CN115653568A - Small hole underground working condition monitoring tool while drilling and early warning system thereof - Google Patents
Small hole underground working condition monitoring tool while drilling and early warning system thereof Download PDFInfo
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Abstract
The invention discloses a slim hole downhole working condition monitoring tool while drilling, which comprises a drill collar body, wherein a battery short circuit, a main control circuit board assembly and a launching movement assembly are arranged on the drill collar body, a signal plate, a vibrating plate, a pressure sensor and a bit pressure and torque measuring strain gauge set are also arranged in the middle of the drill collar body, the main control circuit board assembly is connected with the battery short circuit, the launching movement assembly, the signal plate and the vibrating plate, the signal plate is connected with the pressure sensor and the bit pressure and torque measuring strain gauge set, and the battery short circuit is connected with an upper power plug. The small-hole underground working condition while drilling early warning system comprises a drill bit, a screw and a small-hole underground working condition while drilling monitoring tool, wherein the small-hole underground working condition while drilling monitoring tool is connected with a non-magnetic drill collar, a wireless receiving nipple, an elongated centralizer, an MWD main control probe, a battery, a vibration detection nipple, a double male connector and a rotary valve pulser are sequentially arranged in the non-magnetic drill collar, and the MWD main control probe is connected with the wireless receiving nipple, the battery, the vibration detection nipple and the rotary valve pulser.
Description
Technical Field
The invention relates to the technical field of drilling engineering in petroleum, coal mine and geological exploration, in particular to a monitoring tool for underground working conditions while drilling of a slim hole and an early warning system thereof.
Background
In the drilling process, engineering parameters such as underground drilling pressure, torque, annular pressure and the like have great guiding effect on ground constructors, and ground technicians can make correct judgment on underground working conditions conveniently. With the technology becoming more mature, measurement While Drilling (MWD) technology has been widely used in various drilling sites, in which a measuring nipple is placed near a drill bit or a drill string at the back during drilling to measure engineering parameters such as bit pressure and torque, and the engineering parameters are uploaded to the ground in real time and stored in a computer for further drilling construction. MWD technologies generally have two modes of operation: firstly, in the drilling process, measured engineering parameters (including bit pressure, torque, temperature and the like) are stored in a large-capacity storage chip, and the measured parameters are played back on the ground after the drill is taken out; secondly, uninterrupted data uploading is realized through a certain medium, and the main transmission mode comprises: the drilling fluid pulse, the thin wire, the electromagnetic wave and the like, the information near the drill bit can be timely and accurately reflected by the measurement while drilling, the underground information is uploaded to the ground under the condition of uninterrupted drilling, an explanation and decision are timely made by a ground software system (comprising a stratum structure model, a parameter explanation, a drilling design control and other main modules), the drilling process adjustment is timely made, the drilling safety is ensured, the drilling efficiency is improved, the measurement while drilling technology in foreign countries starts early, the technology is quite mature, the geological parameters and the engineering parameters close to the drill bit can be measured in real time, the current advanced technology applied to the drilling pressure measurement in the international world is a PWD (measurement while drilling) system, and the system can be closer to the drill bit to measure the drilling pressure data. Sperry-sun, 1994, developed a DDS drilling sensor joint to study downhole drill string movement and measure downhole three-way acceleration, weight-on-bit, and torque. The Solar175 pyrometry system of Sperry-sun company can reliably measure the orientation parameters and the gamma value under the high temperature of 175 ℃ and the high pressure environment of 150 MPa. The French geological service company and the French petroleum institute develop a system together, the system detects the rotating speed, torque and vibration of the underground drill bit and judges whether the drill bit works normally, and the driller takes corrective measures immediately after the harmful vibration according to the prompt of the drill floor display device.
The Security DBS develops an instrumented drill, an accelerometer, a strain gauge, a contact sensor and a temperature and conductivity measuring instrument are mounted on a drill bit, and the instrumented drill can detect the acceleration, the weight and the torque of the drill bit in all axial directions, the central track of the drill bit and the eccentricity of a borehole. The drill bit has been successfully field tested in france, italy, and the uk.
Halliburton company in the United states develops a measurement while drilling system capable of measuring various geological parameters, develops LWD on the basis of the measurement while drilling system, and can measure various measurement parameters such as resistivity, natural gamma rays and the like to lay a foundation for the development of a geosteering well technology.
Baker Hughes INTEQ and EIF oil and gas exploration and development companies in the United states developed an advanced real-time measurement system for downhole drilling parameters in 1999. The system comprises a downhole short section and a set of ground control device, and the used sensors comprise a weight-on-bit sensor, a torque-bending moment strain gauge, a magnetometer, an axial accelerometer, a radial accelerometer and pressure sensors inside and outside a drill rod.
The american national oil well company developed the BlackStream system, a new and improved tool in the Enhanced Messaging System (EMS) tool family, streamhru tool for well data acquisition, with tool sizes of both 6.75 inches and 8.25 inches. Logging downhole tool weight, downhole torque, biaxial tortuosity, rotation angle, triaxial vibration, annular pressure, internal pressure and temperature, data logging helps to mitigate and optimize operational processes such as center of gravity shifting, pipe string creep and wellbore tortuosity.
The measurement while drilling technology starts late at home, beginning in 2015, beijing Liuhe Wei science and technology Limited develops the development of engineering while drilling parameter measurement systems, and develops system products, such as LHE8610 series formation pressure measurement while drilling can realize two measurement modes to measure underground formation pressure and formation mobility parameters, the measurement data can be uploaded in real time, the tool can resist 175 ℃ and withstand 150MPa, can detect annular pressure in real time, and can know underground pressure information in time; the LHE6150 series while-drilling engineering parameter measuring system can measure a plurality of parameters such as the rotating speed, the torque and the like of a drilling tool, the measured parameters are displayed on the ground in real time, the measuring drill collar is in wireless communication with the MWD, the while-drilling type working mode and the storage type working mode can be mutually converted, the storage type continuous working time is more than 200 hours, the temperature resistance is 175 ℃, the pressure resistance is 140MPa, and the length of an instrument is 1100mm.
The pressure measuring instrument while drilling developed by Beijing Zhongtian Qiming Petroleum technology Limited company can continuously measure the internal pressure and the annular pressure of a downhole drilling tool, and the outer diameter of the instrument comprises two types of 4-3/4 'and 6-3/4'. The Daqing drilling engineering technology research institute has completed storage type downhole pressure and temperature measuring instruments in 2004, but has not realized the function of uploading data while drilling. The DQ-I type while-drilling annular pressure measuring instrument developed in 2008 adopts an overseas pressure gauge, has high precision, high price and higher maintenance and calibration cost. In 2013, the novel annular pressure measuring instrument while drilling is developed, field tests are carried out, a good effect is achieved, and the function of uploading data while drilling is achieved.
In 2016, zhao of the university of beijing information technology has researched the feasibility of measuring the drilling pressure by using a strain gauge aiming at the problem that the current near drill bit in the well cannot be directly measured, and a set of strain gauge layout scheme and circuit output formula are provided.
In 2018, a dynamic parameter measurement system while drilling is developed by the research institute of drilling engineering technology of petroleum group in China, and can realize measurement of important engineering parameters such as bit pressure, torque, annular water hole pressure, temperature, rotating speed and the like in a drilling operation engineering, record the parameters in an underground memory and transmit the parameters to a ground system. After the well is put down for field test, the parameters of drilling pressure, torque, annular pressure and water eye pressure are measured while drilling from the well depth of 800m to the well depth of 2000m, the accumulated footage is 1200m, and the tool for measuring the parameters of the underground engineering while drilling works normally.
In 2021, drilling engineering technology research institute of Daqing drilling engineering company, wanghaiqi developed underground engineering parameter measurement while drilling system, the system takes MC9S08DZ60 single chip microcomputer as core, utilizes reliability technology to complete the storage type measurement system of parameters such as instrument drilling pressure, torque, rotating speed, vibration, temperature and the like near the drill bit, adopts data array type storage mode, four Flash relay storage data, the capacity is expanded to 256Mbit, and the storage time is over 200h.
Retrieving domestic patent, patent CN 102828747B provides a petroleum drilling real-time monitoring system, including a drilling fluid performance monitoring instrument, a geological logging monitoring instrument and a drilling engineering parameter monitoring instrument, wherein sensors are arranged on the instruments, the sensors transmit detection signals to computer processing equipment through a wireless transmitting and receiving system, and the detection signals are processed by computer software and then converted into charts to be displayed on a display in real time. A drilling engineering parameter monitoring system disclosed in patent CN 105298466A. Patent CN 207144931U a pressure sensitive formation controlled pressure well drilling monitoring system relates to the borehole pressure monitoring field of oil exploration development well drilling, specifically is a pressure sensitive formation controlled pressure well drilling monitoring system. CN 108801519A is a torque sensor while drilling and a torque measurement method, and relates to a torque sensor and a torque measurement method.
As can be seen from the above literature search, the current measurement while drilling tool mainly has two problems: firstly, the drilling engineering parameters measured by the tool are few, and most measuring tools measure no more than 3; secondly, the existing tool takes a conventional well hole as a suitable object, namely, the measurement tool has a large size, and the performance index of the tool is easy to achieve. None of these tools are suitable for drilling slim hole (no larger than Φ 118) wells. The drilling friction of the slim hole drilling is large, the torque of the drilling tool is large, the drilling tool is easy to cause the accidents of bending and breaking of the drilling tool, and the problems of small annular space gap of the slim hole, large annular space pressure consumption, poor rock carrying effect and the like exist, so that the accidents and complex working conditions encountered in the slim hole drilling process are more and more, in the drilling accidents, a part of the accidents are caused by misjudgment of underground working conditions, and meanwhile, the reasons of inaccurate measurement or untimely measurement of engineering parameters such as underground drilling pressure, torque, annular space pressure and the like exist, so that the early warning on the drilling working conditions cannot be accurately carried out, and the drilling accidents are caused.
The diameter of the engineering parameter measuring system in the existing market is more than 172mm, and the system cannot be used in a slim hole, so that a monitoring tool and an early warning system for the underground working condition of the slim hole while drilling are urgently needed to solve the problem.
Disclosure of Invention
The invention aims to solve the problems that the use and the measurement of a slim hole cannot be satisfied and the number of parameters is small, and provides a slim hole underground working condition monitoring tool while drilling and an early warning system thereof, which are used for measuring and recording parameters such as bit pressure, torque, internal and external annular pressure, temperature, rotating speed and vibration quantity of a drilling tool. Measured data are transmitted to a receiving short section corresponding to the MWD in a wireless short transmission mode, the MWD main control conducts polling reading on the measured data received by the receiving short section, and controls the rotary valve pulser to send a corresponding sequence, and uploading of the measured data is achieved. The surface software can decode the values of the drilling pressure, the torque, the inner annulus, the outer annulus, the temperature, the rotating speed, the transverse vibration and the longitudinal vibration in real time and can produce a curve graph, and the curve graph changes along with the well depth.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a slim hole is along with boring operating mode monitoring instrument in pit, includes the drill collar body, be provided with battery short circuit, main control circuit board subassembly and transmission core subassembly on the drill collar body, drill collar body middle part still is provided with signal board, vibration board, pressure sensor and weight-on-bit and torque measurement foil gage group, main control circuit board subassembly links to each other with battery short circuit, transmission core subassembly, signal board and vibration board, the signal board links to each other with pressure sensor and weight-on-bit and torque measurement foil gage group, the battery short circuit links to each other with last electric plug.
Preferably, the drill collar body is made of a P550 material, the hardness is HB370-430, and the shape of the button is as follows: NC31, outer diameter: 105mm.
Preferably, one end of the drill collar body is provided with a battery short-circuit groove for installing a battery short circuit, a battery cover plate is arranged above the battery short circuit, and the battery cover plate is connected with the drill collar body.
Preferably, the upper side and the lower side of the other end of the drill collar body are respectively provided with a circuit groove for mounting a main control circuit board assembly and a transmitter core groove for mounting a transmitter core assembly, a circuit cover plate is arranged above the main control circuit board assembly, a transmitter core cover plate is arranged below the transmitter core assembly, and the circuit cover plate and the transmitter core cover plate are connected with the drill collar body.
Preferably, a rotating speed sensor and a temperature sensor are arranged in the main control circuit board assembly.
Preferably, the transmitter core assembly comprises a transmitter coil and a communication circuit.
Preferably, an inner annular gland and an outer annular air gland are respectively arranged on the inner side and the outer side of the pressure sensor, and are connected with the drill collar body.
Preferably, the drill collar body is adhered with the strain gauge group for measuring the drilling pressure and the torque at an angle of 90 degrees along the circumferential direction of the drill collar.
Preferably, the strain gauge set comprises a high-precision shearing double-feather strain gauge and a high-precision single-feather strain gauge.
The utility model provides a slim hole is along with boring operating mode early warning system in pit, is including drill bit, screw rod and the slim hole that links to each other in proper order along with boring down operating mode monitoring tool, the slim hole is along with boring down operating mode monitoring tool and is continuous with no magnetic drill collar, no magnetic drill collar is inside to be provided with wireless receiving nipple joint, extension centralizer, MWD master control exploring tube, battery, vibration detection nipple joint, two public joints and rotary valve pulser in proper order, MWD master control exploring tube links to each other with wireless receiving nipple joint, battery, vibration detection nipple joint and rotary valve pulser.
Preferably, the non-magnetic drill collar is connected with the suspended drill collar, and the double male joint and the rotary valve pulser are sequentially arranged in the suspended drill collar.
The technical scheme has the following beneficial effects:
the monitor and early warning system for underground working condition of small well while drilling has the features of small size, high strength, high pressure resistance, high temperature, etc. and thus, the small well drilling tool has small size, low rated tensile strength and delayed drilling perception. By accurately monitoring engineering parameters such as drilling pressure and torque at the bottom of a well in real time, a pair of eyes is added for a driller, and safe and rapid drilling of a slim hole is realized.
The small borehole drilling downhole working condition monitoring tool is used for measuring and recording parameters such as bit pressure, torque, annular pressure inside and outside the drilling tool, temperature, rotating speed, vibration quantity and the like of the drilling tool. Data measured by the small-hole underground working condition monitoring while drilling tool are transmitted to the wireless receiving short section through the transmitting core assembly, the wireless receiving short section transmits the data to the MWD main control probe, the MWD main control probe conducts polling reading on the measured data received by the wireless receiving short section, and controls the rotary valve pulser to send a corresponding sequence, so that the measured data are uploaded. The surface software can decode the values of the drilling pressure, the torque, the inner annulus, the outer annulus, the temperature, the rotating speed, the transverse vibration and the longitudinal vibration in real time and can output a curve graph, and the curve graph changes along with the well depth.
Drawings
FIG. 1: a complete machine connection diagram of the slim hole well-drilling underground working condition early warning system;
FIG. 2 is a schematic diagram: the structure schematic diagram of the tool for monitoring the underground working condition of the slim hole while drilling;
FIG. 3: isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic view of: is a cross-sectional view B-B of FIG. 2;
FIG. 5: the mounting position diagram of the gauge set for measuring the bit pressure and the torque is shown;
FIG. 6: the schematic diagram of the connection relationship among all parts in the slim hole well-drilling underground working condition monitoring tool provided by the embodiment of the invention is shown;
FIG. 7 is a schematic view of: the schematic diagram of the connection relation among all parts in the slim hole well-drilling underground working condition early warning system provided by the embodiment of the invention is shown;
wherein: 1. a drill bit; 2. a screw; 3. a tool for monitoring the underground working condition of the slim hole while drilling; 4. a wireless receiving short section; 5. lengthening the centralizer; 6. MWD master control probe; 7. a battery; 8. a vibration detection short section; 9. a double male connector; 10. rotating a valve pulser; 11. hanging a drill collar; 12. a non-magnetic drill collar; 13. a drill collar body; 14. a battery cover plate; 15. a battery nipple; 16. a circuit cover plate; 17. a master control circuit board assembly; 18. a transmitter core cover plate; 19. a transmitter core assembly; 20. a strain gauge gland; 21. a signal plate; 22. electrifying a plug gland; 23. electrifying a plug; 24. a vibrating plate; 25. an outer annular gland; 26. a pressure sensor; 27. an inner annular gland; 28. a high-precision single-feather strain gauge; 29. and (5) high-precision shearing of the double-feather strain gauge.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
As shown in fig. 2-6, a small hole downhole working condition monitoring tool 3 while drilling comprises a drill collar body 13, wherein a battery 7 short circuit, a main control circuit board assembly 17 and a transmitting core assembly 19 are arranged on the drill collar body 13, a signal plate 21, a vibrating plate 24, a pressure sensor 26 and a bit pressure and torque measuring strain gauge set are further arranged in the middle of the drill collar body 13, the main control circuit board assembly 17 is connected with the battery 7 short circuit, the transmitting core assembly 19, the signal plate 21 and the vibrating plate 24, the signal plate 21 is connected with the pressure sensor 26 and the bit pressure and torque measuring strain gauge set, the battery 7 short circuit is connected with an upper power plug 23, the upper power plug 23 is arranged on the drill collar body 13, an upper power plug 23 cover plate is arranged at the upper end of the upper power plug 23, and the upper power plug 23 cover plate is connected with the drill collar body 13.
Wherein, the drill collar body 13 is made of P550 material, the hardness is HB370-430, and the buckling type is as follows: NC31, outer diameter: 105mm.
Wherein, drill collar body 13 one end is provided with the battery 7 short circuit groove that is used for installing the battery 7 short circuit, battery 7 short circuit top is provided with battery apron 14, battery apron 14 links to each other with drill collar body 13. The battery 7 short circuit has two sets ofly, and two sets of battery 7 short circuits are parallelly connected, and the voltage of battery 7 short circuit is 18.2V, and the electric quantity is 1.6Ah, the battery 7 short circuit is main control circuit board subassembly 17, transmission core subassembly 19, signal board 21, vibration board 24, pressure sensor 26 and weight on bit and torque measurement foil gage group power supply.
The upper side and the lower side of the other end of the drill collar body 13 are respectively provided with a circuit groove for mounting a main control circuit board assembly 17 and a transmitter core groove for mounting a transmitter core assembly 19, a circuit cover plate 16 is arranged above the main control circuit board assembly 17, a transmitter core cover plate 18 is arranged below the transmitter core assembly 19, and the circuit cover plate 16 and the transmitter core cover plate 18 are connected with the drill collar body 13. And the battery cover plate 14, the circuit cover plate 16 and the transmitter core cover plate 18 are all provided with O-shaped ring seals, and the O-shaped ring seals adopt inlet fluororubber seal rings for improving the pressure resistance of the system.
Wherein, be provided with speed sensor and temperature sensor in the main control circuit board subassembly 17. The temperature sensor adopts high temperature resistant, the good high temperature current source of linearity, utilizes the high temperature current source to measure actual temperature in the pit, along with the linear increase of temperature rising electric current, the cooperation sampling resistance converts the voltage signal change, and main control circuit board assembly 17 gathers the conversion to voltage signal, the output corresponding temperature value. The rotation speed sensor adopts a gyroscope and is used for monitoring the rotation speed of the underground drilling tool, the underground drilling speed is increased along with the increase of the rotation speed of the underground drilling tool to form an exponential relation, the abrasion speed of a cone is also accelerated, an engineer carries out corresponding adjustment on drilling construction according to the drilling speed and other related engineering parameters, and the maximum mechanical drilling speed is ensured to be reached on the premise of ensuring the service life of underground equipment.
The transmitter core assembly 19 includes a transmitting coil and a communication circuit, and uploads the measured parameter by using an electromagnetic coupling communication technology.
The vibration plate 24 performs vibration detection, the vibration detection realizes measurement by collecting acceleration change, underground vibration quantity is monitored, bit pressure can be adjusted in time according to underground vibration conditions, and fatigue failure of drilling tools and underground instruments caused by overlarge vibration quantity is avoided.
The pressure sensor 26 is used for measuring the pressure of the inner annulus and the outer annulus of the drilling fluid, the pressure sensor 26 adopts a sputtering film pressure sensor 26 which is high in sensitivity and small in temperature influence, the pressure sensor 26 outputs differential signals, the differential signals are processed by a processing circuit and then transmitted to the main control circuit board assembly 17, and the main control circuit board realizes signal conversion and outputs the pressure value of the inner annulus and the outer annulus of the drilling fluid.
An inner annular gland 27 and an outer annular gland 25 are respectively arranged on the inner side and the outer side of the pressure sensor 26, and the inner annular gland 27 and the outer annular gland 25 are both connected with the drill collar body 13.
Wherein, the drill collar body 13 mutually forms 90 degrees along the circumference of the drill collar and is pasted with a gauge set for measuring the drilling pressure and the torque.
Wherein the strain gauge group comprises a high-precision shearing double-feather strain gauge 29 and a high-precision single-feather strain gauge 28. The high-precision single-feather strain gauge 28 is used for measuring the bit pressure, and the high-precision shearing double-feather strain gauge 29 is used for measuring the torque; the drill pressure and torque measurement are respectively formed by 8 strain gauges, the drill collar is deformed under stress, the resistance value of the strain gauge changes accordingly, the bridge circuit generates a differential pressure signal, the differential pressure signal is amplified and then transmitted to the main control circuit board assembly 17 for processing, and finally the corresponding drill pressure value and torque value are output. By monitoring the underground bit pressure, the force applied to the drill bit 1 can be accurately determined, and the bit pressure is adjusted to improve the drilling speed. Drilling tool equipment can be properly adjusted by monitoring the downhole torque, and the occurrence of drilling tool fracture faults is avoided. Meanwhile, the abrasion condition of the drill bit 1 can be visually judged through torque change, drilling tool equipment can be properly adjusted through monitoring underground torque, and the drilling tool fracture fault is avoided.
As shown in fig. 1 and 7, the slim hole downhole condition while drilling early warning system comprises a drill bit 1, a screw 2 and a slim hole downhole condition while drilling monitoring tool 3, wherein the slim hole downhole condition while drilling monitoring tool 3 is connected with a non-magnetic drill collar 12, and the non-magnetic drill collar 12 is internally and sequentially provided with a wireless receiving nipple 4, an lengthened centralizer 5, an MWD main control probe 6, a battery 7, a vibration detection nipple 8 (for detecting the overall vibration characteristic of the slim hole downhole condition while drilling early warning system), a double male joint 9 (for further enhancing the anti-deviation effect of the slim hole downhole condition while drilling early warning system) and a rotary valve pulser 10. The drill bit 1 links to each other with screw rod 2 one end, the screw rod 2 other end links to each other with slim hole is along with boring down operating mode monitoring tool 3, the measurement parameter (including data such as real temperature in the pit, drilling tool rotational speed, acceleration, drilling fluid internal and external annular pressure, weight on bit, moment of torsion) of slim hole is received through wireless communication's mode to wireless reception nipple joint 4 one end, the wireless reception nipple joint 4 other end links to each other with extension centralizer 5, the other end of extension centralizer 5 links to each other with main control exploring tube 6, the main control exploring tube 6 other end of MWD links to each other with battery 7, vibration detection nipple joint 8, two public joint 9, rotary valve pulser 10 are connected gradually to the other end of battery 7. The electronic component adopts a high-temperature device with the temperature of more than 150 ℃ and is used for ensuring the high-temperature stability.
Preferably, the non-magnetic drill collar 12 is connected with the suspended drill collar 11, and the double male joint 9 and the rotary valve pulser 10 are sequentially arranged in the suspended drill collar 11.
The small borehole downhole working condition monitoring tool 3 is used for measuring and recording parameters such as bit pressure, torque, annular pressure inside and outside the drilling tool, temperature, rotating speed, vibration quantity and the like. Data measured by the slim hole downhole working condition monitoring tool 3 while drilling are transmitted to the wireless receiving short section 4 through the transmitting core assembly 19, the wireless receiving short section transmits the data to the MWD main control probe 6, the MWD main control probe 6 conducts polling reading on the measured data received by the wireless receiving short section 4, and controls the rotary valve pulser 10 to send a corresponding sequence, so that the measured data is uploaded. The surface software can decode the values of the drilling pressure, the torque, the inner annulus, the outer annulus, the temperature, the rotating speed, the transverse vibration and the longitudinal vibration in real time and can output a curve graph, and the curve graph changes along with the well depth.
The ground software has an overrun early warning function, a parameter threshold triggered by alarm can be set according to actual conditions on site, the alarm is synchronously set into the MWD main control probing pipe 6 in a consistency mode before entering a well, when a measured value of an engineering parameter exceeds the threshold, the MWD main control probing pipe 6 switches a sending sequence to an alarm sequence to upload data, and risk prompt is carried out on the ground by judging the alarm sequence data.
The surface software can read the stored data of the slim hole underground working condition monitoring while drilling tool 3 through the interface and the memory is cleared, and the read stored data can be exported. Meanwhile, the precision test can be carried out on the monitoring tool 3 for the underground working condition while drilling of the slim hole. The small-hole underground working condition while drilling monitoring tool 3 and the early warning system have the characteristics of small size, high strength, strong pressure resistance, high temperature and the like, so that the small-hole underground working condition while drilling has small size, low rated tensile (torsional) strength and driller perception hysteresis in the small-hole drilling in the petroleum drilling engineering construction. By accurately monitoring engineering parameters such as drilling pressure and torque at the bottom of a well in real time, a pair of eyes is added for a driller, and safe and rapid drilling of a slim hole is realized.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. The tool is characterized by comprising a drill collar body, wherein a battery short circuit, a main control circuit board assembly and a transmitting core assembly are arranged on the drill collar body, a signal plate, a vibrating plate, a pressure sensor and a bit pressure and torque measurement strain gauge set are further arranged in the middle of the drill collar body, the main control circuit board assembly is connected with the battery short circuit, the transmitting core assembly, the signal plate and the vibrating plate, the signal plate is connected with the pressure sensor and the bit pressure and torque measurement strain gauge set, and the battery short circuit is connected with an upper electric plug.
2. The tool for monitoring the downhole condition while drilling of the slim hole as claimed in claim 1, wherein: the drill collar body is made of a P550 material, and has an outer diameter: 105mm.
3. The tool for monitoring the downhole condition while drilling of the slim hole as claimed in claim 2, wherein: one end of the drill collar body is provided with a battery short-circuit groove for installing a battery short circuit, a battery cover plate is arranged above the battery short circuit, and the battery cover plate is connected with the drill collar body.
4. The tool for monitoring the downhole condition while drilling of the slim hole as claimed in claim 3, wherein: the drill collar comprises a drill collar body, and is characterized in that the upper side and the lower side of the other end of the drill collar body are respectively provided with a circuit groove for mounting a main control circuit board assembly and a transmitter core groove for mounting a transmitter core assembly, a circuit cover plate is arranged above the main control circuit board assembly, a transmitter core cover plate is arranged below the transmitter core assembly, and the circuit cover plate and the transmitter core cover plate are connected with the drill collar body.
5. The tool for monitoring the downhole conditions while drilling of the slim hole as claimed in claim 4, wherein: and a rotating speed sensor and a temperature sensor are arranged in the main control circuit board assembly.
6. The tool for monitoring the downhole condition while drilling of the slim hole as claimed in claim 5, wherein: the transmitter core assembly includes a transmitter coil and a communication circuit.
7. The tool for monitoring the downhole conditions while drilling of the slim hole as claimed in claim 6, wherein: an inner annular gland and an outer annular air gland are respectively arranged on the inner side and the outer side of the pressure sensor, and are connected with the drill collar body.
8. The tool for monitoring the downhole conditions while drilling of the slim hole as claimed in claim 7, wherein: the drill collar body is adhered with the strain gauge groups for measuring the drilling pressure and the torque at an angle of 90 degrees along the circumferential direction of the drill collar.
9. The utility model provides a slim hole is along with boring operating mode early warning system in pit which characterized in that: the underground working condition monitoring tool comprises a drill bit, a screw and a slim hole connected in sequence, wherein the slim hole underground working condition monitoring tool is connected with a non-magnetic drill collar, a wireless receiving nipple, an extended centralizer, an MWD main control probe, a battery, a vibration detection nipple, a double male connector and a rotary valve pulser are sequentially arranged in the non-magnetic drill collar, and the MWD main control probe is connected with the wireless receiving nipple, the battery, the vibration detection nipple and the rotary valve pulser.
10. The slim hole while drilling downhole condition early warning system of claim 9, wherein: the non-magnetic drill collar is connected with the suspended drill collar, and the double male connector and the rotary valve pulser are sequentially arranged in the suspended drill collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211365532.6A CN115653568A (en) | 2022-11-03 | 2022-11-03 | Small hole underground working condition monitoring tool while drilling and early warning system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211365532.6A CN115653568A (en) | 2022-11-03 | 2022-11-03 | Small hole underground working condition monitoring tool while drilling and early warning system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115653568A true CN115653568A (en) | 2023-01-31 |
Family
ID=84995559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211365532.6A Pending CN115653568A (en) | 2022-11-03 | 2022-11-03 | Small hole underground working condition monitoring tool while drilling and early warning system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115653568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117449765A (en) * | 2023-12-01 | 2024-01-26 | 中国地质科学院探矿工艺研究所 | Multi-source real-time integrated drilling, recording and measuring equipment for horizontal rope drill rod and data sensing method |
-
2022
- 2022-11-03 CN CN202211365532.6A patent/CN115653568A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117449765A (en) * | 2023-12-01 | 2024-01-26 | 中国地质科学院探矿工艺研究所 | Multi-source real-time integrated drilling, recording and measuring equipment for horizontal rope drill rod and data sensing method |
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