CN212867505U - Manual-automatic integrated throttling and pressure controlling system - Google Patents
Manual-automatic integrated throttling and pressure controlling system Download PDFInfo
- Publication number
- CN212867505U CN212867505U CN202021135749.4U CN202021135749U CN212867505U CN 212867505 U CN212867505 U CN 212867505U CN 202021135749 U CN202021135749 U CN 202021135749U CN 212867505 U CN212867505 U CN 212867505U
- Authority
- CN
- China
- Prior art keywords
- valve
- manual
- way
- pressure
- automatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model discloses a manual-automatic integrated throttling pressure control system, which relates to the technical field of well control of oil and gas wells, and comprises an inlet five-way valve, an outlet five-way valve and a PLC controller, wherein the inlet five-way valve is provided with a pressure detection mechanism, a throttle manifold is arranged between the inlet five-way valve and the outlet five-way valve, the throttle manifold comprises a five-way valve A and a five-way valve B, two manual-automatic integrated throttling channels and a straight-through channel are arranged between the five-way valve A and the five-way valve B in parallel, each manual-automatic integrated throttling channel comprises a manual-automatic integrated throttling valve which is connected in series in sequence, the automatic flat valve, the filter tee joint, the manual flat valve B are arranged between the manual-automatic integrated throttle valve and the five-way valve A and between the filter tee joint and the five-way valve B, the input end of the PLC is electrically connected with the pressure detection mechanism, the output end of the PLC is electrically connected with the manual-automatic integrated throttle valve, and the manual flat valve D is also arranged between the outlet five-way valve and the five-way valve B; the utility model has the advantages of simple structure and no need of specially setting a manual throttling channel.
Description
Technical Field
The utility model relates to an oil gas well accuse technical field, more specifically relate to a manual-automatic throttle accuse pressure system for the pressure control of oil gas well.
Background
At present, in the process of drilling, testing and exploitation of oil and gas wells, when the bottom hole pressure is smaller than the stratum pressure, stratum fluid enters a shaft, so that the bottom hole pressure is reduced, the underground situation is possibly complicated, and even drilling accidents are possibly caused.
The existing throttle pressure control modes mainly comprise manual control, hydraulic control and electric control.
The current manual control mainly has the following defects: the operators who operate the throttle valve often control the opening of the throttle valve badly, which causes the pressure at the well mouth to be too low or too high, which causes the pressure system in the shaft to be more complex and is not beneficial to safe operation and reservoir protection; the manual operation has high labor intensity, is easy to cause misoperation due to fatigue, and increases the well control risk; the response time of manual operation is slow, and once an emergency occurs, the emergency can not be controlled in time according to requirements; manually operated pressure control accuracy may not meet special process requirements, such as underbalanced or near-balanced drilling operations that require fine pressure control of the wellbore.
The current hydraulic control mainly has the following defects: the hydraulic throttle control can realize automatic control, and although the labor intensity of personnel is reduced to a certain extent, the hydraulic control cannot be improved on the original throttle manifold, and the throttle manifold must be redesigned and manufactured, so that a large amount of waste is caused; at present, a domestic hydraulic control throttling system is matched with a domestic throttling valve for a general throttling manifold, the response speed is low, the pressure control fluctuation is large, and the pressure control precision cannot meet the technical requirement of fine pressure control operation; the foreign hydraulic control throttle valve and the control system are adopted, the cost is high, each valve element is as high as million RMB, and the popularization and the application are not facilitated; the existing hydraulic control automatic control choke manifold only has near-to-ground manual control and remote control through a numerical control room, and cannot realize automatic control in the near-to-ground, so that once communication between the automatic choke manifold and a remote numerical control room fails (such as a field communication cable is damaged and a communication network is interfered), data exchange cannot be carried out, automatic control cannot be realized, and wellhead pressure control cannot meet well control requirements of shaft operation; the existing hydraulic throttle manifold needs to be provided with a numerical control room for realizing automatic control, and the two rooms can not be used separately and are not suitable for offshore platform drilling limited by construction site space.
