CN207315319U - A kind of cover-plate type natural gas wellhead pipeline throttling arrangement - Google Patents
A kind of cover-plate type natural gas wellhead pipeline throttling arrangement Download PDFInfo
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- CN207315319U CN207315319U CN201721206714.3U CN201721206714U CN207315319U CN 207315319 U CN207315319 U CN 207315319U CN 201721206714 U CN201721206714 U CN 201721206714U CN 207315319 U CN207315319 U CN 207315319U
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- natural gas
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- throttling arrangement
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Abstract
The utility model provides a kind of cover-plate type natural gas wellhead pipeline throttling arrangement, including along the sequentially connected air inlet pipe in natural gas flow direction, cylinder and air outlet pipe, the cylinder both sides are equipped with inlet chamber and outlet chamber, the internal diameter of the inlet chamber is tapered into along natural gas flow direction, the outlet chamber uses staircase structural model, and the internal diameter of outlet chamber becomes larger along natural gas flow direction, the inner barrel is equipped with flow nipple, there is throttle orifice on flow nipple, the both ends of the throttle orifice are connected with inlet chamber and outlet chamber respectively, the utility model passes through step energy dissipating area's dissipation flowed energy, form low pressure steady air flow, can ensureing summer gas well to fail in flow controller, replace during successful several months can normal opening well and making production to salvaging, gas well deliverability is played in time, and effectively protect needle-valve.
Description
Technical field
It the utility model is related to natural gas extraction technical field, and in particular to a kind of cover-plate type natural gas wellhead pipeline throttling
Device.
Background technology
In natural gas extraction, in order to be depressured, throttle and limit the production, underground throttle device usually is installed in gas well underground, at present,
Sulige gas field wide popularization and application of reviving is slip-type underground throttle, which is by slips is locking, packing element seals, gas
Mouth realizes a kind of downhole tool of pit shaft natural gas reducing pressure by regulating flow with production, completes flow controller dispensing by piano wire, sits
The underground work such as envelope and salvaging.As the production time extends, flow controller failure well increases year by year, and the G.I.H time is longer
Flow controller, easier failure, more easily occurring packing element in replacement process is salvaged can not bounce back, slips fouling sand card, can not solve
Phenomena such as envelope.For such gas well, the more wells of tissue, more tool combinations are needed to salvage construction, construction period is up to the several months, seriously prolongs
Gas well deliverability plays in time by mistake.If directly with the throttling production of well head noticeable degree, gases at high pressure carrying sand grains is often within a few hours
Thorn leakage spool, replaces time-consuming and laborious, production cost height.
Utility model content
The purpose of the utility model is to overcome solve flow controller to fail to the salvaging replacement successful several months（Summer）,
Gas well for a long time can not normal opening well and making production problem, and then protect needle-valve, a kind of reduction production cost purpose, there is provided cover board
Formula natural gas wellhead pipeline throttling arrangement.
The technical solution of the utility model is：A kind of cover-plate type natural gas wellhead pipeline throttling arrangement, including along natural gas
The sequentially connected air inlet pipe in flow direction, cylinder and air outlet pipe, the cylinder both sides are equipped with inlet chamber and outlet chamber, inlet chamber and
Outlet chamber is connected with air inlet pipe and air outlet pipe respectively, and the internal diameter of the inlet chamber is tapered into along natural gas flow direction, described
Outlet chamber uses staircase structural model, and the internal diameter of outlet chamber becomes larger along natural gas flow direction, and the inner barrel is equipped with
Flow nipple, has throttle orifice on flow nipple, the both ends of the throttle orifice are connected with inlet chamber and outlet chamber respectively.
The flow nipple is rectangular parallelepiped structure.
For the flow nipple out of cylinder top insertion tube body, the cylinder top is equipped with cover board.
The cover board is bolted with cylinder.
O-ring is equipped between the cover board and cylinder.
The free end of the air inlet pipe and air outlet pipe is equipped with flange.
The beneficial effects of the utility model：
This cover-plate type natural gas wellhead pipeline throttling arrangement of the utility model passes through step energy dissipating area's dissipation air-flow
Energy, forms low pressure steady air flow, it is ensured that summer gas well is during flow controller fails and replaces the successful several months to salvaging
Can normal opening well and making production, play gas well deliverability in time, and effectively protect needle-valve, simple in structure, size is small, easy processing, easily
Installation, processing cost is low, alternative well head needle-valve, reduces production cost in addition, cylinder top setting cover board, facilitates flow nipple more
Change, can meet different tolerance sections tune production needs, strong applicability, according to actual gas well practical condition, selection matching throttling
Mouth, is decreased or increased the area by cross section, realizes the adjusting of flow.
The utility model is described in further details below with reference to attached drawing.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model cover-plate type natural gas wellhead pipeline throttling arrangement；
Fig. 2 is Section A-A schematic diagram in Fig. 1；
Fig. 3 is section B-B schematic diagram in Fig. 1；
Fig. 4 is the side schematic view of flow nipple in Fig. 1；
Fig. 5 is the top view of Fig. 1 cover plates.
Description of reference numerals：1st, cylinder；2nd, flow nipple；3rd, throttle orifice；4th, inlet chamber；5th, outlet chamber；6th, air inlet pipe；7th, go out
Tracheae；8th, cover board；9th, bolt；10th, O-ring.
Embodiment
In the description of the utility model, it is to be understood that the indicating position such as term " top ", " both sides " or position are closed
It is to be described based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplifying, rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as the limitation to the utility model.
Embodiment 1：
In order to overcome, a kind of cover-plate type natural gas wellhead pipeline throttling dress as shown in Figures 1 to 5 is present embodiments provided
Put, including air inlet is equipped with along the sequentially connected air inlet pipe 6 in natural gas flow direction, cylinder 1 and air outlet pipe 7,1 both sides of cylinder
Chamber 4 and outlet chamber 5, inlet chamber 3 and outlet chamber 4 are connected with air inlet pipe 6 and air outlet pipe 7 respectively, and the internal diameter of the inlet chamber 4 is along day
Right flow of air direction tapers into, and the outlet chamber 5 uses staircase structural model, and the internal diameter of outlet chamber 5 is along natural gas flow side
To becoming larger, the inside of cylinder 1 is equipped with flow nipple 2, there is throttle orifice 3, the both ends difference of the throttle orifice 3 on flow nipple 2
Connected with inlet chamber 4 and outlet chamber 5.
The operation principle of this cover-plate type natural gas wellhead pipeline throttling arrangement provided by the utility model is as follows：
This cover-plate type natural gas wellhead pipeline throttling arrangement of the utility model selects what is needed on surface line
Flow nipple, natural gas pass through air inlet pipe 6, cylinder 1 and air outlet pipe 7, into the natural gas of cylinder 1, pass through 4 internal diameter of inlet chamber successively
Diminish successively, fluid flow rate increase, the natural gas after flow nipple is flowed out by the outlet chamber of step again, in step
Energy dissipating area, makes high-speed flow that rotary roll occur between steps at different levels so that air-flow turbulent fluctuation constantly aggravates, effective dissipation air-flow energy
Amount, forms low pressure steady air flow, through defeated outside downstream line, prevents high-speed flow from causing erosion to tube wall and valve.
This cover-plate type natural gas wellhead pipeline throttling arrangement of the utility model passes through step energy dissipating area's dissipation air-flow
Energy, forms low pressure steady air flow, it is ensured that summer gas well is during flow controller fails and replaces the successful several months to salvaging
Can normal opening well and making production, play gas well deliverability in time, and effectively protect needle-valve, simple in structure, size is small, easy processing, easily
Installation, processing cost is low, alternative well head needle-valve, reduces production cost.
Embodiment 2：
On the basis of embodiment 1, a kind of cover-plate type natural gas wellhead pipeline throttling arrangement is present embodiments provided, it is described
Flow nipple 2 is rectangular parallelepiped structure, and flow nipple 2 is simple in structure.
Further, for the flow nipple 2 out of the insertion of 1 top of cylinder cylinder 1,1 top of cylinder is equipped with cover board 8.Section
It is convenient that stem bar 2 is replaced, and can meet different tolerance sections tune production needs, strong applicability, according to actual gas well practical condition, choosing
Matching flow nipple is selected, the area by cross section is decreased or increased, realizes the adjusting of flow.
Embodiment 3：
On the basis of embodiment 2, a kind of cover-plate type natural gas wellhead pipeline throttling arrangement is present embodiments provided, in order to
It is easily installed and dismantles, the cover board 8 is connected with cylinder 1 by bolt 9.
Further, in order to ensure sealing effect, O-ring 10 is equipped between the cover board 8 and cylinder 1.
Embodiment 4：
On the basis of embodiment 1, a kind of cover-plate type natural gas wellhead pipeline throttling arrangement is present embodiments provided, it is described
The free end of air inlet pipe 6 and air outlet pipe 7 is equipped with flange, convenient operation.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to the utility model
Limitation, it is every to be belonged to the same or similar design of the utility model within the scope of protection of the utility model.
Claims (6)
- A kind of 1. cover-plate type natural gas wellhead pipeline throttling arrangement, it is characterised in that：Including connecting successively along natural gas flow direction The air inlet pipe connect（6）, cylinder（1）And air outlet pipe（7）, the cylinder（1）Both sides are equipped with inlet chamber（4）And outlet chamber（5）, air inlet Chamber（4）And outlet chamber（5）Respectively with air inlet pipe（6）And air outlet pipe（7）Connection, the inlet chamber（4）Internal diameter along natural gas flow Dynamic direction tapers into, the outlet chamber（5）Using staircase structural model, and outlet chamber（5）Internal diameter along natural gas flow direction Become larger, the cylinder（1）Inside is equipped with flow nipple（2）, flow nipple（2）On have throttle orifice（3）, the throttle orifice（3）'s Both ends respectively with inlet chamber（4）And outlet chamber（5）Connection.
- 2. cover-plate type natural gas wellhead pipeline throttling arrangement as claimed in claim 1, it is characterised in that：The flow nipple（2） For rectangular parallelepiped structure.
- 3. cover-plate type natural gas wellhead pipeline throttling arrangement as claimed in claim 2, it is characterised in that：The flow nipple（2） From cylinder（1）Cylinder is inserted on top（1）It is interior, the cylinder（1）Top is equipped with cover board（8）.
- 4. cover-plate type natural gas wellhead pipeline throttling arrangement as claimed in claim 3, it is characterised in that：The cover board（8）With Cylinder（1）Pass through bolt（9）Connection.
- 5. cover-plate type natural gas wellhead pipeline throttling arrangement as claimed in claim 3, it is characterised in that：The cover board（8）With Cylinder（1）Between be equipped with O-ring（10）.
- 6. cover-plate type natural gas wellhead pipeline throttling arrangement as claimed in claim 1, it is characterised in that：The air inlet pipe（6） And air outlet pipe（7）Free end be equipped with flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206714.3U CN207315319U (en) | 2017-09-20 | 2017-09-20 | A kind of cover-plate type natural gas wellhead pipeline throttling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206714.3U CN207315319U (en) | 2017-09-20 | 2017-09-20 | A kind of cover-plate type natural gas wellhead pipeline throttling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207315319U true CN207315319U (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721206714.3U Active CN207315319U (en) | 2017-09-20 | 2017-09-20 | A kind of cover-plate type natural gas wellhead pipeline throttling arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664356A (en) * | 2020-06-16 | 2020-09-15 | 陕西航天德林科技集团有限公司 | Well site throttling method and well site throttling system |
-
2017
- 2017-09-20 CN CN201721206714.3U patent/CN207315319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664356A (en) * | 2020-06-16 | 2020-09-15 | 陕西航天德林科技集团有限公司 | Well site throttling method and well site throttling system |
| CN111664356B (en) * | 2020-06-16 | 2022-02-25 | 陕西航天德林科技集团有限公司 | Well site throttling method and well site throttling system |
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