CN102733799B - Well drilling information acoustic wave transmission relay device based on drilling string information channel - Google Patents

Well drilling information acoustic wave transmission relay device based on drilling string information channel Download PDF

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Publication number
CN102733799B
CN102733799B CN201210212817.6A CN201210212817A CN102733799B CN 102733799 B CN102733799 B CN 102733799B CN 201210212817 A CN201210212817 A CN 201210212817A CN 102733799 B CN102733799 B CN 102733799B
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acoustic wave
relay device
sound wave
transducer assembly
transmitting
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CN102733799A (en
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管志川
刘永旺
赵国山
李志刚
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China University of Petroleum East China
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China University of Petroleum East China
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Abstract

The invention relates to a drilling information transmitting device in the field of petroleum and natural gas drilling engineering, in particular to a well drilling information acoustic wave transmission relay device based on a drilling string information channel. The well drilling information acoustic wave transmission relay device comprises an acoustic wave sensor, a modulator circuit, a power source and a transmitting transducer assembly, wherein the modulator circuit receives electric signals outputted from the acoustic wave sensor; effective data are obtained after the electric signals are processed, and are transmitted to the transmitting transducer assembly; and the power source is used for supplying power for the acoustic wave sensor, the modulator circuit and the acoustic wave transmitting transducer assembly. The well drilling information acoustic wave transmission relay device can effectively work in an underground complex environment for a long time, the transmission distance of acoustic waves in a drilling string is lengthened, effective detection and directional signal transmission are ensured, and interference of a ring is decreased.

Description

Drilling information sonic transmissions relay based on drill string channel
Technical field
The present invention relates to oil and gas drilling engineering field with boring information carrying means, specifically a kind of drilling information sonic transmissions relay based on drill string channel.
Background technology
According to the present situation of world oil and gas drilling engineering and to the prediction of development in the future, oil drilling industry will face more complicated geological conditions and worse natural environment, recognizes that in time down-hole drilling parameter and geologic parameter are the important leverages that reduces drilling well risk, improves drilling benefit.The drilling information transmission means having proposed at present and apply mainly contains four kinds of wire transmission, drilling fluid transmission, electromagnetic transmission and sonic transmissions.
Wire transmission mode utilizes cable to do the carrier of communication, down-hole information can be transferred to ground, also can be by surface instruction communication to downhole tool and equipment, realize quick, a large amount of and transmitted in both directions of information.But this kind of mode exists deficiency, in drilling process the rotation of drill string easily cause cable rub or twist disconnected, normally the carrying out of impact construction.
Drilling fluid (mud) transmission means utilizes the compression wave of drilling fluid as signal transport vehicle, and drilling fluid fluid column carries out communication as channel.Due to the restriction of compression wave spread speed in drilling fluid, this kind of transmission means message transmission rate is slower, and transmission per unit of time information content is few, and transmitting procedure is easily affected by noise.Which has dependence to drilling fluid in addition, and can not realize the transmitted in both directions of information, has limited the scope of application of this kind of information transmission mode.
Electromagnetic transmission mode has realized the transmitted in both directions of information, also broken away from the dependence to drilling fluid, but also exist shortcoming: in stratum, have larger decay, and there is to dependence on stratum, different stratum has different electromagnetic propertys, this can cause the versatility variation of transmission system, in addition, its cost is higher, and will realize long Distance Transmission, must have powerful driving power, it is more difficult wanting to reach these conditions at down-hole narrow space.
Drilling information sonic transmissions mode is using drill string as acoustic signal transmission channel, using sound wave as signal vehicle, carries out the mode of the wireless transmission of down-hole information.Due to utilize drilling rod as down-hole information high-speed transfer with sound wave channel, whether and character the existence that this information transmission mode need not depend on drilling fluid, be not subject to the interference of magnetisable material in stratum, this provides advantageous condition for down-hole information high-speed transfer.This transmission means also has that device structure is simple, cost is lower, is easy to the advantages such as directional transmissions and spread speed are exceedingly fast in addition, and becomes one of focus of current down-hole information transmission technique field research.But sound wave is propagated the serious problem of decay existing and is being perplexed spudder author in drill string always.How to overcome the decay of sound wave in drill string and become the difficult problem that the success or not of drilling information sonic transmissions technology must solve.
In order to overcome the above problems, the present invention has done useful improvement.
Summary of the invention
(1) technical problem that will solve
The object of the invention is to have overcome in existing drilling information sonic transmissions mode, sound wave is propagated the problem that exists decay serious in drill string, thereby can increase the effective propagation path of acoustic signals.
(2) technical scheme
The present invention is achieved by the following technical solutions: a kind of drilling information sonic transmissions relay based on drill string channel, comprise sonic sensor, modulation circuit, power supply and transmitting transducer assembly, described modulation circuit receives the signal of telecommunication of described sonic sensor output, obtain valid data through processing, and these valid data are transferred to transmitting transducer assembly; Described power supply is used to sonic sensor, modulation circuit and the power supply of transmitting transducer assembly.
Particularly, described modulation circuit comprises signal conditioning circuit, the down-hole department of computer science signal transmission circuit of unifying;
Described signal conditioning circuit receives the signal of telecommunication of described sonic sensor output, and amplify, filtering and adjustment, then this signal of telecommunication is sent to down-hole computer system;
The signal of telecommunication that described down-hole computer system receiving signal reason circuit sends, and by obtaining valid data after demodulation code, and preserve this valid data; Then recompile and the described valid data of modulation, and by this valid data output;
Described signal transmission circuit receives the signal of the valid data that send from down-hole computer system, and sends to transmitting transducer assembly.
Further, described down-hole computer system is electrically connected respectively with described signal conditioning circuit and signal transmission circuit.
In addition, this drilling information sonic transmissions relay also comprises that sound wave receives joint; Described sonic sensor is accelerometer, and this accelerometer is arranged on described sound wave and receives the position that joint contacts.
Further, also comprise accelerometer positioning body, this accelerometer positioning body receives joint with described sound wave and is fixedly connected with respectively with accelerometer.
Further, also comprise transmitting terminal joint, described transmitting transducer assembly is pressed in described transmitting terminal joint by setscrew nut.
Further, also comprise transducer adjusting ring, this transducer adjusting ring is arranged between described transmitting transducer assembly and described setscrew nut.
Further again, also comprise protection of instrumentation cylinder; Described transmitting terminal joint receives joint with sound wave and is connected and forms connecting elements, and this connecting elements and protection of instrumentation cylinder form seal chamber.
In addition, described transmitting transducer assembly comprises the thin circular ring plate of ring-type of radial polarization, and the material of the thin circular ring plate of this ring-type is lead lanthanum zirconate titanate (PLZT) electrooptical ceramics material; The thin circular ring plate quantity of described ring-type is at least two, and between the thin circular ring plate of described ring-type, adopts machinery series connection and the mode of circuit parallel connection connects; The thin circular ring plate polarization of described two adjacent ring-types is contrary.
Further, described transmitting transducer assembly also comprises metal bezel plate, metal back cover plate and electrode slice; Between the thin circular ring plate of described ring-type and described metal bezel plate, metal back cover plate and electrode slice, pass through epoxy resin glue glued adhesion.
(3) beneficial effect
Compare with product with prior art, the present invention has the following advantages:
1, adopt broadband transducer, determine frequency of utilization according to different drill column structures, strengthened versatility, guarantee effectively to detect and directional transmissions signal, reduce ring and disturb.
2, the bulk strength of device is strong, can meet the needs of underground work.
3, can effectively work long hours in the complex environment of down-hole, increase the transmission range of sound wave in drill string.
4, can realize the fast transport of information, accelerate the understanding of ground construction personnel to down-hole situation and the reaction that down-hole complex accident is made, reduce drilling well risk, improve drilling benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is A-A generalized section of the present invention;
Fig. 3 is B-B generalized section of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
A kind of drilling information sonic transmissions relay based on drill string channel as shown in Figure 1, receives joint sealing assembly 7, axle seal assembly 8, transducer adjusting ring 9, setscrew nut 10, modulation circuit 11, accelerometer positioning body 12, accelerometer 13, protection cylinder alignment pin 14 and sound wave reception joint 15 by transmitting terminal joint 1, transmitting joint sealing assembly 2, transmitting transducer assembly 3, protection of instrumentation cylinder 4, instrument room 5, power supply 6, sound wave and forms.
Transmitting terminal joint 1 is threaded connection and is integrated with sound wave reception joint 15, for transmitting axial load and moment of torsion; Axle seal assembly 8 is installed on transmitting terminal joint 1 and sound wave and receives the outer rim that is threaded of joint 15, for preventing that hollow borehole liquid from passing through; The connecting elements of transmitting terminal joint 1 and sound wave reception joint 15 and protection of instrumentation cylinder 4 form the cavity of a sealing, for installing and place interior instrument; Sound wave receives joint sealing assembly 7 and transmitting joint sealing assembly 2 enters the cavity of installation and placement interior instrument for preventing outer space drilling fluid; Protection cylinder alignment pin 14 connects as one transmitting terminal joint 1 and connector and protection of instrumentation cylinder 4 that sound wave receives joint 15, realizes relatively static; Transmitting transducer assembly 3 is pressed in transmitting terminal joint 1 place by setscrew nut 10, realizes the conversion of electroacoustic signal; Adjusting ring 9 is between transmitting transducer assembly 3 and setscrew nut 10, for regulating the distance gap between transmitting transducer assembly 3 and setscrew nut 10 and preventing the hard contact on two sides.
As shown in Figure 2, instrument room 5 is threaded connection at transmitting terminal joint 1, and for power supply 6, modulation circuit 11, accelerometer 13 are installed, this accelerometer 13 is as sonic sensor, and other the sensor such as the transducer of can exerting oneself substitutes.Power supply 6 can be transmitting transducer assembly 3 and accelerometer 13 provides energy.Modulation circuit 11 is placed in described instrument room 5, comprises signal conditioning circuit, down-hole computer system and signal transmission circuit, and this down-hole computer system is connected respectively with signal conditioning circuit and signal transmission circuit.The effect of signal conditioning circuit is: by receiving sensor be that the signal of telecommunication that accelerometer 13 is exported amplifies, filtering and adjustment, being received by down-hole computer system.The effect of down-hole computer system is: monitor and ensure the normal operation of whole repeater circuit system; Receive the acoustic signals after conditioning, and obtain valid data by demodulation code; Preserve valid data; To data recompile and modulation, export to signal transmission circuit.The effect of signal transmission circuit is: receive from the signal of down-hole computer system, and provide driving for transmitting transducer assembly 3.
As shown in Figure 3, accelerometer 13 is arranged in instrument room 5, and receives joint 15 one end near sound wave, and it receives joint 15 with sound wave and contacts, and passes the acoustic signals of coming for measuring bottom.Accelerometer positioning body 12 receives joint 15 with described sound wave and is fixedly connected with respectively with accelerometer 13, receives the close contact of joint 15 for realizing accelerometer 13 and sound wave.The inverting element of described transmitting transducer assembly 3 is selected lead zirconate titanate (PZT) piezoceramic material of radial polarization, piezoelectric is shaped as the thin circular ring plate of ring-type, the thin circular ring plate of this ring-type is at least two, between them, adopt machinery series connection and the mode of circuit parallel connection connects, the polarised direction of adjacent two thin circular ring plates of ring-type is contrary, thereby makes the extensional vibration of transmitting transducer assembly 3 entirety can be superimposed.Transmitting transducer assembly 3 also comprises metal bezel plate, metal back cover plate and electrode slice; The front shroud material of transmitting transducer assembly 3 is duralumin or duralumin, and back shroud material is brass.Between the thin circular ring plate of ring-type and electrode slice and the forward and backward cover plate of metal, use epoxy resin glue glued adhesion.
Described power supply 6 is high temperature resistant lithium battery or chargeable high temperature resistant lithium battery.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1.一种基于钻柱信道的钻井信息声波传输中继装置，其特征在于，包括声波传感器、调制电路、电源和发射换能器总成，所述的调制电路接收所述的声波传感器输出的电信号，将该电信号处理而获得有效数据，并将该有效数据传输给发射换能器总成；所述的电源用于为声波传感器、调制电路和发射换能器总成供电；1. A drilling information sound wave transmission relay device based on a drill string channel, characterized in that it comprises a sound wave sensor, a modulation circuit, a power supply and a transmitting transducer assembly, and the modulation circuit receives the output of the sound wave sensor An electrical signal, which is processed to obtain valid data, and transmits the valid data to the transmitting transducer assembly; the power supply is used to supply power to the acoustic wave sensor, modulation circuit and transmitting transducer assembly; 所述的调制电路包括信号调理电路、井下计算机系统和信号发射电路；The modulation circuit includes a signal conditioning circuit, a downhole computer system and a signal transmitting circuit; 所述的信号调理电路接收所述的声波传感器输出的电信号，并进行放大、滤波和调整，然后将该电信号发送给井下计算机系统；The signal conditioning circuit receives the electrical signal output by the acoustic wave sensor, amplifies, filters and adjusts the electrical signal, and then sends the electrical signal to the downhole computer system; 所述的井下计算机系统接收信号调理电路发出的电信号，并通过解调和解码后获得有效数据，并保存该有效数据；然后重新编码和调制所述的有效数据，并将该有效数据输出；The downhole computer system receives the electrical signal sent by the signal conditioning circuit, obtains valid data after demodulation and decoding, and saves the valid data; then recodes and modulates the valid data, and outputs the valid data; 所述的信号发射电路接收来自井下计算机系统发出的有效数据的信号，并发送给发射换能器总成。The signal transmitting circuit receives the effective data signal from the downhole computer system and sends it to the transmitting transducer assembly. 2.根据权利要求1所述的钻井信息声波传输中继装置，其特征在于，所述的井下计算机系统与所述的信号调理电路和信号发射电路分别连接。2. The relay device for acoustic wave transmission of drilling information according to claim 1, wherein the downhole computer system is connected to the signal conditioning circuit and the signal transmitting circuit respectively. 3.根据权利要求1所述的钻井信息声波传输中继装置，其特征在于，还包括声波接收接头；所述的声波传感器为加速度计，该加速度计安装在与所述的声波接收接头接触的位置。3. The drilling information sound wave transmission relay device according to claim 1, characterized in that, it also comprises a sound wave receiving joint; the said sound wave sensor is an accelerometer, and the accelerometer is installed in the contact with the said sound wave receiving joint Location. 4.根据权利要求3所述的钻井信息声波传输中继装置，其特征在于，还包括加速度计定位体，该加速度计定位体与所述的声波接收接头和加速度计分别固定连接。4. The relay device for acoustic wave transmission of drilling information according to claim 3, further comprising an accelerometer positioning body, the accelerometer positioning body is fixedly connected to the acoustic wave receiving joint and the accelerometer respectively. 5.根据权利要求3所述的钻井信息声波传输中继装置，其特征在于，还包括发射端接头，所述的发射换能器总成通过定位螺母压紧于所述的发射端接头处。5 . The drilling information sound wave transmission relay device according to claim 3 , further comprising a transmitting end joint, and the transmitting transducer assembly is pressed against the transmitting end joint by a positioning nut. 6 . 6.根据权利要求5所述的钻井信息声波传输中继装置，其特征在于，还包括换能器调节圈，该换能器调节圈设置于所述发射换能器总成与所述的定位螺母之间。6. The drilling information sound wave transmission relay device according to claim 5, further comprising a transducer adjustment ring, the transducer adjustment ring is arranged between the transmitting transducer assembly and the positioning between the nuts. 7.根据权利要求5所述的钻井信息声波传输中继装置，其特征在于，还包括仪器保护筒；所述的发射端接头与声波接收接头相连并构成连接构件，该连接构件与仪器保护筒构成密封腔体。7. The drilling information acoustic wave transmission relay device according to claim 5, characterized in that it also includes an instrument protection tube; the transmitting end joint is connected with the acoustic wave receiving joint to form a connecting member, and the connecting member is connected with the instrument protecting tube Form a sealed cavity. 8.根据权利要求1所述的钻井信息声波传输中继装置，其特征在于，所述的发射换能器总成包括轴向极化的环状薄圆环片，该环状薄圆环片的材质为锆钛酸铅压电陶瓷材料；所述的环状薄圆环片数量至少为两个，且所述的环状薄圆环片之间采用机械串联，而该环状薄圆环片上的电路采用并联的方式连接；相邻的两个环状薄圆环片极化相反。8. The drilling information sound wave transmission relay device according to claim 1, characterized in that, the transmitting transducer assembly comprises an axially polarized annular thin ring piece, and the annular thin ring piece The material is lead zirconate titanate piezoelectric ceramic material; the number of the annular thin ring pieces is at least two, and the annular thin ring pieces are mechanically connected in series, and the annular thin ring pieces The circuits on the chip are connected in parallel; two adjacent ring-shaped thin ring chips have opposite polarizations. 9.根据权利要求8所述的钻井信息声波传输中继装置，其特征在于，所述的发射换能器总成还包括金属前盖板、金属后盖板和电极片；所述的环状薄圆环片与所述金属前盖板、金属后盖板及电极片之间通过环氧树脂胶胶合。9. The drilling information sound wave transmission relay device according to claim 8, characterized in that, the transmitting transducer assembly also includes a metal front cover, a metal rear cover and electrode sheets; the annular The thin ring piece is bonded with the metal front cover, the metal back cover and the electrode sheet by epoxy glue.
CN201210212817.6A 2012-06-26 2012-06-26 Well drilling information acoustic wave transmission relay device based on drilling string information channel Expired - Fee Related CN102733799B (en)

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CN112636806B (en) * 2020-11-23 2023-09-08 中石化石油工程技术服务有限公司 A drill collar type downhole information acoustic wave transmission relay device
CN114704250A (en) * 2022-03-28 2022-07-05 杭州丰禾石油科技有限公司 Sound wave wireless transmission method and device, electronic equipment and storage medium

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