CN205778688U - Combustion soaking/fireflood Casing head of borehole - Google Patents
Combustion soaking/fireflood Casing head of borehole Download PDFInfo
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- CN205778688U CN205778688U CN201620629655.XU CN201620629655U CN205778688U CN 205778688 U CN205778688 U CN 205778688U CN 201620629655 U CN201620629655 U CN 201620629655U CN 205778688 U CN205778688 U CN 205778688U
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- flange
- hanger
- hole
- fireflood
- borehole
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Abstract
This utility model provides a kind of combustion soaking/fireflood Casing head of borehole, and including main body, described body interior is provided with the first through hole, and described first through hole is used for housing casing tube；First flange and the second flange, described first flange is connected with the top of described main body, described second flange be arranged on described first flange top and with described first Flange joint；The material of described main body is 1Cr13 rustless steel.Resistance to compression that combustion soaking in this utility model/fireflood Casing head of borehole is the best, corrosion resistance, and seal is good.
Description
Technical field
This utility model relates to a kind of combustion soaking/fireflood Casing head of borehole, belongs to technical field of petroleum machinery.
Background technology
Casing head is usually used in oil, gas exploitation course, is arranged on surface pipe post upper end, is used for fixing and creeps into well
Well head, connect wellhead casing pipe post.In order to support the connection assembly of protective casing and production string, can be used for sealing between each layer pipe
Annular space, for install preventer, tubing head, production tree provide transition connect.
Casing head the most on the market is mainly used in carrying out heavy crude reservoir using, when developing due to shallow-layer during shallow-layer exploitation
Well head pressure, temperature be not the most the highest, well inner acidic gas concentration is relatively low, therefore for casing head corrosion resistance without
Excessive demand, and existing casing head is owing to being generally applicable in shallow well, and therefore its pressure-bearing scope is low, and sealing is poor.
But along with the exploitation of more and more ultra-deep heavy crude reservoirs, owing to its well head pressure, temperature are all far above common oil reservoir,
And the excessive concentration of hydrogen sulfide gas in well, the most existing casing head cannot be applicable to opening of ultra-deep heavy crude reservoir
Send out.
Utility model content
For drawbacks described above, this utility model provides a kind of combustion soaking/fireflood Casing head of borehole, is used for overcoming prior art
The defect that middle sleeve head crushing resistance is poor, corrosion-resistant, seal are the best, the exploitation for ultra-deep heavy crude reservoir provides in resistance to compression
Degree, corrosion resistance and seal aspect all show good combustion soaking/fireflood Casing head of borehole.
This utility model provides a kind of combustion soaking/fireflood Casing head of borehole, including: main body, described body interior is provided with
First through hole, described first through hole is used for housing casing tube；
First flange and the second flange, described first flange is connected with the top of described main body, and described second flange is arranged
Described first flange top and with described first Flange joint；
The material of described main body is 1Cr13 rustless steel.
In one embodiment, hanger is also included；
Described main body is connected with described casing tube by described hanger, and described hanger is placed in described first through hole
In, described hanger is internally provided with the second through hole, and described second through hole is used for housing described casing tube；
Described hanger respectively with described first flange and the second Flange joint.
In one embodiment, described first flange is internal is ramp structure, and described hanger passes through described ramp structure
It is connected together with described first flange.
In one embodiment, the first rubber seal is also included between described ramp structure and described hanger.
In one embodiment, the outside of described first flange also includes altering on anti-top wire hole, described anti-on alter top wire hole
Jackscrew is altered on anti-for housing.
In one embodiment, the outside of described first flange also includes that anti-rotation top wire hole, described anti-rotation top wire hole are used for
Accommodating anti-rotation jackscrew.
In one embodiment, the internal diameter of described second flange is more than the external diameter of described hanger upper end, described second method
Orchid is connected together by the upper end of the second rubber seal with described hanger.
In one embodiment, described hanger is internally provided with helicitic texture, and described casing tube is by described suspension
The internal helicitic texture arranged of device is connected with described hanger.
In one embodiment, the bottom of described main body is provided with female thread structure, and surface pipe is by under described main body
The female thread structure that portion is arranged is connected with described main body.
In one embodiment, the both sides of described main body also include third through-hole and fourth hole, described third through-hole and
Fourth hole connects with described first through hole respectively.
Resistance to compression that combustion soaking in this utility model/fireflood Casing head of borehole is the best, corrosion resistance, and airtight
Property is good, it is adaptable to the actual application of ultra-deep heavy crude reservoir combustion soaking/fireflood.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is
Embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of combustion soaking of the present utility model/fireflood Casing head of borehole；
Fig. 2 is the sectional view of combustion soaking of the present utility model/fireflood Casing head of borehole；
Fig. 3 is the front view of combustion soaking of the present utility model/fireflood another embodiment of Casing head of borehole.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Based on the enforcement in this utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under not paying creative work premise, broadly fall into
The scope of this utility model protection.
Fig. 1 is the front view of combustion soaking of the present utility model/fireflood Casing head of borehole, refer to Fig. 1, of the present utility model
Combustion soaking/fireflood Casing head of borehole includes that main body 1, main body 1 are internally provided with the first through hole, and the first through hole is used for housing oil pipe set
Pipe；First flange 2 and the second flange 3, the first flange 2 is connected with the top of main body 1, and the second flange 3 is arranged on the first flange 2
Portion is also connected with the first flange 2；The material of main body 1 is 1Cr13 rustless steel.
The tubular structure that combustion soaking of the present utility model/fireflood Casing head of borehole main body 1 specially about runs through, this pipe
The hollow of formula structure is the first through hole, and this main body 1 is to use the forging of 1Cr13 rustless steel to form, through this utility model
Inventor test, the stainless pressure degree of this 1Cr13 is up to 69MPa, and temperature resistant range is-29～345 DEG C, and preservative is not
FF rank, therefore uses 1Cr13 rustless steel as main body 1 material of this utility model combustion soaking/fireflood Casing head of borehole, it is possible to
Effectively strengthen pressure degree and the antiseptic property of combustion soaking/fireflood Casing head of borehole, combustion soaking/fire the most of the present utility model
Drive the applied widely of Casing head of borehole, it is possible to for the exploitation of ultra-deep heavy crude reservoir.
The first flange 2 and the second flange 3 it is respectively arranged with on combustion soaking/fireflood Casing head of borehole main body 1 top, wherein,
First flange 2 is spirally connected by bolt nut structure 21 with the top of main body 1, and the second flange 3 is connect by bolt nut structure spiral shell 25
In the top of the first flange 2, and in order to strengthen the seal of combustion soaking/fireflood Casing head of borehole, at the first flange 2 and second
Metal steel ring it is additionally provided with between flange 3.In this utility model, the top of the second flange 3 can be used in recovery process with anti-
Spray apparatus or production tree connect, and bolt nut structure 31 specifically can be used to be connected with preventer or production tree.
Specifically, the first flange 2 of the present utility model and the second flange 3 can select common according to specifically used situation
Flange or adapter flange, this utility model does not limits.Owing to combustion soaking/fireflood well recovery process needs to use relatively
Many sleeve pipes, the most in most cases, the first flange 2 and the second flange 3 mostly are adapter flange.
In this utility model, in order to ensure the connection of main body 1 and surface pipe, the bottom of main body 1 is provided with female thread
Structure, surface pipe has external thread structure, and the external screw thread of surface pipe passes through female thread structure and the master that main body 1 bottom is arranged
Body 1 links together.Now, after surface pipe and main body 1 form an entirety, casing tube can be placed in main body 1
Inside first through hole, it is connected so that casing tube is fixing with main body 1.It should be noted that the oil mentioned in this utility model
Pipe-in-pipe and production casing are also not belonging to the parts of combustion soaking/fireflood casing, this utility model is mentioned casing tube with
Production casing is simply to illustrate that the concrete of combustion soaking/fireflood casing is installed and using method.
The pullover special selection by main body 1 material of the combustion soaking of this practicality/fireflood well, is effectively improved baked wheaten cake
Handle up/pressure the antiseptic property of fireflood Casing head of borehole, and portion arranges the first flange 2 and the second flange 3 on the body 1, passes through
Connection between flange, and main body 1 and the connection of the first flange 2, effectively maintain inside combustion soaking/fireflood Casing head of borehole
Gas tightness, it is to avoid there is gas leakage owing to main body 1 is internal and the blowout that may cause, sleeve pipe such as come off at the sending out of accident
Raw.
Fig. 2 is the sectional view of combustion soaking of the present utility model/fireflood Casing head of borehole, refer to Fig. 2, of the present utility model
Combustion soaking/fireflood well also includes hanger 4；Main body 1 is connected with casing tube by hanger 4, and hanger 4 is placed in first
In through hole, hanger 4 is internally provided with the second through hole, and the second through hole is used for housing casing tube；Hanger 4 respectively with the first method
Orchid 2 and the second flange 3 connect.
Hanger 4 can form a complete production network use with main body 1, is used for connecting main body 1 and casing tube, to hanger 4
Before inserting last root casing tube inside second through hole, can in advance hanger 4 be separated with main body 1, and by casing tube
Be connected fixing with hanger 4, the casing tube one then connection fixed removes becomes owner of body 1, by hanger 4 and the first flange
2 and second flange 3 connect, the connected mode of hanger 4 and the first flange 2 and the second flange 3 can not only control surface pipe
And the ring control sealing between casing tube, it is also possible to simple realization hanger 4 coordinates with main body 1.Change furthermore it is possible to logical
The hanger 4 of different-diameter to be adapted to the casing tube of different-diameter, the structure of hanger 4 relative to main body 1 structure more
Add simple, and make and be replaced with body, it is not necessary to produce or change various sizes of main body 1, production can be reduced
Cost.
Specifically, hanger 4 is internally provided with helicitic texture, and the short circuit of casing tube is provided with external thread structure, oil pipe
The short circuit external thread structure of sleeve pipe is connected with hanger 4 by the internal helicitic texture arranged of hanger 4, and this screw connection manner makes to hang
Contact area between hanging device 4 and oil pipe set pattern is bigger, and sealing effectiveness is more preferable, and this attended operation only need to screw can be complete
Becoming, the set-up time is short, and technique is simple.In order to intercept the annular pressure between hanger 4 and casing tube, also can be in hanger 4
Portion arranges sealed gluing block.Main body 1 structure of hanger 4 can use high strength alloy steel, and can carry out surface at nitridation
Reason, to strengthen the antioxygenic property of hanger 4, specifically can use PH17-4 high strength alloy steel
Owing to hanger 4 assume responsibility for the weight of casing tube, therefore, hanger 4 and combustion soaking/fireflood casing main body
The stable connection of 1 must be guaranteed, and in this utility model, the first flange 2 is internal is ramp structure, and hanger 4 passes through
Ramp structure and the first flange 2 are connected together.Specifically, hanger 4 and the structure of the first flange 2 contact position and ramp structure
Complementary coupling, after hanger is entered for 4 times main body 1 inside, is being spirally connected the first flange 2 with main body 1, thus ensure that suspension mutually
Device 4 is connected together with the first flange 2 ramp structure.Meanwhile, between ramp structure and hanger 4, also include that the first rubber is close
Seal, owing to ramp structure can extrude the first rubber seal, therefore the cooperation of ramp structure and the first rubber seal can
To increase the sealing effectiveness between main body 1 and hanger 4 further, the annular space between surface pipe and casing tube is made to locate completely
In sealing state, it is to avoid recovery process is likely to occur leak, gas leak phenomenon, it is ensured that the safety of combustion soaking/fireflood well is steady
Fixed production.
About the annexation between main body 1 and hanger 4, except above-mentioned ramp structure and the first rubber seal
Coordinate, it is also possible to using jackscrew stationary body 1 and hanger 4, specifically, the outside of the first flange 2 also includes altering jackscrew on anti-
Hole 22, anti-on alter top wire hole 22 for accommodating anti-on alter jackscrew, the outside of the first flange 2 also includes anti-rotation top wire hole 23, anti-rotation
Top wire hole 23 is used for housing anti-rotation jackscrew.This utility model is not intended to alter on anti-the concrete number of top wire hole and anti-rotation top wire hole,
Its concrete number mainly determines according to the length of casing tube, and the length of casing tube is the longest, and the top wire hole of setting is with corresponding
Jackscrew is the most.By anti-channeling jackscrew and anti-rotation jackscrew, main body 1 and hanger 4 are fixed, make between main body 1 and hanger 4
Cannot relatively rotate, thus realize surface pipe, main body 1, stability between hanger 4 and casing tube, i.e. oil pipe
Sleeve pipe is stable relative to surface pipe position, and owing to surface pipe is connected with main body 1 lower stabilizer, therefore casing tube also will not
There is the situation of reversion, effectively stop the potential safety hazard being likely to occur in the clean recovery process of gasoline.
It addition, hanger 4 and the second flange 3 in this utility model there is also annexation, specifically, the second flange 3
Internal diameter engage company more than the external diameter of hanger 4 upper end, the second flange 3 with the upper end of hanger 4 by the second rubber seal
Connect.Second rubber seal is extruded, further by the outside diameter structure of gauge structure in the second flange 3 with hanger 4 upper end
Ensure that the airtight connection relation of hanger 4 and body.For the annular space released between surface pipe and casing tube
Pressure, it is also possible to two plug screws 32 of releasing are set on the second flange 3 top.
Fig. 3 is the front view of combustion soaking of the present utility model/fireflood another embodiment of Casing head of borehole, refer to Fig. 3, enters
One step ground, the both sides of main body 1 also include that third through-hole 4 and fourth hole 5, third through-hole 4 and fourth hole 5 lead to first respectively
Hole connects.By third through-hole 4 and fourth hole 5, it is possible to realization body 1 and extraneous connection, specifically, can be in threeway
Thread flange, stop valve for pressure gauge 41, Pressure gauge 42 at hole 4, be used for testing the ring between surface pipe and casing tube
The pressure in shape space；Wedge Gate Valves 51, thread flange 52, plug 53 can be connected at fourth hole 5, be used for getting rid of annular empty
Gas between, and inwardly inject cement by outer circulation.Wherein, this utility model is not limiting as third through-hole 4 and four-way
The concrete installing component in hole 5.
Specifically, the latus rectum that can control third through-hole 4 and fourth hole 5 is 65mm, and uses 100MPa Pressure gauge
With 2-9/16x10000psi Wedge Gate Valves.
Resistance to compression that combustion soaking in this utility model/fireflood Casing head of borehole is the best, corrosion resistance, and airtight
Property is good, it is adaptable to the actual application of ultra-deep heavy crude reservoir combustion soaking/fireflood.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of
Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme.
Claims (10)
1. combustion soaking/fireflood Casing head of borehole, it is characterised in that include that main body, described body interior are provided with first and lead to
Hole, described first through hole is used for housing casing tube；
First flange and the second flange, described first flange is connected with the top of described main body, and described second flange is arranged on institute
State the first flange top and with described first Flange joint；
The material of described main body is 1Cr13 rustless steel.
Combustion soaking the most according to claim 1/fireflood Casing head of borehole, it is characterised in that also include hanger；
Described main body is connected with described casing tube by described hanger, and described hanger is placed in described first through hole,
Described hanger is internally provided with the second through hole, and described second through hole is used for housing described casing tube；
Described hanger respectively with described first flange and the second Flange joint.
Combustion soaking the most according to claim 2/fireflood Casing head of borehole, it is characterised in that inside described first flange be
Ramp structure, described hanger is connected together with described first flange by described ramp structure.
Combustion soaking the most according to claim 3/fireflood Casing head of borehole, it is characterised in that described ramp structure is with described
The first rubber seal is also included between hanger.
Combustion soaking the most according to claim 1/fireflood Casing head of borehole, it is characterised in that the outside of described first flange
Also include altering on anti-top wire hole, described anti-on alter top wire hole for accommodating anti-on alter jackscrew.
Combustion soaking the most according to claim 1/fireflood Casing head of borehole, it is characterised in that the outside of described first flange
Also include that anti-rotation top wire hole, described anti-rotation top wire hole are used for housing anti-rotation jackscrew.
Combustion soaking the most according to claim 2/fireflood Casing head of borehole, it is characterised in that the internal diameter of described second flange
More than the external diameter of described hanger upper end, described second flange is engaged with the upper end of described hanger by the second rubber seal
Connect.
Combustion soaking the most according to claim 2/fireflood Casing head of borehole, it is characterised in that described hanger is internal to be arranged
Having helicitic texture, described casing tube is connected with described hanger by the internal helicitic texture arranged of described hanger.
Combustion soaking the most according to claim 1/fireflood Casing head of borehole, it is characterised in that the bottom of described main body is arranged
Having female thread structure, the female thread structure that surface pipe is arranged by described lower body part is connected with described main body.
Combustion soaking the most according to claim 1/fireflood Casing head of borehole, it is characterised in that the both sides of described main body are also wrapped
Include third through-hole and fourth hole, described third through-hole and fourth hole to connect with described first through hole respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620629655.XU CN205778688U (en) | 2016-06-23 | 2016-06-23 | Combustion soaking/fireflood Casing head of borehole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620629655.XU CN205778688U (en) | 2016-06-23 | 2016-06-23 | Combustion soaking/fireflood Casing head of borehole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778688U true CN205778688U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620629655.XU Active CN205778688U (en) | 2016-06-23 | 2016-06-23 | Combustion soaking/fireflood Casing head of borehole |
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| CN (1) | CN205778688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100553A (en) * | 2017-04-01 | 2017-08-29 | 中国石油天然气股份有限公司 | Antisepsis technical method and system |
-
2016
- 2016-06-23 CN CN201620629655.XU patent/CN205778688U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100553A (en) * | 2017-04-01 | 2017-08-29 | 中国石油天然气股份有限公司 | Antisepsis technical method and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |