CN207111032U - A kind of high temperature steam injection oil recovery triple seal blowout prevention box - Google Patents
A kind of high temperature steam injection oil recovery triple seal blowout prevention box Download PDFInfo
- Publication number
- CN207111032U CN207111032U CN201721080637.1U CN201721080637U CN207111032U CN 207111032 U CN207111032 U CN 207111032U CN 201721080637 U CN201721080637 U CN 201721080637U CN 207111032 U CN207111032 U CN 207111032U
- Authority
- CN
- China
- Prior art keywords
- packing box
- sealed
- cylinder block
- blowout prevention
- box
- 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 - Fee Related
Links
- 230000002265 prevention Effects 0.000 title claims abstract description 26
- 238000010793 Steam injection (oil industry) Methods 0.000 title claims abstract description 16
- 238000011084 recovery Methods 0.000 title claims abstract description 12
- 238000012856 packing Methods 0.000 claims abstract description 77
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005086 pumping Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009304 pastoral farming Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Sealing Devices (AREA)
- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of high temperature steam injection oil recovery triple seal blowout prevention box.It includes multiple revolution metallic part bolt connections and forms blowout prevention box main body, and the center is provided with a sucker rod polished rod；The top of blowout prevention box main body is packing box upper press cover, and the lower section bolt connection of packing box upper press cover has sealed cylinder block on packing box, and the underface of upper sealed pressing sleeve is packing box top soft seal component；The underface bolt connection of sealed cylinder block has a sealed cylinder block under packing box on packing box, and the lower section of lower sealed pressing sleeve is packing box bottom soft seal component, and the periphery of sealed cylinder block is provided with well head connection screw thread under packing box；The bottom of sealed cylinder block is provided with the metal hard-sealing face of a taper under packing box；The bottom of sucker rod polished rod is connected with a metal hard-sealing coupling type centrum, and the utility model is simple in construction, easy to use, is a kind of preferably high temperature steam injection oil recovery triple seal blowout prevention box.
Description
Technical field
The utility model belongs to technical field of petroleum machinery, and in particular to a kind of high temperature steam injection oil recovery triple seal blowout prevention
Box.
Background technology
In petroleum collection technical field, ground well head is not during high-temp thermal recovery high viscosity viscous crude, during steam soak
But HTHP during steam injection is born, still suffers from continual heat tracing in production process.Range of temperature is in 20-320
DEG C, pressure range is in 0-1.5MPa, and well head leakage, the steam phenomenon that leaks often occur, especially at wellhead blowout-preventing box
Become apparent.
During integrated thermal recovery is adopted using all-metal screw infusion, wellhead sealing mainly passes through wellhead packing box
Sealing rotates through circulation road to be sealed to well head.Such sealing is presently mainly close by polytetrafluoroethylene packing or graphite
Packing material sealing group is sealed, and advantage is the good sealing effect when temperature is less than under 1.5MPa states less than 100 DEG C, pressure,
But its shortcoming is polytetrafluoroethylene packing or graphite grazing packing seal group in nonmetallic materials soft seal, in wellhead temperature
When reaching 150-180 DEG C, it is in viscoelastic melt state easily to soften, when temperature is dropped to below solid-liquid temperature transition point in solid
State, shape is irrecoverable, loss of seal function；In addition, betted in 280-320 DEG C of temperature, pressure 1.5MPa high-temperature high-pressure states
During vapour, thorn leakage is more easy to, sealing can not be realized at blowout prevention box well.
For problem above, how by technological improvement, solve frequently to undergo high temperature using new sealing structure and mode
The sealing problem of wellhead blowout-preventing box is industry technical staff technical problem urgently to be resolved hurrily after high pressure.
The content of the invention
To realize above-mentioned technical functionality, the technical solution of the utility model is as follows：A kind of high temperature steam injection oil recovery triple seal
Blowout prevention box, it includes multiple revolution metallic part bolt connections and forms blowout prevention box main body, at the center of described blowout prevention box main body
It is provided with a sucker rod polished rod for being sealed, being moved up and down；The top of blowout prevention box main body is packing box upper press cover, packing
The lower section bolt connection of box upper press cover has sealed cylinder block on packing box, described packing box upper press cover and sealed cylinder block on packing box
Junction, sucker rod polished rod is provided with sealed pressing sleeve on a circle, the underface of described upper sealed pressing sleeve is on packing box
Portion's soft seal component；Lower sealing is provided with packing box in sealed cylinder block region, in its gap combined with sucker rod polished rod to press
Set, the periphery of described lower sealed pressing sleeve are provided with lower seal cartridge on itself and packing box in the gap of sealed cylinder block, on packing box
The underface bolt connection of sealed cylinder block has sealed cylinder block under packing box, and the lower section of described lower sealed pressing sleeve is packing box bottom
Soft seal component, described packing box bottom soft seal component extend to the middle part of sealed cylinder block under packing box；Described
The well head connection screw thread that the periphery of sealed cylinder block is provided with packing box and well head is fixed；The bottom of sealed cylinder block under described packing box
End is provided with the metal hard-sealing face of a taper；The bottom of described sucker rod polished rod is threaded with the gold of a metal material
The hard sealing coupling type cone of category, the upper surface of described metal hard-sealing coupling type cone is taper design, its taper and metal
Hard sealing surface matches.
Described is all by multiple graphite annulus for packing box top soft seal component and packing box bottom soft seal component
Under enumerate composition.
The beneficial effects of the utility model：The utility model designs more than, is carried using two-stage rotation pumping with one-level
Rise pumping to seal jointly, realize the three-level sealing structure of blowout prevention box：Two-stage nonmetallic materials soft seal adds one-level metal to gold
The hard sealing of category, when rotating swabbing production operation, packing box top soft seal component and packing box bottom soft seal component two-stage
Nonmetallic materials soft seal works；In steam injection heat tracing, the bottom metal hard-sealing coupling type cone and packing of sucker rod polished rod
The metal hard-sealing face percussion of the bottom taper of sealed cylinder block, which coincide, under box is in close contact, and not only good sealing effect, can also keep away
Exempt from influence of the HTHP to two level nonmetallic materials soft seal, play the effect of protection two level soft seal；Due to thermal process
In, the fluctuation of wellhead temperature pressure change is big, when separately working, three-level sealing collocation work, can efficiently solve steam injection and
HTHP is to nonmetallic airtight and watertight padding thermal deformation problem, secondary restorative, the reduction temperature of increase airtight and watertight padding during high temperature heat tracing
Degree, influence of the pressure to seal assembly secondary seal effect.To sum up, the utility model is simple in construction, easy to use, is a kind of reason
The high temperature steam injection oil recovery triple seal blowout prevention box thought.
Brief description of the drawings
The utility model shares accompanying drawing 2 and opened, wherein：
Fig. 1 is the utility model main structure diagram.
Fig. 2 is utility model works view.
In accompanying drawing：1st, blowout prevention box main body, 2, packing box upper press cover, 3, packing box top soft seal component, 4, on packing box
Sealed cylinder block, 5, lower sealed pressing sleeve, 6, lower seal cartridge, 7, sealed cylinder block under packing box, 8, packing box bottom soft seal component,
9th, well head connection screw thread, 10, metal hard-sealing face, 11, metal hard-sealing coupling type centrum, 12, sucker rod polished rod, 13, upper close
Seal gland.
Embodiment
The utility model is further described through below in conjunction with the accompanying drawings.As shown in drawings, a kind of high temperature steam injection recovers the oil
Triple seal blowout prevention box, it includes multiple revolution metallic part bolt connections and forms blowout prevention box main body 1, described blowout prevention box main body
A sucker rod polished rod that can be twitched up and down 12 is provided with 1 center；The top of blowout prevention box main body 1 is packing box upper press cover
2, the lower section bolt connection of packing box upper press cover 2 has sealed cylinder block 4 on packing box, described packing box upper press cover 2 and packing box
The upper junction of sealed cylinder block 4, sucker rod polished rod 12 is provided with sealed pressing sleeve 13 on a circle, described upper sealed pressing sleeve 13
Underface is packing box top soft seal component 3；On packing box in sealed cylinder block region, it is combined with sucker rod polished rod 12
Lower sealed pressing sleeve 5 is provided with gap, the periphery of described lower sealed pressing sleeve 5, it sets in gap with sealed cylinder block 4 on packing box
There is a lower seal cartridge 6, the underface bolt connection of sealed cylinder block 4 there are sealed cylinder block 7 under packing box on packing box, close under described
The lower section for sealing gland 5 is packing box bottom soft seal component 8, and described packing box bottom soft seal component 8 extends to disk
The middle part of sealed cylinder block 7 under root box；The periphery of sealed cylinder block 7 is provided with the well head fixed with well head and connects spiral shell under described packing box
Line 9；The bottom of sealed cylinder block 7 is provided with the metal hard-sealing face 10 of a taper under described packing box；
The bottom of described sucker rod polished rod 12 is threaded with the metal hard-sealing coupling type centrum of a metal material
11, the upper surface of described metal hard-sealing coupling type centrum 11 is taper design, its taper and the phase of metal hard-sealing face 10
Match somebody with somebody.
Further, in order to avoid the packing box top soft seal component 3 of non-metallic material and the soft seal of packing box bottom
Caused change in shape when being heated of component 8, described packing box top soft seal component 3 and packing box bottom soft seal component
8 be all to be enumerated to form up and down by multiple graphite annulus, increases the secondary restorative of airtight and watertight padding, it is secondary to seal assembly to reduce temperature
The influence of sealing effectiveness.
During utility model works, seal, realize jointly with one-level lifting pumping as shown in Fig. 2 two-stage rotates pumping
The three-level sealing structure of blowout prevention box：Two-stage nonmetallic materials soft seal adds one-level metal to metal to seal firmly.Adopted in rotation pumping
During oily operation, packing box top soft seal component 3 and the two-stage nonmetallic materials soft seal work of packing box bottom soft seal component 5
Make；In steam injection heat tracing, sucker rod polished rod, the bottom metal hard-sealing coupling type cone 11 and packing box of sucker rod polished rod are above put forward
The percussion of metal hard-sealing face 10 of the bottom taper of lower sealed cylinder block 7, which coincide, to be in close contact, and is formed metal to metal and is sealed firmly, this
Kind sealing means not only good sealing effect, but also influence of the HTHP to two level nonmetallic materials soft seal can be avoided,
Play the effect of protection two level soft seal；Because in thermal process, the fluctuation of wellhead temperature pressure change is big, separates working hour,
The soft seal of two-stage nonmetallic materials is played respectively and one-level metal to metal seals the strong point of coupling type cone seals firmly, and three-level is close
Envelope collocation work, HTHP is asked nonmetallic airtight and watertight padding thermal deformation when can efficiently solve steam injection and high temperature heat tracing
Topic, secondary restorative, the influence of reduction temperature, pressure to seal assembly secondary seal effect of increase airtight and watertight padding.To sum up, originally
Utility model is simple in construction, easy to use, is a kind of preferably high temperature steam injection oil recovery triple seal blowout prevention box.
Claims (2)
1. a kind of high temperature steam injection oil recovery triple seal blowout prevention box, it includes multiple revolution metallic part bolt connections and forms blowout prevention box
Main body, it is characterised in that：A sucker rod for being sealed, being moved up and down is provided with the center of described blowout prevention box main body
Polished rod；The top of blowout prevention box main body is packing box upper press cover, and the lower section bolt connection of packing box upper press cover has to be sealed on packing box
Cylinder body, described packing box upper press cover and sealed cylinder block junction on packing box, are provided with close on a circle around sucker rod polished rod
Gland is sealed, the underface of described upper sealed pressing sleeve is packing box top soft seal component；The sealed cylinder block region on packing box
It is interior, it is provided with lower sealed pressing sleeve in its gap combined with sucker rod polished rod, the periphery of described lower sealed pressing sleeve, itself and packing box
It is provided with lower seal cartridge in the gap of upper sealed cylinder block, there is close under packing box the underface bolt connection of sealed cylinder block on packing box
Seal cylinder body, the lower section of described lower sealed pressing sleeve is packing box bottom soft seal component, described packing box bottom soft seal group
Part extends to the middle part of sealed cylinder block under packing box；The periphery of sealed cylinder block is provided with described packing box and well head is fixed
Well head connection screw thread；The bottom of sealed cylinder block is provided with the metal hard-sealing face of a taper under described packing box；Described
The bottom of sucker rod polished rod is threaded with the metal hard-sealing coupling type cone of a metal material, described metal hard-sealing
The upper surface of coupling type cone is taper design, and its taper matches with metal hard-sealing face.
A kind of 2. high temperature steam injection oil recovery triple seal blowout prevention box according to claim 1, it is characterised in that：Described packing
Box top soft seal component and packing box bottom soft seal component are all to be enumerated to form up and down by multiple graphite annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721080637.1U CN207111032U (en) | 2017-08-28 | 2017-08-28 | A kind of high temperature steam injection oil recovery triple seal blowout prevention box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721080637.1U CN207111032U (en) | 2017-08-28 | 2017-08-28 | A kind of high temperature steam injection oil recovery triple seal blowout prevention box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111032U true CN207111032U (en) | 2018-03-16 |
Family
ID=61576962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721080637.1U Expired - Fee Related CN207111032U (en) | 2017-08-28 | 2017-08-28 | A kind of high temperature steam injection oil recovery triple seal blowout prevention box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111032U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590563A (en) * | 2018-04-08 | 2018-09-28 | 中国石油化工股份有限公司 | Screw pump well head steam injection sealing device and note adopt integrated optical rod seal apparatus |
-
2017
- 2017-08-28 CN CN201721080637.1U patent/CN207111032U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590563A (en) * | 2018-04-08 | 2018-09-28 | 中国石油化工股份有限公司 | Screw pump well head steam injection sealing device and note adopt integrated optical rod seal apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |