3666results about "Drilling pipes" 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 geotechnical engineering pile foundation equipment, in particular to intelligent cast-in-place pipe pile equipment integrated with a multi-source sensor and a construction method. A spiral sleeve; a double-layer sleeve wall protection system; an outer sleeve anti-rotation pressing system; and a pile core soil anti-rising telescopic system and the like. The intelligent PCC pile construction equipment integrates torque, rotating speed, drilling speed, drilling pressure and other multi-source sensors and an artificial intelligence algorithm to achieve intelligent sensing and control over a pile machine, efficient combined soil spinning of a spiral sleeve and a double-layer sleeve wall protection system is achieved through a hollow rotating power equipment system, an annular cavity is rapidly formed, a reinforcement cage is put down, concrete is poured to form a PCC pile, and the construction efficiency of the PCC pile is improved. Finally, the inner sleeve and the outer sleeve of the double-layer sleeve wall protection system are pulled out in a vibrating mode at the same time under the action of the winch up-pulling system, and the inner sleeve and the outer sleeve are in butt joint and reset with the annular rotary excavating soil taking system, the problems that a traditional PCC pile is limited in application in complex stratums and a reinforcement cage cannot be put down are solved, and the construction intelligence is achieved.

An anchor rod mounting trolley belongs to the technical field of tunnel construction and comprises a movable chassis, a grouting system and an operation system. The operating system comprises a working arm, a hanging basket device and a propelling device; the grouting system and the working arm are both installed on the movable chassis, the hanging basket device is installed on the working arm, and the propelling device is installed on the hanging basket device. The grouting system is used for injecting grout into an anchor rod hole; the working arm is used for adjusting the positions of the hanging basket device and the propelling device relative to the anchor rod hole; and the propelling device is used for inserting the anchor rod body into the grouted anchor rod hole. The mechanical degree can be improved, the labor intensity is reduced, the operation efficiency is improved, and the construction cost is reduced.

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 discloses a rigid casing stabilizer and relates to the technical field of oil field low-carbon exploitation. An annular counter bore is upwards formed in the lower end face of the centralizing sleeve, a lifting sleeve is arranged in the annular counter bore and connected with the annular counter bore through threads, the upper portion of the lifting sleeve is connected with a compression spring A through a plane bearing, the upper portion of the compression spring A abuts against the bottom of the annular counter bore, and a balance cutting mechanism is arranged on the lower portion of the lifting sleeve. The drilling tool has the beneficial effects that the balance cutting mechanism is arranged on the lower portion of the centralizing sleeve, when the well diameter is irregular during casing running and the main cutting block and the auxiliary cutting block encounter the inner protrusion of the well wall, the lifting sleeve starts to rotate and ascend, the main cutting block and the auxiliary cutting block cut the well wall, the casing can be smoothly put into a shaft, and the drilling tool is convenient to use. And during cutting, large bending force cannot be formed on the casing pipe, so that the casing pipe is protected.

The invention belongs to the technical field of petroleum and natural gas exploration and development, and particularly relates to a coiled tubing bottom seal dragging pressure testing and leakage finding packer and a using method thereof, and the pressure testing and leakage finding packer comprises an upper centralizer, a pressure balancing mechanism, a setting packing mechanism and a lower centralizer which are coaxially and sequentially connected in a threaded mode. The pressure balance mechanism comprises a sleeve shell assembly and a pressure relief assembly. A pressure relief opening is formed in the side face of the sleeve shell assembly, and the pressure relief assembly is arranged in the sleeve shell assembly. The setting packing mechanism comprises a central pipe; a rubber sleeve assembly, a slip assembly and a centralizing assembly are sequentially installed on the basis of the center pipe from top to bottom, the rubber sleeve assembly is movably connected with the center pipe in an axial limiting mode, the slip assembly is fixedly connected with the centralizing assembly, and the centralizing assembly is movably connected with the center pipe based on the track pipe groove. According to the technical scheme, pressure bearing reasons and leakage point positions which cannot be found out by dragging pressure testing for multiple times in one-time well entering can be achieved, and it is guaranteed that follow-up fracturing construction operation of the shale gas well is safely and efficiently carried out.

The invention discloses a concentric tube geothermal well structure capable of improving heat exchange efficiency. The concentric tube geothermal well structure comprises a first well opening section and a second well opening section. The first well opening section comprises a first casing pipe, and first well cementation cement is arranged between the inner wall of the first well opening section and the first casing pipe; the second well opening section is provided with a second casing pipe, second well cementation cement and a central casing pipe; a distance is arranged between the second casing pipe and the well wall of the second well opening section, second well cementation cement is arranged between the center casing pipe and the second casing pipe, a water stopping device is arranged at the upper end of the second well cementation cement and is of a reducing structure with the diameter sequentially increased from top to bottom, and the inner wall of the top end of the water stopping device is connected with the center casing pipe. The bottom end of the water stop device is connected with the second sleeve; a packing structure is arranged at the bottom end of the second well cementation cement, and a permeable section is arranged at the lower end of the packing structure. The invention further provides a construction method of the geothermal well structure. The structure is reliable, the heat exchange efficiency is improved, and the industrial long-term operation requirement is met.

The invention belongs to the technical field of geotechnical engineering drilling, and particularly relates to an instant pipe-following anti-falling object device for broken stratum drilling, which comprises a drilling machine power head and a drilling rod, a drill bit is arranged at one end of the drilling rod, an inner wall protection sleeve is arranged outside the drilling rod, and the inner wall protection sleeve is connected with the drilling machine power head through a linkage assembly. An outer wall protection sleeve is arranged outside the inner wall protection sleeve, the outer wall protection sleeve and the inner wall protection sleeve are connected through an elastic assembly, a sliding fit clearance cavity is formed between the outer wall protection sleeve and the inner wall protection sleeve, and a sliding guide assembly and a permanent magnet assembly are arranged in the sliding fit clearance cavity; a sensing assembly and a propelling assembly are arranged on the drill rod; according to the device, by integrating the linkage assembly, the elastic assembly, the permanent magnet assembly and the central controller, instant synchronous movement of the wall protection sleeve and the drill bit is achieved, hole wall collapsing objects are effectively blocked, drill burying and drill jamming accidents are completely eradicated, and the construction efficiency is improved.

The invention provides an impact rotary drilling hydraulic control system of a dinting machine, which belongs to the technical field of hydraulic control systems and comprises a variable pump, a pilot oil source control valve group, a proportional multi-way valve, a shuttle valve I, a one-way pressure reducing valve, a shuttle valve II, a drilling machine pilot handle group, an impact rotary drilling machine, a bidirectional hydraulic lock and a drilling machine feeding oil cylinder. According to the hydraulic control system for percussive rotary drilling of the dinting machine, the percussive rotary drilling machine can perform stepless speed regulation between two speeds, high-frequency percussive or low-frequency percussive operation can be flexibly used according to rock stratum and geological working conditions, the application range of equipment is greatly widened, and the hydraulic control system can be used for rock stratums with high hardness, weathered rock stratums and hard and brittle geology. And during low-frequency impact operation, one-key linkage operation can be realized, namely, the functions of feeding, rotating and impacting of the drilling machine can be completed by operating the impact pilot handle.

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.

A coiled tubing unit (CTU) for performing subterranean wellbore operations can include a base and a first tubing reel positioned on a first portion of the base, where the first tubing reel includes a first spool and a first coiled tubing, and where the first spool is configured to rotate in order to move the first coiled tubing within a wellbore within a subterranean formation. The CTU can also include a second tubing reel positioned on a second portion of the base, where the second tubing reel includes a second spool and a second coiled tubing, and where the second spool is configured to rotate in order to move the second coiled tubing within the subterranean formation. The first tubing reel and the second tubing reel may be configured to be operated simultaneously and independently of each other.

The present application is suitable for pile foundation positioning technical field, provide a kind of pile foundation positioning device, including base, the mounting bracket is fixed on the base, the base is provided with avoiding hole, further include: guide sliding block, main shaft, helical blade, mounting plate, guide shaft, mounting block, drive assembly, reciprocating mechanism, second transmission assembly and disengaging mechanism.Reciprocating mechanism is driven mounting block to reciprocate up and down on guide shaft by the way of guide sliding block moves in guide chute, further make main shaft and helical blade reciprocate up and down while moving down, it is convenient to discharge the soil drilled by helical blade, improve the efficiency of pit positioning, when main shaft is contacted with rock, disengaging mechanism removes the transmission connection of main shaft and first motor and stops mounting block to reciprocate up and down on guide shaft, make mounting block move upwards along guide shaft, main shaft has no downward thrust at this time, to avoid the instant collision of helical blade and rock when main shaft is contacted with rock.

The invention relates to the technical field of coal mine drilling, and provides an open type hydraulic clamping device which comprises a main body structure with stepped holes formed in the two sides, piston rods are slidably connected into the stepped holes, slips are detachably connected to the small ends of the piston rods, and sealing cavities are formed in the two sides of the large ends of the piston rods. The side, away from the slip, of the sealing cavity is communicated with an oil inlet pipe of a hydraulic system, the other side of the sealing cavity is communicated with a guide-in pipe, the tail end of the guide-in pipe is communicated with an oil return pipe and an overflow pipe of the hydraulic system through a three-way valve, the overflow pipe is communicated with an overflow hole in the side portion of the main body structure, and the large end of the piston rod can block or open the overflow hole. And hydraulic locks are arranged on the oil inlet pipe and the ingress pipe. When power is cut off suddenly, the hydraulic locks on the oil inlet pipe and the guide-in pipe can be locked rapidly, so that the pressure maintaining effect on the two sealing cavities can be achieved, the two slips can maintain the clamping force of a drilling tool, the drilling tool is prevented from sliding off, and the safety of underground equipment or personnel is guaranteed.

The invention provides a coal mine crawler-type full-hydraulic underground drill rig, and belongs to the technical field of drilling mechanical equipment, the coal mine crawler-type full-hydraulic underground drill rig comprises a crawler chassis, the upper end of the crawler chassis is provided with a driving mechanism, an angle adjusting mechanism and a height adjusting mechanism, the height adjusting mechanism is provided with a mounting table, and the upper end of the mounting table is provided with a drilling mechanism; the driving mechanism comprises a lifting plate, a rotating shaft is rotatably mounted in the lower end of the lifting plate, and a rotating gear is arranged on the circumferential surface of the rotating shaft; by means of the arranged driving mechanism, a single servo motor serves as core power, power is distributed to an angle executing mechanism, a height executing mechanism and a drilling executing mechanism according to needs through a liftable rotating gear and a precise toothed plate transmission system, a redundant structure formed by stacking a plurality of drives is abandoned, the whole drilling machine driving system is highly integrated in layout, and the drilling efficiency is improved. The size is greatly reduced, the device perfectly adapts to a narrow tunnel space, and meanwhile the manufacturing cost is reduced.

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.

A system includes a power unit, and a coiled tubing (CT) reel for spooling a CT string. The system includes a CT injector for injecting the CT string from a surface into a subsurface to construct a geothermal borehole. The CT injector includes a gooseneck for guiding the CT string into a body of the CT injector. The system includes a first arm for coupling the CT reel and the power unit. The system includes a second arm for coupling the CT injector and the power unit. The system is configured to modify the distance between the CT reel and the gooseneck by adjusting at least one of (i) the length of the first arm or (ii) the length of the second arm.

The invention discloses a variable-diameter drill bit for a rotary jet grouting anchor cable and a construction method, and the variable-diameter drill bit comprises a drill rod, an outer pipe, a jack, an adjustable drill bit and a supporting assembly; the fixed end of the jack is connected to the end of the drill rod, and the movable end of the jack is hinged to one end of the adjustable drill bit. A blade is arranged at the other end of the adjustable drill bit, and the cutting diameter of the adjustable drill bit can be adjusted through the jack; the supporting assembly is arranged on the outer side of the outer pipe. A supporting assembly is arranged on the outer side of the outer pipe, the movable end of the supporting assembly is connected with the adjustable drill bit, and when the adjustable drill bit conducts angle adjustment, the supporting assembly is configured to change the outer diameter of the supporting assembly, so that the hole channel is adaptively supported. The problems that in the prior art, the hole forming diameter of the rotary jet grouting anchor cable is uncontrollable, holes are prone to collapsing under the complex geology, the construction efficiency is low, and the anchor cable failure risk is high are solved, and the technical purposes of precise hole forming of the rotary jet grouting anchor cable and safe and efficient construction are achieved.

The invention discloses a seabed shallow casing section thermal insulation structure for polar region supercritical carbon dioxide drilling, which comprises a casing, a thermal insulation coating, a protective coating, an annular cement slurry layer, an electric heating pipe, a sensor module, a wireless conductive module, a ground system and a seabed wireless transmission module, and is characterized in that the electric heating pipe is fixed on the outer wall of the casing through a hoop; the outer wall of the casing pipe is sequentially coated with a heat preservation coating, a protective coating and an annular cement paste layer from inside to outside, the wireless conductive module is integrated at the end of the casing pipe, and the ground system comprises a ground data acquisition system and a ground control center. The sea surface platform is provided with a ground data acquisition system and a ground control center which are connected with the seabed wireless transmission module through an umbilical cable, and temperature and pressure data acquired by the sensor module are uploaded to the ground control center. According to the invention, the problems of rapid heat loss, annular air channeling, casing mechanical property degradation, poor drilling fluid fluidity and the like of the seabed shallow casing section in the polar region extreme low-temperature environment are solved.

The invention relates to the technical field of high-altitude drilling operation, in particular to a modular quick-connection vibroflotation guide rod and a using method thereof.The modular quick-connection vibroflotation guide rod comprises an upper guide rod and a lower guide rod, a male connector assembly is arranged at the bottom end of the upper guide rod, the modular quick-connection vibroflotation guide rod comprises a male connector body and a connecting ring rotationally arranged outside the male connector body in a sleeving mode, and a clamping piece is arranged on the connecting ring in a protruding mode. And an axial guide key groove and an L-shaped guide groove are formed in the female joint body of the lower guide rod. During insertion, the axial guide key groove limits rotation of the male joint main body, and pure axial blind insertion of an internal pipeline is guaranteed; meanwhile, the clamping piece slides in along the L-shaped guide groove, the connecting ring is forced to rotate in the radial direction and is matched with the inner and outer conical surfaces to achieve zero-clearance locking. When the pipe is pulled out, the unlocking sliding sleeve is upwards and linearly lifted, the sliding pin forces the clamping piece to be unscrewed and unlocked, and meanwhile the internal micro-channel one-way valve is triggered to introduce high-pressure fluid to wash silt. Dynamic and static separation and manual-free one-key unlocking in the inserting and pulling process are achieved, and the reliability and efficiency of ultra-deep vibroflotation construction are greatly improved.

A method of retrofitting a service rig includes obtaining a service rig having a plurality of mechanically powered equipment for performing well service operations. The method also includes retrofitting the service rig with a plurality of electrically powered equipment for performing well service operations.

The invention relates to an underground multi-mode overflow monitoring system and method, and belongs to the technical field of well drilling monitoring, the system is arranged in an axial through hole of a drill collar body, and the system comprises a central fluid channel assembly comprising a Venturi tube section communicated with the through hole; the annular sensor array assembly comprises a barrel which is arranged on the outer side of the Venturi tube section in a sleeving mode and attached to the inner wall of the drill collar body, an annular flow channel is formed in the position, corresponding to a high-pressure area of the Venturi tube section, in the barrel, one end of the annular flow channel is closed, and the other end of the annular flow channel is a Venturi drainage ejector communicated to the high-pressure area of the Venturi tube section; the annular flow channel is provided with a plurality of drainage channels, and the annular flow channel is provided with a multi-mode sensor along the circumferential inner wall of the annular flow channel; a plurality of sampling holes communicated with the drainage channel are formed in the drill collar body; the system further comprises a processor, all the sensors are connected with the processor, and the processor communicates with the measurement-while-drilling system. The method and the device have the effect of improving the stability of monitoring work in a complex drilling environment.

An orientable weight bar for a downhole tool includes a weight housing fixedly connectable to the downhole tool; an eccentric weight, and a weight lock. The eccentric weight is positioned in the weight housing. The eccentric weight has an offset mass along a radial portion thereof. The eccentric weight is rotationally and gravitationally movable within the weight housing to allow the offset mass to move to a weighted position within the weight housing. The weight lock is operatively connectable between the eccentric weight and the weight housing to secure the offset mass in the weighted position within the weight housing whereby, as the downhole tool advances through the wellbore, the eccentric weight gravitationally urges a portion of the downhole tool toward the bottom of the wellbore.

The utility model relates to the technical field of pile machines, and discloses a multifunctional all-in-one machine which comprises a chassis, a main arm and a clamping box, the main arm and the clamping box are sequentially arranged on the chassis in the longitudinal direction, a power head is arranged on one side of the main arm, a winch used for driving the power head to move up and down along the main arm is arranged on the chassis, and a walking device is arranged on the lower portion of the chassis. The clamping box is slidably connected with the chassis, and the main arm is rotatably connected with the chassis. All processes of drilling and pile pressing can be completed through one device, the clamping box and the main arm can move independently, pile pressing and drilling operation can be carried out at the same time, and construction efficiency can be greatly improved. The main arm can longitudinally translate and can horizontally rotate, and the clamping box can independently and longitudinally translate, so that the drill rod can be quickly and accurately moved to the next pile position under the condition that the chassis is not moved, the operation is flexible, and the positioning is accurate.

The invention relates to underground enclosure grouting reinforcement equipment and a reinforcement process, and relates to the technical field of grouting reinforcement, the underground enclosure grouting reinforcement equipment comprises a drilling machine, a drilling rod is installed in the drilling machine, a drill bit and a feeding pipe are installed at the two ends of the drilling rod respectively, and the spraying angle of a discharging pipe can be accurately controlled underground through a gear and rack transmission mechanism; therefore, the grout can be sprayed to a specific soil layer or crack needing to be reinforced in a targeted mode, accurate striking and local strengthening of soft and loose areas are achieved, blind flowing and waste of the grout in non-target areas are greatly reduced, the grout wastage rate is effectively reduced, the reinforcing effect is guaranteed, meanwhile, grouting materials are saved, and the grouting cost is reduced. And the construction cost is reduced.

A system includes a drill pipe and a rotating control device including a housing defining a bore through which the drill pipe extends during a managed pressure drilling operation, a sealing element disposed in the housing that is configured to seal against the drill pipe to block fluid flow through an annular space surrounding the drill pipe, a bearing assembly disposed in the housing that enables the sealing element to rotate relative to the housing, and means for detecting eccentricity or misalignment of the drill pipe within the rotating control device during the managed pressure drilling operation.

The invention provides a casing well drilling well cementation-free tubular column and a construction method, the casing well drilling well cementation-free tubular column comprises a casing string, a drill bit is arranged at the lower end of the casing string, and the casing string replaces a drill rod to drive the drill bit to drill; the self-expansion packers are arranged in the axial direction of the casing string at intervals, can expand in the environment of an expanding agent and are fixed in the stratum; wherein the casing pipe string comprises a casing pipe without a coupling. By means of the self-adaptive expansion characteristic of the self-expansion packer, traditional cement well cementation is replaced, packing failure caused by cement performance fluctuation or casing welting is avoided, and the annulus sealing reliability is improved.

The invention provides a drilling operation method adopting a pipe shed drilling machine, and belongs to the technical field of drilling operation of drilling machines. Initial positioning deviation is controlled through three-dimensional positioning calibration of a guide pipe and a space stabilization structure, drilling track deviation correction is achieved through real-time monitoring of a hole inclination angle and an eccentric drilling tool; the method comprises the following steps: dynamically adjusting drilling parameters according to a geological radar detection lithology type, establishing a slurry seepage diffusion fluid-solid coupling model to calculate a slurry diffusion radius and a filling rate, establishing a double-layer game optimization model to solve a Nash equilibrium point of grouting pressure and a slurry water-cement ratio, and adopting double-slurry pre-plugging combined with superfine cement reinforcement for a fracture zone. A drill rod and stratum interaction finite element model is established to recognize the dangerous section position, and a stabilizer or a thickened drill rod is additionally arranged, so that the technical problem that grouting reinforcement parameters and drilling track control precision are difficult to optimize synchronously in the pipe shed drilling process is solved.

The invention relates to the technical field of oil field oil production engineering, in particular to an underground data acquisition unit with flow, pressure and temperature monitoring functions and a method. The method is suitable for underground working condition monitoring of submersible motor type lifting equipment such as submersible screw pumps, submersible plunger pumps and submersible centrifugal pumps. The unit comprises a pressure-resistant shell, wherein a central pipe, an electromagnetic flowmeter, two pressure and temperature sensors and an underground parameter collector are integrated in the pressure-resistant shell; the two sensors are used for measuring the temperature and pressure of liquid flow of the central pipe and the temperature and pressure of an oil casing annulus respectively; the electromagnetic flowmeter measures the flow, and real-time temperature and pressure data are used for compensation to improve the precision. The unit is further provided with a collecting pipe, an upper end, a lower end, a connecting sliding ring, an annulus / oil pipe inner testing channel, a sealing rubber ring and the like. Through the integrated design, synchronous high-precision in-situ monitoring of underground key parameters is achieved, the problem that underground data of multiple instruments are not synchronous is solved, and a reliable data terminal is provided for an intelligent oil field.

The invention relates to the technical field of ground source heat pump drilling, in particular to ground source heat pump drilling auxiliary equipment which comprises a rigid supporting unit, an elastic supporting unit, a conversion unit and an adjusting unit. Through cooperative cooperation of the rigid supporting unit, the elastic supporting unit, the conversion unit and the adjusting unit, self-adaptive switching of the working state and the contact area under the borehole diameter change is achieved, the inner sleeve and the outer sleeve rotate relatively in the wide-diameter section, the main supporting piece and the auxiliary supporting piece make contact with the borehole wall together to form stable supporting, diameter expansion caused by excessive scraping and loosening of the stratum is effectively avoided, and the working efficiency is improved. Meanwhile, the friction resistance with the well wall is reduced; in the narrow-diameter section, the inner sleeve and the outer sleeve are switched to be in a synchronous rotating state through the switching unit, the adjusting unit drives the auxiliary supporting piece to retract, only the main supporting piece makes contact with the well wall independently and rotates to scrape the wall, the friction resistance is greatly reduced, meanwhile, mud cakes are efficiently removed, and the clamping stagnation hidden danger is eliminated.