CN2830635Y - Automatic deflection regulating sealing device of hot extracting polished rod for heavy oil - Google Patents
Automatic deflection regulating sealing device of hot extracting polished rod for heavy oil Download PDFInfo
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- CN2830635Y CN2830635Y CN 200520087030 CN200520087030U CN2830635Y CN 2830635 Y CN2830635 Y CN 2830635Y CN 200520087030 CN200520087030 CN 200520087030 CN 200520087030 U CN200520087030 U CN 200520087030U CN 2830635 Y CN2830635 Y CN 2830635Y
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- packing
- polished rod
- automatic deflection
- oil pumping
- deflection adjusting
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Abstract
The utility model relates to an automatic deflection adjusting sealing device of hot extracting oil pumping polished rod for thick oil, which belongs to the technical field of a seal for an oil pumping well head. The sealing device comprises six parts, which orderly are a polished rod protecting part, a packing sealing part, a polished rod centralizing part, an automatic deflection adjusting part, and a theft and unloading protecting part and packing debris filtrating part from top to bottom, wherein the automatic deflection adjusting part is composed of a ball head, a ball head seat and a ball head cover, and installed at the outside of a polished rod centralizing sleeve and a packing debris filtering cover; the packing sealing part is composed of a spiral packing, a packing box body, a packing pressing cap and a pressing pad, the spiral packing is tightly attached on an oil pumping polished rod, the packing box body is out of the packing and the packing pressing cap and the pressing pad are on the top part of the packing sealing part. The parts are connected with each other by screw threads. The utility model has the advantages that the sealing device has the function of automatically adjusting deflection, the oil pumping polished rod can be centralized in a follow-up mode, the deflective abrasion of the packing can be avoided, the abrasion of the polished rod is lightened, and the service lives of the packing and the polished rod are prolonged; the axial pressing force of the packing can be adjusted at any time, and the sealing effect is good; the old packing needs not to be taken out, the new packing can be continuously added and the utility model has high temperature resistance. The utility model is suitable for the hot extraction of the thick oil and various oil pumping well heads.
Description
(1) technical field
The utility model relates to the mouth of pumped oil well technical field of sealing technology, especially the great occasion of thick oil thermal production well mouth sealing difficulty.It particularly is a kind of heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer.
(2) background technology
Each oil field is some heavy oil wells all, because the crude oil in the oil reservoir of down-hole is very thick, viscosity is very high, and is mobile very poor, can't utilize oil well pump directly to be extracted into the ground well head from the down-hole, so must be called " heavy crude heat extraction " to the oil pumping of thick oil underground well limit heating edge.Usually the mode of heating of usefulness is hot-water flooding, steam injection, electrical heating etc.Because it is higher to be heated the crude oil temperature of dilution, general 50～70 ℃ of its well head outlet temperature, electrical heating oil pumping polish rod temperature can reach 80 ℃, and is more easy to wear after the well head sealed packing is heated.If oil pumping polish rod and sealing device decentraction, existing off-centre has inclination again, and then the packing wearing and tearing are faster, even also more serious to the wearing and tearing of polished rod.So just change packing more continually, both consumed a large amount of artificial and properties, have a strong impact on crude output again because of the stop pumping time is long.According to preliminary investigation, the heavy crude heat extraction mouth of pumped oil well polished rod seal of each oil field more than 80% is bad at present, serious seepage, and thorn spray phenomenon also happens occasionally, and causes oil well stopping production, well site pollution in wide area sometimes.Therefore, the thick oil thermal production well mouth polish rod sealing problem has become the difficult problem of each oilfield technology tackling key problem and the emphasis of autonomous innovation.Patent documentation by retrieval be used for the polish rod seal device pieces of writing existing up to a hundred of non-heavy oil wells, but the polish rod seal device that can be used for the heavy crude heat extraction mouth of pumped oil well has only two pieces, and its patent No. is 90215647.0 and 01260289.2.Its architectural feature all has differently significantly with the utility model, and function is also less.
(3) summary of the invention
The purpose of this utility model just is to provide that a kind of structure is unusual, sealing performance is better, the more heavy crude heat extraction oil pumping polish rod of function automatic deflection adjusting sealer.Better solve the thick oil thermal production well mouth polish rod sealing problem.
Above-mentioned purpose is realized by following technical proposals:
The sealing device comprises that automatic deflection adjusting part, polished rod set upright protection part, packing_seal part, packing chip filtration fraction and the antitheft part of unloading.It is characterized in that polished rod is set upright the protection part and is divided into polished rod protective sleeve and polished rod supporting positive cover two parts again.Be polished rod protective sleeve, packing_seal part, polished rod supporting positive cover, automatic deflection adjusting part, antitheft screw and the packing chip filter mantle of unloading from top to bottom successively.Automatic deflection adjusting wherein partly is contained in the outside of polished rod supporting positive cover and packing chip filter mantle, and the antitheft screw that unloads is contained in automatic deflection adjusting outside partly.Packing_seal part wherein is made up of the packing of being close to polished rod, the packing box body of packing outside, the packing pressure cap and the packing pressure pad of upper top.Automatic deflection adjusting part wherein is made up of bulb, ball cup and bulb lid.The packing box upper part of body is connected with the packing pressure cap with engage thread, and the bottom of packing box body connects in bulb with engage thread.The bulb lid of bulb outside is connected with ball cup with engage thread.The bottom of ball cup is connected with oil pipe with engage thread.Packing chip filter mantle directly hangs over the upper port of oil pipe.
The polished rod protective sleeve that above-mentioned polished rod is set upright the protection part is cone shape, and is up-thin-low-thick, synthetic by two lobe splits.There are annular concave platform rank in its outer garden, upper end.Select nylon or other nonmetals manufacturing for use.
The polished rod supporting positive cover that above-mentioned polished rod is set upright the protection part is cone shape, and is upper coarse and lower fine, synthetic by two lobe splits.Its inner chamber and oil pumping polish rod match, uniform 4～8 axial semi-cylindrical grooves on its inwall, and its upper port is a taper seat.Select nylon or other nonmetals manufacturing for use.
The bulb Lower Half of above-mentioned automatic deflection adjusting part is spherical, and the first half is cylindrical and external screw thread is arranged.Its inner chamber is taper seat, and is upper coarse and lower fine.Its lower port is the plane and an annular convex step is arranged.
The packing of above-mentioned packing_seal part has two parts, and top is cylindrical Screw disk-seal tube, and the bottom is the tapered auger packing.
The packing box body of above-mentioned packing_seal part is welded by two parts processing.Its top is divided into cylindrical, and there is external screw thread the upper part, and some gingival cyst of mucous gland in the newborn buttons are arranged on its inwall, and its inner chamber bottom is divided into taper seat.Lower endcaps of its lower port place welding, the internal thread that matches with bulb is arranged at the bottom of lower endcaps, and the antitheft radial screw bore of unloading screw of installation is arranged.
Above-mentioned packing chip filter mantle is a round tube shape, and is synthetic by two lobe splits.Its upper end cylindrical has an annular outer step, and its lower end inner chamber has an annular convex step, uniform some axial little oilholes on the convex step, uniform some radially drainings hole, its middle and lower part.Its inner chamber is packing chip storage chamber.
There are many places that " O " RunddichtringO is installed between the bulb external surface of above-mentioned automatic deflection adjusting part and ball cup and the bulb lid, " O " RunddichtringO is installed between the last top of bulb and the packing box body lower end.
The major advantage of this sealer is: have the oblique function of automatic deflection adjusting, when oil pumping polish rod pumps, can servo-actuated set upright, alleviate polished rod greatly to the wearing and tearing to polished rod of the wearing and tearing of packing and sealing device, prolong the application life of packing and polished rod greatly; Since used special packing, high temperature resistant, self-lubricating, friction factor is low, and the axial pressing force of packing is adjustable at any time, and packing tightly is posted on the polished rod, so sealing effectiveness is fine; Old packing no longer takes out and abandons, but advances continuously downwards, is utilized entirely, only need unload the packing pressure cap of upper end, from the upper port helical form packing of packing into continuously, has both saved a large amount of packings, significantly reduces the stop pumping time again, helps voluminous crude oil; Owing to prevented the eccentric wear problem, and the friction factor on packing surface is very low, so reduced the load of oil pumper, can save a large amount of electric energy; Because good sealing effect, no longer leak crude oil, so the unusual clean hygiene in well site is no longer wasted crude oil and contaminated environment from polished rod; Owing to increased packing chip filter mantle, the packing chip no longer goes out well head with crude oil and stops up unidirectional draining valve; Owing to be provided with the antitheft screw that unloads, can prevent that the lawless person from dismantling stolen without authorization.As seen its function is more.The sealing device is applicable to that not only the heavy crude heat extraction oil pumping polish rod seals and automatic deflection adjusting is oblique, and is applicable to other all kinds of mouth of pumped oil well.
(4) description of drawings
Accompanying drawing 1 is that overall structure of the present utility model is partly cutd open schematic diagram.
Accompanying drawing 2 is A-A sectional schematic diagrams of Fig. 1.
Accompanying drawing 3 is B-B sectional schematic diagrams of Fig. 1.
(5) specific embodiment
Embodiment of accompanying drawings:
In the accompanying drawing 1, the 1st, oil pipe, the 2nd, oil pumping polish rod; the 3rd, packing chip filter mantle, the 4th, ball cup, the 5, the 13rd, the antitheft screw that unloads; 6, the 8,9,10, the 14th, " O " RunddichtringO, the 7th, bulb lid, the 11st, polished rod supporting positive cover; the 12nd, bulb, the 15th, packing box body lower endcaps, the 16th, tapered auger packing; the 17th, packing body, the 18th, cylindrical Screw disk-seal tube, the 19th, polished rod protective sleeve; the 20th, packing pressure pad, the 21st, packing pressure cap.C is a packing chip storage chamber, and D is the draining hole, and E is an axial semi-cylindrical groove uniform on polished rod supporting positive cover 11 inwalls.
By shown in Figure 1, the sealing device comprises that automatic deflection adjusting part, polished rod set upright protection part, packing_seal part, packing chip filtration fraction and the antitheft part of unloading.Polished rod is set upright the protection part and is divided into polished rod protective sleeve 19 and polished rod supporting positive cover 11 two parts again.Be polished rod protective sleeve 19, packing_seal part, polished rod supporting positive cover 11, automatic deflection adjusting part, antitheft screw 13,5 and the packing chip filter mantle 3 of unloading from top to bottom successively.Automatic deflection adjusting wherein partly is contained in the outside of polished rod supporting positive cover 11 and packing chip filter mantle 3, and the antitheft screw 5,13 that unloads is contained in automatic deflection adjusting outside partly.Packing_seal part wherein is made up of the packing 16 and 18 of being close to oil pumping polish rod 2, the packing box body 17 of packing outside, the packing pressure cap 21 and the packing pressure pad 20 of upper top.Automatic deflection adjusting part wherein is made up of bulb 12, ball cup 4 and bulb lid 7.The top of packing box body 17 is connected with packing pressure cap 21 with engage thread, and the bottom of packing box body 17 is connected with bulb 12 with engage thread.The bulb lid 7 usefulness engage thread of bulb 12 outsides are connected with ball cup 4.The bottom of ball cup 4 is connected with oil pipe 1 with engage thread.Packing chip filter mantle 3 directly hangs over the upper port of oil pipe 1.
Shown in Fig. 1,2, polished rod protective sleeve 19 is cone shape, and is up-thin-low-thick, synthetic by two lobe splits.There are annular concave platform rank in its outer garden, upper end.
Shown in Fig. 1,3, polished rod supporting positive cover 11 is cone shape, and is upper coarse and lower fine, has two lobe splits synthetic.Its inner chamber and oil pumping polish rod 2 match, uniform 4～8 axial semi-cylindrical groove E on its inwall, and its upper port is a taper seat.
By shown in Figure 1, bulb 12 Lower Halves are spherical, and the first half is cylindrical and external screw thread is arranged, and its inner chamber is taper seat, and is upper coarse and lower fine, and its lower port is the plane and an annular convex step is arranged.Top packing 18 is cylindrical Screw disk-seal tube, and bottom packing 16 is the tapered auger packing.Packing box body 17 is cylindrical, and there is external screw thread its upper end, and some gingival cyst of mucous gland in the newborn buttons are arranged on its inwall, and its inner chamber bottom is a taper seat, lower endcaps 15 of its lower port place welding.The internal thread that matches with bulb 12 is arranged at the bottom of lower endcaps 15, and the antitheft radial screw bore of unloading screw 13 of installation is arranged.Packing chip filter mantle 3 is a round tube shape, and is synthetic by two lobe splits.Its upper end cylindrical has an annular outer step, and its lower end inner chamber has an annular convex step, uniform some axial little oilholes on the convex step, and the uniform some radially draining hole D in its middle and lower part, its inner chamber C is packing chip storage chamber." O " RunddichtringO 6,8,9,10 is installed between the external surface of bulb 12 and ball seat 4 and the spherical cap 7, " O " RunddichtringO 14 is installed between the last top of bulb 12 and packing box body 17 lower ends.
Shown in Fig. 1,2,3, the polished rod protective sleeve 19 on top mainly is that oil pumping polish rod 2 is shielded, and alleviates its wearing and tearing as far as possible, prolongs its application life, prevents that oil pumping from taking place by bar 2 break-off accidents, also has certain centralizing function simultaneously.The polished rod supporting positive cover 11 of bottom and the universal ball end of the outside 12 common servo-actuated centralizing functions that rise; can adjust and eliminate of the eccentric and inclination of sealing device automatically for oil pumping polish rod 2; prevent eccentric wear packing 16 and 18; prolong packing application life; avoid crude oil to leak at well head, polished rod supporting positive cover 11 also has the certain protection effect to oil pumping polish rod 2 simultaneously.Because sealed packing 16 and 18 is close to oil pumping polish rod 2, can be high temperature resistant, and many places are provided with " O " RunddichtringO 6,8,9,10,14, under the crude oil temperature condition with higher, still can keep good sealing.The ingenious combination that above-mentioned sealing and automatic deflection adjusting are set upright is exactly the most basic original innovation part of the utility model.
Claims (8)
1. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer; comprise the automatic deflection adjusting part; polished rod is set upright the protection part; the packing_seal part; packing chip filtration fraction and the antitheft part of unloading; it is characterized in that polished rod sets upright protection part and be divided into polished rod protective sleeve (19) and polished rod supporting positive cover (11) two parts again; be polished rod protective sleeve (19) from top to bottom successively; the packing_seal part; polished rod supporting positive cover (11); the automatic deflection adjusting part; the antitheft screw (13) that unloads; (5) and packing chip filter mantle (3); automatic deflection adjusting wherein partly is contained in the outside of polished rod supporting positive cover (11) and packing chip filter mantle (3); the antitheft screw (5) that unloads; (13) be contained in automatic deflection adjusting part outside; packing_seal part wherein is by the packing of being close to oil pumping polish rod (2) (16) and (18); the packing box body (17) of packing outside; the packing pressure cap (21) of upper top and packing pressure pad (20) are formed; automatic deflection adjusting part wherein is by bulb (12); ball cup (4) and bulb lid (7) are formed; the top of packing box body (17) is connected with packing pressure cap (21) with engage thread; the bottom of packing box body (17) is connected with bulb (12) with engage thread; the bulb lid (7) of bulb (12) outside is connected with ball cup (4) with engage thread; the bottom of ball cup (4) is connected with oil pipe (1) with engage thread, and packing chip filter mantle (3) directly hangs over the upper port of oil pipe (1).
2. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1 is characterized in that polished rod protective sleeve (19) is cone shape, and is up-thin-low-thick, synthetic by two lobe splits, on its upper end cylindrical annular concave platform rank arranged.
3. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1, it is characterized in that polished rod supporting positive cover (11) is a cone shape, upper coarse and lower fine, synthetic by two lobe splits, its inner chamber and oil pumping polish rod (2) match, uniform 4～8 axial semi-cylindrical grooves (E) on its inwall, its upper port is a taper seat.
4. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1, it is characterized in that bulb (12) Lower Half for spherical, the first half is cylindrical and external screw thread is arranged that its inner chamber is a taper seat, upper coarse and lower fine, its lower port is the plane and an annular convex step is arranged.
5. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1 is characterized in that top packing (18) is cylindrical Screw disk-seal tube, and bottom packing (16) is the tapered auger packing.
6. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1, it is characterized in that packing box body (17) is for cylindrical, there is external screw thread its upper end, some gingival cyst of mucous gland in the newborn buttons are arranged on its inwall, its inner chamber bottom is a taper seat, its lower port place welding lower endcaps (15), the internal thread that matches with bulb (12) is arranged at the bottom of lower endcaps (15), and the antitheft radial screw bore of unloading screw (13) of installation is arranged.
7. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1, it is characterized in that packing chip filter mantle (3) is a round tube shape, synthetic by two lobe splits, its upper end cylindrical has an annular outer step, its lower end inner chamber has an annular convex step, uniform some axial little oilholes on the convex step, uniform some radially drainings holes, its middle and lower part (D), its inner chamber (C) is packing chip storage chamber.
8. heavy crude heat extraction oil pumping polish rod automatic deflection adjusting sealer according to claim 1, it is characterized in that " O " RunddichtringO (6), (8), (9), (10) are installed between the external surface of bulb (12) and ball seat (4) and the bulb lid (7) installation " O " RunddichtringO (14) between the last top of bulb (12) and packing box body (17) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087030 CN2830635Y (en) | 2005-09-06 | 2005-09-06 | Automatic deflection regulating sealing device of hot extracting polished rod for heavy oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087030 CN2830635Y (en) | 2005-09-06 | 2005-09-06 | Automatic deflection regulating sealing device of hot extracting polished rod for heavy oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2830635Y true CN2830635Y (en) | 2006-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087030 Expired - Fee Related CN2830635Y (en) | 2005-09-06 | 2005-09-06 | Automatic deflection regulating sealing device of hot extracting polished rod for heavy oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2830635Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678081A (en) * | 2012-05-18 | 2012-09-19 | 中国石油天然气股份有限公司 | Retractable packing box capable of adding and taking packing without tool |
| CN103883277A (en) * | 2014-04-01 | 2014-06-25 | 中国海洋石油总公司 | Thermal recovery seal assembly |
| CN109236224A (en) * | 2018-09-19 | 2019-01-18 | 陕西百豪科技发展有限责任公司 | A kind of anti-dry grinding polished rod seal box of floating type two-stage sealing |
-
2005
- 2005-09-06 CN CN 200520087030 patent/CN2830635Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678081A (en) * | 2012-05-18 | 2012-09-19 | 中国石油天然气股份有限公司 | Retractable packing box capable of adding and taking packing without tool |
| CN103883277A (en) * | 2014-04-01 | 2014-06-25 | 中国海洋石油总公司 | Thermal recovery seal assembly |
| CN103883277B (en) * | 2014-04-01 | 2016-08-17 | 中国海洋石油总公司 | A kind of thermal recovery black box |
| CN109236224A (en) * | 2018-09-19 | 2019-01-18 | 陕西百豪科技发展有限责任公司 | A kind of anti-dry grinding polished rod seal box of floating type two-stage sealing |
| CN109236224B (en) * | 2018-09-19 | 2023-08-15 | 陕西百豪科技发展有限责任公司 | Floating type double-stage sealing dry-grinding-preventing polish rod sealing box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061025 Termination date: 20130906 |