CN215979345U - Multi-parameter high-speed telemetering instrument - Google Patents
Multi-parameter high-speed telemetering instrument Download PDFInfo
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- CN215979345U CN215979345U CN202121680256.3U CN202121680256U CN215979345U CN 215979345 U CN215979345 U CN 215979345U CN 202121680256 U CN202121680256 U CN 202121680256U CN 215979345 U CN215979345 U CN 215979345U
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Abstract
The utility model provides a multi-parameter high-speed telemetering instrument, which comprises: the power supply module is used for providing a direct-current power supply for the multi-parameter high-speed telemetering instrument; the continuous inclination measurement module is used for detecting and obtaining gravity acceleration components and fluxgate components in at least three directions; the natural gamma measurement module is used for processing the received natural gamma rays in the stratum to obtain a standard square wave signal; the multi-parameter signal processing circuit acquires and obtains a cable head voltage value, a tension value, a well temperature value, a double-well-diameter voltage signal and mud resistivity data; and the high-speed data acquisition and transmission module is communicated with the continuous inclination measurement module, the natural gamma measurement module and the multi-parameter signal processing circuit, processes the received data and performs communication with a ground system. The utility model has the advantages of improving the transmission rate of logging data to 1100kbps, simultaneously having the function of simultaneously measuring various parameters, improving the combination capability of logging instruments, shortening the length of underground instrument strings, along with simple structure, light weight and easy maintenance.
Description
Technical Field
The utility model relates to the technical field of logging instruments of petroleum geological exploration equipment, in particular to a multi-parameter high-speed telemetering instrument.
Background
The well logging technology is continuously improved towards integration, combination, array and imaging, and new requirements are provided for the combination capability and data transmission rate of a well logging instrument. Various domestic logging companies research and develop high-speed telemetering instruments, but the research of the high-speed telemetering instruments focuses on improving the transmission rate of logging data, and the research on the integration capability and the combination capability of the telemetering instruments is relatively deficient.
At present, most of telemetering instruments, except for ensuring the basic data transmission function, integrate the measurement of natural gamma and well deviation azimuth at most, and parameters such as well diameter, well temperature, tension, mud resistivity, magnetic joint hoop and cable head voltage are generally measured by adopting a single downhole instrument, and besides, the data transmission rate of the existing telemetering instrument is basically below 800 kbps.
The prior art mainly has the following problems:
firstly, the length of an underground instrument combination is long, the weight of an instrument string is large, and the construction safety risk is large;
secondly, each measuring instrument needs to consider the wiring requirement of an electronic circuit while considering the mechanical structure, so that the design difficulty of the instrument is increased;
thirdly, each measuring instrument needs to be provided with basic circuits for power supply, communication, data acquisition and the like independently, so that the manufacturing cost of the instrument is increased;
fourthly, the data transmission rate is difficult to meet the requirements of large-data-volume logging instruments, and the logging construction efficiency is seriously influenced.
It is important to those skilled in the art to provide a design for a multiparameter high-speed telemetry instrument. Accordingly, the present invention provides a multi-parameter high speed telemetry instrument.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a multi-parameter high-speed telemetry apparatus, comprising:
a power module for providing direct current power to the multi-parameter high-speed telemetry instrument;
the continuous inclination measuring module is used for detecting and obtaining gravity acceleration components and fluxgate components in at least three directions;
the natural gamma measurement module is used for processing the received natural gamma rays in the stratum to obtain a standard square wave signal;
the multi-parameter signal processing circuit is used for acquiring a cable head voltage value, a tension value, a well temperature value, a double-well-diameter voltage signal and mud resistivity data;
and the high-speed data acquisition and transmission module is communicated with the continuous inclination measurement module, the natural gamma measurement module and the multi-parameter signal processing circuit and is used for processing the received data and carrying out communication with a ground system.
According to one embodiment of the utility model, the power supply module comprises: the secondary output of the transformer is AC to the rectifying circuit, and then the secondary output of the transformer is converted into DC power supply after being filtered and stabilized by the filtering circuit and the switching power supply to be used by other modules, the overcurrent protection circuit is used for controlling the total current of the multi-parameter high-speed telemetering instrument below a preset standard value, and the electronic device of the multi-parameter high-speed telemetering instrument is prevented from being damaged due to overcurrent.
According to one embodiment of the utility model, the continuous inclination measuring module comprises:
the ITT connector is used for connecting the continuous inclination measuring module with the power supply module and the high-speed data acquisition and transmission module;
a quartz accelerometer for measuring the gravitational acceleration components in at least three directions;
a high performance fluxgate for measuring the fluxgate components of at least three directions;
the high-temperature data processing circuit is used for processing the received gravity acceleration component and the received fluxgate component to obtain a component numerical value or a well deviation direction numerical value;
and the non-magnetic framework is used for fixing the quartz accelerometer, the high-performance fluxgate and the high-temperature data processing circuit.
According to one embodiment of the present invention, the natural gamma measurement module includes:
the sodium iodide crystal is used for receiving natural gamma rays in the stratum, and part or all of energy of the natural gamma rays in the stratum after entering the sodium iodide crystal is converted into photons;
the photomultiplier is coupled with the sodium iodide crystal and is used for amplifying the photons to form a natural gamma pulse signal;
a high voltage power supply circuit in communication with the photomultiplier tube for powering the photomultiplier tube;
and the temperature compensation and pulse processing circuit is communicated with the photomultiplier and is used for amplifying, identifying, shaping and carrying out temperature compensation on the natural gamma pulse signals to obtain the standard square wave signals.
According to one embodiment of the utility model, the temperature compensation and pulse processing circuit comprises:
the pulse follower is used for following and buffering the natural gamma pulse signal;
the power amplifier is used for carrying out power amplification on the natural gamma pulse signals which are followed and buffered and driving a next stage of identification shaping circuit;
a differential shaping circuit for performing differential shaping on the natural gamma pulse signal and shaping the natural gamma pulse signal into the standard square wave signal;
the temperature compensation circuit is used for controlling the high-voltage regulating circuit to increase the high-voltage value when the temperature rises, and compensating the reduction of natural gamma counting caused by the reduction of the production energy of the sodium iodide crystal due to the temperature rise;
the high-voltage regulating circuit is used for regulating the value of the power supply voltage of the photomultiplier;
a threshold adjustment circuit for adjusting a threshold voltage into the temperature compensation and pulse processing circuit.
According to one embodiment of the present invention, the multi-parameter signal processing circuit includes:
the magnetic joint hoop and cable head voltage processing circuit is used for directly sampling the bus high voltage of the multi-parameter high-speed telemetering instrument to obtain a cable head voltage value;
the tension processing circuit is used for processing signals measured by the tension sensor to obtain the tension value;
the well temperature processing circuit is used for processing voltage and current signals measured by the temperature sensor to obtain a well temperature value;
the well diameter processing circuit is used for converting the two paths of resistivity of the well diameter potentiometer into the double-well diameter voltage signal;
and the mud resistivity processing circuit is used for processing the voltage and current signals acquired by the voltage sampling circuit and the current sampling circuit to obtain the mud resistivity data.
According to one embodiment of the utility model, the high speed data acquisition and transmission module comprises:
the high-speed acquisition control panel is responsible for acquiring, processing and receiving commands of the ground system to realize control;
the network communication board is communicated with the high-speed acquisition control board and is responsible for processing the Ethernet data of the multi-parameter high-speed telemetering instrument and controlling the exchange of the multi-parameter high-speed telemetering instrument and an Ethernet network;
and the modem is used for finishing the communication between the multi-parameter high-speed telemetering instrument and the surface system, and comprises the downloading of various logging commands and the uploading of various logging data.
According to one embodiment of the utility model, the multi-parameter high speed telemetry instrument comprises:
the instrument shell is made of titanium alloy materials and used for avoiding the influence of the steel shell on the direction measurement and ensuring the accuracy of the direction measurement.
According to one embodiment of the utility model, the multi-parameter high speed telemetry instrument comprises:
an insulating cylinder and a heat sink for eliminating the effects of temperature variations on the high speed data acquisition and transmission module and the natural gamma measurement module.
