CN202026318U - Logging data transmission system - Google Patents
Logging data transmission system Download PDFInfo
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- CN202026318U CN202026318U CN2010206524366U CN201020652436U CN202026318U CN 202026318 U CN202026318 U CN 202026318U CN 2010206524366 U CN2010206524366 U CN 2010206524366U CN 201020652436 U CN201020652436 U CN 201020652436U CN 202026318 U CN202026318 U CN 202026318U
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Abstract
The utility model provides a logging data transmission system which comprises a ground part and an underground part, wherein the ground part consists of a logging main machine, an embedded type unit and a CO (Central Office) modulation-demodulation unit which are connected in sequence, the underground part consists of a CPE (Customer Premises Equipment) modulation-demodulation unit and a plurality of underground instruments, one of the plurality of underground instruments and the CPE modulation-demodulation unit as well as each two adjacent underground instruments are connected by 10Mbit twisted pairs; the CO modulation-demodulation unit and the CPE modulation-demodulation unit are connected by a logging cable, each underground instrument consists of an Ethernet switch, and an Ethernet interface unit, a collection unit and a probe which are connected with the Ethernet interface unit in sequence, and the Ethernet switch is provided with an MII (Media Independent Interface) and two PHY (Port Physical Layer) interfaces. By adopting a full-Ethernet structure, the logging data transmission system can improve the logging data transmission rate to 800Kb/S, achieves a resisted temperature up to be 150 DEG C, and meets the code rate transmission requirement of a natural gamma instrument.
Description
Technical field
The utility model relates to communication technical field, relates in particular to a kind of high speed Datrex system.
Background technology
Traditional logging system generally includes down-hole part and above ground portion, the a plurality of logging instruments that are arranged at the down-hole are used to gather the various parameters and the signal on stratum, and send the ground-based computer system to by logging cable, by the ground-based computer system to these signals store, analyze, calculate, print, processing such as demonstration, send instruction also for simultaneously other downhole instrument or data are finished relevant work to control it.Therefore, transmission equipment must be set to realize transfer of data between downhole instrument and the ground installation.Done a large amount of research about the transmission of log data both at home and abroad, usual earlier is finished a spot of transfer of data by analogue modulation systems such as frequency modulation, amplitude modulation; Transmission system based on telemetry has appearred in the nineties initial stage, can satisfy the transmission needs that instrument is surveyed in the less imaging of data volume.
Along with the development of modern logging technique, the measurement content of downhole instrument is abundant all the more, and the transmission code rate of existing logging system can't satisfy its requirement.For example, natural gamma ray logging (natural gamma-ray logging) is a kind of method of measuring the natural gamma ray intensity of rock stratum along well bore.Rock generally all contains the radioelement of varying number, and constantly emits ray.For example, in igneous rock, nearer acid, radioactive intensity is bigger; Contain shale the more in sedimentary rock, its radioactivity is stronger.Utilize these rules, according to the gamma ray log result just might mark off boring geologic section, determine sandstone shale content in the section plane of sand shale and judge the permeability of rock stratum qualitatively.A direct purposes of gamma ray log is to be used for finding out radioactivity mineral products (uranium, thorium etc.), and has radioactive other mineral products, as sylvite.Instrument is exactly to utilize above-mentioned natural gamma ray logging method to measure the instrument of the gamma rays that the stratum natural radioactive substance produced.The digital signal of the big data quantity that instrument is gathered needs high-speed uploading to the ground-based computer system, is finished calculating, handles and is shown by the latter, and simply divide stratigraphic horizon.At present, domestic logging community does not also have to satisfy the two-forty of GR instrument code check transmission demand, resistant to elevated temperatures remote measurement transmission equipment.
The utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is how to overcome the defective that the digital signal of big data quantity in the existing logging system can't high-speed uploading.
(2) technical scheme
For solving the problems of the technologies described above, the technical solution of the utility model provides a kind of Datrex system, comprises above ground portion and down-hole part, wherein,
Described above ground portion comprises well logging main frame, embedded unit and the central office CO modem module that connects successively;
Described down-hole part comprises subscriber terminal equipment modulation CPE unit and a plurality of down-holes instrument;
Wherein, between in the instrument of described a plurality of down-holes one and the described CPE modem module, and all connect between per two adjacent described down-hole instrument by twisted-pair feeder;
Be connected by logging cable between described CO modem module and the described CPE modem module;
Wherein, each described down-hole instrument comprises:
Ethernet switch hub has a media independent MII interface and two port physical layer phy interfaces; And
The Ethernet interface unit, collecting unit and the probe that are connected successively with described ethernet switch hub.
Wherein, in the instrument of described a plurality of down-holes is connected with described subscriber terminal equipment CPE modem module by an one port physical layer phy interface; And per two adjacent down-hole instrument divide other port physical layer phy interface to connect by it.
