CN103334743B - A kind of formation tester ground control system - Google Patents
A kind of formation tester ground control system Download PDFInfo
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- CN103334743B CN103334743B CN201310295006.1A CN201310295006A CN103334743B CN 103334743 B CN103334743 B CN 103334743B CN 201310295006 A CN201310295006 A CN 201310295006A CN 103334743 B CN103334743 B CN 103334743B
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- formation tester
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Abstract
The invention discloses a kind of formation tester ground control system, this system is connected with downhole instrument by logging cable, and this system comprises: control panel, carries out downhole instrument data acquisition, cable depth and tension signal collection; High-voltage DC power supply, realizes downhole instrument direct current supply; High-voltage ac power, realizes downhole instrument Alternating Current Power Supply; Signal processing module, carries out post processing to downhole instrument data, cable depth and the reason signal that control panel collects.Adopt the present invention, the interface compatibility performance of ground system can be improved, also can improve portable performance.
Description
Technical field
The present invention relates to wire logging techniques field, especially relate to a kind of formation tester ground control system.
Background technology
The ground control system of formation tester can be formation tester provides high-power ac power and dc source, and realizes cable communication and the degree of depth acquisition function of instrument.
But mainly there is following defect or deficiency in the ground control system of formation tester of the prior art:
1) existing ground control system electric interfaces must use 110v/60Hz power supply, and the power supply standard that different loggers provides, signaling interface are all not quite similar, and thus cannot apply under the environment such as 220V/50Hz;
2) existing ground control system advanced treating can only process 4 line signals, and no-station pole canopy detects;
3) existing ground control system is by double-serial port and computer communication, backward in technique;
4) existing ground system volume is large, heavy, and inconvenience is installed in transport.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of formation tester ground control system, improves the interface compatibility performance of ground system, also can improve portable performance.
In order to solve the problems of the technologies described above, the invention provides a kind of formation tester ground control system, described system is connected with downhole instrument by logging cable, and described system comprises:
Control panel, carries out downhole instrument data acquisition, cable depth and tension signal collection;
High-voltage DC power supply, realizes downhole instrument direct current supply;
High-voltage ac power, realizes downhole instrument Alternating Current Power Supply;
Signal processing module, carries out post processing to downhole instrument data, cable depth and the reason signal that described control panel collects.
Wherein, described control panel comprises modem circuit, and described modem circuit comprises transmitting branch and receiving branch, is respectively used to the modulation and demodulation of signal.
Wherein, described transmitting branch comprises: CPU, decoder, preamplifier and driving.
Wherein, described receiving branch comprises: preamplifier, wave filter, analog-digital converter, decoder and CPU.
Wherein, described control panel comprises advanced treating circuit, and described advanced treating circuit comprises: pulse shaping device, walking direction, filtering debounce, pulse counter, and CPU.
Wherein, described control panel comprises tension force treatment circuit, and described tension force treatment circuit comprises: instrument amplifier, fader, analog-digital converter, and CPU.
Wherein, described signal processing module comprises acquisition process unit, and described acquisition process unit comprises:
Data decoding subelement, to decoding data;
Data echo subelement, calls calibration file and calculates, by result of calculation by list or curve map mode echo on multiple data window;
Order and control inerface, receive the instruction of operating personnel, be issued to downhole instrument or control panel after coding.
Wherein, described acquisition process unit, is kept at data processed result in special CRF formatted file.
Wherein, described signal processing module comprises post-processing unit, and described post-processing unit carries out format conversion to CRF file, is driven and becomes degree of depth driving, carry out data edition and curve display by the time.
Wherein, described post-processing unit also calculates in-place permeability and mobility according to pressure measurement data.
Compared with prior art, such scheme of the present invention has following beneficial effect:
Compatible raising, can adapt to multiple well logging cart both domestic and external, drag the environment for use of sled;
Electrical design is advanced, carries out modularized design, combined and instant according to function, and it is multiplexing to carry out power supply, is convenient to reduce system cost;
The signaling interface of multiple cable Straight line unit can be adapted to;
Smaller volume, weight reduces by half, easy transportation and installation.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from manual, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in manual, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for manual, is used from and explains technical scheme of the present invention, do not form the restriction to technical solution of the present invention with the embodiment one of the application.
Fig. 1 is portable type ground system and the environment for use schematic diagram of the embodiment of the present invention;
Fig. 2 is the modem circuit plated construction block diagram in the control panel of the embodiment of the present invention.
Fig. 3 is the degree of depth in the control panel of the embodiment of the present invention and tension force Acquisition Circuit structured flowchart.
Fig. 4 is data acquisition and the poster processing soft FB(flow block) of the embodiment of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
The formation tester ground control system of the embodiment of the present invention, it is the portable type ground control system be made up of a set of floor panel and supporting control software design, for controlling formation tester BASICRCT, realizing stratum pressure measurement and sampling, pressure measurement data being made an explanation simultaneously.
As shown in Figure 1, this ground control system mainly comprises four parts: high-voltage ac power, high-voltage DC power supply, control panel and be provided with the computer of data acquisition software and the poster processing soft.
Wherein, control panel is the hardcore of system, and its major function is downhole instrument data acquisition, cable depth and tension signal collection.
Composition graphs 1, this ground control system is placed on well logging cart or drags in sled, is connected with downhole instrument by seven core logging cables on winch.Operating personnel can the status data of Real-time Collection downhole instrument by ground control system, and control instrument has carried out pressure measurement, sampling operation.Ground control system also can gather cable depth from well logging cart Straight line unit and tension signal, to determine job position and operating environment.
For adapting to the multiple well logging cart environment of home and abroad, compatible 110V60Hz and 220V50Hz of all devices two kinds of power supply standards.
High Level AC Voltage source power 1000W, can provide 600V alternating voltage, realizes downhole instrument Alternating Current Power Supply.
High voltage direct current source power 1500W, can provide 600V DC voltage, realizes downhole instrument direct current supply.
The output voltage of high-voltage ac power and high-voltage DC power supply is all transported to downhole instrument by control panel.Because ground control system is modularized design, therefore two kinds of high voltage sourcies both can use system autogamy power supply, also can option and installment well logging cart original power supply, as long as interface and control panel compatibility.
Control panel is the maincenter of ground control system, and it is the tie point of ground control system and downhole instrument, and being also the tie point of the external environment condition such as ground control system and well logging cart, is also the tie point between the inner each equipment of ground control system.
Control panel inside is provided with modem circuit, can realize cable telemetry communication by this modem circuit, its concrete structure block diagram as shown in Figure 2:
At sending direction, downhole data is after CPU serial ports receives, and write sends buffer area, after code identification, the corresponding transmission waveform template prestored in selection circuit, produces a pair anti-phase differential signal, after enlarge leadingly and electric current drive, be dealt on cable through transformer.It is more than signal madulation process.
Receive direction: first through one-level enlarge leadingly and bandpass filtering, send into digital processing circuit after analog-to-digital conversion, then decode, obtain initial data, then data are sent to ground-based computer by asynchronous serial port after RS232 level conversion.It is more than signal receiving process.
Control panel inside is also provided with advanced treating circuit and tension force treatment circuit, respectively in order to process cable depth and tension force.Its structured flowchart is as shown in Figure 3:
Advanced treating circuit, for the depth coding signal of input, first carries out pulse-shaping, removes interference, then carries out phase compare, judge direction, then carry out step-by-step counting, and numerically will pass to CPU.
Preferably, this advanced treating circuit adopts Schmidt trigger to carry out pulse-shaping, both can process four-wire system (A+, A-, B+, B-) depth coding signal, also can process two-wire system (A, B) depth coding signal.Thus the degree of depth that can adapt to different coding wheel exports.
Tension force treatment circuit, for the tension signal of input, first carries out instrument amplification, then carries out Gain tuning according to range of signal, then carry out AD conversion, become data signal and give CPU.The range of tension force treatment circuit can select 3 kinds of scopes by wire jumper, is 0 ~ 0.75V, 0 ~ 2V, 0 ~ 10V respectively, can refer to restatement by compatible multiple cable like this.
Tension force treatment circuit by RS232 bus and computer communication, by the depth tension signal real-time Transmission that collects to ground system software.
Fig. 4 is the software functional block diagram of the ground control system of the embodiment of the present invention.As shown in Figure 4, the ground system software all sending into computer from the status data of downhole instrument and the degree of depth of Straight line unit and tension data processes.Systems soft ware in the present embodiment is formed primarily of acquisition software (herein also referred to as mixElis acquisition software) and the poster processing soft (herein also referred to as PTS the poster processing soft) two parts.
Wherein, mixElis acquisition software primary responsibility to decoding data, and calls calibration file and calculates, by result of calculation by the mode such as list, curve map echo on multiple data window; Received the instruction of operating personnel simultaneously by control inerface, be issued in downhole instrument or advanced treating circuit after coding; And the result of acquisition software is kept in special CRF formatted file.
PTS the poster processing soft primary responsibility carries out format conversion to CRF file, is driven and becomes degree of depth driving, and can carry out data edition and curve display by the time; For pressure measurement data, also can caller further, calculate in-place permeability and mobility, etc.
Although it is apparent to those skilled in the art that embodiment disclosed by the present invention as above, the embodiment that described content only adopts for ease of understanding the present invention, and be not used to limit the present invention.Those of skill in the art belonging to any the present invention; under the prerequisite not departing from the spirit and scope disclosed by the present invention; any amendment and change can be carried out in the form implemented and details; but scope of patent protection of the present invention, the scope that still must define with appending claims is as the criterion.
Claims (8)
1. a formation tester ground control system, is characterized in that, described system is connected with downhole instrument by logging cable, and described system comprises:
Control panel, carries out downhole instrument data acquisition, cable depth and tension signal collection; Described control panel comprises advanced treating circuit and tension force treatment circuit, and described advanced treating circuit comprises pulse shaping device, walking direction, filtering debounce, pulse counter and CPU, and described advanced treating circuit adopts Schmidt trigger to carry out pulse-shaping; Described tension force treatment circuit comprises instrument amplifier, fader, analog-digital converter and CPU, and the range of described tension force treatment circuit can select 3 kinds of scopes by wire jumper;
High-voltage DC power supply, realizes downhole instrument direct current supply;
High-voltage ac power, realizes downhole instrument Alternating Current Power Supply;
Signal processing module, carries out post processing to downhole instrument data, cable depth and the reason signal that described control panel collects.
2. formation tester ground control system as claimed in claim 1, is characterized in that,
Described control panel comprises modem circuit, and described modem circuit comprises transmitting branch and receiving branch, is respectively used to the modulation and demodulation of signal.
3. formation tester ground control system as claimed in claim 2, is characterized in that,
Described transmitting branch comprises: CPU, decoder, preamplifier and driving.
4. formation tester ground control system as claimed in claim 2, is characterized in that,
Described receiving branch comprises: preamplifier, wave filter, analog-digital converter, decoder and CPU.
5. the formation tester ground control system as described in any one of Claims 1-4, is characterized in that,
Described signal processing module comprises acquisition process unit, and described acquisition process unit comprises:
Data decoding subelement, to decoding data;
Data echo subelement, calls calibration file and calculates, by result of calculation by list or curve map mode echo on multiple data window;
Order and control inerface, receive the instruction of operating personnel, be issued to downhole instrument or control panel after coding.
6. formation tester ground control system as claimed in claim 5, is characterized in that,
Described acquisition process unit, is kept at data processed result in special CRF formatted file.
7. formation tester ground control system as claimed in claim 6, is characterized in that,
Described signal processing module comprises post-processing unit, and described post-processing unit carries out format conversion to CRF formatted file, is driven and becomes degree of depth driving, carry out data edition and curve display by the time.
8. formation tester ground control system as claimed in claim 7, is characterized in that,
Described post-processing unit also calculates in-place permeability and mobility according to pressure measurement data.
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| CN201310295006.1A CN103334743B (en) | 2013-07-15 | 2013-07-15 | A kind of formation tester ground control system |
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| CN201310295006.1A CN103334743B (en) | 2013-07-15 | 2013-07-15 | A kind of formation tester ground control system |
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| CN103334743B true CN103334743B (en) | 2016-04-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105626031A (en) * | 2014-10-27 | 2016-06-01 | 中国石油集团长城钻探工程有限公司 | Portable logging ground system |
| CN105487128A (en) * | 2016-01-19 | 2016-04-13 | 中国海洋石油总公司 | Ground device used for relief well electromagnetic detection and positioning tool |
| CN107558997A (en) * | 2017-08-14 | 2018-01-09 | 中国石油集团渤海钻探工程有限公司 | Mass data downhole stored method for wireline logging |
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| CN102913235A (en) * | 2012-10-29 | 2013-02-06 | 陕西联盟物流有限公司 | Logging data transmitting system |
| CN202850989U (en) * | 2012-09-21 | 2013-04-03 | 中国海洋石油总公司 | High speed data transmission system based on single-core logging cable |
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| US4227405A (en) * | 1979-04-06 | 1980-10-14 | Century Geophysical Corporation | Digital mineral logging system |
| CN201196088Y (en) * | 2008-05-15 | 2009-02-18 | 中国海洋石油总公司 | High-speed data transmission apparatus used for petroleum logging |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |