CN110344821A - A kind of downhole drill communication means and system - Google Patents
A kind of downhole drill communication means and system Download PDFInfo
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- CN110344821A CN110344821A CN201810306340.5A CN201810306340A CN110344821A CN 110344821 A CN110344821 A CN 110344821A CN 201810306340 A CN201810306340 A CN 201810306340A CN 110344821 A CN110344821 A CN 110344821A
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- 238000005553 drilling Methods 0.000 claims description 49
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Classifications
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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
- E21B47/13—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 by electromagnetic energy, e.g. radio frequency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of downhole drill communication means and control systems.Method includes the following steps: the formation resistivity situation of change for monitoring underground communica tion position；Judge whether to need to adjust communication pattern when the formation resistivity of communication position changes, formation resistivity when needing to adjust communication pattern according to communication position determines new traffic mode, wherein, the new traffic mode includes signal tranmitting frequency and/or output power signal；Downhole drill communication is carried out based on the new traffic mode.Communication mode can be automatically adjusted according to the method for the present invention, communication mode is enabled to match current geological environment, to improve the transmission stability of electromagnetic wave signal, improve the transmission depth of electromagnetic wave signal.
Description
Technical field
The present invention relates to oil-gas mining fields, and in particular to a kind of downhole drill communication means and system.
Background technique
Measurement while drilling is directional well, an essential technological means in horizontal well construction.Due to by drilling depth,
The restriction of the conditions such as ground environment is not available wire transmission mode at measurement while-drilling instrument in many drilling operation scenes
Transmission measurement-while-drilling data are on the ground.
At present, it is common to use electromagnetic measurement while drilling (EM-MWD) system, it includes with drilling through T unit using low-frequency electrical
Magnetic wave transmit information, can using liquid and gas drilling fluid drilling engineering in normal use.But EM-MWD system
Information transmission is substantially a kind of special wireless communication system, and particularity shows that electromagnetic wave is propagated in lossy dielectric,
Transmission depth is influenced by stratum media, and the level of conventional MWD is not achieved in transmission depth.
Especially, during actual well drilled, when with drilling through T unit and following drill bit different layers displacement is dynamic in the earth formation,
Especially, when different layers interdigit has interlayer, data transmit the stratum media property meeting that relied on electromagnetic transmission is passed through
Significant change occurs.The electromagnetic wave signal that this allows for finally being transferred to ground is very unstable, and there are the possibility of transmission failure.This
Electromagnetism is leveraged with the use scope for the ground adaptability and instrument for drilling through T unit.
Summary of the invention
The present invention provides a kind of downhole drill communication means, include the following steps:
Monitor the formation resistivity situation of change of underground communica tion position；
Judge whether to need to adjust communication pattern when the formation resistivity of communication position changes, it is logical when needing to adjust
Formation resistivity when letter mode according to communication position determines new traffic mode, wherein the new traffic mode includes signal hair
Radio frequency rate and/or output power signal；
Downhole drill communication is carried out based on the new traffic mode.
In one embodiment, judge whether to need to adjust communication mould when the formation resistivity of communication position changes
Formula, comprising:
Judge whether the variation of the formation resistivity of the communication position is stable；
Judge whether to need to adjust communication pattern when the variation of the formation resistivity of the communication position is stablized.
In one embodiment, judge whether to need to adjust communication pattern, comprising:
Obtain the corresponding desired communication mode of formation resistivity of the communication position；
Judge whether the desired communication mode and current communication pattern are consistent, it is such as inconsistent, then determine to need to adjust
Communication pattern.
In one embodiment:
When the formation resistivity is the Europe 0-3 rice, the signal tranmitting frequency of corresponding desired communication mode is 2HZ；
When the formation resistivity resistivity includes 3 Europe rice for the Europe 3-10 meter, not, corresponding desired communication mode
Signal tranmitting frequency be 5HZ；
When the formation resistivity includes 10 Europe rice for the Europe 10-500 meter, not, corresponding desired communication mode
Signal tranmitting frequency is 10HZ；
It is corresponding when the formation resistivity resistivity includes 500 Europe rice for 500 Europe Ou meter -5000 meter, not
The signal tranmitting frequency of desired communication mode is 5HZ；
When the formation resistivity is 5000 Europe meter or more, the signal tranmitting frequency of corresponding desired communication mode is
2HZ。
In one embodiment, downhole drill communication is carried out based on the new traffic mode, in which:
It is sent and is led to the ground based on original communication pattern before carrying out downhole drill communication based on the new traffic mode
Believe mode altering notice.
In one embodiment:
The transmission of Measurement While Drilling Data and needs are cached under suspended well when the formation resistivity of communication position changes
The downhole drilling data of transmission；
The downhole drilling data of caching are sent after the communication pattern of downhole drill communication determines.
The invention also provides a kind of downhole drill communication control system, the system comprises:
Formation resistivity obtains module, is configured to obtain the formation resistivity situation of change of downhole drill communication position；
Communication pattern decision-making module is configured to judge whether when the formation resistivity of the communication position changes
It needs to adjust communication pattern, new traffic mould is determined according to the formation resistivity of the communication position when needing to adjust communication pattern
Formula simultaneously exports, and the new traffic mode is used to configure the electromagnetic radiation mode of downhole drill communication equipment.
In one embodiment, the communication pattern decision-making module includes formation resistivity variation monitoring unit, in which:
The formation resistivity variation monitoring unit be configured to determine the communication position formation resistivity variation whether
Stablize；
The communication pattern decision-making module is configured to the judgement when the variation of the formation resistivity of the communication position is stablized
It is no to need to adjust communication pattern.
In one embodiment, the communication pattern decision-making module includes first memory, and the first memory is stored with
The corresponding desired communication mode of different formation resistivities, the communication pattern decision-making module are configured that
The formation resistivity of communication position is called from the first memory when judging whether to need to adjust communication pattern
Corresponding desired communication mode；
Judge whether the desired communication mode and current communication pattern are consistent, it is such as inconsistent, then determine to need to adjust
Communication pattern.
In one embodiment, the system also includes data buffers, in which:
The communication pattern decision-making module is additionally configured to the output when the formation resistivity of the communication position changes
Communicate pause command, wherein the communication pause command is surveyed for controlling the downhole drill communications devices halts downhole drill
Measure the transmission of data；
The data buffer is configured to the caching when the transmission of downhole drilling data is suspended and needs the well sent
Lower Measurement While Drilling Data is simultaneously defeated by the downhole drilling data of caching when the transmission of downhole drilling data is started again at
The downhole drill communication equipment is arrived out.
Communication mode can be automatically adjusted according to the method for the present invention, and communication mode is enabled to match current geological environment, from
And the transmission stability of electromagnetic wave signal is improved, improve the transmission depth of electromagnetic wave signal.
Other feature or advantage of the invention will illustrate in the following description.Also, Partial Feature of the invention or
Advantage will be become apparent by specification, or be appreciated that by implementing the present invention.The purpose of the present invention and part
Advantage can be realized or be obtained by step specifically noted in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings:
Fig. 1 and Fig. 2 is the method flow diagram of different embodiments according to the present invention；
Fig. 3 is Part Methods flow chart according to an embodiment of the invention；
Fig. 4~Fig. 7 is the system structure schematic diagram of different embodiments according to the present invention.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, implementation personnel of the invention whereby
Can fully understand that how the invention applies technical means to solve technical problems, and reach technical effect realization process and according to
The present invention is embodied according to above-mentioned realization process.As long as each embodiment it should be noted that do not constitute conflict, in the present invention
And each feature in each embodiment can be combined with each other, be formed by technical solution protection scope of the present invention it
It is interior.
Measurement while drilling is directional well, an essential technological means in horizontal well construction.Due to by drilling depth,
The restriction of the conditions such as ground environment is not available wire transmission mode at measurement while-drilling instrument in many drilling operation scenes
Transmission measurement-while-drilling data are on the ground.
At present, it is common to use electromagnetic measurement while drilling (EM-MWD) system, it includes with drilling through T unit using low-frequency electrical
Magnetic wave transmit information, can using liquid and gas drilling fluid drilling engineering in normal use.But EM-MWD system
Information transmission is substantially a kind of special wireless communication system, and particularity shows that electromagnetic wave is propagated in lossy dielectric,
Transmission depth is influenced by stratum media, and the level of conventional MWD is not achieved in transmission depth.
Especially, during actual well drilled, when with drilling through T unit and following drill bit different layers displacement is dynamic in the earth formation,
Especially, when different layers interdigit has interlayer, data transmit the stratum media property meeting that relied on electromagnetic transmission is passed through
Significant change occurs.The electromagnetic wave signal that this allows for finally being transferred to ground is very unstable, and there are the possibility of transmission failure.This
Electromagnetism is leveraged with the use scope for the ground adaptability and instrument for drilling through T unit.
In view of the above-mentioned problems, the invention proposes a kind of downhole drill communication means.In the method for the invention, according to from
Electromagnetic wave next hair for adjusting electromagnetic wave in real time of stratum media situation experienced into surface process is sent with T unit is drilled through
Emission mode, so that it is guaranteed that the case where electromagnetic wave signal stable can be received by ground system, avoid the occurrence of data transmission failure.
Specifically, the emission mode of electromagnetic wave includes signal tranmitting frequency and/or output power signal.
Specifically, during actual well drilled, in drill bit when differently position directly switches layer by layer, especially, layer interdigit
When having interlayer, a relatively straightforward performance is that formation resistivity at drill place jumps therewith.And formation resistivity is then to influence electricity
One key factor of magnetic wave transmission state in the earth formation.Therefore, in the method for the invention, electricity is adjusted according to formation resistivity
The emission mode of magnetic wave, that is to say, that by the stratum of the emission mode of the electromagnetic wave of data transmission and electromagnetic radiation position
Resistivity linkage.Cause to change with the formation resistivity drilled through at T unit when changing with brill communicator location
When, the signal tranmitting frequency and/or output power signal of electromagnetic wave are changed correspondingly, so that it is guaranteed that electromagnetic wave can be with all-the-time stable
It is transferred to earth's surface.
Communication mode can be automatically adjusted according to the method for the present invention, and communication mode is enabled to match current geological environment, from
And the transmission stability of electromagnetic wave signal is improved, improve the transmission depth of electromagnetic wave signal.Further, method of the invention can
Independently to implement in subsurface environment, to meet the case where most of working environment at coal mines can only maintain data one-way transmission.
Next based on attached drawing detailed description detailed process according to the method for the embodiment of the present invention, in the flow chart of attached drawing
The step of showing can execute in the computer system comprising such as a group of computer-executable instructions.Although in flow charts
The logical order of each step is shown, but in some cases, it can be to be different from shown by sequence execution herein or retouch
The step of stating.
As shown in Figure 1, in one embodiment, the method for the present invention includes following steps:
Monitor the formation resistivity situation of change (S100) of underground communica tion position；
Judge whether formation resistivity changes (S110), step S100 is continued to execute if not；
Judge whether to need to adjust communication pattern (signal tranmitting frequency when the formation resistivity of communication position changes
And/or output power signal) (S120), if you do not need to then continuing downhole drill communication with current communication pattern
(S130)；
Formation resistivity when needing to adjust communication pattern according to communication position determines new traffic mode (S140)；
Downhole drill communication (S150) is carried out based on new traffic mode.
Specifically, in one embodiment, the formation resistivity real-time linkage of communication pattern and communication position.That is, unless there are
The operation of greater degree, the judgement of step S120 are always to be.When formation resistivity changes immediately according to variation after
Formation resistivity determines new traffic mode.
Further, it is contemplated that the variation of formation resistivity is possible and unstable, may can jump back to again after mutation original
State.It therefore in one embodiment, is not to judge whether to need to adjust communication immediately after formation resistivity changes
Mode, but the monitoring of a specific duration is carried out to the variation of formation resistivity, after confirming that the variation of formation resistivity is stablized
It is made whether to need to adjust the judgement of communication pattern again.
Specifically, as shown in Fig. 2, monitoring the stratum of communication position after the formation resistivity of communication position changes
The variation of resistivity judges whether the variation of formation resistivity is stable (S221).
When the variation of the formation resistivity of communication position and it is unstable when, continue the formation resistivity for monitoring communication position
Variation.Specifically, in one embodiment, not determining a need for adjustment communication pattern at this time, that is, still with original communication
Mode sends data.
Judge whether to need to adjust communication pattern (S222) when the variation of the formation resistivity of communication position is stablized.
Further, it is contemplated that frequently change emission mode can transmission to communication system and receiving device cause it is larger
Pressure, therefore, in one embodiment, be not when formation resistivity changes just immediately change electromagnetic wave transmitting mould
Formula, but carry out the transformation of emission mode again when the amplitude of variation of formation resistivity is more than preset section.Specifically, sentencing
Break and determines whether the amplitude of variation of formation resistivity is more than preset section when whether needing to adjust communication pattern.
Specifically, in one embodiment, according to transmission situation of the electromagnetic wave in the stratum media of Different Strata resistivity,
Determine multiple desired communication modes.The corresponding formation resistivity section of each desired communication mode.That is, with desired communication mode
The electromagnetic wave of transmitting can smoothly transmit in the stratum media in its corresponding formation resistivity section.Conversely, when not be with
When the electromagnetic wave of desired communication Mode Launch passes through the stratum media in corresponding formation resistivity section, just it is likely to transmit
The case where failure.In this way, it is only necessary to judge whether current electromagnetic radiation mode is corresponding to current formation resistivity
Desired communication mode, so that it may judge whether to need to change current electromagnetic radiation mode.
Specifically, as shown in figure 3, in one embodiment, judge whether to need the step of adjusting communication pattern include:
Obtain the corresponding desired communication mode (S300) of formation resistivity of communication position；
Judge whether the determining desired communication mode of previous step and current communication pattern are consistent (S310)；
As inconsistent, then determine to need to adjust communication pattern (S320)；
As consistent, then determine not needing adjustment communication pattern (S330).
Specifically, in one embodiment:
When formation resistivity is the Europe 0-3 rice, the signal tranmitting frequency of corresponding desired communication mode is 2HZ；
When formation resistivity resistivity is the Europe 3-10 rice (not including 3 Europe rice), corresponding desired communication mode
Signal tranmitting frequency is 5HZ；
When formation resistivity is the Europe 10-500 rice (not including 10 Europe rice), the signal of corresponding desired communication mode
Tranmitting frequency is 10HZ；
When formation resistivity resistivity is 500 Europe Ou meter -5000 rice (not including 500 Europe rice), corresponding reason
The signal tranmitting frequency for thinking communication pattern is 5HZ；
When formation resistivity is 5000 Europe meter or more, the signal tranmitting frequency of corresponding desired communication mode is 2HZ.
Further, due to can be in its corresponding formation resistivity section with the electromagnetic wave of desired communication Mode Launch
It is smoothly transmitted in stratum media.Therefore, in one embodiment, when communication pattern needs to adjust, directly by current formation resistance
The corresponding desired communication mode of rate is as new traffic mode.
Further, it is contemplated that when data sender changes communication pattern, data receiver is also required to be connect accordingly
The conversion of receipts mode.Therefore, in one embodiment, original communication is based on before carrying out downhole drill communication based on new traffic mode
Mode sends communication pattern Notification of Changes to the ground.Further, fail or receive to prevent communication pattern Notification of Changes from sending
Failure, in one embodiment, before carrying out downhole drill communication based on new traffic mode to the ground based on original communication pattern
Send multiple communication pattern Notification of Changes.Specifically, in one embodiment, carrying out downhole drill communication based on new traffic mode
3 communication pattern Notifications of Changes are sent based on original communication pattern to the ground before.
Further, it in certain application scenarios, needs to continue to send Measurement While Drilling Data.But carrying out communication mould
During formula adjusts judgement and adjusts communication pattern, it can not determine whether to go on smoothly data transmission.Therefore,
In order to avoid loss of data, in one embodiment, suspends downhole drill when the formation resistivity of communication position changes and survey
The transmission of data is measured, so that ground is unable to properly receive and causes loss of data after avoiding data from sending.Meanwhile from downhole drill
From at the time of the transmission of measurement data is suspended, caching needs the downhole drilling data sent, when downhole drill communication
Communication pattern sends the downhole drilling data of caching after determining, so that it is guaranteed that ground receiver is to complete downhole drilling
Data.
Further, based on method proposed by the invention, the invention also provides a kind of downhole drill communication systems.Such as
Shown in Fig. 4, in one embodiment, system includes:
Formation resistivity obtains module 410, is configured to obtain the formation resistivity situation of change of underground communica tion position；
Communication pattern decision-making module 420 is configured to judge whether when the formation resistivity of communication position changes
It needs to adjust communication pattern, the formation resistivity when needing to adjust communication pattern according to communication position determines new traffic mode simultaneously
Output.
The new traffic mode that communication pattern decision-making module 420 exports is for configuring downhole drill communication equipment (communication module
400) electromagnetic radiation mode, so that communication module 400 be enabled to realize the number between downhole drill instrument 401 and ground installation 402
According to communication.
Communication module 430 is configured to the communication pattern that communication pattern decision-making module 420 determines and carries out downhole drill
Communication.
Further, in one embodiment, formation resistivity acquisition module 410 has independent, formation resistivity measurement
Unit.In another embodiment, formation resistivity acquisition module 410 has data acquisition interface, from measurement while-drilling instrument
Formation resistivity data is obtained at formation resistivity measuring.
Further, in one embodiment, formation resistivity obtains 410 measurement module of module for the resistivity signal of acquisition
The processing such as filtering of signal and A D transformation are carried out, the digital signal handled well is sent to communication pattern decision-making module 420.
Further, in one embodiment, downhole drill communication equipment (communication module 400) is by power amplifier and corresponding
Interface circuit composition, for that will be exported after signal digital processing and controller module coded modulation with transmitting information
Electric signal carry out power amplification, amplified electromagnetic signal passes through electromagnetic signal dual-mode antenna again and launches.
Further, in one embodiment, when communication module 400 receives new traffic mode, according to new traffic mode
The transmitting of the frequency and power regulation electromagnetic wave signal that include configures, and sends ground installation 402 for frequency selection signal, to adjust
The receiver of ground installation 402 carries out corresponding signal reception processing.
Further, communication module 400 includes signal conditioning module.Signal conditioning module by signal coupling interface, can compile
The circuit units such as journey automatic gain amplifier, low-pass filter composition, for amplifying to the received electromagnetic signal of antenna and
Filtering processing, is processed into suitable rear class for the electromagnetic signal received and is further processed required signal.Signal coupling unit packet
Containing impedance transformer and interface circuit, function be the connection of antenna and transmitter and receiver is completed to control, and make antenna with
Impedance matching between amplifier；The electromagnetic signal level that programmable automatic gain amplifier will test is amplified to suitable electricity
It is flat, it is made of casacade multi-amplifier, gain can be arranged automatically according to the size of signal level by controller；Low-pass filter is used for
The electromagnetic signal received is filtered, the interference noise except the passband of setting is filtered out.
Further, as shown in figure 5, in one embodiment, communication pattern decision-making module 520 changes including formation resistivity
Monitoring unit 521, in which:
Formation resistivity variation monitoring unit 521 is configured to determine whether the formation resistivity variation of communication position is stable；
Communication pattern decision-making module 520 is configured to judge whether to need when the variation of the formation resistivity of communication position is stablized
Adjust communication pattern.
Further, as shown in fig. 6, in one embodiment, communication pattern decision-making module 620 includes memory 622, storage
Device 622 is stored with the corresponding desired communication mode of different formation resistivities
Communication pattern decision-making module 620 is configured that
Call the formation resistivity of communication position corresponding from memory 622 when judging whether to need to adjust communication pattern
Desired communication mode；
Judge whether desired communication mode is consistent with current communication pattern, it is such as inconsistent, then determine to need to adjust communication
Mode.
Further, as shown in fig. 7, in one embodiment, system further includes data buffer 740, in which:
It is temporary that communication pattern decision-making module 720 is additionally configured to the output communication when the formation resistivity of communication position changes
Stop order, wherein communication pause command is for controlling downhole drill communication equipment (communication module 700) pause downhole drilling
The transmission of data；
Data buffer 740 is configured to the caching when the transmission of downhole drilling data is suspended and needs the underground sent
Measurement While Drilling Data simultaneously exports the downhole drilling data of caching when the transmission of downhole drilling data starts again at
To downhole drill communication equipment (communication module 700).To which not sent downhole drilling data be sent out by communication module 700
It is sent to ground installation 702.
Further, in one embodiment, the downhole drill communication equipment that system proposed by the invention is controlled includes
At drill bit with bore communication module.System with boring, drill bit is mounted on together with communication module nearby is downhole drill near drill bit
Measuring instrument provides communication and supports.
Further, in one embodiment, the downhole drill communication equipment that system proposed by the invention is controlled also wraps
Include communication relays.When the electromagnetic wave signal for reaching ground with brill communication module at drill bit is faint, tripping in communication relays
And system of the present invention.Repeater first receives the electromagnetic signal sent with communication module is bored.One is articulated in repeater
The system of the invention risen obtains formation resistivity data in real time, according to current formation resistivity, adjust automatically communication relay
The communication pattern of device forward signal is adapted the communication pattern of communication relays forward signal and formation resistivity, reaches and mention
Height is with the purpose for drilling through news module transfer depth.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Method of the present invention can also have other various embodiments.Without departing substantially from
In the case where essence of the present invention, those skilled in the art make various corresponding changes or change in accordance with the present invention
Shape, but these corresponding changes or deformation all should belong to scope of protection of the claims of the invention.
Claims (10)
1. a kind of downhole drill communication means, which comprises the steps of:
Monitor the formation resistivity situation of change of underground communica tion position；
Judge whether to need to adjust communication pattern when the formation resistivity of communication position changes, communicates mould when needing to adjust
Formation resistivity when formula according to communication position determines new traffic mode, wherein the new traffic mode includes signal transmitting frequency
Rate and/or output power signal；
Downhole drill communication is carried out based on the new traffic mode.
2. the method according to claim 1, wherein the judgement when the formation resistivity of communication position changes
Whether need to adjust communication pattern, comprising:
Judge whether the variation of the formation resistivity of the communication position is stable；
Judge whether to need to adjust communication pattern when the variation of the formation resistivity of the communication position is stablized.
3. method according to claim 1 or 2, which is characterized in that judge whether to need to adjust communication pattern, comprising:
Obtain the corresponding desired communication mode of formation resistivity of the communication position；
Judge whether the desired communication mode and current communication pattern are consistent, it is such as inconsistent, then determine to need to adjust communication
Mode.
4. according to the method described in claim 3, it is characterized by:
When the formation resistivity is the Europe 0-3 rice, the signal tranmitting frequency of corresponding desired communication mode is 2HZ；
When the formation resistivity resistivity includes 3 Europe rice for the Europe 3-10 meter, not, the letter of corresponding desired communication mode
Number tranmitting frequency is 5HZ；
When the formation resistivity includes 10 Europe rice for the Europe 10-500 meter, not, the signal of corresponding desired communication mode
Tranmitting frequency is 10HZ；
When the formation resistivity resistivity includes 500 Europe rice for 500 Europe Ou meter -5000 meter, not, corresponding ideal
The signal tranmitting frequency of communication pattern is 5HZ；
When the formation resistivity is 5000 Europe meter or more, the signal tranmitting frequency of corresponding desired communication mode is 2HZ.
5. method according to any one of claims 1 to 4, which is characterized in that carry out well based on the new traffic mode
Under with drilling through letter, in which:
Send communication mould to the ground based on original communication pattern before carrying out downhole drill communication based on the new traffic mode
Formula Notification of Changes.
6. method according to any one of claims 1 to 5, it is characterised in that:
When the formation resistivity of communication position changes, the transmission of Measurement While Drilling Data and caching need to send under suspended well
Downhole drilling data；
The downhole drilling data of caching are sent after the communication pattern of downhole drill communication determines.
7. a kind of downhole drill communication control system, which is characterized in that the system comprises:
Formation resistivity obtains module, is configured to obtain the formation resistivity situation of change of downhole drill communication position；
Communication pattern decision-making module is configured to judge whether to need when the formation resistivity of the communication position changes
Communication pattern is adjusted, new traffic mode is determined simultaneously according to the formation resistivity of the communication position when needing to adjust communication pattern
Output, the new traffic mode are used to configure the electromagnetic radiation mode of downhole drill communication equipment.
8. system according to claim 7, which is characterized in that the communication pattern decision-making module includes that formation resistivity becomes
Change monitoring unit, in which:
The formation resistivity variation monitoring unit is configured to determine whether the formation resistivity variation of the communication position is stable；
The communication pattern decision-making module is configured to judge whether to need when the variation of the formation resistivity of the communication position is stablized
Adjust communication pattern.
9. system according to claim 7 or 8, which is characterized in that the communication pattern decision-making module includes the first storage
Device, the first memory are stored with the corresponding desired communication mode of different formation resistivities, the communication pattern decision model
Block is configured that
Call the formation resistivity of communication position corresponding from the first memory when judging whether to need to adjust communication pattern
Desired communication mode；
Judge whether the desired communication mode and current communication pattern are consistent, it is such as inconsistent, then determine to need to adjust communication
Mode.
10. the system according to any one of claim 7~9, which is characterized in that the system also includes data buffer storages
Device, in which:
The communication pattern decision-making module is additionally configured to export communication when the formation resistivity of the communication position changes
Pause command, wherein the communication pause command is for controlling the downhole drill communications devices halts downhole drilling number
According to transmission；
The data buffer is configured to the caching when the transmission of downhole drilling data is suspended and needs the downhole sent
