CN2599238Y

CN2599238Y - Under well parameter measuring radio transmission device

Info

Publication number: CN2599238Y
Application number: CNU022623426U
Authority: CN
Inventors: 斌李; 李斌; 王正垠; 顾中国; 卢晓君; 李赤文; 阎志超
Original assignee: XI'AN HUASHUN MEASURING EQUIPMENT CO Ltd
Current assignee: XI'AN HUASHUN MEASURING EQUIPMENT CO Ltd
Priority date: 2002-10-18
Filing date: 2002-10-18
Publication date: 2004-01-14
Anticipated expiration: 2012-10-18

Abstract

The utility model relates to an underground parameter measuring wireless transmission device which is composed of an underground wireless transmission signal and a ground wireless receiving signal. Electric signals collected by an underground pressure sensor, a temperature sensor and a flow sensor are sent into a sampling control module, the signals collected by the sampling control module respectively control a first driver and a second driver after the signals are decoded, the first and the second drivers respectively drive vibrators to vibrate, and the encoded vibration signals are transmitted to the well mouth through oil tubes. An acceleration sensor in the ground receiving apparatus converts the vibration signals into electric signals, the signals are enlarged by a frequency selective amplifier, and then a signal processing and decoding module processes and decodes the signals, and outputs the signals to a display indicator in order to display the parameters of the underground pressure, the temperature and the flow capacity. The device has simple structure and reliable operation, and can be used by matching with the sensors of pressure, temperature, flow capacity, etc. The utility model is widely suitable for various industries such as the oilfield production well, the natural gas production well, the underground hot water well, etc., and has better economic and social benefits.

Description

Downhole parameters is measured radio transmitting device

One, technology neck city

The utility model relates to downhole parameters and measures radio transmitting device, is specially adapted to oil drilling or its drilling well industry down-hole pressure, temperature, flow parameter are sent to the aboveground a kind of device that shows and write down by wireless transmission method.

Two, background technology

Existing downhole wireless parameter transmission system comprises the drilling well drilling bar mud-pulse method of utilizing, and sound wave oil country tubular good transmission method knocks the pipeline transmission method.The mud-pulse method is only used in the drilling process of mud is arranged, and can't use in producing well; Sound wave oil country tubular good transmission method is subjected to the influence of pipeline physical change, is that the sound transmission channel of medium will change with the pipeline, causes the sound wave frequency band to change and difficult being extensive use of; The mode of knocking is to adopt jump bit to knock pipeline transmission information, and its shortcoming is that transfer rate is low, the error code height.

Three, summary of the invention

Goal of the invention of the present utility model provides a kind of simple in structure, transmission channel is reliable, in relative broad range, be suitable for the downhole wireless transfer of data, can be used with sensors such as the pressure of down-hole, temperature, flows, but extended immobilization realizes that in underground work the pipe parameter of downhole parameters monitoring is measured radio transmitting device.

Technical solution of the present utility model is achieved in that and comprises by downhole wireless emission and aboveground wireless receiving signal two parts and forming, improvements of the present utility model are also to comprise underground pressure sensor, temperature pick up, the signal of telecommunication of flow transmitter collection is sent in the controlling of sampling module in the lump, the signal that the controlling of sampling module is gathered is after numbering, code signal is controlled first driver and second driver respectively, first, second driver is drive vibrator vibration respectively again, the coding vibration signal is delivered to well head through oil pipe, the acceleration transducer that is fixed in the aboveground receiving system of well head is converted to the signal of telecommunication with vibration signal, after frequency-selective amplifier amplifies, with decoder module signal is handled decoding by the signal processing, output to and show the indicated number down-hole pressure, temperature and flow parameter, above-mentioned said oscillator comprise on the output shaft of direct current generator and are connected with eccentric escapement.

The utility model compared with prior art, it is simple in structure, reliable operation, in relative broad range, be suitable for the downhole wireless data transmission device, can be used with sensors such as the pressure of down-hole, temperature, flows, but extended immobilization realizes easily that in underground work the production scene monitors in real time.Extensively being suitable for every profession and trades such as Petroleum Production well, gas production, geothermal water well uses.Have better economic and social benefit.

Four, description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 launches electric theory diagram for downhole wireless of the present utility model;

Fig. 3 is an aboveground wireless transmit electricity theory diagram of the present utility model;

Fig. 4 is an oscillator structural representation of the present utility model;

Fig. 5 is a down-hole of the present utility model radiating circuit schematic diagram;

Fig. 6 downhole wireless of the present utility model receives the launching simulation circuit theory diagrams;

Fig. 7 aboveground wireless receiving emission digital circuit schematic diagram of the present utility model.

Five, the specific embodiment

Accompanying drawing is a specific embodiment of the present utility model.

Below in conjunction with accompanying drawing particular content of the present utility model is described further.

With reference to shown in Figure 1, be fixed with silo launcher 15 and aboveground receiving system 16 on the two ends of oil pipe 18 respectively, the oil pipe outside is with sleeve pipe 17, and oil pipe 18, sleeve pipe 17 all are inserted in the oil reservoir 19.

With reference to Fig. 2, shown in Figure 3, this device comprises pressure sensor 1, temperature pick up 2, flow transmitter 3, controlling of sampling module 4, first, second driver 5,6 and oscillator 7,8 silo launchers of forming are fixed in suitable position, down-hole, pressure sensor 1, temperature pick up 2 and flow transmitter 3 are experienced the parameter of environment, physical quantity is converted to electric weight, coding after 4 samplings of controlling of sampling module, control first driver 5 drive vibrator, 7 vibrations and 7 vibrations of second driver, 6 drive vibrator respectively, the coding vibration signal is delivered to well head through oil pipe 18, the acceleration transducer 9 that is fixed in the aboveground receiving system 16 of well head is converted to the signal of telecommunication with vibration signal, after frequency-selective amplifier 10 amplifies, handle decoding by the signal processing with 11 pairs of signals of decoder module, output to demonstration indication 12 and show down-hole pressures, parameter such as temperature and flow.

Fig. 4 is the oscillator structural representation, and it is to be connected with eccentric escapement on the output shaft of direct current generator.After direct current generator rotated, drive eccentric wheel swing generation coding vibration signal is wireless sent into aboveground receiving system.

Fig. 5 is a down-hole radiating circuit schematic diagram, and amplifier U3, U4 and R3, R4 form the amplification adaptation unit, are connected with sensors such as pressure, flows, signal is amplified the A/D translation interface of delivering to U1, U1 is the single-chip microcomputer MPS430F149 of band A/D conversion, and J4 is connected with oscillator, and the control oscillator transmits.U2 is voltage-stabilized power supply chip TPS333, is connected with the power end of other integrated chips.

Fig. 6 is aboveground receiving system simulation part parallel circuit figure; D1, D2 form input protection circuit among the figure; link to each other with the vibrating sensor that is installed in well head; U2 is the input amplifier VCA610 that has gain control; U7, C17, D3, R23, R30, R31, C16 have constituted the gain control unit of U2 jointly, and the sampled signal of U7 is exported by wave filter U3.U3 is active power filtering chip MAX275 among the figure, constitutes two-stage bandwidth-limited circuit, the other two-way narrow band filter that it is exported to R1～R8.U4 is MAX275 and peripheral resistance R 9～R24, and U5 also is that MAX275 and peripheral resistance R 36～R51 form two-way filter, leaches the signal of two oscillator correspondences, and signal outputs to the digital circuit board of Fig. 7 correspondence.U8 is 7805, forms the positive supply mu balanced circuit with C25, C26, C29, C30, and U9 is 7905, forms the negative supply mu balanced circuit with C27, C28, C31, C32, and its output is connected to the positive-negative power end of other chips.

Fig. 7 is aboveground wireless receiving digital circuit schematic diagram, and U2 is dsp chip TMS320C542 among the figure, forms signal processing unit with memory U4, U5 and peripheral circuit U7 etc.A/D conversion U9 is AD7862, finishes the sampling of analog board signal output, after the signal of sampling enters dsp chip, carries out code element identification and decoding.Downhole parameters RS232 mode with standard after deciphering is exported by the SX5 interface.As long as the positive outside display device that connects band standard RS232 interface can show downhole parameters, also can connect the transmitting set of band RS232 interface, data are passed to display device far away.

Claims

1, a kind of downhole parameters is measured radio transmitting device, comprise by downhole wireless emission and aboveground wireless receiving signal two parts and forming, it is characterized in that also comprising underground pressure sensor (1), temperature pick up (2), the signal of telecommunication that flow transmitter (3) is gathered is sent in the controlling of sampling module (4) in the lump, the signal that controlling of sampling module (4) is gathered is after numbering, code signal is controlled first driver (5) and second driver (6) respectively, first, second driver (5,6) distinguish drive vibrator (7 again, 8) vibration, the coding vibration signal is delivered to well head through oil pipe (18), the acceleration transducer (9) that is fixed in the aboveground receiving system (16) of well head is converted to the signal of telecommunication with vibration signal, after frequency-selective amplifier (10) amplifies, with decoder module (11) signal is handled decoding by the signal processing, output to and show that indication (12) shows down-hole pressure, temperature and flow parameter, above-mentioned said oscillator (7,8) comprise on the output shaft of direct current generator (13) and be connected with eccentric escapement (14).