CN208353481U - The device of the colored full frame-rate video in underground is obtained by armoured logging cable - Google Patents
The device of the colored full frame-rate video in underground is obtained by armoured logging cable Download PDFInfo
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- CN208353481U CN208353481U CN201721033675.1U CN201721033675U CN208353481U CN 208353481 U CN208353481 U CN 208353481U CN 201721033675 U CN201721033675 U CN 201721033675U CN 208353481 U CN208353481 U CN 208353481U
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Abstract
The device of the colored full frame-rate video in underground is obtained by armoured logging cable, using logging cable as transmission medium, high speed network connection is established between downhole instrument and ground system, and on logging cable transmission network high clear video image method and circuit, and suitable underground small size is developed on this basis, the IP Camera that hot environment uses, logging cable high speed network transmission modular circuit and structure, the device using logging cable transmission network high definition downhole video is developed in turn, it solves and establishes high speed network connection using logging cable, transmission network HD video, obtain the technological adaptability of wellbore video image, the problems such as structure adaptability and environmental suitability, utility model obtains the method and package unit of wellbore network high clear video image using logging cable, and by geothermal well, it is applied in Petroleum Production well Demonstrate the validity of this method and the practicability of the device.
Description
Technical field
The utility model relates to oil gas field underground imaging logging fields, in particular to a kind of to be obtained by armoured logging cable
The device of the colored full frame-rate video in underground.
Background technique
Under-mine TV is a kind of imaging logging techniques equipment that borehole images are obtained using downhole video cameras, with other imagings
Logging technique compares, and under-mine TV has the characteristics that intuitive efficient, explanation and processing is hardly needed, by directly observing i.e.
It can find the problems in wellbore, can be used for oil, the detection of gas and water casing, fishing junk is looked for blocking up and looks for leakage, and underground work effect is commented
Estimate.
The key technical problems of under-mine TV imaging logging techniques be how the well by downhole video image from several kms
Under be transferred to ground.Common signal transmission medium of logging well is common armoured logging cable, and nonideal vision signal passes
Defeated medium, analog video signal can not directly transmit thousands of meters of distance on logging cable, and digital video signal data amount
Very big, the transmission bandwidth needed is higher, and the message transmission rate of common armoured logging cable is difficult to meet colored full frame rate view
The transmission requirement of frequency image.Currently, the under-mine TV for being in industry referred to as " hawkeye " using logging cable as transmission medium passes
Defeated is discontinuous black white image, and since frame per second is lower, ground video image refresh rate is inadequate, greatly reduces hawkeye well
The logging speed and logging efficiency of lower TV, using effect are had a greatly reduced quality.
Summary of the invention
In order to overcome the defects of the prior art described above, pass through armouring well logging electricity the purpose of this utility model is to provide a kind of
The device that cable obtains the colored full frame-rate video in underground is built between downhole instrument and ground installation using logging cable as transmission medium
Vertical high speed network connection, and colored full frame rate network video image is transmitted on logging cable, and develop on the basis of the method
IP Camera, logging cable high speed network transmission modular circuit and the structure for being suitble to underground small size, hot environment to use out,
And then the device that colored full frame rate downhole video is transmitted using logging cable is developed, it can be in the armoured logging cable of 7000m
The colored full frame-rate video of upper transmission, solves and establishes high speed network connection using logging cable, and the colored full frame-rate video of transmission obtains
The problems such as taking the technological adaptability of wellbore video image, structure adaptability and environmental suitability, utility model utilize well logging electricity
Cable obtains the package unit of wellbore colour full frame rate video image, and passes through the application verification in geothermal well, Petroleum Production well
The validity of this method and the practicability of the device.
In order to achieve the above object, the technical solution of the utility model are as follows:
Obtain the device of the colored full frame-rate video in underground, including downhole instrument 1 by armoured logging cable, cable reel 2 with
Downhole instrument 1 is connected by logging cable；Cable reel 2 is connected by cable interface with ground connection plane system 3；Ground system 3 and light
Photoelectric coder 4 is connected by depth interface；The USB interface of ground system 3 is connected with liquid crystal display 5；The cable of ground system 3
Interface is connected with laptop 6.
The downhole instrument 1 includes LED light source 10, and LED light source 10 is fixed on around heatproof full length shot 11；Heatproof full length shot
11 are connected with camera module 12, and camera module 12 is connected with downhole network video encoder 13, downhole network Video coding
Device 13 is connected with underground logging cable system high-speed transfer module 14.
The effect of the logging cable 2 include carrying downhole instrument weight and transfer downhole instrument into well, ground system to
Downhole instrument power supply, ground system and downhole instrument carry out the medium of high- speed network communication.
The ground system 3 is powered by logging cable to downhole instrument, carries out high speed by logging cable with downhole instrument
Network communication obtains network video data stream and simultaneously decodes, cable depth measurement, test the speed, character adding, video recording store and it is aobvious to provide video
Show device interface and network access interface；Ground system 3 includes underground power supply used module 20, ground logging cable high-speed transfer module
21, the network switch 22, harddisk memory 23, network video coder 23, character adding module 25, main control module 26, cable
Depth, speed measurement module 27, switch power module 28；Cable interface and survey of the underground power supply used module 20 by cable reel 2
Well cable is connected；Logging cable high-speed network transmission module 21 is connected with the cable interface of cable reel 2 with logging cable, establishes
High speed network connection；The output of logging cable high-speed network transmission module 21 is connected with the input of the network switch 22；Network is handed over
22 output of changing planes is connected with the input of ground network video encoder 24；Harddisk memory 23 and ground network Video coding
Device 24 is connected, and can store video；The output of ground network video encoder 24 is connected with the input of character adding module 25, ground
The input of network video coder 24 is connected with the output of character adding module 25；Main control module 26 by serial ports respectively with ground
Network video coder 24, character adding module 25, cable depth, speed measurement module 27 are connected；Cable depth, speed are surveyed
Amount module 27 is connected with depth interface, obtains depth value；The Alternating Current Power Supply of switch power module 28 and offer 220V AC power source
Interface is connected.
The photoelectric encoder 4 is connect with the cable depth logging system of logging winch, and terrestrial system provides depth
Signal coding pulse.
The liquid crystal display 5 is used to show the video image after decoding and character adding.
The laptop 6 is connect with ground system by wired or wireless network, can encode system to network video
System, depth-measuring system, video decoding system, character adding system are configured and control.It can live preview, storage and playback
Video image.
The 11 camera lens front end of heatproof full length shot is located at the hot-zone of vacuum flask, and optical signal is passed to heat preservation by optics
The camera module of bottle cold-zone.
The underground logging cable system high-speed transfer module 14 and logging cable high-speed network transmission module 21 have
Following characteristics:
(1), cable properties adapt to automatically, and module can send sine sweep signal automatic measurement cable frequency after powering on is rung
It answers, and compensates automatically, the transmission characteristic of cable channel is made to approach ideal communication channel undistorted, without intersymbol interference.
(2), rate adapts to automatically, and module is according to the characteristic of channel automatically according to most fast under the conditions of the signal-to-noise ratio of setting
Rate is attached.
(3), transmission is encoded using TC-PAM, supports TC-PAM128, and highest links rate up to 15Mbps.
(4), logging cable is supported to transmit at a distance, transmission range is more than 7000m.
(5), have 1 2PIN remote power feeding interface, the signaling interface of 1 2PIN, the power interface of 1 2PIN, one
The network interface of 8PIN.
(6), using single, 2 cores, wireline operations more than 4 cores and 4 cores.
The method for obtaining wellbore video image by the device that armoured logging cable obtains the colored full frame-rate video in underground, with
Logging cable is transmission medium, establishes high speed network connection, and transmission network HD video is divided into following steps:
Step 1: high speed network connection is established by transmission medium of logging cable；
Step 2: video image acquisition and coding, downhole video image are acquired by downhole network camera, are compressed, are encoded
And transmission；
Step 3: the network video stream that downhole instrument transmits is transferred to network video coder by the network switch and is solved
Code.
Step 4: decoded vision signal is sent to the information such as character adding module superposition depth, speed, subtitle；
Step 5: the pulses switch of photoelectric encoder is cable depth of falling well and speed by cable depth, speed measurement module
Degree, is sent to character adding module through main control module and is added on video image.
Step 6: main control module is connect through network connection to computer with network video coder by serial ports,
Pass through the work of instruction control cable depth, speed measurement module and character adding module that computer software is sent.
That high speed network connection is established described in step 1 depends on logging cable high speed network transmission module, two well loggings
Cable high speed network transmission module is connected to logging cable both ends.Transmission module is established network by following steps and is connected
It connects, carries out high- speed network communication:
(1): after powering on, transmission module initializes hardware configuration and network interface.
(2): the transmission characteristic of automatic measurement logging cable simultaneously carries out channel compensation and adaptive equalization automatically, keeps channel total
Transmission characteristic approach the distortionless ideal communication channel characteristic of no intersymbol interference as far as possible.
(3): being connected to the network, connected with the rate of setting or rate adaptation automatically.It is connected in rate adaptation
When, it can be attached with rate most fast under the conditions of the signal-to-noise ratio that sets.
(4): after network connection is established, the network equipment for being connected to logging cable and transmission module both ends can carry out high speed
Network communication.
The utility model has the beneficial effects that
1. using logging cable high speed network transmission module using armoured logging cable as transmission medium, in downhole instrument and ground
High speed network connection is set up between instrument.
2. the vision signal for being transferred to ground is that real-time colored full frame rate network video is supported using H.264 encoding
A variety of resolution ratio and frame per second.
It is this 3. logging cable high-speed network transmission module contains the key technology that the utility model method is carried out
The core technology component of utility model device, main feature are also the key feature of the utility model.
4. the light under hot environment is believed using high temperature resistance and long camera lens in order to adapt to the working environment of underground high temperature small size
Number it is transmitted to the cold-zone of vacuum flask.Camera module in cold-zone, network code module and high-speed network transmission module are to adopt
The small size circuit designed with special process, structure and combination also constitute the main feature of the utility model.
5. the composition of each functional module and its connection type are the key features of utility model device in ground system.
Detailed description of the invention
Fig. 1 is the overall system view of the utility model.
Fig. 2 is the downhole instrument main functional diagram in the utility model.
Fig. 3 is the ground instrument functional block diagram in the utility model.
Fig. 4 is the downhole instrument temperature-resistance thermal-insulation structural schematic diagram in the utility model.
Fig. 5 is logging cable network transmission system structural schematic diagram in the utility model.
Transmission module line graph when Fig. 6 is the cable above using 4 cores in the utility model.
Fig. 7 is in the utility model using transmission module line graph when single or 2 core cable.
Specific embodiment
The working principle of the utility model is described in further detail with reference to the accompanying drawing.
Referring to Fig.1, a kind of device obtaining downhole network video image by armoured logging cable, including: underground
Instrument 1, cable reel 2, ground system 3, photoelectric encoder 4, liquid crystal display 5, laptop 6；Cable reel 2 and downhole cartridge
1 is connected by logging cable；Ground connection plane system 3 is connected with cable reel 2 by cable interface；Photoelectric encoder 4 and ground system
System 3 is connected by depth interface；Interface on liquid crystal display 5 is connected with the USB interface of ground system 3；Laptop 6
On interface be connected with the cable interface of ground system 3.
Referring to Fig. 2, the downhole cartridge 1 is network video image acquisition, coding and transmitting device.Its shape and structure need
Meet the environmental requirements such as the size, heatproof, pressure resistance of wellbore.Downhole instrument is hung onto wellbore by cable reel and logging cable,
The depth of target is transferred to by the weight of downhole instrument.Including: LED light source 10, heatproof full length shot 11, camera module
12, downhole network video encoder 13, underground logging cable system high-speed transfer module 14；It is long that LED light source 10 is fixed on heatproof
Camera lens 11 provides illumination for underground；Heatproof full length shot 11 is connected with camera module 12, camera module 12 and downhole network
Video encoder 13 is connected, and downhole network video encoder 13 is connected with underground logging cable system high-speed transfer module 14.
LED10 light source provides mine lighting.Heatproof full length shot 11 can work under the hot environment of underground, and under hot environment in well
Camera module 12 of the light signal transduction to vacuum flask cold-zone.Downhole network video encoder 13 compresses vision signal
Coding, by network interface transfers to underground logging cable system high-speed transfer module 14.By underground logging cable system high speed
Network video is streamed to ground installation by logging cable by transmission module 14.
Referring to Fig. 3, the IP Camera of the utility model uses high temperature resistance and long camera lens, and camera lens front end is located at the heat of vacuum flask
Optical signal is passed to the camera module of vacuum flask cold-zone by optics by area.In this way, video acquisition, compressed encoding and transmission
Circuit all works in the cold-zone of vacuum flask, even if in well under hot environment, the temperature of cold-zone also meets circuit in vacuum flask
The ambient temperature requirements of work.
Referring to Fig. 4, the ground system 3 is powered by logging cable to downhole instrument, passes through logging cable with downhole instrument
High- speed network communication is carried out, network video data stream is obtained and is decoded, cable depth measurement is tested the speed, character adding, storage etc. of recording a video.
And provide video display interface and network access interface.Including underground power supply used module 20, ground logging cable high-speed transfer mould
Block 21, the network switch 22, harddisk memory 23, network video coder 23, character adding module 25, main control module 26, electricity
Cable depth, speed measurement module 27, switch power module 28；Underground power supply used module 20 passes through cable interface and logging cable phase
Even；Logging cable high-speed network transmission module 21 is connected with cable interface with logging cable, establishes high speed network connection；Well logging electricity
The output of cable high-speed network transmission module 21 is connected with the input of the network switch 22, obtains high definition analog video；Network exchange
The output of machine 22 is connected with the input of ground network video encoder 24, is decoded to downhole video；Harddisk memory 23 with
Ground network video encoder 24 is connected, and can store video；The output and character adding module of ground network video encoder 24
25 input is connected, and the input of ground network video encoder 24 is connected with the output of character adding module 25, decoded view
Frequency signal is sent to information, the output signals of character adding module such as character adding module superposition depth, speed, subtitle and returns again to net
Network video encoder encoded, is stored and network transmission；Main control module 26 by serial ports respectively with ground network Video coding
Device 24, character adding module 25, cable depth, speed measurement module 27 are connected, and cross the instruction control that computer software is sent
The work of cable depth, speed measurement module and character adding module；Cable depth, speed measurement module 27 and depth interface phase
Even, depth value is obtained；Switch power module 28 is connected with the Alternating Current Power Supply interface for providing 220V AC power source, to provide ground
+ the 12V that each module of instrument needs, the low-voltage dc power supplies such as+5V ,+3.3V.
The photoelectric encoder 4 is connect with the cable depth logging system of logging winch, and terrestrial system provides depth
Signal coding pulse.
The liquid crystal display 5 is used to show the video image after decoding and character adding.
The laptop 6 is connect with ground system by wired or wireless network, can encode system to network video
System, depth-measuring system, video decoding system, character adding system are configured and control.It can live preview, storage and playback
Video image.
The heatproof full length shot 11 is the requirement in order to meet the size and heatproof of downhole instrument.As shown in Fig. 2, this reality
High temperature resistance and long camera lens is used with novel IP Camera, camera lens front end is located at the hot-zone of vacuum flask, by optics by optical signal
Pass to the camera module of vacuum flask cold-zone.In this way, video acquisition, compressed encoding and transmission circuit are all in the cold-zone of vacuum flask
Interior work, even if in well under hot environment, the temperature of cold-zone also meets the ambient temperature requirements of circuit work in vacuum flask.
The underground logging cable system high-speed transfer module 14 and logging cable high-speed network transmission module 21 are these
Key of the utility model method to implement, contains the core technology of the utility model, is the core in downhole instrument and ground instrument
Component.Including layout and structure as shown below.With 1 2PIN remote power feeding interface, the signaling interface of 1 2PIN, 2
The power interface of 2PIN, the network interface of a 8PIN.
Referring to Fig. 5, one of critical component of the implementation of high speed network connection dependent on the utility model logging cable is established
High speed network transmission module.The underground logging cable system high-speed transfer module 14 and logging cable high-speed network transmission mould
Block 21 has the feature that
(1), cable properties adapt to automatically, and module can send sine sweep signal automatic measurement cable frequency after powering on is rung
It answers, and compensates automatically, the transmission characteristic of cable channel is made to approach ideal communication channel undistorted, without intersymbol interference.
(2), rate adapts to automatically, and module is according to the characteristic of channel automatically according to most fast under the conditions of the signal-to-noise ratio of setting
Rate is attached.
(3), transmission is encoded using TC-PAM, supports TC-PAM128, and highest links rate up to 15Mbps.
(4), logging cable is supported to transmit at a distance, transmission range is more than 7000m.
(5), have 1 2PIN remote power feeding interface, the signaling interface of 1 2PIN, the power interface of 1 2PIN, one
The network interface of 8PIN.
(6), using single, 2 cores, wireline operations more than 4 cores and 4 cores.
The method for obtaining wellbore video image by the device that armoured logging cable obtains the colored full frame-rate video in underground, with
Logging cable is transmission medium, establishes high speed network connection, and transmission network HD video is divided into following steps:
Step 1: high speed network connection is established by transmission medium of logging cable；
Step 2: video image acquisition and coding, downhole video image are acquired by downhole network camera, are compressed, are encoded
And transmission；
Step 3: the network video stream that downhole instrument transmits is transferred to network video coder by the network switch and is solved
Code.
Step 4: decoded vision signal is sent to the information such as character adding module superposition depth, speed, subtitle；
Step 5: the pulses switch of photoelectric encoder is cable depth of falling well and speed by cable depth, speed measurement module
Degree, is sent to character adding module through main control module and is added on video image.
Step 6: main control module is connect through network connection to computer with network video coder by serial ports,
Pass through the work of instruction control cable depth, speed measurement module and character adding module that computer software is sent.
That high speed network connection is established described in step 1 depends on logging cable high speed network transmission module, two well loggings
Cable high speed network transmission module is connected to logging cable both ends.Transmission module is established network by following steps and is connected
It connects, carries out high- speed network communication:
(1): after powering on, transmission module initializes hardware configuration and network interface.
(2): the transmission characteristic of automatic measurement logging cable simultaneously carries out channel compensation and adaptive equalization automatically, keeps channel total
Transmission characteristic approach the distortionless ideal communication channel characteristic of no intersymbol interference as far as possible.
(3): being connected to the network, connected with the rate of setting or rate adaptation automatically.It is connected in rate adaptation
When, it can be attached with rate most fast under the conditions of the signal-to-noise ratio that sets.
(4): after network connection is established, the network equipment for being connected to logging cable and transmission module both ends can carry out high speed
Network communication.
Referring to Fig. 6, Fig. 7, logging cable high-speed transfer can have following several connection types.Can be used single, 2 cores, 4 cores or
Wireline operations more than 4 cores.When using single or 2 core logging cable, the transmission of underground power supply used and signal is realized.Using 4 cores
Or when above logging cable, the transmission of underground power supply used and signal is realized.
The utility model establishes network connection by logging cable high-speed transfer module.Directly acquire underground colour full frame
Rate network video image improves the fluency and video quality of the video image of under-mine TV, improves the survey of under-mine TV
Well speed and logging efficiency.
Claims (5)
1. obtaining the device of the colored full frame-rate video in underground, including downhole instrument (1), cable reel (2) by armoured logging cable
It is connected with downhole instrument (1) by logging cable；Cable reel (2) is connected by cable interface with ground connection plane system (3)；Ground system
System (3) is connected with photoelectric encoder (4) by depth interface；The USB interface of ground system (3) is connected with liquid crystal display (5)；
The cable interface of ground system (3) is connected with laptop (6), it is characterised in that:
The ground system (3) is powered by logging cable to downhole instrument, carries out high speed network by logging cable with downhole instrument
Network communication obtains network video data stream and simultaneously decodes, cable depth measurement, test the speed, character adding, video recording store and provide video and show
Device interface and network access interface；Ground system (3) includes underground power supply used module (20), ground logging cable high-speed transfer module
(21), the network switch (22), harddisk memory (23), ground network video encoder (24), character adding module (25), master
Control module (26), cable depth, speed measurement module (27) and switch power module (28)；Underground power supply used module (20) passes through electricity
The cable interface of cable winch (2) is connected with logging cable；Ground logging cable high-speed transfer module (21) and cable reel (2)
Cable interface is connected with logging cable, establishes high speed network connection；Ground logging cable high-speed network transmission module (21) it is defeated
It is connected out with the input of the network switch (22)；The output of the network switch (22) is defeated with ground network video encoder (24)
Enter connected；Harddisk memory (23) is connected with ground network video encoder (24), can store video；Ground network Video coding
The output of device (24) is connected with the input of character adding module (25), and the input of ground network video encoder (24) and character are folded
The output of module (25) is added to be connected；Main control module (26) is folded with ground network video encoder (24), character respectively by serial ports
Module (25), cable depth, speed measurement module (27) is added to be connected；Cable depth, speed measurement module (27) and depth interface
It is connected, obtains depth value；Switch power module (28) is connected with the Alternating Current Power Supply interface for providing 220V AC power source.
2. the device according to claim 1 for obtaining the colored full frame-rate video in underground by armoured logging cable, feature
It is, the downhole instrument (1) includes LED light source (10), and LED light source (10) is fixed on around heatproof full length shot (11)；Heatproof
Full length shot (11) is connected with camera module (12), and camera module (12) is connected with downhole network video encoder (13), well
Lower network video encoder (13) is connected with underground logging cable system high-speed transfer module (14).
3. the device according to claim 1 for obtaining the colored full frame-rate video in underground by armoured logging cable, feature
, the photoelectric encoder (4) is connect with the cable depth logging system of logging winch, terrestrial system provide depth signal
Coded pulse.
4. the device according to claim 1 for obtaining the colored full frame-rate video in underground by armoured logging cable, feature
The laptop (6) is connect with ground system by wired or wireless network, to network video coded system, depth
Degree measuring system, video decoding system, character adding system are configured and control.
5. the device according to claim 2 for obtaining the colored full frame-rate video in underground by armoured logging cable, feature
Described heatproof full length shot (11) the camera lens front end is located at the hot-zone of vacuum flask, and optical signal is passed to vacuum flask by optics
The camera module of cold-zone.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721033675.1U CN208353481U (en) | 2017-08-17 | 2017-08-17 | The device of the colored full frame-rate video in underground is obtained by armoured logging cable |
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| CN201721033675.1U CN208353481U (en) | 2017-08-17 | 2017-08-17 | The device of the colored full frame-rate video in underground is obtained by armoured logging cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529037A (en) * | 2017-08-17 | 2017-12-29 | 西安石油大学 | The device and method of the colored full frame-rate video in underground is obtained by armoured logging cable |
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2017
- 2017-08-17 CN CN201721033675.1U patent/CN208353481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529037A (en) * | 2017-08-17 | 2017-12-29 | 西安石油大学 | The device and method of the colored full frame-rate video in underground is obtained by armoured logging cable |
| CN107529037B (en) * | 2017-08-17 | 2023-10-20 | 西安石油大学 | Device and method for acquiring underground color full-frame-rate video through armored logging cable |
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