CN207332779U - Downhole tool - Google Patents
Downhole tool Download PDFInfo
- Publication number
- CN207332779U CN207332779U CN201721076019.XU CN201721076019U CN207332779U CN 207332779 U CN207332779 U CN 207332779U CN 201721076019 U CN201721076019 U CN 201721076019U CN 207332779 U CN207332779 U CN 207332779U
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- China
- Prior art keywords
- main body
- tubular column
- column main
- heating coil
- downhole tool
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- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims description 45
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 2
- 241000191291 Abies alba Species 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 239000003921 oil Substances 0.000 description 12
- 238000007664 blowing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 244000147058 Derris elliptica Species 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model provides a downhole tool, include: the pipe column comprises a pipe column body, wherein one end of the pipe column body is provided with an extrusion inlet which is used for extruding plugging removal liquid, and the pipe column body is provided with at least one-way valve which is used for plugging removal liquid flowing from the inside of the pipe column body to the outside of the pipe column body; an installation head is arranged at one end of the outside of the pipe column body, which is close to the extrusion inlet, and the installation head is used for clamping the pipe column body on the Christmas tree. The utility model provides a downhole tool breaks into through crowded income of income and removes stifled liquid for it flows from bottom to top via the well head to remove stifled liquid, promotes and knows stifled effect.
Description
Technical field
The utility model embodiment is related to oil exploitation technology, more particularly to a kind of downhole tool.
Background technology
With the development of petroleum industry, important component of the oil exploitation technology as petroleum industry, what it was faced asks
Topic is also taken seriously further.In oil recovery process, the blockage problem caused by the characteristic and recovery method of crude oil influences normal
The progress of oil extraction operation, and oil security is threatened, it is the major issue that oil extraction operation needs to solve.
Currently for the crude oil of different qualities, solve the problems, such as that blocking used method is：By squeezing into solution from well head
Stifled liquid carries out de-plugging.
It is bad using the above method, plugging removal effect.
Utility model content
The utility model provides a kind of downhole tool, to solve the blockage problem faced in existing oil recovery technique.
The utility model provides a kind of downhole tool, including：
Tubular column main body, one end of the tubular column main body, which is provided with, squeezes into mouth, and the mouth of squeezing into is squeezed into for de-plugging liquid, institute
State tubular column main body and be provided with least one check valve, the check valve is flowed to for the de-plugging liquid out of described tubular column main body
Outside the tubular column main body；The tubular column main body is outer to be additionally provided with mounting head close to described one end for squeezing into mouth, and the mounting head is used
In the tubular column main body is arranged in production tree；
The tubular column main body is provided with least one set of first heating coil, and first heating coil is set around the tubing string
Body.
Optionally, the check valve is arranged at the other end of the tubular column main body.
Optionally, the check valve is arranged at the side wall of the tubular column main body.
Optionally, the check valve is at least two, and at least two check valve is along the side wall of the tubular column main body
Axially it is uniformly arranged.
Optionally, the check valve is at least two, and at least two check valve is along the side wall of the tubular column main body
Circumferencial direction is uniformly arranged.
Optionally, first heating coil is at least two groups, and at least two group of first heating coil is along the tubing string
The axial direction of body is uniformly arranged.
Optionally, the downhole tool, further includes：
Second heating coil, second heating coil are arranged at the bottom of the tubular column main body.
Optionally, pipe used for transmission line is also embedded with the tubular column main body side wall, the pipe used for transmission line is used to wear
If power transmission line, the power transmission line is connected with first heating coil and/or the second heating coil, for being heated to described first
Coil pipe and/or the power supply of the second heating coil.
Downhole tool provided by the utility model, is provided with by one end of tubular column main body and squeezes into mouth, is squeezed into mouth and is used to solve
Stifled liquid is squeezed into, and tubular column main body is provided with least one check valve, and check valve flows to institute for de-plugging liquid out of tubular column main body
State outside tubular column main body；Tubular column main body is outer to be additionally provided with mounting head close to the one end for squeezing into mouth, and mounting head is used for the tubing string sheet
Body is arranged in production tree, which works in underground, squeezes into de-plugging liquid by squeezing into mouth, de-plugging liquid is in high-pressure pump
Under pump-in pressure effect, flowed out to from check valve outside tubular column main body, due to being subject to blowing pressure to act on outside tubular column main body so that
De-plugging liquid is from bottom to top flowed via well head, dissolved dilution is carried out to nearly well head tamper, to solve to produce in oil recovery process
Clogging, it is ensured that oil extraction operation is normally carried out.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of one embodiment of the utility model downhole tool；
Fig. 2 is the structure diagram of another embodiment of the utility model downhole tool；
Fig. 3 is the structure diagram of the utility model downhole tool another embodiment；
Fig. 4 is the structure diagram of the another embodiment of the utility model downhole tool；
Fig. 5 is the structure diagram of the another embodiment of the utility model downhole tool；
Fig. 6 is the structure diagram of the another embodiment of the utility model downhole tool；
Fig. 7 is the structure diagram of the another embodiment of the utility model downhole tool；
Fig. 8 is the structure diagram of the another embodiment of the utility model downhole tool；
Fig. 9 is the structure diagram of the another embodiment of the utility model downhole tool.
Reference numeral
1：Tubular column main body；
2：Squeeze into mouth；
3：Ball-and-seat；
4：Mounting head；
5：Squeeze into connector；
6：Pipe used for transmission line；
7：First heating coil；
8：Second heating coil.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without creative efforts, belongs to
The scope of the utility model protection.
The downhole tool of the offer of the utility model, recovers the oil suitable for flowing well.Downhole tool provided by the utility model,
A unified solution is provided for the blockage problem of multiclass oil reservoir.
Fig. 1 is the structure diagram for the downhole tool that the utility model embodiment one provides.As shown in Figure 1, the present embodiment
The downhole tool of offer, including：
Tubular column main body 1, one end of the tubular column main body 1, which is provided with, squeezes into mouth 2, and the mouth 2 of squeezing into is squeezed for de-plugging liquid
Enter, the tubular column main body 1 is provided with least one check valve 3 (in Fig. 1 using 1 check valve as exemplify), and the check valve 3 is used
It is external that the tubing string sheet 1 is flowed to out of described tubular column main body 1 in the de-plugging liquid；The tubular column main body 1 is outer to squeeze close to described
One end of entrance 2 is additionally provided with mounting head 4, and the mounting head 4 is used to the tubular column main body 1 being arranged in production tree.
Specially：In de-plugging operation process, tubular column main body 1 is stretched into inside the oily cylinder of oil well by well head, passes through tubing string sheet
The mounting head 4 of 1 both sides of body connects fixation with the production tree positioned at oil well top.Optionally, mounting head 4 can be male joint,
Female connector or variable buckle, are clamped with production tree, can also be threaded hole at mounting head 4, by screw with recovering the oil
Tree carries out installation fixation, in this regard, the utility model does not limit.Squeeze into set at mouth 2 and squeeze into connector 5, connect by squeezing into
First 5 connection high-pressure pump, is pumped into de-plugging liquid, de-plugging liquid squeezes into pipe under the action of high-pressure pump, by squeezing into mouth 2 to mouth 2 is squeezed into
Inside column body 1, ball-and-seat 3 is opened under the pressure effect of de-plugging liquid, and de-plugging liquid is flowed out from ball-and-seat 3, reaches tubing string
The outside of body 1, i.e., inside pit shaft, since flowing well down-hole pressure is more than well head, de-plugging liquid is under the effect of blowing pressure, certainly
Lower and upper flowing, flows through at the tamper near well head, the material of blocking is diluted dissolving, dissolved tamper is certainly
Spray under power effect, well head is flowed out, so as to achieve the purpose that de-plugging.
The present embodiment borrows the blowing pressure of flowing well so that de-plugging liquid by the way that de-plugging liquid is squeezed into inside pit shaft
Flowed from bottom to top in well, flow through the tamper of well head, dissolve the tamper at nearly well head so as to carry out de-plugging.And existing skill
Art is to squeeze into de-plugging liquid from top to bottom by well head, and since well head tamper is subject to downward entry pressure, and flowing well is certainly
Blowing pressure phase separation on down so that originally more fluffy tamper becomes fine and close consolidation, increases de-plugging difficulty, increases
De-plugging cost is added.And scheme provided in this embodiment is by de-plugging liquid pump by downhole tool provided by the utility model
Enter in well, utilize the blowing pressure of flowing well so that the flowing of de-plugging liquid from bottom to top, avoid so that tamper be subject to
Lower entry pressure and the from top to bottom effect of blowing pressure and become fine and close, and de-plugging liquid is easier to infiltration in tamper,
So that de-plugging work is easy to carry out, de-plugging cost is reduced, improves plugging removal effect.
On the basis of embodiment illustrated in fig. 1, the position implementation that check valve 3 can be set is including but not limited to as follows
It is several：
A kind of possible implementation：
The check valve 3 is arranged at the other end of the tubular column main body 1, such as：The bottom of the tubular column main body is arranged at,
As shown in Figure 1.
Ball-and-seat 3 is arranged on the bottom of tubular column main body 1, and can making deciphering liquid effects, increasing can in higher depth position
The depth bounds of de-plugging.
Alternatively possible implementation：
Check valve 3 is arranged at the side wall of the tubular column main body 1, wherein, check valve 3 can be one or more, unidirectionally
When valve 3 is arranged to 1, as shown in Figure 2；When check valve 3 sets at least two, the position relationship of at least two check valves 3 includes
But unlimited following relation：A kind of is to be uniformly arranged along the axial direction of the side wall of the tubular column main body 1, as shown in Figure 3 (with 2 in Fig. 3
Check valve is to exemplify)；Another kind is to be uniformly arranged along the circumferencial direction of the side wall of the tubular column main body 1, (Fig. 4 as shown in Figure 4
In using 2 check valves to exemplify)；Another can be arranged on tubular column main body 1 at least two check valve 3 with uneven
Side wall on, i.e., at least two check valves 3 can not also be uniformly arranged on the circumference of 1 different depth of tubular column main body.
As shown in Fig. 2, check valve 3 is arranged on the side wall of tubular column main body 1, the passage that flows through of blockages relieving fluid body can be caused not have to
By the bottom of tubular column main body 1, directly flowed out from the side wall of tubular column main body 1.1 bottom of tubular column main body is arranged on relative to check valve 3
The situation in portion, being pumped into the pressure of de-plugging liquid can reduce, in the case of tamper is shallower, can either effective de-plugging, reduce
Pump-in pressure can reduce cost and easily operated again.
As shown in figure 3, the side wall that at least two check valves 3 are uniformly arranged on tubular column main body 1 is axial, de-plugging liquid is added
The optional depth of the passage flowed through, can select to open the check valve of corresponding height in operation process according to the depth of tamper
3.When block object location it is shallower when, the check valve 3 of shallower position can be opened so that the channel depth that de-plugging liquid flows through compared with
It is shallow, while effective de-plugging, reduce the pump-in pressure of high-pressure pump, can reach and save energy consumption, reduce cost and operate letter
Single purpose；When tamper is deeper, the check valve 3 of deep part can be opened, by increasing pump-in pressure so that blockages relieving fluid
The channel depth that body flows through is deeper, and effective de-plugging is carried out to deeper blocking.
As shown in figure 4, at least two check valves 3 are uniformly arranged along the side wall circumferencial direction of tubular column main body 1 so that blockages relieving fluid
Body can be more fully the contact area for being distributed in shaft in wall surrounding, adding de-plugging liquid and tamper so that well
The de-plugging of mouth tamper is more abundant, improves plugging removal effect.
Non-uniform setting can also be used along at least two axial arranged ball-and-seats 3 of tubular column main body 1 in the present embodiment,
Also, non-uniform setting can also be used along at least two ball-and-seats 3 of 1 side wall circumference of tubular column main body, what it set
Position can be arranged according to actual use demand, this utility model is not limited.
On the basis of Fig. 1 embodiments, at least one set of first heating coil 7 can be set, first heating coil 7 around
Arranged on the tubular column main body 1.Wherein, the first heating coil 7 can be it is one or more groups of, when the first heating coil 7 be 1 group when,
As shown in Figure 5；At least two groups of 7 position relationship of the first heating coil includes but not limited to following relation：One kind is at least two
The first heating coil 7 of group is uniformly distributed along the axial direction of tubular column main body 1, (is with two group of first heating coil 7 in Fig. 6 as shown in Figure 6
Exemplify).
In the present embodiment, heated by being powered to the first heating coil 7 so that the blockages relieving fluid around tubular column main body 1
Temperature raises, and the solubility higher when dissolving tamper, improves plugging removal effect；Further, the first heating coil 7 can be with
Directly neighbouring tamper is heated so that tamper melts or volatilization, further enhances plugging removal effect；Another side
Face, in oil recovery process, the first heating pipe dish 7 can also heat the crude oil in exploitation, so as to get up to the crude oil temperature of well head
Degree rise, reduces the possibility of blocking.
Above-mentioned at least two groups of the first heating coil 7 can be distributed in the axial direction of tubular column main body 1, its distribution can be uniform
Distribution or uneven distribution, do not limit this utility model.The present embodiment can according to the depth of tamper,
By the first heating coil 7 for selecting unlatching different depth to set, the de-plugging of different depth tamper is carried out, so as to rationally utilize
Resource, it is cost-effective.
Fig. 7 is the structure diagram of another embodiment of the utility model, and the second heating coil 8 is arranged at the tubular column main body
1 bottom.
Second heating coil 8 can be arranged on to the bottom of tubular column main body 1 in the present embodiment, increase and cause the utility model
Set more flexible.
The another embodiment of the utility model is, can also be by least one ball-and-seat 3 and at least one set of first heating dish
7 and/or second heating coil 8 of pipe combines, its arrangement can also combine the arrangement of above-described embodiment, to this this practicality
It is new not to be limited, as shown in Figure 8 (in Fig. 8 using two check valves and three groups of heating coils as exemplify).
In the present embodiment, the compatible check valve 3 of multiple depth and position, a variety of first heating coils 7 and/or second
The combination of heating coil 8, according to different blocking scenes to 3 and first heating coil 7 of ball-and-seat and/or the second heating dish
Pipe 8 makes choice use so that and downhole tool provided by the utility model more flexible can be applied to different stopping states,
While effective de-plugging, resource is rationally made full use of.
On the basis of above-described embodiment, pipe 6 used for transmission line can also be embedded in 1 side wall of tubular column main body, it is described
Pipe 6 used for transmission line is used to wear power transmission line, and the power transmission line connects with 7 and/or second heating coil 8 of the first heating coil
Connect, for powering to 7 and/or second heating coil 8 of the first heating coil.As shown in figure 9, Fig. 9 is the utility model well
The structure diagram of the lower another embodiment of instrument.
In the present embodiment, pipe used for transmission line is arranged in tubular column main body side wall, it is possible to reduce make transmission line of electricity underground
The generation of the accidents such as winding occurs during industry, to improve the security of circuit operation so that the downhole tool of the utility model
Integrated degree higher.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify the technical solution described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical solution of type.
Claims (8)
- A kind of 1. downhole tool, it is characterised in that including：Tubular column main body, one end of the tubular column main body, which is provided with, squeezes into mouth, and the mouth of squeezing into is squeezed into for de-plugging liquid, the pipe Column body is provided with least one check valve, described in the check valve is flowed to out of described tubular column main body for the de-plugging liquid Outside tubular column main body；The tubular column main body is outer to be additionally provided with mounting head close to described one end for squeezing into mouth, and the mounting head is used for will The tubular column main body is arranged in production tree；The tubular column main body is provided with least one set of first heating coil, first heating Coil pipe is set around the tubular column main body.
- 2. downhole tool according to claim 1, it is characterised in that the check valve is arranged at the another of the tubular column main body One end.
- 3. downhole tool according to claim 1, it is characterised in that the check valve is arranged at the side of the tubular column main body Wall.
- 4. downhole tool according to claim 3, it is characterised in that the check valve is at least two, described at least two A check valve is uniformly arranged along the axial direction of the side wall of the tubular column main body.
- 5. downhole tool according to claim 3, it is characterised in that the check valve is at least two, described at least two A check valve is uniformly arranged along the circumferencial direction of the side wall of the tubular column main body.
- 6. downhole tool according to claim 1, it is characterised in that first heating coil is at least two groups, described At least two group of first heating coil is uniformly arranged along the axial direction of the tubular column main body.
- 7. downhole tool according to claim 1, it is characterised in that further include：It is arranged at the second heating coil of the tubular column main body bottom.
- 8. according to claim 1-7 any one of them downhole tools, it is characterised in that also embedded in the tubular column main body side wall Have a pipe used for transmission line, the pipe used for transmission line is used to wearing power transmission line, the power transmission line and first heating coil and/ Or second heating coil connection, for first heating coil and/or the second heating coil power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721076019.XU CN207332779U (en) | 2017-08-25 | 2017-08-25 | Downhole tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721076019.XU CN207332779U (en) | 2017-08-25 | 2017-08-25 | Downhole tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207332779U true CN207332779U (en) | 2018-05-08 |
Family
ID=62374541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721076019.XU Active CN207332779U (en) | 2017-08-25 | 2017-08-25 | Downhole tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207332779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424326A (en) * | 2017-08-25 | 2019-03-05 | 中国石油天然气股份有限公司 | Downhole tool |
-
2017
- 2017-08-25 CN CN201721076019.XU patent/CN207332779U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424326A (en) * | 2017-08-25 | 2019-03-05 | 中国石油天然气股份有限公司 | Downhole tool |
| CN109424326B (en) * | 2017-08-25 | 2024-07-26 | 中国石油天然气股份有限公司 | Downhole tool |
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| GR01 | Patent grant |