CN106121631B - High-temperature-resistant micro-inertia continuous inclination survey device for deep drilling exploration - Google Patents
High-temperature-resistant micro-inertia continuous inclination survey device for deep drilling exploration Download PDFInfo
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- CN106121631B CN106121631B CN201610664945.2A CN201610664945A CN106121631B CN 106121631 B CN106121631 B CN 106121631B CN 201610664945 A CN201610664945 A CN 201610664945A CN 106121631 B CN106121631 B CN 106121631B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Abstract
The invention discloses a high-temperature-resistant micro-inertia continuous inclination measuring device for deep drilling, wherein the lower end of a central hole of a pressure-resistant outer pipe of a component part is connected with a first adapter, and the upper end part of the first adapter is connected with a first heat absorber through a first metal heat insulator; the upper end part of the first heat absorption body is connected with the lower part of the second adapter, the lower part of a central hole of the component mounting shell is provided with three mutually vertical miniature quartz vibration gyroscopes, and the upper part of the central hole of the component mounting shell is provided with three mutually vertical accelerometers; the upper end of the central hole of the component mounting shell is connected with the lower end of the third adapter, and the upper end of the tri-metal insulator is connected with the lower end of the circuit mounting shell through a connector; the circuit installation shell is provided with a resolving plate, an accelerometer signal processing plate, a gyroscope signal processing plate, a signal transmission plate and a power supply plate. The invention can measure the azimuth angle, the inclination angle and the inclination of any point in the moving process, and can continuously and efficiently measure the azimuth angle, the inclination angle and the inclination in the drilling process.
Description
Technical Field
The invention is mainly used in the field of oil and gas drilling and exploration, and particularly relates to a high-temperature-resistant micro-inertia continuous inclination measuring device for deep drilling.
Background
The drilling precision is controlled in the drilling and exploration process of oil and gas, the drilling process is guaranteed not to deviate from the designed track, the track of the well in the drilling process needs to be measured, the inclination measurement is adopted in the industrial drilling and exploration of oil and gas, the drilling efficiency can be effectively improved, the oil production cost is reduced, the oil production is improved, and the currently commonly adopted measuring tool is the inclination measuring device for drilling.
The existing inclination measuring device adopts two-degree-of-freedom dynamic adjusting gyro, the two-degree-of-freedom dynamic adjusting gyro corresponds to an X axis and a Y axis, and an azimuth angle, an inclination angle and an inclination are measured through the two dynamic adjusting gyro. The main defects of the existing inclination measuring device are as follows:
1. because a two-degree-of-freedom dynamic gyro is adopted, a complete inertial measurement system cannot be formed, so that the azimuth angle, the inclination angle and the inclination of different measurement points can be measured only discontinuously, the measurement is stopped and cannot be carried out in the drilling process, and the measurement can be carried out only once after the measurement is stopped for a long time, so that the measurement efficiency is low, and the continuous measurement cannot be carried out in the drilling process.
2. The power supply and the signal transmission structure of the prior dynamic tuning gyroscope are complex, high in cost and low in reliability.
3. The existing measuring device has poor high temperature resistance and cannot ensure reliable and continuous work at 200 ℃.
4. The dynamic tuning gyro has poor impact resistance, so that the measuring device cannot be ensured to have good impact resistance, the overall compression-resistant design is influenced due to the large volume of the dynamic tuning gyro, the dynamic tuning gyro cannot bear the working environment of more than 120MPa, and the dynamic tuning gyro is easy to damage, so that the service life of the measuring device is short.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant micro-inertia continuous inclination measuring device for deep drilling, which has high-temperature resistance and high-pressure resistance and is used for continuously and efficiently measuring an azimuth angle, an inclination angle and an inclination angle in the drilling process.
The technical scheme of the invention is as follows: the utility model provides a deep drilling surveys little inertia of anti high temperature and surveys device in succession which characterized in that: the device comprises a pressure-resistant outer tube (1) of a component part and a closed joint, wherein the lower end of a center hole of the pressure-resistant outer tube (1) of the component part is connected with a first rotary joint (2) and is sealed by an O-shaped ring on the outer circular surface of the first rotary joint (2), and the upper end part of the first joint is connected with a first heat absorbing body (4) through a first metal heat insulator (3); the upper end part of the first heat absorber (4) is connected with the lower part of a second adapter (5), the upper part of the second adapter is connected with the lower end part of a central hole of a component mounting shell (6), and the component mounting shell (6) is arranged in the central hole of the pressure-resistant outer tube (1) of the component part; the lower part of the central hole of the component mounting shell (6) is provided with three mutually vertical miniature quartz vibration gyroscopes (7), and the three miniature quartz vibration gyroscopes (7) respectively correspond to an X axis, a Y axis and a Z axis of a coordinate system; the upper part of the central hole of the component mounting shell (6) is provided with three mutually vertical accelerometers (8), the three accelerometers respectively correspond to an X axis, a Y axis and a Z axis of a coordinate system and correspond to the three miniature quartz vibration gyroscopes (7) one by one, and the miniature quartz vibration gyroscopes (7) and the accelerometers (8) are matched to form a micro-inertia measuring unit which can measure the azimuth angle, the inclination angle and the inclination of any point in the continuous moving process; the upper end of a center hole of the component mounting shell (6) is connected with the lower end of a third adapter (9), the upper end of the third adapter is in contact with the lower end of a second metal heat insulator (10) through a second heat absorber (50), the upper end of the second metal heat insulator and the upper end of the center hole of the component part pressure-resistant outer pipe (1) are fixed to the lower portion of a fourth adapter (11) at the same time, and the lower portion of the fourth adapter (11) is sealed with the component part pressure-resistant outer pipe (1) through an O-shaped ring on the outer circular surface; the upper part of the fourth adapter (11) is simultaneously fixed with the lower end of the third metal heat insulator (12) and the lower end of a central hole of the circuit part pressure-resistant outer pipe (13), and the upper part of the fourth adapter (11) is sealed with the circuit part pressure-resistant outer pipe (13) through an O-shaped ring on the outer circular surface;
the upper end of the third metal heat insulator (12) is connected with the lower end of a circuit mounting shell (15) through a third heat absorber (14), the three components are all arranged in an inner tube (16) of a component part, and the inner tube of the component part is coaxially arranged in the pressure-resistant outer tube (1) of the component part; a resolving plate (17), an accelerometer signal processing plate (18), a gyroscope signal processing plate (19), a signal transmission plate (20) and a power supply plate (21) are arranged on the circuit mounting shell (15); the upper end of the circuit mounting shell (15) is connected with the lower end of a fourth metal heat insulator (100) through a fourth heat absorber (23), the fourth heat absorber and the fourth metal heat insulator are both arranged in the component part inner pipe (16), and the upper end of the fourth metal heat insulator (100) is fixedly connected with the upper end part of a central hole of the circuit part pressure-resistant outer pipe (13) through a plunger (24);
the closed joint is arranged at the upper end of a central hole of the circuit part pressure-resistant outer pipe (13) and is sealed with the circuit part pressure-resistant outer pipe (13) through O-shaped ring sealing.
In the technical scheme, the micro quartz vibration gyroscope and the accelerometer are purchased parts which are matched to form a micro inertial measurement unit, and the technology for measuring the azimuth angle, the inclination angle and the inclination of any point in the continuous moving process is the prior art through a strapdown inertial navigation algorithm and according to the physical definition of well track parameters, is generally used in the navigation and guidance field of airplanes or aviation weapons at present, and is not applied to the field of drilling and surveying in the prior art. After the technology is adopted, the azimuth angle, the inclination angle and the inclination of any point can be measured in the continuous moving process, so that the measurement efficiency can be greatly improved, and continuous measurement can be carried out in the drilling process. Meanwhile, the micro-inertia system integration technology is applied to encapsulate the micro-quartz vibration gyroscope, the accelerometer, the resolving board, the accelerometer signal processing board, the gyroscope signal processing board, the signal transmission board and the power supply board in a sealed environment, so that the micro-inertia system integrated circuit can resist high-voltage and high-temperature environments and can continuously work for several hours at the high temperature of more than 200 ℃, and therefore the shock resistance and the pressure resistance of the micro-inertia system integrated circuit are greatly improved, and the service life of the micro-inertia system integrated circuit is prolonged.
As an important optimization of the invention, the closed joint comprises an outlet joint (25) and a nut (33), wherein the lower end part of the outlet joint (25) is connected with the upper end of the central hole of the circuit part pressure-resistant outer pipe (13) and is sealed by an O-shaped ring; an upper insulating sleeve (26), a middle insulating sleeve (27) and a lower insulating sleeve (28) are coaxially and fixedly arranged in a central hole of the wire outlet connector (25), a spring (29) is coaxially arranged in the middle insulating sleeve (27), the upper end of the spring is sleeved outside a small-diameter section at the lower part of the upper conductive connector (30), a step surface in the middle of the upper conductive connector is contacted with the upper insulating sleeve (26), and the small-diameter section at the upper part of the upper conductive connector (30) penetrates through the central hole of the upper insulating sleeve; the lower end of the spring (29) is sleeved outside the small-diameter section at the upper part of the lower conductive joint (31), the step surface of the lower conductive joint is contacted with the upper end surface of the lower insulating sleeve (28), and the small-diameter section at the lower part of the lower conductive joint (31) is sequentially sleeved with an additional insulating sleeve (32) and the nut (33) after passing through the central hole of the lower insulating sleeve (28).
By adopting the structural design, the sealing joint is simple in structure, easy to manufacture, high in reliability, good in practicability and low in cost.
As important optimization of the invention, one end of a closed joint is connected with a single-core armored cable, the other end of the closed joint is connected with a power supply end of a power supply board (21) through a cable, after the power supply board (21) converts a power supply transmitted by the cable into a secondary power supply, a resolving board (17), an accelerometer signal processing board (18), a gyroscope signal processing board (19), a signal transmission board (20), a micro quartz vibration gyroscope (7) and an accelerometer (8) are powered through the power supply board (21), vibration signals collected by the micro quartz vibration gyroscope (7) are connected with a signal input end of the gyroscope signal processing board (19) through the cable for signal processing, acceleration signals collected by the accelerometer (8) are connected with a signal input end of the accelerometer signal processing board (18) through the cable for signal processing, a signal output end of the accelerometer signal processing board (18) and a signal output end of the gyroscope signal processing board (19) are connected with a signal input end of the resolving board (17) for signal resolving, a signal output end of the resolving board (17) is connected with a signal transmission board (20) through the cable, and a signal output end of the signal transmission board (20) is connected with a data transmission circuit for data transmission.
By adopting the circuit design, other processing boards and sensors are powered through the power panel, the safe and stable operation of the electric control equipment in the device is ensured, and meanwhile, signals are transmitted to the ground equipment through the closed joint to carry out detection operation.
As an important preferred aspect of the present invention, the data transmission circuit includes: the serial input signal transmitted by the signal transmission plate (20) is connected with the signal input end of the modulation circuit, the modulation circuit is connected with the frequency reference circuit to perform frequency phase modulation, the output end of the modulation circuit is connected with the signal input end of the signal driving unit, the signal output end of the signal driving unit is connected with the signal coupling unit, and the signal output end of the signal coupling unit transmits the signal to the serial data receiving unit through the single-core armored cable.
As an important preferred aspect of the present invention, the data transmission circuit includes:
the serial data input end is connected with one end of a first resistor, the other end of the first resistor is connected with the input end of a first D-type trigger, one end of a seventeenth capacitor is grounded, the other end of the seventeenth capacitor is respectively connected with one end of a sixth resistor and one end of a first crystal oscillator, one end of the first crystal oscillator is also connected with the clock input end of a first frequency divider, the other end of the sixth resistor is respectively connected with one end of an eighteenth capacitor and the other end of the first crystal oscillator, the other end of the seventeenth capacitor is grounded, the output end of the first frequency divider is connected with the clock end of the first D-type trigger, the output end of the first D-type trigger is connected with the first input end of a NOR gate, the output end of the first NOR gate is connected with the input end of a multiplexer A0, the second input end of the first NOR gate is connected with the output end of the first frequency divider, one end of the first capacitor and the twelfth capacitor are grounded after being connected in parallel, the other end of the first capacitor and the twelfth capacitor are respectively connected with the input end of a power end and the multiplexer, one end of the second capacitor and the other end of the underground single-core field effect transistor, one end of the first single-effect transistor is connected with the drain electrode of the first single-field effect transistor, one end of the first single-field effect transistor is connected with the first single-effect transistor, one end of the first single-field effect transistor.
By adopting the circuit design, the invention realizes impedance transformation on the cable by connecting the resistors R4 and U4 in series on the single-core cable, and forces the current on the cable to change along with the change of the impedance, thereby achieving the aim of signal coupling.
As an important optimization of the invention, one end of the closed joint is connected with a single-core armored cable, the single-core armored cable is connected with ground power supply equipment, and the ground power supply equipment is connected with a data receiving circuit to perform data receiving operation through the data receiving circuit.
By adopting the circuit design, the single-core armored cable is used for connecting the closed joint and the ground power supply equipment, and the data transmission is stable and reliable.
As an important preferred aspect of the present invention, the data receiving circuit includes:
the ground power supply equipment supplies power to the underground instrument through a primary coil of a transformer and a single-core armored cable, a signal on a power line coupled out by a secondary coil of the transformer is connected to a frequency selection amplifier, a signal output end of a frequency selection amplifying circuit is connected with a signal input end of a demodulation circuit, the demodulation circuit is connected with a frequency reference circuit to perform frequency phase demodulation, and an output end of the demodulation circuit is transmitted to a control terminal through a serial data output end.
As an important preferred aspect of the present invention, the data receiving circuit includes: the transformer is connected with a seventy-first resistor in parallel, one end of the seventy-first resistor is connected with one end of a seventy-second resistor, the other end of the seventy-second resistor is respectively connected with one end of a seventy-fourth resistor and one end of a fifty-third capacitor, the other end of the seventy-fourth resistor is respectively connected with one end of a fifty-second capacitor and the positive input end of a first operational amplifier, the other end of the fifty-third capacitor is respectively connected with one end of a fifteenth resistor and the output end of the first operational amplifier, the other end of the fifteenth resistor is respectively connected with the negative pole of an eighteenth diode and the positive pole of a nineteenth diode, the positive pole of the eighteenth diode is connected with the negative pole of the nineteenth diode, the positive pole of the nineteenth diode is connected with one end of a sixteenth capacitor, the other end of the sixteenth capacitor is respectively connected with the positive input end of a second operational amplifier and one end of a nineteenth resistor, the other end of the nineteenth resistor is grounded, the negative input end of the second operational amplifier is respectively connected with one end of a sixteenth resistor and one end of a seventy-eighth resistor, the other end of the sixteenth resistor is grounded, the other end of the seventeenth resistor is respectively connected with the output end of the second operational amplifier and one end of the seventeenth resistor, the other end of the seventeenth resistor is respectively connected with one end of the seventeenth resistor and the positive input end of the third operational amplifier, the other end of the seventeenth resistor is respectively connected with one end of the seventeenth resistor, the other end of the seventeenth resistor is grounded, the other end of the twelfth resistor is respectively connected with the negative pole of the fifth diode and the negative pole of the third diode, the positive pole of the fifth diode is grounded, the positive pole of the third diode is grounded, the other end of the twelfth resistor is also connected with the positive input end of the fourth operational amplifier, the output end of the fourth operational amplifier is connected with the input end of the first NOT-gate, and the output end of the first NOT-gate is respectively connected with the reset end of the second divider and the input end of the second NOT-gate, the output end of the second not gate is connected with the output end of the second D-type trigger and the reset end of the third frequency divider respectively, the clock control end of the second frequency divider is connected with the second crystal oscillator in parallel, the clock control end of the third frequency divider is also connected with the second crystal oscillator in parallel, one end of the second crystal oscillator is connected with one end of a fifty-eight capacitor and one end of a seventy-five resistor respectively, the other end of the fifty-eight capacitor is grounded, the other end of the seventy-five resistor is connected with one end of a fifty-nine capacitor and the clock input end of the second frequency divider respectively, the other end of the fifty-nine capacitor is grounded, the output end of the second frequency divider is connected with the input end of a first NAND gate, the output end of the first NAND gate is connected with the 2 input end of the second NOR gate, the output end of the third frequency divider is connected with the input end of a second NAND gate, the output end of the second NAND gate is connected with the input end of the second NOR gate, the output end of the second D-type trigger is connected with the clock end of the serial data trigger and sent to the control terminal.
By adopting the circuit design, the circuit judges the level states of two adjacent waveforms in the modulation wave by utilizing the counting reset function of U13 and U14, when the two adjacent waveforms are inconsistent, the output keeps the logic level unchanged, and when the two adjacent waveforms are consistent, the output level state is changed, so that the restored original serial data is obtained.
Preferably, the accelerometer (8) is a quartz vibration accelerometer, so that the measurement accuracy is higher, and the vibration resistance is higher.
Has the beneficial effects that: the invention has the following advantages:
1. the invention can measure the azimuth angle, the inclination angle and the inclination of any point in the moving process, and can continuously and efficiently measure the azimuth angle, the inclination angle and the inclination in the drilling process;
2. the invention has strong high temperature resistance, and can well ensure reliable and continuous work in the environment of 200 ℃;
3. the scheme adopts the miniature quartz vibration gyroscope with strong shock resistance and combines with the pressure-resistant outer tube, so that the pressure resistance and shock resistance of the invention can be greatly improved, and the service life of the invention can be prolonged.
Drawings
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a schematic view of the portion above the double fold line in fig. 1.
Fig. 3 is a schematic view of the lower portion of the double fold line in fig. 1.
Fig. 4 is a partially enlarged view of a portion B in fig. 2.
Fig. 5 is an overall circuit diagram of the present invention.
Fig. 6 is a schematic diagram of a transmission circuit of the present invention.
Fig. 7 is a schematic diagram of a receiving circuit of the present invention.
FIG. 8 is a schematic diagram of the logic circuit of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1, 2, 3 and 4, the deep drilling high temperature resistant micro-inertia continuous inclination measuring device mainly comprises a component part pressure resistant outer tube 1, a component mounting shell 6, a circuit mounting shell 15, a component part inner tube 16 and the like. The lower end of a central hole of the pressure-resistant outer tube 1 of the component part is connected with the first adapter 2 and is sealed through an O-shaped ring on the outer circular surface of the first adapter 2. A guide head is coaxially connected to the lower part of the first adapter 2 through a screw thread, and the upper end of the first adapter 2 is connected to a first heat absorber 4 through a first metal heat insulator 3.
The upper end of the first heat absorber 4 is connected with the lower part of the second adapter 5, the upper part of the second adapter 5 is connected with the lower end of the central hole of the component mounting shell 6, and the component mounting shell 6 is arranged in the central hole of the component part pressure-resistant outer tube 1. The lower part of the central hole of the component mounting shell 6 is provided with three mutually vertical miniature quartz vibration gyroscopes 7, and the three miniature quartz vibration gyroscopes 7 respectively correspond to an X axis, a Y axis and a Z axis of a coordinate system. The upper part of the central hole of the component mounting shell 6 is provided with three mutually vertical accelerometers 8, the accelerometers 8 are micro mechanical accelerometers, the three accelerometers 8 respectively correspond to an X axis, a Y axis and a Z axis of a coordinate system and correspond to three micro quartz vibration gyroscopes 7 one by one, the micro quartz vibration gyroscopes 7 and the accelerometers 8 are matched to form a micro inertial measurement unit, and the azimuth angle, the inclination angle and the inclination of any point can be measured in the continuous moving process by matching through a strapdown inertial navigation algorithm and according to the physical definition of well track parameters. It should be noted in particular that the micro-quartz vibration gyroscope 7 and the accelerometer 8 are commercially available components, and that the technology for measuring the azimuth angle, the inclination angle and the inclination of any point in the continuous movement process is the prior art and is currently generally used in the field of navigation and guidance of airplanes or aeronautical weapons. In the present case, the accelerometer 8 is a quartz vibration accelerometer with good performance, and certainly, a micro-electromechanical accelerometer with slightly poor performance can also be used.
As shown in fig. 1, 2, 3 and 4, the upper end of the central hole of the component mounting case 6 is connected to the lower end of a third adapter 9, the upper end of the third adapter 9 is in contact with the lower end of a second metal insulator 10 through a second heat absorber 50, the upper end of the second metal insulator and the upper end of the central hole of the component part pressure-resistant outer tube 1 are simultaneously fixed to the lower part of a fourth adapter 11, and the lower part of the fourth adapter 11 is sealed with the component part pressure-resistant outer tube 1 through an O-ring on the outer circumferential surface; the upper part of the fourth adapter 11 is fixed with the lower end of the third metal heat insulator 12 and the lower end of the central hole of the circuit part pressure-resistant outer pipe 13 at the same time, and the upper part of the fourth adapter 11 is sealed with the circuit part pressure-resistant outer pipe 13 through an O-shaped ring on the outer circular surface;
the upper end of a third metal heat insulator 12 is connected with the lower end of a circuit installation shell 15 through a third heat absorber 14, and the three components are all arranged in an inner tube 16 of a component part which is coaxially arranged in an outer pressure-resistant tube 1 of the component part; the circuit mounting shell 15 is provided with a resolving plate 17, an accelerometer signal processing plate 18, a gyroscope signal processing plate 19, a signal transmission plate 20 and a power supply plate 21; the upper end of the circuit mounting shell 15 is connected with the lower end of a fourth metal heat insulator 100 through a fourth heat absorber 23, the fourth heat absorber and the fourth metal heat insulator are both arranged in the component part inner pipe 16, and the upper end of the fourth metal heat insulator 100 is fixedly connected with the upper end part of the central hole of the circuit part pressure-resistant outer pipe 13 through a plunger 24;
the closing joint is mounted on the upper end of the center hole of the circuit part pressure-resistant outer tube 13 and is sealed with the circuit part pressure-resistant outer tube 13 by O-ring sealing. The sealing joint is arranged at the upper end of a central hole of the pressure-resistant outer tube 1 of the component part and is sealed with the pressure-resistant outer tube 1 of the component part through O-shaped ring sealing, so that the miniature quartz vibration gyroscope 7, the accelerometer 8, the resolving plate 17, the accelerometer signal processing plate 18, the gyroscope signal processing plate 19, the signal transmission plate 20 and the power supply plate 21 are sealed in a sealed environment, the high-pressure and high-temperature resistant environment can be achieved, and continuous working can be carried out for several hours at a high temperature of more than 200 ℃.
Preferably, the closed joint comprises a wire outlet joint 25 and a nut 33, wherein the lower end part of the wire outlet joint 25 is connected with the upper end of the central hole of the circuit part pressure-resistant outer tube 13 and is sealed by an O-shaped ring on the outer circular surface of the wire outlet joint 25. An upper insulating sleeve 26, a middle insulating sleeve 27 and a lower insulating sleeve 28 are coaxially and fixedly arranged in a central hole of the outlet connector 25, a spring 29 is coaxially arranged in the middle insulating sleeve 27, the upper end of the spring is sleeved outside a small-diameter section at the lower part of an upper conductive connector 30, a step surface in the middle of the upper conductive connector is contacted with the upper insulating sleeve 26, and the small-diameter section at the upper part of the upper conductive connector 30 penetrates through the central hole of the upper insulating sleeve. The lower end of the spring 29 is sleeved outside the small-diameter section at the upper part of the lower conductive joint 31, the step surface of the lower conductive joint is contacted with the upper end surface of the lower insulating sleeve 28, and the small-diameter section at the lower part of the lower conductive joint 31 penetrates through the central hole of the lower insulating sleeve 28 and is sequentially sleeved with an additional insulating sleeve 32 and a nut 33.
The lower end of the lower conductive connector 31 supplies power to the resolving plate 17, the accelerometer signal processing plate 18, the gyroscope signal processing plate 19, the signal transmission plate 20, the power supply plate 21, the miniature quartz vibration gyroscope 7 and the accelerometer 8 through cables, and transmits detection signals of the miniature quartz vibration gyroscope 7 and the accelerometer 8. The upper end of the upper conductive contact 30 is connected with a power supply device through a cable when in use, supplies power to the lower conductive contact 31, and receives detection signals of the micro quartz vibration gyroscope 7 and the accelerometer 8.
As shown in FIG. 5, the signal end of the downhole instrument detection sensor is connected with the serial data transmitting unit through the serial data input end, the serial data transmitting unit performs data interaction with the serial data receiving unit through the single-core armored cable, and the data are transmitted to the control terminal through the serial data receiving unit. The underground instrument in the figure is the micro-inertia continuous inclination measuring device.
The beneficial effects of the above technical scheme are: the single-core armored cable power supply and real-time data transmission device is applied to the power supply and real-time data transmission of the deep drilling high-temperature-resistant micro-inertia continuous inclinometer. And by combining with ground receiving equipment, the parameter information in the well measured by the observation instrument can be realized.
As shown in fig. 6, the serial data transmission unit includes:
the serial data input end is connected with the modulation circuit, the modulation circuit is connected with the frequency reference circuit to perform frequency phase modulation, the output end of the modulation circuit is connected with the signal input end of the signal driving unit, the signal output end of the signal driving unit is connected with the signal coupling unit, and the signal output end of the signal coupling unit transmits signals to the serial data receiving unit through the single-core armored cable.
The serial data input end is connected with one end of a first resistor, the other end of the first resistor is connected with the input end of a first D-type trigger, one end of a seventeenth capacitor is grounded, the other end of the seventeenth capacitor is respectively connected with one end of a sixth resistor and one end of a first crystal oscillator, one end of the first crystal oscillator is also connected with the clock input end of a first frequency divider, the other end of the sixth resistor is respectively connected with one end of an eighteenth capacitor and the other end of the first crystal oscillator, the other end of the seventeenth capacitor is grounded, the output end of the first frequency divider is connected with the clock end of a first D-type trigger, the output end of the first D-type trigger is connected with the first input end of a NOR gate, the output end of the first NOR gate is connected with the input end of a multiplexer A0, the second input end of the first NOR gate is connected with the output end of the first frequency divider, one end of the first capacitor and the twelfth capacitor are grounded after being connected in parallel, the first capacitor and the twelfth capacitor are respectively connected in parallel, the other end of the first capacitor and the multiplexer input end after being connected in parallel, one end of the second capacitor and the thirteenth capacitor, one end of the second capacitor is connected in parallel, the second capacitor, one end of the second resistor is connected with the input end of a multiplexing cable, one end of a third resistor, one end of a source of a fourth resistor, one of a drain of a single-core field effect transistor, one source of a single-field effect transistor is connected with a single-field effect transistor, and a source of a single-effect transistor.
The beneficial effects of the above technical scheme are: the invention adopts the technical scheme that resistors R4 and U4 are connected in series on a single-core cable to realize impedance transformation on the cable, so that the current on the cable is forced to change along with the change of impedance, and the aim of signal coupling is fulfilled.
As shown in fig. 7 and 8, the serial data receiving unit includes: the ground power supply equipment supplies power to the underground instrument through a primary coil of a transformer and a single-core armored cable, a signal on a power line coupled out by a secondary coil of the transformer is connected to a frequency selection amplifier, a signal output end of a frequency selection amplifying circuit is connected with a signal input end of a demodulation circuit, the demodulation circuit is connected with a frequency reference circuit to perform frequency phase demodulation, and an output end of the demodulation circuit is transmitted to a control terminal through a serial data output end.
The transformer is connected with a seventy-first resistor in parallel, one end of the seventy-first resistor is connected with one end of a seventy-second resistor, the other end of the seventy-second resistor is respectively connected with one end of a seventy-fourth resistor and one end of a fifty-third capacitor, the other end of the seventy-fourth resistor is respectively connected with one end of a fifty-second capacitor and the positive input end of a first operational amplifier, the other end of the fifty-third capacitor is respectively connected with one end of a fifteenth resistor and the output end of the first operational amplifier, the other end of the fifteenth resistor is respectively connected with the negative pole of an eighteenth diode and the positive pole of a nineteenth diode, the positive pole of the eighteenth diode is connected with the negative pole of a nineteenth diode, the positive pole of the nineteenth diode is connected with one end of a sixteenth capacitor, the other end of the sixteenth capacitor is respectively connected with the positive input end of the second operational amplifier and one end of the nineteenth resistor, the other end of the nineteenth resistor is grounded, the negative input end of the second operational amplifier is respectively connected with one end of the sixteenth resistor and one end of the seventy-eighth resistor, the other end of the sixteenth resistor is grounded, the other end of the seventeenth resistor is respectively connected with the output end of the second operational amplifier and one end of the seventeenth resistor, the other end of the seventeenth resistor is respectively connected with one end of the seventeenth resistor and the positive input end of the third operational amplifier, the other end of the seventeenth resistor is respectively connected with one end of the seventeenth resistor, the other end of the seventeenth resistor is grounded, the other end of the twelfth resistor is respectively connected with the negative pole of the fifth diode and the negative pole of the third diode, the positive pole of the fifth diode is grounded, the positive pole of the third diode is grounded, the other end of the twelfth resistor is also connected with the positive input end of the fourth operational amplifier, the output end of the fourth operational amplifier is connected with the input end of the first NOT-gate, and the output end of the first NOT-gate is respectively connected with the reset end of the second divider and the input end of the second NOT-gate, the output end of the second NOR gate is connected with the output end of a second D-type flip-flop and the reset end of a third frequency divider respectively, the clock control end of the second frequency divider is connected with a second crystal oscillator in parallel, the clock control end of the third frequency divider is also connected with the second crystal oscillator in parallel, one end of the second crystal oscillator is connected with one end of a fifty-eighth capacitor and one end of a seventy-five resistor respectively, the other end of the fifty-eighth capacitor is grounded, the other end of the seventy-five resistor is connected with one end of a fifty-ninth capacitor and the clock input end of the second frequency divider respectively, the other end of the fifty-ninth capacitor is grounded, the output end of the second frequency divider is connected with the input end of a first NAND gate, the output end of the first NAND gate is connected with the input end of a second NOR gate 2, the output end of the third frequency divider is connected with the input end of a second NAND gate, the output end of the second NAND gate is connected with the input end of a second NOR gate 1, the output end of the second D-type flip-gate is connected with the clock end of the second D-type flip-flop, the output end of the second D-type flip-flop is connected with a serial data output end, and the second D flip-flop is sent to the control terminal.
The beneficial effects of the above technical scheme are: the circuit judges the level states of two adjacent waveforms in the modulation wave by using the counting reset function of U13 and U14, when the two waveforms are inconsistent, the output keeps the logic level unchanged, and when the two waveforms are consistent, the output level state is changed, so that the restored original serial data is obtained.
1. The invention is used for the data transmission function of the armored single-core cable of the deep-drilling high-temperature-resistant micro-inertia continuous inclinometer, and is also suitable for the environment of petroleum logging instrument equipment powered by other armored single-core cables.
2. The circuit is divided into an underground probe signal sending circuit and a ground instrument receiving circuit. The system composition principle block diagram is shown in fig. 7:
the schematic diagram of the signal transmitting circuit is shown in fig. 5, and the schematic diagram of the receiving circuit is shown in fig. 6 and 7. The traditional signal transmission coupling adopts the mode that push-pull power is output and then is coupled to a power supply single-core cable through a blocking capacitor made of special materials, the invention adopts the mode that resistors R4 and U4 are connected in series on the single-core cable to realize impedance transformation on the cable, and the current on the cable is forced to change along with the change of the impedance, so that the aim of signal coupling is fulfilled.
The signal transmission circuit: a2.4576 MHz crystal oscillator output signal is subjected to frequency division for 512 times through 74LS4060 to obtain a 4800Hz reference carrier wave, 1200bps data sent by serial data is subjected to modulated waveform (see figure 7) through a D trigger (74 LS 74), and the modulated waveform drives cable differential pressure on an armored cable through U3 and U4, so that the current of the armored cable is changed, and the purpose of signal uploading is achieved.
A serial data receiving circuit: and (3) receiving the alternating current signal on the armored cable by using T1, demodulating a TTL logic level by using a low-pass filter and a hysteresis comparator which are composed of operational amplifiers U10 and U3, and sending the TTL logic level into demodulation circuits composed of U12, U13, U14, U16 and U17 respectively for signal restoration. The circuit judges the level states of two adjacent waveforms in the modulation wave by using the counting reset function of U13 and U14, when the two waveforms are inconsistent, the output keeps the logic level unchanged, and when the two waveforms are consistent, the output level state is changed, so that the restored original serial data is obtained.
The single-core armored cable power supply and real-time data transmission device is applied to the power supply and real-time data transmission of the deep drilling high-temperature-resistant micro-inertia continuous inclinometer. And by combining with ground receiving equipment, the parameter information in the well measured by the instrument can be observed in real time.
The NOT gate is preferably 74LS04;
the multiplexer is preferably a DG508;
the D-type flip-flop is preferably 74LS74;
the NOR gate is preferably 74LS86;
the nand gate is preferably 74LS08;
the frequency divider is preferably 74LS4060;
the diode is preferably lN4148.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a deep drilling exploration anti high temperature micro inertia continuous deviational survey device which characterized in that: the device comprises a component part pressure-resistant outer pipe (1) and a closed joint, wherein the lower end of a central hole of the component part pressure-resistant outer pipe (1) is connected with a first adapter (2) and is sealed by an O-shaped ring on the outer circular surface of the first adapter (2), and the upper end part of the first adapter is connected with a first heat-absorbing body (4) by a first metal heat insulator (3); the upper end part of the first heat absorber (4) is connected with the lower part of a second adapter (5), the upper part of the second adapter is connected with the lower end part of a central hole of a component mounting shell (6), and the component mounting shell (6) is arranged in the central hole of the pressure-resistant outer tube (1) of the component part; the lower part of the central hole of the component mounting shell (6) is provided with three mutually vertical miniature quartz vibration gyroscopes (7), and the three miniature quartz vibration gyroscopes (7) respectively correspond to an X axis, a Y axis and a Z axis of a coordinate system; the upper part of the central hole of the component mounting shell (6) is provided with three accelerometers (8) which are vertical to each other, the three accelerometers correspond to an X axis, a Y axis and a Z axis of a coordinate system respectively and correspond to the three miniature quartz vibration gyroscopes (7) one to one, and the miniature quartz vibration gyroscopes (7) and the accelerometers (8) are matched to form a micro-inertia measuring unit which can measure the azimuth angle, the inclination angle and the inclination of any point in the continuous moving process; the upper end of a central hole of the component mounting shell (6) is connected with the lower end of a third adapter (9), the upper end of the third adapter is contacted with the lower end of a second metal heat insulator (10) through a second heat absorber (50), the upper end of the second metal heat insulator and the upper end of the central hole of the component part pressure-resistant outer tube (1) are simultaneously fixed with the lower part of a fourth adapter (11), and the lower part of the fourth adapter (11) is sealed with the component part pressure-resistant outer tube (1) through an O-shaped ring on the outer circular surface; the upper part of the fourth adapter (11) is simultaneously fixed with the lower end of the third metal heat insulator (12) and the lower end of a central hole of the circuit part pressure-resistant outer pipe (13), and the upper part of the fourth adapter (11) is sealed with the circuit part pressure-resistant outer pipe (13) through an O-shaped ring on the outer circular surface;
the upper end of the third metal heat insulator (12) is connected with the lower end of a circuit mounting shell (15) through a third heat absorber (14), the three components are all arranged in an inner tube (16) of a component part, and the inner tube of the component part is coaxially arranged in the pressure-resistant outer tube (1) of the component part; a resolving plate (17), an accelerometer signal processing plate (18), a gyroscope signal processing plate (19), a signal transmission plate (20) and a power supply plate (21) are arranged on the circuit mounting shell (15); the upper end of the circuit mounting shell (15) is connected with the lower end of a fourth metal heat insulator (100) through a fourth heat absorber (23), the fourth heat absorber and the fourth metal heat insulator are both arranged in the component part inner pipe (16), and the upper end of the fourth metal heat insulator (100) is fixedly connected with the upper end part of a central hole of the circuit part pressure-resistant outer pipe (13) through a plunger (24);
the closed joint is arranged at the upper end of a central hole of the circuit part pressure-resistant outer pipe (13) and is sealed with the circuit part pressure-resistant outer pipe (13) through O-shaped ring sealing;
the closed joint comprises an outlet joint (25) and a nut (33), wherein the lower end part of the outlet joint (25) is connected with the upper end of a central hole of the circuit part pressure-resistant outer pipe (13) and is sealed by an O-shaped ring; an upper insulating sleeve (26), a middle insulating sleeve (27) and a lower insulating sleeve (28) are coaxially and fixedly arranged in a central hole of the wire outlet connector (25), a spring (29) is coaxially arranged in the middle insulating sleeve (27), the upper end of the spring is sleeved outside a small-diameter section at the lower part of the upper conductive connector (30), a step surface at the middle part of the upper conductive connector is contacted with the upper insulating sleeve (26), and the small-diameter section at the upper part of the upper conductive connector (30) penetrates through the central hole of the upper insulating sleeve; the lower end of the spring (29) is sleeved outside the small-diameter section at the upper part of the lower conductive joint (31), the step surface of the lower conductive joint is contacted with the upper end surface of the lower insulating sleeve (28), and the small-diameter section at the lower part of the lower conductive joint (31) is sequentially sleeved with an additional insulating sleeve (32) and the nut (33) after passing through the central hole of the lower insulating sleeve (28);
further comprising: the single-core armored cable is connected to one end of the closed joint, the other end of the closed joint is connected with a power supply end of a power supply board (21) through a cable, after the power supply board (21) converts a power supply transmitted by the cable into a secondary power supply, a resolving board (17) is connected with a signal processing board (18) of an accelerometer, a gyroscope signal processing board (19), a signal transmission board (20), a miniature quartz vibration gyroscope (7) and an accelerometer (8) are powered through the power supply board (21), vibration signals collected by the miniature quartz vibration gyroscope (7) are subjected to signal processing through a signal input end of the cable connection gyroscope signal processing board (19), acceleration signals collected by the accelerometer (8) are subjected to signal processing through a signal input end of the cable connection accelerometer signal processing board (18), a signal output end of the accelerometer signal processing board (18) and a signal output end of the gyroscope signal processing board (19) are connected with a signal input end of the resolving board (17) for signal resolving, a signal output end of the resolving board (17) is connected with a signal input end of the signal transmission board (20), and a signal output end of the signal transmission board (20) is connected with a data transmission circuit through a cable for data transmission.
2. The deep-drilling high-temperature-resistant micro-inertia continuous inclination measurement device according to claim 1, wherein: the data transmission circuit includes: the serial input signal transmitted by the signal transmission plate (20) is connected with the signal input end of a modulation circuit, the modulation circuit is connected with a frequency reference circuit to perform frequency phase modulation, the output end of the modulation circuit is connected with the signal input end of a signal driving unit, the signal output end of the signal driving unit is connected with a signal coupling unit, and the signal output end of the signal coupling unit transmits a signal to a serial data receiving unit through a single-core armored cable.
3. The deep-drilling high-temperature-resistant micro-inertia continuous inclination measurement device according to claim 2, wherein: the data transmission circuit includes:
the serial data input end is connected with one end of a first resistor, the other end of the first resistor is connected with the input end of a first D-type trigger, one end of a seventeenth capacitor is grounded, the other end of the seventeenth capacitor is respectively connected with one end of a sixth resistor and one end of a first crystal oscillator, one end of the first crystal oscillator is also connected with the clock input end of a first frequency divider, the other end of the sixth resistor is respectively connected with one end of an eighteenth capacitor and the other end of the first crystal oscillator, the other end of the seventeenth capacitor is grounded, the output end of the first frequency divider is connected with the clock end of the first D-type trigger, the output end of the first D-type trigger is connected with the first input end of a NOR gate, the output end of the first NOR gate is connected with the input end of a multiplexer A0, the second input end of the first NOR gate is connected with the output end of the first frequency divider, one end of the first capacitor and the twelfth capacitor are grounded after being connected in parallel, the other end of the first capacitor and the twelfth capacitor are respectively connected with the input end of a power end and the multiplexer, one end of the second capacitor and the other end of the underground single-core field effect transistor, one end of the first single-effect transistor is connected with the drain electrode of the first single-field effect transistor, one end of the first single-field effect transistor is connected with the first single-effect transistor, one end of the first single-field effect transistor.
4. The deep-drilling high-temperature-resistant micro-inertia continuous inclination measurement device according to claim 1, wherein: further comprising: one end of the closed joint is connected with a single-core armored cable, the single-core armored cable is connected with ground power supply equipment, the ground power supply equipment is connected with a data receiving circuit, and data receiving operation is carried out through the data receiving circuit.
5. The deep-drilling high-temperature-resistant micro-inertia continuous inclination measurement device according to claim 4, wherein: further comprising: the data receiving circuit includes:
the ground power supply equipment supplies power to the underground instrument through a primary coil of a transformer and a single-core armored cable, a signal on a coupling power line of a secondary coil of the transformer is connected to a frequency-selecting amplifier, a signal output end of a frequency-selecting amplifying circuit is connected with a signal input end of a demodulation circuit, the demodulation circuit is connected with a frequency reference circuit to perform frequency phase demodulation, and an output end of the demodulation circuit is transmitted to a control terminal through a serial data output end.
6. The deep drilling high temperature resistant micro-inertial continuous inclination measurement device according to claim 5, wherein: further comprising:
the data receiving circuit includes: the transformer is connected with a seventy-first resistor in parallel, one end of the seventy-first resistor is connected with one end of a seventy-second resistor, the other end of the seventy-second resistor is respectively connected with one end of a seventy-fourth resistor and one end of a fifty-third capacitor, the other end of the seventy-fourth resistor is respectively connected with one end of a fifty-second capacitor and the positive input end of a first operational amplifier, the other end of the fifty-third capacitor is respectively connected with one end of a fifteenth resistor and the output end of the first operational amplifier, the other end of the fifteenth resistor is respectively connected with the negative pole of an eighteenth diode and the positive pole of a nineteenth diode, the positive pole of the eighteenth diode is connected with the negative pole of a nineteenth diode, the positive pole of the nineteenth diode is connected with one end of a sixteenth capacitor, the other end of the sixteenth capacitor is respectively connected with the positive input end of the second operational amplifier and one end of the nineteenth resistor, the other end of the nineteenth resistor is grounded, the negative input end of the second operational amplifier is respectively connected with one end of the sixteenth resistor and one end of the seventy-eighth resistor, the other end of the sixteenth resistor is grounded, the other end of the seventeenth resistor is respectively connected with the output end of the second operational amplifier and one end of the seventeenth resistor, the other end of the seventeenth resistor is respectively connected with one end of the seventeenth resistor and the positive input end of the third operational amplifier, the other end of the seventeenth resistor is respectively connected with the output end of the third operational amplifier and one end of the twelfth resistor, the negative input end of the third operational amplifier is connected with one end of the seventeenth resistor, the other end of the seventeenth resistor is grounded, the other end of the twelfth resistor is respectively connected with the negative pole of the fifth diode and the negative pole of the third diode, the positive pole of the fifth diode is grounded, the positive pole of the third diode is grounded, the other end of the twelfth resistor is also connected with the positive input end of the fourth operational amplifier, the output end of the fourth operational amplifier is connected with the input end of the first NOT-gate, the output end of the first NOT-gate is respectively connected with the reset end of the second frequency divider and the input end of the second NOT-gate, the output end of the second not gate is connected with the output end of the second D-type trigger and the reset end of the third frequency divider respectively, the clock control end of the second frequency divider is connected with the second crystal oscillator in parallel, the clock control end of the third frequency divider is also connected with the second crystal oscillator in parallel, one end of the second crystal oscillator is connected with one end of a fifty-eight capacitor and one end of a seventy-five resistor respectively, the other end of the fifty-eight capacitor is grounded, the other end of the seventy-five resistor is connected with one end of a fifty-nine capacitor and the clock input end of the second frequency divider respectively, the other end of the fifty-nine capacitor is grounded, the output end of the second frequency divider is connected with the input end of a first NAND gate, the output end of the first NAND gate is connected with the 2 input end of the second NOR gate, the output end of the third frequency divider is connected with the input end of a second NAND gate, the output end of the second NAND gate is connected with the input end of the second NOR gate, the output end of the second D-type trigger is connected with the clock end of the serial data trigger and sent to the control terminal.
7. The deep-drilling high-temperature-resistant micro-inertia continuous inclination measurement device according to claim 1, wherein: the accelerometer (8) is a quartz vibration accelerometer.
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| CN112066922A (en) * | 2020-07-31 | 2020-12-11 | 福建福清核电有限公司 | Batch cable termination risk assessment and control method for DCS transformation |
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| TW574128B (en) * | 2002-11-29 | 2004-02-01 | Lightuning Tech Inc | Thermal bubble type micro-machined inertial sensor |
| US7234540B2 (en) * | 2003-08-07 | 2007-06-26 | Baker Hughes Incorporated | Gyroscopic steering tool using only a two-axis rate gyroscope and deriving the missing third axis |
| CA2658890C (en) * | 2008-03-20 | 2014-09-09 | Precision Energy Services Inc. | Downhole telemetry through multi-conductor wireline |
| CN201865663U (en) * | 2010-06-03 | 2011-06-15 | 西安思坦仪器股份有限公司 | Inertia measurement unit and power tuning gyroscope continuous inclinometry system |
| CN202767974U (en) * | 2012-08-17 | 2013-03-06 | 重庆天箭传感器有限公司 | Dynamically tuned gyro continuous inclinometer |
| CN104389584B (en) * | 2014-09-23 | 2017-02-08 | 北京三孚莱石油科技有限公司 | High-speed continuous gyroscopic inclinometer system |
| CN204677191U (en) * | 2015-03-30 | 2015-09-30 | 北京波特光盛石油技术有限公司 | Inclinometer |
| CN105840180A (en) * | 2016-06-12 | 2016-08-10 | 中国地质科学院探矿工艺研究所 | Ultra-temperature drilling inclinometer |
| CN205936583U (en) * | 2016-08-12 | 2017-02-08 | 重庆天箭惯性科技股份有限公司 | Drill little continuous deviational survey device of inertia of anti high temperature deeply |
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| NO20014170D0 (en) * | 2000-08-29 | 2001-08-28 | Baker Hughes Inc | Measuring-under-drilling assembly using gyroscope devices, and methods for removing deviations |
| WO2011140804A1 (en) * | 2010-08-09 | 2011-11-17 | Wang Tao | Micro inertial measurement system |
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