CN206625815U - A kind of anti-leak thermal extraction casing head - Google Patents
A kind of anti-leak thermal extraction casing head Download PDFInfo
- Publication number
- CN206625815U CN206625815U CN201720351934.9U CN201720351934U CN206625815U CN 206625815 U CN206625815 U CN 206625815U CN 201720351934 U CN201720351934 U CN 201720351934U CN 206625815 U CN206625815 U CN 206625815U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- connector
- ring
- annular boss
- inner tube
- 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.)
- Active
Links
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model discloses a kind of anti-leak thermal extraction casing head,Including inner tube and sleeve pipe,Said inner tube side is provided with first annular boss,Described sleeve pipe side is provided with the second annular boss,Connector is slidably connected in inner tube above the first annular boss,Connection ring is slidably connected on sleeve pipe below second annular boss,Said inner tube and sleeve pipe are fixedly connected by connector with connection ring,The connector side is provided with mounting groove,Cone-shaped sealing ring is provided with the mounting groove,The top of the cone-shaped sealing ring is provided with connecting plate,The connecting plate is provided with corresponding connecting hole with connection ring,This anti-leak thermal extraction casing head,Hung by hanging connecting hole with rope overall,It can prevent that gathering sleeve pipe caused by oil reservoir sinks sinks,Avoid occurring the situation of welding position cracking,Cone-shaped sealing ring can seal the cavity between sleeve pipe and sleeve pipe,So as to prevent profit from revealing,Overall structure is simply easily installed.
Description
Technical field
Thermal recovery sleeve technology field is the utility model is related to, specially a kind of anti-leak thermal extraction casing head.
Background technology
Xinjiang Oilfield heavy oil reserves account for nearly the 25% of total amount, at present generally using the side of note high temperature and high pressure steam exploitation
Method, supporting is earth anchor special cementing technology, and existing thermal extraction casing head typically uses gland by top connection outside and sleeve pipe sheet
Body links together, and top connection lower end is fixed together with production string upper end, but because cementing quality is poor or is taken turns through excessive
Oil reservoir is acted on by alternate stress after gas injecting mining, and the cement sheath cementing strength between stratum and production string reduces, and leads
Oil reservoir oil jacket is caused to sink, the production tree for making to be pressed together on production string upper end by top connection declines therewith, in turn results in hanger
With the welding position of sleeve pipe cracking, hanger upper head plate drawing crack, oil gas water in annular space etc. is at weld cracking and end plate drawing crack
Place's leakage, causes environmental pollution；And production tree sinks, also bring safety hidden to well maintenance operations such as later stage production tree maintenance
Suffer from, therefore, existing thermal extraction casing head has the following disadvantages in actual use：Production tree easily sinks with production string, leads
Causing environmental pollution, reduce low production efficiency, application number 201620463352.5 discloses a kind of anti-leak thermal extraction casing head, including
Connecting short section, hanger, slips, production string, gland and sleeve body, upper end have externally threaded connecting short section to be sleeved on oil reservoir
Sleeve pipe upper outside, connecting short section middle part outer sheath are equipped with gland, and gland lower outside is fixed with outer positive stop lug boss, outer limit convex
Platform lower end inside is fixedly installed togather with sleeve body upper outside, connecting short section lower end outside and spiral shell on the inside of hanger upper end
Line is connected, and hanger is fixedly mounted between production string and sleeve body by slips, although can solve the problem that the problem of above-mentioned,
But there is complicated be installed the problem of inconvenient.
Utility model content
The technical problems to be solved in the utility model is to overcome the defects of existing, there is provided a kind of anti-leak thermal extraction casing head,
It can prevent that gathering sleeve pipe caused by oil reservoir sinks sinks, and avoids occurring the situation of welding position cracking, while possess good
Sealing can prevent profit from revealing, it is simple in construction to be easily installed, effectively can solve the problems, such as in background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of anti-leak thermal extraction casing head, including it is interior
Pipe and sleeve pipe, said inner tube side are provided with first annular boss, and described sleeve pipe side is provided with the second annular boss, first ring
Slidably connect connector in inner tube above shape boss, connection is slidably connected on the sleeve pipe below second annular boss
Ring, said inner tube and sleeve pipe are fixedly connected by connector with connection ring.
As a kind of optimal technical scheme of the present utility model, the connector side is provided with mounting groove, the mounting groove
Interior to be provided with cone-shaped sealing ring, the top of the cone-shaped sealing ring is provided with connecting plate, and the connecting plate is provided with corresponding with connection ring
Connecting hole, connecting screw is slidably connected in the connecting hole, attaching nut, institute have been connected through a screw thread on the connecting screw
Connector is stated to be fixedly connected by connecting screw and attaching nut with connection ring.
As a kind of optimal technical scheme of the present utility model, between the connector and first annular boss and connect
The top of part is equipped with keeper.Neck is equipped with the both ends inwall of the connector, the keeper corresponds to neck and is provided with
Snap ring.
As a kind of optimal technical scheme of the present utility model, the keeper, which includes the first retainer ring and second, to be fixed
Ring, the both ends of first retainer ring and the second retainer ring are equipped with connected unit, and the connected unit is provided with corresponding through hole, described
Slidably connect standing screw in through hole, the standing screw has been connected through a screw thread fixing nut, first retainer ring and
Second retainer ring is connected by standing screw with fixing nut.
As a kind of optimal technical scheme of the present utility model, the top of the connector is provided with suspension connecting hole, described
Suspension connecting hole is connected with the rope in the external world.
Compared with prior art, the beneficial effects of the utility model are：This anti-leak thermal extraction casing head, connected by hanging
Hole is hung with rope overall, can prevent that gathering sleeve pipe caused by oil reservoir sinks sinks, and avoids that welding position occurs
The situation of cracking, cone-shaped sealing ring can seal the cavity between sleeve pipe and sleeve pipe, overall so as to prevent profit from revealing
Structure be simply easily installed.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model internal structure schematic diagram；
Fig. 3 is the utility model section structural representation；
Fig. 4 is the utility model A ends mplifying structure schematic diagram；
Fig. 5 is the utility model B ends mplifying structure schematic diagram.
In figure：1 inner tube, 2 first annular boss, 3 connectors, 4 cone-shaped sealing rings, 5 connecting plates, 6 keepers, 61 first are consolidated
Determine ring, 62 second retainer rings, 63 connected units, 64 through holes, 65 standing screws, 66 fixing nuts, 7 sleeve pipes, 8 second annular boss, 9
Connection ring, 10 connecting holes, 11 connecting screws, 12 attaching nuts, 13 suspension connecting holes, 14 necks, 15 snap rings.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-5 are referred to, the utility model provides a kind of technical scheme：A kind of anti-leak thermal extraction casing head, including inner tube 1
With sleeve pipe 7, the side of inner tube 1 is provided with first annular boss 2, and the side of sleeve pipe 7 is provided with the second annular boss 8, on first annular boss 2
Connector 3 is slidably connected in the inner tube 1 of side, connection ring 9, inner tube are slidably connected on the sleeve pipe 7 of the lower section of the second annular boss 8
1 and sleeve pipe 7 be fixedly connected by connector 3 with connection ring 9, the side of connector 3 is provided with mounting groove, and it is close that taper is provided with mounting groove
Seal ring 4, it is easy to seal the sleeve pipe 7 of different size, so as to expand the scope used, the top of cone-shaped sealing ring 4 is set
There is connecting plate 5, connecting plate 5 is provided with corresponding connecting hole 10 with connection ring 9, connecting screw 11 is slidably connected in connecting hole 10,
Attaching nut 12 is connected through a screw thread on connecting screw 11, connector 3 passes through connecting screw 11 and attaching nut with connection ring 9
12 are fixedly connected so that connection is more firm, so as to improve overall stability, between connector 3 and first annular boss 2
And the top of connector 3 is equipped with keeper 6, it is easy to that the position of connector 3 is fixed, so as to prevent connector 3 from moving
It is dynamic, neck 14 is equipped with the both ends inwall of connector 3, the corresponding neck 14 of keeper 6 is provided with snap ring 15, adds the face of contact
Product, so as to expand frictional force so that keeper 6 is not susceptible to move, and keeper 6, which includes the first retainer ring 61 and second, to be fixed
The both ends of ring 62, the first retainer ring 61 and the second retainer ring 62 are equipped with connected unit 63, and connected unit 63 is provided with corresponding through hole 64,
Standing screw 65 is slidably connected in through hole 64, standing screw 65 has been connected through a screw thread fixing nut 66, the first retainer ring 61
Connected with the second retainer ring 62 by standing screw 65 and fixing nut 66 so that connection is more firm, so as to prevent skidding, even
The top of fitting 3 is provided with suspension connecting hole 13, and suspension connecting hole 13 is connected with the rope in the external world, can be hung to overall,
It can prevent that gathering sleeve pipe caused by oil reservoir sinks sinks, and avoids occurring the situation of welding position cracking.
When in use：Connecting connector 3 is covered in inner tube 1, the position of connector 3 is fixed by two keepers 6,
The top of sleeve pipe 7 is socketed from the bottom of inner tube 1, sleeve pipe 7 moved up, because the side of cone-shaped sealing ring 4 sets for inclination
Put, so that being moved to after certain altitude for sleeve pipe 7 can be tangent with the side of cone-shaped sealing ring 4, now pass through connecting screw
11 and attaching nut 12 so that sleeve pipe 7 and connector 3 are fixed, hang rope inside connecting hole 13 finally by being connected to
Rope, so as to be hung overall.
The utility model by be connected to suspension connecting hole 13 inside rope, so as to integrally hung, so as to
Enough prevent that gathering sleeve pipe caused by oil reservoir sinks sinks, and avoids occurring the situation of welding position cracking, the inner ring and cone of sleeve pipe 7
The side of V-shaped ring 4, can closely it be bonded by connecting screw 11 and attaching nut 12, so as to prevent profit
Leakage, while overall setting is relatively simple, consequently facilitating being installed and being used.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of anti-leak thermal extraction casing head, including inner tube (1) and sleeve pipe (7), it is characterised in that：Said inner tube (1) side is set
There is first annular boss (2), described sleeve pipe (7) side is provided with the second annular boss (8), first annular boss (2) top
Inner tube (1) on slidably connect connector (3), the company of slidably connecting on the sleeve pipe (7) below second annular boss (8)
Ring (9), said inner tube (1) and sleeve pipe (7) is connect to be fixedly connected with connection ring (9) by connector (3).
A kind of 2. anti-leak thermal extraction casing head according to claim 1, it is characterised in that：Connector (3) side is set
There is mounting groove, cone-shaped sealing ring (4) is provided with the mounting groove, the top of the cone-shaped sealing ring (4) is provided with connecting plate (5),
The connecting plate (5) is provided with corresponding connecting hole (10) with connection ring (9), and connection spiral shell is slidably connected in the connecting hole (10)
Bar (11), attaching nut (12), the connector (3) and connection ring (9) are connected through a screw thread on the connecting screw (11)
It is fixedly connected by connecting screw (11) with attaching nut (12).
A kind of 3. anti-leak thermal extraction casing head according to claim 1, it is characterised in that：The connector (3) and first
Between annular boss (2) and the top of connector (3) is equipped with keeper (6).On the both ends inwall of the connector (3)
Provided with neck (14), the corresponding neck (14) of the keeper (6) is provided with snap ring (15).
A kind of 4. anti-leak thermal extraction casing head according to claim 3, it is characterised in that：The keeper (6) includes the
The both ends of one retainer ring (61) and the second retainer ring (62), first retainer ring (61) and the second retainer ring (62) are equipped with company
Platform (63) is connect, the connected unit (63) is provided with corresponding through hole (64), standing screw is slidably connected in the through hole (64)
(65), the standing screw (65) has been connected through a screw thread fixing nut (66), and first retainer ring (61) and second are fixed
Ring (62) is connected by standing screw (65) and fixing nut (66).
A kind of 5. anti-leak thermal extraction casing head according to claim 1, it is characterised in that：The top of the connector (3)
Provided with suspension connecting hole (13), the suspension connecting hole (13) is connected with the rope in the external world.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351934.9U CN206625815U (en) | 2017-04-06 | 2017-04-06 | A kind of anti-leak thermal extraction casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720351934.9U CN206625815U (en) | 2017-04-06 | 2017-04-06 | A kind of anti-leak thermal extraction casing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206625815U true CN206625815U (en) | 2017-11-10 |
Family
ID=60207179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720351934.9U Active CN206625815U (en) | 2017-04-06 | 2017-04-06 | A kind of anti-leak thermal extraction casing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206625815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856542A (en) * | 2022-05-09 | 2022-08-05 | 西南石油大学 | Device and method for testing integrity of cement ring under simulated prestress action |
-
2017
- 2017-04-06 CN CN201720351934.9U patent/CN206625815U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856542A (en) * | 2022-05-09 | 2022-08-05 | 西南石油大学 | Device and method for testing integrity of cement ring under simulated prestress action |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202990942U (en) | Double-seal Christmas tree for conveniently mounting coiled tubing | |
| CN101644149B (en) | Integral type level oil extraction wellhead equipment | |
| CN201650211U (en) | Multifunctional cross | |
| CN202500518U (en) | Integrated oil casing head for well drilling and completion | |
| CN202810736U (en) | Thermal recovery horizontal well expansion pipe hanger | |
| CN206625815U (en) | A kind of anti-leak thermal extraction casing head | |
| CN106050181A (en) | Thermal recovery casing head | |
| CN202176303U (en) | Load bearing device for underwater wellhead | |
| CN210714497U (en) | Double-layer combined sleeve | |
| CN201428405Y (en) | Patch device for casing damaged well | |
| CN204827415U (en) | Cable passes through well logging tubular column that connects and use this joint | |
| CN110924888A (en) | Multifunctional metal sealing type casing head | |
| CN205876257U (en) | Thermal recovery casing head | |
| CN205778685U (en) | Two-stage hangs thermal extraction casing head | |
| CN204899838U (en) | Compound bridging plug of ball cage | |
| CN212479153U (en) | Multifunctional metal sealing type casing head | |
| CN202810763U (en) | High-temperature-resistant pre-stress casing head | |
| CN205743816U (en) | Old well reparation thermal extraction casing head | |
| CN202108465U (en) | Non-metal drillable bridge plug | |
| CN205477472U (en) | Double formula prestressing force well cementation earth anchor assembly | |
| CN207296951U (en) | A kind of setting tool | |
| CN201826763U (en) | Externally thickened tubing and casing | |
| CN101514613A (en) | Extension hanger | |
| CN205714074U (en) | Dual-purpose thermal extraction casing head | |
| CN205012958U (en) | Dabber hanger that can exchange with slips hanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |