CN201246132Y - Non-smooth surface flexible rope corrugated pipe well head seal device - Google Patents
Non-smooth surface flexible rope corrugated pipe well head seal device Download PDFInfo
- Publication number
- CN201246132Y CN201246132Y CNU2008201096675U CN200820109667U CN201246132Y CN 201246132 Y CN201246132 Y CN 201246132Y CN U2008201096675 U CNU2008201096675 U CN U2008201096675U CN 200820109667 U CN200820109667 U CN 200820109667U CN 201246132 Y CN201246132 Y CN 201246132Y
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- CN
- China
- Prior art keywords
- pincers
- wellhead
- sucker rod
- assembly
- flexible rope
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a non-smooth surface flexible cable bellows wellhead seal device which is used to seal the wellhead device of a pumping well. The device is characterized in that a seal steel ring, an expansion rubber hose, a holding clamps assembly and an oil sucker rod are arranged on the device; the expansion rubber hose is connected with the lower end of the seal steel ring; the oil sucker rod is arranged on the middle part of the expansion rubber hose; the holding clamps assembly which is arranged beneath the expansion rubber hose is sleeved with the oil sucker rod; the seal steel ring which is arranged above the wellhead device is hermetically connected with the wellhead device; and other components are hung under the wellhead device and inside an oil pipe. The non-smooth surface flexible cable bellows wellhead seal device of the utility model changes the conventional packing box dynamic seal in the previous into the static seal, and achieves the purposes of no friction, no leakage, energy conservation, consumption reduction, and no pollution; the device has a reasonable and stable structure, and the diversity of the mounting and implementation scheme guarantees a strong applicability, convenience and reliability; meanwhile, the device can also be used for a sealed flexible oil sucker rod; and the device is maintenance free and has a long service life.
Description
Technical field
The utility model relates to the mechanical oil recovery technical field, is specifically related to a kind of non-smooth flexible rope corrugated pipe wellhead sealing device that does not have frictional resistance, do not have leakage.
Background technology
At present, the energy loss of sucker rod pumping down-hole part is mainly at packing box, sucker rod and oil well pump, and the energy loss of existing conventional packing box is mainly friction loss and leakage loss.Conventional packing box great majority are to adopt soft packing seal, make packing box filler and polished rod be in tight impaction state by rotation packing box gland, its seal form belongs to contact seal, and the contact force of contact seal makes the filler in polished rod and the packing box produce frictional force in the contact position.In general, this frictional force increases with the increase of operating pressure, decrement and contact area etc., reduces with the raising of movement velocity, temperature etc., also with sealed material and lubrication state much relations is arranged in addition.This makes existing packing box mainly have easy generation well head leakage, and seal friction power is bigger, safeguards problems such as frequent.Under the borehole pressure effect, oil gas outwards unloads leakage along the gap of polished rod and packing, and the gap is big more, and wastage is big more.The polished rod eccentric wear becomes big with the sealing difficulty that rocks well.Because the elasticity of oil resistant rubber is limited, for preventing packing wearing and tearing back well head oil-gas leaking, the practice is to strengthen the thrust of packing usually, but acts on limitedly, has but increased energy consumption.
Existing on the other hand conventional packing box can't seal the non-smooth flexible sucker rod.
Summary of the invention
The purpose of this utility model is to provide that a kind of to solve the frictional resistance that existing packing box exists big, and leakage is many, and energy consumption is big, safeguards the non-smooth flexible rope corrugated pipe wellhead sealing device of problem such as frequent.
For reaching above-mentioned purpose, the concrete content of the utility model is:
A kind of non-smooth flexible rope corrugated pipe wellhead sealing device, be used for the pumpingh well wellhead assembly is sealed, be provided with ring gasket, telescopic rubber pipe, embrace pincers assembly and sucker rod, described telescopic rubber pipe is connected with the ring gasket lower end, sucker rod is established in middle part at telescopic rubber pipe, described armful of pincers assembly is located under the telescopic rubber pipe, is sleeved on the sucker rod; Described ring gasket is located at wellhead assembly top, is connected sealing with wellhead assembly, other parts hang under the wellhead assembly with oil pipe in.
Ring gasket and wellhead assembly be sealed into box cupling lock sealing or seal with screwed joint.
Wherein telescopic rubber pipe is a corrugated tubes, and the pressure-bearing support is housed in the corrugated tubes of projection.
Wherein the pressure-bearing support is the pressure-bearing spring.
Described armful of pincers assembly embraced pincers and embraced a pincers clamp nut by joint ring, armful pincers tapered sleeve, beam hanger and constitute.
Be provided with circular trough at an armful pincers tapered sleeve inwall, described joint ring is housed in circular trough, the effect of joint ring is the sealing sucker rod; Described beam hanger is embraced pincers and is located at the inside of embracing the pincers tapered sleeve, and beam hanger is embraced clamp and lived sucker rod, will embrace pincers assembly and sucker rod locking by reversing an armful pincers clamp nut.
Adopt above design, the utility model can reach following beneficial effect:
Non-smooth flexible rope corrugated pipe wellhead sealing device changes conventional packing box movable sealing in the past into static seal, has realized zero frictional resistance, zero leakage completely, and is energy-saving and cost-reducing, pollution-free; Rational in infrastructure firm, the variation that embodiment is installed makes its applicability strong, convenient and reliable; Simultaneously both can be used for sealing polished rod, also can be used for the sealed soft sucker rod; Maintenance free, long service life.
Description of drawings
Fig. 1: be the structure chart of the utility model non-smooth flexible rope corrugated pipe wellhead sealing device
Fig. 2: be the partial view of the utility model non-smooth flexible rope corrugated pipe wellhead sealing device.
Among the figure: 1. ring gasket, 2. telescopic rubber pipe, 3. the pressure-bearing support, 4. joint ring, 5. armful the pincers tapered sleeve, 6. beam hanger is embraced pincers, 7. armful is clamped clamp nut, 8. sucker rod, 9. wellhead assembly, 10. oil pipe.
The specific embodiment
Below the effect forming and can produce with regard to the structure of the utility model non-smooth flexible rope corrugated pipe wellhead sealing device, conjunction with figs. is described in detail as follows with preferred embodiment:
As shown in Figure 1, be the sectional drawing of the utility model non-smooth flexible rope corrugated pipe wellhead sealing device, the utility model has adopted multiple prioritization scheme, and it includes ring gasket 1, telescopic rubber pipe 2, embraces pincers assembly and sucker rod 8.
Described ring gasket 1 is located at wellhead assembly 9 tops, ring gasket 1 can adopt multiple mode to be connected sealing with wellhead assembly 9, (mainly according to on-the-spot wellhead assembly structure choice) such as not only available box cupling lock sealing but also available seals with screwed joint, non-smooth flexible rope corrugated pipe wellhead sealing device is hung under the wellhead assembly 9 and oil pipe 10 in.
Be connected with described telescopic rubber pipe 2 below the ring gasket 1, telescopic rubber pipe 2 is a corrugated tubes, pressure-bearing support 3 is housed in the corrugated tubes of projection, pressure-bearing support 3 opens support telescopic rubber pipe 2 and is corrugated, prevent that oil pipe 10 internal pressures from making the effect of telescopic rubber pipe 2 distortion, pressure-bearing support 3 is selected the pressure-bearing spring for use in the present embodiment; Be provided with sucker rod 8 in the middle part of telescopic rubber pipe 2, when down stroke, telescopic rubber pipe 2 is in extended state with sucker rod 8, and when upstroke, telescopic rubber pipe 2 shrinks with sucker rod 8 and restores to the original state.
As shown in Figure 2, described armful of pincers assembly is located under the telescopic rubber pipe 2, mainly embraced pincers 6 and embraced a pincers clamp nut 7 by joint ring 4, armful pincers tapered sleeve 5, beam hanger to constitute, and is sleeved on sucker rod 8 bottoms.Be provided with circular trough at armful pincers tapered sleeve 5 inwalls, described joint ring 4 is housed in circular trough, the effect of joint ring 4 is sealing sucker rods 8.Described beam hanger is embraced pincers 6 and is located at the inside of embracing pincers tapered sleeve 5, and beam hanger is embraced pincers 6 and clamped sucker rod 8, will embrace pincers assembly and sucker rod 8 lockings by reversing an armful pincers clamp nut 7.Embrace pincers tapered sleeve 5 and play the effect that connects sucker rod 8, embraces pincers assembly and non-smooth flexible rope corrugated pipe wellhead sealing device.
The effect of embracing the pincers assembly of above-mentioned non-smooth flexible rope corrugated pipe wellhead sealing device is to connect and fixing sucker rod 8, make beam hanger embrace pincers 6 by a rotation armful pincers clamp nut 7 and tightly pin sucker rod, then drive flexible packing element when sucker rod is reciprocating together and carry out stretching and contraction, reach the static seal effect.
The utility model adopts above-mentioned design, change static seal into by the stretching of telescopic rubber pipe 2 and the movable sealing form of shrinking with conventional packing box, it is little and leakage is big fundamentally to have solved frictional resistance that conventional packing box exists, miss little and problem that frictional resistance is big and energy consumption is big, really realized zero frictional resistance, zero leakage by double seal (being ring gasket 1 and joint ring 4) again.Simultaneously non-smooth flexible rope corrugated pipe wellhead sealing device is applied widely, both can be used for sealing polished rod, also can be used for non-light face sealed soft bar (only need to add two to the rigidity box cupling in the middle of flexible rod, utilize embrace a pincers assembly tighten box cupling and get final product).
Though the utility model is described by previous embodiment, but still can change its form and details, make not breaking away under the spirit of the present utility model.Aforementioned is the most rational using method of the utility model, one of the mode that can specifically implement for the utility model only, but not as limit.
Claims (8)
1, a kind of non-smooth flexible rope corrugated pipe wellhead sealing device, be used for the pumpingh well wellhead assembly is sealed, it is characterized in that, be provided with ring gasket, telescopic rubber pipe, embrace pincers assembly and sucker rod, described telescopic rubber pipe is connected with the ring gasket lower end, sucker rod is established in middle part at telescopic rubber pipe, and described armful of pincers assembly is located under the telescopic rubber pipe, is sleeved on the sucker rod; Described ring gasket is located at wellhead assembly top, is connected sealing with wellhead assembly, other parts hang under the wellhead assembly with oil pipe in.
2, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 1 is characterized in that, ring gasket and wellhead assembly be sealed into box cupling lock sealing or seal with screwed joint.
3, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 1 or 2 is characterized in that, wherein telescopic rubber pipe is a corrugated tubes, and the pressure-bearing support is housed in the corrugated tubes of projection.
4, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 3 is characterized in that, wherein the pressure-bearing support is the pressure-bearing spring.
5, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 1 or 2 is characterized in that, described armful of pincers assembly embraced pincers and embraced a pincers clamp nut by joint ring, armful pincers tapered sleeve, beam hanger and constitute.
6, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 5 is characterized in that, is provided with circular trough at an armful pincers tapered sleeve inwall, and described joint ring is housed in circular trough; Described beam hanger is embraced pincers and is located at the inside of embracing the pincers tapered sleeve, and beam hanger is embraced clamp and lived sucker rod, will embrace pincers assembly and sucker rod locking by reversing an armful pincers clamp nut.
7, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 3 is characterized in that, described armful of pincers assembly mainly embraced pincers and embraced a pincers clamp nut by joint ring, armful pincers tapered sleeve, beam hanger and constitute.
8, non-smooth flexible rope corrugated pipe wellhead sealing device as claimed in claim 7 is characterized in that, is provided with circular trough at an armful pincers tapered sleeve inwall, and described joint ring is housed in circular trough; Described beam hanger is embraced pincers and is located at the inside of embracing the pincers tapered sleeve, and beam hanger is embraced clamp and lived sucker rod, will embrace pincers assembly and sucker rod locking by reversing an armful pincers clamp nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201096675U CN201246132Y (en) | 2008-08-06 | 2008-08-06 | Non-smooth surface flexible rope corrugated pipe well head seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201096675U CN201246132Y (en) | 2008-08-06 | 2008-08-06 | Non-smooth surface flexible rope corrugated pipe well head seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246132Y true CN201246132Y (en) | 2009-05-27 |
Family
ID=40729953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201096675U Expired - Lifetime CN201246132Y (en) | 2008-08-06 | 2008-08-06 | Non-smooth surface flexible rope corrugated pipe well head seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246132Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644148B (en) * | 2008-08-06 | 2013-01-16 | 大庆油田有限责任公司 | Non-smooth flexible rope corrugated pipe wellhead sealing device |
-
2008
- 2008-08-06 CN CNU2008201096675U patent/CN201246132Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644148B (en) * | 2008-08-06 | 2013-01-16 | 大庆油田有限责任公司 | Non-smooth flexible rope corrugated pipe wellhead sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090527 Effective date of abandoning: 20080806 |
|
| RGAV | Abandon patent right to avoid regrant |