CN116136170A - Anti-collision instrument for while-drilling detection based on magnetostatic measurement principle - Google Patents
Anti-collision instrument for while-drilling detection based on magnetostatic measurement principle Download PDFInfo
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- CN116136170A CN116136170A CN202111366411.9A CN202111366411A CN116136170A CN 116136170 A CN116136170 A CN 116136170A CN 202111366411 A CN202111366411 A CN 202111366411A CN 116136170 A CN116136170 A CN 116136170A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
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- 229910052751 metal Inorganic materials 0.000 claims description 7
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- ZAUUZASCMSWKGX-UHFFFAOYSA-N manganese nickel Chemical compound [Mn].[Ni] ZAUUZASCMSWKGX-UHFFFAOYSA-N 0.000 description 1
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
- E21B47/017—Protecting measuring instruments
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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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/138—Devices entrained in the flow of well-bore fluid for transmitting data, control or actuation signals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
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Abstract
The invention relates to the technical field of measurement while drilling, in particular to a measurement while drilling anti-collision instrument based on a magnetostatic measurement principle. The invention has reasonable and compact structure and convenient use, the disturbance of the adjacent well casing to the geomagnetic field is measured through the underground measuring probe tube and the rectifying coding driving pup joint, the measured data is uploaded to the ground receiving system through the slurry pulse generated by the high-power pulse generator, and the relative distance and the relative direction between the two wells are calculated by the ground decoding system, so that the cluster well anti-collision operation is guided, the influence of ellipsoidal errors caused by the magnetic field intensity of the adjacent well casing in the cluster well and the precision of the inclinometer is eliminated, and a brand new technical means is provided for the cluster well anti-collision, and the invention has the characteristics of accuracy, stability and high efficiency.
Description
Technical Field
The invention relates to the technical field of measurement while drilling, in particular to a measurement while drilling anti-collision instrument based on a magnetostatic measurement principle.
Background
At present, cluster well drilling technology has become one of the indispensable technologies for exploration and development of special oil and gas reservoir resources such as thickened oil high-freezing oil and the like. However, for dense cluster wells, because the well head interval is smaller, the drilling quality requirement on the straight well section before deflecting is extremely high, and the quality of the straight well section is ensured, so that the key technology is anti-collision. The wellbore trajectory is typically tracked and monitored in the field using visualization techniques. The visual drilling technology mainly utilizes borehole track parameters of a positive drilling well and a drilled adjacent well measured by an inclinometer, predicts the collision trend of a lower borehole by combining an anti-collision scanning method and a calculation method of the borehole track, and takes measures to bypass barriers at the position where the relative distance is smaller than the safe distance so as to avoid the occurrence of borehole collision accidents. But this method relies on the data accuracy of the inclinometer. When the well spacing between the wellheads of the cluster wells is smaller, the magnetic field intensity of the casing pipe at the straight well section of the adjacent well is very easy to interfere with the inclinometer, the measurement error of the inclinometer can also affect the data, and the method can not eliminate the accumulated error in the measurement process. In view of this, how to determine the relative spatial position between the drilling well and the adjacent well in the cluster well, effectively guiding the anti-collision operation is a current urgent problem to be solved.
Disclosure of Invention
The invention provides a while-drilling detection anti-collision instrument based on a magnetostatic measurement principle, which overcomes the defects of the prior art and can effectively solve the problem of ellipsoidal errors caused by the magnetic field intensity of adjacent well casings in a cluster well and the precision of an inclinometer.
The technical scheme of the invention is realized by the following measures: the down-hole measuring probe comprises an upper joint, a first compression-resistant cylinder, a lower joint, a damping support assembly, a first circuit board framework, a central connector and a stopping shaft, wherein the outer side of the lower end of the upper joint is fixedly arranged with the inner side of the upper end of the first compression-resistant cylinder; the rectifying coding driving nipple comprises an adapter, a second compression-resistant cylinder, an outer protecting pipe, a righting connector, a third compression-resistant cylinder, a second circuit board framework, a first connecting component, a third circuit board framework and a second connecting component, wherein the lower end of the lower connector is fixedly arranged with the upper end of the adapter, the outer side of the lower end of the adapter is fixedly arranged with the inner side of the upper end of the second compression-resistant cylinder, the outer side of the lower end of the second compression-resistant cylinder is fixedly arranged with the outer side of the upper end of the righting connector through the outer protecting pipe, the outer side of the lower end of the righting connector is fixedly arranged with the inner side of the upper end of the third compression-resistant cylinder, the second circuit board framework is arranged in the second compression-resistant cylinder, the first connecting component is arranged between the second circuit board framework and the righting connector, the second connecting component is arranged in the third compression-resistant cylinder corresponding to the lower position of the third circuit board framework, and the high-power pulse generator is fixedly arranged at the lower end of the third compression-resistant cylinder.
The following are further optimizations and/or improvements to the above-described inventive solution:
the anti-collision module can comprise a borehole track acquisition module, a magnetic field acquisition control module and a central control communication module, wherein the second circuit board framework is provided with a first rectification voltage stabilizing module, the third circuit board framework is provided with a second rectification voltage stabilizing module, the borehole track acquisition module and the magnetic field acquisition control module are respectively connected with the central control communication module, the central control communication module is connected with the first rectification voltage stabilizing module, the first rectification voltage stabilizing module is connected with the second rectification voltage stabilizing module, and the second rectification voltage stabilizing module is connected with the high-power pulse generator.
The magnetic field acquisition control module can comprise a magnetic field acquisition circuit, a digital signal processing unit and a fluxgate driving circuit, wherein the magnetic field acquisition circuit comprises three paths of acquisition sub-circuits and a field programmable logic array, each acquisition sub-circuit comprises a fluxgate sensor, a band-pass filter, a gain circuit and a digital-to-analog converter which are sequentially connected, the fluxgate sensor is excited by the fluxgate driving circuit, each acquisition sub-circuit is used for respectively acquiring and processing X, Y, Z axis magnetic fluxes, and the field programmable logic array is used for storing signals obtained after the three paths of acquisition sub-circuits are processed into sampling waveform data; the digital signal processing unit is used for carrying out digital band-pass filtering on the sampled waveform data, carrying out digital phase-sensitive detection on a filtering signal obtained by the digital band-pass filtering, carrying out digital integration on the waveform data after the digital phase-sensitive detection, and carrying out digital low-pass filtering and amplitude extraction on the waveform data obtained by the digital integration to obtain the magnetic field intensity.
The first rectifying voltage stabilizing module and the second rectifying voltage stabilizing module can comprise a decoding chip, a diode, a field effect transistor driving circuit, a comparison circuit, a phase-locked loop demodulator, a voltage protection circuit and a capacitive coupling transformer which are sequentially connected.
The damping support assembly can comprise a tension screw rod, a tension pressing plate, a piston ring, a steel ball, a tension bolt, a tension nut and a limiting disc spring, wherein the tension screw rod is arranged in the upper joint, at least two mounting holes are circumferentially distributed on the outer side of the lower part of the upper joint corresponding to the lower part of the tension screw rod, a first inner annular groove is formed in the inner side of the upper part of the first compression-resistant cylinder corresponding to the position of the mounting holes, the piston ring is arranged in the first inner annular groove, a steel ball with the inner end positioned in the upper joint is arranged in the mounting holes, a pressing ring platform is arranged on the outer side of the lower end of the tension screw rod corresponding to the position below the mounting holes, a mounting cavity penetrating up and down is arranged on the outer side of the lower end of the tension screw rod, a second inner annular groove is arranged in the second inner annular groove, a tension bolt with the upper end positioned in the mounting cavity is arranged on the outer side of the tension screw rod, a limiting disc spring is arranged on the outer side of the lower end of the tension screw rod corresponding to the position between the upper end of the first outer annular groove, a third inner annular groove is arranged on the outer side of the upper side of the first outer ring, a retainer ring is arranged on the outer side of the tension screw rod corresponding to the position below the tension screw rod corresponding to the tension screw rod, a retaining ring is arranged on the outer side of the tension plate corresponding to the lower end of the tension screw rod corresponding to the tension nut.
The first connecting component can comprise a first framework connector, a first rubber shock absorption joint, a first connector gland and a first Ramer connector seat, wherein the first framework connector which is installed together with the second circuit board framework is arranged on the inner side of the lower end of the second compression-resistant cylinder, the lower end of the first framework connector is inserted into the first rubber shock absorption joint through interference fit, the first connector gland is fixedly arranged on the outer side of the lower end of the first rubber shock absorption joint, and the first Ramer connector seat with the upper end positioned in the first connector gland is limited and installed on the inner side of the lower end of the first connector gland; the second connecting assembly comprises a second framework connector, a second rubber shock absorption joint, a second connector gland and a second Ramer connector seat, the second framework connector which is installed together with a third circuit board framework is arranged on the inner side of the lower end of the third compression-resistant cylinder, the lower end of the second framework connector is inserted into the second rubber shock absorption joint through interference fit, the second connecting gland is fixedly installed on the outer side of the lower end of the second rubber shock absorption joint, and the second Ramer connector seat with the upper end located in the second connecting gland is limited and installed on the inner side of the lower end of the second connecting gland.
The upper joint is provided with an aluminum clamping gasket, the lower end of the aluminum clamping gasket is positioned in the upper joint, and the upper side of the aluminum clamping gasket is sequentially and fixedly provided with an upper damping gasket, a metal gasket and a lower damping gasket from top to bottom.
The centering guide device can further comprise a centering guide rib plate, and the centering guide rib plate is fixedly arranged on the outer side of the middle part of the centering guide joint.
The invention has reasonable and compact structure and convenient use, the disturbance of the adjacent well casing to the geomagnetic field is measured through the underground measuring probe tube and the rectifying coding driving pup joint, the measured data is uploaded to the ground receiving system through the slurry pulse generated by the high-power pulse generator, and the relative distance and the relative direction between the two wells are calculated by the ground decoding system, so that the cluster well anti-collision operation is guided, the influence of ellipsoidal errors caused by the magnetic field intensity of the adjacent well casing in the cluster well and the precision of the inclinometer is eliminated, and a brand new technical means is provided for the cluster well anti-collision, and the invention has the characteristics of accuracy, stability and high efficiency.
Drawings
Fig. 1 is a schematic diagram of a front view of a preferred embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the upper half of the downhole measurement probe of FIG. 1.
FIG. 3 is a schematic cross-sectional view of the lower half of the downhole measurement probe of FIG. 1.
Fig. 4 is a schematic view of a partial enlarged structure at a in fig. 2.
Fig. 5 is a schematic cross-sectional view of the upper half of the rectifying encoded driving nipple of fig. 1.
Fig. 6 is a schematic cross-sectional view of the lower half of the rectifying encoded driving nipple of fig. 1.
The codes in the drawings are respectively: 1 is an upper joint, 2 is a first compression-resistant cylinder, 3 is a lower joint, 4 is a first circuit board skeleton, 5 is a central connector, 6 is a rotating shaft, 7 is a conversion joint, 8 is a second compression-resistant cylinder, 9 is an outer protection tube, 10 is a centralizing joint, 11 is a third compression-resistant cylinder, 12 is a second circuit board skeleton, 13 is a third circuit board skeleton, 14 is a tensioning screw, 15 is a tensioning pressing plate, 16 is a piston ring, 17 is a steel ball, 18 is a tensioning bolt, 19 is a tensioning nut, 20 is a limiting disc spring, 21 is a mounting hole, 22 is an extrusion ring table, 23 is a mounting cavity, 24 is a first inner ring groove, 25 is a second inner ring groove, 26 is a third inner ring groove, 27 is a first skeleton connector, 28 is a first rubber damping joint, 29 is a first connector gland, 30 is a first Ramer connector seat, 31 is an upper damping gasket, 32 is a metal gasket, 33 is a lower damping gasket, 34 is an aluminum clamping gasket, 35 is a centralizer rib plate, and 36 is a high-power pulse generator.
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 and figures:
as shown in fig. 1, 2, 3, 4, 5 and 6, the while-drilling detection anti-collision instrument based on the magnetostatic measurement principle comprises an underground measurement probe tube, a rectifying coding driving nipple and a high-power pulse generator 36, wherein the underground measurement probe tube comprises an upper joint 1, a first compression cylinder 2, a lower joint 3, a damping support component, a first circuit board framework 4, a central connector 5 and a stop shaft 6, the outer side of the lower end of the upper joint 1 is fixedly installed with the inner side of the upper end of the first compression cylinder 2, the inner side of the lower end of the first compression cylinder 2 is fixedly installed with the outer side of the upper end of the lower joint 3, a first circuit board framework 4 is arranged in the first compression cylinder 2, an anti-collision module capable of collecting borehole track data of drilling and measuring the magnetic field intensity of an adjacent well sleeve is arranged on the first circuit board framework 4, the upper joint 1 is provided with a damping support component capable of supporting and limiting the upper end of the first circuit board framework 4, the lower end of the first circuit board framework 4 is fixedly provided with the central connector 5, the lower end of the first circuit board framework 4 is fixedly installed above the lower end of the first compression cylinder 2, the inner side of the lower joint 3 is fixedly installed with the first compression cylinder 2, the upper end of the first circuit board framework is fixedly installed with the central connector 5, the upper end of the first compression cylinder 2 is fixedly installed with the stop shaft 6 through the key connection, and the lower end of the first compression cylinder 2 is fixedly installed with the stop shaft 6; the rectifying coding driving nipple comprises an adapter 7, a second compression-resistant cylinder 8, an outer protection tube 9, a righting joint 10, a third compression-resistant cylinder 11, a second circuit board framework 12, a first connecting component, a third circuit board framework 13 and a second connecting component, wherein the lower end of the lower joint 3 is fixedly installed with the upper end of the adapter 7, the outer side of the lower end of the adapter 7 is fixedly installed with the inner side of the upper end of the second compression-resistant cylinder 8, the outer side of the lower end of the second compression-resistant cylinder 8 is fixedly installed with the outer side of the upper end of the righting joint 10 through the outer protection tube 9, the outer side of the lower end of the righting joint 10 is fixedly installed with the inner side of the upper end of the third compression-resistant cylinder 11, the second circuit board framework 12 is arranged in the second compression-resistant cylinder 8, the first connecting component is arranged between the second circuit board framework 12 and the righting joint 10, the third circuit board framework 13 is arranged in the third compression-resistant cylinder 11, the second connecting component is arranged in the third compression-resistant cylinder 11 corresponding to the lower position of the third circuit board framework 13, and the high-power pulse generator 36 is fixedly installed at the lower end of the third compression-resistant cylinder. In the use process, the underground measuring probe is used for collecting the borehole track data of the well being drilled, the underground measuring probe comprises a well inclination angle and a well inclination azimuth angle, meanwhile, the magnetic field intensity of the adjacent well casing can be measured, the measured information is transmitted to the rectifying coding driving nipple through a communication line in the form of an electric signal, and the control coding and decoding module in the rectifying coding driving nipple controls the high-power pulse generator 36 in the form of the electric signal so as to enable the high-power pulse generator to send mud pulses corresponding to the data measured by the underground measuring probe.
According to the demand, upper joint 1 and lower joint 3 are connected with first resistance to compression section of thick bamboo 2 both ends respectively through the screw thread, connecting thread can select according to the actual conditions in the pit to accord with national standard ordinary screw thread or trapezoidal screw thread, also can select the unified screw thread of American system, upper joint 1, first resistance to compression section of thick bamboo 2 and the inside through-hole that forms the internal diameter different through the turning of lower joint 3 are used for placing the interior parts such as first circuit board skeleton 4, wherein upper joint 1 and lower joint 3 select high manganese nickel complex stainless steel material, first resistance to compression section of thick bamboo 2 select non-magnetic titanium alloy material, isolated outside mud and prevent bumping the module contact, protection first resistance to compression module that circuit board skeleton and last setting up is prevented bumping the module and is prevented from being influenced by external load such as bending, extrusion.
The anti-collision instrument for the while-drilling detection based on the magnetostatic measurement principle can be further optimized or/and improved according to actual needs:
as shown in fig. 1, 2, 3, 4, 5 and 6, the anti-collision module comprises a borehole track acquisition module, a magnetic field acquisition control module and a central control communication module, a first rectification voltage stabilizing module is arranged on the second circuit board framework 12, a second rectification voltage stabilizing module is arranged on the third circuit board framework 13, the borehole track acquisition module and the magnetic field acquisition control module are respectively connected with the central control communication module, the central control communication module is connected with the first rectification voltage stabilizing module, the first rectification voltage stabilizing module is connected with the second rectification voltage stabilizing module, and the second rectification voltage stabilizing module is connected with the high-power pulse generator 36. In the use process, through the arrangement, the borehole track data of the drilling well is collected, and meanwhile, the magnetic field intensity of the casing pipe of the adjacent well can be measured.
As shown in fig. 1, 2, 3, 4, 5 and 6, the magnetic field acquisition control module comprises a magnetic field acquisition circuit, a digital signal processing unit and a fluxgate driving circuit, the magnetic field acquisition circuit comprises three acquisition sub-circuits and a field programmable logic array, each acquisition sub-circuit comprises a fluxgate sensor, a band-pass filter, a gain circuit and a digital-analog converter which are sequentially connected, the fluxgate sensor is excited by the fluxgate driving circuit, each acquisition sub-circuit is used for respectively acquiring and processing X, Y, Z shaft magnetic fluxes, and the field programmable logic array is used for storing signals obtained after the processing of the three acquisition sub-circuits into sampling waveform data; the digital signal processing unit is used for carrying out digital band-pass filtering on the sampled waveform data, carrying out digital phase-sensitive detection on a filtering signal obtained by the digital band-pass filtering, carrying out digital integration on the waveform data after the digital phase-sensitive detection, and carrying out digital low-pass filtering and amplitude extraction on the waveform data obtained by the digital integration to obtain the magnetic field intensity. In the use process, through the arrangement, borehole track data of the drilling well collected by the underground measurement probe and the measured magnetic field intensity of the casing pipe of the adjacent well are transmitted downwards to the rectifying coding driving nipple.
As shown in fig. 1, 2, 3, 4, 5 and 6, the first rectifying and voltage stabilizing module and the second rectifying and voltage stabilizing module respectively comprise a decoding chip, a diode, a field effect transistor driving circuit, a comparison circuit, a phase-locked loop demodulator, a voltage protection circuit and a capacitive coupling transformer which are sequentially connected. In use, the arrangement causes the rectifying coded drive nipple to control the high power pulser 36 in the form of an electrical signal to transmit mud pulses corresponding to data measured by the downhole measurement probe.
As shown in fig. 1, 2, 3, 4, 5 and 6, the damping support assembly comprises a tension screw 14, a tension plate 15, a piston ring 16, a steel ball 17, a tension bolt 18, a tension nut 19 and a limiting disc spring 20, wherein the tension screw 14 is arranged in the upper joint 1, at least two mounting holes 21 are circumferentially distributed on the outer side of the lower part of the upper joint 1 corresponding to the lower part of the tension screw 14, a first inner ring groove 24 is arranged on the inner side of the upper part of the first compression cylinder 2 corresponding to the position of the mounting holes 21, a piston ring 16 is arranged in the first inner ring groove 24, a steel ball 17 with the inner end positioned in the upper joint 1 is arranged in the mounting holes 21, an extrusion ring table 22 is arranged on the outer side of the lower end of the tension screw 14 corresponding to the lower part of the mounting holes 21, a mounting cavity 23 which penetrates up and down is arranged on the inner side of the lower end of the tension screw 14, a second inner ring groove 25 is arranged on the inner side of the lower end of the tension screw 14, a first outer ring groove 24 corresponding to the lower end of the tension screw 18 is arranged on the outer side of the lower end of the tension screw, a third ring groove 26 corresponding to the lower end of the tension plate 18 is arranged on the outer side of the tension plate 18, a third ring groove 26 corresponding to the lower end of the tension plate 18 is arranged on the outer side of the lower end of the tension plate, and a third ring groove 26 corresponding to the lower end of the tension plate 18 is arranged on the lower end of the tension plate corresponding to the lower end of the tension plate 20 is arranged on the lower side of the lower end of the tension plate 15. In the use process, the tension screw 14 is arranged to apply pressure to the first circuit board framework 4 and play a role in self-locking; the expansion and compression plate 15 is arranged, so that the limit disc spring 20 is conveniently fixed in the second inner annular groove 25, and the limit disc spring 20 is compressed, so that the limit disc spring has initial pre-tightening force, and the vibration resistance level of the underground measuring probe tube is improved; by arranging three steel balls 17 and a piston ring 16, the piston ring 16 can be a known split ring, a self-locking effect is achieved, after the underground measuring probe tube is detected to be qualified on a vibration test table, a special spanner is used for clockwise rotating a tensioning bolt 18, the steel balls 17 move to the outer side of an extrusion ring table 22 from the outer side of the middle part of a tensioning screw 14, so that the diameter of the piston ring 16 is enlarged and enters a first inner ring groove 24 to achieve self-locking under the thrust of the steel balls 17, and the first circuit board framework 4 is always compressed under the strong underground vibration of the underground measuring probe tube; in addition, the tensioning bolt 18 is rotated anticlockwise by a special wrench, the steel ball 17 moves from the outer side of the extrusion ring table 22 to the outer side of the middle part of the tensioning screw 14, the piston ring 16 is restored to the original diameter, and the piston ring is separated from the first inner ring groove 24, so that self-locking is released.
As shown in fig. 1, 2, 3, 4, 5 and 6, the first connecting assembly comprises a first skeleton connector 27, a first rubber shock-absorbing joint 28, a first connector gland 29 and a first stormer connector seat 30, the inner side of the lower end of the second compression-resistant cylinder 8 is provided with the first skeleton connector 27 which is installed together with the second circuit board skeleton 12, the lower end of the first skeleton connector 27 is inserted into the first rubber shock-absorbing joint 28 through interference fit, the outer side of the lower end of the first rubber shock-absorbing joint 28 is fixedly provided with the first connecting gland, and the inner side of the lower end of the first connecting gland is provided with the first stormer connector seat 30 with the upper end positioned therein in a limiting way; the second connecting assembly comprises a second framework connector, a second rubber shock absorption joint, a second connector gland and a second Ramer connector seat, the second framework connector which is installed together with a third circuit board framework 13 is arranged on the inner side of the lower end of the third compression cylinder 11, the lower end of the second framework connector is inserted into the second rubber shock absorption joint through interference fit, the second connecting gland is fixedly installed on the outer side of the lower end of the second rubber shock absorption joint, and the second Ramer connector seat with the upper end located in the second connecting gland is limited and installed on the inner side of the lower end of the second connecting gland. In the use process, by the arrangement, the stability of signal transmission is enhanced, and high-quality communication among different circuits is ensured.
As shown in fig. 1, 2, 3, 4, 5 and 6, the shock absorber further comprises a shock absorber assembly, wherein the shock absorber assembly comprises an aluminum clamp gasket 34, an upper shock absorber gasket 31, a metal gasket 32 and a lower shock absorber gasket 33, the upper end of the upper joint 1 is provided with the aluminum clamp gasket 34 with the lower end positioned in the upper joint 1, and the upper side of the aluminum clamp gasket 34 is fixedly provided with the upper shock absorber gasket 31, the metal gasket 32 and the lower shock absorber gasket 33 from top to bottom in sequence. In the use process, through the arrangement, the damping effect of the invention is enhanced, and high-quality communication between different circuits is ensured.
As shown in fig. 1, 2, 3, 4, 5 and 6, the centering joint further comprises a centering rib plate 35, and the centering rib plate 35 is fixedly arranged on the outer side of the middle part of the centering joint 10. The centering joint 10 plays a role in centering instrument strings, improves underground data measurement accuracy, the centering joint 10 is connected with the centering rib plate 35 through screws, the centering rib plate 35 is formed by bonding titanium alloy and rubber, the surface of the titanium alloy coated rubber is required to be subjected to sand blasting treatment, and the bonding strength between the rubber and metal is greater than 3.7MPa.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (10)
1. The down-hole measuring probe comprises an upper joint, a first compression-resistant cylinder, a lower joint, a damping support component, a first circuit board framework, a central connector and a rotation stopping shaft, wherein the outer side of the lower end of the upper joint is fixedly arranged with the inner side of the upper end of the first compression-resistant cylinder; the rectifying coding driving nipple comprises an adapter, a second compression-resistant cylinder, an outer protecting pipe, a righting connector, a third compression-resistant cylinder, a second circuit board framework, a first connecting component, a third circuit board framework and a second connecting component, wherein the lower end of the lower connector is fixedly arranged with the upper end of the adapter, the outer side of the lower end of the adapter is fixedly arranged with the inner side of the upper end of the second compression-resistant cylinder, the outer side of the lower end of the second compression-resistant cylinder is fixedly arranged with the outer side of the upper end of the righting connector through the outer protecting pipe, the outer side of the lower end of the righting connector is fixedly arranged with the inner side of the upper end of the third compression-resistant cylinder, the second circuit board framework is arranged in the second compression-resistant cylinder, the first connecting component is arranged between the second circuit board framework and the righting connector, the second connecting component is arranged in the third compression-resistant cylinder corresponding to the lower position of the third circuit board framework, and the high-power pulse generator is fixedly arranged at the lower end of the third compression-resistant cylinder.
2. The anti-collision instrument for while-drilling detection based on the magnetostatic measurement principle according to claim 1, wherein the anti-collision module comprises a borehole track acquisition module, a magnetic field acquisition control module and a central control communication module, a first rectifying and voltage stabilizing module is arranged on the second circuit board framework, a second rectifying and voltage stabilizing module is arranged on the third circuit board framework, the borehole track acquisition module and the magnetic field acquisition control module are respectively connected with the central control communication module, the central control communication module is connected with the first rectifying and voltage stabilizing module, the first rectifying and voltage stabilizing module is connected with the second rectifying and voltage stabilizing module, and the second rectifying and voltage stabilizing module is connected with the high-power pulse generator.
3. The anti-collision instrument for detection while drilling based on the magnetostatic measurement principle according to claim 2, wherein the magnetic field acquisition control module comprises a magnetic field acquisition circuit, a digital signal processing unit and a fluxgate driving circuit, the magnetic field acquisition circuit comprises three acquisition sub-circuits and a field programmable logic array, each acquisition sub-circuit comprises a fluxgate sensor, a band-pass filter, a gain circuit and a digital-to-analog converter which are sequentially connected, the fluxgate sensor is excited by the fluxgate driving circuit, each acquisition sub-circuit is used for respectively acquiring and processing X, Y, Z-axis magnetic fluxes, and the field programmable logic array is used for storing signals obtained after the processing of the three acquisition sub-circuits as sampling waveform data; the digital signal processing unit is used for carrying out digital band-pass filtering on the sampled waveform data, carrying out digital phase-sensitive detection on a filtering signal obtained by the digital band-pass filtering, carrying out digital integration on the waveform data after the digital phase-sensitive detection, and carrying out digital low-pass filtering and amplitude extraction on the waveform data obtained by the digital integration to obtain the magnetic field intensity.
4. The instrument for preventing collision while drilling based on magnetostatic measurement principle according to claim 2 or 3, wherein the first rectifying and voltage stabilizing module and the second rectifying and voltage stabilizing module each comprise a decoding chip, a diode, a field effect transistor driving circuit, a comparison circuit, a phase-locked loop demodulator, a voltage protection circuit and a capacitive coupling transformer which are sequentially connected.
5. The instrument according to claim 1, 2 or 3, wherein the shock absorbing support assembly comprises a tension screw, a tension pressing plate, a piston ring, a steel ball, tension bolts, tension nuts and limit disc springs, the tension screw is arranged in the upper joint, at least two mounting holes are circumferentially distributed on the outer side of the lower part of the upper joint corresponding to the lower part of the tension screw, a first inner annular groove is arranged on the inner side of the upper part of the first compression cylinder corresponding to the position of the mounting holes, the piston ring is arranged in the first inner annular groove, a steel ball with the inner end positioned in the upper joint is arranged in the mounting holes, a pressing ring table is arranged on the outer side of the lower end of the tension screw corresponding to the position of the mounting holes, a mounting cavity penetrating up and down is arranged on the outer side of the lower end of the tension screw, a second inner annular groove is arranged on the inner side of the lower end of the tension screw, a limit disc is arranged on the outer side of the tension bolts corresponding to the position between the upper end of the first outer annular groove, a third annular groove is arranged on the outer side of the lower end of the tension screw, and a third inner annular groove is arranged on the outer side of the lower end of the tension screw corresponding to the lower end of the tension screw, and a third pressing ring is arranged on the outer side of the lower end of the tension screw.
6. The instrument of claim 4, wherein the shock absorbing support assembly comprises a tension screw, a tension pressing plate, a piston ring, a steel ball, a tension bolt, a tension nut and a limit disc spring, the tension screw is arranged in the upper joint, at least two mounting holes are circumferentially distributed on the outer side of the lower part of the upper joint corresponding to the lower part of the tension screw, a first inner annular groove is arranged on the inner side of the upper part of the first compression cylinder corresponding to the position of the mounting holes, the piston ring is arranged in the first inner annular groove, the steel ball with the inner end positioned in the upper joint is arranged in the mounting holes, a pressing ring table is arranged on the outer side of the lower end of the tension screw corresponding to the position below the mounting holes, a mounting cavity which penetrates up and down is arranged on the tension screw, a second inner annular groove is arranged on the inner side of the lower end of the tension screw, a first outer annular groove is arranged on the outer side of the lower end of the tension bolt corresponding to the tension nut, a limit disc is arranged on the outer side of the tension bolt corresponding to the position between the upper end of the first outer annular groove and the first inner annular groove, a third inner annular groove is arranged on the outer side of the upper side of the tension screw corresponding to the lower end of the tension screw, a third pressing plate is arranged on the outer side of the tension screw corresponding to the lower end of the tension screw, and a third pressing ring groove is arranged on the lower side of the tension plate corresponding to the lower end of the tension nut.
7. The anti-collision instrument for while-drilling detection based on the magnetostatic measurement principle according to claim 1, 2, 3 or 6, wherein the first connecting component comprises a first framework connector, a first rubber shock-absorbing joint, a first connector gland and a first Ramer connector seat, the inner side of the lower end of the second compression-resistant cylinder is provided with the first framework connector which is installed together with the second circuit board framework, the lower end of the first framework connector is inserted into the first rubber shock-absorbing joint through interference fit, the outer side of the lower end of the first rubber shock-absorbing joint is fixedly provided with the first connecting gland, and the inner side of the lower end of the first connecting gland is limited and provided with the first Ramer connector seat of which the upper end is positioned in the first connecting gland; the second connecting assembly comprises a second framework connector, a second rubber shock absorption joint, a second connector gland and a second Ramer connector seat, the second framework connector which is installed together with a third circuit board framework is arranged on the inner side of the lower end of the third compression-resistant cylinder, the lower end of the second framework connector is inserted into the second rubber shock absorption joint through interference fit, the second connecting gland is fixedly installed on the outer side of the lower end of the second rubber shock absorption joint, and the second Ramer connector seat with the upper end located in the second connecting gland is limited and installed on the inner side of the lower end of the second connecting gland.
8. The anti-collision instrument for while-drilling detection based on the magnetostatic measurement principle according to claim 4, wherein the first connecting component comprises a first framework connector, a first rubber shock absorption joint, a first connector gland and a first Ramer connector seat, the inner side of the lower end of the second compression cylinder is provided with the first framework connector which is installed together with the second circuit board framework, the lower end of the first framework connector is inserted into the first rubber shock absorption joint through interference fit, the outer side of the lower end of the first rubber shock absorption joint is fixedly provided with the first connecting gland, and the inner side of the lower end of the first connecting gland is limited and provided with the first Ramer connector seat of which the upper end is positioned in the first connecting gland; the second connecting assembly comprises a second framework connector, a second rubber shock absorption joint, a second connector gland and a second Ramer connector seat, the second framework connector which is installed together with a third circuit board framework is arranged on the inner side of the lower end of the third compression-resistant cylinder, the lower end of the second framework connector is inserted into the second rubber shock absorption joint through interference fit, the second connecting gland is fixedly installed on the outer side of the lower end of the second rubber shock absorption joint, and the second Ramer connector seat with the upper end located in the second connecting gland is limited and installed on the inner side of the lower end of the second connecting gland.
9. The anti-collision instrument for while-drilling detection based on the magnetostatic measurement principle according to claim 5, wherein the first connecting component comprises a first framework connector, a first rubber shock absorption joint, a first connector gland and a first Ramer connector seat, the inner side of the lower end of the second compression cylinder is provided with the first framework connector which is installed together with the second circuit board framework, the lower end of the first framework connector is inserted into the first rubber shock absorption joint through interference fit, the outer side of the lower end of the first rubber shock absorption joint is fixedly provided with the first connecting gland, and the inner side of the lower end of the first connecting gland is limited and provided with the first Ramer connector seat of which the upper end is positioned in the first connecting gland; the second connecting assembly comprises a second framework connector, a second rubber shock absorption joint, a second connector gland and a second Ramer connector seat, the second framework connector which is installed together with a third circuit board framework is arranged on the inner side of the lower end of the third compression-resistant cylinder, the lower end of the second framework connector is inserted into the second rubber shock absorption joint through interference fit, the second connecting gland is fixedly installed on the outer side of the lower end of the second rubber shock absorption joint, and the second Ramer connector seat with the upper end located in the second connecting gland is limited and installed on the inner side of the lower end of the second connecting gland.
10. The instrument for detecting and preventing collision while drilling based on the magnetostatic measurement principle according to claim 1 or 2 or 3 or 6 or 8 or 9, further comprising a damping component, wherein the damping component comprises an aluminum clamp gasket, an upper damping gasket, a metal gasket and a lower damping gasket, the upper end of the upper joint is provided with the aluminum clamp gasket with the lower end positioned in the upper joint, and the upper side of the aluminum clamp gasket is fixedly provided with the upper damping gasket, the metal gasket and the lower damping gasket from top to bottom in sequence; or/and, the device also comprises a centralizer rib plate, and the outer side of the middle part of the centralizing joint is fixedly provided with the centralizer rib plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111366411.9A CN116136170A (en) | 2021-11-18 | 2021-11-18 | Anti-collision instrument for while-drilling detection based on magnetostatic measurement principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111366411.9A CN116136170A (en) | 2021-11-18 | 2021-11-18 | Anti-collision instrument for while-drilling detection based on magnetostatic measurement principle |
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| CN116136170A true CN116136170A (en) | 2023-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111366411.9A Pending CN116136170A (en) | 2021-11-18 | 2021-11-18 | Anti-collision instrument for while-drilling detection based on magnetostatic measurement principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658154A (en) * | 2023-08-01 | 2023-08-29 | 河北赛维石油设备有限公司 | Driving nipple for wireless inclinometer while drilling |
-
2021
- 2021-11-18 CN CN202111366411.9A patent/CN116136170A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116658154A (en) * | 2023-08-01 | 2023-08-29 | 河北赛维石油设备有限公司 | Driving nipple for wireless inclinometer while drilling |
| CN116658154B (en) * | 2023-08-01 | 2023-09-22 | 河北赛维石油设备有限公司 | Driving nipple for wireless inclinometer while drilling |
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