CN205901256U - Logging while drilling instrument circuit protection device - Google Patents
Logging while drilling instrument circuit protection device Download PDFInfo
- Publication number
- CN205901256U CN205901256U CN201620786143.4U CN201620786143U CN205901256U CN 205901256 U CN205901256 U CN 205901256U CN 201620786143 U CN201620786143 U CN 201620786143U CN 205901256 U CN205901256 U CN 205901256U
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- Prior art keywords
- joint
- logging
- current
- detection module
- protection device
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Abstract
The utility model discloses a logging while drilling instrument circuit protection device, connect, lap including shell, circuit board, first joint, second, be provided with current detection module, logic gate and relay on the circuit board, wherein, current detection module is used for oil logging instrument's power supply interface's under the measuring well output current, logic gate is connected with current detection module and relay respectively. Through the utility model discloses an overcurrent protect device, oil logging instrument in drilling process in the pit, when system's operating current increases suddenly, timely open circuit, protection oil logging instrument, when current recovery just often, logic gate will recover to switch on by automatic control relay, makes circuit the normal power supply, does not need artificially to change the fuse, when having saved the manpower and materials cost, has greatly improved oil well logging efficiency.
Description
Technical field
The utility model is related to petroleum exploration well logging field, more particularly, to a kind of connector for logging while drilling circuit protection device.
Background technology
Petroleum industry well logging lwd (logging while drilling) generally refers to measurement during drilling well
Formation rock physical parameter, and with data telemetry system, measurement result is delivered in real time ground and processed.Due to current data
The restriction of transmission technology, substantial amounts of data storage, in the memory of downhole instrument, plays back after trip-out.Measurement while drilling mwd
(measurement while drilling) generally refers to drilling engineering parameter measurement, as hole deviation, orientation and tool-face etc.
Measurement.Sometimes, mwd refers to all of underground survey during drilling well.
Due to well logging obtain formation parameter be just to have bored the formation parameter opened, it closest to the reset condition on stratum,
For more favourable than general wireline logging to the oil-containing of bad ground, gas evaluation.Connector for logging while drilling is placed in drill collar, except measurement
Outside the conventional loggings such as resistivity, the velocity of sound, neutron porosity, density and some imaging loggings, also measurement the pressure of the drill, moment of torsion, rotating speed, ring
Pneumatics power, temperature, the drilling parameter such as chemical composition.Bad environments in drill bit drilling process, temperature is very high, and pressure greatly, vibrates
Strongly, downhole temperature often reaches more than 150 DEG C, and therefore, the requirement to the high temperature resistant property of downhole petroleum logger is higher.
Common downhole petroleum logger includes: magnetic compass list, multishot instrument, steering tool, no
Line directional tool, EMI, photograph list, multiple spot gyrolevel, electronic gyroscope inclinometer etc..
Oil well logging instrument is during downhole drill, if running into harder rock or the short-circuit feelings of circuit appearance
Condition, system operating current can increase suddenly, can burn out electronic circuit when serious, affects construction speed.At present conventional method be
System power supply end seals in a fuse, and if there is over-current phenomenon avoidance, fuse fuses automatically, protects electronic circuit.But this
Kind of fuse is only capable of protection once, has blown and has needed to change, and when changing fuse, needs to interrupt construction, and by whole string instrument from
Well head is brought up, and wastes time and energy.The operating temperature range of most of on the market resettable fuses is between -40 DEG C to 85 at present
DEG C, also cannot meet and be actually needed.
Utility model content
In order to solve above-mentioned technical problem, provide one kind can be more than or equal to 150 DEG C of work in high temperature environments, possess
Stream protection and the automatic device recovering, the utility model provides a kind of connector for logging while drilling circuit protection device, including shell,
Circuit board, the first joint, the second joint, cover plate；Described inside the shell offers the groove for accommodating described circuit board, described electricity
Road plate is arranged in described groove, and described first joint and the second joint are separately positioned on the two ends of described shell, and described
One joint and the second joint are all connected with described circuit board, and described circuit board is provided with current detection module, logic gates
And relay, wherein,
Described current detection module is connected with the power supply interface of downhole petroleum logger, for measuring downhole petroleum well logging
The output current of the power supply interface of instrument；
Described relay is connected in the power supply output circuit of downhole petroleum logger；
Described logic gates is connected with described current detection module and relay respectively, for receiving current detection module
The current information of measurement, and control described relay cut-off when described electric current reaches default overloading threshold, and described
Electric current controls described relay conducting when being less than default overloading threshold.
