CN103147743A - Measurement-while-drilling two-way communication method and system thereof - Google Patents
Measurement-while-drilling two-way communication method and system thereof Download PDFInfo
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- CN103147743A CN103147743A CN2013100542265A CN201310054226A CN103147743A CN 103147743 A CN103147743 A CN 103147743A CN 2013100542265 A CN2013100542265 A CN 2013100542265A CN 201310054226 A CN201310054226 A CN 201310054226A CN 103147743 A CN103147743 A CN 103147743A
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Abstract
The invention relates to a measurement-while-drilling two-way communication method and a system thereof. The method comprises the following steps: (1) obtaining a real-time rotating speed of an underground drill stem; (2) determining whether the real-time rotating speed of the underground drill stem is adjusted or not; and if yes, performing step (3); if not, exiting a communication process; and (3) determining whether the adjusted rotating speed of the underground drill stem is re-adjusted to a rotating speed before adjusting or not within a certain time; if yes, an underground logging instrument is used for transmitting communication data to ground; and if not, exiting the communication process. The measurement-while-drilling two-way communication method and the system thereof can realize two-way communication of a measurement-while-drilling system and improve data transmission efficiency of the system.
Description
Technical field
The invention belongs to oil well logging during field, relate to a kind of communication means and system thereof, relate in particular to a kind of two-way communication and system thereof of measurement while drilling.
Background technology
In measurement-while-drilling system, common signal wireless transmission means has electromagnetic wave mode, sound wave mode and mud-pulse mode.Electromagnetic wave and sound wave mode easily are subject to external environmental interference, 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 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.Be mainly 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.
Summary of the invention
In order to solve the above-mentioned technical problem that exists in background technology, the invention provides two-way communication and the system thereof of the high measurement while drilling of a kind of data transmission efficiency.
Technical solution of the present invention is: the invention provides a kind of two-way communication of measurement while drilling, its special character is: said method comprising the steps of:
1) obtain the real time rotation speed of underground drill stem;
Whether the real time rotation speed that 2) judges underground drill stem is adjusted; If carry out step 3); Otherwise, withdraw from communication process;
Whether the rotary speed of the underground drill stem after 3) judgement is adjusted is adjusted to the rotary speed before adjusting within a certain period of time again; If, by the downhole logging instruments switching working mode; Otherwise, work on according to previous mode of operation.
Above-mentioned steps 3) in, downhole logging instruments to the specific implementation of aboveground transport communication data is:
3.1) obtain the underground survey data;
3.2) with step 3.1) resulting underground survey data encoding and convert the driving pulse that mud pulse generator can be used to; Described driving pulse is voltage signal;
3.3) with step 3.2) resulting voltage signal converts pressure signal and be sent to this pressure signal aboveground to.
Above-mentioned steps 3.3) also comprise afterwards:
3.4) with step 3.3) resulting pressure signal converts voltage signal to;
3.5) with step 3.4) resulting voltage signal carries out filtering and decoding, obtains the underground survey data.
Above-mentioned steps 1) be the real time rotation speed of underground drill stem of obtaining by the tool face azimuth of measuring drilling tool.
Above-mentioned steps 1) specific implementation is:
1.1) measure the current tool face azimuth of drilling tool;
1.2) according to step 1.1) the current tool face azimuth of resulting drilling tool obtains the angular velocity of drilling tool;
1.3) according to step 1.2) turn meter of resulting drilling tool calculates the real time rotation speed of current drill string.
A kind of system of the two-way communication be used to realizing measurement while drilling as above, 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 is connected with downhole drill parameter measurement pipe nipple send pipe nipple; Described aboveground part comprise the data receiver unit and be connected with the data receiver unit and be used for the data receiver unit and receive the ground control system that the pressure signal that obtains carries out filtering and decoding processing; Described data encoding sends pipe nipple and is connected 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 and impulse generator drive the pipe nipple lower end and are connected.
Above-mentioned downhole drill parameter measurement pipe nipple comprises directional tool; Described directional tool is connected with battery assembly lower end.
Above-mentioned data receiver unit is the standpipe pressure sensor.
Advantage of the present invention is:
The invention provides a kind of two-way communication and system thereof of measurement while drilling, 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 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 processing are delivered on driller's display and shown.The present invention 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 two-way communication and the 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 present invention 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 present invention;
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 invention provides a kind of two-way communication of measurement while drilling, the method comprises the following steps:
1) obtain the real time rotation speed of underground drill stem; Especially obtain the real time rotation speed of underground drill stem by the tool face azimuth of measuring drilling tool;
1.1) measure the current tool face azimuth of drilling tool;
1.2) according to step 1.1) the current tool face azimuth of resulting drilling tool obtains the angular velocity of drilling tool;
1.3) according to step 1.2) turn meter of resulting drilling tool calculates the real time rotation speed of current drill string.
Whether the real time rotation speed that 2) judges underground drill stem is adjusted; If carry out step 3); If not, keep mode of operation constant;
Whether the rotary speed of the underground drill stem after 3) judgement is adjusted is adjusted to the rotary speed before adjusting within a certain period of time again; If switch the downhole instrument mode of operation; If not, keep original mode of operation constant; Wherein:
Downhole logging instruments to the specific implementation of aboveground transport communication data is:
3.1) obtain the underground survey data;
3.2) with step 3.1) resulting underground survey data encoding and convert the driving pulse that mud pulse generator can be used to; Described driving pulse is voltage signal;
3.3) with step 3.2) resulting voltage signal converts pressure signal and be sent to this pressure signal aboveground to.
Will be as above transfer of data after aboveground, for the ease of checking or storing, also need it is carried out following steps:
3.4) with step 3.3) resulting pressure signal converts voltage signal to;
3.5) with step 3.4) resulting voltage signal carries out filtering and decoding, obtains the underground survey data.
Referring to Fig. 1, the present invention also provides a kind of communication system of the two-way communication for realizing measurement while drilling as above when above-mentioned communication means is provided, 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 is connected with downhole drill parameter measurement pipe nipple send pipe nipple; Aboveground part comprise the data receiver unit and be connected with the data receiver unit and be used for the data receiver unit and receive the ground control system that the pressure signal that obtains carries out filtering and decoding processing; Data encoding sends pipe nipple and is connected 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 and impulse generator drive the pipe nipple lower end and are connected.
Downhole drill parameter measurement pipe nipple comprises directional tool, with boring the gamma pipe nipple; Described directional tool is connected 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, device for subsurface measuring of the present invention 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 calculates the rotary speed of drilling tool with the rate of change 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.
Battery assembly 5 is used for driving the downhole instrument power supplies such as pipe nipple 6, mud pulse generator 7 to downhole measurement tools, impulse generator.
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 to control the mode of operation of downhole instrument according to the actual well drilled demand, are the transmission channels of control command.
Standpipe pressure sensor 8 reverts to the signal of telecommunication with mud pressure variations, delivers to ground system and decodes.
Ground control system 9 is completed the functions such as pressure signal filtering, decoding, and decoded signal is delivered to the display device such as rear end driller and shown, for drilling well staff reference.
Downhole instrument changes by measuring the drilling tool face drill string rotating speed that obtains.In the present invention, system has the opposing traffic channel, 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, controls the downhole instrument mode of operation by regulating drill string rotating speed.
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.
The downlink communication channel that is made of system drill string 1 and directional tool 4 can be switched 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, under directional tool termination with boring other measuring apparatus 2 such as gamma, upper termination battery assembly 5, battery assembly 5 upper ends connect impulse generators and drive pipe nipples 6, are topmost mud pulse generators 7.Pass through the interior instrument bus communication between 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, control mud pulse generator 7 work, convert voltage signal to pressure signal and be 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 processing are delivered on driller's display and shown.
So-called mode of operation is mainly 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 is downloaded in directional tool can complete the pattern setting, these work need to complete before instrument is gone into the well.
System comes switching working mode by the rotary speed of survey tool face angle calculating drill string.
