CN106246146B - A kind of adjustable choke manifold - Google Patents
A kind of adjustable choke manifold Download PDFInfo
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- CN106246146B CN106246146B CN201610858109.8A CN201610858109A CN106246146B CN 106246146 B CN106246146 B CN 106246146B CN 201610858109 A CN201610858109 A CN 201610858109A CN 106246146 B CN106246146 B CN 106246146B
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- 210000002445 nipple Anatomy 0.000 claims abstract description 45
- 239000012530 fluid Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 7
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 5
- 206010020852 Hypertonia Diseases 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000004576 sand Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention provides a kind of adjustable choke manifolds, it includes two adjustable throttling positive chokes, a manual needle-like formula throttle valve, 11 manual platform gate valves, three erosion resistance diameter changing nipples, a pipeline threeway, one pipeline four-way, two pipelines five pass to and manifold pipeline composition.The choke manifold is Two In and Two Out structure, and using manual needle-like formula throttle valve and the second adjustable throttling positive choke control, the other side is intermediate in line using the first adjustable throttling positive choke control for side.Certain throttle diameter is determined by the adjusting of adjustable throttling positive choke, control two-way throttling, it is in line all the way, to realize after pressure break in open flow discharge opeing process to oil pipe, the accurate control of casing pressure, it prevents hypertonia from causing line burst or hypotony that stratum is caused to spit sand, avoids positive choke erosion in choke manifold.
Description
Technical field
The invention belongs to oil/gas well surface throttling technology fields, and in particular to a kind of adjustable choke manifold.
Background technique
Currently, there are positive choke replacements for formula choke manifold for oil/gas well open flow drain " the single positive choke+needle-valve " that uses
Difficulty, oil nozzle aperture can not be adjusted in real time, oil nozzle not erosion resistance, adjustable needle valve problem easy to damage, and in open flow drain
The problems such as Cheng Zhong is also easy to produce oil nozzle erosion damage since throttling oil nozzle aperture is small, and downstream fluid erosion prevention pipe nipple erosion damages, increases
Oil nozzle, adjustable needle valve, the frequency of pipe nipple replacement increase input cost, reduce the service life of choke manifold, serious to make
About oil gas scene open flow drain efficiency and progress, delay completion period.
Summary of the invention
Consolidate in open flow discharge opeing process after pressure break to solve " single positive choke+needle-valve " formula choke manifold in the prior art
The replacement of stand oil mouth is difficult, and positive choke throttle diameter can not be adjusted in real time, positive choke erosion damage, manual needle valve damage, pressure
The problems such as falling tone control is inaccurate, and fluid erosion prevention pipe nipple erosion damages, the purpose of the present invention is to propose to a kind of adjustable choke manifolds, should
In use, manual needle valve can open maximum opening to choke manifold, carry out merely with adjustable throttling positive choke
Throttle open flow, adjusts since real time bidirectional may be implemented in adjustable throttling positive choke, does not need replacement oil nozzle, reduce scene
The labor intensity of operator, while it being configured with corresponding erosion resistance diameter changing nipple, it reduces from adjustable throttling positive choke
The fluid velocity of outflow plays certain fluid erosion prevention effect.
To realize the above-mentioned technical purpose, the present invention is realised by adopting the following technical scheme.
There is a manifold set to be put into mouth, the manifold set for a kind of adjustable choke manifold, including pipeline four-way, pipeline four-way
Be put into mouth and wellhead casing pipe gate valve connected by first manual flat gate valve, the wherein nozzle of the pipeline four-way by pipeline according to
The second manual flat gate valve of secondary connection, the first adjustable throttling positive choke, the first diameter changing nipple, third manual platform gate valve,
First pipeline five is logical, and first pipeline five leads to a nozzle and exported by the 4th manual platform gate valve the first manifold of connection, and first
Pipeline five leads to another nozzle and is sequentially connected the 6th manual platform gate valve and pipeline threeway, and a nozzle of the pipeline threeway passes through the
Seven manual platform gate valves connect the outlet of the second manifold, and another nozzle of the pipeline threeway is sequentially connected the 8th manually by pipeline
Flat gate valve, the second diameter changing nipple, the second adjustable throttling positive choke, third diameter changing nipple, manual needle-like formula throttle valve, the
Nine manual platform gate valves, the second pipeline five is logical, the 11st manual flat gate valve；Another nozzle connection the tenth of the pipeline four-way
One manual flat gate valve；Second pipeline five is logical, and there is a manifold oil to be put into mouth, and it is flat manually by the tenth that the manifold oil is put into mouth
Plate gate valve connects well mouth oil pipe gate valve, and the logical wherein nozzle of the second pipeline five is sequentially connected the 5th manual platform gate valve by pipeline
It is logical with the first pipeline five.
Preferably, the internal diameter of the inner cavity of first diameter changing nipple is gradual change type, and the first diameter changing nipple can close to first
The diameter of mode throttling positive choke one end is minimum.
Preferably, the interior intracavitary heap along its length of the gradual change type of first diameter changing nipple is welded with YG8 hard alloy
Tungsten carbide material layer.
Preferably, the hard alloy tungsten carbide material layer is with a thickness of 3.5mm.
Preferably, it is detachably connected between the first adjustable throttling positive choke and first diameter changing nipple.
Preferably, choke manifold integrally long 3850mm, wide 2210mm, 620mm.
Preferably, above-mentioned pipeline selects the pipeline of 2-9/16 ", pressure-bearing 35MPa, and pipeline latus rectum is 65mm.
Preferably, all connections use flanged joint in choke manifold, and flange is 350 flange of 2-7/8 " EUE R27 standard,
Mating bolt is M27 × 3 × 175 studs.
Compared with prior art, beneficial effects of the present invention:
1, the present invention is equipped in choke manifold can the first adjustable throttling positive choke and for adjusting of real time bidirectional
Two adjustable throttling positive chokes, and diameter changing nipple is installed in adjustable throttling positive choke downstream, and in manual needle-like formula
Throttle valve downstream is equally equipped with diameter changing nipple, different by switch
Manual platform gate valve, needle-valve combination realize to oil pipe, the accurate control of casing pressure reduces the row of returning and takes sand
Liquid improves surface throttling efficiency to oil nozzle, pipe nipple, the erosion of gate valve.
2, the first adjustable throttling positive choke and the second adjustable throttling positive choke are easy to use, and abrasion-resistance is good,
Replacement oil nozzle is not needed, aperture adjustment range is wide, and diameter changing nipple replacement is convenient, has good erosive wear resistance, not only improves
The reducing pressure by regulating flow effect of choke manifold, also as save the replacement cost of manifold vulnerable part, reduces the labor of site operation personnel
Fatigue resistance, extends the service life of choke manifold, and practical, significant effect is suitable for open flow operation after well fracturing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of adjustable choke manifold.
Fig. 2 is the partial enlarged view in Fig. 1 at dotted line frame.
In figure: 1- first manual flat gate valve；2- pipeline four-way；The manual flat gate valve of 3- second；The adjustable section of 4- first
Flow positive choke；The first diameter changing nipple of 5-；6- third manual platform gate valve；The first pipeline of 7- five is logical；The 4th manual platform lock of 8-
Valve；The 5th manual platform gate valve of 9-；The 6th manual platform gate valve of 10-；11- pipeline threeway；The 7th manual platform gate valve of 12-；13-
8th manual platform gate valve；The second diameter changing nipple of 14-；The adjustable throttling positive choke of 15- second；16- third diameter changing nipple；
The manual needle-like formula throttle valve of 17-；The 9th manual platform gate valve of 18-；The second pipeline of 19- five is logical；The tenth manual platform gate valve of 20-；
The manual flat gate valve of 21- the 11st；22- flow regulation handle；23- connecting rod；The aperture 24- dial；25- flow adjusts transmission
Axis；26- flow controller；27- oil nozzle seat；28- valve seat；29- vertical passage；30- interconnection；31- bearing；32- pin.
Specific embodiment
The present invention is described in further details below in conjunction with specific embodiment.
Embodiment 1:
As shown in Figure 1, open flow is arranged after being mainly used in well fracturing the invention proposes a kind of adjustable choke manifold
In liquid operation.
The choke manifold includes pipeline four-way 2, and there is pipeline four-way 2 a manifold set to be put into mouth, and the manifold set is put into mouth
Wellhead casing pipe gate valve is connected by first manual flat gate valve, a wherein nozzle for the pipeline four-way 2 is successively connected by pipeline
Connect the second manual flat gate valve 3, the first adjustable throttling positive choke 4, the first diameter changing nipple 5, third manual platform gate valve 6,
First pipeline five logical 7, first pipeline five lead to 7 one nozzles and connect the outlet of the first manifold by the 4th manual platform gate valve 8, the
One pipeline five leads to 7 another nozzles and is sequentially connected the 6th manual platform gate valve 10 and pipeline threeway 11, and the one of the pipeline threeway 11
Nozzle connects the outlet of the second manifold by the 7th manual platform gate valve 12, another nozzle of the pipeline threeway 11 by pipeline according to
The 8th manual platform gate valve 13 of secondary connection, the second diameter changing nipple 14, the second adjustable throttling positive choke 15, third diameter changing nipple
16, manual needle-like formula throttle valve 17, the 9th manual platform gate valve 18, the second pipeline five leads to the 19, the 11st manual flat gate valve 21；
Another nozzle of the pipeline four-way 2 connects the 11st manual flat gate valve 21；There is second pipeline five logical 19 a manifold oil to put
Entrance, the manifold oil are put into mouth and connect well mouth oil pipe gate valve by the tenth manual platform gate valve 20, the second pipeline five logical 19 its
In a nozzle the 5th manual platform gate valve 9 and the first pipeline five logical 7 be sequentially connected by pipeline.
Wherein, the pipeline threeway 11, pipeline four-way 2, the second pipeline five lead to 19 second pipeline four-ways 7, the first pipeline five
Logical 5, the second pipeline five logical 11, first manual flat gate valve 1, the second manual flat gate valve 3, third manual platform gate valve 6, the 4th
Manual platform gate valve 8, the 5th manual platform gate valve 9, the 6th manual platform gate valve 10, the 7th manual platform gate valve 12, the 8th hand
Dynamic flat gate valve 13, the 9th manual platform gate valve 18, the 9th manual platform gate valve 18, the tenth manual platform gate valve 20, the 11st
Manual platform gate valve 21, the first diameter changing nipple 5, the second diameter changing nipple 14, third diameter changing nipple 16 and the second adjustable throttling
Positive choke 17 is selected has part in the market, is not described in detail herein.
The course of work of choke manifold of the invention is:
The manifold set at pipeline four-way 2 mouth is put into first to be attached with wellhead casing pipe gate valve；Second pipeline five is led to
Manifold oil at 19 is put into mouth and is attached with well mouth oil pipe gate valve；The outlet of the first manifold and high pressure at first pipeline five logical 7
Hose or hard pipeline (liquids recovery) are attached, and the second manifold outlet at pipeline threeway 11 is carried out with hard relief line
Connection.
After the completion of above-mentioned connection, according to oil/gas well open flow drain discharge capacity and well head oil, covers pressure control and need, adjust first
Adjustable throttling positive choke 4, the second adjustable throttling positive choke 15 are determined in certain throttle diameter numerical value, then under it
The first diameter changing nipple 5 and the second diameter changing nipple 14 are installed in trip respectively, equally install third in manual 17 downstream of needle-like formula throttle valve
Diameter changing nipple 16.
When casing open flow, turn off well mouth oil pipe gate valve, opens first manual flat gate valve 1, the second manual flat gate valve 3,
Third manual platform gate valve 6, the 4th manual platform gate valve 8, the 9th manual platform gate valve 21 of closing, the 5th manual platform gate valve 9,
The accurate control that throttles can be carried out to casing pressure；If casing pressure is excessively high, openable 9th manual platform gate valve 21, the 5th manually
Flat gate valve 9 closes the second manual flat gate valve 3, and third manual platform gate valve 6, the 6th manual platform gate valve 10, the 9th manually
Flat gate valve 18, set tapping body lead to 7 exits from the first pipeline five and flow out, and discharge a part of fluid pressure.
When oil pipe open flow, turn off wellhead casing pipe gate valve, opens the 8th manual platform gate valve 20, the second manual flat gate valve 3,
Third manual platform gate valve 6, the 4th manual platform gate valve 8, the 5th manual platform gate valve 9 of closing, the 6th manual platform gate valve 10,
The accurate control that throttles can be carried out to tubing pressure；Or open the 8th manual platform gate valve 20, the 9th manual platform gate valve 18, hand
Dynamic needle-like formula throttle valve 17, the 8th manual platform gate valve 13, the 7th manual platform gate valve 12 close the 6th manual platform gate valve
10, the 5th manual platform gate valve 9, the 9th manual platform gate valve 21 can also carry out the accurate control that throttles to tubing pressure；If oil is put
Hypertonia, openable 5th manual platform gate valve 9, oily tapping body lead to 7 from the first pipeline five, the outlet stream of pipeline threeway 11
Out, a part of fluid pressure is discharged.
After open flow drain, closed-in well muzzle sluice valve and oil pipe gate valve, the choke manifold of disassembly cleaning in time after pressure release
In each part, so as to open flow drain operation again.
The choke manifold is put into mouth by manifold set, and manifold oil is put into mouth, the outlet of the first manifold, the second manifold outlet composition
Two In and Two Out (disengaging direction is as illustrated by the arrows in fig. 1) structure, side uses manual needle-like formula throttle valve 17 and the second adjustable section
It flows positive choke 15 to control, the other side is controlled using the first adjustable throttling positive choke 4, intermediate in line.By opening or closing
Different manual platform gate valves, needle-valve combination are closed, and passes through the first adjustable throttling positive choke 4, the second adjustable section
Stream is solid
The adjusting of stand oil mouth 15 determines certain throttle diameter, and control two-way throttling is in line all the way, to realize in pressure break
Afterwards to oil pipe, the accurate control of casing pressure in open flow discharge opeing process.If there is adjustable throttling positive choke throttling is lost all the way
Effect, can switch corresponding gate valve, be switched on the adjustable throttling positive choke of another way, put so as to be carried out continuously throttling
Drain operation is sprayed, the operation without will cause closing well replacement positive choke or be forced to bypass drain from choke manifold occurs
The present invention due to use the first adjustable throttling positive choke 4, the second adjustable throttling positive choke 15, first
Adjustable throttling positive choke 4, the second adjustable throttling positive choke 15 is easy to use, and abrasion-resistance is good, does not need more to change oil
Mouth, aperture adjustment range is wide, and diameter changing nipple replacement is convenient, has good erosive wear resistance, reduces open flow load fluid to oil
Mouth, pipe nipple, the erosion of gate valve significantly reduce the labor intensity of site operation personnel, have saved throttling open flow time and more
It changes oil mouth, the cost of pipe nipple significantly improves the reducing pressure by regulating flow effect of entire choke manifold, abrasion-resistance and service life, fits
Wide with property, practical, application effect is significant, is suitably applied open flow operation after well fracturing.
Embodiment 2
On the basis of embodiment 1, as shown in Fig. 2, the first adjustable throttling positive choke and the second adjustable section
It is identical to flow 15 structure of positive choke comprising flow regulation handle 22, connecting rod 23, aperture dial 24, flow adjust transmission
Axis 25, flow controller 26, oil nozzle seat 27, valve seat 28 are equipped with a vertical passage 29,28 side wall of valve seat in 28 lower part of valve seat
It is equipped with an interconnection 30 being connected with vertical passage 29, oil nozzle seat 27, oil nozzle seat are housed inside the vertical passage 29
27 are equipped with scale value, the vertical passage 29 inside 24 lower part of aperture dial insertion valve seat 28, on aperture dial 24
End face is equipped with scale corresponding with the scale in oil nozzle seat 27, and is equipped with hole on each scale of aperture dial upper surface,
Flow is sequentially arranged with inside aperture dial 24 from top to bottom and adjusts transmission shaft 25 and flow controller 26, the flow, which is adjusted, to be passed
25 upper end of moving axis is connected with flow regulation handle 22 by connecting rod 23, and 22 lower end of flow regulation handle is connected with pin
23, and pin 32 is connected to the hole of 16 upper surface of aperture scale with inserted mode, in the flow controller 26 and oil nozzle seat 27
Portion is equipped with fluid channel, and oil nozzle seat 27 is located at flow controller 26
The fluid channel of lower end, flow controller 26 and oil nozzle seat 27 can form a channel, and the size in the channel with
The rotation of flow controller 26 and change.
It is hollow channel inside the aperture dial 24, and hollow channel top is equipped with bearing 31, bearing 31 is placed on stream
Amount adjusts 25 outside of transmission shaft.
Oil nozzle and seat design are integration by the present invention by adjustable oil nozzle, using " 22 drivings of flow regulation handle+hole
24 " mode of diameter dial carries out real to the first adjustable throttling positive choke 4, the aperture of the second adjustable throttling positive choke 15
When bidirectional modulation, small oil nozzle aperture tune can be directly gone to from big oil nozzle hole, big oil nozzle aperture tune can also be directly gone to from small oil nozzle hole, it is real
The purpose of the accurate reducing pressure by regulating flow of oil nozzle real time bidirectional, and the first adjustable throttling positive choke 4, the second adjustable throttling are showed
The structure design of positive choke 15 is simple, does not need replacement oil nozzle, and mechanical real time bidirectional is adjusted, and aperture adjustment range is big, uses
Convenient, long service life, wide adaptability is practical, and application effect is significant.
Measured through test, the first adjustable throttling positive choke 4, the second adjustable 15 aperture of throttling positive choke from 3~
25mm can real time bidirectional adjust, no replacement is required oil nozzle, in practical application, the adjusting of throttle diameter should be put according to oil gas scene pressure break
Discharge opeing process well head oil is sprayed, depending on covering discharge capacity and pressure condition；Chock pressure difference can be adjusted in real time between 0.1~45MPa
Section, with design pressure error within the scope of ± 0.3MPa.
Embodiment 3
On the basis of embodiment 2, the flow controller 26 and oil nozzle seat 27 use erosion resistance hard alloy tungsten carbide
YG8 material, wear-resistant material make positive choke have very high abrasion-resistance.
Embodiment 4
On the basis of embodiment 1, as described in Figure 1, first diameter changing nipple 5, the second diameter changing nipple 14, third variable diameter
The internal diameter of the inner cavity of pipe nipple 16 is gradual change type.
Diameter of first diameter changing nipple 5 close to first adjustable throttling 4 one end of positive choke is minimum.It is short using the first variable diameter
The variation for saving 5 internal structures, the fluid for making it return out from the first adjustable throttling 4 outlet end of positive choke flow through first change
Flow velocity and pressure steadily reduce when diameter pipe nipple 5, and pressure drop slowly reduces, the input end erosion effectivelying prevent.
The interior intracavitary heap along its length of the gradual change type of first diameter changing nipple 5 is welded with YG8 hard alloy tungsten carbide
Material layer, YG8 hard alloy tungsten carbide material layer all have higher abrasion-resistance with a thickness of 3.5mm, hardness HRC92~95
Energy.
Embodiment 5
On the basis of embodiment 1, the described first adjustable throttling positive choke 4 detachably connects with the first diameter changing nipple 5
It connects, the mode being detachably connected, which can be, to be bolted, and is threadedly coupled or is clamped, and this dismountable connection side is selected
Formula can be dismantled in time after open flow, maintain or replace reducing nozzle tip, so as to open flow operation again.
Embodiment 6
On the basis of embodiment 1, choke manifold integrally long 3850mm, wide 2210mm, 620mm.
The pipeline selects the pipeline of 2-9/16 ", pressure-bearing 35MPa, and pipeline latus rectum is 65mm.
The connection type of above-mentioned choke manifold are as follows: all connections use flanged joint in converging, and flange is 2-7/8 " EUE R27
350 flange of standard, mating bolt are M27 × 3 × 175 studs.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (7)
1. a kind of adjustable choke manifold, it is characterised in that: including pipeline four-way (2), there is pipeline four-way (2) a manifold set to put
Entrance, the manifold set be put into mouth by first manual flat gate valve connect wellhead casing pipe gate valve, the pipeline four-way (2) its
In a nozzle by pipeline be sequentially connected the second manual flat gate valve (3), the first adjustable throttling positive choke (4), first become
Diameter pipe nipple (5), third manual platform gate valve (6), the first pipeline five lead to (7), and first pipeline five leads to (7) one nozzles by the
Four manual platform gate valves (8) connect the outlet of the first manifold, and the first pipeline five leads to (7) another nozzle and is sequentially connected the 6th manual platform
Gate valve (10) and pipeline threeway (11), a nozzle of the pipeline threeway (11) pass through the 7th manual platform gate valve (12) connection the
The outlet of two manifolds, another nozzle of the pipeline threeway (11) are sequentially connected the 8th manual platform gate valve (13), the by pipeline
Two diameter changing nipples (14), the second adjustable throttling positive choke (15), third diameter changing nipple (16), manual needle-like formula throttle valve
(17), the 9th manual platform gate valve (18), the second pipeline five lead to (19), the 11st manual flat gate valve (21)；The pipeline four
Another nozzle of logical (2) connects the 11st manual flat gate valve (21)；Second pipeline five leads to (19), and there is a manifold oil to be put into mouth,
The manifold oil is put into mouth and connects well mouth oil pipe gate valve by the tenth manual platform gate valve (20), and the second pipeline five leads to (19) wherein
One nozzle is sequentially connected the 5th manual platform gate valve (9) by pipeline and the first pipeline five leads to (7)；
The first adjustable throttling positive choke and the second adjustable throttling positive choke (15) structure are identical comprising flow
Regulation handle (22), connecting rod (23), aperture dial (24), flow adjust transmission shaft (25), flow controller (26), oil nozzle
Seat (27), valve seat (28) are equipped with a vertical passage (29) in valve seat (28) lower part, valve seat (28) side wall be equipped with one with indulge
The interconnection (30) being connected to channel (29), the vertical passage (29) is internal to be equipped with oil nozzle seat (27), oil nozzle seat (27)
It is equipped with scale value, the internal vertical passage (29) of aperture dial (24) lower part insertion valve seat (28), aperture dial
(24) upper surface is equipped with scale corresponding with the scale on oil nozzle seat (27), and on each scale of aperture dial upper surface
Equipped with hole, flow is sequentially arranged with inside aperture dial (24) from top to bottom and adjusts transmission shaft (25) and flow controller (26),
The flow adjusts transmission shaft (25) upper end and is connected with flow regulation handle (22) by connecting rod (23), and the flow adjusts hand
Handle (22) lower end is connected with pin (23), and pin (32) is connected to the hole of aperture scale (16) upper surface, institute with inserted mode
It states and is equipped with fluid channel inside flow controller (26) and oil nozzle seat (27), oil nozzle seat (27) is located at flow controller (26)
The fluid channel of lower end, flow controller (26) and oil nozzle seat (27) can form a channel, and the size in the channel is with stream
The rotation of amount controller (26) and change.
2. adjustable choke manifold as described in claim 1, it is characterised in that: the inner cavity of first diameter changing nipple (5)
Internal diameter is gradual change type, and diameter of the first diameter changing nipple (5) close to first adjustable throttling positive choke (4) one end is minimum.
3. adjustable choke manifold as claimed in claim 2, it is characterised in that: the gradual change type of first diameter changing nipple (5)
Interior intracavitary heap along its length be welded with YG8 hard alloy tungsten carbide material layer.
4. adjustable choke manifold as claimed in claim 3, it is characterised in that: the hard alloy tungsten carbide material thickness degree
For 3 .5mm.
5. adjustable choke manifold as described in claim 1, it is characterised in that: the first adjustable throttling positive choke (4) and
It is detachably connected between first diameter changing nipple (5).
6. adjustable choke manifold as described in claim 1, it is characterised in that: above-mentioned pipeline selects the pipeline of 2-9/16 ",
Pressure-bearing 35MPa, pipeline latus rectum are 65mm.
7. adjustable choke manifold as described in claim 1, it is characterised in that: all connections are connected using flange in choke manifold
It connects, flange is 350 flange of 2-7/8 " EUE R27 standard, and mating bolt is M27 × 3 × 175 studs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858109.8A CN106246146B (en) | 2016-09-28 | 2016-09-28 | A kind of adjustable choke manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610858109.8A CN106246146B (en) | 2016-09-28 | 2016-09-28 | A kind of adjustable choke manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106246146A CN106246146A (en) | 2016-12-21 |
| CN106246146B true CN106246146B (en) | 2019-06-18 |
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| CN201610858109.8A Active CN106246146B (en) | 2016-09-28 | 2016-09-28 | A kind of adjustable choke manifold |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112228027A (en) * | 2020-07-10 | 2021-01-15 | 重庆新泰机械有限责任公司 | Multistage scour protection thorn sand-containing fracturing fluid flowback manifold device |
| CN116591644B (en) * | 2023-07-17 | 2023-09-19 | 大庆市天德忠石油科技有限公司 | Hydraulic sand blasting perforation choke manifold |
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| SU1744235A1 (en) * | 1990-01-08 | 1992-06-30 | Азербайджанский научно-исследовательский и проектно-конструкторский институт нефтяного машиностроения | Blowout preventer manifold for jack-up drilling and offshore fixed platforms |
| RU1807208C (en) * | 1991-01-11 | 1993-04-07 | Азербайджанский научно-исследовательский и проектно-конструкторский институт нефтяного машиностроения | Throttle of blowout preventer equipment with manual and hydraulic control |
| US5156212A (en) * | 1991-05-21 | 1992-10-20 | Bryant Thomas B | Method and system for controlling high pressure flow, such as in containment of oil and gas well fires |
| CN1332122C (en) * | 2004-05-31 | 2007-08-15 | 中国石油天然气股份有限公司 | Multi-stage throttling method for drilling high-pressure oil and gas well |
| CN201014199Y (en) * | 2007-02-16 | 2008-01-30 | 建湖县鸿达阀门管件有限公司 | Anti-erosion choke manifold |
| CN201696016U (en) * | 2010-07-04 | 2011-01-05 | 胜利油田胜机石油装备有限公司 | Quantitative and adjustable sleeve throttling valve for extracting oil and gas |
| CN102287157A (en) * | 2011-09-07 | 2011-12-21 | 盐城市大冈石油工具厂有限责任公司 | Multifunctional well-killing open flow manifold |
| CN203271673U (en) * | 2013-05-08 | 2013-11-06 | 宝鸡石油机械有限责任公司 | Automatically-controlled multiple branch choke manifold |
| CN103758481A (en) * | 2014-01-20 | 2014-04-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Hierarchical-depressurizing oil nozzle manifold |
| CN203797077U (en) * | 2014-02-14 | 2014-08-27 | 承德江钻石油机械有限责任公司 | Orifice plate type drilling throttling valve |
| CN104314493A (en) * | 2014-10-21 | 2015-01-28 | 江苏双辉机械制造有限公司 | Automatic remote control liquid-driving blowout-preventing choke manifold |
| CN204960868U (en) * | 2015-09-10 | 2016-01-13 | 江苏华展石油机械有限公司 | Choke manifold |
| CN105626004B (en) * | 2016-03-03 | 2017-12-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of Oil/gas Well open flow erosion resistance choke manifold |
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2016
- 2016-09-28 CN CN201610858109.8A patent/CN106246146B/en active Active
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| Publication number | Publication date |
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| CN106246146A (en) | 2016-12-21 |
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Effective date of registration: 20211018 Address after: 100007 Oil Mansion, 9 North Avenue, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 710018 room 1207, Changqing building, Changqing Xing Long Yuan District, Xi'an, Shaanxi Patentee before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. |