CN219840640U - Pumping tester of formation tester while drilling - Google Patents

Abstract

The utility model relates to a pumping tester of a formation tester while drilling, which comprises a DSP control circuit module, wherein the DSP control circuit module is connected with a sensor signal acquisition circuit module, a power output circuit, an electromagnetic valve driving circuit, an operation panel and a real-time display module, the sensor signal acquisition circuit module comprises a rotary transformer signal acquisition circuit, and the rotary transformer signal acquisition circuit and the power output circuit are both used for being connected with a motor of a pumping system; the solenoid valve drive circuit is configured to be coupled to a solenoid valve of a pumping system. The tester can be used for testing a pumping system and is simple to operate; the utility model can control the operation of the pumping system and monitor the operation states of the motor, the hydraulic system and the fluid pumping in the system in real time.

Description

Pumping tester of formation tester while drilling

Technical Field

The utility model belongs to the technical field of pumping tests, and particularly relates to a pumping tester of a formation tester while drilling.

Background

The latest developed stratum tester while drilling comprises pushing, pressure measuring and sampling functions, during normal operation, a certain operation point is pushed, sitting and setting are successful, then a real fluid sample can be obtained by continuously pumping for a few hours, in the joint debugging test of the instrument, particularly in the research and development stage, all circuit modules and all functional units are not matched in place, the main control software further needs too much experimental test data to be optimized and perfected, the foremost pumping function and the hydraulic pushing function of the instrument are required to be tested, the functions are required to be tested, the oil way for providing a hydraulic power motor and a hydraulic pipeline and the passage of the fluid sample pipeline are required to be driven and controlled, if the conventional circuit is used for building, the pressure tester while drilling is equivalent to a small set of pressure tester while drilling, the upper computer is required to be controlled to send a command, the system is built very large and troublesome, the test can be completed by a few persons, errors are very easy, the waste of manpower and material resources is very large, misoperation is very easy to be generated, and the instrument test and the problem judgment is very influenced. Therefore, there is an urgent need for a pumping tester that can issue various instructions to a pumping system, and at the same time, can collect various data of the pumping system, so as to determine whether the pumping system is perfect in function, needs maintenance and improvement, and the like, according to various parameters.

Disclosure of Invention

In order to solve all or part of the above problems, it is an object of the present utility model to provide a pumping tester for a formation while drilling tester, by means of which the tester can be used for performance testing of a pumping system.

According to one aspect of the present utility model, there is provided a pumping tester for a formation tester while drilling, comprising a DSP control circuit module connected with a sensor signal acquisition circuit module, a power output circuit, a solenoid valve driving circuit and an operation panel and real-time display module, wherein,

the sensor signal acquisition circuit module comprises a rotary transformer signal acquisition circuit, wherein the rotary transformer signal acquisition circuit and the power output circuit are both used for being connected with a motor of the pumping system;

the solenoid valve drive circuit is configured to be coupled to a solenoid valve of a pumping system.

Further, the motor also comprises a power supply source and an AC-DC motor power supply module;

the AC-DC motor power supply module comprises a first weak current power supply module, a second weak current power supply module, a third weak current power supply module, a fourth weak current power supply module and a fifth weak current power supply module; wherein:

the power supply is connected with the DSP control circuit module through the first weak current power supply module;

the power supply is connected with the operation panel and the real-time display module through the second weak current power supply module;

the power supply is connected with the sensor signal acquisition circuit module through the third weak current power supply module;

the power supply is connected with the power output circuit through the fourth weak current power supply module;

and the power supply is connected with the electromagnetic valve driving circuit through the fifth weak current power supply module.

Further, the DSP control circuit module is a TMS320F2812 main control chip, and the TMS320F2812 main control chip is connected with the operation panel and the real-time display module through an IOB pin GPIOB0 pin, a GPIOB1 pin, a GPIOB2 pin, a GPIOB3 pin, a GPIOB4 pin, a GPIOB5 pin, a GPIOB6 pin and a GPIOB7 pin;

the TMS320F2812 main control chip is connected with the rotary transformer signal acquisition circuit through a SCIRDXA pin, a SCITDXA pin, a SPISOMIA pin and a SPISTE pin.

Further, the TMS320F2812 main control chip is connected with the power output circuit through a PWM1 pin, a PWM2 pin, a PWM3 pin, a PWM4 pin, a PWM5 pin and a PWM6 pin;

the power output circuit comprises a first power tube, a second power tube, a third power tube, a fourth power tube, a fifth power tube and a sixth power tube; wherein:

the grid electrode of the first power tube is connected with the PWM1 pin of the TMS320F2812 main control chip, the drain electrode of the first power tube is connected with the positive electrode of the power supply, the source electrode of the first power tube is connected with the drain electrode of the fourth power tube, the source electrode of the fourth power tube is connected with the negative electrode of the power supply, and the grid electrode of the fourth power tube is connected with the PWM2 pin of the TMS320F2812 main control chip;

the grid electrode of the second power tube is connected with the PWM3 pin of the TMS320F2812 main control chip, the drain electrode of the second power tube is connected with the positive electrode of the power supply, the source electrode of the second power tube is connected with the drain electrode of the fifth power tube, the source electrode of the fifth power tube is connected with the negative electrode of the power supply, and the grid electrode of the fifth power tube is connected with the PWM4 pin of the TMS320F2812 main control chip;

the grid electrode of the third power tube is connected with the PWM5 pin of the TMS320F2812 main control chip, the drain electrode of the third power tube is connected with the positive electrode of the power supply, the source electrode of the third power tube is connected with the drain electrode of the sixth power tube, the source electrode of the sixth power tube is connected with the negative electrode of the power supply, and the grid electrode of the sixth power tube is connected with the PWM6 pin of the TMS320F2812 main control chip;

a load lead-out wire Ua is connected between the source electrode of the first power tube and the drain electrode of the fourth power tube, a load lead-out wire Ub is connected between the source electrode of the second power tube and the drain electrode of the fifth power tube, and a load lead-out wire Uc is connected between the source electrode of the third power tube and the drain electrode of the sixth power tube;

the load outgoing line Ua, the load outgoing line Ub and the load outgoing line Uc are respectively connected with three-phase outgoing lines of the motor.

Further, the solenoid valve driving circuit comprises an NCV1413B transistor array and a solenoid valve driving circuit unit; the pins 1C and 2C of the NCV1413B transistor array are respectively connected with the end A and the end B of the electromagnetic valve driving circuit unit, the output end S01 of the electromagnetic valve driving circuit unit is respectively used for being connected with one electromagnetic valve of a pumping system, and the pins 1B and 2B of the NCV1413B transistor array are respectively connected with the pins GPIO 10 and GPIO 11 of the TMS320F2812 main control chip.

Further, the electromagnetic valve driving circuit unit comprises a first resistor and a third resistor, one end of the first resistor is connected with the end A, the other end of the first resistor is connected with one end of a second resistor, the anode of the first diode and the grid electrode of the MOS tube, the other end of the second resistor, the cathode of the first diode and the source electrode of the MOS tube are all connected with a 28V power supply, the drain electrode of the MOS tube is connected with the anode of a fifth diode, the cathode of the fifth diode is connected with the anode of the second diode, and the cathode of the second diode is connected with the 28V power supply; one end of the third resistor is connected with the end B, the other end of the third resistor is connected with one end of the fourth resistor and the base electrode of the triode, the other end of the fourth resistor and the emitter electrode of the triode are connected with a 12V power supply, the collector electrode of the triode is connected with the positive electrode of the third diode, the negative electrode of the third diode is connected with the positive electrode of the second diode, the negative electrode of the third diode is connected with the S01 output end and the negative electrode of the fourth diode, the positive electrode of the fourth diode is grounded, and the S01 output end is used for being connected with an electromagnetic valve of the pumping system.

Further, the sensor signal acquisition circuit module further comprises a temperature sensor signal acquisition circuit, the temperature sensor signal acquisition circuit comprises a temperature sensor PT100, the temperature sensor PT100 is used for acquiring the temperature of the motor, and the temperature sensor signal acquisition circuit is connected with an ADCINA0 pin and a VSS pin of the TMS320F2812 main control chip.

Further, the sensor signal acquisition circuit module further includes a motor winding voltage and current acquisition circuit, the motor winding voltage and current acquisition circuit includes a first comparator, the inverting input terminal of the first comparator is connected with one end of a sixth resistor and one end of a seventh resistor, the other end of the sixth resistor is connected with a voltage Vs, the non-inverting input terminal of the first comparator is connected with one end of the tenth resistor and one end of a fifth resistor, the other end of the tenth resistor is connected with a voltage VH, the other end of the fifth resistor is connected with a GND terminal, the other end of the seventh resistor and the output terminal of the first comparator are both connected with one end of an eighth resistor, the other end of the eighth resistor is connected with an inverting input terminal of a second comparator, a voltage Vref is connected to a positive input terminal of the second comparator and an output terminal of the second comparator, an output terminal of the second comparator is connected with an adcin 1 pin and an adcin 2 pin of the tenth resistor, and an output terminal of the second comparator is connected with a TMS 281f 320 chip, and a main control pin 281f 320 is connected with a TMS 2 pin of the TMS 2 chip.

Further, the sensor signal acquisition circuit module further comprises an instrument pressure signal acquisition circuit, and the instrument pressure signal acquisition circuit is connected with an ADCINA3 pin, an ADCINA4 pin and a VSS pin of the TMS320F2812 main control chip.

Further, the rotary transformer signal acquisition circuit, the power output circuit and the electromagnetic valve driving circuit are all connected with a short joint port, and the short joint port is used for being connected with the pumping system;

the rotary transformer signal acquisition circuit comprises an AD2S1200 chip, and the AD2S1200 chip is used for acquiring rotary transformer signals of the motor.

According to the technical scheme, the pumping tester of the formation tester while drilling has the following beneficial effects:

the tester can be used for testing the pumping system, is simple to operate, inputs motor control signals through the operation panel and the real-time display module, and can control the operation of the motor, the on-off of a pumping oil channel and a sample pipeline according to the control signals after the DSP control circuit module receives the control signals, and monitors the operation state and related parameters of the pumping system in real time; the utility model can intuitively know the running states of the motor, the hydraulic system and the fluid suction.

Drawings

FIG. 1 is a block diagram of circuitry of a pump tester of a formation while drilling tester according to an embodiment of the present utility model;

fig. 2 is a diagram of connection relationship between pins of the TMS320F2812 main control chip and other circuits according to an embodiment of the present utility model;

FIG. 3 is a schematic circuit diagram of a power output circuit;

FIG. 4 is a schematic circuit diagram of a solenoid valve drive circuit;

FIG. 5 is a schematic circuit diagram of a temperature sensor signal acquisition circuit;

FIG. 6 is a schematic circuit diagram of a motor winding voltage and current acquisition circuit;

FIG. 7 is a schematic circuit diagram of an instrument pressure signal acquisition circuit;

FIG. 8 is a schematic diagram of a test being pumped using the tester of an embodiment of the present utility model;

the reference numerals in the drawings are: the device comprises a power output circuit 1, an electromagnetic valve driving circuit 2, an operation panel and a real-time display module 3, a TMS320F2812 main control chip 4, a rotary transformer signal acquisition circuit 5, an instrument pressure signal acquisition circuit 6, a motor winding voltage and current acquisition circuit 7, a temperature sensor signal acquisition circuit 8, a power supply 9, an AC-DC motor power supply module 10, a short joint port 11 and a 48-core upper and lower joint connecting cable 12.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, a pump tester for a formation while drilling tester according to the present utility model will be described in further detail with reference to the accompanying drawings.

1-2, a pumping tester of a formation tester while drilling according to an embodiment of the present utility model is shown, including a DSP control circuit module, where the DSP control circuit module is connected with a sensor signal acquisition circuit module, a power output circuit 1, a solenoid valve driving circuit 2, an operation panel and a real-time display module 3, where the sensor signal acquisition circuit module includes a resolver signal acquisition circuit 5, and the resolver signal acquisition circuit 5 is used to acquire a resolver signal of a motor of a pumping system and input the acquired signal to the DSP control circuit module; the operation panel and real-time display module 3 is used for inputting control signals for controlling the motor and displaying operation parameters of the motor; the DSP control circuit module is used for controlling the power output circuit 1 according to the input control signals and the acquired rotary transformer signals, and the power output circuit 1 is used for being connected with a motor of the pumping system so as to drive the motor of the pumping system; the electromagnetic valve driving circuit 2 is used for being connected with an electromagnetic valve of a pumping system so as to realize the purpose of controlling the on-off of the electromagnetic valve of the pumping system through the electromagnetic valve driving circuit 2.

When the tester of the embodiment is used for testing a pumping system, firstly, control signals for controlling a motor are input through an operation panel and a real-time display module 3, the control signals comprise steering signals, start-stop signals, rotating speed signals, current signals, rotating circle signals and the like of the motor, a DSP control circuit module decodes the received control signals and then sends the control signals to a power output module, the motor executes corresponding actions under the control of the power output module, the motor executes corresponding actions to cause the change of rotary change information, so that a rotary transformer signal acquisition circuit 5 is used for acquiring rotary transformer signals of the motor, the DSP control circuit module decodes according to the rotary transformer signals to obtain the rotating angle of the motor, and accordingly, control signals of next angle signals are sent according to the current angle information, and the purpose that the DSP control circuit module controls the motor according to the input control signals and the acquired rotary transformer signals is achieved.

And secondly, the pumping system comprises a motor and various electromagnetic valves, the control of the electromagnetic valve of the pumping system by the tester is realized through a DSP control circuit module and an electromagnetic valve driving circuit 2, the specific DSP control circuit module can generate corresponding control signals, and the electromagnetic valve driving circuit 2 supplies power to the electromagnetic valve or stops supplying power to the electromagnetic valve according to the control signals of the DSP control circuit module, so that the control of the electromagnetic valve of the pumping system is realized.

Meanwhile, the operation panel and the real-time display module 3 are also used for displaying the operation parameters of the motor, so that the operation condition of the motor can be conveniently and intuitively known.

In an embodiment, the tester further comprises a power supply 9 and an AC-DC motor power module 10; the AC-DC motor power supply module 10 includes a first weak current power supply module, a second weak current power supply module, a third weak current power supply module, a fourth weak current power supply module, and a fifth weak current power supply module; wherein: the power supply 9 is connected with the DSP control circuit module through the first weak current power supply module, and the first weak current power supply module is used for converting alternating current of the power supply 9 into direct current of 5V to supply power for the DSP control circuit module; the power supply 9 is connected with the operation panel and the real-time display module 3 through the second weak current power supply module, and the second weak current power supply module is used for converting alternating current of the power supply 9 into direct current of 5V to supply power for the operation panel and the real-time display module 3; the power supply 9 is connected with the sensor signal acquisition circuit module through the third weak current power supply module, and the third weak current power supply module is used for converting alternating current of the power supply 9 into +/-12V direct current to supply power for the sensor signal acquisition circuit module; the power supply 9 is connected with the power output circuit 1 through the fourth weak current power supply module, and the fourth weak current power supply module is used for converting alternating current of the power supply 9 into 12V direct current to supply power for the power output circuit 1; the power supply 9 is connected with the electromagnetic valve driving circuit 2 through the fifth weak current power supply module, and the fifth weak current power supply module is used for converting alternating current of the power supply 9 into direct current of 12V and 28V to supply power for the electromagnetic valve driving circuit 2.

In this embodiment, the AC-DC motor power supply module 10 is configured to convert AC power of the power supply 9 into DC power with required voltage, so as to supply power to the DSP control circuit module, the sensor signal acquisition circuit module, the power output circuit 1, the solenoid valve driving circuit 2, the operation panel and the real-time display module 3, specifically, the power supply 9 is 220V AC mains power, the first weak current power supply module of the AC-DC motor power supply module 10 converts 220V AC power into 5V DC power to supply power to the DSP control circuit module, the second weak current power supply module converts 220V AC power into 5V DC power to supply power to the operation panel and the real-time display module 3, the third weak current power supply module converts 220V AC power into ±12v DC power to supply power to the sensor signal acquisition circuit module, the fourth weak current power supply module converts 220V AC power into 12V DC power to supply power to the power output circuit 1, and the fifth weak current power supply module converts 220V AC power into 12V and 28V DC power to supply power to the solenoid valve driving circuit 2.

In an embodiment, the DSP control circuit module is a TMS320F2812 main control chip 4, the TMS320F2812 main control chip 4 is connected with the operation panel and the real-time display module 3 through an IOB pin GPIOB0 pin, a GPIOB1 pin, a GPIOB2 pin, a GPIOB3 pin, a GPIOB4 pin, a GPIOB5 pin, a GPIOB6 pin and a GPIOB7 pin, and the TMS320F2812 main control chip is connected with the resolver signal acquisition circuit 5 through a SCIRDXA pin, a SCITDXA pin, a spisia pin and a spisate pin.

In an embodiment, as shown in fig. 3, the TMS320F2812 main control chip 4 is connected with the power output circuit 1 through a PWM1 pin, a PWM2 pin, a PWM3 pin, a PWM4 pin, a PWM5 pin and a PWM6 pin;

the power output circuit 1 comprises a first power tube Q1, a second power tube Q2, a third power tube Q3, a fourth power tube Q4, a fifth power tube Q5 and a sixth power tube Q6; wherein:

the grid electrode of the first power tube Q1 is connected with the PWM1 pin of the TMS320F2812 main control chip 4, the drain electrode of the first power tube Q1 is connected with the positive electrode of a power supply, the source electrode of the first power tube Q1 is connected with the drain electrode of the fourth power tube Q4, the source electrode of the fourth power tube Q4 is connected with the negative electrode of the power supply, and the grid electrode of the fourth power tube Q4 is connected with the PWM2 pin of the TMS320F2812 main control chip;

the grid electrode of the second power tube Q2 is connected with the PWM3 pin of the TMS320F2812 main control chip 4, the drain electrode of the second power tube Q2 is connected with the positive electrode of the power supply, the source electrode of the second power tube Q2 is connected with the drain electrode of the fifth power tube Q5, the source electrode of the fifth power tube Q5 is connected with the negative electrode of the power supply, and the grid electrode of the fifth power tube Q5 is connected with the PWM4 pin of the TMS320F2812 main control chip;

the grid electrode of the third power tube Q3 is connected with the PWM5 pin of the TMS320F2812 main control chip 4, the drain electrode of the third power tube Q3 is connected with the positive electrode of the power supply, the source electrode of the third power tube Q3 is connected with the drain electrode of the sixth power tube Q6, the source electrode of the sixth power tube Q6 is connected with the negative electrode of the power supply, and the grid electrode of the sixth power tube Q6 is connected with the PWM6 pin of the TMS320F2812 main control chip 4;

a load outgoing line Ua is connected between the source electrode of the first power tube Q1 and the drain electrode of the fourth power tube Q4, a load outgoing line Ub is connected between the source electrode of the second power tube Q2 and the drain electrode of the fifth power tube Q5, and a load outgoing line Uc is connected between the source electrode of the third power tube Q3 and the drain electrode of the sixth power tube Q6;

the load outgoing line Ua, the load outgoing line Ub and the load outgoing line Uc are respectively connected with three-phase outgoing lines of the motor.

Specifically, the TMS320F2812 main control chip 4 is connected with the power output circuit 1 through a PWM1 pin, a PWM2 pin, a PWM3 pin, a PWM4 pin, a PWM5 pin and a PWM6 pin, so as to output six paths of control signals pmwa_ H, PMWA _ L, PMWB _ H, PMWB _ L, PMWC _h and pmwc_l for the power output circuit 1. The pmwa_h and pmwa_l in the six paths of control signals respectively control two power transistors of the same half bridge, in the embodiment, a first power transistor Q1 and a fourth power transistor Q4; PMWB_H and PMWB_L in the six paths of control signals respectively control two power tubes of the same half bridge, namely a second power tube Q2 and a fifth power tube Q5 in the embodiment; the PMWC_H and the PMWC_L in the six paths of control signals respectively control two power tubes of the same half bridge, namely a third power tube Q3 and a sixth power tube Q6 in the embodiment; each half bridge is connected with a load outgoing line, and the three load outgoing lines are respectively connected with the three-phase outgoing lines of the motor, so that the purpose of supplying power to the motor of the pumping system through the power output circuit 1 is achieved.

In an embodiment, as shown in fig. 4, the solenoid valve driving circuit 2 includes an NCV1413B transistor array and a solenoid valve driving circuit unit, pins 1C and 2C of the NCV1413B transistor array are respectively connected to a terminal a and a terminal B of the solenoid valve driving circuit unit, S01 output terminals of the solenoid valve driving circuit unit are respectively used for being connected to one solenoid valve of a pumping system, the solenoid valve driving circuit unit is used for controlling the solenoid valve through the S01 output terminal, and pins 1B and 2B of the NCV1413B transistor array are connected to pins gpio 10 and gpio 11 of the TMS320F2812 main control chip.

In this embodiment, the solenoid valve driving circuit 2 includes an NCV1413B transistor array and solenoid valve driving circuit units, and one solenoid valve driving circuit unit is configured to supply power to one solenoid valve of the pumping system, so that a corresponding number of solenoid valve driving circuit units can be set according to the number of solenoid valves in the hydraulic pipeline of the pumping system, for one NCV1413B transistor array, three solenoid valve driving circuit units can be connected, where the three solenoid valve driving circuit units are respectively connected to 1C pin and 2C pin, 4C pin and 5C pin, and 6C pin and 7C pin of the NCV1413B transistor array, and the corresponding 1B pin and 2B pin, 4B pin and 5B pin, and 6B pin and 7B pin of the NCV1413B transistor array are respectively connected to gpio 10 pin to gpio 281ob 15 pin of the TMS320F2 main control chip 4. For the case of the NCV1413B transistor array and one solenoid valve driving circuit unit of the present embodiment, the TMS320F2812 main control chip 4 generates two control signals S1A and S1B, the two control signals S1A and S1B pass through the solenoid valve driving circuit unit, the solenoid valve driving circuit unit outputs a control signal at its S01 output terminal, the S01 output terminal is connected with one solenoid valve of the pumping system, and finally the solenoid valve is controlled by the S01 output terminal.

Specifically, the electromagnetic valve driving circuit unit includes a first resistor R01 and a third resistor R03, one end of the first resistor R01 is connected with the end a, the other end of the first resistor R01 is connected with one end of a second resistor R02, the anode of a first diode Z01 and the gate of a MOS transistor Q02, the other end of the second resistor R02, the cathode of the first diode Z01 and the source of the MOS transistor Q02 are all connected with a 28V power supply, the drain of the MOS transistor Q02 is connected with the anode of a fifth diode D03, the cathode of the fifth diode D03 is connected with the anode of a second diode D02, and the cathode of the second diode D02 is connected with the 28V power supply; one end of the third resistor R03 is connected with the end B, the other end of the third resistor R03 is connected with one end of the fourth resistor R04 and the base electrode of the triode Q01, the other end of the fourth resistor R04 and the emitter electrode of the triode Q01 are connected with a 12V power supply, the collector electrode of the triode Q01 is connected with the positive electrode of the third diode D01, the negative electrode of the third diode D01 is connected with the positive electrode of the second diode D02, the negative electrode of the third diode D01 is connected with the negative electrode of the fourth diode D04, the positive electrode of the fourth diode D04 is grounded, and the output end of the S01 is used for being connected with the electromagnetic valve of the pumping system.

In this embodiment, the two paths of control signals S1A and S1B control the solenoid valve connected to the output end of S01 by controlling the on or off of the MOS transistor Q02 in the solenoid valve driving circuit unit. Because the self resistance of the electromagnetic valve is smaller, the electromagnetic valve only needs to be kept in an open state through low voltage after being opened by using high voltage, and the electromagnetic valve driving circuit 2 is arranged to provide the high voltage for opening the electromagnetic valve and keep the electromagnetic valve in a state through low voltage after being opened.

In an embodiment, the sensor signal acquisition circuit module further includes a temperature sensor signal acquisition circuit 8, the temperature sensor signal acquisition circuit 8 includes a temperature sensor PT100, the temperature sensor PT100 is used for acquiring the temperature of the motor, and the temperature sensor signal acquisition circuit is connected with an adccina 0 pin and a VSS pin of the TMS320F2812 main control chip.

Specifically, as shown in fig. 5, the temperature sensor signal acquisition circuit 8 includes a temperature sensor PT100, where the temperature sensor PT100 is used to acquire the temperature of the motor, the voltage corresponding to the measured temperature temp+ is compared with the reference voltage Vref of the comparator, when the temperature rises to the set maximum temperature, the comparator output is turned over, the voltage corresponding to the comparison output temp_high and the measured temperature temp+ is input to the DSP control circuit module, and the comparison output temp_high and the measured temperature temp+ are finally displayed through the operation panel and the real-time display module 3 by conversion of the DSP control circuit module.

The sensor signal acquisition circuit module further comprises a motor winding voltage and current acquisition circuit 7, the motor winding voltage and current acquisition circuit 7 comprises a first comparator, an inverting input end of the first comparator is connected with one end of a sixth resistor R1 and one end of a seventh resistor R2, the other end of the sixth resistor R1 is connected with a voltage Vs, an in-phase input end of the first comparator is connected with one end of a tenth resistor R5 and one end of a fifth resistor R0, the other end of the tenth resistor R5 is connected with a voltage VH, the other end of the fifth resistor R0 is connected with a GND end, the other end of the seventh resistor R2 and the output end of the first comparator are connected with one end of an eighth resistor R3, the other end of the eighth resistor R3 is connected with the inverting input end of a second comparator, a positive input end of the second comparator is connected with a voltage Vref, a positive input end of the second comparator is connected with an output end of the second comparator, a ninth resistor R4 is connected between the positive input end of the second comparator and the output end of the second comparator, the output end of the second comparator is connected with a TMSF 281F 320 chip and the TMSA 2 is connected with the TMSA 320, and the TMSA 320 is connected with the TMSA 2.

As shown in fig. 6, the motor winding voltage and current acquisition circuit is used for acquiring motor winding voltage and current signals, and voltage analog value hv_adin and current analog value cur_adin can be obtained through fig. 6, the acquired analog values are input to AD input pins adcin a2 and adcin a1 of the DSP control circuit module, and the operation panel and the real-time display module 3 are also used for displaying the voltage and current analog values of the motor acquired by the DSP control circuit module. The state of the motor can be conveniently known in time by collecting the current signal and the voltage signal, and meanwhile, whether the motor is locked or not can be judged according to the current signal.

The sensor signal acquisition circuit module further comprises an instrument pressure signal acquisition circuit 6, and the instrument pressure signal acquisition circuit 6 is connected with an ADCINA3 pin, an ADCINA4 pin and a VSS pin of the TMS320F2812 main control chip. The instrument pressure signal acquisition circuit 6 is used for acquiring the pressure of the pumping oil channel and the pressure of the pumping system pipeline, and inputting measured values to the DSP control circuit module, and the operation panel and the real-time display module 3 are also used for displaying the pressure value of the pumping oil channel and the pressure value of the pumping system pipeline. As shown in fig. 7, the instrument pressure signal acquisition circuit is used for acquiring signals of pressure sensors of a hydraulic pipeline and a fluid pipeline in the instrument, the signals are amplified and filtered by the instrument amplifier and then are input to AD input pins adcin 3 and adcin 4 of the TMS320F2812 main control chip, meanwhile, the operation panel and the real-time display module 3 are also used for displaying pressure signals acquired by the DSP control circuit module, and the oil circuit pressure and the pipeline pressure of the pumping system can be conveniently known in time through the instrument pressure signal acquisition circuit.

The rotary transformer signal acquisition circuit 5, the power output circuit 1 and the electromagnetic valve driving circuit 2 are all connected with the short joint port 11, and the short joint port 11 is used for being connected with the pumping system. The short joint port 11 in this embodiment is formed by a 48-core female joint, and when the automatic pumping function test of the short joint is performed, as shown in fig. 8, the tester is connected with the pumping system through a 48-core upper and lower joint connecting cable 12, so that wiring errors of each test are avoided.

From the foregoing, the resolver signal of the motor is collected by the resolver signal collecting circuit 5, and specifically, the resolver signal collecting circuit 5 includes an AD2S1200 chip, and the AD2S1200 chip is used for collecting the resolver signal of the motor.

When the device is specifically used, as shown in fig. 8, a 220VAC power supply is connected, one end of a 48-core upper and lower connector connecting cable 12 is connected with a tester, the other end is connected with a pumping system of a while-drilling instrument, then the device is electrified, parameters such as rotating speed, number of turns, overcurrent protection value and the like when a motor is in forward and reverse rotation are respectively set, a button is controlled according to a motor start command, the motor of the pumping system is started to operate, a DSP control circuit module is used for ensuring the passage of a hydraulic pipeline and a stratum fluid sample pipeline according to a solenoid valve corresponding to a state switch of the motor operation, and therefore various actions and functions of the instrument are completed. When a certain component of the instrument is in a problem, a corresponding protection strategy program is started to stop the operation of the motor, for example, when the current value acquired by the motor winding voltage and current acquisition circuit is greater than the maximum current threshold value, the DSP control circuit module controls the motor to stop operating; if no problem exists, the reciprocating continuous repeated operation can be realized, so that the pumping system can carry out reciprocating fluid pumping and discharging actions, and long-time reliability test is completed.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs.

Furthermore, the terms "a," "an," "the" and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. The pumping tester of the formation tester while drilling is characterized by comprising a DSP control circuit module, wherein the DSP control circuit module is connected with a sensor signal acquisition circuit module, a power output circuit, an electromagnetic valve driving circuit, an operation panel and a real-time display module,

the sensor signal acquisition circuit module comprises a rotary transformer signal acquisition circuit, wherein the rotary transformer signal acquisition circuit and the power output circuit are both used for being connected with a motor of the pumping system;

the solenoid valve drive circuit is configured to be coupled to a solenoid valve of a pumping system.

2. The pump tester of the formation while drilling tester of claim 1, further comprising a power supply and an AC-DC motor power module;

the AC-DC motor power supply module comprises a first weak current power supply module, a second weak current power supply module, a third weak current power supply module, a fourth weak current power supply module and a fifth weak current power supply module; wherein:

the power supply is connected with the DSP control circuit module through the first weak current power supply module;

the power supply is connected with the operation panel and the real-time display module through the second weak current power supply module;

the power supply is connected with the sensor signal acquisition circuit module through the third weak current power supply module;

the power supply is connected with the power output circuit through the fourth weak current power supply module;

and the power supply is connected with the electromagnetic valve driving circuit through the fifth weak current power supply module.

3. The pump tester of the formation while drilling tester according to claim 1, wherein the DSP control circuit module is a TMS320F2812 main control chip, and the TMS320F2812 main control chip is connected with the operation panel and the real-time display module through IOB pins GPIOB0, GPIOB1, GPIOB2, GPIOB3, GPIOB4, GPIOB5, GPIOB6 and GPIOB 7;

the TMS320F2812 main control chip is connected with the rotary transformer signal acquisition circuit through a SCIRDXA pin, a SCITDXA pin, a SPISOMIA pin and a SPISTE pin.

4. A pump tester for formation while drilling tester according to claim 3, wherein the TMS320F2812 main control chip is connected with the power output circuit through PWM1 pin, PWM2 pin, PWM3 pin, PWM4 pin, PWM5 pin and PWM6 pin;

the power output circuit comprises a first power tube (Q1), a second power tube (Q2), a third power tube (Q3), a fourth power tube (Q4), a fifth power tube (Q5) and a sixth power tube (Q6); wherein:

the grid electrode of the first power tube (Q1) is connected with the PWM1 pin of the TMS320F2812 main control chip, the drain electrode of the first power tube (Q1) is connected with the positive electrode of a power supply, the source electrode of the first power tube (Q1) is connected with the drain electrode of the fourth power tube (Q4), the source electrode of the fourth power tube (Q4) is connected with the negative electrode of the power supply, and the grid electrode of the fourth power tube (Q4) is connected with the PWM2 pin of the TMS320F2812 main control chip;

the grid electrode of the second power tube (Q2) is connected with the PWM3 pin of the TMS320F2812 main control chip, the drain electrode of the second power tube (Q2) is connected with the positive electrode of the power supply, the source electrode of the second power tube (Q2) is connected with the drain electrode of the fifth power tube (Q5), the source electrode of the fifth power tube (Q5) is connected with the negative electrode of the power supply, and the grid electrode of the fifth power tube (Q5) is connected with the PWM4 pin of the TMS320F2812 main control chip;

the grid electrode of the third power tube (Q3) is connected with the PWM5 pin of the TMS320F2812 main control chip, the drain electrode of the third power tube (Q3) is connected with the positive electrode of the power supply, the source electrode of the third power tube (Q3) is connected with the drain electrode of the sixth power tube (Q6), the source electrode of the sixth power tube (Q6) is connected with the negative electrode of the power supply, and the grid electrode of the sixth power tube (Q6) is connected with the PWM6 pin of the TMS320F2812 main control chip;

a load lead-out wire Ua is connected between the source electrode of the first power tube (Q1) and the drain electrode of the fourth power tube (Q4), a load lead-out wire Ub is connected between the source electrode of the second power tube (Q2) and the drain electrode of the fifth power tube (Q5), and a load lead-out wire Uc is connected between the source electrode of the third power tube (Q3) and the drain electrode of the sixth power tube (Q6);

the load outgoing line Ua, the load outgoing line Ub and the load outgoing line Uc are respectively connected with three-phase outgoing lines of the motor.