The existing electric control can solve the problems of manual control and hydraulic control, but the existing electric control has the following defects because the existing electric control is mainly realized by additionally arranging a worm gear and a speed reducer between a motor and a valve rod of a throttle valve, and if the electric control is designed to be purely automatic control, a channel of an emergency manual control throttle valve needs to be additionally designed; if the automatic control and manual control are integrated, the throttle valve is changed from full opening to full closing from original several circles to dozens of circles due to the presence of the worm gear and the reducer, so that when the automatic control fails, the throttle valve is timely opened and closed by the manual control, pressure control failure is caused, and even drilling accidents are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problem that current electric control's throttle accuse pressure mode exists, the utility model provides a manual-automatic throttle accuse pressure system.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
a manual-automatic integrated throttling and pressure controlling system, which comprises an inlet five-way, an outlet five-way and a PLC controller, the inlet five-way is provided with a pressure detection mechanism, a throttle manifold is arranged between the inlet five-way and the outlet five-way, the throttle manifold comprises a five-way valve A communicated with the inlet five-way valve and a five-way valve B connected with the outlet five-way valve, two manual-automatic integrated throttling channels and a straight-through channel are arranged between the five-way A and the five-way B in parallel, each manual-automatic integrated throttling channel comprises a manual-automatic integrated throttling valve, an automatic flat valve and a filter tee joint which are sequentially connected in series, manual flat valves B are arranged between the manual-automatic integrated throttle valve and the five-way valve A and between the filter tee joint and the five-way valve B, the input and the pressure detection mechanism electricity of PLC controller are connected, the output and the manual-automatic throttle valve electricity of PLC controller are connected, still be equipped with manual wafer valve D between export five-way and the five-way B.
Further, the manual-automatic throttle valve comprises a valve body, a hollow servo motor and a valve rod position detection mechanism, wherein a screw rod-shaped valve rod is arranged on the valve body, an annular nut is arranged in an output shaft of the hollow servo motor, a buckle matched with a thread of the valve rod is arranged on the inner side of the annular nut, the annular nut is sleeved on the outer side of the valve rod, a hand wheel is fixedly sleeved on the valve rod, the hollow servo motor is positioned between the hand wheel and the valve body, a driver of the hollow servo motor is electrically connected with an output end of a PLC (programmable logic controller), the valve rod position detection mechanism is electrically connected with an input end of the PLC, specifically, the PLC receives a pressure signal detected by the pressure detection mechanism in real time, when the detected pressure Pci is smaller than a set pressure Pct-control precision delta Pc, the PLC sends an instruction to the driver, and the driver controls, the hollow servo motor drives the valve rod to descend, and the valve position of the throttle valve is reduced; when Pci is larger than the set pressure Pct + the pressure control precision delta Pc, the PLC sends an instruction to the driver, the driver controls the hollow servo motor to rotate reversely, the hollow servo motor drives the valve rod to ascend, and the valve position of the throttle valve is increased; when the motor and the PLC fail, the hand wheel is manually rotated, so that the valve position of the throttle valve can be quickly adjusted; the PLC controller receives position signals detected by the valve rod detection mechanism in real time, and when the valve rod is detected to be in the initial position or the final position, the PLC controller sends an instruction to the driver, and the driver controls the hollow servo motor to stop rotating.
Further, the valve rod position detection mechanism comprises two position sensors arranged on one side of the valve rod, the two position sensors are arranged along the axial direction of the valve rod, and one of the position sensors is connected with the side face of the valve rod.
Further, pressure measurement mechanism includes pressure acquisition device, be equipped with a manometer and a plurality of pressure sensor on the pressure acquisition device, pressure sensor and PLC controller's input electricity is connected, be equipped with manual wafer valve A between pressure acquisition device and the import five-way.
Further, the through passage includes a hydraulically operated flat valve.
Further, still including establishing the flow detection passageway between five-way B and export five-way, the flow detection passageway includes the flowmeter, all be equipped with manual wafer valve C between flowmeter and the five-way B and between flowmeter and the export five-way.
The utility model has the advantages as follows:
1. the utility model has simple structure, when the throttle valve and the automatic flat valve of the manual-automatic throttling channel fail, the normally open flat valve in front of the throttle valve and behind the filter tee can be cut off to overhaul the recovery channel on site, thereby ensuring the on-site maintenance and normal recovery of the equipment after the equipment is far away from the base and ensuring the safety of on-site construction;
2. the PLC controller of the utility model can receive the well head pressure from the operation sites of drilling or testing, mining and transportation and the like in real time from the pressure detection mechanism, then control the manual-automatic integral throttle valve and the automatic flat valve to strictly execute corresponding operations, maintain the well head pressure in a set value range, have higher pressure control precision and meet the requirement of accurate automatic pressure control;
3. the utility model can realize the near-ground manual control throttle valve, the near-ground automatic control throttle valve and the remote automatic control throttle valve, the near-ground control and the remote control of the throttle valve can be separated, when the remote control fails, the control of the throttle valve can be realized through the near-ground control;
4. the utility model adopts the hot backup function, judges whether the channel is normal or not and is blocked or not in real time, if one manual-automatic integrated throttling channel is blocked, the alarm prompt is given, and the other hot backup channel is automatically switched, if two manual-automatic integrated throttling channels are blocked or fail, on one hand, the alarm prompt is given for maintenance, and on the other hand, the hydraulic flat valve of the direct channel is automatically opened to implement emergency pressure relief;
5. the manual-automatic throttling channel of the utility model adopts the manual-automatic throttling valve to control pressure, the automatic control and the manual control are combined, which is equivalent to two automatic and two manual throttling channels, the flow is more simplified, on one hand, a manual throttling channel is not needed to be specially arranged, the manifold flow is more compact, the volume is smaller, on the other hand, the defects of inaccuracy, fatigue and the like existing in the former pure manual control are avoided;
6. the manual-automatic throttling channel of the utility model adopts the manual-automatic throttling valve to control pressure, when the automatic control part of the throttling valve fails, the manual control part can be used for adjusting, the number of switching turns of the throttling valve is not changed, the automatic or manual control under emergency is convenient, and the safety under emergency is enhanced;
7. the utility model discloses choke valve and the liquid accuse device of special foreign import relatively, the price is lower to can be through the lead screw of the manual choke valve that adds the existing, just can realize the automatic control of choke valve, the cost is effectively reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the manual-automatic throttle valve of the present invention;
reference numerals: 1-inlet five-way, 2-manual flat valve A, 3-pressure acquisition device, 4-pressure gauge, 5-pressure sensor, 6-five-way A, 7-manual flat valve B, 8-manual-automatic integrated throttle valve, 9-automatic flat valve, 10-filter three-way, 11-manual flat valve C, 12-five-way B, 13-manual flat valve D, 15-flowmeter, 16-outlet five-way, 17-valve body, 18-hollow servo motor, 19-valve rod, 20-hand wheel and 21-position sensor.
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 embodiments of the present invention, as 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 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 2, this embodiment provides a manual-automatic integrated throttling pressure control system, which includes an inlet five-way 1, an outlet five-way 16, and a PLC controller, where the inlet five-way 1 is provided with a pressure detection mechanism, a throttle manifold is provided between the inlet five-way 1 and the outlet five-way 16, the throttle manifold includes a five-way a6 communicated with the inlet five-way 1 and a five-way B12 connected with the outlet five-way 16, two manual-automatic integrated throttling channels and a straight-through channel are provided in parallel between the five-way a6 and the five-way B12, each manual-automatic integrated throttling channel includes a manual-automatic integrated throttling valve 8, an automatic flat valve 9, and a filter three-way 10, which are connected in series in sequence, and manual valves B7 are provided between the manual-automatic throttling valve 8 and the five-way a6 and between the filter three-way 10 and the five-way B12, an input end of the PLC controller is electrically connected to the pressure detection mechanism, and an output end of the PLC controller is electrically, and a manual flat valve D13 is also arranged between the outlet five-way 16 and the five-way B12.
Example 2
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 1, and specifically, the manual-automatic throttle valve 8 includes a valve body 17, a hollow servo motor 18 and a valve rod 19 position detection mechanism, the valve body 17 is provided with a rod-shaped valve rod 19, an output shaft of the hollow servo motor 18 is provided with a ring nut, an inner side of the ring nut is provided with a buckle matched with a thread of the valve rod 19, the ring nut is sleeved on an outer side of the valve rod 19, the valve rod 19 is fixedly sleeved with a hand wheel 20, the hollow servo motor 18 is located between the hand wheel 20 and the valve body 17, a driver of the hollow servo motor 18 is electrically connected with an output end of a PLC controller, the valve rod position detection mechanism is electrically connected with an input end of the PLC controller, specifically, the PLC controller receives a pressure signal detected by the pressure detection mechanism in real time, when a detected pressure Pci < set pressure Pct-pressure control accuracy Δ Pc, the PLC sends an instruction to the driver, the driver controls the hollow servo motor 18 to rotate in the positive direction, the hollow servo motor 18 drives the valve rod 19 to descend, and the valve position of the throttle valve is reduced; when Pci is larger than the set pressure Pct + the pressure control precision delta Pc, the PLC sends an instruction to the driver, the driver controls the hollow servo motor 18 to rotate reversely, the hollow servo motor 18 drives the valve rod 19 to ascend, and the valve position of the throttle valve is increased; when the motor and the PLC fail, the hand wheel 20 is manually rotated, so that the valve position of the throttle valve can be quickly adjusted; the PLC receives a position signal detected by the valve rod detection mechanism in real time, and when the valve rod 19 is detected to be in the initial or final position, the PLC sends an instruction to the driver, and the driver controls the hollow servo motor 18 to stop rotating.
Example 3
As shown in fig. 1 to 2, the present embodiment is further improved on the basis of embodiment 2, specifically, the valve rod position detecting mechanism includes two position sensors 21 disposed on one side of the valve rod 19, the two position sensors 21 are disposed along the axial direction of the valve rod 19, and one of the position sensors 21 is connected to a side surface of the valve rod 19.
Example 4
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 1, specifically, the pressure detection mechanism includes a pressure acquisition device 3, the pressure acquisition device 3 is provided with a pressure gauge 4 and a plurality of pressure sensors 5, the pressure sensors 5 are electrically connected to an input end of the PLC controller, and a manual flat valve a2 is provided between the pressure acquisition device 3 and the inlet five-way valve 1.
Example 5
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 1, and specifically, the through passage includes a hydraulic flat valve.
Example 6
As shown in fig. 1 to 2, this embodiment is further improved on the basis of embodiment 1, and specifically includes a flow rate detection channel provided between the five-way B12 and the outlet five-way 16, the flow rate detection channel includes a flow meter 15, and manual flat valves C11 are provided between the flow meter 15 and the five-way B12 and between the flow meter 15 and the outlet five-way 16.
Claims (6)
1. A manual-automatic integrated throttling pressure control system is characterized by comprising an inlet five-way (1), an outlet five-way (16) and a PLC (programmable logic controller), wherein a pressure detection mechanism is arranged on the inlet five-way (1), a throttling manifold is arranged between the inlet five-way (1) and the outlet five-way (16), the throttling manifold comprises a five-way A (6) communicated with the inlet five-way (1) and a five-way B (12) connected with the outlet five-way (16), two manual-automatic integrated throttling channels and a straight-through channel are arranged between the five-way A (6) and the five-way B (12) in parallel, each manual-automatic integrated throttling channel comprises a manual-automatic integrated throttling valve (8), an automatic flat valve (9) and a filter three-way (10) which are sequentially connected in series, a manual flat valve B (7) is arranged between the manual-automatic throttling valve (8) and the five-way A (6) and between the filter three-way (10) and the five-way B (12), the input and the pressure detection mechanism electricity of PLC controller are connected, the output and the manual-automatic body choke valve (8) electricity of PLC controller are connected, still be equipped with manual wafer valve D (13) between export five-way (16) and five-way B (12).
2. The manual-automatic throttling system is characterized in that the manual-automatic throttling valve (8) comprises a valve body (17), a hollow servo motor (18) and a valve rod position detection mechanism, a valve rod (19) in the shape of a screw rod is arranged on the valve body (17), a ring nut is arranged in an output shaft of the hollow servo motor (18), a buckle matched with the thread of the valve rod (19) is arranged on the inner side of the ring nut, the ring nut is sleeved on the outer side of the valve rod (19), a hand wheel (20) is fixedly sleeved on the valve rod (19), the hollow servo motor (18) is positioned between the hand wheel (20) and the valve body (17), a driver of the hollow servo motor (18) is electrically connected with an output end of a PLC (programmable logic controller), and the valve rod position detection mechanism is electrically connected with an input end of the PLC (17).
3. A manual-automatic integrated throttle control pressure system according to claim 2, characterized in that said valve stem position detecting means comprises two position sensors (21) arranged on one side of the valve stem (19), two position sensors (21) being arranged axially along the valve stem (19) and one of the position sensors (21) being connected to the side of the valve stem (19).
4. A manual-automatic integrated throttling pressure control system according to any one of claims 1-3, wherein the pressure detection mechanism comprises a pressure acquisition device (3), a pressure gauge (4) and a plurality of pressure sensors (5) are arranged on the pressure acquisition device (3), the pressure sensors (5) are electrically connected with the input end of the PLC controller, and a manual flat valve a (2) is arranged between the pressure acquisition device (3) and the inlet five-way valve (1).
5. A manual-automatic integrated throttle pressure control system according to any one of claims 1-3, characterized in that said through passage comprises a hydraulic plate valve.
6. A manual-automatic integrated throttling and pressure controlling system according to any one of claims 1 to 3, characterized by further comprising a flow detection channel arranged between the five-way valve B (12) and the outlet five-way valve (16), wherein the flow detection channel comprises a flow meter (15), and manual flat valves C (11) are arranged between the flow meter (15) and the five-way valve B (12) and between the flow meter (15) and the outlet five-way valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135749.4U CN212867505U (en) | 2020-06-18 | 2020-06-18 | Manual-automatic integrated throttling and pressure controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021135749.4U CN212867505U (en) | 2020-06-18 | 2020-06-18 | Manual-automatic integrated throttling and pressure controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212867505U true CN212867505U (en) | 2021-04-02 |
Family
ID=75212265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021135749.4U Active CN212867505U (en) | 2020-06-18 | 2020-06-18 | Manual-automatic integrated throttling and pressure controlling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212867505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734349A (en) * | 2020-06-18 | 2020-10-02 | 四川恒铭泽石油天然气工程有限公司 | Manual-automatic integrated throttling and pressure controlling system |
-
2020
- 2020-06-18 CN CN202021135749.4U patent/CN212867505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734349A (en) * | 2020-06-18 | 2020-10-02 | 四川恒铭泽石油天然气工程有限公司 | Manual-automatic integrated throttling and pressure controlling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109899011B (en) | Full-automatic electric throttle control system for oil and gas well | |
| CN109184638B (en) | Intelligent pressure wave code layered water injection system and process method for water injection well | |
| EP0466472B1 (en) | Annulus pressure responsive downhole testing tool | |
| CN111734349A (en) | Manual-automatic integrated throttling and pressure controlling system | |
| NO323963B1 (en) | Downhole inflator / discharge device | |
| CN212867505U (en) | Manual-automatic integrated throttling and pressure controlling system | |
| CN109488800B (en) | Monitoring type multifunctional water hammer air valve | |
| CN202280435U (en) | Electric control automatic throttling system for oil-gas well | |
| CN105467017B (en) | Online gc demarcation device for confecting standard oil | |
| CN209761369U (en) | Full-automatic electric throttling pressure control system for oil and gas well | |
| CN203603892U (en) | Semi-automatic ground control device of rotary guiding system and signal analysis system | |
| CN204782866U (en) | Well drilling choke manifold device is pressed in accuse | |
| CN203702123U (en) | Drilling system capable of controlling micro flow and pressure | |
| CN212985189U (en) | Gas bores stratum play water monitoring devices in advance | |
| CN205247226U (en) | Liquid -level monitoring device | |
| CN110231779A (en) | A kind of underwater complete electric production tree system analogy method | |
| CN108571613A (en) | A kind of electric ball valve | |
| CN201661272U (en) | Automatic blowout well killing control device | |
| CN111042760A (en) | Seal testing device and method for underground packer of intelligent measurement and control water injection well | |
| CN204463525U (en) | Gas-oil separation analogue simulation system | |
| CN113605864B (en) | Intelligent layered mining device suitable for offshore oil field | |
| CN202091167U (en) | Electrical control safety system of sludge pump | |
| CN113983005A (en) | Intelligent pump station system for ship lock | |
| CN219657376U (en) | Novel electronic pressure testing device | |
| CN112879627B (en) | Multi-redundancy-proportion pilot-operated safety water hammer relief valve directly driven by vane motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |