CN217582067U - Self-cleaning formula throttle accuse pressure system - Google Patents

Abstract

The utility model discloses a self-cleaning formula throttle accuse pressure system relates to oil and gas engineering ground equipment manufacturing technical field, solves the potential risk problem of throttle accuse pressure system channel jam that uses in the operation of current oil and gas engineering, including first five-way, tee bend and PLC controller, be equipped with pressure detection mechanism on the first five-way, be equipped with the choke manifold between first five-way and the tee bend, the choke manifold includes the cross-way that is linked together with first five-way and the second five-way that is connected with the tee bend, and parallel connection is equipped with two manual-automatic body throttle passageways and a through passageway between cross-way and the second five-way, and the input and the pressure detection mechanism electricity of PLC controller are connected, and the cross-way is provided with the filter with the connecting channel entry of manual-automatic body throttle passageway; the problem that the throttling pressure control channel is blocked by sundries is solved, the available time of a throttling pressure control system is prolonged, the safety of drilling and production operations of an oil-gas well is enhanced, and the operation risk caused by channel blockage is reduced.

Description

Self-cleaning formula throttle accuse pressure system

Technical Field

The utility model relates to a petroleum and natural gas engineering ground equipment makes technical field, and more specifically relates to a self-cleaning formula throttle accuse pressure system technical field.

Background

At present, in the flow of the throttling and pressure controlling system (for example, the flow of the 3-channel throttling and pressure controlling system shown in fig. 1, and the flow of the 4-channel throttling and pressure controlling system applied in the oil and gas engineering operation at present), the filter screens (both the 18 th and the 22 th positions in fig. 1) are installed behind the flat valves and the throttle valves, which can cause impurities (such as rubber core fragments, underground rock fragments carried to the ground by the drilling fluid, fragments of underground tool sealing elements and the like) larger than the drift diameter of the throttle valves in the drilling fluid to block the filter screens and valve elements in front of the filter screens. This approach has the following major problems: because the drift diameter of the valve is usually larger than the aperture of the filter screen, the impurities larger than the drift diameter of the valve can directly block the valve, so that the filter screen does not work, and the impurities between the drift diameter of the valve and the aperture of the filter screen can form blockage between the filter screen and the nearest valve, which is accumulated day by day and month, and finally blocks the channel. The channel blockage caused by any method can only be cleaned by disassembling the flow, so that the workload of service personnel is increased, and all channels can be blocked successively under the condition that a large amount of sundries appear, so that the throttling control system loses the throttling control function to cause well control accidents on a drilling site.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the potential risk problem of throttle accuse pressure system channel jam of using in the operation of current oil and gas engineering, the utility model provides a self-cleaning formula throttle accuse pressure system can ensure that large-size debris do not get into throttle accuse pressure passageway, exists under the condition of debris in the through passageway, can realize the self-cleaning formula of system and clear up, is applicable to the throttle accuse pressure system that uses in the oil and gas engineering and carries out self-cleaning formula clearance.

The utility model adopts the technical scheme as follows: a self-cleaning throttling pressure control system comprises a first five-way, a three-way and a PLC (programmable logic controller), wherein a pressure detection mechanism is arranged on the first five-way, a throttling manifold is arranged between the first five-way and the three-way, the throttling manifold comprises a four-way communicated with the first five-way and a second five-way connected with the three-way, two manual-automatic integrated throttling channels and a through channel are arranged between the four-way and the second five-way in parallel, the input end of the PLC is electrically connected with the pressure detection mechanism, and a filter is arranged in the inlet of a connecting channel of the four-way and the manual-automatic integrated throttling channels; the sundries smaller than the aperture of the filter can be allowed to pass through, the reasonable aperture design can ensure that the sundries can also pass through the valve and the valve on the manual-automatic integrated throttling channel, and if the sundries larger than the aperture of the filter exist, the sundries cannot enter the channel where the third flat plate valve and the fourth flat plate valve are located, but are gathered in the four-way valve.

