CN203248147U - Both-way communication system with measurement while drilling - Google Patents
Both-way communication system with measurement while drilling Download PDFInfo
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- CN203248147U CN203248147U CN 201320078210 CN201320078210U CN203248147U CN 203248147 U CN203248147 U CN 203248147U CN 201320078210 CN201320078210 CN 201320078210 CN 201320078210 U CN201320078210 U CN 201320078210U CN 203248147 U CN203248147 U CN 203248147U
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- pipe nipple
- data
- drilling
- measurement
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Abstract
The utility model relates to a both-way communication system with measurement while drilling. The both-way communication system comprises a portion under a well and a portion above the well. The portion under the well comprises an under-well drilling parameter measurement short section and a data encoding sending short section connected with the under-well drilling parameter measurement short section. The portion above the well comprises a data receiving unit and a ground control system which is connected with the data receiving unit and used for conducting filtering and decoding processing on a pressure signal received by the data receiving unit. The data encoding sending short section is connected with a data decoding and receiving unit. According to the both-way communication system with the measurement while the drilling, the data transmission efficiency of the system is improved.
Description
Technical field
The utility model belongs to oil well logging during field, relates to a kind of communication system, relates in particular to a kind of intercommunication system of measurement while drilling.
Background technology
Common signal wireless transmission means has electromagnetic wave mode, sound wave mode and mud-pulse mode in the measurement-while-drilling system.Electromagnetic wave and sound wave mode are subject to external environmental interference easily, and its transmission range is limited, so the mud-pulse mode is the most popular a kind of wireless transmission method of situ of drilling well.In horizontal well and directional well drilling process, by mud pulse generator drilling parameter and the stratum geologic parameter that records is sent to ground, for drilling well staff reference.But the shortcoming of this kind transmission means maximum is exactly that transfer rate is low, and per second can only transmit several bit, and is one-way communication.For make instrument can adapt under the multiple geological conditions the actual demands such as drilling well, usually to for downhole instrument designs multiple-working mode, require to select suitable mode of operation according to practical service environment.Mainly be to send control command to the down-hole by switch pump time span at present, switch the mode of operation of downhole instrument.The pass pump time needs tens seconds usually, and system during this period of time can't send data earthward.
The utility model content
In order to solve the above-mentioned technical problem that exists in the background technology, the utility model provides the intercommunication system of the high measurement while drilling of a kind of data transmission efficiency.
Technical solution of the present utility model is: the utility model provides a kind of intercommunication system be used to realizing aforesaid measurement while drilling, and its special character is: described system comprises down-hole part and aboveground part; Described down-hole part comprises the battery assembly, and downhole drill parameter measurement pipe nipple and the data encoding that links to each other with downhole drill parameter measurement pipe nipple send pipe nipple; Described aboveground part comprises that data receiver unit and the data receiver unit that also is used for that is connected with the data receiver unit receive the ground control system that the pressure signal that obtains carries out filtering and decoding processing; Described data encoding sends pipe nipple and links to each other with data decode and receiving element.
Above-mentioned data encoding sends pipe nipple and comprises that impulse generator drives pipe nipple and mud pulse generator;
Above-mentioned battery assembly is measured pipe nipple, impulse generator driving pipe nipple and mud pulse generator to downhole parameters working power is provided.Described battery assembly upper end drives the pipe nipple lower end with impulse generator and links to each other.
Above-mentioned downhole drill parameter measurement pipe nipple comprises directional tool; Described directional tool links to each other with battery assembly lower end.
Above-mentioned data receiver unit is the standpipe pressure sensor.
The utility model has the advantages that:
The utility model provides a kind of intercommunication system of measurement while drilling, and whole system drives the parts such as pipe nipple, mud pulse generator, drill string, standpipe pressure sensor and ground control system by device for subsurface measuring, battery assembly, impulse generator and forms; Pass through the interior instrument bus communication between the downhole instrument, survey data is passed to impulse generator drive the pipe nipple place, impulse generator drives pipe nipple and according to the mode of operation of setting data transaction is become driving pulse, the work of control mud pulse generator converts voltage signal to pressure signal and is sent to ground by drilling fluid; The standpipe pressure sensor converts the pressure change signal of drilling fluid to voltage signal and is transferred to ground control system and carries out the processing such as filtering, decoding, and the data after will processing are delivered on driller's display and shown.The utility model is not increasing any equipment, on the basis that takes full advantage of the measurement-while-drilling system existing capability, provides a kind of transmission measurement data that can make progress simultaneously to send the intercommunication system of control command downwards.Send the communication mode of order to the down-hole, realized the measurement-while-drilling system two-way communication.The utility model provides a kind of control mode of switching the instrument working method by measuring the drilling tool rotary rotary speed for the raising system transmits data efficiency, and then does not affect data upload simultaneously in control instrument switch operating mode.Make system have bi-directional communication function, transmit earthward survey data by drilling fluid, send control command downwards by drill string.
Description of drawings
Fig. 1 is the structural representation of measurement while drilling intercommunication system provided by the utility model;
Wherein:
The 1-drill string; 2-is with boring gamma; The 3-non magnetic drill collar; The 4-directional tool; 5-battery assembly; The 6-impulse generator drives pipe nipple; The 7-mud pulse generator; 8-standpipe pressure sensor; The 9-ground control system.
The specific embodiment
The utility model provides a kind of intercommunication system of measurement while drilling, and this system comprises down-hole part and aboveground part; The down-hole part comprises the battery assembly, and downhole drill parameter measurement pipe nipple and the data encoding that links to each other with downhole drill parameter measurement pipe nipple send pipe nipple; Aboveground part comprises that data receiver unit and the data receiver unit that also is used for that is connected with the data receiver unit receive the ground control system that the pressure signal that obtains carries out filtering and decoding processing; Data encoding sends pipe nipple and links to each other with data decode and receiving element.
Data encoding sends pipe nipple and comprises that impulse generator drives pipe nipple and mud pulse generator;
The battery assembly is measured pipe nipple, impulse generator driving pipe nipple and mud pulse generator to downhole parameters working power is provided.Described battery assembly upper end drives the pipe nipple lower end with impulse generator and links to each other.
Downhole drill parameter measurement pipe nipple comprises directional tool, with boring the gamma pipe nipple; Described directional tool links to each other with battery assembly lower end, is connected on the directional tool lower end with boring gamma.
The data receiver unit is the standpipe pressure sensor.
Particularly, the device for subsurface measuring that the utility model adopts is by directional tool 4, with the survey tool that several measurement while-drilling instruments such as boring gamma 2 combine, and can detect the drilling parameters such as stratum geologic parameter, hole deviation, orientation and tool-face.Wherein directional tool 4 is essential survey tools that are equipped with, and uses the rotary speed of the rate of change calculating drilling tool at survey tool face angle, with the down going channel of drill string 1 common construction system control command.Directional tool 4 is fixed on non magnetic drill collar 3 inside, prevents that external environment condition is to the interference in magnetic field of the earth.
Impulse generator drives pipe nipple 6 downhole data that measures is encoded, and output drive signal drives mud pulse generator 7 work.Mud pulse generator 7 is used for producing mud-pulse, converts the underground survey parameter to the mud pressure signal and sends back ground system.
Drill string 1 comprises the drilling tools such as drilling rod, heavy weight drill pipe and drill collar, is mainly used to transmitting torque.In native system, the terrestrial operation personnel can adjust its rotating speed with the mode of operation of control downhole instrument according to the actual well drilled demand, are the transmission channels of control command.
Downhole drill parameter measurement pipe nipple comprises drill string; Be provided with drill collar on the sidewall of drill string, the directional tool that drill collar inside is provided with; Directional tool drives pipe nipple with impulse generator and links to each other.
Standpipe pressure sensor 8 reverts to the signal of telecommunication with mud pressure variations, delivers to ground system and decodes.
Downhole instrument changes the drill string rotating speed that obtains by measuring the drilling tool face.System has the opposing traffic channel in the utility model, and uplink communication channel drives pipe nipple 6, mud pulse generator 7, standpipe pressure sensor 8 etc. by impulse generator and forms, by drilling fluid transmission measurement data earthward; Downlink communication channel is comprised of drill string 1 and directional tool 4, by regulating drill string rotating speed control downhole instrument mode of operation.
The upstream communication channels of system is comprised of impulse generator driving pipe nipple 6, mud pulse generator 7, standpipe pressure sensor 8, by drilling fluid terrestrial system 9 transmission measurement data.
Form the downlink communication channel of system by drill string 1 and directional tool 4, can switch the mode of operation of device for subsurface measuring by adjusting rotary speed.
The survey tool string that downhole measurement tools is comprised of directional tool and other measurement while-drilling instrument.Directional tool 4 is positioned at non magnetic drill collar 3 inside, and termination is with other measuring apparatuss 2 such as brill gammas under the directional tool, and upper termination battery assembly 5, battery assembly 5 upper ends connection impulse generator drive pipe nipple 6, are mud pulse generators 7 topmost.Pass through the interior instrument bus communication between the downhole instrument, survey data is passed to directional tool 4 places, directional tool is transferred to impulse generator according to the mode of operation of setting with the data packing and drives pipe nipple 6, impulse generator drives pipe nipple 6 data transaction is become driving pulse, 7 work of control mud pulse generator convert voltage signal to pressure signal and are sent to ground by drilling fluid; Standpipe pressure sensor 8 converts the pressure change signal of drilling fluid to voltage signal and is transferred to ground control system 9 and carries out the processing such as filtering, decoding, and the data after will processing are delivered on driller's display and shown.
So-called mode of operation mainly is to select downhole instrument uploading data bag content.The user can select packet content according to the actual well drilled demand, and several measurement parameters are constituted a packet.After defining mode of operation, parameters downloaded in the directional tool can finish the pattern setting, these work need finish before instrument is gone into the well.
System comes switching working mode by the rotary speed that drill string is calculated at survey tool face angle.
Directional tool can be measured the current tool face azimuth ω of drilling tool
0, then the tool face azimuth is ω behind the elapsed time t
1, then can calculate angular velocity and be:
Can calculate current drill string rotating speed according to angular velocity divided by 2 π:
If current rotating speed is r
0, rotating speed is r after increasing
H, be r after rotating speed reduces
LIf be adjusted into again r behind the adjustment of rotational speed within 1 minute
0, think that then this adjustment of rotational speed is one action pattern switching command; Do not adjust back r if surpass 2 minutes rotating speeds
0, think then this time to be operating as once common adjustment of rotational speed that directional tool does not carry out the pattern handover operation.
Following table has been listed adjustment of rotational speed order corresponding to the various patterns of pattern.This measurement-while-drilling system only is provided with 4 kinds of mode of operations, if system need to increase mode of operation, then reconfigures r
0, r
H, r
LBetween transfer sequence get final product.
| Pattern 1 | r 0→r H→r 0 |
| Pattern 2 | r 0→r L→r 0 |
| Mode 3 | r 0→r H→r 0→r L→r 0 |
| Pattern 4 | r 0→r L→r 0→r H→r 0 |
The utility model has designed a kind of intercommunication system of measurement while drilling, on existing drilling fluid transmission system basis, has realized easily passing under the mode of operation select command by adjusting rotating speed, and then has realized the measurement while drilling of full-duplex communication.
Claims (4)
1. the intercommunication system of a measurement while drilling, it is characterized in that: described system comprises down-hole part and aboveground part; The data encoding transmission pipe nipple that described down-hole part comprises downhole drill parameter measurement pipe nipple and links to each other with downhole drill parameter measurement pipe nipple; Described aboveground part comprises that data receiver unit and the data receiver unit that also is used for that is connected with the data receiver unit receive the ground control system that the pressure signal that obtains carries out filtering and decoding processing; Described data encoding sends pipe nipple and links to each other with data decode and receiving element.
2. system according to claim 1 is characterized in that: described data encoding sends pipe nipple and comprises that impulse generator drives pipe nipple and mud pulse generator; Described impulse generator drives pipe nipple access mud pulse generator.
3. system according to claim 2, it is characterized in that: described downhole drill parameter measurement pipe nipple comprises drill string; Be provided with drill collar on the sidewall of described drill string, the directional tool that described drill collar inside is provided with; Described directional tool drives pipe nipple with impulse generator and links to each other.
4. the described system of arbitrary claim according to claim 1-3, it is characterized in that: described data receiver unit is the standpipe pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078210 CN203248147U (en) | 2013-02-20 | 2013-02-20 | Both-way communication system with measurement while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078210 CN203248147U (en) | 2013-02-20 | 2013-02-20 | Both-way communication system with measurement while drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248147U true CN203248147U (en) | 2013-10-23 |
Family
ID=49374593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320078210 Expired - Lifetime CN203248147U (en) | 2013-02-20 | 2013-02-20 | Both-way communication system with measurement while drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248147U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200642A (en) * | 2014-09-14 | 2014-12-10 | 哈尔滨理工大学 | System and method for ground control on underground equipment |
| CN109098659A (en) * | 2018-07-06 | 2018-12-28 | 中国石油集团川庆钻探工程有限公司 | A kind of slide drilling tool-face method of adjustment |
-
2013
- 2013-02-20 CN CN 201320078210 patent/CN203248147U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200642A (en) * | 2014-09-14 | 2014-12-10 | 哈尔滨理工大学 | System and method for ground control on underground equipment |
| CN109098659A (en) * | 2018-07-06 | 2018-12-28 | 中国石油集团川庆钻探工程有限公司 | A kind of slide drilling tool-face method of adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131023 |