It bores measurement data and is output to the downhole drilling data of caching when the transmission of downhole drilling data starts again at
The downhole drill communication equipment.
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578675A (en) * | 1982-09-30 | 1986-03-25 | Macleod Laboratories, Inc. | Apparatus and method for logging wells while drilling |
| AU5189200A (en) * | 1999-09-10 | 2001-03-15 | Schlumberger Holdings Limited | System and method for determining a characteristic of an earth formation and/or borehole traversing the formation |
| WO2002012676A1 (en) * | 2000-08-08 | 2002-02-14 | Emtec Solutions Limited | Apparatus and method for telemetry |
| US20070052551A1 (en) * | 2005-08-23 | 2007-03-08 | Lovell John R | Formation evaluation system and method |
| CN101294491A (en) * | 2008-06-12 | 2008-10-29 | 中国石油集团钻井工程技术研究院 | Self-adaption transmission method and system for down-hole information |
| CN101525997A (en) * | 2008-03-06 | 2009-09-09 | 中国石油化工股份有限公司 | Downhole signal transmitting device for electromagnetic measurement while drilling system and transmitting method thereof |
| CN102704921A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气集团公司 | Measuring device for electrical resistivity of electromagnetic waves while drilling and measuring method thereof |
| WO2013116099A1 (en) * | 2012-01-30 | 2013-08-08 | Schlumberger Canada Limited | Improving efficiency of pixel-based inversion algorithms |
| CN103266887A (en) * | 2013-05-14 | 2013-08-28 | 中国石油集团长城钻探工程有限公司 | Instrument for measuring deep resistivity through wireless short-distance transmission signals and application method thereof |
| CN203214049U (en) * | 2012-12-28 | 2013-09-25 | 中国电子科技集团公司第二十二研究所 | Wireless while-drilling measurement system |
| US20140132271A1 (en) * | 2012-11-09 | 2014-05-15 | Greatwall Drilling Company | Apparatus and method for deep resistivity measurement using communication signals near drill bit |
| CN103899301A (en) * | 2012-12-28 | 2014-07-02 | 中国电子科技集团公司第二十二研究所 | Wireless measurement while drilling system and method |
| CN104213910A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Constant current transmitting system for measurement while drilling of electromagnetic wave geosteering tool |
| US20150300150A1 (en) * | 2012-12-19 | 2015-10-22 | Halliburton Energy Services, Inc. | Systems and methods for look ahead resistivity measurement with offset well information |
| CN105089646A (en) * | 2014-05-07 | 2015-11-25 | 中国石油化工股份有限公司 | Logging-while-drilling resistivity measuring device with data transmission function and method |
| CN105317428A (en) * | 2014-06-24 | 2016-02-10 | 中国石油天然气集团公司 | Method and device for determining electromagnetic channel model |
| CN106609669A (en) * | 2015-10-23 | 2017-05-03 | 中国石油化工股份有限公司 | Processing device measuring ground signal while drilling |
| US20170184754A1 (en) * | 2015-12-15 | 2017-06-29 | Terramatix Pte. Ltd. | Measurement while drilling system and method |
| US20170235011A1 (en) * | 2014-04-11 | 2017-08-17 | Halliburton Energy Services, Inc. | Estimating subsurface formation and invasion properties |
| WO2017196313A1 (en) * | 2016-05-11 | 2017-11-16 | Halliburton Energy Services, Inc. | Determining subterranean-formation resistivity using an electromagnetic telemetry system |
-
2018
- 2018-04-08 CN CN201810306340.5A patent/CN110344821B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4578675A (en) * | 1982-09-30 | 1986-03-25 | Macleod Laboratories, Inc. | Apparatus and method for logging wells while drilling |
| AU5189200A (en) * | 1999-09-10 | 2001-03-15 | Schlumberger Holdings Limited | System and method for determining a characteristic of an earth formation and/or borehole traversing the formation |
| WO2002012676A1 (en) * | 2000-08-08 | 2002-02-14 | Emtec Solutions Limited | Apparatus and method for telemetry |
| US20070052551A1 (en) * | 2005-08-23 | 2007-03-08 | Lovell John R | Formation evaluation system and method |
| CN101525997A (en) * | 2008-03-06 | 2009-09-09 | 中国石油化工股份有限公司 | Downhole signal transmitting device for electromagnetic measurement while drilling system and transmitting method thereof |
| CN101294491A (en) * | 2008-06-12 | 2008-10-29 | 中国石油集团钻井工程技术研究院 | Self-adaption transmission method and system for down-hole information |
| WO2013116099A1 (en) * | 2012-01-30 | 2013-08-08 | Schlumberger Canada Limited | Improving efficiency of pixel-based inversion algorithms |
| CN102704921A (en) * | 2012-05-28 | 2012-10-03 | 中国石油天然气集团公司 | Measuring device for electrical resistivity of electromagnetic waves while drilling and measuring method thereof |
| US20140132271A1 (en) * | 2012-11-09 | 2014-05-15 | Greatwall Drilling Company | Apparatus and method for deep resistivity measurement using communication signals near drill bit |
| US20150300150A1 (en) * | 2012-12-19 | 2015-10-22 | Halliburton Energy Services, Inc. | Systems and methods for look ahead resistivity measurement with offset well information |
| CN203214049U (en) * | 2012-12-28 | 2013-09-25 | 中国电子科技集团公司第二十二研究所 | Wireless while-drilling measurement system |
| CN103899301A (en) * | 2012-12-28 | 2014-07-02 | 中国电子科技集团公司第二十二研究所 | Wireless measurement while drilling system and method |
| CN103266887A (en) * | 2013-05-14 | 2013-08-28 | 中国石油集团长城钻探工程有限公司 | Instrument for measuring deep resistivity through wireless short-distance transmission signals and application method thereof |
| CN104213910A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气集团公司 | Constant current transmitting system for measurement while drilling of electromagnetic wave geosteering tool |
| US20170235011A1 (en) * | 2014-04-11 | 2017-08-17 | Halliburton Energy Services, Inc. | Estimating subsurface formation and invasion properties |
| CN105089646A (en) * | 2014-05-07 | 2015-11-25 | 中国石油化工股份有限公司 | Logging-while-drilling resistivity measuring device with data transmission function and method |
| CN105317428A (en) * | 2014-06-24 | 2016-02-10 | 中国石油天然气集团公司 | Method and device for determining electromagnetic channel model |
| CN106609669A (en) * | 2015-10-23 | 2017-05-03 | 中国石油化工股份有限公司 | Processing device measuring ground signal while drilling |
| US20170184754A1 (en) * | 2015-12-15 | 2017-06-29 | Terramatix Pte. Ltd. | Measurement while drilling system and method |
| WO2017196313A1 (en) * | 2016-05-11 | 2017-11-16 | Halliburton Energy Services, Inc. | Determining subterranean-formation resistivity using an electromagnetic telemetry system |
Non-Patent Citations (25)
| Title |
|---|
| LI YAN: ""Magnetic induction for MWD telemetry system"", 《IEEE》, 19 August 2017 (2017-08-19) * |
| YI SU: ""Electromagnetic measurement while drilling technology based on the carrier communication principle"", 《PETROLEUM EXPLORATION AND DEVELOPMENT》, 30 April 2013 (2013-04-30) * |
| 中国石化石油勘探开发研究院博士后科研工作站: "《油气成藏理论与勘探开发技术 3 中国石化石油勘探开发研究院2010年博士后学术论坛文集》", vol. 1, 30 April 2011, pages: 147 - 152 * |
| 刘伟，等: ""CQ-EMWD电磁波随钻测量***"", 《石油科技论坛》 * |
| 刘伟，等: ""CQ-EMWD电磁波随钻测量***"", 《石油科技论坛》, vol. 34, no. 1, 31 October 2015 (2015-10-31) * |
| 刘科满，等: ""CEM-1型电磁波随钻测量***的研制与应用"", 《石油机械》 * |
| 刘科满，等: ""CEM-1型电磁波随钻测量***的研制与应用"", 《石油机械》, vol. 40, no. 2, 28 February 2012 (2012-02-28) * |
| 姚爱国，等: ""电磁随钻信号传输技术研究"", 《探矿工程(岩土钻掘工程)》 * |
| 姚爱国，等: ""电磁随钻信号传输技术研究"", 《探矿工程(岩土钻掘工程)》, 31 December 2009 (2009-12-31) * |
| 宋朝晖，等: ""CEM-1电磁随钻测量仪井下电磁传输特性研究及现场应用"", 《内蒙古石油化工》 * |
| 宋朝晖，等: ""CEM-1电磁随钻测量仪井下电磁传输特性研究及现场应用"", 《内蒙古石油化工》, no. 5, 30 May 2016 (2016-05-30), pages 11 - 14 * |
| 张东旭，等: ""电磁波接力传输随钻测量***研制与应用"", 《天然气工业》 * |
| 张东旭，等: ""电磁波接力传输随钻测量***研制与应用"", 《天然气工业》, vol. 34, no. 2, 28 February 2014 (2014-02-28) * |
| 彭烈新，等: ""基于电磁随钻测量***的功率自适应分配方法研究"", 《钻采工艺》, vol. 33, no. 4, 31 July 2010 (2010-07-31) * |
| 彭烈新，等: ""电磁随钻中传输速率自适应调度方法"", 《石油机械》 * |
| 彭烈新，等: ""电磁随钻中传输速率自适应调度方法"", 《石油机械》, vol. 38, no. 10, 31 October 2010 (2010-10-31), pages 22 - 26 * |
| 熊皓，等: "" 随钻测量电磁信道分析的等效传输线法"", 《电波科学学报》 * |
| 熊皓，等: "" 随钻测量电磁信道分析的等效传输线法"", 《电波科学学报》, vol. 10, no. 3, 30 September 1995 (1995-09-30) * |
| 王家豪，等: ""煤矿井下随钻测量电磁传输信道建模"", 《煤炭学报》 * |
| 王家豪，等: ""煤矿井下随钻测量电磁传输信道建模"", 《煤炭学报》, vol. 40, no. 7, 31 July 2015 (2015-07-31) * |
| 王智锋，等: ""E-LINK电磁波无线随钻测量***的分析及应用"", 《石油机械》 * |
| 王智锋，等: ""E-LINK电磁波无线随钻测量***的分析及应用"", 《石油机械》, vol. 39, no. 6, 30 June 2011 (2011-06-30) * |
| 王添翼: ""井间瞬变电磁法地面***研究"", 《中国优秀硕士论文全文库基础科学》, no. 5, 15 May 2015 (2015-05-15) * |
| 胡越发，等: ""井下电磁中继传输技术研究及应用"", 《科技导报》 * |
| 胡越发，等: ""井下电磁中继传输技术研究及应用"", 《科技导报》, vol. 33, no. 15, 31 August 2015 (2015-08-31) * |
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