CN203626681U - Single-tube wellhead device for thermal recovery with pressure - Google Patents
Single-tube wellhead device for thermal recovery with pressure Download PDFInfo
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- CN203626681U CN203626681U CN201320536303.6U CN201320536303U CN203626681U CN 203626681 U CN203626681 U CN 203626681U CN 201320536303 U CN201320536303 U CN 201320536303U CN 203626681 U CN203626681 U CN 203626681U
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Abstract
The utility model relaters to the technical field of wellhead equipment for operations with pressure, in particular to a single-tube wellhead device for thermal recovery with pressure. The single-tube wellhead device for thermal recovery with pressure comprises a casing flange, a large cross, a tube-hung flange, a reducing joint, a master gate valve, and an equal-diameter small cross. The casing flange, the large cross, the tube-hung flange, the reducing joint, the master gate valve and the equal-diameter small cross are fixed sequentially from bottom to top. A mandrel tubing hanger is disposed inside the tube-hung flange. A limit projection is fixed to the outer side of the middle of the mandrel tubing hanger. The tube-hung flange is provided with at least two radial positioning holes above the limit projection. A jackscrew locking seal capable of blocking the limit projection is fixedly disposed inside each radial positioning hole. The tube-hung flange is provided with a limit inside projection below the limit projection. The single-tube wellhead device for thermal recovery with pressure is reasonable and compact in structure and convenient to use; during wellhead operations with pressure, good sealing performance can be guaranteed and the sealing performance at high temperature can be met.
Description
Technical field
the utility model relates to Operating Pressure inlet device technical field, is a kind of single tube Operating Pressure thermal recovery well head device.
Background technology
along with the development of underground work technology and perfect, adopt the well workover mode of Operating Pressure to become the development trend of following underground work, particularly, for the hole condition that cannot implement to control by kill job as fire flood well and SAGD steam injection well etc., Operating Pressure highlights its superiority and necessity.The production tree four-way of Oil Field application is at present because the inconsistent reason of its vertical latus rectum and bypass footpath causes implementing polished rod seal, and the boll-weevil hanger that the applied thermal recovery well head device of Oil Field adopts is often pipe hanger flange suspension type oil pipe, in addition, the mandrel type oil pipe suspension structure of conventional application can not meet seal request under worst hot case, and existing well head hot extractor is directly directly suspended on tubing hanger pipe nipple in reducing joint, is difficult to meet seal request in wellheadpressure operation process.
Summary of the invention
the utility model provides a kind of single tube Operating Pressure thermal recovery well head device, overcome the deficiency of above-mentioned prior art, it can effectively solve sealing difficulty, the not good problem of worst hot case lower seal performance in the Operating Pressure process that existing thermal recovery well head device exists in actual use.
the technical solution of the utility model realizes by following measures: a kind of single tube Operating Pressure thermal recovery well head device, comprises casing flange, big four, pipe hanger flange, reducing joint, total gate valve and isometrical little four-way, casing flange, big four, pipe hanger flange, reducing joint, total gate valve and isometrical little four-way are fixed together from bottom to top successively, there is mandrel type boll-weevil hanger in pipe hanger flange inner side, be fixed with positive stop lug boss in outside, mandrel type boll-weevil hanger middle part, on the pipe hanger flange above positive stop lug boss, there is the radial location hole that is no less than two, in radial location hole, be installed with the jackscrew lock sealing device that can block positive stop lug boss, the inner side limited location inner convex platform of the pipe hanger flange below positive stop lug boss, the Wei Nei inclined-plane, upper surface of spacing inner convex platform, between interior inclined-plane and mandrel type boll-weevil hanger, be fixed with metallic packing ring, be fixed with tubing hanger pipe nipple in the lower inside of mandrel type boll-weevil hanger, between the upper end of pipe hanger flange and the lower end of reducing joint, be fixed with the ring gasket together with being no less than, between the upper end of mandrel type boll-weevil hanger and the lower end of reducing joint, be fixed with the ring gasket together with being no less than, between the lower end of pipe hanger flange and the upper end of big four, be fixed with the ring gasket together with being no less than, between the lower end of big four and the upper end of casing flange, be fixed with the ring gasket together with being no less than.
