CN215169950U - Vehicle-mounted pressure testing device for testing pressure of wellhead of oil well and gas well - Google Patents
Vehicle-mounted pressure testing device for testing pressure of wellhead of oil well and gas well Download PDFInfo
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- CN215169950U CN215169950U CN202121470730.XU CN202121470730U CN215169950U CN 215169950 U CN215169950 U CN 215169950U CN 202121470730 U CN202121470730 U CN 202121470730U CN 215169950 U CN215169950 U CN 215169950U
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Abstract
The utility model provides a vehicular pressure testing device for oil and gas well mouth pressure test, which comprises a bottom prying seat, wherein an electrical control cabinet, a motor, a pressure control valve group and a water tank are arranged on the bottom prying seat; the electrical control cabinet comprises: the three-phase alternating current power supply is connected with a three-phase wiring terminal of the motor through a frequency converter; the motor is connected with a pump head, the pump head is connected with a water outlet of the water tank through a first pipeline, the pump head is connected with an inlet of the pressure control valve group through a second pipeline, and an outlet of the pressure control valve group is connected with a high-pressure rubber pipe; the control end of the pressure control valve group is electrically connected with the output end of the MCU controller, and the input end of the MCU controller is electrically connected with the output end of the pressure sensor; the pressure sensor is arranged on the second pipeline; the utility model has the beneficial effects of simple structure, convenient arrangement, and is suitable for the well head pressure test field.
Description
Technical Field
The utility model relates to a technical field of well head pressure test, concretely relates to vehicular pressure testing device for oil, gas well head pressure test.
Background
When natural gas is exploited, the pressure of the natural gas needs to be detected
When oil and gas are produced, as an important way for safety monitoring, pressure measurement needs to be carried out through a wellhead before oil/gas is produced; at present, a common pressure test device mainly comprises a pressure test pump, a pressure test pipeline and a pressure sensor, and the pressure test device is generally transported to a well site by a tool vehicle, and subjected to pressure test operation after being distributed and connected on site.
During the pressure testing, the pressure testing pipeline is connected with wellhead equipment, on the pressure testing pipeline was installed to pressure sensor, the pressure testing pump was through the pressure testing pipeline to wellhead equipment water injection pressurization, and the data that pressure sensor gathered are through the manometer demonstration on the operation panel, reach the pressure testing after setting for the pressure value, stop the pressure testing pump, observe the pressure value in the certain time, according to the pressure value situation of change, judge whether have the circumstances such as leakage, blasting, and then assess wellhead equipment pressure-resistant capacity.
In the above process, there are problems as follows:
the pressure testing device comprises a plurality of scattered equipment, needs transport to the scene and assembles and put, because each equipment structure and volume are great for the pressure testing device not only moves inconveniently, and the scene is put and is assembled and need consume a large amount of time, and work efficiency is low.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists in the correlation technique, the utility model discloses the technical problem that will solve lies in: the vehicle-mounted pressure testing device for testing the pressure of the wellhead of the oil well and the gas well is simple in structure and convenient to arrange.
In order to solve the technical problem, the utility model discloses a technical scheme does:
a vehicle-mounted pressure test device for testing the pressure of a wellhead of an oil well and a gas well comprises a bottom prying seat, wherein an electrical control cabinet, a motor, a pressure control valve group and a water tank are arranged on the bottom prying seat; the electrical control cabinet comprises: the three-phase alternating current power supply is connected with a three-phase wiring terminal of the motor through a frequency converter; the motor is connected with a pump head, the pump head is connected with a water outlet of the water tank through a first pipeline, the pump head is connected with an inlet of the pressure control valve group through a second pipeline, and an outlet of the pressure control valve group is connected with a high-pressure rubber pipe; the control end of the pressure control valve group is electrically connected with the output end of the MCU controller, and the input end of the MCU controller is electrically connected with the output end of the pressure sensor; the pressure sensor is arranged on the second pipeline.
Preferably, the pressure control valve assembly includes: an electric pressure relief valve and a pressure retaining valve;
the electric pressure relief valve and the pressure maintaining valve are arranged on a pipeline between the inlet and the outlet in parallel, and the control end of the electric pressure relief valve and the control end of the pressure maintaining valve are electrically connected with the output end of the MCU controller.
Preferably, the three-phase alternating current power supply is connected with the start-stop end of the motor through the brake controller.
Preferably, a fuse FU1 and a breaker DZ1 are arranged between the three-phase alternating current power supply and the motor;
the three-phase alternating current power supply is characterized in that the wire outlet end of the three-phase alternating current power supply is connected with the wire inlet end of the circuit breaker DZ1 after being connected with a group of fuses FU1 in series, the wire outlet end of the circuit breaker DZ1 is connected with the wire inlet end of the frequency converter, and the wire outlet end of the frequency converter is connected with the power supply end of the motor.
Preferably, the brake controller includes: a switch SB1, a switch SB2, a contactor KM1, a contactor KM2 and a relay KT 1;
one end of the switch SB1 is respectively connected with one end of a normally open contact KM1.3 of the contactor KM1 and one end of a break contact of the switch SB2, and the other end of the break contact of the switch SB2 is respectively connected with one end of a fuse FU2, one end of a break contact of the switch SB2 and one end of a normally open contact KM2.3 of the contactor KM 2; the other end of the fuse FU2 is electrically connected with a wire outlet end U of a three-phase alternating-current power supply;
the other end of the switch SB1 is respectively connected with the other end of a normally open contact KM1.3 of a contactor KM1 and one end of a normally closed contact KM2.2 of a contactor KM2, the other end of the normally closed contact KM2.2 of the contactor KM2 is connected with one end of a coil KM1.1 of a contactor KM1, the other end of the coil KM1.1 of the contactor KM1 is respectively connected with one end of a coil KM2.1 of a contactor KM2 and one end of a coil KT1.1 of a relay KT1, and one end of a fuse FU3 is connected, and the other end of the fuse FU2 is electrically connected with a leading-out terminal V of a three-phase alternating-current power supply;
the other end of the coil KM2.1 of the contactor KM2 is connected in series with the normally closed contact KM1.2 of the contactor KM1 and then is connected with the other end of the dynamic contact of the switch SB2, the other end of the normally open contact KM2.3 of the contactor KM2 and the other end of the coil KT1.1 of the relay KT 1;
the normally open contact KM2.4 of the contactor KM2 and the normally open contact KM1.4 of the contactor KM1 are connected in parallel and arranged on a line between the circuit breaker DZ1 and the incoming line end of the frequency converter.
Preferably, the motor is connected with a crankshaft connecting rod mechanism of the pump head through a narrow V-belt.
Preferably, the pump head is a ceramic triplex plunger pump head.
The utility model has the advantages of:
1. the utility model relates to a vehicular pressure testing device for oil, gas well head pressure test sets up electrical control cabinet, motor, pressure control valves and water tank integration on bottom sled seat, compares with traditional pressure testing device, removes and fixes a position nimble, convenient, has reduced the time of on-the-spot dismouting, has improved work efficiency.
2. The utility model discloses in, set up electronic relief valve, not only can finish the back automatic pressure release at whole test procedure, still possess the effect of large-traffic quick step-down earial drainage, can guarantee that medium pressure is under the settlement pressure in the pipeline, protective apparatus and pipeline prevent accident.
3. The utility model discloses in, with electronic relief valve, the pressure retaining valve is integrated to be set up in the pressure control valves, make overall structure and volume reduce by a wide margin and compact, reduce the fault rate at each connection position simultaneously.
4. The utility model discloses in, the pump head adopts ceramic triplex plunger pump head, owing to adopted ceramic plunger material, has hardness height, wear-resisting, high temperature resistant, corrosion resisting performance such as, has improved the life-span and the reliability of pump head, and then has reduced the fault rate incidence.
Drawings
Fig. 1 is a schematic circuit structure diagram of a vehicle-mounted pressure testing device for testing the wellhead pressure of an oil well and a gas well of the utility model;
FIG. 2 is a schematic view of the pipeline connection of the present invention;
fig. 3 is a schematic diagram of the circuit structure of the present invention;
FIG. 4 is a circuit diagram of the three-phase AC power source, the brake controller and the frequency converter;
in the figure:
the device comprises a base prying seat 1, an electrical control cabinet 2, a motor 3, a pressure control valve group 4, a water tank 5, a pump head 6, a first pipeline 7, a second pipeline 8, an inlet 9, an outlet 10, a brake controller 11, an MCU controller 12 and a pressure sensor 13, wherein the prying seat is arranged at the bottom of the base prying seat;
201 is a three-phase alternating current power supply, and 202 is a frequency converter;
401 is an electric pressure relief valve, 402 is a pressure retaining valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of illustration, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
The following describes an embodiment of the vehicle-mounted pressure testing device for testing wellhead pressure of oil wells and gas wells in detail with reference to the accompanying drawings.
Example one
Fig. 1 is a schematic circuit structure diagram of a vehicle-mounted pressure testing device for testing the wellhead pressure of an oil well and a gas well of the utility model; FIG. 2 is a schematic view of the pipeline connection of the present invention; fig. 3 is a schematic diagram of the circuit structure of the present invention; as shown in fig. 1 to 3, the vehicle-mounted pressure testing device for testing the wellhead pressure of the oil well and the gas well comprises a bottom prying seat 1, wherein an electrical control cabinet 2, a motor 3, a pressure control valve group 4 and a water tank 5 are arranged on the bottom prying seat 1;
the electrical control cabinet 2 includes: a three-phase alternating current power supply 201, wherein the three-phase alternating current power supply 201 is connected with a three-phase terminal of the motor 3 through a frequency converter 202;
the motor 3 is connected with a pump head 6, the pump head 6 is connected with a water outlet of the water tank 5 through a first pipeline 7, the pump head 6 is connected with an inlet 9 of the pressure control valve group 4 through a second pipeline 8, and an outlet 10 of the pressure control valve group 4 is connected with a high-pressure rubber pipe;
the control end of the pressure control valve group 4 is electrically connected with the output end of the MCU controller 12, and the input end of the MCU controller 12 is electrically connected with the output end of the pressure sensor 13;
the pressure sensor 13 is arranged on the second line 8.
In this embodiment, the motor 3 is connected with a crankshaft connecting rod mechanism of the pump head 6 through a narrow V-belt; the pump head 6 is a ceramic three-cylinder plunger pump head.
When the device is used, the motor and the pump head are connected through Gj-4 to form a narrow V belt, and a crankshaft connecting rod mechanism of the pump head is driven to convert rotary motion into reciprocating motion; and the cross head connected with the crankshaft connecting rod mechanism drives the plunger piston to reciprocate in the hydraulic cylinder, so that a working medium forms high-pressure liquid through the suction and discharge valve to enter the pressure control valve group, and the high-pressure liquid enters the testing wellhead through the pressure retaining valve, the pressure sensor, the electric pressure relief ball valve and the high-pressure rubber pipe of the connector.
The utility model relates to a vehicular pressure testing device for oil, gas well head pressure test sets up electrical control cabinet, motor, pressure control valves and water tank integration on bottom sled seat, compares with traditional pressure testing device, removes and fixes a position nimble, convenient, has reduced the time of on-the-spot dismouting, has improved work efficiency.
In particular, the pressure control valve group 4 comprises: an electric relief valve 401 and a pressure retaining valve 402; the electric pressure relief valve 401 and the pressure retaining valve 402 are arranged on a pipeline between the inlet 9 and the outlet 10 in parallel, and the control end of the electric pressure relief valve 401 and the control end of the pressure retaining valve 402 are both electrically connected with the output end of the MCU controller 12.
The utility model discloses in, set up electronic relief valve, not only can finish the back automatic pressure release at whole test procedure, still possess the effect of large-traffic quick step-down earial drainage, can guarantee that medium pressure is under the settlement pressure in the pipeline, protective apparatus and pipeline prevent accident.
Further, the three-phase ac power supply 201 is connected to the start/stop terminal of the motor 3 through the brake controller 11.
In the utility model, the pump head adopts a ceramic three-cylinder plunger pump head, and has the advantages of high synchronous speed of the motor and small volume of the pump (compared with the traditional pump head, 2/3 is reduced); meanwhile, as the ceramic plunger piston material is adopted, the pump head has the properties of high hardness, wear resistance, high temperature resistance, corrosion resistance and the like, the service life and the reliability of the pump head are improved, and the failure rate is further reduced.
In the embodiment, the MCU controller can set parameters such as a pressure threshold, pressure maintaining time, pressure relief time and the like through the human-computer interaction interface, and automatic pressure control is realized under the cooperation of the pressure sensor; meanwhile, the MCU controller can be connected with a printer and other devices to complete the functions of data acquisition, curve drawing, report printing and the like of the whole process.
Example two
On the basis of the first embodiment, a vehicle-mounted pressure testing device for testing the wellhead pressure of an oil well and a gas well is characterized in that a fuse FU1 and a breaker DZ1 are arranged between a three-phase alternating-current power supply 201 and a motor 3;
the outlet end of the three-phase alternating current power supply 201 is connected with a group of fuses FU1 in series and then is connected with the inlet end of a circuit breaker DZ1, the outlet end of the circuit breaker DZ1 is connected with the inlet end of the frequency converter 202, and the outlet end of the frequency converter 202 is connected with the power supply end of the motor 3.
Specifically, the brake controller 11 includes: a switch SB1, a switch SB2, a contactor KM1, a contactor KM2 and a relay KT 1;
one end of the switch SB1 is respectively connected with one end of a normally open contact KM1.3 of the contactor KM1 and one end of a break contact of the switch SB2, and the other end of the break contact of the switch SB2 is respectively connected with one end of a fuse FU2, one end of a break contact of the switch SB2 and one end of a normally open contact KM2.3 of the contactor KM 2; the other end of the fuse FU2 is electrically connected with an outlet terminal U of the three-phase alternating-current power supply 201;
the other end of the switch SB1 is respectively connected with the other end of a normally open contact KM1.3 of a contactor KM1 and one end of a normally closed contact KM2.2 of a contactor KM2, the other end of the normally closed contact KM2.2 of the contactor KM2 is connected with one end of a coil KM1.1 of a contactor KM1, the other end of the coil KM1.1 of the contactor KM1 is respectively connected with one end of a coil KM2.1 of a contactor KM2 and one end of a coil KT1.1 of a relay KT1, and one end of a fuse FU3 is connected, and the other end of the fuse FU2 is electrically connected with a leading-out end V of a three-phase alternating-current power supply 201;
the other end of the coil KM2.1 of the contactor KM2 is connected in series with the normally closed contact KM1.2 of the contactor KM1 and then is connected with the other end of the dynamic contact of the switch SB2, the other end of the normally open contact KM2.3 of the contactor KM2 and the other end of the coil KT1.1 of the relay KT 1;
the normally open contact KM2.4 of the contactor KM2 and the normally open contact KM1.4 of the contactor KM1 are connected in parallel and arranged on a line between the circuit breaker DZ1 and the incoming line end of the frequency converter 202.
In the second embodiment, the contactor KM1 is used for controlling the motor to rotate forwards, the contact KM2 is used for controlling the motor to rotate backwards, when the switch SB1 is pressed, the contactor KM1 is powered on and self-locked, the motor is directly started, and the coil KM1.1 of the contactor KM1 is powered on to enable the normally closed contact kml.2 to be disconnected for interlocking; when the rotating speed of the motor is increased, a normally open contact KT1.2 of a relay KT1 is closed, and preparation is made for the connection of a contactor KM 2;
when the vehicle is parked, the switch SB2 is pressed, the break contact is disconnected, the make contact is closed, the contactor KM1 is released after power failure, the break interlocking contact KMl.2 is closed again, the KM2 is electrified and sucked, and the power supply of the motor is reversely connected for reverse connection braking; the rotating speed of the motor is rapidly reduced, when the rotating speed is close to zero, the contact KT1.2 of the relay is disconnected, the KM2 is disconnected and released, the motor is separated from a power supply, and braking is finished.
Furthermore, the utility model discloses in, use through the cooperation of brake controller 11 and MCU controller, also can realize accurate shut down pressurize function.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a vehicular pressure testing device for oil, gas well head pressure test which characterized in that: the electric control cabinet pressure control device comprises a bottom prying seat (1), wherein an electric control cabinet (2), a motor (3), a pressure control valve bank (4) and a water tank (5) are arranged on the bottom prying seat (1);
the electrical control cabinet (2) comprises: the three-phase alternating current power supply (201), the three-phase alternating current power supply (201) is connected with the three-phase terminal of the motor (3) through the frequency converter (202);
the motor (3) is connected with a pump head (6), the pump head (6) is connected with a water outlet of the water tank (5) through a first pipeline (7), the pump head (6) is connected with an inlet (9) of the pressure control valve group (4) through a second pipeline (8), and an outlet (10) of the pressure control valve group (4) is connected with a high-pressure rubber pipe;
the control end of the pressure control valve group (4) is electrically connected with the output end of an MCU (microprogrammed control unit) controller (12), and the input end of the MCU controller (12) is electrically connected with the output end of a pressure sensor (13);
the pressure sensor (13) is arranged on the second pipeline (8).
2. The vehicle-mounted pressure test device for testing the pressure of the wellhead of the oil and gas well is characterized in that: the pressure control valve group (4) comprises: an electric pressure relief valve (401) and a pressure retaining valve (402);
the electric pressure relief valve (401) and the pressure retaining valve (402) are arranged on a pipeline between the inlet port (9) and the outlet port (10) in parallel, and the control end of the electric pressure relief valve (401) and the control end of the pressure retaining valve (402) are electrically connected with the output end of the MCU controller (12).
3. The vehicle-mounted pressure test device for testing the pressure of the wellhead of the oil and gas well is characterized in that: and the three-phase alternating current power supply (201) is connected with the start-stop end of the motor (3) through the brake controller (11).
4. The vehicle-mounted pressure test device for the pressure test of the wellhead of the oil and gas well is characterized in that: a fuse FU1 and a breaker DZ1 are arranged between the three-phase alternating current power supply (201) and the motor (3);
the three-phase alternating current power supply (201) is characterized in that an outlet end of the three-phase alternating current power supply (201) is connected with an inlet end of a circuit breaker DZ1 after being connected with a group of fuses FU1 in series, an outlet end of the circuit breaker DZ1 is connected with an inlet end of a frequency converter (202), and an outlet end of the frequency converter (202) is connected with a power supply end of a motor (3).
5. The vehicle-mounted pressure test device for testing the wellhead pressure of the oil and gas well is characterized in that: the brake controller (11) includes: a switch SB1, a switch SB2, a contactor KM1, a contactor KM2 and a relay KT 1;
one end of the switch SB1 is respectively connected with one end of a normally open contact KM1.3 of the contactor KM1 and one end of a break contact of the switch SB2, and the other end of the break contact of the switch SB2 is respectively connected with one end of a fuse FU2, one end of a break contact of the switch SB2 and one end of a normally open contact KM2.3 of the contactor KM 2; the other end of the fuse FU2 is electrically connected with an outlet terminal U of the three-phase alternating current power supply (201);
the other end of the switch SB1 is respectively connected with the other end of a normally open contact KM1.3 of a contactor KM1 and one end of a normally closed contact KM2.2 of a contactor KM2, the other end of the normally closed contact KM2.2 of the contactor KM2 is connected with one end of a coil KM1.1 of a contactor KM1, the other end of the coil KM1.1 of the contactor KM1 is respectively connected with one end of a coil KM2.1 of a contactor KM2 and one end of a coil KT1.1 of a relay KT1, and one end of a fuse FU3 is connected, and the other end of the fuse FU2 is electrically connected with a wire outlet end V of an alternating-current three-phase power supply (201);
the other end of the coil KM2.1 of the contactor KM2 is connected in series with the normally closed contact KM1.2 of the contactor KM1 and then is connected with the other end of the dynamic contact of the switch SB2, the other end of the normally open contact KM2.3 of the contactor KM2 and the other end of the coil KT1.1 of the relay KT 1;
the normally open contact KM2.4 of the contactor KM2 and the normally open contact KM1.4 of the contactor KM1 are connected in parallel and arranged on a line between the circuit breaker DZ1 and the incoming line end of the frequency converter (202).
6. The vehicle-mounted pressure test device for testing the pressure of the wellhead of the oil and gas well is characterized in that: the motor (3) is connected with a crankshaft connecting rod mechanism of the pump head (6) through a connected narrow V-shaped belt.
7. The vehicle-mounted pressure test device for testing the pressure of the wellhead of the oil and gas well is characterized in that: the pump head (6) is a ceramic three-cylinder plunger pump head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121470730.XU CN215169950U (en) | 2021-06-30 | 2021-06-30 | Vehicle-mounted pressure testing device for testing pressure of wellhead of oil well and gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121470730.XU CN215169950U (en) | 2021-06-30 | 2021-06-30 | Vehicle-mounted pressure testing device for testing pressure of wellhead of oil well and gas well |
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| CN215169950U true CN215169950U (en) | 2021-12-14 |
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| CN202121470730.XU Active CN215169950U (en) | 2021-06-30 | 2021-06-30 | Vehicle-mounted pressure testing device for testing pressure of wellhead of oil well and gas well |
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| CN (1) | CN215169950U (en) |
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2021
- 2021-06-30 CN CN202121470730.XU patent/CN215169950U/en active Active
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