CN206267836U - Producing well wax-proofing apparatus and its system - Google Patents
Producing well wax-proofing apparatus and its system Download PDFInfo
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- CN206267836U CN206267836U CN201621406636.7U CN201621406636U CN206267836U CN 206267836 U CN206267836 U CN 206267836U CN 201621406636 U CN201621406636 U CN 201621406636U CN 206267836 U CN206267836 U CN 206267836U
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- intervalve
- inner tube
- producing well
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Abstract
The utility model is related to oil extraction in oil field, gas production flow string technical field, more particularly to a kind of producing well wax-proofing apparatus and its system.The producing well wax-proofing apparatus include intervalve and inner tube, and the outside of said inner tube is enclosed within outside the intervalve；The bottom of said inner tube is connected by hanger with the intervalve, and said inner tube, the intervalve and the hanger form closed incubation cavity；The incubation cavity is used to fill insulation gas；The hanger is internally provided with the flow controller that can be dismounted, and the flow controller is used for the distribution channel throttled between said inner tube inside and the intervalve inside.The producing well wax control system includes producing well wax-proofing apparatus and working rig.The purpose of this utility model is to provide producing well wax-proofing apparatus and its system, to solve the technical problem of the pipe string internal wall wax deposition of producing well present in prior art.
Description
Technical field
The utility model is related to oil extraction in oil field, gas production flow string technical field, more particularly to a kind of producing well wax control dress
Put and its system.
Background technology
Oil recovery that development of fields is bored, gas recovery well belong to producing well.
Wherein, in process of production, tubing string wax deposition is most common phenomenon to gas well, wax deposition to a certain extent when, it is necessary to stop
Product carries out down-hole string wax removal operation, has a strong impact on the normal production of gas well.
When flow controller is arranged on the well head of gas well, hydraulic oil gas passes through largely to be absorbed heat during flow controller, causes well head attached
Nearly Hydrate Plugging, while cannot also prevent down-hole string inwall wax deposition.
When flow controller is arranged on the tubing string of the underground certain depth of gas well, although when hydraulic oil gas passes through flow controller
Heat absorption has obtained the compensation of stratum heat, but oil gas is by up along flow string after flow controller, with temperature in wellbore step-down, oil gas
Temperature step-down, cannot equally prevent the generation of wax and water and thing in oil gas.
Oil well paraffinication is also there is a problem of for a long time in oilfield development process, when crude oil is extracted into ground from underground, due to
The effusion and expansion of dissolved gas and crude oil temperature is gradually reduced, wax just pressed from crude oil molecular weight size order crystallization analysis
Go out, and be then deposited on tube inner wall, cause pit shaft to narrow, oil well output reduction can also block oil pipe and cause oil when serious
Well stops production.
The pipe string internal wall wax deposition of the producing wells such as oil well, gas well is effectively prevented currently without preferable technology.
Utility model content
The purpose of this utility model is to provide producing well wax-proofing apparatus and its system, to solve present in prior art
The technical problem of the pipe string internal wall wax deposition of producing well.
The producing well wax-proofing apparatus that the utility model is provided, including intervalve and inner tube, are enclosed within described outside the intervalve
The outside of inner tube；
The bottom of said inner tube is connected by hanger with the intervalve, and said inner tube, the intervalve and described
Hanger forms closed incubation cavity；The incubation cavity is used to fill insulation gas；
The hanger is internally provided with the flow controller that can be dismounted, and the flow controller is used to throttling inside said inner tube
With the distribution channel between the intervalve inside.
Further, seal head is installed with the hanger, said inner tube is plugged in the seal head.
Further, flow controller seating nipple, the flow controller work are provided between the hanger and the flow controller
Cylinder is fixedly connected with the hanger, and the flow controller forms inserting and is connected with the flow controller seating nipple.
Further, described producing well wax-proofing apparatus also include being enclosed within top four-way and the overcoat outside said inner tube outward
Middle part four-way outside the intervalve, the top four-way is arranged on above the middle part four-way；
It is tightly connected by first seal between the middle part four-way and said inner tube；The top four-way is interior with described
The inside connection of pipe；The middle part four-way is connected with the incubation cavity.
Further, the first seal is crimped between the top four-way and middle part four-way；
The first seal is boll-weevil hanger.
Further, described producing well wax-proofing apparatus also include sleeve pipe, and the outer of the intervalve is enclosed within outside described sleeve pipe
Portion；The bottom of described sleeve pipe is tightly connected by packer with the intervalve.
Further, bottom four-way is cased with outside described sleeve pipe, and the bottom four-way is connected with described sleeve pipe；
The middle part four-way is arranged on above the bottom four-way.
Further, the upper end of the intervalve is installed with middle pipe hanger；Along the radial direction of the intervalve, the intervalve
Extension protrudes from the intervalve；The middle pipe hanger is crimped between the middle part four-way and the bottom four-way.
Further, the bottom of the intervalve is installed with and is located joint；
Said inner tube is coiled tubing, and the intervalve is oil pipe.
The producing well wax control system that the utility model is provided, including described producing well wax-proofing apparatus；Also include working rig；
The working rig is connected with said inner tube, the product for receiving said inner tube ejection.
Producing well wax-proofing apparatus and its system that the utility model is provided, including intervalve and inner tube, by inner tube, centre
Pipe and hanger form closed incubation cavity, and insulation gas is filled in incubation cavity, so that the oil gas after being throttled through flow controller
It is up to during up to well head through inner tube, the heat in oil gas scatters and disappears very little, the wax in oil gas is not separated out；Again due to the internal diameter of inner tube
Relatively small, oil gas is accelerated through flow controller to well head speed uplink, and the time is greatly reduced, and until well head, oil gas temperature is had
Effect retains, and the wax in oil gas enters in manifold of ground with hydrate there is no Opportunity formation wax deposition.Producing well wax-proofing apparatus and
Its system efficiently solves the pipe string internal wall wax deposition of the producing wells such as oil well, gas well, the technical barrier of paraffin blockage occurs；Realize to oil
Insulation of the underground oil gas of the producing wells such as well, gas well in lifting process, is especially suitable for high pressure, high-temperature oil gas flowing well.
Brief description of the drawings
In order to illustrate more clearly of the utility model specific embodiment or technical scheme of the prior art, below will be right
The accompanying drawing to be used needed for specific embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some implementation methods of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the producing well wax-proofing apparatus that the utility model embodiment one is provided；
Fig. 2 is the A areas partial enlarged drawing of the producing well wax-proofing apparatus shown in Fig. 1；
Fig. 3 is the B areas partial enlarged drawing of the producing well wax-proofing apparatus shown in Fig. 1；
Fig. 4 is the structural representation of the producing well wax control system that the utility model embodiment two is provided.
Reference：
1- inner tubes；2- intervalves；21- incubation cavities；
Pipe hanger in the middle of 22-；3- sleeve pipes；4- hangers；
41- seal heads；5- flow controllers；51- flow controller seating nipples；
6- tops four-way；61- middle parts four-way；62- bottoms four-way；
7- first seals；8- packers；9- is located joint；
101- producing well wax-proofing apparatus；102- working rigs.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
It is term " " center ", " on ", D score, "left", "right", " perpendicular, it is necessary to explanation in description of the present utility model
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " are, based on orientation shown in the drawings or position relationship, to be only
Described with simplified for the ease of description the utility model, must had rather than the device or element for indicating or implying meaning specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment one
Referring to shown in Fig. 1-Fig. 3, present embodiments providing a kind of producing well wax-proofing apparatus；Fig. 1 is provided for the present embodiment
The structural representation of producing well wax-proofing apparatus；Fig. 2 is the A areas partial enlarged drawing of the producing well wax-proofing apparatus shown in Fig. 1；Fig. 3 is
The B areas partial enlarged drawing of the producing well wax-proofing apparatus shown in Fig. 1.
Referring to shown in Fig. 1-Fig. 3, the producing well wax-proofing apparatus that the present embodiment is provided, including intervalve 2 and inner tube 1, it is middle
The outside of inner tube 1 is enclosed within outside pipe 2；Further, intervalve 2 is fixed relative to the position of inner tube 1.Preferably, intervalve 2 and inner tube
1 is coaxially disposed.
The bottom of inner tube 1 is connected by hanger 4 with intervalve 2, and inner tube 1, intervalve 2 and hanger 4 form closed
Incubation cavity 21；Incubation cavity 21 is used to fill insulation gas；Further, hanger 4 is fixedly connected with intervalve 2.
Hanger 4 is internally provided with the flow controller 5 that can be dismounted, and flow controller 5 is used for the throttle inside of inner tube 1 and intervalve
Distribution channel between 2 inside.By changing the flow controller 5 of different model, to change the inside of inner tube 1 and the inside of intervalve 2
Between distribution channel size.
Producing well wax-proofing apparatus described in the present embodiment, including intervalve 2 and inner tube 1, by inner tube 1, intervalve 2 and outstanding
Hanging device 4 forms closed incubation cavity 21, and the filling insulation gas in incubation cavity 21, so that the oil gas after being throttled through flow controller 5
It is up to during up to well head through inner tube 1, the heat in oil gas scatters and disappears very little, the wax in oil gas is not separated out；Again due in inner tube 1
Footpath is relatively small, and oil gas is accelerated through flow controller 5 to well head speed uplink, and the time is greatly reduced, and until well head, oil gas temperature is obtained
It is effectively retained, the wax in oil gas enters in manifold of ground with hydrate there is no Opportunity formation wax deposition.The producing well wax control
Device efficiently solves the pipe string internal wall wax deposition of the producing wells such as oil well, gas well, the technical barrier of paraffin blockage occurs；Realize to oil
Insulation of the underground oil gas of the producing wells such as well, gas well in lifting process, is especially suitable for high pressure, high-temperature oil gas flowing well.
In the alternative of the present embodiment, seal head 41 is installed with hanger 4, inner tube 1 is plugged in seal head 41,
I.e. seal head 41 is fixedly installed on hanger 4 near the side of inner tube 1.By seal head 41 with sealed inner tube 1, incubation cavity is prevented
Gas in 21 enters the production of the internal influence oil gas of inner tube 1.
Alternatively, using silica gel, rubber or plastics elastomeric material, its material cost performance is high, moreover it is possible to have for seal head 41
Effect sealed inner tube 1, effectively prevents the gas in incubation cavity 21 from the production of oil gas is influenceed into the inside of inner tube 1.
In the alternative of the present embodiment, flow controller seating nipple 51, flow controller are provided between hanger 4 and flow controller 5
Seating nipple 51 is fixedly connected with hanger 4, flow controller 5 and the dismantled and assembled connection of flow controller seating nipple 51；Preferably, flow controller 5 with
Flow controller seating nipple 51 forms inserting connection.By flow controller seating nipple 51, in order to changing, salvaging flow controller 5, consequently facilitating
The production operation of oil gas.
In the alternative of the present embodiment, the producing well wax-proofing apparatus also include being enclosed within the top four outside inner tube 1 outward
Lead to 6 and the middle part four-way 61 being enclosed within outward outside intervalve 2, top four-way 6 is arranged on above the four-way 61 of middle part.Further,
Top four-way 6 is fixedly connected with inner tube 1, and middle part four-way 61 is fixedly connected with intervalve 2.
It is tightly connected by first seal 7 between middle part four-way 61 and inner tube 1.
Top four-way 6 is connected with the inside of inner tube 1, and top four-way 6 is not connected with incubation cavity 21；Top four-way 6 is oil
The production pipeline of gas.
Middle part four-way 61 is connected with incubation cavity 21, and middle part four-way 61 is not connected with the inside of inner tube 1, and middle part four-way 61 is used
In to offer insulation gas in incubation cavity 21.Namely inner tube 1, intervalve 2, hanger 4 and first seal 7 form closed guarantor
Warm chamber 21.By top four-way 6, middle part four-way 61 conveniently to assemble intervalve 2 and inner tube 1, and then it is easy to assembling to give birth to
Produce well wax-proofing apparatus.
Preferably, first seal 7 is boll-weevil hanger.Boll-weevil hanger has is easy to operation, changes that well head speed is fast, peace
Congruent advantage, is a kind of sealing means for commonly using.
Preferably, first seal 7 is crimped between top four-way 6 and middle part four-way 61；In order to install the first sealing
Part 7, and then be easy to assemble producing well wax-proofing apparatus.
In the alternative of the present embodiment, the producing well wax-proofing apparatus also include being enclosed within intervalve 2 outside sleeve pipe 3, sleeve pipe 3
Outside；The bottom of sleeve pipe 3 is tightly connected by packer 8 with intervalve 2.By sleeve pipe 3, in order to remove intervalve 2.It is logical
Packer 8 is crossed, to avoid cavity of the underground oil gas between sleeve pipe 3 and intervalve 2 from escaping.
Preferably, intervalve 2 and sleeve pipe 3 are coaxially disposed.
Preferably, the top of sleeve pipe 3 is tightly connected by seal with intervalve 2, so that between sleeve pipe 3 and intervalve 2
Cavity be closed cavity.
It should be noted that packer 8 can reduce Oil/gas Well packing plug water construction operation, no killing well can be conveniently realized not
Open flow operation, and two-way can bear high pressure, long service life.
In the alternative of the present embodiment, bottom four-way 62 is cased with outside sleeve pipe 3, and bottom four-way 62 is connected with sleeve pipe 3, in
Portion's four-way 61 is arranged on above bottom four-way 62.By bottom four-way 62 conveniently to assemble intervalve 2 and sleeve pipe 3,
And then be easy to assemble producing well wax-proofing apparatus.
Further, collar cavities are formed between sleeve pipe 3 and intervalve 2.Bottom four-way 62, and bottom are cased with outside sleeve pipe 3
Four-way 62 is connected with collar cavities, and bottom four-way 62 is not connected with the inside of incubation cavity 21, inner tube 1.
In the alternative of the present embodiment, the upper end of intervalve 2 is installed with middle pipe hanger 22；Along the radial direction of intervalve 2, in
Between pipe hanger 22 protrude from intervalve 2；Pipe hanger 22 in the middle of being crimped between middle part four-way 61 and bottom four-way 62.By middle pipe hanger
22, preferably to assemble intervalve 2, to avoid incubation cavity 21 from being connected with the cavity of sleeve pipe 3, and then reduce temperature in incubation cavity 21
It is lost in.Preferably, intervalve 2 is integrally formed with middle pipe hanger 22.
In the alternative of the present embodiment, the bottom of intervalve 2 is installed with and is located joint 9；By being located joint 9, in being
Between pipe 2 provide switch selection；The keying of joint 9 can be located by control on ground and control whether underground oil gas goes upward to centre
Inside pipe 2, and then control whether underground oil gas through flow controller 5 to inner tube 1 and is up to up to well head.
Alternatively, inner tube 1 is coiled tubing.Coiled tubing is the tubing made of low-carbon alloy steel, there is good flexibility,
Also known as coiled tubing, a roll of coiled tubing several kms long；Conventional oil pipe can be replaced carries out many operations, and continuous oil pipe operation sets
The characteristics of for having Operating Pressure, continuously removing, equipment volume is small, and duty cycle is fast, low cost；Also have operation quickly high
The advantages of effect, the Low Damage to stratum, low cost and application value, are widely applied to oil gas field well workover, drilling well, completion, well logging
Deng.
Alternatively, intervalve 2 is oil pipe.Oil pipe is that former oil and gas is transported to ground from oil-gas Layer after the completion of probing
The pipeline of table, is used to the pressure for bearing to be produced in recovery process.
In order to more be apparent from the present embodiment, the producing well wax-proofing apparatus implementation process and work are illustrated briefly below
Make principle：
Pass through coiled tubing (this implementation in oil pipe (intervalve 2 in the present embodiment) interior certain depth of former completion tubular column
Inner tube 1 in example) under enter and set the hanger 4 with flow controller seating nipple 51, seal head 41, in flow controller seating nipple 51
Flow controller 5 is in sealed condition, by zonal isolation.
Act coiled tubing, enter coiled tubing down again, the bottom of the coiled tubing can be with grafting seal head 41；Continuous oil
Pipe it is lower to docking location when (not yet docked with seal head 41), pump into separation gas from middle part four-way 61, by oil pipe with it is continuous
The outer annulus fluid of oil pipe is clamp-oned in coiled tubing；Afterwards, continue to transfer coiled tubing, so that coiled tubing bottom and seal head 41
Docking realizes sealing with locking.
Sat in well head and hang coiled tubing and cut off coiled tubing；So that the coiled tubing being removed can be reused.
Seated production wellhead, salvages underground throttle device 5, in coiled tubing by steel wire operation or small continuous oil pipe operation
Pressurization coordinates, and takes out flow controller 5.
After changing flow controller 5, again under lower going-into-well, well head of sitting straight is gone into operation.
Oil gas along coiled tubing it is up when, due to coiled tubing is outer and oil pipe in heat-insulated gas insulation under, oil gas heat
Scatter and disappear relatively slow, but because coiled tubing internal diameter is relatively small, equivalent oil gas throttle nozzle mouthful to well head speed uplink is accelerated, and the time is big
Big to reduce, until well head, oil gas temperature is effectively retained, and wax is put into manifold of ground with hydrate there is no Opportunity formation
In.
Embodiment two
Embodiment two provides a kind of producing well wax control system, and the embodiment includes the producing well wax control described in embodiment one
Device, the technical characteristic of the producing well wax-proofing apparatus disclosed in embodiment one is also applied for the embodiment, and embodiment one is disclosed
Producing well wax-proofing apparatus technical characteristic be not repeated description.
The structural representation of the producing well wax control system that Fig. 4 is provided for the present embodiment.
It is shown in Figure 4 with reference to Fig. 1-Fig. 3, the producing well wax control system that the present embodiment is provided, including producing well wax control dress
Put 101；Also include working rig 102.
Working rig 102 is connected with inner tube 1, for receiving the products such as oil, gas that inner tube 1 sprays.Further, working rig
102 are connected by top four-way 6 with inner tube 1.
The system of producing well wax control described in the present embodiment includes intervalve 2 and inner tube 1, by inner tube 1, intervalve 2 and outstanding
Hanging device 4 forms closed incubation cavity 21, and the filling insulation gas in incubation cavity 21, efficiently solves the production such as oil well, gas well
The pipe string internal wall wax deposition of well, the technical barrier that paraffin blockage occurs；Realize to the underground oil gas of the producing wells such as oil well, gas well in lifting
During insulation, be especially suitable for high pressure, high-temperature oil gas flowing well.The producing well wax control system has raw described in embodiment one
Produce the advantage of well wax-proofing apparatus 101, other advantages of the producing well wax-proofing apparatus 101 disclosed in embodiment one are herein no longer
Repeated description.
Finally it should be noted that：Various embodiments above is only used to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail to the utility model with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of producing well wax-proofing apparatus, it is characterised in that including intervalve and inner tube, said inner tube is enclosed within outside the intervalve
Outside；
The bottom of said inner tube is connected by hanger with the intervalve, and said inner tube, the intervalve and the suspension
Device forms closed incubation cavity；The incubation cavity is used to fill insulation gas；
The hanger is internally provided with the flow controller that can be dismounted, and the flow controller is used for throttle said inner tube inside and institute
State the distribution channel between intervalve inside.
2. producing well wax-proofing apparatus according to claim 1, it is characterised in that be installed with seal head on the hanger,
Said inner tube is plugged in the seal head.
3. producing well wax-proofing apparatus according to claim 1, it is characterised in that between the hanger and the flow controller
Flow controller seating nipple is provided with, the flow controller seating nipple is fixedly connected with the hanger, the flow controller and the throttling
Device seating nipple forms inserting connection.
4. producing well wax-proofing apparatus according to claim any one of 1-3, it is characterised in that also including being enclosed within outward in described
Top four-way outside pipe and the middle part four-way being enclosed within outward outside the intervalve, the top four-way are arranged on the middle part four
Above logical；
It is tightly connected by first seal between the middle part four-way and said inner tube；The top four-way and said inner tube
Inside connection；The middle part four-way is connected with the incubation cavity.
5. producing well wax-proofing apparatus according to claim 4, it is characterised in that the first seal is crimped on described
Between portion's four-way and middle part four-way；
The first seal is boll-weevil hanger.
6. producing well wax-proofing apparatus according to claim 4, it is characterised in that also including sleeve pipe, be enclosed within outside described sleeve pipe
The outside of the intervalve；The bottom of described sleeve pipe is tightly connected by packer with the intervalve.
7. producing well wax-proofing apparatus according to claim 6, it is characterised in that bottom four-way is cased with outside described sleeve pipe, and
The bottom four-way is connected with described sleeve pipe；
The middle part four-way is arranged on above the bottom four-way.
8. producing well wax-proofing apparatus according to claim 7, it is characterised in that the upper end of the intervalve is installed with centre
Pipe hanger；Along the radial direction of the intervalve, the middle pipe hanger protrudes from the intervalve；The middle part four-way and the bottom four
The middle pipe hanger is crimped between logical.
9. producing well wax-proofing apparatus according to claim 1, it is characterised in that the bottom of the intervalve is installed with and is located
Joint；
Said inner tube is coiled tubing, and the intervalve is oil pipe.
10. a kind of producing well wax control system, it is characterised in that including the producing well wax control dress described in claim any one of 1-9
Put；Also include working rig；
The working rig is connected with said inner tube, the product for receiving said inner tube ejection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406636.7U CN206267836U (en) | 2016-12-20 | 2016-12-20 | Producing well wax-proofing apparatus and its system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406636.7U CN206267836U (en) | 2016-12-20 | 2016-12-20 | Producing well wax-proofing apparatus and its system |
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| Publication Number | Publication Date |
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| CN206267836U true CN206267836U (en) | 2017-06-20 |
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ID=59047082
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481312A (en) * | 2016-12-20 | 2017-03-08 | 西安迈克斯石油技术有限公司 | Producing well wax-proofing apparatus and its system |
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2016
- 2016-12-20 CN CN201621406636.7U patent/CN206267836U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481312A (en) * | 2016-12-20 | 2017-03-08 | 西安迈克斯石油技术有限公司 | Producing well wax-proofing apparatus and its system |
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