1038results about "Core removal" patented technology

The invention relates to the field of constructional engineering concrete detection, in particular to a reamer bit and a concrete repairing method.The reamer bit comprises a mounting base, at least two drill arms and at least two supporting rods; one end of the drill arm is hinged with the mounting seat, a fixing pipe is arranged between the hinge points of the drill arm and the mounting seat, the fixing pipe is connected with a positioning rod in a sliding manner, one end of the supporting rod is hinged with the positioning rod, and the other end of the supporting rod is hinged with the drill arm. When the reamer bit is used, the angle of the drill arm can be flexibly adjusted by pressing the positioning rod, the hole diameter of a reaming hole can be accurately controlled according to actual repairing requirements, and the reamer bit is suitable for repairing scenes of coring holes of different sizes and depths; the formed horn mouth with the wide inside and the narrow outside can be embedded into original concrete like a tenon after concrete is poured, the combining capacity of new concrete and old concrete is greatly improved, and it is guaranteed that a repaired area is not prone to separation.

The invention discloses a continuous deflecting coring method for realizing wire-line coring orientation, which relates to the technical field of drilling, and specifically comprises the following steps of: selecting a bent screw drill and a matched wire-line coring tool according to geological conditions and a designed drilling track, assembling and connecting the bent screw drill and the matched wire-line coring tool, and putting the bent screw drill and the matched wire-line coring tool into a drilling hole; in the drilling process, the hole bottom power drilling tool provides drilling power, a bent angle of the bent screw drilling tool enables a drilled hole to be inclined according to the design direction, and a rotor cavity of the hollow screw drilling tool allows an internal assembly and a core barrel to pass through. According to the continuous deflecting coring method for wire-line coring orientation, the high-precision directional drilling technology and the wire-line coring technology are organically combined, the problem of exploration of irregular deposited ore deposits and concealed ore deposits is solved, the precision and efficiency of geological exploration are improved, and by adopting the bent screw drill and the matched wire-line coring tool, the geological exploration efficiency is improved. Continuous directional drilling and continuous wire-line coring are carried out at the same time, the number of times of drill lifting is reduced, and the auxiliary time is shortened.

The invention provides an operation control method, system and equipment of a coring drilling machine and a program product. The method comprises the steps that geological information of a construction area is obtained, and geological features are analyzed; constructing rock stratum partitions and predicting the rock stratum depth; configuring partition features and predicting a drilling scheme; constructing a prediction data transmission scheme; controlling the preset coring drilling machine to drill the construction area and obtain actual drilling data, and analyzing rock stratum data from the actual drilling data; and selecting a reference rock stratum partition, and performing operation and data transmission based on the prediction drilling scheme and the prediction data transmission scheme of the reference rock stratum partition. According to the method, accurate prediction of geological information is matched with dynamic adjustment of data transmission, the rock stratum condition is mastered dynamically and accurately, the stability and timeliness of data transmission in the operation process are improved while accurate and efficient operation of the coring drilling machine is guaranteed, most of data analysis and decision-making processes are completed intelligently, and the working efficiency of the coring drilling machine is improved. And the automation level of operation is improved.

Methods and systems are disclosed. The methods may include determining a first sequence of permeabilities by subjecting a rock sample to a first sequence of confining stress, axial stress, pore pressure (CSASPP) triplets and determining a first rock parameter using the first sequence of permeabilities, the first sequence of CSASPP triplets, and a first permeability model. The methods may further include determining a second sequence of permeabilities by subjecting the rock sample to a second sequence of CSASPP triplets and determining a second rock parameter using the second sequence of permeabilities, the second sequence of CSASPP triplets, and the first permeability model. The method may still further include determining an in situ permeability for an in situ rock based on an initial permeability, a second stress sensitivity parameter, a first stress sensitivity parameter, a confining stress value, axial stress values, a pore pressure value, and a second permeability model.

The invention discloses a sand field coring method, which relates to the technical field of geological exploration, and comprises the following steps: S1, moving a drilling machine to a coring position and fixing, and adjusting the posture of the drilling machine according to the sand field terrain and coring requirements; s2, drilling tools are selected to be assembled according to the sand ground stratum characteristics, wherein the drilling tools comprise but are not limited to a hard rock trepanning drill bit, a drill rod and a sampling pipe; and S3, the hard rock trepanning drill bit is adopted to implement initial drilling, and a stable orifice is formed by controlling the drilling speed and pressure. According to the sand field coring method, the stable hole opening is formed through the hard rock trepanning drill bit, the drilling parameters are dynamically adjusted, complex stratum conditions are effectively dealt with, the coring success rate is remarkably increased, the integrity and representativeness of samples are ensured, the drilling efficiency and the equipment utilization rate are optimized through the technological method, and the sand field coring efficiency is improved. And the Kalman filtering algorithm is adopted to carry out fusion processing on multi-sensor data, and the output of the hydraulic system is adjusted in real time, so that the drilling efficiency is improved.

The monitoring control system comprises a high-definition image acquisition module, a measurement-while-drilling module, a coring drilling machine working parameter acquisition module, a data receiving and processing module, a control operation module, a man-machine interaction display module, a central algorithm module and a cloud platform module. The invention further discloses a control method of the pile foundation coring drilling machine monitoring control system. The measurement-while-drilling module collects the rotating torque and the azimuth angle in the drilling process of a coring drill barrel in real time and provides comprehensive data support, the data receiving and processing module and the central algorithm module conduct real-time processing and analysis on collected data, automatic marking and feature recognition are conducted on each section of core sample, and therefore the core sampling accuracy is improved. And the coring drilling is controlled through the control operation module, so that the integrity of a core sample, the accuracy of coring detection and the authenticity of the core sample are improved through collection and automatic control of working data, and reliable data support is provided for subsequent pile body quality evaluation.

A method may include performing, by a drilling system, a drilling operation to produce a wellbore in a geological region of interest. The method may further include determining time elapse data describing an amount of time between the drilling operation and a hydraulic stimulation operation. The method may further include determining borehole stress data based on the wellbore, reservoir data, and geological data. The method may further include determining thermal diffusivity data regarding a temperature front in the geological region of interest based on the time elapse data, the reservoir data, and the geological data. The method may further include determining a wellbore breakdown pressure of the geological region of interest based on the thermal diffusivity data, the geological data, the borehole stress data, and the reservoir data. The method may further include transmitting a command to a stimulation control system based on the wellbore breakdown pressure.

The invention discloses a directional deflecting wire-line coring drilling device and a directional deflecting wire-line coring drilling method, relates to the field of drilling of soil layers or rocks, and solves the problems that an existing drilling device is high in deflecting direction control difficulty and small in deflecting amplitude. According to the technical scheme, the directional deflecting wire-line coring drilling device comprises a deflecting short section, a top short section and a bottom short section, the top short section and the bottom short section are arranged at the upper end and the lower end of the deflecting short section, a drill rod connector is arranged at the upper end of the top short section, and the lower end of the bottom short section is connected with a hollow motor. A cylindrical coring cavity is formed in the top short section, the deflecting short section, the bottom short section, the hollow motor and the drill bit; the top short section and the deflecting short section, every two adjacent deflecting short sections and the deflecting short section and the bottom short section are connected through deflecting connecting structures, two pull rope holes are formed between the top short section and the upper end face and the lower end face of each deflecting short section, pull ropes penetrate through the pull rope holes, and the postures of the deflecting connecting structures can be adjusted through the pull ropes. And linear drilling and directional drilling are realized.

Device (10) for guiding a user to mark a core sample (12) carried by a core tube (14), the device (10) including: a housing (20) mountable relative to the core sample (12) or the core tube (14) and having a marking guide (22) configured to be arranged adjacent the core sample (12) to guide marking; a communications module (26) operable to communicate with the downhole tool (16) to receive data; a user interface (28) operable to convey perceptible feedback to the user; and a processor (30) and associated memory (32). The processor (30) is configured to store data in the memory (32) and determine a marking position based on the data, and operate the user interface (28) to direct the user to cause relative rotation of the marking guide (22) and the core sample (12) so that the marking guide (22) is aligned with the marking position, allowing the user to use the marking guide (22) to mark the core sample (12) at the marking position.

The invention belongs to the technical field of moon sampling, and provides a casing type laser-assisted coring drilling tool for a moon-based extreme environment, which comprises a drill bit, a base, a laser head, a drill rod, a coring pipe and a motor, the bottom of the base is rotatably connected with a drill rod. The bottom of the drill rod is fixedly connected with a drill bit. A coring pipe is coaxially arranged in the drill rod, and an annular cavity is formed between the outer side face of the coring pipe and the inner side face of the drill rod. A laser head is mounted in the base; the laser head is located above the annular cavity, and laser emitted by the laser head penetrates through the annular cavity and is emitted out of the drill bit. Aiming at the lunar-based environment, through the synergistic mechanism of mechanical rotary rock breaking and laser-assisted softening, the lunar rock is softened by means of laser energy, the mechanical cutting resistance of the drill bit is greatly reduced, and efficient and continuous coring operation is achieved; the key technical problems that a traditional drilling tool is difficult in space arrangement, low in efficiency and the like are solved, and the efficiency of the lunar geology coring task and the rock sample fidelity are remarkably improved.

The invention provides a rotary impact type ultrasonic sampling device for deep rocks, which relates to the technical field of drilling and coring and comprises an anchoring unit, a feeding unit, a rotary unit, an impact unit and a coring unit which are sequentially connected from top to bottom. The device has the beneficial effects that the sampling device is firstly placed in a rock hole, and each anchoring tooth is fixed in the rock hole; then an ultrasonic transducer of the impacting unit and a motor of the rotating unit drive a drilling barrel to rotationally impact the rock, an electromagnet of the feeding unit drives a hydraulic cylinder to push the drilling barrel to drill downwards, the rock core enters the drilling barrel, and after the rock core in the drilling barrel reaches the needed length, the rock core pushes a push plate to move upwards to drive the lower end of a limiting rod to release a sliding block; the sliding block drives the core cutting rope to contract inwards to be in attached contact with a rock core, the core cutting rope cuts off the lower end of the rock core along with rotation of the drilling barrel, and therefore automatic drilling and coring can be achieved, coring operation is completed, the integrity of a rock core sample is guaranteed, and the core cutting device is particularly suitable for coring of deep hard rock.

The utility model discloses a broken soft coal bed pneumatic airtight coring device which comprises a coring outer cylinder, a coring drill bit and an adapter. A pressing ball seat is arranged in the adapter, a locking mechanism core pipe is arranged in the lower end of the pressing ball seat in a sleeved mode, and the locking mechanism core pipe is further sleeved with a force storage mechanism body pipe capable of moving in the axial direction. The lower end of the power storage mechanism main body pipe is connected with the coring inner cylinder through a power storage mechanism main body pipe extension section capable of axially moving; a limiting step is arranged on the outer wall of the force storage mechanism body pipe, a locking sliding sleeve is further arranged outside the force storage mechanism body pipe in a sleeving mode, and a force storage spring is further arranged between the limiting step and the locking sliding sleeve in an abutting mode. A locking ball is embedded in the pipe wall of the lower end of the force storage mechanism body pipe and can axially limit the locking sliding sleeve. A sealing ball valve is arranged in the coring inner cylinder, and the pushing cylinder can be pushed by the locking sliding sleeve to move in the axial direction to close the sealing ball valve. The closed coring device solves the problems of hole spraying, hole collapse and the like when an existing closed coring device is used in a broken soft coal seam.

A method for recovery of residual coal pillars by freezing accumulated water in room-and-pillar mining areas is provided. A feasibility of repeated mining of residual coal pillars in room-and-pillar goafs is distinguished based on production data and exploration data of a mine. An accumulated water in the room-and-pillar mining areas is frozen to replace a paste filling material, which envelopes collapse roofs and gangues in the room-and-pillar goaf as a whole. The room-and-pillar goaf is filled with a frozen ice body. Roadways and mining faces are arranged in the frozen ice body. Coal cutter cuts the residual coal pillars and the frozen ice body. With the advancing of the mining face, the residual coal pillars are gradually recovered and melted water after the cutting is pumped out.

The invention discloses an in-situ coring system and method for a soft rock extension roadway bottom plate. The system comprises a stable anchoring base, a drilling driving and propelling module, a stress adjusting module, a low-disturbance coring module, a rock core in-situ packaging and fidelity module and an intelligent integrated control unit. The stable anchoring base is used for fixing the system on a roadway bottom plate; the drilling driving and propelling module provides rotating power and axial feeding force for the drilling tool; the stress adjusting module is used for adjusting the stress state around the rock core; the low-disturbance coring module comprises a composite function coring drill bit and a double-layer coring pipe, and low-disturbance cutting and containing of a rock core are achieved. The rock core in-situ packaging and fidelity module is used for sealing and packaging the rock core in real time; and the intelligent integrated control unit adaptively controls the coring process according to sensor data. According to the invention, low-disturbance, high-precision and in-situ fidelity rock core acquisition of the soft rock roadway bottom plate can be realized, and the problems of large soft rock coring disturbance, difficulty in fidelity, low intelligent degree and the like are effectively solved.

The utility model relates to the technical field of well drilling coring, and discloses an elastic self-driven pressure maintaining coring tool which comprises a shell, a coring drill bit is fixedly arranged at the front end of the shell, an inner barrel and a coring assembly are sequentially and coaxially arranged in the shell, the rear end of the inner barrel is closed and fixedly connected with the shell, and a pressure maintaining device is arranged at the front end of the inner barrel. The coring assembly comprises a main spring, a positioning cylinder, a coring cylinder, a footage rod and a locking device, the main spring is used for providing pulling force towards the rear end of the inner cylinder for the positioning cylinder, one end of the coring cylinder is rotatably connected with the front end of the positioning cylinder, and the locking device is used for limiting the positioning cylinder to move towards the rear end of the inner cylinder; the footage rod penetrates through the front end of the positioning cylinder and is in sliding connection with the positioning cylinder, the footage rod is matched with the locking device, and when the footage rod slides towards the rear end of the positioning cylinder, limiting of the locking device to the position between the positioning cylinder and the inner cylinder can be relieved; according to the tool, the coring barrel can automatically return to the inner barrel when the footage is in place, and pressure-maintaining and fidelity coring of a deep rock stratum can be achieved.

The invention discloses a rock core drilling sampling device for coal mining, and relates to the field of coal mining, the rock core drilling sampling device comprises a base and a support frame, the support frame is fixed above the base, the middle part of the base is designed to be of an open structure, an outer cover body is arranged above the base, and a connecting frame is fixed above the outer cover body; a connecting frame is arranged above the outer cover body, a mounting seat is connected above the connecting frame, a vertical control mechanism is arranged above the mounting seat, the vertical control mechanism is connected with the supporting frame to control the vertical movement of the outer cover body, a sampling barrel is arranged in the outer cover body, and the upper part of the sampling barrel is designed to be of an opening-shaped structure. And the sampling barrel is rotationally connected with the outer cover body. According to the rock core drilling and sampling device for coal mining, through the arrangement of the hollow sampling barrel, the sampling barrel can permeate into a soil body to move, so that drilling and sampling can be synchronously carried out, a sampling hole does not need to be formed firstly, and the rock core drilling and sampling device is more convenient to use.

The present invention relates to a core drilling assembly, comprising an outer barrel assembly that includes a drill bit at one end and a coupling for connection to the drill rods at the other end thereof, the outer barrel assembly carrying an inner tube assembly that includes at least a core catcher, an inner tube and a head assembly, the core catcher being configured to grip and rotationally fix at least a section of the core sample relative to the core catcher thus also the inner tube and head assembly thereof, also including, - a measuring device being connected to the forward end of the head assembly, being mechanically and electromagnetically shielded from the outer environment, - the measuring device comprising at least a sensor and a data storage configured to measure and store the rotational orientation of the head assembly.

A rapid assembly and automatic sampling drilling tool for frozen soil layer exploration includes a fixed flow divider, a flow guide pipe, a coring pipe and a drill bit. The fixed flow divider is connected to the drill bit through the flow guide pipe and the coring pipe mounted between the fixed flow divider and the drill bit. Two ends of the flow guide pipe communicate with the fixed flow divider and a main flow channel in the drill bit respectively. Hot water in the fixed flow divider can be conveyed into the drill bit through the flow guide pipe and sprayed from a nozzle arranged on the drill bit for drilling and coring operations. An inlet of the coring pipe communicates with a coring channel in an inner cavity in the drill bit, and a core sample drilled by the drill bit is taken out through the coring pipe.

The invention relates to the technical field of surrounding rock drilling, in particular to a soft surrounding rock double-sleeve drilling coring device and a coring method.The soft surrounding rock double-sleeve drilling coring device comprises a coring drill bit, a connecting sleeve, a coring sleeve and a drilling machine connecting base, the connecting sleeve and the coring sleeve are of an inner-outer double-sleeve structure, and drilling and rock breaking are achieved through rotation of an outer pipe; the inner pipe is kept static through magnetic force provided by the magnetic steel. By means of the magnetic force fixing technology, equipment abrasion and failure caused by traditional mechanical friction or hydraulic limiting are avoided, and torsional force transmitted to a rock core by a coring pipe is effectively reduced so as to keep the rock core stable; on the basis of the magnetic attraction force requirement, a coring and magnetic steel selecting method is provided, and a calculation formula of the area needed by magnetic steel is deduced by analyzing parameters such as disturbance torque, an inclination angle and gravity distribution so as to optimize the magnetic adaptation performance of the device; the method can be widely applied to rock core collection of complex stratums such as coal mines, petroleum shale and soft surrounding rocks in geological exploration, the rock core breakage rate is greatly reduced, and the coring integrity is improved.

The invention relates to a thermochemical energy-storage heat-preservation coring device and method for oil and gas coring, magnesium sulfate heptahydrate is preset in an interlayer of a heat-preservation cylinder of the coring device, the underground temperature is stored by utilizing dehydration and heat absorption of the magnesium sulfate heptahydrate, and then the stored heat energy is released by utilizing water absorption and heat release of the magnesium sulfate to carry out core heat preservation. The thermochemical energy storage thermal insulation structure comprises a thermal insulation cylinder and a thermal insulation trigger device, wherein a thermochemical energy storage material and reactant water are placed in an interlayer in the thermal insulation cylinder; the heat preservation trigger device comprises a trigger probe, a self-trigger and a trigger spring. The underground temperature is stored through dehydration and heat absorption of the magnesium sulfate heptahydrate, the stored heat energy is released through water absorption and heat release of the magnesium sulfate for rock core heat preservation, and extra energy supply is not needed; meanwhile, the magnesium sulfate heptahydrate is non-toxic and stable in property, can store different heat in different temperature stages, and is suitable for heat preservation coring of different reservoir depths.

The invention relates to the technical field of road detection, in particular to a road surface thickness detection coring device for road engineering. Comprising a supporting frame, the supporting frame is fixedly connected with a sliding frame, the sliding frame is connected with a sliding block in a sliding mode, the sliding frame is rotationally connected with a driving lead screw, the sliding block is fixedly connected with a motor and a liquid pump, the sliding block is rotationally connected with a drill bit and provided with a liquid box, the liquid pump is fixedly connected with and communicated with a first circulation pipe, and the first circulation pipe is communicated with a second circulation pipe. The first runner pipe is rotationally and slidably connected with a rotating disc, and the rotating disc is slidably connected with a cam shell. The top of the core sample pushes the rotating disc, so that the rotating disc drives the cam shell to rotate, the cam shell drives the core sample to swing, the joint between the core sample and the roadbed is disconnected, the vibration influence of a traditional knocking mode on the whole core sample is avoided, the situation of core sample breakage is reduced, the integrity of the core sample is guaranteed, and then the sampling success rate is increased.

The invention discloses a variable-angle directional drilling and rock core fidelity packaging device which comprises an assembly bottom frame, an adjustable directional drilling mechanism and a self-sealing fidelity mechanism. The adjustable directional drilling mechanism comprises a drilling directional frame, a pair of bearing hydraulic cylinders are hinged and assembled between the drilling directional frame and the assembly bottom frame, a sliding assembly frame is assembled above the drilling directional frame in a sliding mode, and a driving motor is fixedly assembled on one side of the sliding assembly frame. The self-sealing fidelity mechanism comprises a clamping driving head, a sampling rock core pipe is assembled at one end, away from the driving motor, of the clamping driving head in a clamping manner, and a self-sealing sampling drill bit is assembled at one end, away from the clamping driving head, of the sampling rock core pipe in a clamping manner. By arranging the adjustable directional drilling mechanism and the self-sealing fidelity mechanism, the application range of the rock core drilling device is greatly widened, the sampling stability of rock core samples is guaranteed, and the application range and the sampling stability of rock core sampling are remarkably improved.

The utility model discloses a geological drilling coring device which comprises a frame body, a placing table is installed on the upper portion of the frame body in a sliding mode, a motor is connected to the upper portion of the placing table through bolts, the motor is connected with a transmission shaft through a belt, a coring barrel is fixedly connected to the bottom of the transmission shaft, and a drill bit is fixedly connected to the bottom of the coring barrel. A cutting-off structure is arranged in the coring barrel and comprises a cavity and a first gear, a sliding block is slidably installed in the cavity, a rack is fixedly installed on the upper portion of the sliding block, a second gear is rotatably installed in the cavity, the second gear is connected with the rack in a meshed mode, and a double-face gear ring is rotatably installed at the upper position in the cavity. The double-face gear ring is connected with the second gear in a meshed mode, the double-face gear ring is connected with the first gear in a meshed mode, and a rotating shaft is fixedly installed at the top of the first gear. According to the geological drilling coring device disclosed by the utility model, a required core sample can be completely stored in the device.

The invention discloses a rock core sampling device for geological disaster investigation, and the invention relates to the field of sampling technology, including a composite mechanism. The rock core sampling device for geological disaster investigation is designed with a composite mechanism, a motor connected to a docking block, and a drill rod is inserted into the inner side of the docking block, so as to achieve drilling and sampling of rocks. During the drilling process, a mobile frame slides on the outer side of a sliding column to be lifted and lowered, thereby meeting the function of work requirements. A drill mechanism is arranged on the outer side of the drill rod, and during the drilling process, the drill mechanism is used to crush larger rocks, and at the same time, guide rock blocks into the inner side of the drill rod, so that samples can be taken out when the mobile frame is lifted later, so as to facilitate subsequent processing. After the sampling is completed, the samples are on the inner side of the drill rod, which makes it more cumbersome and difficult to take out. The electric push rod is used to press the pushing mechanism, so as to achieve the function of discharging the samples and keep the equipment running normally.

The invention relates to the technical field of geological exploration, and discloses a geological exploration drilling rig which comprises a mounting frame, a sleeve is mounted on the mounting frame, the sleeve is rotatably connected with a rotating column, two groups of symmetrically distributed sliding grooves are formed in the bottom of the rotating column, the sliding grooves are slidably connected with a sliding frame, and a drilling cylinder is arranged on the sliding frame. The drill barrel is connected with the drill bit through a connecting assembly, and a limiting hole is formed in the movable base. In order to completely take out a columnar rock core in the drill barrel, in the ascending process of the drill barrel, the drill bit is clamped at the position of the limiting hole, the drill bit is separated from the drill barrel, and the drill barrel continues to ascend under the cooperation of the feeding assembly and the connecting assembly; the separation assembly firstly relieves the limiting of the elastic assembly by the limiting assembly, and then pushes the elastic assembly to separate the two sliding frames, so that the two closed drill barrels can be separated, the columnar rock core in the drill barrels is exposed, and the columnar rock core in the drill barrels can be taken out.

The invention provides a control method and system for a power head of a coring drilling machine, and relates to the technical field of drilling machines. The control method for the power head of the coring drilling machine comprises the steps that historical data of the working process of the coring drilling machine serve as training samples, and a neural network model is constructed to obtain a mapping relation; based on historical data and the mapping relation, constructing a visual digital twinborn model; monitoring vibration information of the drill bit in real time; inputting the vibration information, the initial wear information of the drill bit before the coring and the stratum information of the stratum with the coring completed by the drill bit into a digital twinborn model; predicting the hardness of the stratum currently acted by the drill bit through a digital twinborn model; and the output torque of the power head is dynamically adjusted, and the feeding speed of the power head is dynamically adjusted. According to the control method, the vibration information of the drill bit can be analyzed in real time, the hardness information of the stratum on which the drill bit acts currently is predicted, and dynamic adjustment of the output torque and the feeding speed of the power head is achieved.

The utility model relates to the technical field, in particular to a cordless coring drilling tool for pressing a super-long horizontal hole, which is characterized in that a spearhead is arranged at the front end of a drill bit; the spearhead is embedded into the drill bit; the fishing spearhead is arranged on the spearhead seat; a positioning spring is arranged at the front end of the spearhead seat; a positioning pin is arranged in the positioning spring; the front end of the positioning spring is connected with a rolled elastic pin; the rear part of the spearhead seat is connected to the connecting pipe A; an inner recovery rod is arranged in the connecting pipe A and is connected with the spearhead seat; an elastic clamping plate is arranged at the tail part of the connecting pipe A; the rear part of the connecting pipe A is connected with a connecting pipe B; the rear end of the connecting pipe B is connected with a mandrel; the tail part of the mandrel is arranged in the sliding sleeve; the tail part of the sliding sleeve is connected to the core barrel; the core barrel is connected to the tail of the drill bit; according to the cordless coring drilling tool for the ultra-long horizontal hole, the problem that coring drilling efficiency of the ultra-long horizontal hole is low is solved, the cordless coring drilling tool for the ultra-long horizontal hole is researched, delivery and recovery of the inner pipe are completed through hydraulic driving, the mechanical inner pipe fishing technology is omitted, and the purposes of improving the coring drilling efficiency and simplifying the technological process are achieved. And a good foundation can be laid for constructing a novel process technology system for efficient coring drilling of the ultra-long horizontal hole.

According to the fixed-point coring drilling tool for directional drilling of the underground tunnel, the coring drill bit and the technology, the fixed-point coring drilling tool can be connected with directional drilling tools of different specifications through fixed rotating coring reducing, the coring drill rod is adopted as a rock core storage device, rock core drilling and cutting are achieved through the coring drill bit, and the drilling efficiency is improved. And under the protection of the fixed-rotation coring reducing device and the section clamping device, the rock core can be complete without leakage. In conventional directional drilling construction, previous directional drilling can be achieved, regional hole section coring can also be achieved, the needed coring drilling tool is small, the coring workload is small, and it can be effectively guaranteed that the coring hole section and the drilling track of directional drilling are controllable. According to the fixed-point coring process, a conventional tunnel directional drilling tool is used for implementing directional drilling operation, and then the fixed-point coring tool is combined for implementing coring operation, so that the rock core can be taken out during directional drilling construction, and the overall construction efficiency is improved.

The present invention belongs to the technical field of coring devices, and particularly relates to a moving pulley self-driven transporting film-forming liquid type coring device while drilling and forming a film. The coring device of the present invention includes a coring barrel, a central rod is sleeved inside the coring barrel, a coring barrel steel wire fixing mechanism is fixed at the upper end of the coring barrel, a central rod steel wire fixing mechanism is fixed at the upper end of the central rod, a movable piston is sleeved between the coring barrel and the central rod, a moving pulley is installed on the movable piston, a steel wire bypasses the moving pulley, one end of the steel wire is connected to the coring barrel steel wire fixing mechanism, and the other end of the steel wire is connected to the central rod steel wire fixing mechanism; the lower end of the fixed piston is connected with an A liquid and B liquid mixing mechanism, the A liquid is communicated with the A liquid and B liquid mixing mechanism from the self-isolation storage cavity through the movable piston, the A liquid self-transporting flow channel hose and the fixed piston, and the B liquid is communicated with the A liquid and B liquid mixing mechanism from the self-isolation storage cavity through the fixed piston. The present invention provides a piston self-isolation - moving pulley self-driven transporting film-forming liquid type coring device while drilling and forming a film.

The invention provides a tool applied to the field of petroleum drilling, and particularly relates to an electric control intelligent coring drill bit which comprises a power module and a cutting module, a limiting switch is arranged in the cutting module, the drill bit normally drills, a rock core passes through the interior of the drill bit and enters a coring barrel, and when the top of the rock core in the coring barrel triggers the limiting switch, the limiting switch is switched on. The MCU receives a coring completion signal, the electromagnetic valve is controlled to be opened through the MCU, high-pressure drilling fluid enters a turbine cavity through a mandrel hole, under the action of the high-pressure drilling fluid, the turbine rotates to generate motion and power, the motion and the power are transmitted to the rotating ring through the rotating disc and the rotating sleeve, the rotating ring rotates to push the connecting rod, the connecting rod pushes the evenly-distributed cutting knives, and therefore coring is completed. And the uniformly distributed cutting knives and the coring cylinder form a sealing cavity, the cut rock core is placed in the sealing cavity, and the cut rock core is taken out after pulling out of the drill. The intelligent degree of the drilling coring bit can be effectively improved, and the drilling coring efficiency and success rate are effectively improved.