5. A pump down tester of a formation while drilling tester as claimed in claim 3, wherein the solenoid driver circuit comprises an NCV1413B transistor array and a solenoid driver circuit unit; the pins 1C and 2C of the NCV1413B transistor array are respectively connected with the end A and the end B of the electromagnetic valve driving circuit unit, the output end S01 of the electromagnetic valve driving circuit unit is respectively used for being connected with one electromagnetic valve of a pumping system, and the pins 1B and 2B of the NCV1413B transistor array are respectively connected with the pins GPIO 10 and GPIO 11 of the TMS320F2812 main control chip.

6. The pumping tester of the formation while drilling tester according to claim 5, wherein the electromagnetic valve driving circuit unit comprises a first resistor (R01) and a third resistor (R03), one end of the first resistor (R01) is connected with the a end, the other end of the first resistor (R01) is connected with one end of a second resistor (R02), the anode of a first diode (Z01) and the grid electrode of a MOS transistor (Q02), the other end of the second resistor (R02), the cathode of the first diode (Z01) and the source electrode of the MOS transistor (Q02) are all connected with a 28V power supply, the drain electrode of the MOS transistor (Q02) is connected with the anode of a fifth diode (D03), the cathode of the fifth diode (D03) is connected with the anode of a second diode (D02), and the cathode of the second diode (D02) is connected with the 28V power supply; one end of a third resistor (R03) is connected with the end B, the other end of the third resistor (R03) is connected with one end of a fourth resistor (R04) and a base electrode of a triode (Q01), the other end of the fourth resistor (R04) and an emitting electrode of the triode (Q01) are connected with a 12V power supply, a collecting electrode of the triode (Q01) is connected with an anode of a third diode (D01), a cathode of the third diode (D01) is connected with an anode of a second diode (D02), a cathode of the third diode (D01) is connected with an S01 output end and a cathode of the fourth diode (D04), an anode of the fourth diode (D04) is grounded, and the S01 output end is used for being connected with an electromagnetic valve of the pumping system.

7. A pump tester for a formation while drilling tester according to claim 3, wherein the sensor signal acquisition circuit module further comprises a temperature sensor signal acquisition circuit, the temperature sensor signal acquisition circuit comprising a temperature sensor PT100, the temperature sensor PT100 being configured to acquire the temperature of the motor, the temperature sensor signal acquisition circuit being connected to the adcin a0 pin and the VSS pin of the TMS320F2812 main control chip.

8. The pumping tester of the formation while drilling tester according to claim 3, wherein the sensor signal acquisition circuit module further comprises a motor winding voltage and current acquisition circuit, the motor winding voltage and current acquisition circuit comprises a first comparator, an inverting input end of the first comparator is connected with one end of a sixth resistor (R1) and one end of a seventh resistor (R2), the other end of the sixth resistor (R1) is connected with a voltage Vs, an in-phase input end of the first comparator is connected with one end of a tenth resistor (R5) and one end of a fifth resistor (R0), the other end of the tenth resistor (R5) is connected with a voltage VH, the other end of the fifth resistor (R0) is connected with a GND end, the other end of the seventh resistor (R2) and an output end of the first comparator are connected with one end of an eighth resistor (R3), the other end of the eighth resistor (R3) is connected with an inverting input end of a second comparator, a non-phase input end of the second comparator is connected with a voltage Vref, the other end of the second comparator is connected with a positive input end of the second resistor (adf 5) and one end of the second resistor (tmsa 2), and the other end of the fifth resistor (tmsa) is connected with a main control pin 320, and the output pin 320 of the second comparator is connected with a main control pin 320.

9. A pump tester for a formation while drilling tester as claimed in claim 3, wherein the sensor signal acquisition circuit module further comprises an instrument pressure signal acquisition circuit connected to the adcin 3, adcin 4 and VSS pins of the TMS320F2812 main control chip.

10. The pumping tester of the formation while drilling tester according to claim 1, wherein the rotary transformer signal acquisition circuit, the power output circuit, and the solenoid valve drive circuit are all connected with a nipple port for connection with the pumping system;

the rotary transformer signal acquisition circuit comprises an AD2S1200 chip, and the AD2S1200 chip is used for acquiring rotary transformer signals of the motor.