CN201934047U - Pneumatic choke manifold - Google Patents
Pneumatic choke manifold Download PDFInfo
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- CN201934047U CN201934047U CN2011200279952U CN201120027995U CN201934047U CN 201934047 U CN201934047 U CN 201934047U CN 2011200279952 U CN2011200279952 U CN 2011200279952U CN 201120027995 U CN201120027995 U CN 201120027995U CN 201934047 U CN201934047 U CN 201934047U
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Abstract
The utility model relates to a pneumatic choke manifold which comprises a gas control box, a riser pressure transmitter, a sleeve pressure transmitter, a valve position transmitter, a pneumatic motor and a throttle valve; the gas control box is connected with a gas source through a pipeline, and a gas source pressure gauge is arranged on the pipeline; the pipeline is divided into two branches, each brand of pipeline is respectively provided with an air pressure regulating valve and a barometer; one branch is respectively connected with the riser pressure transmitter, the sleeve pressure transmitter and the valve position transmitter; the other ends of the riser pressure transmitter, the sleeve pressure transmitter and the valve position transmitter are respectively connected with a drill pipe pressure gauge, a casing pressure gauge and a valve position opening degree gauge; the other branch is connected with a two-position four-way reversing slide valve, and the two-position four-way reversing slide valve is connected with the pneumatic motor and a backpressure valve by the pipelines; the front end of the pneumatic motor is provided with a gear, and the gear is mutually meshed with the gear on the front end of the throttle valve; and the valve rod of the throttle valve passes through the gear and is mutually contacted with the top rod of the valve position transmitter. The pneumatic choke manifold solve the problem that a hydraulic choke manifold is easy to be frozen in the Northeast in winter.
Description
Technical field
The utility model relates to well-control equipment, concrete is a kind of pneumatic choke manifold.
Background technology
At present, the choke manifold that adopts in the China's oil drilling well has only two kinds, and a kind of is manual choke manifold, and a kind of is the choke manifold that surges.Manually choke manifold is very inconvenient in manipulating, in when, in drilling process the blowout overflow taking place when, operating personnel must go to the choke manifold place at once, the artificial manual throttle valve of reconciling, waste time and energy, and can not observe standpipe pressure and casing pressure at any time, thereby in time closing well causes blowout out of control.And the choke manifold that surges though operation is very easy, when blowout took place, operating personnel can control the choke valve that surges by the hydraulic control case, but hydraulic control unit is not suitable for the cold relatively the Northeast of weather, the winter oil Louis is frozen, and causes the hydraulic control case to break down, and it is very inconvenient to keep in repair.Therefore, invention is a kind of is applicable to that the choke manifold of the Northeast is very important.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of pneumatic choke manifold at the problems referred to above, solves the choke manifold area problem of easily freezing winter northeastward of surging.
The utility model is achieved through the following technical solutions: pneumatic choke manifold comprises Pneumatic controlled box, standpipe pressure transmitter, casing pressure transmitter, valve position transmitter, air motor and choke valve, vertical-fracture meter, casing pressure table, valve position unlatching kilsyth basalt, bleed pressure table, two-position four-way reversing slide valve are housed on the Pneumatic controlled box panel, pipeline is connected between Pneumatic controlled box and the source of the gas, and the bleed pressure table is arranged on the pipeline; Pipeline is divided into two, every by-pass line is equipped with air pressure regulator valve and air gauge respectively, one is connected with standpipe pressure transmitter, casing pressure transmitter, valve position transmitter respectively, and the other end of standpipe pressure transmitter, casing pressure transmitter, valve position transmitter is opened kilsyth basalt with vertical-fracture meter, casing pressure table, valve position respectively and is connected; Another is connected with the two-position four-way reversing slide valve, and pipeline is connected between two-position four-way reversing slide valve and air motor and the counterbalance valve; The air motor front end has gear, the mutual interlock of gear of gear and choke valve front end; The valve rod of choke valve passes gear and contacts with the push rod of valve position transmitter.
Adopt the good effect of technique scheme: the utility model adopts the mode of gas control to drive the air motor rotation, because the gear of air motor and the mutual interlock of gear of choke valve front end, thereby the opening and closing of control choke valve; Freezing phenomenon can not take place in the winter in cold, is adapted at the Northeast and uses; Vertical-fracture meter, casing pressure table, valve position unlatching kilsyth basalt, bleed pressure table, two-position four-way reversing slide valve all are installed on the Pneumatic controlled box panel, handled easily, the driller is the opening and closing of remote-controlled choke valve in the numerical value situation of observing each instrument, does not need execute-in-place, and is time saving and energy saving; With respect to the choke manifold that surges, the utility model structure is simple relatively, and is easy to operate, is convenient to maintenance.
Four, description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Among the figure: 1 standpipe pressure transmitter, 2 casing pressure transmitters, 3 valve position transmitters, 4 air motors, 5 choke valves, 6 vertical-fracture meters, 7 casing pressure tables, 8 valve position are opened kilsyth basalt, 9 bleed pressure tables, 10 two-position four-way reversing slide valves, 11,11a air pressure regulator valve, 12,12a air gauge, 13 counterbalance valves, 14 air filters.
Five, the specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a schematic diagram of the present utility model, as shown in the figure, pneumatic choke manifold comprises Pneumatic controlled box, standpipe pressure transmitter 1, casing pressure transmitter 2, valve position transmitter 3, air motor 4 and choke valve 5, vertical-fracture meter 6, casing pressure table 7, valve position unlatching kilsyth basalt 8, bleed pressure table 9, two-position four-way reversing slide valve 10 are housed on the Pneumatic controlled box panel, pipeline is connected between Pneumatic controlled box and the source of the gas, bleed pressure table 9 is arranged on the pipeline, and what bleed pressure table 9 showed is the compressed air atmospheric pressure value of input Pneumatic controlled box.Pipeline is divided into two, every by-pass line is equipped with air pressure regulator valve 11, air pressure regulator valve 11a and air gauge 12, air gauge 12a respectively, air pressure regulator valve 11, air pressure regulator valve 11a are used to regulate the atmospheric pressure value of every by-pass line, and air gauge 12, air gauge 12a then are used to show the output pressure value of air pressure regulator valve 11, air pressure regulator valve 11a.One is connected with standpipe pressure transmitter 1, casing pressure transmitter 2, valve position transmitter 3 respectively, the other end of standpipe pressure transmitter 1, casing pressure transmitter 2, valve position transmitter 3 is opened kilsyth basalt 8 with vertical-fracture meter 6, casing pressure table 7, valve position respectively and is connected, vertical-fracture meter 6 shows the closing well standpipe pressure, casing pressure table 7 shows shut-in casing pressure, and valve position is opened the opening degree that kilsyth basalt 8 shows choke valve 5.Another is connected with two-position four-way reversing slide valve 10, and pipeline is connected between two-position four-way reversing slide valve 10 and air motor 4 and the counterbalance valve 13, and being used to drive air motor 4 is just changeing or reverse.Air motor 4 front ends have gear, the mutual interlock of gear of gear and choke valve 5 front ends, the valve rod of choke valve 5 passes gear and contacts with the push rod of valve position transmitter 3, when air motor 4 is just changeing or is reversing, drive the gear counter-rotating of choke valve 5 front ends or just changeing, make the valve rod of choke valve 5 stretch out or withdraw, owing to the push rod of valve rod and valve position transmitter 3 contacts, valve position transmitter 3 changes into air pressure signal with mechanical force and passes to valve position unlatching kilsyth basalt 8, shows the state of choke valve 5.In order to prevent that choke manifold generation circuit from stopping up, air filter 14 can be housed on the pipeline between Pneumatic controlled box and the source of the gas, the compressed air that enters Pneumatic controlled box is carried out dust removal by filtration, keep circuit unobstructed.
Generally speaking, choke manifold, just needs to start choke manifold just for armed state when digging a well near oil-gas Layer, prevents blowout.At first should check the duty that vertical-fracture meter 6, casing pressure table 7, valve position on the Pneumatic controlled box are opened kilsyth basalt 8, bleed pressure table 9, two-position four-way reversing slide valve 10 and air gauge 12 and air gauge 12a, bleed pressure table 9 should show 0.6 ~ 1.0MPa, air gauge 12 shows 0.35 MPa, keep being transported to the constant pressure of standpipe pressure transmitter 1, casing pressure transmitter 2, valve position transmitter 3, air gauge 12a shows 0.4 ~ 0.8 MPa, guarantees to enter the gas pressure of two-position four-way reversing slide valve 10.Vertical-fracture meter 6, casing pressure table 7 show zero-pressure at the beginning, the pressure that the driller should observe vertical-fracture meter 6, casing pressure table 7 constantly changes, when standpipe pressure with casing pressure is excessive when needing kill-job, operation two-position four-way reversing slide valve 10 handles, with the right position of the spool tuning of two-position four-way reversing slide valve 10, the air-flow reverse flow is to air motor 4, drive the gear counter-rotating of air motor 4 front ends, because the gear of air motor 4 front ends and the mutual interlock of gear of choke valve 5 front ends, the gear counter-rotating of air motor 4 front ends, the gear that drives choke valve 5 front ends just changes, and choke valve 5 cuts out.The valve rod of choke valve 5 passes gear and contacts with the push rod of valve position transmitter 3, and valve position transmitter 3 changes into air pressure signal with mechanical force and passes to valve position unlatching kilsyth basalt 8, shows the degree of closing of choke valve 5.
When needs are opened choke valve 5, the driller can operate two-position four-way reversing slide valve 10 handles, position, a spool tuning left side with two-position four-way reversing slide valve 10, the air-flow forward flow is to air motor 4, the gear that drives air motor 4 front ends just changes, because the gear of air motor 4 front ends and the mutual interlock of gear of choke valve 5 front ends, the gear of air motor 4 front ends just changes, drive the gear counter-rotating of choke valve 5 front ends, choke valve 5 is opened.The valve rod of choke valve 5 passes gear and contacts with the push rod of valve position transmitter 3, and valve position transmitter 3 changes into air pressure signal with mechanical force and passes to valve position unlatching kilsyth basalt 8, shows the opening degree of choke valve 5.
Claims (2)
1. pneumatic choke manifold, it is characterized in that: this device comprises Pneumatic controlled box, standpipe pressure transmitter (1), casing pressure transmitter (2), valve position transmitter (3), air motor (4) and choke valve (5), vertical-fracture meter (6), casing pressure table (7), valve position unlatching kilsyth basalt (8), bleed pressure table (9), two-position four-way reversing slide valve (10) are housed on the Pneumatic controlled box panel, pipeline is connected between Pneumatic controlled box and the source of the gas, and bleed pressure table (9) is arranged on the pipeline; Pipeline is divided into two, every by-pass line is equipped with air pressure regulator valve (11,11a) and air gauge (12,12a) respectively, one is connected with standpipe pressure transmitter (1), casing pressure transmitter (2), valve position transmitter (3) respectively, and the other end of standpipe pressure transmitter (1), casing pressure transmitter (2), valve position transmitter (3) is opened kilsyth basalt (8) with vertical-fracture meter (6), casing pressure table (7), valve position respectively and is connected; Another is connected with two-position four-way reversing slide valve (10), and pipeline is connected between two-position four-way reversing slide valve (10) and air motor (4) and the counterbalance valve (13); Air motor (4) front end has gear, the mutual interlock of gear of gear and choke valve (5) front end; The valve rod of choke valve (5) passes gear and contacts with the push rod of valve position transmitter (3).
2. pneumatic choke manifold according to claim 1 is characterized in that: air filter (14) is housed on the pipeline between described Pneumatic controlled box and the source of the gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200279952U CN201934047U (en) | 2011-01-27 | 2011-01-27 | Pneumatic choke manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200279952U CN201934047U (en) | 2011-01-27 | 2011-01-27 | Pneumatic choke manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934047U true CN201934047U (en) | 2011-08-17 |
Family
ID=44445569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200279952U Expired - Fee Related CN201934047U (en) | 2011-01-27 | 2011-01-27 | Pneumatic choke manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913088A (en) * | 2015-06-03 | 2015-09-16 | 南京年代科技有限公司 | Floating energy saving check valve |
-
2011
- 2011-01-27 CN CN2011200279952U patent/CN201934047U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913088A (en) * | 2015-06-03 | 2015-09-16 | 南京年代科技有限公司 | Floating energy saving check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |