1531results about "Flushing" patented technology

The invention discloses a multi-valve cooperative control system and method for a choke manifold control box, and the method comprises the steps: collecting process parameters and valve state parameters in real time through a data collection module, calculating the required total throttling pressure drop or total flow through a data analysis module based on the target bottom hole pressure or target flow set by an operator in combination with real-time data, and calculating the total throttling pressure drop or total flow according to the calculated total throttling pressure drop or total flow; the valve role distribution module distributes valve roles according to a preset rule, the instruction generation module distributes total demands to all valves according to a proportion to generate a target opening instruction set, the instruction verification module verifies instruction safety through a safety interlocking matrix, and the valve driving module executes the instruction passing verification. The feedback optimization module calculates the correction based on the actual parameter deviation and performs iterative optimization; the problems of insufficient precision, low response speed and poor safety in multi-valve cooperative control are solved, the precision and reliability of throttling control are improved, valve abrasion is reduced, and the system anti-jamming capability and fault emergency response efficiency during sudden change of working conditions are enhanced.

The disclosure describes an expanding drill device for expanding a pilot bore by moving the expanding drill device along a specified drilling line comprising: a housing; a drill head that has a cutting wheel which is arranged on the drill side of the expanding drill device so as to be rotatably mounted and driven about a rotational axis and relative to the housing and on which at least one drill tool for loosening the ground or the rock is arranged; and a drill-side connection for producing a connection to a pipe section located in the pilot bore on the drill side, wherein the drill side centrally has at least one receiving chamber for the loosened ground or the loosened rock, said receiving chamber being connected to a material conveyor device of the expanding drill device.

The invention discloses a directional drilling track self-adjusting measuring system. Relates to the technical field of directional drilling. The method is used for solving the problem that the current coal mine directional drilling track control technology cannot meet the requirements of underground safety production for high precision, fast response and strong adaptation. According to the technical scheme, the system comprises a multi-dimensional sensor module, a data processing module, a control module, an execution mechanism and a feedback module. According to the technical scheme, the directional drilling track self-adjusting measuring system is provided, the system response speed and track adaptability are remarkably improved, and the track qualification rate is increased to 98% or above from 70%-80%.

The invention relates to the technical field of mine underground equipment, in particular to crawler-type high-gas coal seam drilling equipment based on a double-channel drill rod, which comprises a walking chassis, the double-channel drill rod, a hydraulic slotting system and a negative pressure deslagging device. Crawler-type composite drilling equipment is provided, process integration is carried out through breakthrough of three core technologies, directional drilling (a diamond drill bit and a spiral groove drill rod), hydraulic slotting and negative pressure deslagging are integrated into single equipment, the working procedure switching time is shortened, synchronous slotting and deslagging operation is achieved through a double-channel drill rod, and the working efficiency is improved. The problems of energy consumption and blockage are solved; and meanwhile, gas accidents are prevented.

The invention relates to the field of petroleum well repair engineering, and particularly discloses a secondary well control automation system for conventional minor repair operation of an oil and gas field, which comprises the following steps of: firstly, performing time domain synchronization and Kalman filtering smoothing on multi-source sensor data, and constructing a high-precision synchronization data set; on the basis, the theoretical reference pressure value containing the excitation or swabbing effect is calculated in real time by utilizing the extracted tubular column instantaneous speed and operation modal characteristics and combining a fluid dynamic model. The core lies in that differential calculation is carried out on the theoretical value and actually measured pressure data, and pressure residual decoupling is achieved. The process can dynamically counteract normal physical fluctuation caused by tubular column tripping operation, and the reserved residual sequence is the pure stratum anomaly feature after interference stripping. And finally, a hierarchical control instruction is generated based on the residual sequence, so that the operation efficiency is guaranteed, and meanwhile, the real-time and accurate capture and automatic hierarchical disposal of the secondary well control risk are realized.

The present disclosure relates to the technical field of petroleum extraction, and disclosed are a forward and reverse circulation combined cementing tool and method, aiming to solve the problem of poor adaptability when using forward or reverse circulation cementing alone. The forward and reverse circulation combined cementing tool comprises a cross-circulation sub (2) and a reverse circulation cementing choke float shoe (3) which are arranged from top to bottom; the reverse circulation cementing choke float shoe (3) comprises a choke assembly (33) and a one-way valve (32), and the choke assembly (33) comprises a control module (332) and a choke module (333). The forward and reverse circulation combined cementing tool and method make full use of the advantages of forward and reverse circulation cementing processes, achieving pressure balance and cement slurry delivery, solving the problems of ultra-long cementing sections and complex formation cementing, greatly improving cementing quality and construction efficiency, and the cementing tool and method are suitable for cementing operations in oil and gas wells under complex geological conditions.

The utility model discloses a tunnel punching device, which belongs to the technical field of tunnel machinery and comprises a bearing plate, a drilling machine, a driving mechanism, a driving mechanism and a driving mechanism. The slag receiving cylinder and the water storage tank are both arranged on the bearing plate, and the drill bit movably penetrates through the bottom wall of the slag receiving cylinder; the annular pipe is arranged on the periphery of the slag receiving cylinder, and a plurality of spray heads are communicated with the annular pipe; the conversion cylinder is arranged on the water storage tank, and the conversion cylinder is connected with a linkage mechanism; according to the scheme, most disintegrating slag generated during punching can fall into the slag receiving cylinder, so that the threat of falling objects is reduced, and the safety protection effect is improved; meanwhile, under the cooperation of the linkage mechanism and the driving mechanism, water in the water storage tank is guided into the conversion barrel through the linkage mechanism, then the water is sprayed out through a spray head on an annular pipe, the sprayed water can conduct dust falling treatment on the periphery of the punching position, and the construction environment and the health of workers are better protected; and moreover, the shielding of dust on the sight line can be reduced, and the punching quality and effect are greatly improved.

Computer implemented methods and systems for testing one or more operational changes in a drill rig includes initiating the one or more operational changes and using, in part, image data of a mechanical mud separation machines (“MMSM”) to detect the impact of the one or more changes. The image data may be processed by a Deep Neural Network to identify objects in the object flow, operational parameters of the MMSM, and wellbore environmental conditions. Additional image data may be selected for additional processing based on the results of the analysis. The results of the test may be used to update the drilling operation or a drilling model.

The utility model relates to the technical field of petroleum drilling equipment, and provides a waste drilling object treatment device which comprises a low-temperature drying machine, the low-temperature drying machine comprises a machine shell, the machine shell is provided with a drying cavity, a rotating part is rotationally arranged in the drying cavity, the rotating part is provided with a plurality of isolation cavities, the number of the isolation cavities is four, and the isolation cavities are arranged circumferentially. The swing part is arranged on the cavity wall of the isolation cavity in a swing mode. By means of the technical scheme, the problem that in the prior art, the waste drilling material treatment product mud separation effect is poor is solved.

An anthropomorphic AI control system including a plurality of sensors configured to collect industrial input data. The control system also includes an artificial intelligence-enabled edge-deployed computing device configured to analyze and fuse multimodal input data and generate an output through anthropomorphic computing. The computing device includes a cognitive module performing real-time decision-making at the sensor edge and a controller to manage industrial process actuators across operational domains. In management of industrial fluid flow, the control system may include AI-enabled fluid characterization modules to calculate the Reynolds number and incorporate compliance with AGA3 and AGA8 standards.

On the basis of a bitstream (P), an n-channel audio signal (X) is reconstructed by deriving an m-channel core signal (Y) and multichannel coding parameters (α) from the bitstream, where 1 ≤ m < n. Also derived from the bitstream are pre-processing dynamic range control, DRC, parameters (DRC2) quantifying an encoder-side dynamic range limiting of the core signal. The n-channel audio signal is obtained by parametric synthesis in accordance with the multichannel coding parameters and while cancelling any encoder-side dynamic range limiting based on the pre-processing DRC parameters. In particular embodiments, the reconstruction further includes use of compensated post-processing DRC parameters quantifying a potential decoder-side dynamic range compression. Cancellation of an encoder-side range limitation and range compression are preferably performed by different decoder-side components. Cancellation and compression may be coordinated by a DRC pre-processor.

A milling bit is disclosed for debris collection within a wellbore. A check valve can be part of a debris removal tool that includes a motor, a pump, a gearbox, a bailer, the milling bit, and rotational shafts. In an example, on its uphole end, the milling bit can be coupled with the check valve. On its downhole end, the milling bit can be configured for debris removal with cutting edges. The downhole end can also include openings that provide access to an internal cavity of the milling bit. The internal cavity can extend the entire length of the milling bit. This allows the pump to pull drilling fluid into the bailers through the milling bit and check valve. As a result, the debris removal tool can simultaneously remove obstructions in a wellbore and collect debris from the obstruction removal.

A method of sealing a lost circulation zone may include: circulating a lost circulation treatment composition to a subterranean formation comprising a lost circulation zone, wherein the lost circulation treatment composition comprises: a carrier fluid; a polymeric additive; a fine particulate component; and a composite particulate component containing size and shape selected materials; wherein the cost circulation treatment composition has the property of allowing full volume passage through a 15,000 micron fracture width; flowing the lost circulation treatment composition into the lost circulation zone; and plugging the lost circulation zone using the lost circulation treatment composition.

The invention provides an intelligent device for removing ferromagnetic substances from drilling mud and a using method, the device comprises a rack, two driving assemblies are arranged on the upper surface of the rack side by side, and each driving assembly is in driving connection with a magnetic rod group used for adsorbing the ferromagnetic substances in the mud; the lower surface of the rack is provided with a slag receiving assembly used for storing scraped mud on the magnetic bar set. Compared with a traditional treatment mode, the treatment time of the ferromagnetic substances in the drilling mud can be remarkably prolonged, the content of the ferromagnetic substances in the mud is greatly reduced, and the performance of the mud is guaranteed.

The invention relates to an underground water quality on-line automatic monitoring station which comprises a monitoring station main body, a multi-parameter sensor, a pump and a solar power supply system, the multi-parameter sensor and the pump are arranged underground, a plurality of layers of partition plates are arranged in the monitoring station main body, a plurality of mounting layers are formed from top to bottom, and a control box is mounted at the top of the uppermost partition plate; a monitoring instrument is installed on the monitoring station body, a voltage stabilizer and a UPS are sequentially arranged at the position of a partition plate below the monitoring instrument and electrically connected with a battery pack to form a standby power supply system, a reagent container is arranged at the position adjacent to the battery pack, a measuring pool is arranged at the bottom in the monitoring station body, and a liquid outlet of the measuring pool is communicated with a waste liquid and waste water collecting device. According to the invention, through reasonable partition arrangement of multiple layers of partition plates, real-time monitoring and data uploading of underground water are realized, dual-power-supply guarantee is provided, operation is stable, waste liquid is collected, treated and detected in a centralized manner, and secondary pollution is effectively avoided.

Disclosed are methods, systems, and computer-readable medium to perform operations including: obtaining production data about the well; generating a simulated average reservoir pressure at the subsurface region that includes the well; computing a difference between an average reservoir pressure obtained from the production data and the simulated average reservoir pressure; determining, based on the computed difference, a performance deviation with reference to a particular area of the subsurface region that includes the well; comparing the performance deviation to a predetermined threshold value that represents an acceptable tolerance for variance in performance of the well; and triggering, when the performance deviation exceeds the predetermined threshold value, a particular type of automated response comprising an action that addresses the variance in performance of the well.

The embodiment of the invention relates to the technical field of petroleum machinery, and provides a pure sealing cavity integrated whipstock which comprises a whipstock body used for setting in a borehole, a sealing cavity, a sealing cavity and a sealing cavity. And the windowing milling cone is arranged on the whipstock and is provided with an inner cavity, the inner cavity is provided with a first communication port and a second communication port, and drilling fluid in the borehole can flow into the first communication port and is sent out from the second communication port, so that impurities in the drilling fluid in the borehole are taken away. Another embodiment of the invention provides a setting method which comprises the following steps: S1, drilling fluid reverse circulation: feeding drilling fluid carrying impurities at the to-be-set position of the borehole into the first communication port of the windowing milling cone, and feeding away the drilling fluid from the second communication port, so that the impurities at the to-be-set position are removed; and S2, drilling fluid positive circulation is conducted, specifically, drilling fluid is fed into a second communication port of the windowing milling cone and flows to the whipstock to enable the whipstock to be sealed. According to the technical scheme, the technical problem that the interior of the whipstock is prone to being polluted or blocked before the whipstock is set in the prior art is solved.

A hydrogen production system for producing a hydrogen gas product includes a geologic hydrogen source configured to provide a feedstock comprising hydrogen, nitrogen, and helium and purification equipment comprising two or more of: a pressure swing adsorption (PSA) device; a guard bed; a separation membrane; a reactive membrane; or a cryogenic separation device. The purification equipment is configured to receive the feedstock from the geologic hydrogen source and produce a hydrogen gas product, and production of the hydrogen gas product exhibits a carbon intensity score less than 3.0 kg CO2 eq / kg H2.

Apparatus, method and computer program product for controlling flushing in rock drilling and rock drilling rigs. The apparatus includes a control unit (CU) and a computer program (22) for controlling the supply of a liquid component (LC) in an air mist flushing system in response to a detected seepage rate (15) of the drilling performed. An operator (22) can set a desired moisture target value (16) for the cuttings (19) removed from the drill hole (12) and the control system automatically adjusts the flushing system to control the supply of the liquid component.

Systems and methods presented herein facilitate coiled tubing operations, and generally relate to generating a depth of solids origin (DSO) guess that represents a depth location of solids in a wellbore traversing a hydrocarbon-bearing formation, using a calibrated flow model (FM) to predict an amount of solids at a surface location of the wellbore based at least in part on the DSO guess, comparing the predicted amount of the solids at the surface location of the wellbore to a measured amount of solids at the surface location of the wellbore, determining that the DSO guess is equal to an actual DSO within the wellbore when the predicted amount of the solids at the surface location of the wellbore matches the measured amount of solids at the surface location of the wellbore, and adjusting one or more operational parameters of a coiled tubing system to reduce an amount of the solids at the DSO within the wellbore.

Herein are described methods and systems for characterizing noise and noise level in pressure measurements in a downhole pressure testing operation in formation testing while drilling. The pressure measurements are acquired using a formation testing tool disposed on a drill string. The methods include drilling a borehole, extending the one or more probes into an inner surface of the borehole, performing a pressure testing operation with a first mud pump rate, wherein the pressure testing operation comprises a drawdown period and a build up period, decreasing the first mud pump rate to a second mud pump rate while measuring pressure during the build up period, decreasing the second mud pump rate to a third mud pump rate while measuring pressure during the build up period, and calculating a noise associated with pore pressure measurements during the first pressure testing operation.

The application discloses a device and method for unblocking sandstone geothermal well based on gas-liquid mixture, and relates to the technical field of geothermal water recycling.The device comprises a geothermal recharge well, a pump vehicle, an air compressor, a water tank, a filter tank, a sand remover, a water collecting pipeline, a valve and a pipeline.The pipeline comprises an input pipeline and an output pipeline.The one end of the pump vehicle and the air compressor are connected with the geothermal recharge well through the input pipeline.The other end of the geothermal recharge well is connected with the sand remover through the output pipeline.The other end of the sand remover is connected with the filter tank through the pipeline.The other end of the filter tank is connected with the first end of the water tank through the pipeline.The second end of the water tank is connected with the other end of the pump vehicle through the pipeline.The third end of the water tank is connected with the water collecting pipeline through the valve.The application has the advantages of obvious improvement of unblocking effect of the sandstone geothermal recharge well, shortened operation period, saved operation cost, environmental protection effect, and prolonged service life of the sandstone geothermal recharge well.

The invention discloses automatic cleaning equipment for geothermal well maintenance, and relates to the technical field of geothermal well cleaning equipment.The automatic cleaning equipment comprises a pipeline adaptive cleaning assembly, the pipeline adaptive cleaning assembly extends into a geothermal well and can clean the inner walls of pipelines with different sizes of the geothermal well, and the top of the pipeline adaptive cleaning assembly is connected with a magnetic connecting structure; under the cooperation of the pipeline adaptive cleaning assembly, the shaft joint mechanical arm and the magnetic connecting structure, the whole device can accurately adapt to vertical, bent and variable-diameter pipelines through the cooperation of laser ranging and a lead screw sliding block adjusting structure and the cooperation of a self-driving wheel and a transmission rod structure, the problems of pipe clamping and blind areas of traditional equipment are solved, and the working efficiency is improved. And by means of the arrangement that the focus of ultrasonic waves coincides with the center of high-pressure water flow, the composite effect that cavitation bubble impact is matched with mechanical water flow cleaning is formed, the hard scale removing efficiency is effectively improved, and under the cooperation of the variable-angle inclined spray head and the adjustable spray hole structure, the circumferential direction can be covered, and different scales can be accurately hit.

The invention relates to the technical field of oil exploitation, in particular to a small casing gravel packing sand prevention tool and a using method. According to the technical scheme, liquid through holes are distributed in the outer wall of an outer pipe, a winding wire is wound on the outer wall, one or more supporting ribs are arranged between the winding wire and the outer wall of the outer pipe, and the lower end of the outer pipe is connected with a screen pipe through a lower connector; a cylinder sleeve is mounted at the upper end of the inner pipe, the upper end of the cylinder sleeve is connected with an upper joint, and the lower end of the inner pipe is connected with a washing pipe through an inner lower joint; a plurality of well washing holes are formed in the upper portion of the inner pipe, a piston and a spring are arranged between the cylinder sleeve and the outside of the well washing holes of the inner pipe, and a plurality of circulating well washing holes are formed in the cylinder sleeve. The outer wall of the upper connector is connected with the inner wall of the upper portion of the outer pipe through a locking block and a shear pin. The filling sand prevention device has the advantages that filling sand prevention of a large-displacement and high-sand-ratio stratum with the small inner diameter of a sleeve and the limited internal space of a filling tool can be achieved, filling is conducted through an oil sleeve annulus, the circulation area is larger, and in addition, the filling sand prevention device is simpler in structure and safer and more convenient to construct.

The utility model relates to the field of oil and gas field downhole tool technology and construction operation, in particular to a well washing circulating valve capable of being opened and closed. The well washing circulating valve capable of being opened and closed comprises an upper body (1) and a lower body (7). The upper body (1) and the lower body (7) are connected through threads, and the upper body (1) and the lower body (7) are connected through a screw (6). The upper body (1) and the lower body (7) form a cavity, and the cavity is used for mounting the spring (2) and the sealing valve (4); the sealing valve (4) is of an annular structure, and the annular structure is in contact with the spring (2); the upper body (1) comprises more than one upper body hole (8), and the lower body (7) is provided with more than one lower body hole (9).

Systems and methods presented herein facilitate coiled tubing cleanout operations, and generally relate to estimating reservoir pressure prior to the coiled tubing cleanout operations (e.g., while the wellbore is shut-in). For example, a method includes acquiring, via one or more downhole sensors of a coiled tubing system at least partially disposed within a wellbore, downhole data of the coiled tubing system; identifying, via a processing and control system, a density profile of fluids disposed within the wellbore based at least in part on the acquired downhole data; interpreting, via the processing and control system, the density profile of the fluids disposed within the wellbore; and estimating, via the processing and control system, a reservoir pressure of a reservoir through which the wellbore extends based at least in part on the interpreted density profile of the fluids disposed within the wellbore.

This invention relates to a drill string (32) for use with micro tunnelling apparatus (1) having a cutter (21) at a distal end of the drill string (32) and external drive mechanism (2) at a proximal end of the drill string (32). The drill string (32) being formed by a plurality of connected string segments (13), each string segment (13) with a drive shaft (33) aligned along the central axis for rotation there about and an elongate casing (34) that houses the drive shaft (33). The front end of one string segment (13) is adapted to connect with the back end of another string segment (13) to form the drill string (32) by way of a latch connection, the latch connection being adjustable so as to vary the tolerance between said front end of one string segment (13) and said back end of another string segment (13) while connected.

The invention provides a drilling fluid flow monitoring device and method suitable for a mud runway, relates to the field of petroleum drilling ground testing instruments, and solves the problem that an existing monitoring method is low in overflow prediction precision and cannot find overflow in time. The device comprises a flow measuring unit (1), and the left side and the right side of the flow measuring unit (1) are connected with a flow guide unit (2) and a flow blocking unit (4) through flange plates respectively. The upper part of the diversion unit (2) is connected with the video monitoring unit (3); the flow measuring unit (1) is an electromagnetic flowmeter and is used for measuring the outlet displacement; the flow guide unit (2) is used for guiding drilling fluid to flow to the flow meter; and the flow choking unit (4) is used for controlling stable flow of the drilling fluid. According to the drilling fluid flow monitoring device suitable for the mud runway, real-time accurate monitoring of the flow of a drilling fluid outlet can be achieved, then monitoring of overflow and leakage of the drilling fluid is achieved, and well control safety is ensured.

This invention relates to a reamer assembly (6) for enlarging a substantially horizontal pilot hole (14) in the ground to produce a bore hole (18), including a cutter (21) which is rotatable about an axis X-X. A gear box (20) is positioned on a first side of the cutter (21) for interacting with a drive shaft (33) which is rotated about the axis X-X by a drive apparatus (2) outside the pilot bore hole (14) and a body (15) positioned on a second side of the cutter (21) for transferring thrust from a thrust apparatus (4) outside of the enlarged bore hole (18) to the cutter (21).

The invention relates to the technical field of cast-in-situ bored pile slurry circulation construction, in particular to a construction method of an assembly type slurry pool for cast-in-situ bored pile slurry circulation, which comprises the following steps: step 1, the assembly type slurry pool is divided into an assembly type sedimentation pool and an assembly type slurry storage pool for splicing structure design, and each component is blanked and processed in a field in advance; transporting to a site for installation; 2, the two ponds are independently assembled; 3, after assembly is completed, a closed water test is conducted; 4, the site is leveled, a foundation pit is excavated, and the two ponds are hoisted and communicated; 5, a slurry pump support is installed on the assembly type slurry storage pool, and a slurry pump and a pipeline are installed; and 6, after pile foundation construction is completed, mud and sediment in the assembly type mud pit are removed, and the mud pit is adjusted away through a crane to be used in the next construction site or disassembled and recycled for use. According to the construction method, modular design is adopted for the assembly type mud pit, transportation is convenient and fast, mud pits of different specifications and sizes can be assembled, the turnover utilization rate is high, and environmental pollution is small.