CN206957694U - A kind of well logging sensing node of wireless low-power consumption - Google Patents
A kind of well logging sensing node of wireless low-power consumption Download PDFInfo
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- CN206957694U CN206957694U CN201720884436.0U CN201720884436U CN206957694U CN 206957694 U CN206957694 U CN 206957694U CN 201720884436 U CN201720884436 U CN 201720884436U CN 206957694 U CN206957694 U CN 206957694U
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Abstract
A kind of well logging sensing node of wireless low-power consumption, including PMU, wireless communication unit, data processing unit and sensing unit；The real time information of sensing unit collection situ of drilling well simultaneously converts thereof into parameter sensing, then the parameter sensing is sent into data processing unit；Data processing unit is stored the parameter sensing that sensing unit transmits, and the parameter sensing is sent to the main control computer of outside by wireless communication unit；Data processing unit can also monitor the battery status of PMU, and the data of monitoring are sent into the main control computer；PMU is used to provide power supply for wireless communication unit, data processing unit, sensing unit.Wireless technology is combined applied on oil field by the utility model with traditional logging equipment, and compared with traditional logging equipment, this well logging sensing node has the advantages that removable, convenient disassembly, flexibility are stronger, particularly suitable for this complex environment in well logging well site.
Description
Technical Field
The utility model relates to a logging sensing node especially indicates a logging sensing node of wireless low-power consumption.
Background
Logging: logging is an important component of oil and gas field exploration and development technology, and is mainly used for discovering and evaluating oil and gas reservoirs by detecting and recording relevant information in a drilling process. The real-time collection of the underground parameters can know the underground condition at the first time, so that more accurate stratum information can be obtained in time; and then the drilling production is guided to be safer and quicker, the drilling efficiency and the drilling rate of oil-gas layers are improved, and the exploration and development benefits are finally improved.
The field bus technology is mostly adopted in the currently used comprehensive logging data acquisition part, each sensor outputs a standard current (voltage) signal, and data are transmitted to a control room in a wired transmission mode to monitor logging parameters. The installation and debugging of the wired comprehensive logging equipment are very complex and cumbersome, the workload of dismounting and mounting in the field moving process is large, the equipment is easily damaged, and the difficulty of construction operation is increased.
The existing logging instrument adopts a cable for data transmission, generally needs 20-30 lines, is low in technical content and high in cost, and has large disassembly and assembly workload in the well site relocation process, and equipment is easily damaged.
SUMMERY OF THE UTILITY MODEL
The utility model provides a logging sensing node of wireless low-power consumption, its main aim at overcome current logging instrument data transmission and adopt the cable to let the installation and debugging very complicated, loaded down with trivial details, and the in-process dismouting work load of moving at the scene is big to cause the damage of equipment easily, increase the defect of the degree of difficulty of construction operation.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a wireless low-power logging sensing node comprises a power management unit, a wireless communication unit, a data processing unit and a sensing unit;
the sensing unit collects real-time information of a drilling site, converts the real-time information into sensing parameters and transmits the sensing parameters to the data processing unit;
the data processing unit stores the sensing parameters transmitted by the sensing unit and sends the sensing parameters to an external main control computer through the wireless communication unit;
the data processing unit can also monitor the battery state of the power management unit and send the monitored data to the main control computer;
the power management unit is used for providing power for the wireless communication unit, the data processing unit and the sensing unit.
The wireless communication device is characterized by further comprising a shell, wherein at least one sensor interface is arranged on the shell, and the power management unit, the wireless communication unit and the data processing unit are all arranged in the shell.
Furthermore, the sensing unit comprises a digital signal conditioning circuit and an analog signal conditioning circuit which are arranged in the shell; the sensing unit also comprises at least one sensor which is arranged outside the shell and is in one-to-one butt joint with the at least one sensor interface, and the sensor is in signal connection with the data processing unit through the digital signal conditioning circuit or the analog signal conditioning circuit.
Furthermore, the data processing unit comprises an MCU module, a watchdog circuit, a memory and a first input/output interface, and the digital signal conditioning circuit and the analog signal conditioning circuit are in signal connection with the MCU module.
Further, the power management unit includes a battery charging circuit, a rechargeable battery, a battery protection circuit, an electric quantity detection circuit, a power converter for converting the voltage of the rechargeable battery, and a second input/output interface.
Compared with the prior art, the utility model discloses the beneficial effect who produces lies in:
1. the utility model discloses combine together wireless technology and traditional logging instrument and be applied to the oil field on, compare with traditional logging instrument, this logging sensing node has advantages such as portable, easy dismounting, flexibility are stronger, is particularly suitable for this kind of complicated environment of logging well site.
2. The utility model discloses in, through setting up digital signal conditioning circuit and analog signal conditioning circuit to can carry out selective input to the sensing signal of the multiple sensor aboveground, strengthened the adaptability of product.
3. The utility model discloses in, through setting up the watchdog circuit for but data processing unit monitoring power management unit's battery state sends the data of control for the main control computer is handled, and can in time appear automatic re-setting and restart work when unusual in system work.
Drawings
Fig. 1 is a control schematic block diagram of the present invention.
Fig. 2 is a control schematic block diagram of the data processing unit and the sensing unit according to the present invention.
Fig. 3 is a control schematic block diagram of the power management unit according to the present invention.
Fig. 4 is a schematic view of an external structure of the housing according to the present invention.
Fig. 5 is an internal cross-sectional view of the housing according to the present invention.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
Reference is made to fig. 1, 2, 3, 4 and 5. A wireless low-power logging sensing node comprises a power management unit 1, a wireless communication unit 2, a data processing unit 3 and a sensing unit 4; wherein,
the sensing unit 4 collects real-time information of a drilling site, converts the real-time information into sensing parameters and transmits the sensing parameters to the data processing unit 3;
the data processing unit 3 stores the sensing parameters transmitted by the sensing unit 4 and transmits the sensing parameters to an external main control computer through the wireless communication unit 2;
the data processing unit 3 can also monitor the battery state of the power management unit 1 and send the monitored data to the main control computer;
the power management unit 1 is used for providing power for the wireless communication unit 2, the data processing unit 3 and the sensing unit 4.
The utility model discloses combine together wireless technology and traditional logging instrument and be applied to the oil field on, compare with traditional logging instrument, this logging sensing node has advantages such as portable, easy dismounting, flexibility are stronger, is particularly suitable for this kind of complicated environment of logging well site.
In addition, refer to fig. 1, 4, and 5. The intelligent monitoring system further comprises a shell 5, at least one sensor interface 51 is arranged on the shell 5, and the power management unit 1, the wireless communication unit 2 and the data processing unit 3 are all arranged in the shell 5.
Reference is made to fig. 1, 2 and 5. Specifically, the sensing unit 4 includes a digital signal conditioning circuit 41 and an analog signal conditioning circuit 42 which are arranged in the housing 5; the sensing unit further comprises at least one sensor 43 installed outside the housing 5 and in one-to-one butt joint with the at least one sensor interface 51, and the sensor 43 is in signal connection with the data processing unit 3 through the digital signal conditioning circuit 41 or the analog signal conditioning circuit 42. The sensors 43 may be temperature sensors, pressure sensors, torque sensors, pulse sensors, winch sensors, etc., different sensors may be installed in different working environments, for example, the temperature sensors and the pressure sensors may be installed in slurry, the winch sensors may be installed on a winch, etc., and different sensors are respectively in one-to-one butt joint with the sensor interfaces on the housing 5 through cables. Because the output signals of different sensors may be analog signals or digital signals, two conditioning circuits, namely a digital signal conditioning circuit 41 and an analog signal conditioning circuit 42, are respectively arranged, so that selective input of two sensing signals can be realized, and the adaptability of the product is enhanced; the digital signal conditioning circuit 41 is mainly used for level conversion, such as 5V to 3.3V level conversion; the analog signal conditioning circuit 42 is mainly used to convert the analog signal into a digital signal.
Reference is made to fig. 1, 2 and 5. Specifically, the data processing unit 3 includes an MCU module 31, a watchdog circuit 32, a memory 33, and a first input/output interface 34, and the digital signal conditioning circuit 41 and the analog signal conditioning circuit 42 are in signal connection with the MCU module 31. The MCU module 31, the watchdog circuit 32, the memory 33, the first input/output interface 34, the digital signal conditioning circuit 41, and the analog signal conditioning circuit 42 may be integrated on the same circuit board and installed in the housing 5. The drilling site real-time information acquired by the sensor 43 is conditioned by the digital signal conditioning circuit 41 or the analog signal conditioning circuit 42, converted into sensing parameters and transmitted to the MCU module 31, and then transmitted to the memory 33 for storage; in addition, the sensing parameters are also transmitted to the wireless communication unit 2 through the first input/output interface 34, and then are transmitted to an external main control computer through the wireless communication unit 2.
The watchdog circuit, also called voltage monitor circuit, has two functions: the method is used for realizing long-time monitoring of the electric quantity of the battery and early warning of voltage drop; and secondly, once the MCU can not work normally, the function of the internal watchdog can not be reset, and the software enters into an endless loop. At this time, the watchdog with integrated watchdog function can trigger a reset, thereby improving the reliability of the system.
Therefore, by arranging the watchdog circuit, the data processing unit 3 can monitor the battery state of the power management unit, send the monitored data to the main control computer for processing, and automatically reset and restart the system when the system works abnormally in time.
Reference is made to fig. 1, 3 and 5. Specifically, the power management unit 1 includes a battery charging circuit 11, a rechargeable battery 12, a battery protection circuit 13, a power detection circuit 14, a power converter 15 for converting the voltage of the rechargeable battery 12, and a second input/output interface 16. The battery charging circuit 11 is used for connecting an external power supply with the rechargeable battery 12 to charge the rechargeable battery 12; the voltage of the rechargeable battery 12 is converted into different voltages through the power converter 15, and then is transmitted to the wireless communication unit 2, the data processing unit 3 and the sensing unit 4 through the second input/output interface 16 to provide power for the wireless communication unit 2, the data processing unit 3 and the sensing unit 4; the power detection circuit 14 is used for detecting the remaining power of the rechargeable battery 12 and transmitting the detected power value to the watchdog circuit 32 through the second input/output interface 16 for monitoring.
The battery protection circuit is generally composed of elements such as a control IC, an MOs switching tube, a fuse, a resistor, a capacitor and the like, under a normal condition, the control IC outputs signals to control the MOs switching tube to be conducted, so that a battery core is conducted with an external circuit, and when the voltage of the battery core or the loop current exceeds a specified value, the MOS tube is immediately controlled to be turned off, so that the safety of the battery core is protected.
Refer to fig. 1. Specifically, the wireless communication unit 2 adopts a ZigBee module, and the radio frequency chip is CC2530 of TI. The wireless communication unit 2 transmits the sensing parameters and receives the control command transmitted by the master controller.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (5)
1. The utility model provides a logging sensing node of wireless low-power consumption which characterized in that: the wireless communication system comprises a power supply management unit, a wireless communication unit, a data processing unit and a sensing unit;
the sensing unit collects real-time information of a drilling site, converts the real-time information into sensing parameters and transmits the sensing parameters to the data processing unit;
the data processing unit stores the sensing parameters transmitted by the sensing unit and sends the sensing parameters to an external main control computer through the wireless communication unit;
the data processing unit can also monitor the battery state of the power management unit and send the monitored data to the main control computer;
the power management unit is used for providing power for the wireless communication unit, the data processing unit and the sensing unit.
2. The wireless low-power logging sensing node of claim 1, wherein: the wireless communication device is characterized by further comprising a shell, wherein at least one sensor interface is arranged on the shell, and the power management unit, the wireless communication unit and the data processing unit are all arranged in the shell.
3. The wireless low-power logging sensing node of claim 2, wherein: the sensing unit comprises a digital signal conditioning circuit and an analog signal conditioning circuit which are arranged in the shell; the sensing unit also comprises at least one sensor which is arranged outside the shell and is in one-to-one butt joint with the at least one sensor interface, and the sensor is in signal connection with the data processing unit through the digital signal conditioning circuit or the analog signal conditioning circuit.
4. The wireless low-power logging sensing node of claim 3, wherein: the data processing unit comprises an MCU module, a watchdog circuit, a memory and a first input/output interface, and the digital signal conditioning circuit and the analog signal conditioning circuit are in signal connection with the MCU module.
5. The wireless low-power logging sensing node of claim 1, wherein: the power management unit comprises a battery charging circuit, a rechargeable battery, a battery protection circuit, an electric quantity detection circuit, a power converter for converting the voltage of the rechargeable battery and a second input/output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884436.0U CN206957694U (en) | 2017-07-20 | 2017-07-20 | A kind of well logging sensing node of wireless low-power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720884436.0U CN206957694U (en) | 2017-07-20 | 2017-07-20 | A kind of well logging sensing node of wireless low-power consumption |
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| Publication Number | Publication Date |
|---|---|
| CN206957694U true CN206957694U (en) | 2018-02-02 |
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| CN201720884436.0U Active CN206957694U (en) | 2017-07-20 | 2017-07-20 | A kind of well logging sensing node of wireless low-power consumption |
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| CN (1) | CN206957694U (en) |
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- 2017-07-20 CN CN201720884436.0U patent/CN206957694U/en active Active
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