CN207296995U - A kind of high accuracy Integral wireless measurement-while-drilling system - Google Patents
A kind of high accuracy Integral wireless measurement-while-drilling system Download PDFInfo
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- CN207296995U CN207296995U CN201720649003.7U CN201720649003U CN207296995U CN 207296995 U CN207296995 U CN 207296995U CN 201720649003 U CN201720649003 U CN 201720649003U CN 207296995 U CN207296995 U CN 207296995U
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Abstract
The utility model provides a kind of high-precision Integral wireless measurement-while-drilling system, including ground system, downhole system and underground power supply system, the downhole system includes inserting tube, impulse generator, gamma survey instrument and resistivity measuring instrument, and the inserting tube includes measurement pipe nipple, circuit module；The measurement pipe nipple includes measuring unit and sensor；The ground system includes standpipe pressure sensor, digital treating meter, driller's display, computer software；The downhole system uses the monobus topological structure of signal power source multiplexing；The underground power supply system uses high-power generator 650MWD mandrels.The beneficial effects of the utility model are：The data of the measurement of instrument are more accurate, reliable；Circuit is simple, fast response time；Optimize filter effect.
Description
Technical field
It the utility model is related to wireless drilling measuring system field, and in particular to a kind of high accuracy Integral wireless is surveyed with brill
Amount system.
Background technology
The real-time geology supplemental characteristic that LWD is provided, can help Field Force to monitor the situation of change of geologic parameter at any time,
Accurate judgement is made to the formation variation that will occur.Therefore, orientation parameter measurement sensor is coordinated, in horizontal well drilling
In, LWD can be used to carry out geosteering, accurately control well track to navigate within the optimum bit for being conducive to oil-producing in reservoir
Put, it is effective to avoid oil/gas and oil/water interface.Well yield and reservoir harvesting can be greatly improved using this technology
Rate.But a kind of integration, Integration Design, and high precision wireless measurement-while-drilling system need further to be studied.
The content of the invention
To solve the above-mentioned problems, the utility model provides a kind of high-precision Integral wireless measurement-while-drilling system.
A kind of high accuracy Integral wireless measurement-while-drilling system, including ground system, downhole system and underground power supply used system
System；
The downhole system includes inserting tube, impulse generator, gamma survey instrument and resistivity measuring instrument, and the inserting tube includes
Measure pipe nipple, circuit module；The measurement pipe nipple includes measuring unit and sensor；
The ground system includes standpipe pressure sensor, digital treating meter, driller's display, computer software；
The downhole system uses the monobus topological structure of signal power source multiplexing；
The underground power supply system is used to carry the inserting tube, impulse generator, gamma survey instrument and resistivity measuring instrument electricity
Can, using high-power generator 650MWD mandrels；
The gamma survey instrument uses DS- using directional gamma with geosteering instrument, the resistivity measuring instrument is bored
The more depth electromagnetic resistivity testers of ERC multifrequencies；
Downhole parameters of the sensor for being obtained to measuring unit are pressed by amplification, filtering, A/D conversions, calculating
Encoded according to regulation, produce pulse signal, and output of pulse signal to impulse generator, impulse generator are caused in drill string
Mud pressure signal corresponding change occurs；
The standpipe pressure sensor finds out these mud pressure variations, so that the value of original signal is obtained, then by ground
The digital treating meter of system carries out receiving the decode for signal, is calculated by computer software, by driller's display into
Row real-time display.
Further, the circuit module component is high temperature component.
Further, the more depth electromagnetic resistivity testers of the DS-ERC multifrequencies use 2MHz and 400KHz electromagnetism
Wave frequency section, antenna receive symmetrical compensation antenna structure using four hairs are double.
Further, the sensor is by three gravitational accelerometers, three fluxgates, a temperature sensor structure
Into three gravitational accelerometers and three fluxgates distinguish orthogonal installation.
Further, it is described that impulse generator filtering obtains low frequency according to this by hardware realization active low-pass filter
Mud pulse signal；Further filtering and pulse signal enhanced processing are realized by software.
The utility model has the following advantages compared with prior art：
The utility model eliminates influence of the hole anomaly to measurement data by using symmetrical compensation design principle, disappears
Except the measurement error of instrument electronic circuit itself, make the data of the measurement of instrument more accurate, reliable；Using designed, designed
The monobus topological structure of signal power source multiplexing, the bus structures greatly simplify the machinery between measurement while drilling/logger
And electrical connection, the reliability of overall instrument can be effectively improved；High-power generator 650MWD mandrels, it is in the optimal work of instrument
Make externally export the up to power of 50W in the case of rotating speed 2000r/min, guarantee instrument is gamma, inserting tube, resistivity etc.
Instrument continues high-quality power supply；Pulse signal be highly susceptible in transmitting procedure the external world interference, the utility model by
To in the collection of original signal, obtaining low frequency mud pulse signal according to this with hardware realization active low-pass filter and utilizing
Hardware realization has the advantages that circuit is simple, fast response time, and software realizes further filtering and pulse signal amplification etc.
Reason, signal filtering process is completed by way of software and hardware is combined, optimizes filter effect.
Brief description of the drawings
Fig. 1 is the structural relation figure of the utility model.
Fig. 2 is 8 resistance curve graphs of a relation.
Wherein：1 is downhole system, and 2 be ground system, and 3 be underground power supply system, and 11 be impulse generator, and 12 be inserting tube,
13 be resistivity measuring instrument, and 14 be gamma survey instrument, and 121 be measurement pipe nipple, and 122 be circuit module, and 121-1 is measuring unit,
121-2 is sensor, and 21 be standpipe pressure sensor, and 22 be digital treating meter, and 23 be computer software, and 24 show for driller
Show device.
Embodiment
In order to be better understood from the utility model, with reference to specific embodiments and the drawings to the utility model into advance one
The description of step.
A kind of high accuracy Integral wireless measurement-while-drilling system, including ground system 2, downhole system 1 and say lower power supply
System 3.
The downhole system 1 includes inserting tube 12, impulse generator 11, gamma survey instrument 13 and resistivity measuring instrument 14, institute
Stating inserting tube 12 includes measurement pipe nipple 121 and circuit module 122；The measurement pipe nipple 121 includes measuring unit 121-1 and sensor
121-2；The ground system 2 includes standpipe pressure sensor 21, digital treating meter 22, driller's display 24, computer software
System 23.
The monobus topological structure that the downhole system 1 is multiplexed using signal power source；In measurement while drilling/logger often
The sensor 121-2 and 122 mounting structure of circuit module seen is divided into probe type placed in the middle, skeleton, the exterior cover-plate type of insertion and outer
Drill collar is skeleton, adapts to different sensor 121-2 measuring principles and volume size requirement, DS-MWD/LWD downhole systems respectively
The monobus topological structure being multiplexed using the signal power source of designed, designed, the bus structures greatly simplify measurement while drilling/survey
Being mechanically and electrically between well instrument, can effectively improve the reliability of overall instrument.
The underground power supply system 3 is used to propose the inserting tube 12, impulse generator 11, gamma survey instrument 14 and resistivity survey
13 electric energy of instrument is measured, using high-power generator 650MWD mandrels；High-power generator 650MWD mandrels, it is in the optimal work of instrument
Make externally export the up to power of 50W in the case of rotating speed 2000r/min, guarantee instrument is gamma, PCD inserting tubes, resistance
The instruments such as rate continue high-quality power supply.The high-power transformation of generator continues to continue to use permanent-magnet material, in order to improve its power, no
Disc type electric machine structure is reused, is changed to radial distribution formula structure.
The measuring unit 121-1 is used to test hole deviation and direction parameter.
122 component of circuit module is high temperature component, and the function of circuit module 122 is to sensor 121-
2 signals are acquired, amplify, filter, calculate and export, and the control to sensor 121-2, are whole measurement/logging instruments
The core of device most critical.
The gamma survey instrument 13, with geosteering instrument is bored, is to utilize with azimuth gamma well-logging is bored using directional gamma
Multiple detector measurements, measure relative to simple detector, its measurement data has azimuth characteristic, it is possible to provide geosteering function,
And orientation gamma imaging can be carried out to stratum, preferably carry out formation evaluation.Directional gamma is adopted with well geosteering system is bored
With mathematical model, 360 degree of reception gamma rays, the main rotation work for obtaining instrument in real time using underground sector azimuth measuring system
Tool face, by the position feed back signal in real-time tool face, produces sector timing control signal, gamma sensor measured value is distributed
It into ready-portioned a certain sector, can effectively measure, maximum speed 200r/m, can meet domestic various under rotation mode work
The requirement quickly logged well of bit speed.
The resistivity measuring instrument 14 uses the more depth electromagnetic resistivity testers of DS-ERC multifrequencies, the DS-ERC
The more depth electromagnetic resistivity testers of multifrequency use 2MHz and 400KHz electromagnetic wave frequency ranges, and antenna receives symmetrical mend using four hairs are double
Repay antenna structure；Four it is not homologous away from transmitting antenna alternately to stratum launch 2MHz and 400KHz electromagnetic signals, pass through measurement
Electromagnetic wave amplitude fading and phase shift between two reception antennas, can obtain the phase difference of 8 different investigation depths, Amplitude Ratio is mended
Resistivity curve is repaid, its well-log information obtained is mainly used for geosteering and with formation evaluation is bored, and can measure 8 resistance at the same time
Rate curve, uploads deep, shallow two resistivity curves, 8 curves of memory real-time storage in real time.
The sensor 121-2 is made of three gravitational accelerometers, three fluxgates, a temperature sensor, and three
A gravitational accelerometer and three fluxgates distinguish orthogonal installation, and sensor gravitational accelerometer uses quartz accelerometer, weight
Power accelerometer use high-temp-resisting vibration-resisting function admirable quartz accelerometer, fluxgate using Honeywell high accuracy,
High sensitivity fluxgate establishes compensation model formula, carries out installation site compensation and temperature-compensating to the data of collection, ensures system
The measurement accuracy of system at different temperatures.
The downhole parameters that the sensor 121-2 is used to obtain measuring unit 121-1 turn by amplification, filtering, A/D
Change, calculate, encoded according to the rules, produce pulse signal, and output of pulse signal to impulse generator 11, pulse generation
Device 11 is so that corresponding change occurs for the mud pressure signal in drill string.
The standpipe pressure sensor 21 finds out these mud pressure variations, so that the value of original signal is obtained, then by ground
The digital treating meter 22 of plane system carries out receiving the decode for signal, is calculated by 23 system of computer software system, is shown by driller
Show that device 24 carries out real-time display.
The impulse generator 11 is using high temperature without glue cup self-power generation type impulse generator, no glue cup self power generation pulser
It is to wash away turbine using drilling fluid in drilling process to drive drive shaft rotation, revolves magnet rotor in magnetic coupling by speed changer
Turn, the outer magnet rotor of magnetic coupling then follows synchronous rotary, so as to drive alternator shaft to rotate, cutting magnetic line and generate electricity,
Power supply is provided for device for subsurface measuring, realizes non contact transmission power.No glue cup pulser self power generation top assembly can adapt to
The well logging of high temperature and deep-well, its sealing unit is using the double-deck Glais ring for being resistant to 200 DEG C of high temperature, even in mud ring
In border, its wear-resisting property and its sealing performance are reliable and stable, service life length.The giving young employees remedial-courses in general knowledge and vocational skills core structure that top assembly uses, respectively
Between dummy piston and piston space cross-distribution, the intensity of mandril is greatly improved, while reduces air-tight structure abrasion.
The embodiment of the utility model is described in detail above, but the content is only the preferable of the utility model
Embodiment, it is impossible to be construed as limiting the scope of the utility model.All impartial changes made according to the scope of the utility model
Change and improvement etc., should all still belong within this patent covering scope.
Claims (5)
1. a kind of high accuracy Integral wireless measurement-while-drilling system, including ground system, downhole system and underground power supply system,
It is characterized in that：
The downhole system includes inserting tube, impulse generator, gamma survey instrument and resistivity measuring instrument, and the inserting tube includes measurement
Pipe nipple, circuit module；The measurement pipe nipple includes measuring unit and sensor；
The ground system includes standpipe pressure sensor, digital treating meter, driller's display, computer software；
The downhole system uses the monobus topological structure of signal power source multiplexing；
The underground power supply system is used to carry the inserting tube, impulse generator, gamma survey instrument and resistivity measuring instrument electric energy, adopts
With high-power generator 650MWD mandrels；
For the gamma survey instrument using directional gamma with geosteering instrument is bored, the resistivity measuring instrument is more using DS-ERC
Frequently more depth electromagnetic resistivity testers；
The sensor passes through amplification, filtering, A/D conversions, calculating for the downhole parameters obtained to measuring unit, according to rule
Surely encoded, produce pulse signal, and output of pulse signal to impulse generator, impulse generator causes the mud in drill string
Starch pressure signal and corresponding change occurs；
The standpipe pressure sensor finds out these mud pressure variations, so that the value of original signal is obtained, then by ground system
Digital treating meter carry out signal and receive the decode, calculated, carried out by driller display real by computer software
When show.
A kind of 2. high-precision Integral wireless measurement-while-drilling system according to claim 1, it is characterised in that：Circuit module
Component is high temperature component.
A kind of 3. high-precision Integral wireless measurement-while-drilling system according to claim 1, it is characterised in that：DS-ERC is more
Frequently more depth electromagnetic resistivity testers use 2MHz and 400KHz electromagnetic wave frequency ranges, and antenna receives symmetrical compensation using four hairs are double
Antenna structure.
A kind of 4. high-precision Integral wireless measurement-while-drilling system according to claim 1, it is characterised in that：Sensor by
Three gravitational accelerometers, three fluxgates, a temperature sensor are formed, three gravitational accelerometers and three fluxgates point
Not orthogonal installation.
A kind of 5. high-precision Integral wireless measurement-while-drilling system according to claim 1, it is characterised in that：The pulse
Generator filtering obtains low frequency mud pulse signal according to this by hardware realization active low-pass filter；By software realize into
One step filters and pulse signal enhanced processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720649003.7U CN207296995U (en) | 2017-06-06 | 2017-06-06 | A kind of high accuracy Integral wireless measurement-while-drilling system |
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| CN201720649003.7U CN207296995U (en) | 2017-06-06 | 2017-06-06 | A kind of high accuracy Integral wireless measurement-while-drilling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843242A (en) * | 2018-07-09 | 2018-11-20 | 西安石大斯泰瑞油田技术有限公司 | A kind of rotary steerable drilling system of low cost high build angle rate and high rate of penetration |
| CN111677496A (en) * | 2020-06-17 | 2020-09-18 | 中国煤炭地质总局第一勘探局 | Electromagnetic wave logging-while-drilling instrument for underground coal mine |
| CN112228038A (en) * | 2020-09-29 | 2021-01-15 | 中铁大桥局集团有限公司 | Intelligent drilling and online detection system for large-diameter drilled pile |
-
2017
- 2017-06-06 CN CN201720649003.7U patent/CN207296995U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843242A (en) * | 2018-07-09 | 2018-11-20 | 西安石大斯泰瑞油田技术有限公司 | A kind of rotary steerable drilling system of low cost high build angle rate and high rate of penetration |
| CN111677496A (en) * | 2020-06-17 | 2020-09-18 | 中国煤炭地质总局第一勘探局 | Electromagnetic wave logging-while-drilling instrument for underground coal mine |
| CN111677496B (en) * | 2020-06-17 | 2023-11-17 | 中国煤炭地质总局第一勘探局 | Underground electromagnetic wave logging while drilling instrument for coal mine |
| CN112228038A (en) * | 2020-09-29 | 2021-01-15 | 中铁大桥局集团有限公司 | Intelligent drilling and online detection system for large-diameter drilled pile |
| CN112228038B (en) * | 2020-09-29 | 2023-09-08 | 中铁大桥局集团有限公司 | Intelligent drilling and on-line detection system for large-diameter drilled pile |
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