Compared with the prior art, the utility model has the advantages and positive effects that: the multi-parameter high-speed telemetering instrument provided by the utility model has the functions of increasing the transmission rate of logging data to 1100kbps and simultaneously measuring various parameters, improves the combination capability of the logging instrument, shortens the length of an underground instrument string, and has the advantages of simple structure, light weight and easiness in maintenance.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 shows a schematic diagram of a multi-parameter high-speed telemetry instrument according to an embodiment of the utility model;
FIG. 2 shows a power supply module circuit schematic according to one embodiment of the utility model;
FIG. 3 shows a schematic structural diagram of a continuous inclination measurement module according to an embodiment of the present invention;
FIG. 4 shows a schematic diagram of a natural gamma measurement module according to an embodiment of the utility model;
FIG. 5 shows a schematic diagram of a multi-parameter signal processing circuit according to an embodiment of the utility model; and
FIG. 6 shows a functional block diagram of a high speed data acquisition and transmission module according to one embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. In addition, the drawings are not drawn to scale.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
FIG. 1 shows a schematic diagram of a multi-parameter high-speed telemetry instrument, according to an embodiment of the utility model.
As shown in fig. 1, the multi-parameter high-speed telemetry instrument comprises a power supply module 1, a continuous inclination measurement module 2, a natural gamma measurement module 3, a multi-parameter signal processing circuit 4 and a high-speed data acquisition and transmission module 5.
Specifically, the power module 1 is used to provide dc power for a multi-parameter high-speed telemetry instrument. The continuous inclination measuring module 2 is used for detecting and obtaining gravity acceleration components and fluxgate components in at least three directions. The natural gamma measurement module 3 is used for processing the received natural gamma rays in the stratum to obtain a standard square wave signal. The multi-parameter signal processing circuit 4 is used for acquiring a cable head voltage value, a tension value, a well temperature value, a double-well-diameter voltage signal and mud resistivity data. The high-speed data acquisition and transmission module 5 is communicated with the continuous inclination measurement module 2, the natural gamma measurement module 3 and the multi-parameter signal processing circuit 4, and is used for processing the received data and performing communication with a ground system.
In one embodiment, the multi-parameter high-speed telemeter further comprises an instrument shell 6 which is made of titanium alloy and is used for avoiding the influence of a steel shell on azimuth measurement and ensuring the accuracy of the azimuth measurement.
In one embodiment, the multi-parameter high speed telemetry instrument further comprises an insulating cylinder and endothermic agent 7 for eliminating the effects of temperature changes on the high speed data acquisition and transmission module 5 and the natural gamma measurement module 3.
In conclusion, the multi-parameter high-speed telemetering instrument shown in fig. 1 realizes measurement of various parameters such as well diameter, well temperature, tension, mud resistivity, well deviation direction, magnetic joint hoop, cable head voltage, natural gamma ray and the like and high-speed transmission of logging data.
Fig. 2 shows a power supply module circuit schematic according to an embodiment of the utility model.
As shown in fig. 2, the power module 1 includes a transformer 8, a rectifying circuit 9, a filter circuit 10, a switching power supply 11 and an overcurrent protection circuit 12, and the power module 1 can provide 200V, ± 15V and ± 5V dc power for the multi-parameter high-speed telemetry instrument.
In one embodiment, the secondary output of the transformer 8 is ac-fed to the rectifying circuit 9, and then filtered and stabilized by the filter circuit 10 and the switching power supply 11 to be a ± 15V and a ± 5V dc power supply for other modules, and the overcurrent protection circuit 12 is used for controlling the total current of the multi-parameter high-speed telemetering instrument below a preset standard value, so as to prevent the electronic components of the multi-parameter high-speed telemetering instrument from being damaged due to overcurrent.
Further, the overcurrent protection circuit 12 employs an overcurrent protection resistor, which is connected between the rectifier circuit 9 and the filter circuit 10.
It should be noted that the preset standard value can be set to 1A in practice, and the utility model is not limited to the specific value of the preset standard value.
Fig. 3 shows a schematic structural diagram of a continuous inclination measuring module according to an embodiment of the utility model.
Specifically, the continuous inclination measurement module 2 includes a high-resolution continuous inclination sensor for detecting the gravitational acceleration component and the fluxgate component of the three axes (X, Y, Z), and a data processing circuit for processing and calculating component data measured by the sensor.
As shown in fig. 3, the continuous inclination measurement module 2 includes an ITT connector 13, a quartz accelerometer 14, a high temperature data processing circuit 15, a high performance fluxgate 16, and a nonmagnetic skeleton 17.
In one embodiment, the ITT connector 13 is used to connect the skew measurement module 2 and the power module 1, the high speed data acquisition and transmission module 5.
In one embodiment, the quartz accelerometer 14 is used to measure gravitational acceleration components resulting in at least three directions (e.g., X, Y, Z three directions); the high-performance fluxgate 16 is used for measuring fluxgate components of at least three directions (for example, X, Y, Z three directions); the high temperature data processing circuit 15 is configured to process the received gravitational acceleration component and the fluxgate component to obtain a component value or a well deviation orientation value.
Further, the quartz accelerometer 14 is used for measuring X, Y, Z gravity acceleration components in three directions, the high-performance fluxgate 16 is used for measuring X, Y, Z fluxgate components in three directions, the above 6 components are sent to the high-temperature data processing circuit 15 for processing, and the processed component values or the calculated inclination direction values are sent to the high-speed data acquisition and transmission module 5.
In one embodiment, a nonmagnetic frame 17 is used to hold the quartz accelerometer 14, the high performance fluxgate 16 and the high temperature data processing circuit 15.
FIG. 4 shows a schematic diagram of a natural gamma measurement module according to an embodiment of the utility model.
As shown in fig. 4, the natural gamma measuring module 3 includes a sodium iodide crystal 18, a photomultiplier tube 19, a high voltage power supply circuit 20, and a temperature compensation and pulse processing circuit 21.
In one embodiment, the sodium iodide crystals 18 are configured to receive natural gamma rays from the formation, and some or all of the energy of the natural gamma rays in the formation after entering the sodium iodide crystals 18 is converted to photons. The photomultiplier 19 is coupled to the sodium iodide crystal 18 for amplifying the photons to form a natural gamma pulse signal.
Specifically, after the natural gamma rays in the formation enter the sodium iodide crystal 18, part or all of the energy is converted into photons, and the photons enter the photomultiplier tube 19 which is well optically coupled with the sodium iodide crystal 18 and are amplified to form natural gamma pulse signals.
In one embodiment, the high voltage power supply circuit 20 is in communication with the photomultiplier tube 19 for powering the photomultiplier tube 19. Specifically, the high voltage power supply circuit 20 (composed of a high voltage DC-DC power supply and a multi-stage RC filter circuit) boosts +15V to +1500V to +1800V to supply power to the photomultiplier tube 19.
In one embodiment, the temperature compensation and pulse processing circuit 21 is in communication with the photomultiplier tube 19 for amplifying, shaping, and temperature compensating the natural gamma pulse signal to obtain a standard square wave signal.
Specifically, the natural gamma pulse signal is converted into a standard square wave signal with an amplitude of 3.3V and a width of 4us after being processed by the temperature compensation and pulse processing circuit 21 such as amplification, differential shaping, and temperature compensation, and the standard square wave signal is sent to the high-speed data acquisition and transmission module 5 to complete the counting of the natural gamma.
Further, the temperature compensation and pulse processing circuit 21 is mainly composed of a pulse follower, a power amplifier, a discrimination shaping circuit, a temperature compensation circuit, a high voltage adjusting circuit, a threshold adjusting circuit and the like, wherein the temperature compensation circuit can control the high voltage adjusting circuit to increase a high voltage value when the temperature rises, the natural gamma count reduction caused by the reduction of the energy production due to the temperature rise of the sodium iodide crystal 18 is compensated, and the threshold adjusting circuit is used for adjusting the threshold voltage entering the temperature compensation and pulse processing circuit.
The pulse follower is used for following and buffering the natural gamma pulse signal; the power amplifier is used for carrying out power amplification on the natural gamma pulse signals which are followed and buffered, and driving the next stage of identification shaping circuit; the identification shaping circuit is used for identifying and shaping the natural gamma pulse signals into standard square wave signals; the high-voltage regulating circuit is used for regulating the value of the power supply voltage of the photomultiplier.
FIG. 5 shows a schematic diagram of a multi-parameter signal processing circuit according to an embodiment of the utility model.
As shown in fig. 5, the multi-parameter signal processing circuit 4 includes a joint band and cable head voltage processing circuit 22, a tension processing circuit 23, a well temperature processing circuit 24, a well diameter processing circuit 25, and a mud resistivity processing circuit 26.
In one embodiment, the joint band and head voltage processing circuit 22 is configured to directly sample the bus high voltage of the multi-parameter high speed telemetry instrument to obtain a head voltage value.
Specifically, the magnetic coupling and cable head voltage processing circuit 22 adopts a thick film integration technology, the dynamic range of a base film chip is large, the defects of complex circuit and poor reliability caused by signal processing size grading and symbol conversion of the magnetic coupling are overcome, the high voltage of an instrument bus is directly sampled to obtain the value of the cable head voltage, and the condition of accuracy reduction caused by conversion is avoided.
In one embodiment, the tension processing circuit 23 is configured to process the signal measured by the tension sensor to obtain a tension value.
Specifically, the tension processing circuit 23 adopts REF101SM as an excitation source, the precision resistance adjustment REF101SM outputs a 10V excitation signal, the signal measured by the tension sensor is subjected to interference elimination processing by a protection and interference elimination circuit formed by a diode MMSZ4700 and a resistance-capacitance network, and then the Tension (TEN) value obtained after instrument amplification, baseline stabilization, signal attenuation and low-pass filtering is sent to the high-speed data acquisition and transmission module 5.
In one embodiment, the well temperature processing circuitry 24 is configured to process the voltage and current signals measured by the temperature sensor to obtain a well temperature value.
Specifically, the well temperature processing circuit 24 is comprised of three parts: the first part is a voltage source consisting of REF191ES and a resistor-capacitor network; the second part is a signal measuring circuit consisting of a resistance bridge (composed of a sensor and a resistance network) and an instrumentation amplifier AD 620; the third part is a low-pass filtering and signal buffering circuit consisting of a resistor-capacitor network and an operational amplifier OP 484. The well temperature processing circuit 24 processes the voltage and current signals measured by the temperature sensor to obtain a well Temperature (TEMP) value.
In one embodiment, the borehole processing circuitry 25 is configured to convert the two resistivity paths of the borehole potentiometer into a dual borehole voltage signal.
Specifically, the borehole diameter processing circuit 25 is designed by a thick film integration technology, and integrated circuits such as a double-borehole diameter excitation source, a bridge balance network, instrument amplification, low-pass filtering and the like can convert two paths of resistivity of the borehole diameter potentiometer into double-borehole diameter voltage signals.
In one embodiment, the mud resistivity processing circuit 26 is configured to process the voltage and current signals collected by the voltage sampling circuit and the current sampling circuit to obtain mud resistivity data.
Specifically, the slurry resistivity processing circuit 26 adopts HA5002 as an excitation source, 20kHz square waves generated by a crystal oscillator are converted into sine waves through current amplification and waveform conversion and supplied to the emitter electrode, the voltage sampling circuit and the current sampling circuit are connected with the sampling electrode to finish sampling of voltage and current signals, and the voltage and current signals are processed by the instrument amplification circuit and the chopper circuit and then sent to the high-speed data acquisition and transmission module 5.
FIG. 6 shows a functional block diagram of a high speed data acquisition and transmission module according to one embodiment of the present invention.
As shown in fig. 6, the high-speed data acquisition and transmission module 5 includes a high-speed acquisition control board 27, a network communication board 28, and a modem 29.
In one embodiment, the high speed acquisition control board 27 is responsible for acquiring, processing and receiving commands from the ground system to control the acquisition of the signals.
Specifically, the high-speed acquisition control board 27 is responsible for acquiring, processing and receiving ground commands of various paths of signals of the multi-parameter high-speed telemetering instrument to realize control, realizes data exchange with the network communication board 28 by adopting an SPI (serial peripheral interface), uploads logging data to the network communication board 28, and receives commands sent to the instrument by a ground system to complete analysis and processing of the commands; the FPGA programmable logic device and the ARM microcontroller are used as cores, and the high-precision external differential A/D and the controller internal A/D are matched to form a main acquisition channel and an auxiliary acquisition channel, so that the data acquisition amount is increased, and the data acquisition speed and the data acquisition precision are ensured, wherein the external differential A/D is used as the main acquisition channel to provide 8 paths of bipolar analog acquisition channels and 18-bit A/D synchronous sampling conversion, and the controller internal A/D is used as the auxiliary acquisition channel to provide 6 paths of unipolar analog acquisition channels and 12-bit A/D sampling conversion.
In one embodiment, the network communication board 28 communicates with the high-speed acquisition control board 27 and is responsible for processing the ethernet data of the multi-parameter high-speed telemetry instrument and controlling the switching of the multi-parameter high-speed telemetry instrument with the ethernet network.
Specifically, the network communication board 28 is responsible for ethernet data processing of the instrument and switching control with the ethernet network; the Ethernet data processing part adopts an MII interface to be connected with the network exchange control part and adopts an SPI interface to be connected with the high-speed acquisition control panel 27, and the network data processing of the data acquired by the underground instrument is completed; the Ethernet network switching control is realized by taking a high-temperature network switching chip as a core, the high-temperature network switching chip provides 3 PHY interfaces and 1 MII interface, the PHY interfaces are used for connecting Ethernet exchangers of an upper logging instrument and a lower logging instrument, and the MII interfaces are used for connecting an Ethernet data processing part; the wiring mode adopts a shielded twisted pair.
In one embodiment, the modem 29 is used to communicate between the multiparameter high-speed telemetry instrument and the surface system, including the downloading of various logging commands and the uploading of various types of logging data.
Specifically, the modem 29 is responsible for communication between the downhole instrument and the surface system, including downloading of various logging commands and uploading of various logging data; the special chip for modulation and demodulation is used as a core to build, and the transmission rate of the logging data of the myriameter logging cable is realized to be more than 1100kbps by adopting the ADSL technology.
In conclusion, the multi-parameter high-speed telemetering instrument provided by the utility model has the functions of increasing the transmission rate of logging data to 1100kbps and simultaneously measuring various parameters, improves the combination capability of the logging instrument, shortens the length of an underground instrument string, and has the advantages of simple structure, light weight and easiness in maintenance.
It is to be understood that the disclosed embodiments of the utility model are not limited to the particular structures, process steps, or materials disclosed herein but are extended to equivalents thereof as would be understood by those ordinarily skilled in the relevant arts. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the utility model. Thus, the appearances of the phrase "one embodiment" or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. A multi-parameter high speed telemetry apparatus, comprising:
a power module for providing direct current power to the multi-parameter high-speed telemetry instrument;
the continuous inclination measuring module is used for detecting and obtaining gravity acceleration components and fluxgate components in at least three directions;
the natural gamma measurement module is used for processing the received natural gamma rays in the stratum to obtain a standard square wave signal;
the multi-parameter signal processing circuit is used for acquiring a cable head voltage value, a tension value, a well temperature value, a double-well-diameter voltage signal and mud resistivity data;
and the high-speed data acquisition and transmission module is communicated with the continuous inclination measurement module, the natural gamma measurement module and the multi-parameter signal processing circuit and is used for processing the received data and carrying out communication with a ground system.
2. The multi-parameter high speed telemetry instrument of claim 1, wherein the power module comprises: the secondary output of the transformer is AC to the rectifying circuit, and then the secondary output of the transformer is converted into DC power supply after being filtered and stabilized by the filtering circuit and the switching power supply to be used by other modules, the overcurrent protection circuit is used for controlling the total current of the multi-parameter high-speed telemetering instrument below a preset standard value, and the electronic device of the multi-parameter high-speed telemetering instrument is prevented from being damaged due to overcurrent.
3. The multi-parameter high speed telemetry instrument of claim 1, wherein the continuous inclination measurement module comprises:
the ITT connector is used for connecting the continuous inclination measuring module with the power supply module and the high-speed data acquisition and transmission module;
a quartz accelerometer for measuring the gravitational acceleration components in at least three directions;
a high performance fluxgate for measuring the fluxgate components of at least three directions;
the high-temperature data processing circuit is used for processing the received gravity acceleration component and the received fluxgate component to obtain a component numerical value or a well deviation direction numerical value;
and the non-magnetic framework is used for fixing the quartz accelerometer, the high-performance fluxgate and the high-temperature data processing circuit.
4. The multi-parameter high-speed telemetry instrument of claim 1, wherein the natural gamma measurement module comprises:
the sodium iodide crystal is used for receiving natural gamma rays in the stratum, and part or all of energy of the natural gamma rays in the stratum after entering the sodium iodide crystal is converted into photons;
the photomultiplier is coupled with the sodium iodide crystal and is used for amplifying the photons to form a natural gamma pulse signal;
a high voltage power supply circuit in communication with the photomultiplier tube for powering the photomultiplier tube;
and the temperature compensation and pulse processing circuit is communicated with the photomultiplier and is used for amplifying, identifying, shaping and carrying out temperature compensation on the natural gamma pulse signals to obtain the standard square wave signals.
5. The multi-parameter high speed telemetry instrument of claim 4, wherein the temperature compensation and pulse processing circuit comprises:
the pulse follower is used for following and buffering the natural gamma pulse signal;
the power amplifier is used for carrying out power amplification on the natural gamma pulse signals which are followed and buffered and driving a next stage of identification shaping circuit;
the identifying and shaping circuit is used for identifying and shaping the natural gamma pulse signals into standard square wave signals;
the temperature compensation circuit is used for controlling the high-voltage regulating circuit to increase the high-voltage value when the temperature rises, and compensating the reduction of natural gamma counting caused by the reduction of the production energy of the sodium iodide crystal due to the temperature rise;
the high-voltage regulating circuit is used for regulating the value of the power supply voltage of the photomultiplier;
a threshold adjustment circuit for adjusting a threshold voltage into the temperature compensation and pulse processing circuit.
6. The multi-parameter high speed telemetry instrument of claim 1, wherein the multi-parameter signal processing circuit comprises:
the magnetic joint hoop and cable head voltage processing circuit is used for directly sampling the bus high voltage of the multi-parameter high-speed telemetering instrument to obtain a cable head voltage value;
the tension processing circuit is used for processing signals measured by the tension sensor to obtain the tension value;
the well temperature processing circuit is used for processing voltage and current signals measured by the temperature sensor to obtain a well temperature value;
the well diameter processing circuit is used for converting the two paths of resistivity of the well diameter potentiometer into the double-well diameter voltage signal;
and the mud resistivity processing circuit is used for processing the voltage and current signals acquired by the voltage sampling circuit and the current sampling circuit to obtain the mud resistivity data.
7. The multi-parameter high speed telemetry instrument of claim 1, wherein the high speed data acquisition and transmission module comprises:
the high-speed acquisition control panel is responsible for acquiring, processing and receiving commands of the ground system to realize control;
the network communication board is communicated with the high-speed acquisition control board and is responsible for processing the Ethernet data of the multi-parameter high-speed telemetering instrument and controlling the exchange of the multi-parameter high-speed telemetering instrument and an Ethernet network;
and the modem is used for finishing the communication between the multi-parameter high-speed telemetering instrument and the surface system, and comprises the downloading of various logging commands and the uploading of various logging data.
8. The multi-parameter high speed telemetry instrument of claim 1, wherein the multi-parameter high speed telemetry instrument comprises:
the instrument shell is made of titanium alloy materials and used for avoiding the influence of the steel shell on the direction measurement and ensuring the accuracy of the direction measurement.
9. The multi-parameter high speed telemetry instrument of claim 1, wherein the multi-parameter high speed telemetry instrument comprises:
an insulating cylinder and a heat sink for eliminating the effects of temperature variations on the high speed data acquisition and transmission module and the natural gamma measurement module.
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| CN202121680256.3U CN215979345U (en) | 2021-07-23 | 2021-07-23 | Multi-parameter high-speed telemetering instrument |
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| CN202121680256.3U CN215979345U (en) | 2021-07-23 | 2021-07-23 | Multi-parameter high-speed telemetering instrument |
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| CN202121680256.3U Active CN215979345U (en) | 2021-07-23 | 2021-07-23 | Multi-parameter high-speed telemetering instrument |
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| CN (1) | CN215979345U (en) |
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