The output end of the PLC controller is respectively and electrically connected with the first throttling valve and the second throttling valve; by switching on and off of the third flat plate valve and the fourth flat plate valve, impurities fall to the lower portion of the cross joint from the filter under the action of gravity, and self-cleaning of the system is achieved.

And when the sundries are too much and the space in the four-way valve cannot contain too much sundries, the sixth flat valve is opened to directly wash away the sundries, so that the self-cleaning of the system is realized.

The pressure detection mechanism comprises a flange, a pressure gauge, a first pressure sensor, a second pressure sensor and a third pressure sensor are arranged on the flange, the input ends of the first pressure sensor, the second pressure sensor, the third pressure sensor and the PLC are electrically connected, a first flat valve is arranged between the flange and the first five-way valve, the blockage degree of impurities in the four-way valve is known through the pressure gauge, and the running state of the system is known more accurately.

A flow detection channel and a straight channel are arranged between the tee joint and the second five-way in parallel, an eleventh flat valve is arranged on the straight channel, the flow detection channel comprises a flowmeter, a tenth flat valve is arranged between the flowmeter and the second five-way, a second flat valve is arranged between the flowmeter and the tee joint, when the discharge flow needs to be detected, the eleventh flat valve is closed, the tenth flat valve and the second flat valve are opened, flow detection is carried out, and detection is more convenient.

The filter is arranged on the inner wall of the four-way valve which leads to the third flat plate valve and the inner wall of the four-way valve which leads to the fourth flat plate valve; the filter can be attached to the inner wall of the pipeline and can play a role in filtering.

The filter comprises a cylindrical filter body, through holes are distributed on the filter body, and a channel clamp spring is arranged on the periphery of the filter body; this filter body is through anti-soil processing, and the impurity that its through-hole passes through needs can be through first filter flange, second filter flange.

The filter body is of an arch structure, so that when impurities are blocked, the blocking of convection liquid is reduced, and the filtering area is larger.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a filter is installed at the cross and is led to the passageway entry inner wall of third flat-plate valve and fourth flat-plate valve, has utilized the drilling fluid pressure force of gravity and adsorption affinity and system front end, concentrates on the cross inside with the bold debris in the drilling fluid, judges when the system and has under the condition of jam, and automatic or manual opening direct passageway is with plug discharge system to solve the problem that debris blockked up the throttle accuse and press the passageway, avoided service personnel's tedious work. The available time of the throttling and pressure controlling system is increased, the safety of drilling and production operations of oil and gas wells is enhanced, and the operation risk caused by channel blockage is reduced.

Drawings

The invention will be described by way of example and with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the filter structure of the present invention;

labeled in the figure as: 1-a first five-way valve, 2-a first flat plate valve, 3-a flange, 4-a pressure gauge, 5-a first pressure sensor, 6-a second pressure sensor, 7-a third pressure sensor, 8-a tee, 9-a second flat plate valve, 10-a four-way valve, 11-a third flat plate valve, 12-a fourth flat plate valve, 13-a first throttle valve, 14-a second throttle valve, 15-a fifth flat plate valve, 16-a sixth flat plate valve, 17-a seventh flat plate valve, 18-a first filter flange, 19-an eighth flat plate valve, 20-a second five-way valve, 21-a ninth flat plate valve, 22-a second filter flange, 23-a tenth flat plate valve, 24-an eleventh flat plate valve, 25-a flowmeter, 26-a filter, 261-a filter body, 262-a channel clamp spring, 263-through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-2, the embodiment provides a self-cleaning throttling pressure control system, which includes a first five-way 1, a three-way 8 and a PLC controller, where the first five-way 1 is provided with a pressure detection mechanism, a throttle manifold is arranged between the first five-way 1 and the three-way 8, the throttle manifold includes a four-way 10 communicated with the first five-way 1 and a second five-way 20 connected with the three-way 8, two manual-automatic throttling channels and a straight-through channel are arranged in parallel between the four-way 10 and the second five-way 20, an input end of the PLC controller is electrically connected with the pressure detection mechanism, and a filter 26 is arranged in an inlet of a connecting channel between the four-way 10 and the manual-automatic throttling channel; the sundries smaller than the aperture of the filter 26 can pass through, the reasonable aperture design can ensure that the sundries can also pass through the valve and the valve part on the manual-automatic integrated throttling channel, and if the sundries larger than the aperture of the filter 26 exist, the sundries cannot enter the channel where the third flat plate valve 11 and the fourth flat plate valve 12 are located, but are gathered in the four-way valve 10.

Example 2

On the basis of embodiment 1, a third flat plate valve 11, a second throttle valve 14, a fifth flat plate valve 15, a first filter flange 18 and an eighth flat plate valve 19 are sequentially connected in series to one of the two manual-automatic integrated throttling passages, and a fourth flat plate valve 12, a first throttle valve 13, a seventh flat plate valve 17, a second filter flange 22 and a ninth flat plate valve 21 are sequentially connected in series to the other manual-automatic integrated throttling passage, wherein the output end of the PLC controller is electrically connected with the first throttle valve 13 and the second throttle valve 14 respectively; by switching the opening and closing of the third flat plate valve 11 and the fourth flat plate valve 12, impurities can fall to the lower part of the cross joint 10 from the filter 26 under the action of gravity, and the self-cleaning of the system is realized.

Example 3

On the basis of embodiment 1, the through channel is provided with a sixth flat valve 16, when the sundries are too much and the space in the four-way valve 10 cannot contain too much sundries, the sixth flat valve 16 is opened to directly wash away the sundries, and the self-cleaning of the system is realized.

Example 4

On the basis of embodiment 1, pressure measurement mechanism includes flange 3, be equipped with manometer 4, first pressure sensor 5, second pressure sensor 6, third pressure sensor 7 on the flange 3, the input electricity of first pressure sensor 5, second pressure sensor 6, third pressure sensor 7 and PLC controller is connected, be equipped with first flat-plate valve 2 between flange 3 and the first five-way 1, know the jam degree of four-way 10 interior impurity through manometer 4, the running state of system is known to more accurate.

Example 5

On the basis of embodiment 1, a flow detection channel and a straight channel are arranged between the tee joint 8 and the second five-way joint 20 in parallel, an eleventh flat valve 24 is arranged on the straight channel, the flow detection channel comprises a flow meter 25, a tenth flat valve 23 is arranged between the flow meter 25 and the second five-way joint 20, a second flat valve 9 is arranged between the flow meter 25 and the tee joint 8, and when the discharge flow needs to be detected, the eleventh flat valve 24 is closed, and the tenth flat valve 23 and the second flat valve 9 are opened to detect the flow, so that the detection is more convenient.

Example 6

On the basis of the embodiment 2, the filter 26 is arranged on the inner wall of the four-way valve 10 leading to the third flat plate valve 11 and the four-way valve 10 leading to the fourth flat plate valve 12; the filter 26 is attached to the inner wall of the pipe and is capable of filtering.

Example 7

On the basis of embodiment 1, the filter 26 includes a cylindrical filter body 261, through holes 263 are distributed on the filter body 261, and a channel clamp spring 262 is arranged on the periphery of the filter body 261; the filter body 261 is subjected to anti-fouling treatment, and impurities passing through the through holes 263 can pass through the first filter flange 18 and the second filter flange 22.

Example 8

In example 7, the filter body 261 has an arch structure, so that when impurities are blocked, the blocking of convection liquid is reduced, and the filtering area is larger.

The utility model discloses a theory of operation does: the utility model discloses a dual mode realizes the self-cleaning of throttle accuse pressure system. Firstly, when impurities enter the throttling pressure control system, the impurities approach the self-cleaning filter 26 due to the attraction, and at the moment, only the throttling pressure control channel needs to be switched, so that the impurities fall to the lower part of the cross joint 10 from the self-cleaning filter 26 under the action of gravity, thereby realizing the self-cleaning of the system; secondly, when the space in the cross joint 10 can not contain too many sundries, the pressure gauge 4 arranged on the flange 3, the pressure on the first sensor, the second sensor and the third sensor and the pressure value on the pressure gauge arranged on the first filter flange 18 (the pressure gauge on the second filter flange 22 when the other channel is used for throttling and controlling pressure) have larger difference, and the blockage in the cross joint 10 is prompted; in this case, by manually or automatically opening the sixth flat valve 16 on the through passage, the impurities can be discharged from the four-way valve 10 through the sixth flat valve 16, the second five-way valve 20, the eleventh flat valve 24 and the three-way valve 8 under the pushing of the pressure in the system; when the foreign materials are discharged, the sixth flat valve 16 is closed, thereby performing self-cleaning of the system.

Claims (8)

1. The utility model provides a self-cleaning formula throttle accuse pressure system, includes first five-way (1), tee bend (8) and PLC controller, be equipped with pressure detection mechanism on first five-way (1), be equipped with the choke manifold between first five-way (1) and tee bend (8), the choke manifold includes cross (10) that are linked together with first five-way (1) and second five-way (20) that are connected with tee bend (8), it is equipped with two manual-automatic throttle passageways and a through passage to connect in parallel between cross (10) and second five-way (20), the input and the pressure detection mechanism electricity of PLC controller are connected, its characterized in that, be provided with filter (26) in cross (10) and the connecting channel entry of manual-automatic throttle passageway.

2. A self-cleaning throttling pressure control system according to claim 1, wherein a third flat plate valve (11), a second throttling valve (14), a fifth flat plate valve (15), a first filter flange (18) and an eighth flat plate valve (19) are connected in series on one manual-automatic throttling channel, a fourth flat plate valve (12), a first throttling valve (13), a seventh flat plate valve (17), a second filter flange (22) and a ninth flat plate valve (21) are connected in series on the other manual-automatic throttling channel, and the output end of the PLC controller is electrically connected with the first throttling valve (13) and the second throttling valve (14) respectively.

3. A self-cleaning, throttle and pressure control system according to claim 1, characterized in that a sixth plate valve (16) is provided in said through passage.

4. A self-cleaning type throttling pressure control system according to claim 1, wherein the pressure detection mechanism comprises a flange (3), a pressure gauge (4), a first pressure sensor (5), a second pressure sensor (6) and a third pressure sensor (7) are arranged on the flange (3), the first pressure sensor (5), the second pressure sensor (6) and the third pressure sensor (7) are electrically connected with the input end of the PLC, and a first flat plate valve (2) is arranged between the flange (3) and the first five-way valve (1).

5. A self-cleaning throttling and pressure-controlling system according to claim 1, wherein a flow detection channel and a straight channel are arranged between the three-way valve (8) and the second five-way valve (20) in parallel, an eleventh flat valve (24) is arranged on the straight channel, the flow detection channel comprises a flow meter (25), a tenth flat valve (23) is arranged between the flow meter (25) and the second five-way valve (20), and a second flat valve (9) is arranged between the flow meter (25) and the three-way valve (8).

6. A self-cleaning throttle pressure control system according to claim 2, characterized in that the filter (26) is mounted on the inner wall of the cross (10) leading to the third plate valve (11) and the cross (10) leading to the fourth plate valve (12).

7. A self-cleaning throttling and pressure-controlling system according to claim 1, wherein the filter (26) comprises a cylindrical filter body (261), through holes (263) are distributed on the filter body (261), and a channel snap spring (262) is arranged on the periphery of the filter body (261).

8. A self-cleaning throttle pressure control system as claimed in claim 7, characterized in that the filter body (261) is of an arch structure.

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