Directional tool can be measured the current tool face azimuth ω of drilling tool
0, after elapsed time t, the tool face azimuth is ω
1, 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 after adjustment of rotational speed within 1 minute
0, think that this adjustment of rotational speed is one action pattern switching command; Do not adjust back r if surpass 2 minutes rotating speeds
0, to think this time to be operating as once common adjustment of rotational speed, 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, 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 present invention has designed a kind of measurement-while-drilling system of two-way communication, 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 system of full-duplex communication.
Claims (9)
1. the two-way communication of a measurement while drilling is characterized in that: said method comprising the steps of:
1) obtain the real time rotation speed of underground drill stem;
Whether the real time rotation speed that 2) judges underground drill stem is adjusted; If carry out step 3); If not, withdraw from communication process;
Whether the rotary speed of the underground drill stem after 3) judgement is adjusted is adjusted to the rotary speed before adjusting within a certain period of time again; If, by downhole logging instruments to aboveground transport communication data; If not, withdraw from communication process.
2. the two-way communication of measurement while drilling according to claim 1, it is characterized in that: in described step 3), downhole logging instruments to the specific implementation of aboveground transport communication data is:
3.1) obtain the underground survey data;
3.2) with step 3.1) resulting underground survey data encoding and convert the driving pulse that mud pulse generator can be used to; Described driving pulse is voltage signal;
3.3) with step 3.2) resulting voltage signal converts pressure signal and be sent to this pressure signal aboveground to.
3. the two-way communication of measurement while drilling according to claim 2 is characterized in that: described step 3.3) also comprise afterwards:
3.4) with step 3.3) resulting pressure signal converts voltage signal to;
3.5) with step 3.4) resulting voltage signal carries out filtering and decoding, obtains the underground survey data.
4. the two-way communication of according to claim 1 and 2 or 3 described measurement while drillings is characterized in that: described step 1) is the real time rotation speed of underground drill stem of obtaining by the tool face azimuth of measuring drilling tool.
5. the two-way communication of measurement while drilling according to claim 4, it is characterized in that: the specific implementation of described step 1) is:
1.1) measure the current tool face azimuth of drilling tool;
1.2) according to step 1.1) the current tool face azimuth of resulting drilling tool obtains the angular velocity of drilling tool;
1.3) according to step 1.2) turn meter of resulting drilling tool calculates the real time rotation speed of current drill string.
6. system that is used for realizing the two-way communication of the described measurement while drilling of the arbitrary claim of claim 1-5, 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 is connected with downhole drill parameter measurement pipe nipple; Described aboveground part comprise the data receiver unit and be connected with the data receiver unit and be used for the data receiver unit and receive the ground control system that the pressure signal that obtains carries out filtering and decoding processing; Described data encoding sends pipe nipple and is connected with data decode and receiving element.
7. system according to claim 6 is characterized in that: described data encoding sends pipe nipple and comprises that battery assembly, impulse generator drive pipe nipple and mud pulse generator; Described battery assembly drives pipe nipple access mud pulse generator by impulse generator.
8. system according to claim 7, is characterized in that: the directional tool that described downhole drill parameter measurement pipe nipple comprises drill string, is arranged on the drill collar on the drill string sidewall and is arranged on drill collar inside; Described directional tool drives pipe nipple with impulse generator and is connected.
9. according to claim 6-8 arbitrary claim described systems is characterized in that: described data receiver unit is the standpipe pressure sensor.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685630A (en) * | 2016-12-09 | 2017-05-17 | 中国石油集团西部钻探工程有限公司 | Underground bidirectional communication device |
| CN106894812A (en) * | 2017-03-21 | 2017-06-27 | 中国海洋石油总公司 | A kind of surface instruction down transmission method and system |
| CN110344820A (en) * | 2019-08-01 | 2019-10-18 | 辽宁石油化工大学 | It is a kind of to be simulated and the emulator with brill signal transmitting for subsurface environment |
| CN111411944A (en) * | 2020-04-27 | 2020-07-14 | 无锡量子感知研究所 | Nuclear magnetic resonance logging while drilling instrument and working mode control method and system thereof |
| CN112112623A (en) * | 2020-09-22 | 2020-12-22 | 济南新吉纳远程测控股份有限公司 | Intelligent energy-saving method and device for drilling fluid wireless drilling instrument |
| CN114151065A (en) * | 2020-08-18 | 2022-03-08 | 中国石油化工股份有限公司 | Device and method for controlling mode switching of imaging logging-while-drilling instrument |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2356207A (en) * | 1999-11-09 | 2001-05-16 | Stephen John Mcloughlin | Apparatus and method for transmitting information to, and communicating with, a downhole device. |
| US6267185B1 (en) * | 1999-08-03 | 2001-07-31 | Schlumberger Technology Corporation | Apparatus and method for communication with downhole equipment using drill string rotation and gyroscopic sensors |
| CN1466693A (en) * | 2000-09-29 | 2004-01-07 | Aps技术公司 | Method and apparatus for transmitting information to the surface from a drill string down hole in a well |
| US20050001737A1 (en) * | 2003-07-01 | 2005-01-06 | Pathfinder Energy Services, Inc. | Drill string rotation encoding |
| US20070192031A1 (en) * | 2006-02-14 | 2007-08-16 | Baker Hughes Incorporated | System and Method for Pump Noise Cancellation in Mud Pulse Telemetry |
| CN201778814U (en) * | 2010-06-08 | 2011-03-30 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Mud-pulse-type wireless inclinometer while drilling |
-
2013
- 2013-02-20 CN CN2013100542265A patent/CN103147743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267185B1 (en) * | 1999-08-03 | 2001-07-31 | Schlumberger Technology Corporation | Apparatus and method for communication with downhole equipment using drill string rotation and gyroscopic sensors |
| GB2356207A (en) * | 1999-11-09 | 2001-05-16 | Stephen John Mcloughlin | Apparatus and method for transmitting information to, and communicating with, a downhole device. |
| CN1466693A (en) * | 2000-09-29 | 2004-01-07 | Aps技术公司 | Method and apparatus for transmitting information to the surface from a drill string down hole in a well |
| US20050001737A1 (en) * | 2003-07-01 | 2005-01-06 | Pathfinder Energy Services, Inc. | Drill string rotation encoding |
| US20070192031A1 (en) * | 2006-02-14 | 2007-08-16 | Baker Hughes Incorporated | System and Method for Pump Noise Cancellation in Mud Pulse Telemetry |
| CN201778814U (en) * | 2010-06-08 | 2011-03-30 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Mud-pulse-type wireless inclinometer while drilling |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685630A (en) * | 2016-12-09 | 2017-05-17 | 中国石油集团西部钻探工程有限公司 | Underground bidirectional communication device |
| CN106685630B (en) * | 2016-12-09 | 2023-07-07 | 中国石油天然气集团有限公司 | Underground two-way communication device |
| CN106894812A (en) * | 2017-03-21 | 2017-06-27 | 中国海洋石油总公司 | A kind of surface instruction down transmission method and system |
| CN110344820A (en) * | 2019-08-01 | 2019-10-18 | 辽宁石油化工大学 | It is a kind of to be simulated and the emulator with brill signal transmitting for subsurface environment |
| CN111411944A (en) * | 2020-04-27 | 2020-07-14 | 无锡量子感知研究所 | Nuclear magnetic resonance logging while drilling instrument and working mode control method and system thereof |
| CN111411944B (en) * | 2020-04-27 | 2024-04-09 | 国仪石油技术(无锡)有限公司 | Nuclear magnetic resonance logging while drilling instrument and working mode control method and system thereof |
| CN114151065A (en) * | 2020-08-18 | 2022-03-08 | 中国石油化工股份有限公司 | Device and method for controlling mode switching of imaging logging-while-drilling instrument |
| CN114151065B (en) * | 2020-08-18 | 2024-04-05 | 中国石油化工股份有限公司 | Device and method for controlling switching mode of imaging logging instrument while drilling |
| CN112112623A (en) * | 2020-09-22 | 2020-12-22 | 济南新吉纳远程测控股份有限公司 | Intelligent energy-saving method and device for drilling fluid wireless drilling instrument |
| CN112112623B (en) * | 2020-09-22 | 2023-12-26 | 济南新吉纳远程测控股份有限公司 | Intelligent energy-saving method and device for drilling fluid wireless while-drilling instrument |
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Application publication date: 20130612 |