4021results about "Flushing" patented technology

A method may include receiving a description of an event occurring at a wellsite; extracting a failure mode from the description using a fine-tuned large language model (LLM); identifying a matching failure mode from historical data processed using the fine-tuned LLM, where the matching failure mode is associated with one or more remedial actions that successfully resolved the matching failure mode; and outputting the one or more remedial actions for implementation at the wellsite.

A bottom hole assembly can include a cable head configured to connect the bottom hole assembly to a cable in a coiled tubing, an electrical orienter to rotate multiple sensor packages downhole, and multiple conductors extending between the cable head and the sensor packages via the electrical orienter. A method can include connecting a bottom hole assembly to a coiled tubing, the bottom hole assembly comprising an electrical orienter, a sensor package including ranging equipment, a fluid motor and a drill bit, deploying the coiled tubing and the bottom hole assembly into the well, activating the electrical orienter to rotate the ranging equipment, and then drilling an offset wellbore toward a target wellbore located using the ranging equipment. An electrical orienter can include an electric motor, a flow path extending completely longitudinally through the electrical orienter, and multiple conductors extending completely longitudinally through the electrical orienter.

In some implementations an apparatus may include a first tubular configured for use in a downhole oil-water separation (DOWS) system and for placement in a segment of a well. The apparatus also may include first and second support members configured to hold the first tubular at a preferred inclination in the well, wherein the first support member is configured to hold a first end of the first tubular at the preferred inclination inside a second tubular, and the second support member is configured to hold a second end of the first tubular at the preferred inclination inside the second tubular.

In some implementations, a system includes a cartridge configured for insertion into a flow path in a well, wherein the cartridge includes one or more devices to separate fluids. The system also may include an elongated Y-block including a working space configured to enable a tool to remove the cartridge from the flow path.

This invention relates a drill head (4) for use with a microtunneling apparatus (1) having a cutter bar (12) that is rotatable to produce swarf in a working zone. The drill head (4) includes a movable imaging device (46) that is adapted to capture images in the working zone (13). The imaging device (46) is adapted to move from a position within an annular shell (11) to a position external from the annular shell (11).

The present invention relates to the field of oil production engineering equipment. Disclosed are a waterflooding and well flushing system and an integrated water distributor thereof. The integrated water distributor comprises a main body with a hollow channel, and a setting mechanism slidably sleeved on the main body, wherein the main body is internally provided with a well-flushing fluid channel, a waterflooding valve, and a well flushing and waterflooding control mechanism for controlling the connection state of the well-flushing fluid channel and the open / closed state of the waterflooding valve; the well flushing and waterflooding control mechanism comprises a well flushing and waterflooding shared electrically-controlled transmission shaft and a well-flushing piston; and the waterflooding valve is connected to the well flushing and waterflooding shared electrically-controlled transmission shaft. When the waterflooding valve moves to an open state as the well flushing and waterflooding shared electrically-controlled transmission shaft slides, the hollow channel is in communication with a space outside the main body, and at the same time, the well-flushing piston blocks the well-flushing fluid channel. The integrated water distributor can effectively prevent the well-flushing fluid channel from being accidentally connected due to residual pressure of strata during waterflooding operation.

The invention relates to an intelligent inversion method and system for well drilling overflow shaft gas distribution based on a self-encoder, and belongs to the technical field of oil gas and geothermal development drilling and completion engineering. Comprising the following steps: step 1, accurately solving multiphase flow parameters of a shaft; 2, in combination with the drilling working condition and the geological condition of a specific overflow high-risk well section, based on a Monte Carlo sampling method, eight parameters are changed, uniform sampling is carried out, and a high-precision simulation data set is formed; step 3, constructing a neural network model for gas cut state inversion based on an auto-encoder neural network; 4, training is carried out; 5, standardizing one-dimensional time sequence parameters in the monitoring data; and inputting into a trained neural network model for gas cut state inversion based on an auto-encoder neural network to obtain distribution data of the overflow gas in the shaft in a time period in which the time sequence parameter at the current moment is located. According to the invention, the real-time rapid inversion of the gas distribution in the parallel cylinder during the drilling overflow parallel control period is realized.

Embodiments include a choke system that passes enlarged debris despite having a relatively small diameter for an input port of the choke system. Embodiments also include systems to prevent dislodging of a choke seat when backpressure is supplied to the choke system. Embodiments also include sealing systems to prevent fluid leaks around the choke seat of the choke system.

An apparatus comprises one or more solids separators to be positioned downhole in a well formed in a subsurface formation, wherein each of the one or more solids separators are configured to receive a fluid from the subsurface formation and separate out sediment from the fluid, wherein the sediment is transported after separation to a destination location.

Some implementations may include a downhole oil-water separation (DOWS) system configured to be positioned downhole in a well. The DOWS system may include a perturbation device configured to be positioned in a borehole of the well and configured to perturb a fluid having turbulent flow to collapse the turbulent flow to a laminar flow, and a fluid separator configured to be disposed in the borehole and configured to separate the fluid.

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 present invention relates to a downhole extraction pipeline blockage clearing apparatus, comprising a frame, a hose wind-up apparatus, an advancing apparatus, a high pressure pump set, a hydraulic pipe, a self-advancing blockage clearing spray head, and a control system; the hose wind-up apparatus, the advancing apparatus, and the high pressure pump group are all connected to the control system and are controlled by the control system; the hydraulic hose is wound on the hose wind-up apparatus, and wind-up of the hydraulic hose is implemented by means of rotation of the hose wind-up apparatus; the advancing apparatus is located at one side of the hose wind-up apparatus, jointly moves with the hose wind-up apparatus, and holds and transports the hydraulic hose to enter into an extraction pipeline; one end of the hydraulic hose is connected to the high pressure pump group, and the other end is connected to the self-advancing blockage clearing spray head; and the self-advancing blockage clearing spray head performs blockage clearing within the extraction pipeline by means of a jet stream and by means of the high pressure pump group conveying high pressure water to the self-advancing blockage clearing spray head. The spray head of the present invention possesses self-rotation and self-advancing functions, the effect and efficiency of blockage clearing are improved, and manual operation becomes less intensive; and the hose wind-up apparatus and the advancing apparatus implement automated wind-up and transport of the hydraulic hose, preventing the hydraulic hose from becoming tangled and damaged.

A system comprises a downhole separation system configured to be positioned downhole a well formed in a subsurface formation, wherein the downhole separation system is configured to receive formation fluid from the subsurface formation and configured to separate formation fluid into a production fluid and a nonproduction fluid. The downhole separation system comprises at least one device to be positioned in an opening of a downhole tubular through which the formation fluid is to be received from the subsurface formation, wherein the at least one device is to filter out at least a portion of solids in the formation fluid from entering the downhole tubular; and a controller configured to initiate an operation to clean the at least one device using a cleaning fluid.

Systems and methods are configured to receive one or more photographs depicting a plurality of cuttings, to identify one or more individual cuttings of the plurality of cuttings depicted in the one or more photographs, to extract morphological, color, texture, grain size, and grain distribution data from each individual cutting of the one or more individual cuttings, to perform lithological classification of the one or more individual cuttings at a plurality of hierarchical levels based at least in part on the extracted morphological, color, texture, grain size, and grain distribution data or based at least in part on features directly extracted from the one or more individual cuttings that represent the morphological, color, texture, grain size, and grain distribution data, and to present a consolidated results summary of the lithological classification of the one or more individual cuttings at the plurality of hierarchical levels via the analysis and control system.

Some implementations relate to a downhole separation system configured to be positioned downhole in a well formed in a subsurface formation, wherein the downhole separation system is configured to receive a formation fluid from the subsurface formation and configured to separate the formation fluid into a first fluid primarily comprised of a production fluid and a second fluid primarily comprised of a nonproduction fluid, the downhole separation system including, at least a first coalescer to be positioned within a downhole tubular, wherein the first coalescer is configured to separate out at least a portion of debris and the production fluid from the second fluid.

A cage-type dual wedge throttle valve, comprising: a housing having an inner cavity; a valve cover arranged at the top of the housing; a valve seat arranged in the inner cavity, wherein the valve seat comprises an outer valve seat and an inner valve seat, and a plurality of flow holes are distributed on the peripheral wall of the outer valve seat; a valve core, which comprises two wedge-shaped surfaces and two cylindrical surfaces which are axially symmetrically arranged about the central axis, wherein the cylindrical surfaces face the direction in which a fluid flows into the inner cavity, and the cylindrical surfaces can fit the inner wall of the inner valve seat; and a valve stem having the two ends respectively connected to a driving device and the valve core, wherein under the driving of the driving device, the valve stem can drive the valve core to reciprocate in the valve seat in the axial extension direction of the valve stem. By means of the above solution, primary throttling is achieved when a fluid passes through the outer valve seat, and secondary throttling is achieved as the valve core gradually extends into the inner valve seat; moreover, the valve core comprises wedge-shaped surfaces, and a long throttling stroke is formed, thereby improving the throttling switching performance of the throttle valve; the symmetrical arrangement of the two wedge-shaped surfaces can balance the pressure on the two sides, thereby improving the stability of the valve core under force.

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.

A method for monitoring solids content during drilling operations may include collecting real-time cuttings image data at a surface outlet of a natural resource well, determining cuttings characteristics data based on the real-time cuttings image data, collecting real-time surface mud data, and determining real-time, one-dimensional downhole cuttings information based on a multi-dimensional computational fluid dynamics model. The cuttings characteristics data may include cuttings size distribution, cuttings volume, cuttings velocity, cuttings orientation, cuttings area, or combinations thereof. The real-time surface mud data may include inlet mud parameters, drilling operational parameters, well planning parameters, or combinations thereof. Determining real-time, one-dimensional downhole cuttings information may include converting the multi-dimensional computational fluid dynamics model into a one-dimensional continuous cuttings transport model and computing an integrated one-dimensional continuous cuttings transport model. Inputs to the integrated one-dimensional continuous cuttings transport model may include the cuttings characteristics data and the real-time surface mud data.

The invention discloses a while-drilling pressure monitoring and regulating device for a complex fractured reservoir, and relates to the technical field of well drilling automatic control, and the while-drilling pressure monitoring and regulating device comprises a data acquisition module which comprises a micro-resistivity imaging logging device and a well drilling data acquisition device; the micro-resistivity imaging logging device is used for acquiring well wall imaging data to obtain crack characteristic parameters; the drilling data acquisition device is used for acquiring operation parameters in the drilling process; the data analysis module is used for evaluating the total fracture pressure, calculating the pressure gradient while drilling and constructing a seepage model to obtain the fracture flow according to the fracture characteristic parameters and the operation parameters; and the self-adaptive control module is used for calculating the optimal bottom hole pressure according to the fracture flow in combination with the operation parameters, and controlling the pressure while drilling based on the optimal bottom hole pressure. Real-time evaluation of the fracture pressure state and self-adaptive regulation and control of the bottom hole pressure can be achieved, and the safety of the drilling process is effectively improved.

The invention relates to the technical field of mining machinery, in particular to a gold mine mining blasting automatic trepanning device and a trepanning method.The gold mine mining blasting automatic trepanning device comprises a base plate, the base plate is an assembly carrier of the drilling device and can be externally connected with an engineering vehicle or an engineering mechanical arm, a mounting frame is fixedly mounted on the base plate, and the mounting frame is a frame body with an opening in the top; the guide frame is fixedly arranged at the top of the mounting frame, and the guide frame is an annular frame body internally provided with a clamping groove; the gear ring is rotationally mounted in a clamping groove in the guide frame; and the rotating frame is fixedly arranged in the gear ring. By means of the spiral blades on the drill rod, fragments generated in the drilling process are synchronously pushed out, the situation that the fragments are accumulated near the drill bit to affect efficiency is prevented, meanwhile, cooling water is allowed to enter a drilling area through the arrangement of the flow guide through hole and the connecting pipe in the drill bit, the fragments are helped to be flushed out of the hole, and the drilling efficiency is further improved.

The present disclosure relates to the technical field of drilling fluid, and discloses a high density environmentally friendly polymer water-based drilling fluid with resistance to 240° C. and saturated salts, a preparation method therefor and use thereof. The water-based drilling fluid comprises a micro-crosslinked heterocyclic polymer filtrate reducer, a hyper-branched strongly adsorbed filtrate reducer, a nanometer intercalated complex shearing potentiator, a flexible outer and rigid inner microsphere plugging agent, and water, wherein the micro-crosslinked heterocyclic polymer filtrate reducer is prepared by reacting sodium p-styrene sulfonate, N,N,N-trimethyl-3-(2-methylallylamino)-1-propyl ammonium chloride, N,N-diethyl acrylamide, N-vinyl caprolactam, tetramethyl ethylenediamine with phenyl triethoxy silane. The high density environmentally friendly polymer water-based drilling fluid with resistance to 240° C. and saturated salts of the present disclosure can exhibit good performance at high temperature and high salinity conditions, and has desirable weighting capability, it can meet the requirements of drilling well in the deep oil and gas formations.

A slurry separation and purification device for bridge pile foundation excavation, comprising a temporary storage tank (1) and a settling tank; a residue guide channel (11) is fixedly connected to one side of the temporary storage tank (1), and the other side is rotatably connected to a circular pipe (12); the temporary storage tank (1) is fixedly connected to a support (13), the support (13) being fixedly connected to an inner pipe (14); the circular pipe (12) is rotatably sleeved on the outside of the inner pipe (14) and is rotatably connected thereto, the other end of the inner pipe (14) is connected to a water pump, and the other end of the circular pipe (12) is fixedly connected to an extraction and filtering device (2); the extraction and filtering device (2) comprises a branch pipe (21), the branch pipe (21) being communicated with the circular pipe (12); a filtration cone (22) is provided at the end of the branch pipe (21) away from the circular pipe (12), and the bottom of the filtration cone (22) is provided with a suction pipe (23); a blocking plate (24) is hinged to the upper end of the suction pipe (23), a torsional spring being provided on a hinge shaft of the blocking plate (24), and a discharge port (25) being provided at the upper end of the filtration cone (22); the support (13) is fixedly connected to a driving device (3), and the driving device (3) drives the circular pipe (12) to rotate forwards and backwards alternately.

A downhole tool includes a tool body including an uphole joint and a downhole joint configured to couple within a wellbore tubing string that extends in a wellbore. One or more flow directing paths are formed on an outer surface of the tool body and configured to rotate a portion of the tool body in response to a fluid flow within the wellbore tubing string. One or more ports are disposed around a circumference of the tool body; and a piston is configured to adjust between an open position such that the one or more ports are open to enable injection of a lost circulation material circulated through the tool body and into the wellbore and a closed position such that the one or more ports are closed to block injection of the lost circulation material into the wellbore from the tool body.

In one embodiment, the disclosure provides a method on a drilling fluid. The method may include acquiring data from each of a particle-size analyzer, x-ray fluorescence instrument, a mud check, and optionally an x-ray diffraction instrument, to yield acquired data for each of a plurality of drilling mud samples, wherein: (a) the particle size analyzer measures a plurality of drilling mud samples; (b) the x-ray fluorescence instrument and the x-ray diffraction instrument measure a mineral analysis of the plurality of drilling mud samples; and (c) the mud check measures properties of the plurality of drilling mud samples. Further, the method may include plotting a particle size distribution curve for at least one of the plurality of drilling mud samples, and calculating an amount of abrasive formation material(s) within at least one of the plurality of drilling mud samples. Further still, the method may include adjusting the drilling fluid.

A milling bit valve is disclosed for improved debris collection within a wellbore. The check valve can be part of a debris removal tool that includes a motor, pump, gearbox, bailer, milling bit, check valve, 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 system for downhole separation of at least one of fluids or solids comprises a fluid flow diverter to be positioned downhole in a well. The fluid flow diverter is configured to receive a formation fluid in a multilayer flow structure that comprises a production fluid and a nonproduction fluid, wherein the fluid flow diverter is configured to separate the production fluid and the nonproduction fluid by being adjusted such that more of the production fluid is above the fluid flow diverter than below the fluid flow diverter and such that more of the nonproduction fluid is below the fluid flow diverter than above the fluid flow diverter.

The invention relates to an expanding drill device for expanding a pilot bore produced from a starting point to a target point in the ground along a specified drilling line by moving the expanding drill device (10) along the specified drilling line in order to produce a bore in the ground or in rock for introducing a pipeline or a supporting system into the expanded bore, comprising: a housing (11); a drill head (14) that has a cutting wheel (15) which is arranged on the drill side (21) of the expanding drill device (10) 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 (16) 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 (21) centrally has at least one receiving chamber (24) for the loosened ground or the loosened rock, said receiving chamber being connected to a material conveyor device of the expanding drill device (10) for the loosened ground or the loosened rock via at least one removal opening (30); the drill side (21) has at least one drill chamber (38) that is equipped with the cutting wheel (15), which is arranged about the receiving chamber (24); the cutting wheel (15) has an annular design and is rotatably arranged about the central receiving chamber (24); and the receiving chamber (24) is connected to the drill chamber (38) via at least one conveyor opening (41) so that the loosened ground or the loosened rock can be conveyed into the receiving chamber (24) through the conveyor opening (41). According to the invention, at least one crusher (46) is provided in the drill chamber (38); the crusher (46) has crusher strips (49) on the rotatable cutting wheel (15) which move together with the cutting wheel (15) and crusher strips (47) on the receiving chamber (24) side facing the drill chamber (38) which are rigidly arranged together with the receiving chamber (24); and the crusher strips (47, 49) are arranged relative to one another such that a crusher gap (50) is produced between the crusher strips.

The invention belongs to the technical field of coal seam pressure relief and permeability improvement, and relates to a core rod jacking type mechanical reaming device and method, and the device comprises a core rod jacking type reamer, a core rod drill rod, a combined type rotary water tail and a hydraulic propeller which are sequentially connected from head to tail. The core rod jacking type reamer adopts a core rod pushing linkage structure, and the opening or closing state of a tool arm is accurately controlled; the core rod drill rod provides core rod guiding conduction, and deep hole reaming is achieved. The composite rotary water tail is used for rotary dynamic sealing connection of the drill rod core rod and the hydraulic propeller; the hydraulic propeller is used for being connected with hydraulic power and providing hydraulic propelling power for the guide rod. According to the device, hydraulic pressure serves as power to achieve rapid unfolding and retracting of the reaming cutter, the reaming speed is increased, the gas extraction drilling and reaming requirements are met, stable operation can be achieved under the complex geological condition, and the high field popularization value is achieved.

A system comprises a downhole separation system configured to be positioned downhole a well formed in a subsurface formation, wherein the downhole separation system is configured to receive formation fluid from the subsurface formation and configured to separate formation fluid into a production fluid and a nonproduction fluid. The downhole separation system comprises at least one device to be positioned in an opening of a downhole tubular through which the formation fluid is to be received from the subsurface formation, wherein the at least one device is to filter out at least a portion of solids in the formation fluid from entering the downhole tubular; and a controller configured to initiate an operation to clean the at least one device using a cleaning fluid.

Shown and described herein is a choke assembly for use with a downhole drill string. The choke assembly may include a rotating choke carrier, a stationary seat disposed on the rotating choke carrier and a rotating choke positioned adjacent to the stationary seat to create a seal surface. The choke assembly may further comprise a biasing mechanism applying a biasing force to press the rotating choke against the stationary seat and a flow port within the stationary seat which controls drilling fluid to allow some drilling fluid to become a bypass fluid and pass through the stationary seat.