CN106285631B - Sensor built-in near-bit parameter measuring device and application method thereof - Google Patents
Sensor built-in near-bit parameter measuring device and application method thereof Download PDFInfo
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- CN106285631B CN106285631B CN201610860354.2A CN201610860354A CN106285631B CN 106285631 B CN106285631 B CN 106285631B CN 201610860354 A CN201610860354 A CN 201610860354A CN 106285631 B CN106285631 B CN 106285631B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims description 72
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- 238000011326 mechanical measurement Methods 0.000 claims 3
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
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Abstract
The invention relates to the technical field of drilling parameter measuring devices and using methods thereof, in particular to a sensor built-in near-bit parameter measuring device and a using method thereof. The sensor built-in near-bit parameter measuring device and the application method thereof can monitor the underground working condition in real time, analyze and judge the underground working condition according to the real-time monitoring data so as to adjust the corresponding drilling parameters, thereby reducing the occurrence of complex well conditions such as drill sticking, drilling tool breaking, jump holding, early life shortening of the drill bit and the like.
Description
Technical Field
The invention relates to the technical field of drilling parameter measuring devices and using methods thereof, in particular to a sensor built-in near-bit parameter measuring device and a using method thereof.
Background
The complex well conditions such as stuck drilling, broken drilling tool, jump, advanced life shortening of the drill bit and the like are unavoidable in the well drilling process, at present, the well drilling condition is simply monitored by comprehensively logging on the ground, the occurrence of underground complex conditions is reduced through ground presumption analysis, and the effect is not obvious. At present, a measuring tool for monitoring the drilling state in real time is lacking, and the downhole working condition is analyzed and judged through the real-time measurement of the tool on the downhole working condition so as to achieve the purpose of reducing the occurrence of the downhole complex well condition.
Disclosure of Invention
The invention provides a sensor built-in near-bit parameter measuring device and a using method thereof, which overcome the defects of the prior art and can effectively solve the problem that the drilling state cannot be monitored in real time in the existing underground working condition monitoring process.
One of the technical schemes of the invention is realized by the following measures: the sensor built-in near bit parameter measuring device comprises a body and an outer cylinder, wherein the inner side of the lower part of the outer cylinder is fixedly installed with the outer side of the middle part of the body in a sealing way, the upper end of the body is fixedly provided with a runner conversion body sleeved in the outer cylinder, the upper end of the runner conversion body is fixedly installed with a conversion joint sleeved in the outer cylinder in a sealing way, the outer side of the body corresponding to the lower end of the outer cylinder is provided with at least one measuring groove, the mechanical measuring device is fixedly installed in the measuring groove, the outer side of the body above the measuring groove is provided with an annular groove, the annular groove is fixedly provided with a signal processing circuit module, the body is respectively fixedly provided with an internal pressure sensor and an external pressure sensor in a sealing way, the body is provided with an internal pressure measuring channel communicated with the inner side of the body, the internal pressure sensor measures the internal pressure of a drilling tool through the internal pressure measuring channel, an external pressure measuring channel communicated with the outer side of the outer cylinder is arranged on the body, an external pressure sensor is used for measuring annular pressure through the external pressure measuring channel, a signal output end of the mechanical measuring device is electrically connected with a first signal input end of the signal processing circuit module, a signal output end of the internal pressure sensor is electrically connected with a second signal input end of the signal processing circuit module, a signal output end of the external pressure sensor is electrically connected with a third signal input end of the signal processing circuit module, a cavity communicated with the inner side of the body is arranged between the right side of the outside of the runner conversion body and the inner side of the outer cylinder, a space is reserved between the outer side of the conversion joint and the inner side of the outer cylinder, a second wire passing channel communicated with the annular groove is arranged in the runner conversion body, and a rotary plug is fixedly arranged in the upper end of the second wire passing channel in a sealing mode.
The following are further optimizations and/or improvements to one of the above-described inventive solutions:
the body comprises a sensor mounting nipple and a lower body, the inner side of the lower part of the outer cylinder is fixedly mounted with the outer side of the upper part of the lower body in a sealing way, the upper end of the lower body is fixedly mounted with a sensor mounting nipple sleeved in the outer cylinder in a sealing way, a flow passage conversion body is fixedly mounted at the upper end of the sensor mounting nipple, at least one measuring groove is arranged on the outer side of the lower body corresponding to the lower end of the outer cylinder, an annular groove is arranged on the outer side of the lower body between the measuring groove and the sensor mounting nipple, a signal processing circuit module is fixedly mounted in the annular groove, first wire passing channels which are communicated with the measuring groove and the annular groove are arranged on the lower body between the measuring groove and the annular groove, the number of the first wire passing channels is the same as that of the measuring grooves, the outer side of the lower part of the sensor mounting nipple is respectively provided with a connecting groove, an inner mounting groove and an outer mounting groove which are mutually isolated along the circumference, an inner pressure sensor capable of measuring the internal pressure of the drilling tool is fixed in the inner mounting groove, an outer pressure sensor capable of measuring the annular pressure is fixed in the outer mounting groove, a first wiring plug is fixedly arranged on a body between the annular groove and the connecting groove, a second wiring plug is fixedly arranged on the body between the annular groove and the inner mounting groove, a cable between the inner pressure sensor and the signal processing circuit module is connected through the second wiring plug, a third wiring plug is fixedly arranged on the lower body between the annular groove and the outer mounting groove, a cable between the outer pressure sensor and the signal processing circuit module is connected through the third wiring plug, an inner pressure measuring channel which enables the inner mounting groove to be communicated with the inner side of the lower body is arranged at the upper part of the sensor mounting nipple, an external pressure measuring channel communicated with the external mounting groove is arranged at the upper part of the sensor mounting pup joint, an external pressure radial through hole communicated with the external pressure measuring channel is arranged on the outer barrel, a wiring through hole communicated with the connecting groove and the second wiring channel is arranged on the sensor mounting pup joint between the second wiring channel and the connecting groove, a connecting joint is fixedly arranged in the second wiring channel and the wiring through hole in a sealing way, and a cable between the signal processing circuit module and the connecting joint is connected through a first wiring plug; or/and the mechanical measuring device is a strain gauge.
The signal processing circuit module comprises a circuit board, wherein a fluxgate, a triaxial acceleration sensor, a temperature sensitive element, a filtering amplifying circuit module, a data processing transmitting circuit module and a power module are fixed on the circuit board, the power output end of the power module is respectively and electrically connected with the fluxgate, the triaxial acceleration sensor, the temperature sensitive element, the filtering amplifying circuit module, the data processing transmitting circuit module, a mechanical measuring device, an internal pressure sensor and an external pressure sensor, the signal output end of the mechanical measuring device is electrically connected with the first signal input end of the filtering amplifying circuit module, the signal output end of the internal pressure sensor is electrically connected with the second signal input end of the filtering amplifying circuit module, the signal output end of the external pressure sensor is electrically connected with the third signal input end of the filtering amplifying circuit module, the signal output end of the fluxgate is electrically connected with the fourth signal input end of the filtering amplifying circuit module, the signal output end of the three-axis acceleration sensor is electrically connected with the fifth signal input end of the filtering amplifying circuit module, the signal output end of the element is electrically connected with the sixth signal input end of the temperature sensitive filtering amplifying circuit module, and the signal output end of the transmitting circuit module is electrically connected with the data processing amplifying circuit module.
The first wire passing channel comprises an axial long hole and a connecting radial through hole communicated with the axial long hole, the axial long hole is arranged on the lower body, the axial long hole is communicated with the annular groove, the connecting radial through hole is arranged between the measuring groove and the axial long hole, a plug is fixedly arranged at the lower end of the axial long hole in a sealing way, a multi-core sealing plug is fixedly arranged in the connecting radial through hole in a sealing way, and a cable between the mechanical measuring device and the signal processing circuit module is connected through the multi-core sealing plug.
The inner side of the upper end of the lower body is hermetically installed with the outer side of the lower part of the sensor installation nipple, and the upper end of the lower body is fixedly installed with the sensor installation nipple through at least one connecting bolt; or/and the upper part of the sensor mounting pup joint is fixedly mounted with the lower part of the runner conversion body through at least one fastening bolt; or/and the upper end of the second wire passing channel is in a step shape with a wide upper part and a narrow lower part, the rotary plug is fixedly arranged in the step-shaped second wire passing channel in a sealing way, the upper part of the rotary plug is fixedly provided with a gland ring through a fastening nail, and the bottom end of the gland ring is tightly propped against the top end of the rotary plug.
The outer cylinder corresponding to the inside and the outside of the connecting groove is provided with a test radial through hole communicated with the connecting groove, and a sealing plug and a fixing plug are fixedly arranged in the test radial through hole from inside to outside; or/and the first wiring plug is a multi-core sealing plug; or/and the second wiring plug is a multi-core sealing plug; or/and the third wiring plug is a multi-core sealing plug; or/and, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder below the measuring groove and the outer side of the lower body, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder between the annular groove and the measuring groove and the outer side of the body, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder between the connecting groove and the annular groove and the outer side of the lower body, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder above the connecting groove and the outer side of the sensor mounting nipple, at least one sealing ring is fixedly arranged between the outer side of the lower end of the flow passage conversion body and the inner side of the lower part of the conversion joint, and at least one sealing ring is fixedly arranged between the outer side of the upper part of the flow passage conversion body and the inner side of the lower part of the conversion joint; or/and the inner side of the lower part of the outer cylinder is fixedly arranged with the outer side of the upper part of the lower body through threads, and the outer side of the upper part of the runner conversion body is arranged with the inner side of the lower part of the conversion joint through threads; or/and, the upper part of the outer cylinder is provided with internal threads or external threads, and the lower part of the lower body is provided with internal threads or external threads.
The second technical scheme of the invention is realized by the following measures: a method for using the sensor-built-in near-bit parameter measuring device according to one of the technical schemes, which comprises the following steps: the method comprises the steps of fixedly mounting a rotary plug and a pulse generator together, fixedly mounting a pulse generator and a drill string together, fixedly mounting a body and a drill bit together, then, lowering a sensor built-in near-drill bit parameter measuring device into a well along with a drilling tool, after the sensor built-in near-drill bit parameter measuring device is lowered into the well, measuring the drilling pressure and the bending moment and torque of the drill string by a mechanical measuring device, measuring the internal pressure in the drilling tool by an internal pressure sensor, measuring the annular pressure by an external pressure sensor, measuring the drilling speed of the drill string by a fluxgate, measuring the vibration value of the drill bit by a triaxial acceleration sensor, measuring the temperature in the well by a temperature sensitive element, transmitting the measured bending moment and torque data of the drill string to a filter amplifying circuit module by the mechanical measuring device, transmitting the measured annular pressure data to the filter amplifying circuit module by the external pressure sensor, transmitting the measured annular pressure data to the filter amplifying circuit module by the magnetic fluxgate, transmitting the measured vibration value data to the filter amplifying circuit module by the triaxial acceleration sensor, transmitting the measured vibration value data to the filter amplifying circuit module, transmitting the temperature data to the temperature sensitive element to the filter amplifying circuit module, and receiving the pulse signal after the temperature sensor receives the pulse signal, and transmitting the pulse signal to the filter amplifying module and processing the pulse signal to the filter amplifying module.
The sensor built-in near-bit parameter measuring device and the application method thereof can monitor the underground working condition in real time, analyze and judge the underground working condition according to the real-time monitoring data so as to adjust the corresponding drilling parameters, thereby reducing the occurrence of complex well conditions such as drill sticking, drilling tool breaking, jump holding, early life shortening of the drill bit and the like.
Drawings
Fig. 1 is a schematic view of a front sectional structure of embodiment 1.
FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 in the direction A-A.
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1 in the direction B-B.
FIG. 4 is a schematic view of the cross-sectional structure of FIG. 1 taken along the direction C-C.
FIG. 5 is a schematic view of the structure of FIG. 1 in section in the direction D-D.
FIG. 6 is a schematic cross-sectional view of the structure of FIG. 1 in the E-E direction.
FIG. 7 is a schematic cross-sectional view of the F-F direction of FIG. 1.
FIG. 8 is a schematic cross-sectional view of the structure of FIG. 4 in the G-G direction.
FIG. 9 is a schematic cross-sectional view of the H-H direction of FIG. 4.
Fig. 10 is a circuit block diagram of the present invention.
The codes in the drawings are respectively: 1 is a lower body, 2 is an outer cylinder, 3 is a sensor mounting nipple, 4 is a runner converter, 5 is a conversion joint, 6 is a measuring groove, 7 is a mechanical measuring device, 8 is an annular groove, 9 is a sealing plug, 10 is a connecting groove, 11 is an inner mounting groove, 12 is an outer mounting groove, 13 is an inner pressure sensor, 14 is an outer pressure sensor, 15 is a first wiring plug, 16 is a second wiring plug, 17 is a third wiring plug, 18 is an inner pressure measuring channel, 19 is an outer pressure measuring channel, 20 is an outer pressure radial through hole, 21 is a second wire passing channel, 22 is a rotary plug, 23 is a wire passing through hole, 24 is a connecting joint, 25 is a cavity, 26 is an axial long hole, 27 is a connecting radial through hole, 28 is a screw plug, 29 is a multi-core sealing plug, 30 is a connecting bolt, 31 is a fastening bolt, 32 is a gland ring, 33 is a fixed plug, and 34 is a sealing ring.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples:
example 1: as shown in fig. 1 to 10, the sensor-built-in near-bit parameter measuring device comprises a body and an outer cylinder 2, wherein the inner side of the lower part of the outer cylinder 2 is fixedly and tightly arranged with the outer side of the middle part of the body, a flow passage conversion body 4 sleeved in the outer cylinder 2 is fixedly and tightly arranged at the upper end of the body, a conversion joint 5 sleeved in the outer cylinder 2 is fixedly and tightly arranged at the upper end of the flow passage conversion body 4, at least one measuring groove 6 is arranged at the outer side of the body corresponding to the lower end of the outer cylinder 2, a mechanical measuring device 7 is fixedly arranged in the measuring groove 6, an annular groove 8 is arranged at the outer side of the body above the measuring groove 6, a signal processing circuit module is fixedly arranged in the annular groove 8, an internal pressure sensor 13 and an external pressure sensor 14 are respectively and tightly arranged on the body, an internal pressure measuring channel 18 communicated with the inner side of the body is arranged on the body, the internal pressure sensor 13 measures the internal pressure of the drilling tool through an internal pressure measuring channel 18, an external pressure measuring channel 19 communicated with the outer side of the outer cylinder 2 is arranged on the body, the external pressure sensor 14 measures the annular pressure through the external pressure measuring channel 19, the signal output end of the mechanical measuring device 7 is electrically connected with the first signal input end of the signal processing circuit module, the signal output end of the internal pressure sensor 13 is electrically connected with the second signal input end of the signal processing circuit module, the signal output end of the external pressure sensor 14 is electrically connected with the third signal input end of the signal processing circuit module, a cavity 25 communicated with the inner side of the body is arranged between the right side of the outer part of the runner converter 4 and the inner side of the outer cylinder 2, a space is reserved between the outer side of the conversion joint 5 and the inner side of the outer cylinder 2, a second through-line channel 21 communicated with the annular groove 8 is arranged in the runner converter 4, a rotary plug 22 is fixedly installed in the upper end of the second wire passing channel 21 in a sealing manner.
The mechanical measuring device 7 is a well known mechanical measuring unit capable of measuring weight on bit, bending moment of the drill string and torque. The signal processing circuit module is a signal processing circuit module which is formed by an amplifier, a filter and the like and is known in the prior art. The internal pressure sensor 13 and the external pressure sensor 14 are pressure sensors in the prior art. The internal pressure sensor 13 measures the pressure inside the drill through the internal pressure measurement channel 18. The external pressure sensor 14 measures the annulus pressure through an external pressure measurement passage 19.
The rotary plug 22 is connected with a pulse generator, after the sensor built-in type near-bit parameter measuring device in this embodiment is put into the well, the mechanical measuring device 7 can obtain the down-hole drilling pressure, the bending moment and the torque of the drill string, the internal pressure sensor 13 can obtain the pressure in the down-hole drilling tool, the external pressure sensor 14 can obtain the down-hole annular pressure, the signal processing circuit module converts the parameters obtained by the mechanical measuring device 7, the internal pressure sensor 13 and the external pressure sensor 14 into pulse signals and sends the pulse signals to the pulse generator, the pulse generator uploads the received signals to the well, the sensor built-in type near-bit parameter measuring device can monitor the down-hole working condition in real time, and the down-hole working condition can be analyzed and judged through the real-time monitoring data so as to adjust the corresponding drilling parameters, thereby reducing the complex conditions such as stuck drilling, broken drilling tool, suffocating, the drill bit shortening the service life in advance, and the like.
The sensor built-in near-bit parameter measuring device can be further optimized or/and improved according to actual needs:
as shown in fig. 1 to 10, the body comprises a sensor mounting nipple 3 and a lower body 1, the inner side of the lower part of an outer cylinder 2 is fixedly mounted with the outer side of the upper part of the lower body 1 in a sealing way, the upper end of the lower body 1 is fixedly mounted with the sensor mounting nipple 3 sleeved in the outer cylinder 2 in a sealing way, a runner converter 4 is fixedly mounted at the upper end of the sensor mounting nipple 3, at least one measuring groove 6 is arranged on the outer side of the lower body 1 corresponding to the lower end of the outer cylinder 2, an annular groove 8 is arranged on the outer side of the lower body 1 between the measuring groove 6 and the sensor mounting nipple 3, a signal processing circuit module is fixedly mounted in the annular groove 8, first wire passing channels which are communicated with the measuring groove 6 and the annular groove 8 are arranged on the lower body 1 between the measuring groove 6 and the annular groove 8, the number of the first wire passing channels is the same as the number of the measuring grooves 6, a connecting groove 10, an inner mounting groove 11 and an outer mounting groove 12 which are isolated from each other are respectively arranged on the circumference of the outer side of the lower part of the sensor mounting nipple 3, an inner pressure sensor 13 which can measure the internal pressure of a drilling tool is fixed in the inner mounting groove 11, an outer pressure sensor 14 which can measure the annular pressure is fixed in the outer mounting groove 12, a first wiring plug 15 is fixedly arranged on the body between the annular groove 8 and the connecting groove 10, a second wiring plug 16 is fixedly arranged on the body between the annular groove 8 and the inner mounting groove 11, a cable between the inner pressure sensor 13 and the signal processing circuit module is connected through the second wiring plug 16, a third wiring plug 17 is fixedly arranged on the lower body 1 between the annular groove 8 and the outer mounting groove 12, a cable between the outer pressure sensor 14 and the signal processing circuit module is connected through the third wiring plug 17, an inner pressure measuring channel 18 which enables the inner mounting groove 11 to be communicated with the inner side of the lower body 1 is arranged at the upper part of the sensor mounting nipple 3, an outer pressure measuring channel 19 which is communicated with the outer mounting groove 12 is arranged at the upper part of the sensor mounting nipple 3, an outer pressure radial through hole 20 which is communicated with the outer pressure measuring channel 19 is arranged on the outer cylinder 2, a wiring through hole 23 which is communicated with the connecting groove 10 and the second wiring channel 21 is arranged on the sensor mounting nipple 3 between the second wiring channel 21 and the connecting groove 10, a connecting joint 24 is fixedly arranged in the second wiring channel 21 and the wiring through hole 23 in a sealing mode, and a cable between the signal processing circuit module and the connecting joint 24 is connected through a first wiring plug 15.
As shown in fig. 10, the signal processing circuit module includes a circuit board, on which a fluxgate, a triaxial acceleration sensor, a temperature sensitive element, a filtering amplifying circuit module, a data processing transmitting circuit module and a power module are fixed, the power output end of the power module is electrically connected to the fluxgate, the triaxial acceleration sensor, the temperature sensitive element, the filtering amplifying circuit module, the data processing transmitting circuit module, the mechanics measuring device 7, the internal pressure sensor 13 and the external pressure sensor 14, the signal output end of the mechanics measuring device 7 is electrically connected to the first signal input end of the filtering amplifying circuit module, the signal output end of the internal pressure sensor 13 is electrically connected to the second signal input end of the filtering amplifying circuit module, the signal output end of the external pressure sensor 14 is electrically connected to the third signal input end of the filtering amplifying circuit module, the signal output end of the fluxgate is electrically connected to the fourth signal input end of the filtering amplifying circuit module, the signal output end of the triaxial acceleration sensor is electrically connected to the fifth signal input end of the filtering amplifying circuit module, and the signal output end of the temperature sensitive element is electrically connected to the sixth signal input end of the filtering amplifying circuit module.
The fluxgate can measure the drilling speed of the drill string, the triaxial acceleration sensor can measure the vibration value of the drill bit, the temperature-sensitive element can measure the temperature in the well, and each measuring element (the fluxgate, the triaxial acceleration sensor, the temperature-sensitive element, the mechanical measuring device 7, the internal pressure sensor 13 and the external pressure sensor 14) obtains pulse signals after the corresponding parameters obtained by measurement are processed by the filtering and amplifying circuit module and the data processing and transmitting circuit module, and then the pulse signals are uploaded to the well through the pulse generator. The comprehensive underground working condition parameters can be obtained through the fluxgate, the triaxial acceleration sensor and the temperature-sensitive element, more data basis is provided for adjusting the corresponding drilling parameters, and the occurrence of complex well conditions such as drilling sticking, drilling breaking, tripping, life shortening of a drill bit in advance and the like is further reduced. The magnetic flux gate, the triaxial acceleration sensor, the temperature sensitive element, the filtering and amplifying circuit module, the data processing and transmitting circuit module and the power module are all known technologies in the prior art.
The mechanical measuring device 7 is a strain gauge, as required.
As shown in fig. 1 to 9, the first wire passage includes an axial long hole 26 and a connecting radial through hole 27 communicating with the axial long hole 26, the axial long hole 26 is provided on the lower body 1, the axial long hole 26 communicates with the annular groove 8, the connecting radial through hole 27 is provided between the measuring groove 6 and the axial long hole 26, a plug 28 is fixedly mounted at the lower end of the axial long hole 26 in a sealing manner, a multi-core sealing plug 29 is fixedly mounted in the connecting radial through hole 27 in a sealing manner, and a cable between the mechanical measuring device 7 and the signal processing circuit module is connected through the multi-core sealing plug 29.
The multi-core sealing plug 29 may be an eight-core sealing plug. The multi-core sealing plug 29 is a commonly known multi-core sealing plug, and the multi-core sealing plug 29 not only plays a role in sealing, but also can play a role in connecting cables. The plug 28 can block the lower end of the elongated axial hole 26 to prevent other substances from entering the elongated axial hole 26.
As shown in fig. 1, the inner side of the upper end of the lower body 1 is hermetically mounted with the outer side of the lower part of the sensor mounting nipple 3, and the upper end of the lower body 1 is fixedly mounted with the sensor mounting nipple 3 through at least one connecting bolt 30; or/and the upper part of the sensor mounting nipple 3 and the lower part of the flow passage conversion body 4 are fixedly mounted together through at least one fastening bolt 31; or/and, the upper end of the second wire passing channel 21 is in a step shape with a wide upper part and a narrow lower part, the rotary plug 22 is fixedly arranged in the step-shaped second wire passing channel 21 in a sealing way, the gland ring 32 is fixedly arranged in the upper part of the rotary plug 22 through a fastening nail, and the bottom end of the gland ring 32 is tightly propped against the top end of the rotary plug 22.
The rotary plug 22 may be a four-core rotary plug 22. The connecting bolt 30 facilitates the disassembly of the body and the sensor mounting nipple 3. The fastening bolt 31 facilitates the disassembly and assembly of the sensor mounting nipple 3 and the flow passage switching body 4. The gland ring 32 serves as a stop for the rotatable plug 22.
As shown in fig. 1 to 9, a test radial through hole communicated with the connecting groove 10 is arranged on the outer cylinder 2 corresponding to the inner side and the outer side of the connecting groove 10, and a sealing plug 9 and a fixing plug 33 are fixedly arranged in the test radial through hole from the inner side to the outer side; or/and, the first wiring plug 15 is a multi-core sealing plug; or/and, the second plug 16 is a multi-core plug; or/and, the third wiring plug 17 is a multi-core sealing plug; or/and, at least one sealing ring 34 is fixedly arranged between the inner side of the outer cylinder 2 below the measuring groove 6 and the outer side of the lower body 1, at least one sealing ring 34 is fixedly arranged between the inner side of the outer cylinder 2 between the annular groove 8 and the measuring groove 6 and the outer side of the body, at least one sealing ring 34 is fixedly arranged between the inner side of the outer cylinder 2 between the connecting groove 10 and the annular groove 8 and the outer side of the lower body 1, at least one sealing ring 34 is fixedly arranged between the inner side of the outer cylinder 2 above the connecting groove 10 and the outer side of the sensor mounting nipple 3, at least one sealing ring 34 is fixedly arranged between the outer side of the lower end of the runner converter 4 and the inner side of the outer cylinder 2, and at least one sealing ring 34 is fixedly arranged between the outer side of the upper part of the runner converter 4 and the inner side of the lower part of the conversion joint 5; or/and the lower inner side of the outer cylinder 2 and the upper outer side of the lower body 1 are fixedly arranged together through threads, and the upper outer side of the runner conversion body 4 and the lower inner side of the conversion joint 5 are arranged together through threads; or/and, an internal thread or an external thread is provided on the upper part of the outer cylinder 2, and an internal thread or an external thread is provided on the lower part of the lower body 1.
The first, second and third wire plugs 15, 16 and 17 may be six-piece sealing plugs. When the circuit in the sensor built-in near-bit parameter measuring device is required to be tested, the testing end of the external testing equipment is connected with the first wiring plug 15 through the testing radial through hole for testing; when the test is not needed, the radial through hole is sealed and tested by adopting the sealing plug 9 and the fixing plug 33. The seal ring 34 can improve the sealing performance between the structures in which the seal ring 34 is provided.
Example 2: the method of using the in-sensor near-bit parameter measurement device of embodiment 1 is performed as follows: the rotary plug 22 is fixedly installed with the pulse generator, the pulse generator is fixedly installed with the drill string, the body is fixedly installed with the drill bit, then the sensor built-in type near-drill bit parameter measuring device is placed into the well along with the drilling tool, after the sensor built-in type near-drill bit parameter measuring device is placed into the well, the mechanical measuring device 7 can measure the drilling pressure and the bending moment and torque of the drill string, the internal pressure sensor 13 can measure the internal pressure in the drilling tool, the external pressure sensor 14 can measure the annular pressure, the fluxgate can measure the drilling speed of the drill string, the triaxial acceleration sensor can measure the vibration value of the drill bit, the temperature sensitive element can measure the temperature in the well, the mechanical measuring device 7 sends the measured drilling pressure and the bending moment and torque data of the drill string to the filter amplifying circuit module, the external pressure sensor 14 sends the measured annular pressure data to the filter amplifying circuit module, the fluxgate sends the measured drilling speed data to the filter amplifying circuit module, the triaxial acceleration sensor sends the measured annular pressure data to the filter amplifying circuit module, and the temperature sensitive element receives the pulse signal to the filter amplifying module, and the pulse signal is sent to the filter amplifying module receives the pulse signal after the pulse signal has been processed.
According to the embodiment, the respective measuring elements (the fluxgate, the triaxial acceleration sensor, the temperature-sensitive element, the mechanical measuring device 7, the internal pressure sensor 13 and the external pressure sensor 14) are used for obtaining pulse signals after processing the measured corresponding parameters through the filtering and amplifying circuit module and the data processing and transmitting circuit module, and then uploading the pulse signals to a well through the pulse generator, namely, the underground working conditions can be monitored in real time through the sensor built-in near-bit parameter measuring device, and the underground working conditions can be analyzed and judged through the real-time monitoring data so as to adjust the corresponding drilling parameters, so that the occurrence of complex well conditions such as stuck drilling, broken drilling tools, tripping, premature shortening of the service life of the drill bit and the like is reduced. The system for receiving the signal on the well is a system for receiving the signal on the well in the prior art.
In summary, the sensor built-in near-bit parameter measurement device and the use method thereof can monitor the underground working condition in real time, analyze and judge the underground working condition according to the real-time monitoring data so as to adjust the corresponding drilling parameters, thereby reducing the occurrence of complex well conditions such as stuck drilling, broken drilling tool, jump-out, early life shortening of the bit, and the like.
The technical characteristics form the embodiment of the invention, have stronger adaptability and implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (6)
1. The sensor built-in type near-bit parameter measuring device is characterized by comprising a body and an outer cylinder, wherein the inner side of the lower part of the outer cylinder is fixedly and hermetically installed with the outer side of the middle part of the body, the upper end of the body is fixedly and hermetically provided with a runner conversion body sleeved in the outer cylinder, the upper end of the runner conversion body is fixedly and hermetically provided with a conversion joint sleeved in the outer cylinder, the outer side of the body corresponding to the lower end of the outer cylinder is provided with at least one measuring groove, the measuring groove is fixedly provided with a mechanical measuring device, the outer side of the body above the measuring groove is provided with an annular groove, the annular groove is fixedly provided with a signal processing circuit module, the body is respectively and fixedly provided with an internal pressure measuring channel communicated with the inner side of the body, the internal pressure sensor is used for measuring the internal pressure of a drilling tool through the internal pressure measuring channel, an external pressure measuring channel communicated with the outer side of the outer cylinder is arranged on the body, an external pressure sensor is used for measuring annular pressure through the external pressure measuring channel, a signal output end of the mechanical measuring device is electrically connected with a first signal input end of the signal processing circuit module, a signal output end of the internal pressure sensor is electrically connected with a second signal input end of the signal processing circuit module, a signal output end of the external pressure sensor is electrically connected with a third signal input end of the signal processing circuit module, a cavity communicated with the inside of the body is arranged between the right side of the outside of the flow passage conversion body and the inner side of the outer cylinder, a space is reserved between the outer side of the conversion joint and the inner side of the outer cylinder, a second line passing channel communicated with the annular groove is arranged in the flow passage conversion body, a rotary plug is fixedly arranged in the upper end of the second line passing channel in a sealing manner, the body comprises a sensor mounting nipple and a lower body, the inner side of the lower part of the outer cylinder is fixedly installed with the outer side of the upper part of the lower body in a sealing way, the upper end of the lower body is fixedly installed with sensor installation pup joints sleeved in the outer cylinder in a sealing way, the runner conversion body is fixedly installed at the upper end of the sensor installation pup joint, at least one measuring groove is arranged on the outer side of the lower body corresponding to the lower end of the outer cylinder, an annular groove is arranged on the outer side of the lower body between the measuring groove and the sensor installation pup joint, a signal processing circuit module is fixedly installed in the annular groove, first wire passing channels which are communicated with the measuring groove and the annular groove are arranged on the lower body between the measuring groove and the annular groove, the number of the first wire passing channels is the same as that of the measuring groove, mutually isolated connecting grooves, inner installation grooves and outer installation grooves are respectively arranged on the outer side of the lower part of the sensor installation pup joint along the circumference, an inner pressure sensor capable of measuring the internal pressure of the drilling tool is fixed in the inner mounting groove, an outer pressure sensor capable of measuring the annular pressure is fixed in the outer mounting groove, a first wiring plug is fixedly arranged on the body between the annular groove and the connecting groove, a second wiring plug is fixedly arranged on the body between the annular groove and the inner mounting groove, a cable between the inner pressure sensor and the signal processing circuit module is connected through the second wiring plug, a third wiring plug is fixedly arranged on the lower body between the annular groove and the outer mounting groove, a cable between the outer pressure sensor and the signal processing circuit module is connected through the third wiring plug, an inner pressure measuring channel which enables the inner mounting groove to be communicated with the inner side of the lower body is arranged at the upper part of the sensor mounting nipple, an outer pressure measuring channel which is communicated with the outer mounting groove is arranged at the upper part of the sensor mounting nipple, an external pressure radial through hole communicated with an external pressure measuring channel is formed in the outer barrel, a sensor mounting nipple between the second wire passing channel and the connecting groove is provided with a wire passing through hole communicated with the connecting groove and the second wire passing channel, a connecting joint is fixedly arranged in the second wire passing channel and the wire passing through hole in a sealing manner, and a cable between the signal processing circuit module and the connecting joint is connected through a first wiring plug; the mechanical measuring device is a strain gauge, and the rotary plug is a four-core rotary plug.
2. The sensor-in-type near-bit parameter measurement device according to claim 1, wherein the signal processing circuit module comprises a circuit board, a fluxgate, a triaxial acceleration sensor, a temperature sensitive element, a filtering amplifying circuit module, a data processing transmitting circuit module and a power module are fixed on the circuit board, a power output end of the power module is electrically connected with power input ends of the fluxgate, the triaxial acceleration sensor, the temperature sensitive element, the filtering amplifying circuit module, the data processing transmitting circuit module, the mechanical measurement device, an internal pressure sensor and an external pressure sensor respectively, a signal output end of the mechanical measurement device is electrically connected with a first signal input end of the filtering amplifying circuit module, a signal output end of the internal pressure sensor is electrically connected with a second signal input end of the filtering amplifying circuit module, a signal output end of the external pressure sensor is electrically connected with a third signal input end of the filtering amplifying circuit module, a signal output end of the fluxgate is electrically connected with a fourth signal input end of the filtering amplifying circuit module, a signal output end of the triaxial acceleration sensor is electrically connected with a fifth signal input end of the filtering amplifying circuit module, and a signal output end of the temperature sensitive element is electrically connected with a signal output end of the six-processing circuit module.
3. The sensor-embedded near-bit parameter measurement device according to claim 2, wherein the first wire passage comprises an axial long hole and a connecting radial through hole communicated with the axial long hole, the axial long hole is arranged on the lower body, the axial long hole is communicated with the annular groove, the connecting radial through hole is arranged between the measurement groove and the axial long hole, a plug is fixedly arranged at the lower end of the axial long hole in a sealing manner, a multi-core sealing plug is fixedly arranged in the connecting radial through hole in a sealing manner, and a cable between the mechanical measurement device and the signal processing circuit module is connected through the multi-core sealing plug.
4. The sensor-embedded near-bit parameter measurement device according to claim 3, wherein the inner side of the upper end of the lower body is mounted with the outer side of the lower part of the sensor mounting nipple in a sealing manner, and the upper end of the lower body is fixedly mounted with the sensor mounting nipple through at least one connecting bolt; the upper part of the sensor mounting nipple is fixedly mounted with the lower part of the runner conversion body through at least one fastening bolt; the upper end of the second wire passing channel is in a step shape with a wide upper part and a narrow lower part, the rotary plug is fixedly installed in the step-shaped second wire passing channel in a sealing way, a gland ring is fixedly installed in the upper part of the rotary plug through a fastening nail, and the bottom end of the gland ring is tightly propped against the top end of the rotary plug.
5. The sensor-built-in near-bit parameter measuring device according to claim 4, wherein the outer cylinder corresponding to the inside and the outside of the connecting groove is provided with a test radial through hole communicated with the connecting groove, and a sealing plug and a fixing plug are fixedly arranged in the test radial through hole from inside to outside; the first wiring plug is a multi-core sealing plug; the second wiring plug is a multi-core sealing plug; or/and the third wiring plug is a multi-core sealing plug; at least one sealing ring is fixedly arranged between the inner side of the outer cylinder below the measuring groove and the outer side of the lower body, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder between the annular groove and the measuring groove and the outer side of the body, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder between the connecting groove and the annular groove and the outer side of the lower body, at least one sealing ring is fixedly arranged between the inner side of the outer cylinder above the connecting groove and the outer side of the sensor mounting nipple, at least one sealing ring is fixedly arranged between the outer side of the lower end of the runner converter and the inner side of the outer cylinder, and at least one sealing ring is fixedly arranged between the outer side of the upper part of the runner converter and the inner side of the lower part of the conversion joint; the inner side of the lower part of the outer cylinder is fixedly arranged with the outer side of the upper part of the lower body through threads, and the outer side of the upper part of the runner conversion body is arranged with the inner side of the lower part of the conversion joint through threads; an internal thread or an external thread is arranged on the upper part of the outer cylinder, and an internal thread or an external thread is arranged on the lower part of the lower body.
6. A method of using the in-sensor near-bit parameter measurement device of claim 2 or 3 or 4 or 5, characterized by the following: the method comprises the steps of fixedly mounting a rotary plug and a pulse generator together, fixedly mounting a pulse generator and a drill string together, fixedly mounting a body and a drill bit together, then, lowering a sensor built-in near-drill bit parameter measuring device into a well along with a drilling tool, after the sensor built-in near-drill bit parameter measuring device is lowered into the well, measuring the drilling pressure and the bending moment and torque of the drill string by a mechanical measuring device, measuring the internal pressure in the drilling tool by an internal pressure sensor, measuring the annular pressure by an external pressure sensor, measuring the drilling speed of the drill string by a fluxgate, measuring the vibration value of the drill bit by a triaxial acceleration sensor, measuring the temperature in the well by a temperature sensitive element, transmitting the measured bending moment and torque data of the drill string to a filter amplifying circuit module by the mechanical measuring device, transmitting the measured annular pressure data to the filter amplifying circuit module by the external pressure sensor, transmitting the measured annular pressure data to the filter amplifying circuit module by the magnetic fluxgate, transmitting the measured vibration value data to the filter amplifying circuit module by the triaxial acceleration sensor, transmitting the measured vibration value data to the filter amplifying circuit module, transmitting the temperature data to the temperature sensitive element to the filter amplifying circuit module, and receiving the pulse signal after the temperature sensor receives the pulse signal, and transmitting the pulse signal to the filter amplifying module and processing the pulse signal to the filter amplifying module.
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| CN201610860354.2A CN106285631B (en) | 2016-09-28 | 2016-09-28 | Sensor built-in near-bit parameter measuring device and application method thereof |
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