability distribution of the performance state; the trend prediction module is used for constructing a trend prediction model according to the performance state probability distribution and the historical state sequence, predicting the future performance degradation track and the remaining service life of the blowout preventer and generating a prediction result; the decision early warning module is used for constructing a multi-level early warning system according to the prediction result and generating a maintenance decision scheme; and the learning optimization module is used for continuously optimizing the AI model performance according to the decision scheme and the actual maintenance result feedback.

An embodiment uses a symmetrical elastomeric design with hydraulic pistons on either end (as opposed to a single piston on conventional BOPs) which allows for lower actuation forces, reduced friction, and reduced wear and tear. The lower actuation forces correspond to lower operating pressures which allows the body and housing to be smaller, leading to a smaller footprint.

The utility model provides a well drilling top drive conductive wire passing and internal blowout prevention function integrated pup joint which comprises an internal blowout preventer, a rotor of a conductive slip ring is fixedly connected to the middle of the internal blowout preventer through a key, a stator of the conductive slip ring is connected with the rotor of the conductive slip ring in a matched mode, and a rotor output end is installed at the outer end of the rotor of the conductive slip ring. A stator input end and a stator fixing block are installed at the outer end of a stator of the conductive slip ring, the stator input end is connected with a stator output cable, and a rotor output end is connected with a cable in a small hole in the protection connector through a rotor output cable. The device is convenient to use, the cable can pass through a drilling top drive, and the device has an internal blowout prevention function.

The invention relates to the technical field of oil and gas drilling and production well control safety, and discloses a hydraulic blowout preventer monitoring method and device and a storage medium. The method comprises the steps that hydraulic flow data in a hydraulic pipeline opening and / or closing process of a hydraulic blowout preventer are obtained, and whether the hydraulic flow data are normal or not is judged; based on the hydraulic flow data, whether the hydraulic blowout preventer completes closing or opening operation or not is judged, and whether closing or opening is normal or not is judged; when it is judged that the hydraulic blowout preventer completes the closing operation, air pressure data associated with an air path for controlling the drilling machine to brake are obtained; judging whether the air pressure data is lower than a safety threshold; and if the air pressure data is lower than the safety threshold value, a first alarm signal indicating brake failure is generated and output. According to the system, the well shut-in state and brake effectiveness can be verified, and an alarm can be given in time when safety interlocking is abnormally removed, so that the accident that a drilling tool is lifted and broken due to state misjudgment or human negligence is fundamentally eradicated, and the problem that the safety state cannot be monitored is solved.

The utility model relates to a drainage and gas recovery device formed by combining a cable laying pipe and an electric submersible pump, which is characterized by comprising a sleeve, and a cable laying pipe, a metal joint, a mechanical anchor, a connector and an electric submersible pump which are arranged in the sleeve and connected in sequence, the upper end of the cable laying pipe sequentially penetrates out of the wellhead device, the blowout preventer and the injector from bottom to top and then is configured with the power winding frame. A continuous oil pipe is replaced by the cable laying pipe, the cable laying pipe is tripped to a specified depth, the wax blockage, corrosion or scaling phenomenon of a speed pipe column can be solved, and stable production in the self-spraying period is guaranteed.

The invention discloses a main machine for directional drilling construction, an angle adjusting device and an angle adjusting control method of the main machine. Comprising a feeding device, a middle angle adjusting device arranged below the rear portion of the feeding device, a front angle adjusting device arranged at the front end of the feeding device, a carriage device and a sliding centralizer which are arranged on the feeding device, a gyrator installed on the carriage device, a driving drill rod set in the gyrator, and a clamping shackle device arranged on the feeding device. The rod loading and unloading mechanical arm is arranged on the middle angle adjusting device; the orifice blowout prevention device is arranged at the front end of the clamping shackle device; the carriage device can drive the gyrator to move on the guide rail of the feeding device, and the gyrator and the driving drill rod set are coaxial with the clamping shackle device. The automatic directional drilling machine is suitable for underground coal mine automatic directional drilling machine construction, the drilling machine can achieve integral layout, and the structure is compact.

The utility model discloses an intelligent blowout prevention device based on a PLC control system, and relates to the technical field of blowout prevention during coal drilling, a slag baffle and an annular inner tube allowing a drill rod to penetrate through are arranged in a four-way pipe, the annular inner tube is connected with an external air source, a methane sensor used for detecting the concentration of methane near a drilled hole is arranged in a roadway, and the external air source is connected with an external air source. The PLC control cabinet is connected with the methane sensor and the external gas source, when hole spraying occurs, the pressure of gas in a drill hole is increased, the gas in the drill hole is diffused to the position near the drill hole through a gap between the drill rod and the four-way pipe, and after the concentration of the methane near the drill hole reaches a preset threshold value of the methane sensor, the PLC control cabinet controls the external gas source to supply gas to the annular inner tube. The annular inner tube expands towards the middle to tightly hold the drill rod, the path that gas in the drill hole continues to escape to the position near the drill hole through the gap between the drill rod and the four-way pipe is cut off, and the problem that normal work in a roadway is affected due to the fact that gas in the drill hole continues to escape through the gap between the drill rod and the four-way pipe is solved.

A method can include generating a graphical user interface that includes vector graphics representations of equipment of a system for well operations, a data graphic for rendering sensor data of the system, and a graphical control actuatable to issue a control instruction for control of the system, where the system includes an uninterruptible power supply (UPS) and a blowout preventer (BOP), and where the UPS is selectively, operatively coupled to one or more electric actuators for changing a state of the BOP; responsive to operation of the system, receiving sensor data; and updating the data graphic based at least in part on the sensor data.

One form of this technology includes a sealing structure for sealing around the user's airway against the user's face. The sealing structure includes a sheet or membrane extending inward toward the user's airway and includes a structure that prevents the inner boundary of the sheet or membrane from being ejected outward due to internal pressure (e.g., folded back onto itself).

The invention belongs to the field of mechanical design, and relates to a rotary blowout preventer for a coal mine drilling machine. The core structure comprises a transition four-way joint which is provided with a deflation valve and a water drain valve which are respectively used for discharging gas and drilling slag and water; the rotary sealing device comprises a shell, a front end cover, a rear end cover, a rotary inner sleeve and a sealing rubber sleeve, the sealing rubber sleeve is in an inverted cone shape, self-sealing is achieved through the pressure of media returning out of a hole, and the holding force on the drill rod is enhanced. In addition, the device is further provided with an axial limiting structure, various sealing pieces, a nylon supporting ring, a lubricating nipple and other auxiliary components. In some embodiments, an auxiliary sealing ring is additionally arranged on the inner side of the large end of the sealing rubber sleeve, and double-sealing guarantee is formed. The device can effectively solve the problems that an existing coal mine drilling gas leakage-proof device is rapid in sealing abrasion, poor in high-pressure sealing performance and the like, and safe production of a coal mine is guaranteed.

A blowout preventer incudes a body having a bore and first and second guideways; a first ram movably positioned relative to the first guideway and movable toward the bore, the first ram including a first blade including at least one flat side; a first blunt leading contour running parallel to a plane of the flat side along a distal end of the first blade; at least one upper inclined surface above the first blunt leading contour; and at least one lower declined surface below the first blunt leading contour, wherein the first blade is positioned and is movable above a first plane; a second ram movably positioned relative to the second guideway and movable toward the bore, the second ram including a second blade including a second blunt leading contour; and at least one lower declined surface, wherein the second blade is positioned and is movable below the first plane.