CN220751209U

CN220751209U - Temperature and pressure transmitter connecting device

Info

Publication number: CN220751209U
Application number: CN202322552829.XU
Authority: CN
Inventors: 郭旭东; 邵勇; 张建国; 王燕; 李守钦; 姜建华
Original assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Shengli Oilfield Co
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-04-09
Anticipated expiration: 2033-09-20

Abstract

The utility model discloses a temperature and pressure transmitter connecting device which comprises a flow guiding mechanism and an assembling mechanism, wherein the flow guiding mechanism is connected to a wellhead device. When the temperature and pressure transmitter and the temperature sensor need to be detected and replaced, the control valve is closed, the produced liquid is released and emptied through the emptying valve, and the temperature and pressure transmitter and the temperature sensor can be detached, so that the temperature and pressure transmitter and the temperature sensor are convenient to detach and do not influence wellhead flow and oil well production.

Description

Temperature and pressure transmitter connecting device

Technical Field

The utility model relates to a device for measuring temperature or pressure in soil layer or rock drilling, in particular to a connection device of a temperature-pressure transmitter.

Background

As is well known, temperature transmitters and pressure transmitters are metering instruments which can be directly installed on the wellhead flow of each oil pumping unit in an oil field and are used for measuring and transmitting temperature and pressure data of produced liquid. For convenience of communication, engineering personnel often collectively refer to temperature transmitters and pressure transmitters as "temperature and pressure transmitters" or "temperature and pressure changes".

In order to ensure the accuracy of the metering instrument, the warm-pressure transmitter needs to be regularly calibrated and frequently replaced, so that the disassembly and assembly of the warm-pressure transmitter become a non-negligible problem in production. The existing operation mode is to stop the pumping unit first, let the wellhead flow pressure release, then dismantle and change the temperature and pressure transducer, it not only has complicated operation, increases the engineering personnel intensity of labour, also breaks the oil extraction continuity, influences the output, improves the process and resumes the cost.

The engineering personnel aim at completing the disassembly and assembly of the warm-pressing transmitter under the working condition that the pumping unit is not stopped, and achieve a certain achievement, for example, in the Chinese patent application No. 2016208907401, a wellhead warm-pressing integrated installation device is disclosed, and comprises a three-way pipe, a verification pipe and a communicating pipe, wherein the three-way pipe is connected with the communicating pipe at a lower port of the three-way pipe, a temperature transmitter is inserted into an upper port of the three-way pipe, the verification pipe is connected with a side port of the three-way pipe, a pressure detection pipe is vertically connected to the verification pipe, and a pressure transmitter is inserted into the pressure detection pipe. And the port of the verification tube is a verification interface. The verification pipe is also vertically connected with a blow-down pipe, a blow-down valve is arranged on the blow-down pipe, and the axial direction of the blow-down pipe is consistent with that of the pressure detection pipe; a ball valve is arranged between the lower port of the three-way pipe and the communicating pipe; the communicating pipe is connected with the wellhead flow and the trunk line at the same time. The special process of temperature and pressure change is added by modifying the wellhead process, but the wellhead welding needs fire operation in the assembly process, so that the potential safety hazard is large. In addition, the produced fluid needs to travel a longer path to reach the temperature and pressure change measuring device, and the accuracy of the measured data is poor.

For another example, in the chinese patent application No. 2022225980475, an "on-line calibration device for a wellhead temperature and pressure integrated transmitter" is disclosed, which includes a standard temperature collecting sleeve, a rod-type temperature sensor, a pressure transmitter, a movable vent valve, a pressure collecting nipple, an oil-water isolator, a pipe fitting and a quick connector, wherein the standard temperature collecting sleeve includes a bottomed outer cylinder and a bottomed inner cylinder, the bottomed inner cylinder is sleeved in the middle part of an inner cavity of the bottomed outer cylinder, a space is provided between the bottom wall of the bottomed inner cylinder and the bottom wall of the bottomed outer cylinder, the bottomed inner cylinder is filled with heat-conducting oil, and the lower part of the rod-type temperature sensor is inserted into the heat-conducting oil of the bottomed inner cylinder. The temperature and pressure integrated transmitter is used for real-time comparison and calibration of data acquired by acquiring wellhead actual temperature and pressure data through the rod type temperature sensor and the pressure transmitter, but the temperature and pressure integrated transmitter is complex in structure and large in occupied space, and occupies a temperature and pressure change and replacement operation space.

For another example, a "non-stop well dismounting temperature and pressure transmitter device" is disclosed in the chinese patent application No. 2022226958479, which comprises a temperature and pressure transmitter, a meter connector, a valve connector, a temperature sensing pipe connector, a test head, a sensing wire and a long temperature sensing pipe, wherein the temperature and pressure transmitter is connected with the test head through the meter connector and the valve connector by screw threads, is connected with the temperature sensing pipe connector nut by the sensing wire, the temperature sensing pipe connector and the long temperature sensing pipe are connected with a temperature sensing rod, so as to perform the function of measuring temperature, and the measured temperature information is transmitted to the temperature and pressure transmitter through the sensing wire. The temperature and pressure transmitter device for disassembly and assembly without stopping the well has a certain distance from a produced liquid flow channel, and is free of a drainage device, and part of dead oil can remain at the inlet position of the device in the long-time production process, so that the accuracy of temperature and pressure measurement is greatly reduced.

The technical scheme, the technical problems to be solved and the generated beneficial effects of the disclosed technology are different from those of the utility model, or the technical field or application occasion is different, and the technical documents disclosed above have no technical teaching aiming at more technical features, the technical problems to be solved and the beneficial effects of the utility model.

Disclosure of Invention

In order to overcome the installation of current warm-pressing changer exist structure complicacy, occupation space is big, workman dismouting intensity of labour is high, the potential safety hazard is big, influence detect the not enough of data accuracy, the utility model provides a simple structure, saving space, easy dismounting, potential safety hazard are little, detect the warm-pressing changer connecting device that the influence is little.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a warm-pressing changer connecting device, its includes guiding mechanism and assembly devices, guiding mechanism connects on wellhead assembly, its characterized in that, assembly devices includes cylindricality mount pad and control valve, the one end of cylindricality mount pad is connected with guiding mechanism, opens along the axial on the cylindricality mount pad has the drainage hole, and the one end that the drainage hole kept away from guiding mechanism is equipped with the temperature sensor mounting hole, opens respectively at cylindricality mount pad outer peripheral face has atmospheric valve mounting hole and temperature and pressure change mounting hole, and atmospheric valve mounting hole, temperature and pressure change mounting hole are through the intercommunicating pore and the drainage hole intercommunication in the cylindricality mount pad, the on or off of control valve control intercommunicating pore.

Preferably, the control valve comprises a valve cover, a valve rod and a hand wheel, wherein a valve groove is radially formed in the cylindrical mounting seat and is communicated with the communication hole, the valve cover is sealed on the valve groove, the working end of the valve rod penetrates through the valve cover and stretches into the valve groove to block or be far away from the communication hole, and the hand wheel is arranged on the operating end of the hand valve rod; the valve cover is provided with an internal thread, the valve rod corresponding to the internal thread is provided with an external thread, and the internal thread is screwed with the external thread.

Preferably, the working end of the valve rod is conical, and the valve rod realizes the contact and the separation of the conical surface and the communication hole through the axial action.

Preferably, a packing groove is arranged at one end of the valve cover far away from the cylindrical mounting seat, sealing packing is arranged in the packing groove, and a packing end cover is connected with the valve cover to compress the sealing packing in the packing groove.

Preferably, a spanner groove is arranged at one end of the cylindrical mounting seat far away from the flow guiding mechanism.

Preferably, the diversion mechanism comprises a nozzle sleeve, a check valve and an inner pipe; the inner pipe is divided into a left small-diameter pipe section and a right large-diameter pipe section, wherein an inlet of the left small-diameter pipe section is connected with an inlet of the oil nozzle sleeve in a matched manner; the single flow valve is integrally arranged in the oil nozzle sleeve, and an inlet of the single flow valve is connected with a right port of the right large-diameter pipe section in a matched mode.

Preferably, the check valve comprises a valve seat, a spring and a valve ball; the left port of the valve seat is in threaded connection with the outlet of the right large-diameter pipe section of the inner pipe; the valve ball and the spring are both positioned in the inner tube, the right end of the spring is connected with the left end of the valve seat, and the left end of the spring is connected with the valve ball.

The utility model comprises a diversion mechanism and an assembly mechanism, wherein the diversion mechanism is connected to a wellhead device, the diversion mechanism guides produced liquid to the assembly mechanism from the wellhead device, the assembly mechanism comprises a cylindrical mounting seat connected with the diversion mechanism, a drainage hole is formed in the cylindrical mounting seat along the axial direction, one end of the drainage hole, which is far away from the diversion mechanism, is provided with a temperature sensor mounting hole, the outer peripheral surface of the cylindrical mounting seat is respectively provided with a vent valve mounting hole and a temperature and pressure change mounting hole, the vent valve mounting hole and the temperature and pressure change mounting hole are communicated with the drainage hole through a communication hole in the cylindrical mounting seat, and a control valve controls the connection or disconnection of the communication hole; the cylindrical mounting seat is provided with the holes to replace pipeline connection, so that the integrated level is high, and the mounting space is saved; the assembly adopts threaded connection, does not need fire operation, and has small potential safety hazard; the produced liquid fills the communication hole and is fully contacted with the vent valve, the warm-pressure transmitter and the temperature sensor respectively, so that the accuracy of the detection data is good; when the temperature and pressure transmitter and the temperature sensor need to be detected and replaced, the control valve is closed, the produced liquid is released and emptied through the emptying valve, and the temperature and pressure transmitter and the temperature sensor can be detached, so that the temperature and pressure transmitter and the temperature sensor are convenient to detach and do not influence wellhead flow and oil well production.

Drawings

FIG. 1 is a schematic view of a construction of the present utility model;

fig. 2 is a schematic view of fig. 1 taken along A-A.

In the figure: 1. flow directing mechanism, 11, oil nozzle sleeve, 12, uniflow valve, 121, valve seat, 122, spring, 123, valve ball, 13, inner tube, 2, assembly mechanism, 21, cylindrical mounting seat, 211, drainage bore, 212, blow down valve mounting bore, 213, temperature and pressure change mounting bore, 214, communication bore, 215, valve spool, 216, shaft boss, 217, spanner groove, 218, temperature sensor mounting bore, 22, control valve, 221, valve cover, 222, valve stem, 223, hand wheel, 224, internal thread, 225, external thread, 226, packing groove, 227, sealing packing, 228, packing end cap, 3, wellhead device.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1, a connection device of a temperature and pressure transmitter comprises a diversion mechanism 1 and an assembly mechanism 2, wherein the diversion mechanism 1 is connected to a wellhead device 3.

In the utility model, the diversion mechanism 1 comprises a choke sleeve 11, a check valve 12 and an inner pipe 13, wherein the choke sleeve 11 is connected to the wellhead 3, and the inner pipe 13 is integrally positioned inside the choke sleeve 11. The inner cavity of the inner pipe 13 is divided into a left small-diameter pipe section and a right large-diameter pipe section, and the inlet of the left small-diameter pipe section is connected with the inlet of the oil nozzle sleeve 11 in a matched manner; the uniflow valve 12 is integrally positioned inside the nozzle sleeve 11, and an inlet of the uniflow valve 12 is connected with a right port of the right large-diameter pipe section in a matched manner.

The check valve 12 is used for preventing the backflow of produced liquid, and comprises a valve seat 121, a spring 122 and a valve ball 123, wherein the left end opening of the valve seat 121 is in threaded connection with the outlet of the right large-diameter pipe section of the inner pipe 13, the valve ball 123 and the spring 122 are both positioned in the inner pipe 13, the right end of the spring 122 is connected with the left end of the valve seat 121, and the left end of the spring 122 is connected with the valve ball 123.

When the valve ball 123 is used, the valve ball 123 is placed at the inlet of the inner pipe 13, the spring 122 is placed immediately, the valve seat 121 is matched with the inner pipe 13 through threaded connection, the valve ball 123 is propped against the inlet through the spring 122, after the valve seat 121 is tightened, the device is placed in the glib sleeve 11, and the valve seat 121 is matched with the glib sleeve 11 through threaded connection. When the produced liquid enters from the inlet of the nozzle holder 11, the valve ball 123 is pushed open, the produced liquid enters the inner pipe 13 and flows out through the inner cavity of the valve seat 121 to enter the inner cavity of the nozzle holder 11.

The produced liquid is led to the assembly mechanism 2 by utilizing the inner pipe 13, so that the produced liquid is fully contacted with a temperature transmitter and a pressure transmitter which are connected to the assembly mechanism 2, and the detection accuracy is improved.

In the present utility model, the assembly mechanism 2 includes a cylindrical mount 21 and a control valve 22. As shown in fig. 1 and 2, one end of a cylindrical mounting seat 21 is connected to a nipple sleeve 11 of a diversion mechanism 1 by threads, a diversion hole 211 is formed in the cylindrical mounting seat 21 along the axial direction, a temperature sensor mounting hole 218 is formed in one end, far away from the diversion mechanism 1, of the diversion hole 211, a vent valve mounting hole 212 and a temperature and pressure change mounting hole 213 are formed in the outer peripheral surface of the cylindrical mounting seat 21 respectively, and the vent valve mounting hole 212 and the temperature and pressure change mounting hole 213 are communicated with the diversion hole 211 through a communication hole 214 in the cylindrical mounting seat 21. The produced liquid guided from the inner tube 13 to the fitting mechanism 2 fills the relief valve mounting hole 212 and the temperature and pressure change mounting hole 213 through the drainage hole 211, the communication hole 214.

In order to facilitate the threaded connection of the cylindrical mounting seat 21 to the guiding mechanism 1, as shown in fig. 1, a wrench slot 217 is provided at an end of the cylindrical mounting seat 21 remote from the guiding mechanism 1.

The on or off of the communication hole 214 is controlled by the control valve 22. As shown in fig. 2, the control valve 22 comprises a valve cover 221, a valve rod 222 and a hand wheel 223, wherein a valve groove 215 is radially arranged on the cylindrical mounting seat 21, the valve groove 215 is communicated with the communication hole 214, the valve cover 221 is sealed on the valve groove 215, the working end of the valve rod 222 penetrates through the valve cover 221 to extend into the valve groove 215 and is far away from or seals the communication hole 214, and the hand wheel 223 is arranged on the operation end of the hand valve rod 222; the valve cap 221 is provided with an internal thread 224, and the valve stem 222 corresponding to the internal thread 224 is provided with an external thread 225, and the internal thread 224 is screwed with the external thread 225. The valve rod 222 is driven to rotate by rotating the hand wheel 223, and the valve rod 222 is far away from or seals the communication hole 214 under the action of the axial force of the threads, so that the communication hole 214 is controlled to be opened or closed.

In this embodiment, the working end of the valve rod 222 is conical, and the valve rod 222 realizes contact and separation between the conical surface and the communication hole 214 through axial action, so as to control on and off of the communication hole 214.

Example 2

Unlike embodiment 1, in order to enhance the cross-sectional strength of the cylindrical mounting seat 21, a fitting plane is provided for the vent valve mounting hole 212, the temperature and pressure variation mounting hole 213, and the control valve 22, and as shown in fig. 1 and 2, a pillow block 216 having an elliptical cross section is provided on the cylindrical mounting seat 21.

Example 3

Unlike embodiment 1, in order to improve the sealability of the control valve 22, as shown in fig. 2, a packing groove 226 is provided at an end of the valve cover 221 remote from the cylindrical mounting seat 21, a packing 227 is provided in the packing groove 226, and a packing end cap 228 is connected to the valve cover 221 to press the packing 227 into the packing groove 226.

When the utility model is used, the diversion mechanism 1 is connected to the wellhead device 3 through the oil nozzle sleeve 11, and when the assembly mechanism 2 is not needed, a plug can be used for plugging the outlet on the right side; when a warm-pressure transmitter needs to be installed, a plug is removed, an assembly mechanism 2 is connected to the right side outlet of the oil nozzle sleeve 11 through a cylindrical mounting seat 21, a vent valve, a warm-pressure transmitter and a warm sensor are correspondingly installed on a vent valve installation hole 212, a warm-pressure change installation hole 213 and a warm sensor installation hole 218, a control valve 22 is opened, so that produced liquid fills a communication hole 214 from a drainage hole 211 and fully contacts the warm-pressure transmitter, the warm-pressure transmitter detects the pressure of the produced liquid, and the warm sensor detects the temperature of the produced liquid under the heat transfer action of the cylindrical mounting seat 21 and transmits the temperature to the warm-pressure transmitter through a data line for display; when the temperature and pressure transmitter needs to be verified and replaced, the control valve 22 is closed, the emptying valve is opened, the produced liquid in the drainage hole 211 and the communication hole 214 is released and emptied, and the temperature and pressure transmitter can be detached without affecting wellhead flow and oil well production.

In addition, when the temperature and pressure transmitter needs to be calibrated, the calibrated standard temperature and pressure transmitter can be installed at the position of the vent valve installation hole 212 instead of the vent valve, and the on-line calibration of the temperature and pressure transmitter is realized by means of the reading difference between the temperature and pressure transmitter to be calibrated and the standard temperature and pressure transmitter.

Although all of the above embodiments use fig. 1-2, it will be apparent to those skilled in the art that separate drawings are not provided to illustrate the embodiments, so long as the missing components or structural features are removed from the drawings. As will be clear to a person skilled in the art. Of course, the more components of the embodiment are just the optimal embodiment, the fewer components of the embodiment are basic embodiments, but the basic object of the utility model can be achieved, so all the modified embodiments are within the protection scope of the utility model.

In this application, all parts which are not discussed are known in the art, and the connection manner of all parts in this application is not described in detail. Such as welding, threaded connections, etc.

In the present utility model, the term "plurality" means two or more, unless explicitly defined 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 connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. 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.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, 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 present utility model. In this specification, schematic representations of the above terms do not necessarily 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.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a warm-pressing changer connecting device, its characterized in that, includes guiding mechanism and assembly devices, guiding mechanism connects on wellhead assembly, assembly devices includes cylindricality mount pad and control valve, the one end of cylindricality mount pad is connected with guiding mechanism, opens along the axial on the cylindricality mount pad has the drainage hole, and the one end that the drainage hole kept away from guiding mechanism is equipped with the temperature sensor mounting hole, opens respectively at cylindricality mount pad outer peripheral face has atmospheric valve mounting hole and temperature and pressure change mounting hole, and atmospheric valve mounting hole, temperature and pressure change mounting hole are through the intercommunicating pore and the drainage hole intercommunication in the cylindricality mount pad, the on or off of control valve control intercommunicating pore.

2. The connection device of a warm-pressure transmitter according to claim 1, wherein the control valve comprises a valve cover, a valve rod and a hand wheel, a valve groove is radially formed in the cylindrical mounting seat and is communicated with the communication hole, the valve cover is sealed on the valve groove, the working end of the valve rod penetrates through the valve cover to extend into the valve groove, the working end of the valve rod is plugged or far away from the communication hole, and the hand wheel is arranged on the operating end of the hand valve rod; the valve cover is provided with an internal thread, the valve rod corresponding to the internal thread is provided with an external thread, and the internal thread is screwed with the external thread.

3. The connection device of a warm-pressing transmitter according to claim 2, wherein the working end of the valve rod is conical, and the valve rod realizes contact and separation of the conical surface and the communication hole through axial action.

4. The connection device of claim 2, wherein a packing groove is formed in an end of the valve cover away from the cylindrical mounting base, a sealing packing is arranged in the packing groove, and a packing end cover is connected with the valve cover to compress the sealing packing in the packing groove.

5. The connection device of claim 1, wherein a wrench slot is provided at an end of the cylindrical mounting base remote from the flow guiding mechanism.

6. The warm-pressing transmitter connection device according to any one of claims 1 to 5, wherein the diversion mechanism comprises a nipple, a check valve and an inner tube; the inner pipe is divided into a left small-diameter pipe section and a right large-diameter pipe section, wherein an inlet of the left small-diameter pipe section is connected with an inlet of the oil nozzle sleeve in a matched manner; the single flow valve is integrally arranged in the oil nozzle sleeve, and an inlet of the single flow valve is connected with a right port of the right large-diameter pipe section in a matched mode.

7. The warm-blooded transmitter coupling device of claim 6, wherein said single flow valve comprises a valve seat, a spring, a valve ball; the left port of the valve seat is in threaded connection with the outlet of the right large-diameter pipe section of the inner pipe; the valve ball and the spring are both positioned in the inner tube, the right end of the spring is connected with the left end of the valve seat, and the left end of the spring is connected with the valve ball.