CN201448082U - Multifunctional sealer for polished rod - Google Patents
Multifunctional sealer for polished rod Download PDFInfo
- Publication number
- CN201448082U CN201448082U CN2009200338722U CN200920033872U CN201448082U CN 201448082 U CN201448082 U CN 201448082U CN 2009200338722 U CN2009200338722 U CN 2009200338722U CN 200920033872 U CN200920033872 U CN 200920033872U CN 201448082 U CN201448082 U CN 201448082U
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- CN
- China
- Prior art keywords
- primary seal
- blowout hookup
- spheroid
- pressure cap
- polish rod
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- 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.)
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Abstract
The utility model aims to design a multifunctional sealer for a polished rod of an oil extractor. The sealer is provided with a main sealing body positioned at the upper part, and a blowout prevention device used as temporary wellhead sealing oil vapor of a wellhead in the process of replacing sealing fillers in the main sealing body is connected to the lower part of the main sealing body. The sealer is shaped like a cross and connected with a general oil-extraction wellhead. The structure is compact, and the utilization and installation are convenient. The antiseptic treatment is adopted at the outer part, so that a normal outdoor and open-air operation is ensured. The device is installed in the position of a wellhead polished rod, a third-grade sealing structure is adopted, and a ball-adjusting angle and disc-pressing-type eccentric adjustment is utilized to achieve the effect that the center is automatically adjusted; therefore, the eccentric wear of the polished rod is prevented, and the maximum oil-vapor seal of the wellhead is ensured. The utility model completely solves the problem that the slop of a well and the oil extractor causes the eccentric wear, the seepage and the like.
Description
Technical field
The utility model belongs to the oil field equipment technical field, especially for the sealing device of oil-extractor polish-rod.
Background technology
Existing oil-extractor polish-rod adopts the conventional seals device.Blowout hookup is provided with separately, needs emptying when changing packing, and oil pumper installation, foundation deformation etc. cause that polished rod and well seat center disalignment cause the polished rod eccentric wear simultaneously, cause the seal rapid wear.
Summary of the invention
The utility model purpose is a kind of multifunctional oil-extractor polish-rod sealer of design, overcoming the long-term oil leakage phenomenon of oil-extractor polish-rod, and thoroughly solves the difficult problem that hole deviation causes polished rod eccentric wear and packing rapid wear, strengthens life of product.
Specifically, multifunctional polish rod sealing device has superposed primary seal body, is connected with the blowout hookup of the usefulness of the temporarily sealing oil gas of doing well head when changing airtight and watertight padding in the primary seal body under the primary seal body.
Be connected with primary seal and deviation correcting device in the blowout hookup bottom, primary seal and deviation correcting device are connected in production wellhead by lower connector.
Described primary seal body comprises pressure pad, pressure cap, sealed packing and sealing pedestal, and adopt the sealing pedestal of the seat of honour of blowout hookup as sealed packing, sealed packing places in the cannelure at the seat of honour, pressure pad be positioned on the sealed packing and with pressure cap with compress after the seat of honour is connected.Sealed packing is the trapezoid spiral structure, and the cannelure in the seat of honour adapts with envelope packing trapezoidal shape.
Described blowout hookup comprises the seat of honour and following housing that connects into, the secondary seal body is housed in housing, the external side of secondary seal has the slide block that horizontally slips in housing, the jackscrew that position, the adjusting slider left and right sides is arranged in the slide block outside, jackscrew is fixed on the blowout hookup pressure cap, and the blowout hookup pressure cap is screwed in the housing two ends.Blowout hookup pressure cap end is connected with the adjusting cap.
Described primary seal and deviation correcting device comprise the tuningout spheroid that the bottom is spherical in shape, following in tuningout spheroid top and the blowout hookup is connected, tuningout spheroid bottom places in the deviation correcting device and between is placed the primary seal filler, the spheroid pressure cap is housed outside deviation correcting device, and the deviation correcting device bottom is connected with lower connector.Spheroid pressure cap upper edge is inboard for suiting and the identical inclined-plane of spheroid
The utility model outward appearance is cross shape, connects with conventional production wellhead.Compact conformation, use and easy for installation.Outside employing preservative treatment guarantees open-air open-air normal operation.At the wellhead polish rod position this device is installed, is adopted three grades of hermetically-sealed constructions, use the eccentric adjustment of spheroid tuningout angle and press disc type,, prevent the polished rod eccentric wear, guaranteed the oil gas sealing of well head to greatest extent to reach the center of adjusting voluntarily.The utility model is solved difficult problems such as eccentric wear that hole deviation, oil pumper tilt to cause and seepage.
The utility model beneficial effect mainly comprises:
1, solve oil pumper installation, foundation deformation etc. and cause that polished rod and well seat center disalignment cause the polished rod eccentric wear, cause the seal rapid wear, overcome long-term oil leakage phenomenon, improve the oil effectively time, increase well yield, energy-saving and emission-reduction prevent the well site pollution.
2, this product structure is reasonable, and the level correction is at least 15 millimeters in any range, axially automatic deviation 20.But, automatic deviation correction.
3, it is anticorrosion that this product structure adopts integral body, increases standardization well site aesthetics, prolongs product 5-8 in application life doubly, reduces enterprise's cost of production.
Description of drawings
Figure is the utility model structural representation.
The specific embodiment
Provided the concrete enforcement structure of this multifunctional polish rod sealing device as figure.See that on the whole it has superposed primary seal body 1, be connected with the blowout hookup 2 of the usefulness of the temporarily sealing oil gas of doing well head when changing airtight and watertight padding in the primary seal body for 1 time at the primary seal body.Blowout hookup 2 bottoms are connected with primary seal and deviation correcting device 3, and primary seal and deviation correcting device 3 are connected in production wellhead by lower connector 4.
Primary seal body 1 comprises pressure pad 1-1, pressure cap 1-2, sealed packing 1-3 and sealing pedestal, and adopt the sealing pedestal of the seat of honour 2-1 of blowout hookup 2 as sealed packing 1-3, sealed packing 1-3 places in the cannelure of seat of honour 2-1, pressure pad 1-1 be positioned at that sealed packing 1-3 goes up and with pressure cap 1-2 with compress after seat of honour 2-1 is connected.Sealed packing 1-3 is the trapezoid spiral structure, and the cannelure in the 2-1 of the seat of honour adapts with envelope packing 1-3 trapezoidal shape.
Described blowout hookup 2 comprises the housing that a seat of honour 2-1 and a following 2-7 connect into, secondary seal body 2-2 is housed in housing, there is the slide block 2-6 that horizontally slips in the secondary seal body 2-2 outside in housing, the jackscrew 2-5 that position, the adjusting slider 2-6 left and right sides is arranged in the slide block 2-6 outside, jackscrew 2-5 is fixed on the blowout hookup pressure cap 2-5, and blowout hookup pressure cap 2-5 is screwed in the housing two ends.Blowout hookup pressure cap 2-5 end is connected with regulates cap 2-4.
Primary seal and deviation correcting device 3 comprise the tuningout spheroid 3-1 that the bottom is spherical in shape, tuningout spheroid 3-1 top is connected with a following 2-7 in the blowout hookup 2, tuningout spheroid 3-1 bottom places in the deviation correcting device 3-4 and between is placed primary seal filler 3-3, spheroid pressure cap 3-2 is housed outside deviation correcting device 3-4, and deviation correcting device 3-4 bottom is connected with lower connector 4.Spheroid pressure cap 3-2 upper edge is inboard for suiting and the identical inclined-plane of spheroid.
The utility model operating principle:
The production wellhead screwed connection of lower connector and oil well, to fix this device, oil pumping polish rod passes therethrough.Deviation correcting device is done the circumference translation in order to adjust the offset distance of polished rod and well head, makes polished rod and this device centres, to guarantee the sealing performance of circumference.The spheroid pressure cap in order to compress spherical tuningout, guarantees the adjustment of 360 ° of direction deviation angles.Blowout hookup and bottom tuningout screwed connection, with the top seal box be one, do the usefulness of the temporarily sealing oil gas of well head when changing airtight and watertight padding, when oil pumper drove the polished rod operate as normal, loose ends presses closer silk, and was inoperative.The top pressure cap presses pressure pad by rotation, circumference is carried out in airtight and watertight padding press, and makes it around polished rod, plays the oil gas sealing function.In oil pumping work, have only one, three grade of airtight and watertight padding and polished rod to do sliding-contact, play the circumferential sealing effect, the blowout prevention when secondary seal is used for safeguarding.In three grades of sealings, primary seal is positioned at the deviation correcting device position, contacts with polished rod, plays elementary sealing, three grades of bodies of primary seal when being sealed into operate as normal, and airtight and watertight padding wherein is the general trapezoid spiral packing in oil field.
This product can integral level move, deviator is set up in the bottom, loosening tuningout pressure cap, driving top moves as respective horizontal, in any range, move horizontally and reach 15 millimeters, oil pumper is tilted, polished rod that polished rod that foundation deformation causes and hole diameter center disalignment cause and oil pipe wearing and tearing, problems such as oil-pumping resistance is big are solved. and great advantage can make polished rod centering voluntarily, prevent eccentric wear. adopt the universal adjusting deviation device of bulb, multi-stage sealed composition is when polished rod and well head generation deflection, universal spheroid is tuningout centering voluntarily, loosening ball pressure cap during tuningout, deflection-regulating range 0--20.. guarantee that sealer and polished rod keep axiality, are guaranteeing under the non-leakage situation, torsion with minimum screws spherical tuningout pressure cap. when changing packing, do not need emptying, fasten preventer, make well head be in sealing state, can change the top packing rapidly, loosening then two ends valve rod opens preventer and can produce, and solved time-consuming that emptying brings, effort, problems such as pollution have improved economic benefit greatly.
Technical data:
1, this product can level be rectified a deviation 15 millimeters in any range.
2, multi-stage sealed withstand voltage, rated operating pressure 16MPa, 50--120 ℃ of heatproof working range.
3, adopt that bulb is universal adjusts a wage scale, radially tuningout 0--20.
4, use blowout hookup, do not need emptying, can change packing rapidly.
Claims (8)
1. multifunctional polish rod sealing device has superposed primary seal body (1), it is characterized in that being connected with under primary seal body (1) blowout hookup (2) of the usefulness of the temporarily sealing oil gas of doing well head when changing airtight and watertight padding in the primary seal body.
2. multifunctional polish rod sealing device according to claim 1, it is characterized in that blowout hookup (2) bottom is connected with primary seal and deviation correcting device (3), be connected with under primary seal and the deviation correcting device (3) be used for the production wellhead of oil well with the lower connector (4) that is connected.
3. multifunctional polish rod sealing device according to claim 1, it is characterized in that primary seal body (1) comprises pressure pad (1-1), pressure cap (1-2), sealed packing (1-3) and sealing pedestal, and adopt the sealing pedestal of the seat of honour (2-1) of blowout hookup (2) as sealed packing (1-3), sealed packing (1-3) places in the cannelure of the seat of honour (2-1), pressure pad (1-1) be positioned at that sealed packing (1-3) is gone up and with pressure cap (1-2) with compress after the seat of honour (2-1) is connected.
4. multifunctional polish rod sealing device according to claim 3 is characterized in that sealed packing (1-3) is the trapezoid spiral structure, and the cannelure in the seat of honour (2-1) adapts with envelope packing (1-3) trapezoidal shape.
5. multifunctional polish rod sealing device according to claim 1, it is characterized in that blowout hookup (2) comprises the seat of honour (2-1) and following the housing that (2-7) connects into, secondary seal body (2-2) is housed in housing, there is the slide block (2-6) that horizontally slips in secondary seal body (2-2) outside in housing, the jackscrew (2-5) that adjusting slider (2-6) position, the left and right sides is arranged in slide block (2-6) outside, jackscrew (2-5) is fixed on the blowout hookup pressure cap (2-5), and blowout hookup pressure cap (2-5) is screwed in the housing two ends.
6. multifunctional polish rod sealing device according to claim 5 is characterized in that blowout hookup pressure cap (2-5) end is connected with adjusting cap (2-4).
7. according to claim 2 or 5 described multifunctional polish rod sealing devices, it is characterized in that primary seal and deviation correcting device (3) comprise the tuningout spheroid (3-1) that the bottom is spherical in shape, tuningout spheroid (3-1) top is connected with following (2-7) in the blowout hookup (2), tuningout spheroid (3-1) bottom places in the deviation correcting device (3-4) and between is placed primary seal filler (3-3), spheroid pressure cap (3-2) is housed outside deviation correcting device (3-4), and deviation correcting device (3-4) bottom is connected with lower connector (4).
8. multifunctional polish rod sealing device according to claim 8 is characterized in that spheroid pressure cap (3-2) upper edge is inboard for suiting and the identical inclined-plane of spheroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200338722U CN201448082U (en) | 2009-07-13 | 2009-07-13 | Multifunctional sealer for polished rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200338722U CN201448082U (en) | 2009-07-13 | 2009-07-13 | Multifunctional sealer for polished rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448082U true CN201448082U (en) | 2010-05-05 |
Family
ID=42552797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200338722U Expired - Lifetime CN201448082U (en) | 2009-07-13 | 2009-07-13 | Multifunctional sealer for polished rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061705A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | High-temperature long-acting polish rod sealing device |
-
2009
- 2009-07-13 CN CN2009200338722U patent/CN201448082U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103061705A (en) * | 2013-01-28 | 2013-04-24 | 黄胜志 | High-temperature long-acting polish rod sealing device |
| CN103061705B (en) * | 2013-01-28 | 2016-06-15 | 黄胜志 | High-temperature and long-efficiency polish rod seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100505 |
|
| CX01 | Expiry of patent term |