the further optimization and/or improvements to above-mentioned utility model technical scheme below:
above-mentioned jackscrew lock sealing device can comprise jackscrew, airtight and watertight padding and mounting head; Radial location hole is interior narrow outer wide radial location hole, the inner of jackscrew is positioned at the inner side of the pipe hanger flange of positive stop lug boss top, between jackscrew and the middle part in radial location hole, be fixed with airtight and watertight padding, mounting head is fixed in radial location hole by screw thread, and the inner of mounting head and the outer end of airtight and watertight padding are fitted together.
can there be ramp outside lower match with the inner of jackscrew interior the above-mentioned upper end at positive stop lug boss, has interior lower outside upper lower inclined plane in the lower end of positive stop lug boss.
above-mentionedly can be fixed with locking nut in mandrel type boll-weevil hanger middle part outside, the top of locking nut holds out against on the bottom of metallic packing ring.
the upper end of above-mentioned casing flange can be fixedly installed togather and be communicated by screw bolt and nut with the lower end of big four, the upper end of big four is fixedly installed togather and is communicated by screw bolt and nut with the lower end of pipe hanger flange, the upper end of pipe hanger flange is fixedly installed togather and is communicated by screw bolt and nut with the lower end of reducing joint, the upper end of reducing joint and the lower end of total gate valve are fixedly installed togather by screw bolt and nut, are fixed with tubing hanger pipe nipple in the lower inside of mandrel type boll-weevil hanger by screw thread.
the above-mentioned left end at big four and right-hand member can be installed with respectively the first gate valve and the second gate valve, are installed with respectively the 3rd gate valve, the 4th gate valve and the 5th gate valve in left end, right-hand member and the upper end of isometrical little four-way.
the utility model reasonable and compact in structure, easy to use, it,, carrying out in the process of wellheadpressure operation, has the advantages that can guarantee good sealing performance and meet the sealing performance under worst hot case.
Accompanying drawing explanation
the master that accompanying drawing 1 is the utility model most preferred embodiment looks broken section structural representation.
accompanying drawing 2 be in accompanying drawing 1 A to local structure for amplifying schematic diagram.
coding in accompanying drawing is respectively: 1 is casing flange, 2 is big four, 3 is pipe hanger flange, 4 is reducing joint, 5 is total gate valve, 6 is isometrical little four-way, 7 is mandrel type boll-weevil hanger, 8 is spacing inner convex platform, 9 is positive stop lug boss, 10 is ramp, 11 is lower inclined plane, 12 is ring gasket, 13 is metallic packing ring, 14 is screw bolt and nut, 15 is locking nut, 16 is the first gate valve, 17 is the second gate valve, 18 is the 3rd gate valve, 19 is the 4th gate valve, 20 is the 5th gate valve, 21 is tubing hanger pipe nipple, 22 is radial location hole, 23 is interior inclined-plane, 24 is jackscrew, 25 is airtight and watertight padding, 26 is mounting head.
The specific embodiment
the utility model is not subject to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is to be all described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. is to determine according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2, this single tube Operating Pressure thermal recovery well head device comprises casing flange 1, big four 2, pipe hanger flange 3, reducing joint 4, total gate valve 5 and isometrical little four-way 6, casing flange 1, big four 2, pipe hanger flange 3, reducing joint 4, total gate valve 5 and isometrical little four-way 6 are fixed together from bottom to top successively, there is mandrel type boll-weevil hanger 7 in pipe hanger flange 3 inner sides, be fixed with positive stop lug boss 9 in mandrel type boll-weevil hanger 7 outsides, middle part, on the pipe hanger flange 3 above positive stop lug boss 9, there is the radial location hole 22 that is no less than two, in radial location hole 22, be installed with the jackscrew lock sealing device that can block positive stop lug boss 9, the inner side limited location inner convex platform 8 of the pipe hanger flange 3 below positive stop lug boss 9, the Wei Nei inclined-plane, upper surface 23 of spacing inner convex platform 8, between interior inclined-plane 23 and mandrel type boll-weevil hanger 7, be fixed with metallic packing ring 13, be fixed with tubing hanger pipe nipple 21 in the lower inside of mandrel type boll-weevil hanger 7, between the upper end of pipe hanger flange 3 and the lower end of reducing joint 4, be fixed with the ring gasket 12 together with being no less than, between the upper end of mandrel type boll-weevil hanger 7 and the lower end of reducing joint 4, be fixed with the ring gasket 12 together with being no less than, between the lower end of pipe hanger flange 3 and the upper end of big four 2, be fixed with the ring gasket 12 together with being no less than, between the lower end of big four 2 and the upper end of casing flange 1, be fixed with the ring gasket 12 together with being no less than.The setting of pipe hanger flange 3 can improve sealing performance; The function of locking mandrel formula boll-weevil hanger 7 is played in the setting of jackscrew lock sealing device, and it does not bear borehole pressure in process of production, thus the possibility of having avoided medium to reveal from jackscrew lock sealing device, and ring gasket 12 can provide qualified sealing.
can according to actual needs, above-mentioned single tube Operating Pressure thermal recovery well head device be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, jackscrew lock sealing device comprises jackscrew 24, airtight and watertight padding 25 and mounting head 26; Radial location hole 22 is interior narrow outer wide radial location hole 22, the inner of jackscrew 24 is positioned at the inner side of the pipe hanger flange 3 of positive stop lug boss 9 tops, between jackscrew 24 and the middle part in radial location hole 22, be fixed with airtight and watertight padding 25, mounting head 26 is fixed in radial location hole 22 by screw thread, and the outer end of the inner of mounting head 26 and airtight and watertight padding 25 is fitted together.
as shown in accompanying drawing 1,2, there is ramp 10 outside lower match with the inner of jackscrew 24 interior in the upper end of positive stop lug boss 9, there is interior lower outside upper lower inclined plane 11 in the lower end of positive stop lug boss 9.The setting of lower inclined plane 11 can be further by stuck metallic packing ring 13 between pipe hanger flange 3 and mandrel type boll-weevil hanger 7, improved the sealing performance of metallic packing ring 13, guaranteed long-term reliability and the stability of the sealing performance in Operating Pressure process.
as shown in accompanying drawing 1,2, be fixed with locking nut 15 in mandrel type boll-weevil hanger 7 outsides, middle part, the top of locking nut 15 holds out against on the bottom of metallic packing ring 13.Arranging of locking nut 15 played spacing effect to metallic packing ring 13.
as shown in Figure 1, the upper end of casing flange 1 is fixedly installed togather and is communicated by screw bolt and nut 14 with the lower end of big four 2, the upper end of big four 2 is fixedly installed togather and is communicated by screw bolt and nut 14 with the lower end of pipe hanger flange 3, the upper end of pipe hanger flange 3 is fixedly installed togather and is communicated by screw bolt and nut 14 with the lower end of reducing joint 4, the lower end of the upper end of reducing joint 4 and total gate valve 5 is fixedly installed togather by screw bolt and nut 14, is fixed with tubing hanger pipe nipple 21 in the lower inside of mandrel type boll-weevil hanger 7 by screw thread.
as shown in accompanying drawing 1,2, be installed with respectively the first gate valve 16 and the second gate valve 17 at left end and the right-hand member of big four 2, be installed with respectively the 3rd gate valve 18, the 4th gate valve 19 and the 5th gate valve 20 in left end, right-hand member and the upper end of isometrical little four-way 6.
above technical characterictic has formed most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
the use procedure of the utility model most preferred embodiment: first, by the annular space of isometrical little four-way 6 shutoff polished rod sealer polished rods, then dismantle well head packing kit for thermal recovery, on the flange of isometrical little four-way 6 upper ends, sucker rod operation device under pressure is installed, complete after sucker rod Operating Pressure and oil pump plunger piston promote operation oil pipe is thrown to stifled operation, throw after stifled operation when completing, dismounting reducing joint 4 and with upper member, then oil pipe operation device under pressure is installed and is unclamped jackscrew lock sealing device in pipe hanger flange 3 upper ends, then carry out successively tubing string successively on propose operation and transfer operation, when tubing string is transferred after operation completes, by setting mandrel type boll-weevil hanger 7 in pipe hanger flange 3, tighten jackscrew lock sealing device, then dismantle oil pipe operation device under pressure, then in the upper end of mandrel type boll-weevil hanger 7, ring gasket 12 is installed, reducing joint 4 is finally installed successively and with upper member, the operation of resuming production.
Claims (10)
1. a single tube Operating Pressure thermal recovery well head device, is characterized in that comprising casing flange, big four, pipe hanger flange, reducing joint, total gate valve and isometrical little four-way, casing flange, big four, pipe hanger flange, reducing joint, total gate valve and isometrical little four-way are fixed together from bottom to top successively, there is mandrel type boll-weevil hanger in pipe hanger flange inner side, be fixed with positive stop lug boss in outside, mandrel type boll-weevil hanger middle part, on the pipe hanger flange above positive stop lug boss, there is the radial location hole that is no less than two, in radial location hole, be installed with the jackscrew lock sealing device that can block positive stop lug boss, the inner side limited location inner convex platform of the pipe hanger flange below positive stop lug boss, the Wei Nei inclined-plane, upper surface of spacing inner convex platform, between interior inclined-plane and mandrel type boll-weevil hanger, be fixed with metallic packing ring, be fixed with tubing hanger pipe nipple in the lower inside of mandrel type boll-weevil hanger, between the upper end of pipe hanger flange and the lower end of reducing joint, be fixed with the ring gasket together with being no less than, between the upper end of mandrel type boll-weevil hanger and the lower end of reducing joint, be fixed with the ring gasket together with being no less than, between the lower end of pipe hanger flange and the upper end of big four, be fixed with the ring gasket together with being no less than, between the lower end of big four and the upper end of casing flange, be fixed with the ring gasket together with being no less than.
2. single tube Operating Pressure thermal recovery well head device according to claim 1, is characterized in that jackscrew lock sealing device comprises jackscrew, airtight and watertight padding and mounting head; Radial location hole is interior narrow outer wide radial location hole, the inner of jackscrew is positioned at the inner side of the pipe hanger flange of positive stop lug boss top, between jackscrew and the middle part in radial location hole, be fixed with airtight and watertight padding, mounting head is fixed in radial location hole by screw thread, and the inner of mounting head and the outer end of airtight and watertight padding are fitted together.
3. single tube Operating Pressure thermal recovery well head device according to claim 2, is characterized in that there is the interior outside lower ramp matching with the inner of jackscrew the upper end of positive stop lug boss, has interior lower outside upper lower inclined plane in the lower end of positive stop lug boss.
4. according to the single tube Operating Pressure thermal recovery well head device described in claim 1 or 2 or 3, it is characterized in that outside, mandrel type boll-weevil hanger middle part is fixed with locking nut, the top of locking nut holds out against on the bottom of metallic packing ring.
5. according to the single tube Operating Pressure thermal recovery well head device described in claim 1 or 2 or 3, it is characterized in that the upper end of casing flange and the lower end of big four are fixedly installed togather and are communicated by screw bolt and nut, the upper end of big four is fixedly installed togather and is communicated by screw bolt and nut with the lower end of pipe hanger flange, the upper end of pipe hanger flange is fixedly installed togather and is communicated by screw bolt and nut with the lower end of reducing joint, the upper end of reducing joint and the lower end of total gate valve are fixedly installed togather by screw bolt and nut, lower inside at mandrel type boll-weevil hanger is fixed with tubing hanger pipe nipple by screw thread.
6. single tube Operating Pressure thermal recovery well head device according to claim 4, it is characterized in that the upper end of casing flange and the lower end of big four are fixedly installed togather and are communicated by screw bolt and nut, the upper end of big four is fixedly installed togather and is communicated by screw bolt and nut with the lower end of pipe hanger flange, the upper end of pipe hanger flange is fixedly installed togather and is communicated by screw bolt and nut with the lower end of reducing joint, the upper end of reducing joint and the lower end of total gate valve are fixedly installed togather by screw bolt and nut, lower inside at mandrel type boll-weevil hanger is fixed with tubing hanger pipe nipple by screw thread.
7. according to the single tube Operating Pressure thermal recovery well head device described in claim 1 or 2 or 3, the left end and the right-hand member that it is characterized in that big four are installed with respectively the first gate valve and the second gate valve, are installed with respectively the 3rd gate valve, the 4th gate valve and the 5th gate valve in left end, right-hand member and the upper end of isometrical little four-way.
8. single tube Operating Pressure thermal recovery well head device according to claim 4, the left end and the right-hand member that it is characterized in that big four are installed with respectively the first gate valve and the second gate valve, are installed with respectively the 3rd gate valve, the 4th gate valve and the 5th gate valve in left end, right-hand member and the upper end of isometrical little four-way.
9. single tube Operating Pressure thermal recovery well head device according to claim 5, the left end and the right-hand member that it is characterized in that big four are installed with respectively the first gate valve and the second gate valve, are installed with respectively the 3rd gate valve, the 4th gate valve and the 5th gate valve in left end, right-hand member and the upper end of isometrical little four-way.
10. single tube Operating Pressure thermal recovery well head device according to claim 6, the left end and the right-hand member that it is characterized in that big four are installed with respectively the first gate valve and the second gate valve, are installed with respectively the 3rd gate valve, the 4th gate valve and the 5th gate valve in left end, right-hand member and the upper end of isometrical little four-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536303.6U CN203626681U (en) | 2013-08-30 | 2013-08-30 | Single-tube wellhead device for thermal recovery with pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320536303.6U CN203626681U (en) | 2013-08-30 | 2013-08-30 | Single-tube wellhead device for thermal recovery with pressure |
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| Publication Number | Publication Date |
|---|---|
| CN203626681U true CN203626681U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320536303.6U Expired - Lifetime CN203626681U (en) | 2013-08-30 | 2013-08-30 | Single-tube wellhead device for thermal recovery with pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625973A (en) * | 2014-10-28 | 2016-06-01 | 中国石油天然气股份有限公司 | Wellhead sealing device for extracting oil |
| CN105735931A (en) * | 2014-12-11 | 2016-07-06 | 中国石油天然气股份有限公司 | Two-pipe thermal recovery wellhead device and two-pipe cross tee thereof |
| CN106194134A (en) * | 2015-05-07 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of note adopts no killing well well head operating procedure and the equipment of integration thermal recovery technology |
| CN109296339A (en) * | 2018-11-13 | 2019-02-01 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of the improvement structure and improved method of shale gas well plunger mining wellhead assembly |
-
2013
- 2013-08-30 CN CN201320536303.6U patent/CN203626681U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105625973A (en) * | 2014-10-28 | 2016-06-01 | 中国石油天然气股份有限公司 | Wellhead sealing device for extracting oil |
| CN105735931A (en) * | 2014-12-11 | 2016-07-06 | 中国石油天然气股份有限公司 | Two-pipe thermal recovery wellhead device and two-pipe cross tee thereof |
| CN106194134A (en) * | 2015-05-07 | 2016-12-07 | 中国石油化工股份有限公司 | A kind of note adopts no killing well well head operating procedure and the equipment of integration thermal recovery technology |
| CN109296339A (en) * | 2018-11-13 | 2019-02-01 | 中国石油化工股份有限公司江汉油田分公司石油工程技术研究院 | A kind of the improvement structure and improved method of shale gas well plunger mining wellhead assembly |
| CN109296339B (en) * | 2018-11-13 | 2024-03-19 | 中国石油化工股份有限公司 | Improved structure and improved method of shale gas well plunger drainage wellhead device |
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Granted publication date: 20140604 |
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