CN201730576U - Straight pipe type thermal production casing pipe head - Google Patents
Straight pipe type thermal production casing pipe head Download PDFInfo
- Publication number
- CN201730576U CN201730576U CN2010202703475U CN201020270347U CN201730576U CN 201730576 U CN201730576 U CN 201730576U CN 2010202703475 U CN2010202703475 U CN 2010202703475U CN 201020270347 U CN201020270347 U CN 201020270347U CN 201730576 U CN201730576 U CN 201730576U
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- China
- Prior art keywords
- casing head
- casing pipe
- pipe head
- press
- casing
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- Expired - Lifetime
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Abstract
The utility model relates to a straight pipe type thermal production casing pipe head. The technical scheme of the casing pipe head includes that one or a plurality of overflow holes are radially arranged on a casing pipe head casing, and screw threads in connected matching with a surface-layer casing pipe is arranged on the lower portion of the casing pipe head casing. An inner conical surface is arranged on the inner wall of the casing pipe head on the upper portions of the overflow holes and matches with a suspension sealing plate positioned above the inner conical surface in a lap joint manner. A plurality of sealing grooves and sealing rings are arranged on the inner wall of the suspension sealing plate, and the sealing rings are in sliding sealing fit with a sealing oil sleeve penetrating through the inside of the suspension sealing plate. A release preventive sleeve is arranged on the upper surface of the suspension sealing plate, a boss is arranged on the outer wall of the release preventive sleeve, and the release preventive sleeve is firmly connected with the casing pipe head casing via a single flange. Compared with the prior art, the straight pipe type thermal production casing pipe head substantially eliminates hidden safety accident risks in the prior art, and guarantees safe, stable, highly efficient, convenient and speedy thermal production operation.
Description
Technical field
The utility model relates to the wellhead assembly that the petroleum thermal recovery well head is used for connecting down-hole casing and ground production tree.It specifically is a kind of straight tubular thermal extraction casing head.
Background technology
Existing thermal production well mouth mainly adopts the way of steel plate welding respectively the surface pipe and the production string of oil well to be fixed.This structure in use exists many potential safety hazards and accident.1, the high-temperature high-pressure steam slurry flows of leaking from production string is impacted welded-steel plate construction easily and is thrown in the air threat to life safety; 2, the high-temperature water vapor slurry flows of leakage ejection is in and flows to runaway condition, causes serious environmental to pollute; 3, cause sleeve pipe easily to take off admittedly with cementing concrete because high temperature expands, in the cargo handling process of regular wellhead assembly, the screw thread of upper end production string just easily becomes flexible, and buries very big accident potential.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, a kind of rational in infrastructure, safety and stability, thermal recovery efficient height is provided, makes things convenient for the straight tubular thermal extraction casing head of wellhead assembly loading and unloading.
Its technical scheme comprises: radially be provided with one or several spout hole on the casing head housing, the casing head lower housing portion is provided with the screw thread that is connected cooperation with surface pipe.Casing head inwall on spout hole top is provided with inner conical surface, cooperates with the suspension seal disc overlap joint that is seated in the inner conical surface top.Hang the seal disc inwall and be provided with several seal grooves and joint ring, joint ring forms slipper seal with the sealing oil jacket that runs through suspension seal disc inside and cooperates.Be provided with anti-press-offing on hang seal disc, the anti-outer wall of press-offing is provided with boss, forms by monomer flange and casing head housing to be fastenedly connected.
Described anti-press-offing press-offed and the butt joint of support set two parts is formed by anti-, described sealing oil jacket is connected to form by the stop tube two parts on sealing oil jacket and top, at the outer wall of stop tube several keyways are set at interval vertically, keyway be arranged on anti-inwall several teeth corresponding matching spaced apart of press-offing.
Radial distribution two or more jackscrews and pressure cap on casing head housing top, and monomer flange and casing head housing form by double-screw bolt and nut and be fastenedly connected.
The utility model compared with prior art, the suspension seal disc structure of increase can satisfy the dynamic seal (packing) in the production string expansion process, guarantee to return slurry flows and derive smoothly along bleed off pipe, the protection surrounding enviroment; The thread convenience of casing head bottom and being connected of surface pipe; Anti-press-off and the special construction of stop tube has well solved production string in the wellhead assembly connection procedure with changeing and the up lockout issue of production string; The fixation problem of other operation process middle sleeve heads of oil well and power tool has been satisfied in the design of casing head jackscrew and pressure cap.The final security incident hidden danger of greatly eliminating the prior art existence has guaranteed thermal recovery job safety, stable, efficient, convenient carrying out.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
Embodiment 1: with reference to accompanying drawing, radially be provided with two spout holes 9 on the casing head housing 4, the casing head lower housing portion is provided with the screw thread that is connected cooperation with surface pipe 12.Casing head housing 4 inwalls on spout hole 9 tops are provided with inner conical surface, cooperate with suspension seal disc 13 overlap joints that are seated in the inner conical surface top.Hang seal disc 13 inwalls and be provided with two groups of seal grooves and alloy composite elastic joint ring 8, joint ring 8 cooperates with the dynamic slipper seal that the sealing oil jacket 10 that runs through suspension seal disc inside constitutes than rough surface.On hang seal disc 13, be provided with anti-press-off 1 and support set 7 (annotate: anti-press-off 1 and support set 7 can be overall structure, also can be the butt joint combining structure), anti-1 outer wall of press-offing is provided with boss, by double-screw bolt 3 and nut 2 monomer flange 14 and casing head housing 4 are fastenedly connected, thereby the static seal of seal disc 13 and 4 liang of conical surfaces of casing head housing is hung in realization.Sealing oil jacket 10 tops connect stop tube 15, and (annotate: sealing oil jacket 10 and stop tube 15 can be made integral body, also can be connected into one) by screw thread, along the stop tube outer wall 3 keyways 17 are set axially, keyway 17 3 teeth 16 spaced apart with being arranged on anti-1 the inwall of press-offing form and cooperate, constitute anti-rotation and prevent debentition embedding structure.Two jackscrews 6 and pressure cap 5 in casing head housing 4 top radial distribution, all realize being connected and fixed between casing head housing 4 and the surface pipe 12 and between sealing oil jacket 10 and the production string 11 by screw thread.
This embodiment both can do thermal recovery and annotate vapour operation use, also can take into account other shaft mouth operation and use.
Embodiment 2: radially be provided with two spout holes 9 on the casing head housing 4, the casing head lower housing portion is provided with the screw thread that is connected cooperation with surface pipe 12.Casing head housing 4 inwalls on spout hole 9 tops are provided with inner conical surface, cooperate with suspension seal disc 13 overlap joints that are seated in the inner conical surface top.Hang seal disc 13 inwalls and be provided with two groups of seal grooves and joint ring 8, joint ring 8 cooperates with the dynamic slipper seal that the sealing oil jacket 10 that runs through suspension seal disc inside forms than rough surface.Be provided with on hang seal disc 13 and anti-ly press-off 1 and support set 7, anti-1 outer wall of press-offing is provided with boss, by double-screw bolt 3 and nut 2 monomer flange 14 and casing head housing 4 is fastenedly connected.Sealing oil jacket 10 tops connect stop tube 15, along the outer wall of stop tube 15 2 keyways 17 are set axially, and keyway 17 2 teeth 16 formation spaced apart with being arranged on anti-1 the inwall of press-offing cooperate.
This embodiment has omitted the structure division of two jackscrews 6 and pressure cap 5 in casing head housing 4 top radial distribution on the basis of embodiment 1.This structure is applicable to thermal recovery operation use usually.
Embodiment 3: radially be provided with two spout holes 9 on the casing head housing 4, the casing head lower housing portion is provided with the screw thread that is connected cooperation with surface pipe 12.Casing head housing 4 inwalls on spout hole 9 tops are provided with inner conical surface, cooperate with suspension seal disc 13 overlap joints that are seated in the inner conical surface top.Hang seal disc 13 inwalls and be provided with two groups of seal grooves and joint ring 8, joint ring 8 cooperates with the dynamic slipper seal that the sealing oil jacket 10 that runs through suspension seal disc inside forms than rough surface.Be provided with and anti-ly press-off 1 (omit support set 7 here, be equivalent to anti-press-off and support set is structure as a whole) on hang seal disc 13, anti-1 outer wall of press-offing is provided with boss, by double-screw bolt 3 and nut 2 monomer flange 14 and casing head housing 4 is fastenedly connected.
This embodiment has omitted the anti-debentition embedding structure division of anti-rotation, the outstanding accident potential that prevents to expand and bring that solves in conventional thermal recovery water filling operation on the basis of embodiment 2.
Claims (3)
1. straight tubular thermal extraction casing head, it is characterized in that: radially be provided with one or several spout hole on the casing head housing, the casing head lower housing portion is provided with the screw thread that is connected cooperation with surface pipe, casing head inner walls on spout hole top is provided with inner conical surface, cooperate with the suspension seal disc overlap joint that is seated in the inner conical surface top, hang the seal disc inwall and be provided with several seal grooves and joint ring, joint ring forms slipper seal with the sealing oil jacket that runs through suspension seal disc inside and cooperates, on hang seal disc, be provided with anti-press-offing, the anti-outer wall of press-offing is provided with boss, forms by monomer flange and casing head housing to be fastenedly connected.
2. straight tubular thermal extraction casing head according to claim 1, it is characterized in that: described anti-press-offing press-offed and support set two parts butt joint of bottom is formed by anti-, described sealing oil jacket is connected to form by the stop tube two parts on sealing oil jacket and top, along the stop tube outer wall several keyways are set axially, keyway be arranged on anti-inwall top several teeth corresponding matching spaced apart of press-offing.
3. straight tubular thermal extraction casing head according to claim 1 and 2 is characterized in that: radial distribution two or more jackscrews and pressure cap on casing head housing top, and monomer flange and casing head housing form by double-screw bolt and nut and be fastenedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202703475U CN201730576U (en) | 2010-07-20 | 2010-07-20 | Straight pipe type thermal production casing pipe head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202703475U CN201730576U (en) | 2010-07-20 | 2010-07-20 | Straight pipe type thermal production casing pipe head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201730576U true CN201730576U (en) | 2011-02-02 |
Family
ID=43521733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202703475U Expired - Lifetime CN201730576U (en) | 2010-07-20 | 2010-07-20 | Straight pipe type thermal production casing pipe head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201730576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587282A (en) * | 2016-01-28 | 2016-05-18 | 太仓市高泰机械有限公司 | Casing head for thermal recovery of thick oil |
| CN110631016A (en) * | 2019-10-12 | 2019-12-31 | 宁夏金戈能源科技发展有限公司 | Cooling type energy-saving burner for carbon roasting furnace |
-
2010
- 2010-07-20 CN CN2010202703475U patent/CN201730576U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587282A (en) * | 2016-01-28 | 2016-05-18 | 太仓市高泰机械有限公司 | Casing head for thermal recovery of thick oil |
| CN110631016A (en) * | 2019-10-12 | 2019-12-31 | 宁夏金戈能源科技发展有限公司 | Cooling type energy-saving burner for carbon roasting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENGLI OILFIELD HAORUI PETROLEUM MACHINERY CO., L Free format text: FORMER OWNER: SU GUANLI Effective date: 20110329 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110329 Address after: 257000 Shandong province Dongying Kenli County Dongan town government resident Hao Rui company Patentee after: SHENGLI OILFIELD HAORUI PETROLEUM MACHINERY CO., LTD. Address before: 257000 Shandong province Dongying Kenli County Dongan town government resident Hao Rui company Patentee before: Su Guanli |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110202 |