Wherein, described Ethernet interface unit has an independent IP address and directly visits for described well logging main frame and/or other distance hosts.
Wherein, described probe is the GR probe.
(3) beneficial effect
According to Datrex system of the present utility model by being provided with of down-hole instrument having been realized full Ethernet (ethemet) structure, promptly, be not only between each equipment of ground, or even also adopt Ethernet to connect between the downhole instrument, can make the transmission rate of log data significantly be increased to 800Kb/S thus, and 150 ℃ of heatproofs, thereby satisfy the code check transmission demand of GR instrument.
Description of drawings
Fig. 1 is the structured flowchart according to Datrex system of the present utility model;
Fig. 2 is the structured flowchart according to down-hole instrument in the Datrex system of the present utility model.
Embodiment
The Datrex system that the utility model proposes is described as follows in conjunction with the accompanying drawings and embodiments.
Ethernet technology is one of current technology with fastest developing speed, and it has good opening, interconnectivity and advantage such as high-speed.In switching Ethernet, switch should be sent to which port of switch according to the MAC Address determination data frame in the Frame of receiving, because the transmission of the frame between port shielding each other, node does not worry that whether the frame that oneself sends can conflict with the frame generation that other nodes send, and guarantees reliability of data transmission thus by switch the time; Each node owing to access switch can use whole bandwidth simultaneously, rather than each nodes sharing bandwidth, therefore can also promote bandwidth.Twisted-pair cable 10 Base T Ethernets (10M speed switch type FDX Ethernet) are the ethernet technologys that is most widely used, and have advantages such as low-cost and high reliability, and transmission rate can reach 10Mbps.
As shown in Figure 1, Datrex system of the present utility model embodiment comprises aerial part and down-hole part.The down-hole part comprises CPE (Customer Premises Equipment, subscriber terminal equipment) modem module and connected a plurality of be used for the gathering various parameters on stratum and the down-hole instrument of signal (each down-hole instrument is made of one group of ethernet switch hub, Ethernet interface unit, collecting unit and the probe of Fig. 1); Connect by the 10Mbit twisted-pair feeder between per two adjacent down-hole instrument, realize the mutual transmission of log data and/or well logging instruction thus by the 10Base-T network, and also interconnect between one of them down-hole instrument and this CPE modem module, can realize the uplink and downlink transmission of the combined data of the log data of single down-hole instrument or a plurality of down-holes instrument thus by the 10Base-T network by the 10Mbit twisted-pair feeder.Aerial part comprises well logging main frame, embedded unit and CO (Central Office, the central office) modem module that connects successively; This embedded unit (for example PC104 module) is analyzed and is handled the log data that is received by down-hole Yi Chu, pass through after modem module is handled, and the result is shown in the well logging main frame by forms such as numeral, charts checks for operating personnel, operating personnel also can be by the relevant instruction of this main frame input of logging well to control the instrument work of corresponding down-hole.Connect by logging cable between this ground OC modem module and the down-hole CPE modem module, to realize the uplink and downlink transfer of data between aerial part and the down-hole part.
In the specific implementation process, this logging cable is preferably the 7000m logging cable; This OC modem module and CPE modem module all belong to this area mature technology, do not repeat them here, can carry out specialized designs according to the actual requirement of well logging, make its cable core that can utilize cable and armour skin carry out transfer of data, two-way (promptly up, descending) data transmission rate be can realize all greater than 1Mbit/S in conjunction with the 7000m logging cable, the real-time Transmission of log data and the requirement of control in real time satisfied fully; This well logging main frame and embedded unit can be selected any existing equipment that can realize above-mentioned functions for use, do not limit at this.
Realize transfer of data by interactive Ethernet between a plurality of down-holes instrument of present embodiment, go out as shown in fig. 1 that each down-hole instrument comprises ethernet switch hub, Ethernet interface unit, collecting unit and the probe that connects successively.Setting below in conjunction with the down-hole instrument in 2 pairs of transmission systems of the present utility model of accompanying drawing is described in detail.
Preferably, ethernet switch hub adopts monster chip, can be provided with three ports, and wherein two ports are PHY (Port Physical Layer, port physical layer) interface is respectively applied for the ethernet switch hub that connects adjacent upper and lower down-hole instrument by the 10Mbit twisted-pair feeder; Another port is MII (Media Independent Interface, a media independent) interface, is connected with the Ethernet interface unit of down-hole instrument under it, is used to transmit the data of this down-hole instrument.
Preferably, the Ethernet interface unit is by MCU (the Micro Control Unit of band Ethernet interface, microprocessor) and embedded OS form, be used to receive Ethernet data and carry out exchanges data, become ethernet data frame to transmit earthward the packing data of collecting unit with collecting unit; Wherein, can adopt SPI (Serial Peripheral Interface, serial peripheral interface) bus or parallel data grabbing card to carry out exchanges data between Ethernet interface unit and collecting unit.
Preferably, each Ethernet interface unit has an independently ip address, and aboveground main frame even distance host all can be by this down-hole instrument of access to netwoks directly to obtain its data or directly to send instruction to it.
Preferably, collecting unit can comprise analog to digital converter, is digital signal and transmission with the detected analog signal conversion of will popping one's head in.
Above-mentioned setting according to the down-hole instrument, the Datrex system of present embodiment can be realized the up-downgoing transmission of the digital signal of big data quantity, therefore, the probe of this down-hole instrument can be popped one's head in for GR, be used to detect stratum gamma pulse signal, and the embedded unit that is uploaded to above ground portion carries out analyzing and processing, generates formation information and is shown in the well logging main frame.The GR technology is a mature technology, does not repeat them here.
Above execution mode only is used to illustrate the utility model; and be not to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (4)
1. a Datrex system comprises above ground portion and down-hole part, it is characterized in that,
Described above ground portion comprises well logging main frame, embedded unit and the central office CO modem module that connects successively;
Described down-hole part comprises subscriber terminal equipment CPE modem module and a plurality of down-holes instrument;
Wherein, between in the instrument of described a plurality of down-holes one and the described subscriber terminal equipment CPE modem module, and all connect between per two adjacent described down-hole instrument by twisted-pair feeder;
Be connected by logging cable between described central office CO modem module and the described subscriber terminal equipment CPE modem module;
Wherein, each described down-hole instrument comprises:
Ethernet switch hub has a media independent MII interface and two port physical layer phy interfaces; And
The Ethernet interface unit, collecting unit and the probe that are connected successively with described ethernet switch hub.
2. the system as claimed in claim 1 is characterized in that, one in the instrument of described a plurality of down-holes is passed through an one port physical layer phy interface and is connected with described subscriber terminal equipment CPE modem module; And per two adjacent down-hole instrument divide other port physical layer phy interface to connect by it.
3. the system as claimed in claim 1 is characterized in that, described Ethernet interface unit has an independent IP address and directly visits for described well logging main frame and/or other distance hosts.
4. as any described system among the claim 1-3, it is characterized in that described probe is the GR probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206524366U CN202026318U (en) | 2010-12-06 | 2010-12-06 | Logging data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206524366U CN202026318U (en) | 2010-12-06 | 2010-12-06 | Logging data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202026318U true CN202026318U (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206524366U Expired - Lifetime CN202026318U (en) | 2010-12-06 | 2010-12-06 | Logging data transmission system |
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| CN (1) | CN202026318U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094635A (en) * | 2010-12-06 | 2011-06-15 | 北京环鼎科技有限责任公司 | Logging data transmission system and transmission method thereof |
| CN103362499A (en) * | 2013-06-28 | 2013-10-23 | 中国石油天然气集团公司 | Underground and ground information transmission data switching system and method |
| CN103883315A (en) * | 2012-12-21 | 2014-06-25 | 中国石油天然气集团公司 | Downhole and ground information transmission network system and method |
| CN105401932A (en) * | 2014-09-15 | 2016-03-16 | 北京环鼎科技有限责任公司 | Ground system for measurement while drilling |
| CN109995433A (en) * | 2019-03-08 | 2019-07-09 | 北京航空航天大学 | A kind of fibre optic data transmission device for oil well logging equipment |
-
2010
- 2010-12-06 CN CN2010206524366U patent/CN202026318U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094635A (en) * | 2010-12-06 | 2011-06-15 | 北京环鼎科技有限责任公司 | Logging data transmission system and transmission method thereof |
| CN103883315A (en) * | 2012-12-21 | 2014-06-25 | 中国石油天然气集团公司 | Downhole and ground information transmission network system and method |
| CN103362499A (en) * | 2013-06-28 | 2013-10-23 | 中国石油天然气集团公司 | Underground and ground information transmission data switching system and method |
| CN105401932A (en) * | 2014-09-15 | 2016-03-16 | 北京环鼎科技有限责任公司 | Ground system for measurement while drilling |
| CN105401932B (en) * | 2014-09-15 | 2018-05-29 | 北京环鼎科技有限责任公司 | A kind of measurement while drilling ground system |
| CN109995433A (en) * | 2019-03-08 | 2019-07-09 | 北京航空航天大学 | A kind of fibre optic data transmission device for oil well logging equipment |
| CN109995433B (en) * | 2019-03-08 | 2021-01-05 | 北京航空航天大学 | Optical fiber data transmission device for petroleum logging equipment |
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Granted publication date: 20111102 |
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| CX01 | Expiry of patent term |