Further, also include collar, described collar is arranged on outside described second joint, described collar and described shell
It is flexibly connected.
Further, described current detection module includes the current detecting chip for detecting size of current.
Further, described current detection module also includes current amplifier, and described current amplifier is used for measurement well
The output current of the power supply interface of lower oil well logging instrument is amplified.
Further, described first joint is three adapters.
Further, described second joint is ten adapters, and described second joint is connected with described collar.
Further, described shell is cylinder.
Further, when the operating current of described downhole petroleum logger is 1a-1.5a, described overloading threshold is 3a.
Further, when the operating current of described downhole petroleum logger is 200ma-1a, described overloading threshold is 2a.
Device of the present utility model is provided with current detection module, logic gates and relay, by current detecting mould
Block measures the output current of the power supply interface of downhole petroleum logger, receives current detection module measurement by logic gates
Current information, and control the cut-off of described relay when described electric current reaches default overloading threshold, and in described electric current
Control described relay conducting during less than default overloading threshold.Foregoing circuit functional module can in high temperature environments (more than etc.
In 150 DEG C) work and possess overcurrent protection and auto restore facility.
In addition, the utility model is also provided with shell and two interfaces, circuit board is arranged on inside the shell, makes the steady of device
Qualitative higher, versatility more preferably, is convenient for changing.
By overcurrent protective device of the present utility model, oil well logging instrument, during downhole drill, works in system
When electric current increases suddenly, can disconnecting circuit in time, protect oil well logging instrument, when electric current recovers normal, logic gates
Conducting can be recovered by automatic control relay again, make circuit normal power supply it is not necessary to artificially change fuse, save manpower and materials
While cost, drastically increase oil well logging efficiency.
Brief description
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art and advantage, below will be right
In embodiment or description of the prior art the accompanying drawing of required use be briefly described it should be apparent that, below describe in attached
Figure is only some embodiments of the present utility model, for those of ordinary skill in the art, is not paying creative work
On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural decomposition diagram of the connector for logging while drilling circuit protection device that the utility model embodiment provides；
Fig. 2 is the block diagram of the circuit board that the utility model embodiment provides.
In figure: 1- shell, 2- first joint, 3- second joint, 4- circuit board, 41- current detection module, 42- gate
Circuit, 43- relay, 44- current detecting chip, 45- current amplifier, 5- cover plate, 6- collar, 7- groove, 8- downhole petroleum
Logger, 81- power supply interface.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely description is it is clear that described embodiment is only a part of embodiment of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the premise of creative work
Lower obtained every other embodiment, broadly falls into the scope of the utility model protection.
Embodiment one:
Refer to Fig. 1, Fig. 2, the utility model embodiment provides a kind of connector for logging while drilling circuit protection device, including
Shell 1, circuit board 4, the first joint 2, the second joint 3, cover plate 5；Offer for accommodating described circuit board 4 in described shell 1
Groove 7, described circuit board 4 is arranged in described groove 7, and described first joint 2 and the second joint 3 are separately positioned on described outer
The two ends of shell 1, and described first joint 2 and the second joint 3 be all connected with described circuit board 4, and described circuit board 4 is provided with electricity
Stream detection module 41, logic gates 42 and relay 43, wherein,
Described current detection module 41 is connected with the power supply interface 81 of downhole petroleum logger 8, for measuring down-hole stone
The output current of the power supply interface 81 of oily logger 8；
Described relay 43 is connected in the power supply output circuit of downhole petroleum logger 8；
Described logic gates 42 is connected with described current detection module 41 and relay 43 respectively, for receiving electric current inspection
Survey the current information of module 41 measurement, and control when described electric current reaches default overloading threshold described relay 43 to end,
And control described relay 43 to turn on when described electric current is less than default overloading threshold.
Further, also include collar 6, described collar 6 is arranged on outside described second joint 3, described collar 6 with described
Shell 1 is flexibly connected.
Further, described current detection module 41 includes the current detecting chip 44 for detecting size of current.
Further, described current detection module 41 also includes current amplifier 45, and it is right that described current amplifier 45 is used for
The output current of the power supply interface 81 of measurement downhole petroleum logger 8 is amplified.
Further, described first joint 2 is three adapters.
Further, described second joint 3 is ten adapters, and described second joint 3 is connected with described collar.
Further, described shell 1 is cylinder.
Further, when the operating current of described downhole petroleum logger 8 is 1a-1.5a, described overloading threshold is 3a.
Device of the present utility model is provided with current detection module, logic gates and relay, by current detecting mould
Block measures the output current of the power supply interface of downhole petroleum logger, receives current detection module measurement by logic gates
Current information, and control the cut-off of described relay when described electric current reaches default overloading threshold, and in described electric current
Control described relay conducting during less than default overloading threshold.Foregoing circuit functional module can in high temperature environments (more than etc.
In 150 DEG C) work and possess overcurrent protection and auto restore facility.
In addition, the utility model is also provided with shell and two interfaces, circuit board is arranged on inside the shell, makes the steady of device
Qualitative higher, versatility more preferably, is convenient for changing.
By overcurrent protective device of the present utility model, oil well logging instrument, during downhole drill, works in system
When electric current increases suddenly, can disconnecting circuit in time, protect oil well logging instrument, when electric current recovers normal, logic gates
Conducting can be recovered by automatic control relay again, make circuit normal power supply it is not necessary to artificially change fuse, save manpower and materials
While cost, drastically increase oil well logging efficiency.
Embodiment two:
Refer to Fig. 1, Fig. 2, the utility model embodiment provides a kind of connector for logging while drilling circuit protection device, including
Shell 1, circuit board 4, the first joint 2, the second joint 3, cover plate 5；Offer for accommodating described circuit board 4 in described shell 1
Groove 7, described circuit board 4 is arranged in described groove 7, and described first joint 2 and the second joint 3 are separately positioned on described outer
The two ends of shell 1, and described first joint 2 and the second joint 3 be all connected with described circuit board 4, and described circuit board 4 is provided with electricity
Stream detection module 41, logic gates 42 and relay 43, wherein,
Described current detection module 41 is connected with the power supply interface 81 of downhole petroleum logger 8, for measuring down-hole stone
The output current of the power supply interface 81 of oily logger 8；
Described relay 43 is connected in the power supply output circuit of downhole petroleum logger 8；
Described logic gates 42 is connected with described current detection module 41 and relay 43 respectively, for receiving electric current inspection
Survey the current information of module 41 measurement, and control when described electric current reaches default overloading threshold described relay 43 to end,
And control described relay 43 to turn on when described electric current is less than default overloading threshold.
Further, also include collar 6, described collar 6 is arranged on outside described second joint 3, described collar 6 with described
Shell 1 is flexibly connected.
Further, described current detection module 41 includes the current detecting chip 44 for detecting size of current.
Further, described current detection module 41 also includes current amplifier 45, and it is right that described current amplifier 45 is used for
The output current of the power supply interface 81 of measurement downhole petroleum logger 8 is amplified.
Further, described first joint 2 is three adapters.
Further, described second joint 3 is ten adapters, and described second joint 3 is connected with described collar.
Further, described shell 1 is cylinder.
Further, when the operating current of described downhole petroleum logger 8 is 200ma-1a, described overloading threshold is
2a.
Device of the present utility model is provided with current detection module, logic gates and relay, by current detecting mould
Block measures the output current of the power supply interface of downhole petroleum logger, receives current detection module measurement by logic gates
Current information, and control the cut-off of described relay when described electric current reaches default overloading threshold, and in described electric current
Control described relay conducting during less than default overloading threshold.Foregoing circuit functional module can in high temperature environments (more than etc.
In 150 DEG C) work and possess overcurrent protection and auto restore facility.
In addition, the utility model is also provided with shell and two interfaces, circuit board is arranged on inside the shell, makes the steady of device
Qualitative higher, versatility more preferably, is convenient for changing.
By overcurrent protective device of the present utility model, oil well logging instrument, during downhole drill, works in system
When electric current increases suddenly, can disconnecting circuit in time, protect oil well logging instrument, when electric current recovers normal, logic gates
Conducting can be recovered by automatic control relay again, make circuit normal power supply it is not necessary to artificially change fuse, save manpower and materials
While cost, drastically increase oil well logging efficiency.
The above is preferred embodiment of the present utility model it is noted that ordinary skill for the art
For personnel, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (7)
1. a kind of connector for logging while drilling circuit protection device is it is characterised in that include shell (1), circuit board (4), the first joint
(2), the second joint (3), cover plate (5)；The groove (7) for accommodating described circuit board (4), institute is offered in described shell (1)
State circuit board (4) to be arranged in described groove (7), described first joint (2) and the second joint (3) are separately positioned on described shell
(1) two ends, and described first joint (2) and the second joint (3) be all connected with described circuit board (4), on described circuit board (4)
It is provided with current detection module (41), logic gates (42) and relay (43), wherein,
Described current detection module (41) is connected with the power supply interface (81) of downhole petroleum logger (8)；
Described relay (43) is connected in the power supply output circuit of downhole petroleum logger (8)；
Described logic gates (42) is connected with described current detection module (41) and relay (43) respectively.
2. connector for logging while drilling circuit protection device according to claim 1 is it is characterised in that also include collar (6), institute
State collar (6) and be arranged on outside described second joint (3), described collar (6) is flexibly connected with described shell (1).
3. connector for logging while drilling circuit protection device according to claim 1 is it is characterised in that described current detection module
(41) include the current detecting chip (44) for detecting size of current.
4. connector for logging while drilling circuit protection device according to claim 1 is it is characterised in that described current detection module
(41) also include the electric current being amplified for the output current of the power supply interface (81) to measurement downhole petroleum logger (8)
Amplifier (45).
5. connector for logging while drilling circuit protection device according to claim 1 is it is characterised in that described first joint (2)
For three adapters.
6. connector for logging while drilling circuit protection device according to claim 2 is it is characterised in that described second joint (3)
For ten adapters, and described second joint (3) is connected with described collar (6).
7. connector for logging while drilling circuit protection device according to claim 1 is it is characterised in that described shell (1) is circle
Cylindricality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620786143.4U CN205901256U (en) | 2016-07-25 | 2016-07-25 | Logging while drilling instrument circuit protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620786143.4U CN205901256U (en) | 2016-07-25 | 2016-07-25 | Logging while drilling instrument circuit protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901256U true CN205901256U (en) | 2017-01-18 |
Family
ID=57784266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620786143.4U Expired - Fee Related CN205901256U (en) | 2016-07-25 | 2016-07-25 | Logging while drilling instrument circuit protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361022A (en) * | 2018-04-25 | 2018-08-03 | 杭州丰禾石油科技有限公司 | Connector for logging while drilling shell and connector for logging while drilling |
-
2016
- 2016-07-25 CN CN201620786143.4U patent/CN205901256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361022A (en) * | 2018-04-25 | 2018-08-03 | 杭州丰禾石油科技有限公司 | Connector for logging while drilling shell and connector for logging while drilling |
| CN108361022B (en) * | 2018-04-25 | 2020-11-03 | 杭州丰禾石油科技有限公司 | Logging-while-drilling instrument shell and logging-while-drilling instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Naizhen Inventor after: Liu Ce Inventor after: Jiang Yazhu Inventor after: Hao Yongjie Inventor before: Liu Ce Inventor before: Jiang Yazhu Inventor before: Hao Yongjie |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180212 Address after: 100000 Beijing Chaoyang District Anli Road No. 101 Patentee after: CNPC GREATWALL DRILLING Co. Address before: 215151 Suzhou province high tech Zone, Jinsha River Road, No. 158 (Environmental Protection Industrial Park), No. 5 West plant Patentee before: BITSWAVE (SUZHOU) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201124 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC GREATWALL DRILLING Co. Address before: 100000 Beijing Chaoyang District Anli Road No. 101 Patentee before: CNPC GREATWALL DRILLING Co. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |