CN109611075A - A kind of real-time clock synchronization system and well logging device - Google Patents
A kind of real-time clock synchronization system and well logging device Download PDFInfo
- Publication number
- CN109611075A CN109611075A CN201811299800.2A CN201811299800A CN109611075A CN 109611075 A CN109611075 A CN 109611075A CN 201811299800 A CN201811299800 A CN 201811299800A CN 109611075 A CN109611075 A CN 109611075A
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- China
- Prior art keywords
- time
- real
- time clock
- synchronization system
- circuit chip
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- E21B47/26—Storing data down-hole, e.g. in a memory or on a record carrier
Abstract
The present invention relates to oil exploration logging technique fields, specifically a kind of real-time clock synchronization system and well logging device, including real-time clock synchronizing device and ground instrument, the real-time clock synchronizing device includes real time clock circuit chip, processor and power supply, the ground instrument is used to generate depth time curve for issuing time synchronization instruction；The real time clock circuit chip is used to provide the underground real-time time of well logging equipment；The processor is used to read the time synchronization instruction that the ground instrument issues, and executes the time synchronization instruction；The power supply is for providing stable voltage to the real time clock circuit chip.The present invention realizes that the underground time is synchronous with ground elapsed time, reduces time error, and data are more accurate.
Description
Technical field
The present invention relates to oil exploration logging technique field, in particular to a kind of real-time clock synchronization system and well logging
Device.
Background technique
With the tempo increase that people live, concept of time is increasingly paid attention to, when real-time clock device can be accurate
Between, when real-time clock, is usually used for electronic equipment, universal, the real-time clock of the various electronic equipments containing real-time clock function
Application it is also more and more extensive.It is certain in special circumstances, need the feelings that power off in main power source in electronic equipment containing real-time clock
Under condition, guarantee the work of real-time clock, especially petroleum exploration field, underground equipment is operated in underground all the year round, and real-time clock needs
Keep work all the year round.
More and more applications are obtained in the middle logging while drilling technology of oil drilling technology.Relative to drilling measuring technology, with
It bores logging technique to need to upload more parameters in real time, not only the works such as hole angle, azimuth, tool face azimuth including real-time measurement
Journey parameter, the geologic parameter also measured in the conventional loggings such as real-time Transmission resistivity, natural gamma, neutron porosity, density.With
The engineering parameter and geologic parameter of underground can be measured in real time by boring logging technique, and pass through data remote transmission system for underground survey
Information is transmitted to ground in real time.Since logging while drilling technology is real-time upload data, to the time and ground elapsed time of underground
Between synchronism require accurate, to reduce measurement error, just can guarantee that site operation personnel can be according to well logging number
According to the engineering information and geological information for judging underground promptly and accurately, to adjust construction parameter in time, guarantee that drilling tool is most
It is possible to be crept into according to planned course.
Summary of the invention
In view of the above problems in the prior art, the purpose of the present invention is to provide a kind of real-time clock synchronization system and with brill
Well logging apparatus, the underground time is synchronous with ground elapsed time, reduces measurement error.
To solve the above-mentioned problems, clock synchronization apparatus and ground instrument when the present invention provides a kind of, the real-time clock
Synchronizing device includes real time clock circuit chip, processor and power supply；The ground instrument, for issuing time synchronization instruction,
And for generating depth time curve；The real time clock circuit chip, the underground for providing well logging equipment are real-time
Time；The processor, the time synchronization instruction issued for reading the ground instrument, executes the time synchronization instruction；
The power supply, for providing stable voltage for the real time clock circuit chip.
Further, the power supply includes main power source and backup power source.
Further, the backup power source is High Temperature Lithium Cell.
Further, the processor is also used to read the corresponding underground survey data of real-time time.
Further, the ground instrument is also used to measurement data under processing well.
Another aspect of the present invention protects a kind of well logging device, including downhole instrument, which is characterized in that further includes described
Real-time clock synchronization system, the downhole instrument be equipped with memory pipe nipple.
Further, the memory pipe nipple is for measurement data under storage well.
Due to above-mentioned technical proposal, the invention has the following advantages:
1) a kind of real-time clock synchronization system of the present invention and well logging device, using the real-time clock side of synchronization
Method realizes that the underground time is synchronous with ground elapsed time, time error, and data are more accurate.
2) a kind real-time clock synchronization system of the present invention and well logging device are guaranteed using backup power source
For downhole instrument in unlatching or stopping, the underground time is synchronous with ground elapsed time, without proof time again.
3) a kind real-time clock synchronization system of the present invention and well logging device, real-time clock synchronizing function institute
It needs space smaller, saves space.
Detailed description of the invention
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical solution of the present invention
The attached drawing used is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, it is right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
Fig. 1 is a kind of structure chart of real-time clock synchronizing device provided in an embodiment of the present invention；
Fig. 2 is that the embodiment of the present invention provides a kind of real-time clock synchronization system flow chart
Fig. 3 is a kind of structure chart of well logging device provided in an embodiment of the present invention
In figure: 1- real-time clock synchronizing device, 11- real time clock circuit chip, 12- processor, 131- main power source, 132-
Backup power source, 2- ground instrument, 3- downhole instrument string, 31- slurry pulsator, 32- downhole generator, 33- rectifier, in 34-
Deposit pipe nipple, 341- memory board, 35- azimuthal measurement pipe nipple, 36- connecting short section, 37- resistivity meter, 38- gamma instrument.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment 1
It provides a kind of real-time clock synchronization system in the embodiment of the present invention 1, when well logging, needs to grind underground items
Study carefully data to be recorded, draw underground items data and time graph, ground instrument need registered depth and time graph,
At the end of well logging, merges depth time curve and time data and curves, obtain depth data curve, it is therefore desirable to keep
The underground time is consistent with ground elapsed time, and the function of the real-time clock synchronization system is to maintain ground and underground time synchronization.
Referring to figs. 1 and 2, the real-time clock synchronization system, including real-time clock synchronizing device 1 and ground instrument
Device 2, the real-time clock synchronizing device 1 include real time clock circuit chip 11, processor 12 and power supply 13.
The ground instrument 2 is instructed for issuing to the processor 12, and issuing instruction is that time synchronization instructs；Simultaneously
The ground instrument 2 carries out generating underground depth time curve.
The real time clock circuit chip 11 for saving current time, and provides the real-time time of downhole instrument, institute
Real time clock circuit chip power consumption is stated lower than 10 μ A.
The processor 12, the time synchronization instruction issued for reading the ground instrument 2, executes the time synchronization and refers to
It enables.
The real time clock circuit chip 11 and the processor 12 are arranged on memory board.
The power supply 13, for provide stable voltage for the real time clock circuit chip 11, the power supply 13 to be wrapped
Main power source 131 and backup power source 132 are included, the main power source 131 is provided by downhole instrument, and the backup power source 132 is high temperature lithium
Battery, which has resistance to 155 DEG C or more high temperature, small in size, only just corresponds to No. 7 batteries of 1 section, remains the reality
The burning voltage of the offer of Shi Shizhong circuit chip 2 years or more time.
The ground instrument 2 issues time synchronization and instructs to the processor 12, includes 4 words in time synchronization instruction
The long local time is saved, the processor 12 executes time synchronization instruction, reads in the real time clock circuit chip 11
Current time, updates the current time of the real time clock circuit chip 11, and underground real-time time is synchronous with ground elapsed time.
When the main power source 131 stops working, the backup power source 132 is that the real time clock circuit chip 11 provides
Stable voltage keeps the orthochronous of the real-time clock synchronizing device.
After the main power source 131 stops working, when supplying burning voltage again, when the processor 12 loses accurate
Between, inquiry instruction occurs for the processor 12 to the real time clock circuit chip 11, and the real time clock circuit chip 11 will
The extremely processor 12 for returning to the current time of 4 byte longs, guarantees time synchronization.
Using the real-time clock synchronization system, can in the case where stopping main power source, still maintain the underground time with
The synchronization of ground elapsed time, backup power source is long using the time, high temperature resistant, and required space is small, it is ensured that the time of underground and ground
Time is synchronised, and the time difference is small, main power source is restarted play after, it is ensured that the time of underground is synchronised with ground elapsed time, is convenient for
Analyze measurement data.
Embodiment 2
A kind of well logging device, including downhole instrument 3 are provided in the embodiment of the present invention 2, further include that real-time clock is same
Step system, the real-time clock synchronization system is referring to the workflow in embodiment 1.
In conjunction with shown in Fig. 1 and Fig. 3, the downhole instrument 3 from top to bottom include slurry pulsator 31, downhole generator 32,
Rectifier 33, memory pipe nipple 34, azimuthal measurement pipe nipple 35, connecting short section 36, resistivity meter 37 and gamma instrument 38.
The slurry pulsator 31, the downhole generator 32, the rectifier 33, the memory pipe nipple 34, the side
Position measurement pipe nipple 35, the connecting short section 36, the resistivity meter 37 and the gamma instrument 38 are arranged in drill collar.
The slurry pulsator 31 can generate depth for transmitting underground signal to ground convenient for the ground instrument 2
Time graph.
The downhole generator 32 is the main power source 131, the required alternating current for offer.
The reorganizer 33, for being direct current by required AC conversion.
The memory pipe nipple 34, for measurement data under storage well, the processor 12 is corresponding for reading real-time time
Underground survey data.
The resistivity meter 37 is used for Formation Resistivity Measurement.
The gamma instrument 38 is counted for measuring stratum γ.
It is per second to be less than 10bit since the bandwidth of mud-pulse communication is limited, so data are largely stored in memory
, the measurement data of the azimuthal measurement pipe nipple 35, the resistivity meter 37 and 38 three of gamma instrument is stored in described
In memory pipe nipple 34.
The downhole instrument 3 need to carry out circulation survey in well head, if work normally, under be drilled into shaft bottom, if the improper work of fruit
Make, needs replacing instrument；Normal drilling operability, the ground instrument 2 issue time synchronization and instruct to the processor 12, this when
Between include in synchronic command 4 byte longs local time, the processor 12 executes time synchronization instruction, reads the reality
Current time in Shi Shizhong circuit chip 11 updates the current time of the real time clock circuit chip 11, when underground is real-time
Between it is synchronous with ground elapsed time holding.
When the main power source 131 stops working, the backup power source 132 is that the real time clock circuit chip 11 provides
Stable voltage keeps the orthochronous of the real-time clock synchronizing device.
It is drilled into during 10-30m under the downhole instrument 3, the main power source 131 is opened and disconnected repeatedly, the main electricity
When source 131 disconnects, the processor 12 can lose correct time, the processor 12 occur inquiry instruction to it is described real-time when
Clock circuit chip 11, the real time clock circuit chip 11 will return to the extremely processor 12 of the current time of 4 byte longs,
Retention time is synchronous.
It is drilled into during 10-30m under the downhole instrument 3, the resistivity meter 37 and gamma instrument measurement stratum are each
Item data, measured downhole data are stored in the memory pipe nipple 34, and the processor 12 is for reading real-time time pair
The underground survey data answered.
After drilling well, the downhole instrument 3 rises to ground, and measurement data under 2 processing well of ground instrument merges
Depth time curve and data time graph are depth data curve.
The well logging device, including real-time clock synchronization system can guarantee that the underground time is synchronous with ground elapsed time,
Guarantee that time error is small, improves the accuracy of processing depth time curve and data time graph, when convenient for analysis underground work,
The actual condition at scene.
Above description sufficiently discloses a specific embodiment of the invention.It should be pointed out that being familiar with the field
Range of any change that technical staff does a specific embodiment of the invention all without departing from claims of the present invention.
Correspondingly, the scope of the claims of the invention is also not limited only to previous embodiment.
Claims (7)
1. a kind of real-time clock synchronization system, which is characterized in that including real-time clock synchronizing device (1) and ground instrument (2), institute
Stating real-time clock synchronizing device (1) includes real time clock circuit chip (11), processor (12) and power supply (13)；
The ground instrument (2), for issuing time synchronization instruction, and for generating depth time curve；
The real time clock circuit chip (11), for providing the underground real-time time of well logging equipment；
The processor (12) executes the time synchronization for reading the time synchronization instruction of the ground instrument (2) sending
Instruction；
The power supply (13), for providing stable voltage for the real time clock circuit chip (11).
2. according to real-time clock synchronization system described in claim 1, which is characterized in that the power supply (13) includes main power source
(131) and backup power source (132).
3. real-time clock synchronization system according to claim 3, which is characterized in that the backup power source (132) is high temperature
Lithium battery.
4. real-time clock synchronization system according to claim 1, which is characterized in that the processor (12) is also used to read
The corresponding underground survey data of real-time time.
5. real-time clock synchronization system according to claim 1, which is characterized in that the ground instrument (2) is also used to locate
Manage underground survey data.
6. a kind of well logging device, including downhole instrument (3), which is characterized in that further include as any in claim 1-5
Real-time clock synchronization system described in one, the downhole instrument (3) are equipped with memory pipe nipple (34).
7. well logging device according to claim 6, which is characterized in that the memory pipe nipple (34) is used under storage well
Measurement data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299800.2A CN109611075A (en) | 2018-11-02 | 2018-11-02 | A kind of real-time clock synchronization system and well logging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299800.2A CN109611075A (en) | 2018-11-02 | 2018-11-02 | A kind of real-time clock synchronization system and well logging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109611075A true CN109611075A (en) | 2019-04-12 |
Family
ID=66002614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811299800.2A Pending CN109611075A (en) | 2018-11-02 | 2018-11-02 | A kind of real-time clock synchronization system and well logging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126716A1 (en) * | 2020-12-18 | 2022-06-23 | 中国科学院地质与地球物理研究所 | Synchronization method for measure while drilling system |
| CN114658412A (en) * | 2022-05-16 | 2022-06-24 | 吉辰智能设备集团有限公司 | Logging device and logging system |
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|---|---|---|---|---|
| US6424595B1 (en) * | 1999-03-17 | 2002-07-23 | Baker Hughes Incorporated | Seismic systems and methods with downhole clock synchronization |
| CN1869400A (en) * | 2005-05-27 | 2006-11-29 | 中国石化集团胜利石油管理局钻井工艺研究院 | Double-induction resistivity measuring instrument during drilling |
| US20080137474A1 (en) * | 2006-12-06 | 2008-06-12 | Baker Hughes Incorporated | Apparatus and Method for Clock Shift Correction for Measurement-While-Drilling Measurements |
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| CN103899292A (en) * | 2012-12-26 | 2014-07-02 | 中国石油化工股份有限公司 | Method used for measuring impact vibration state of downhole instrument while drilling |
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| CN106199719A (en) * | 2016-06-23 | 2016-12-07 | 中国石油集团钻井工程技术研究院 | A kind of VSP during drilling measures clock system and method |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6424595B1 (en) * | 1999-03-17 | 2002-07-23 | Baker Hughes Incorporated | Seismic systems and methods with downhole clock synchronization |
| CN1869400A (en) * | 2005-05-27 | 2006-11-29 | 中国石化集团胜利石油管理局钻井工艺研究院 | Double-induction resistivity measuring instrument during drilling |
| US20080137474A1 (en) * | 2006-12-06 | 2008-06-12 | Baker Hughes Incorporated | Apparatus and Method for Clock Shift Correction for Measurement-While-Drilling Measurements |
| CN103899292A (en) * | 2012-12-26 | 2014-07-02 | 中国石油化工股份有限公司 | Method used for measuring impact vibration state of downhole instrument while drilling |
| 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 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022126716A1 (en) * | 2020-12-18 | 2022-06-23 | 中国科学院地质与地球物理研究所 | Synchronization method for measure while drilling system |
| CN114658412A (en) * | 2022-05-16 | 2022-06-24 | 吉辰智能设备集团有限公司 | Logging device and logging system |
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Application publication date: 20190412 |