CN209354080U - Well flushing equipment - Google Patents
Well flushing equipment Download PDFInfo
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- CN209354080U CN209354080U CN201821346618.3U CN201821346618U CN209354080U CN 209354080 U CN209354080 U CN 209354080U CN 201821346618 U CN201821346618 U CN 201821346618U CN 209354080 U CN209354080 U CN 209354080U
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- hole
- well
- tubular body
- washing equipment
- well washing
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 93
- 238000005406 washing Methods 0.000 claims abstract description 63
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 12
- 230000001976 improved effect Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
Abstract
The application discloses well washing equipment belongs to mechanical technical field. The well-flushing apparatus comprises: well-flushing pump and well-flushing connect, well-flushing connects and includes: the well washing pump is communicated with one end of the inner pipe, one end of the tubular body can be communicated with the other end of the inner pipe, and a baffle plate which axially divides the tubular body into two parts is arranged in the tubular body; through holes are formed in the side walls of the two parts, one end, close to the outer side face of the tubular body, of each through hole inclines towards the baffle, and any two through holes do not intersect. The well washing effect of well washing equipment is poor has been solved to this application, has improved well washing equipment's well washing effect. The application is for a well-flushing apparatus.
Description
Technical field
This application involves field of mechanical technique, in particular to a kind of well washing equipment.
Background technique
Well washing equipment is mainly used for cleaning well during workover treatment, to remove between well inner sleeve and inner tube
Annular space (namely annular space) in object to be removed.
In the related technology, well washing equipment includes flushing pump, and there are mainly two types of the well-flushing modes of the usually well washing equipment.Its
In, in a kind of well-flushing mode, flushing pump is connect with inner tube, for high pressure flushing liquid to be inputted annular space from inner tube, to shoot down ring
Object to be removed in sky, and carry the object to be removed and return out from casing to outside well.This well-flushing mode referred to as just washes mode,
But the ability that this well-flushing mode carries outside object to well to be removed is weaker.In another well-flushing mode, flushing pump and casing
Connection to shoot down the object to be removed in annular space, and carries the object to be removed for high pressure flushing liquid to be inputted annular space from casing
Body returns out from inner tube to outside well.This well-flushing mode is known as backwash mode, but this well-flushing mode treats hitting for removal object
It is poor to fall effect.
As it can be seen that the well washing effect of well washing equipment is poor in the related technology, therefore, need a kind of with preferable well washing effect
Well washing equipment.
Utility model content
This application provides a kind of well washing equipments, can solve the problem of the well washing effect difference of well washing equipment, the technology
Scheme is as follows:
A kind of well washing equipment is provided, the well washing equipment includes: flushing pump and Flush coupling, the Flush coupling packet
It includes: tubular body,
The flushing pump is connected to one end of inner tube, and one end of the tubular body can be connected to the other end of inner tube,
The baffle for being divided into two parts in the axial direction is provided in the tubular body；
Through-hole is provided on the side wall of described two parts, and in each through-hole on the outside of the tubular body
The one end in face is tilted to the baffle, and through-hole described in any two is non-intersecting.
Optionally, the angle of the axis of the axis and tubular body of each through-hole is respectively less than 60 degree.
Optionally, the axis of through-hole described in any two is identical as the angle of the axis of the tubular body.
Optionally, the orthographic projection of the through-hole on described two parts on the reference plane is intervally arranged one by one, the reference
Axis of the plane perpendicular to the tubular body.
Optionally, orthographic projection of the through-hole on described two parts in the reference planes is uniformly arranged.
Optionally, described two parts include: first part and second part,
One end of the tubular body is the one end of the first part far from the second part, in the first part
The equivalent orifice area of the through-hole is less than the equivalent orifice area of the through-hole on the second part.
Optionally, the through-hole in described two parts on each part is respectively positioned on the same axial position of the tubular body
It sets.
Optionally, the through-hole there are three being respectively provided on each part in described two parts.
Optionally, the well washing equipment further include: grappling tool, the grappling tool include: circulation duct, and setting
The other end of fishing pawl in described circulation duct one end, the tubular body can be connected to the other end of the circulation duct.
Optionally, the inner wall of one end of the tubular body is provided with taper thread, and the outer wall of the other end is provided with taper thread.
Technical solution bring beneficial effect provided by the present application includes at least:
It include Flush coupling in well washing equipment provided by the embodiment of the utility model, and in the tubular body of the Flush coupling
It is provided with the baffle for being divided into two parts in the axial direction, and the through-hole being separately positioned in two partial sidewalls.?
During well-flushing, flushing fluid can inject annular space by the through-hole in two partial sidewalls by inner tube, equivalent due to through-hole
Orifice area is less than the circulation area of inner tube, therefore flushing fluid can regard what flushing fluid was pressurized as from the process that inner tube injects annular space
Flushing fluid can be improved to the carrying capacity of the object to be removed in annular space in process, the process.Again since well washing equipment is in well-flushing,
Flushing fluid can enter in well from inner tube, without entering in well from annular space, therefore, avoid flushing fluid and deposit on stratum or casing
Occur the case where a large amount of leakages at crack, ensure that there can be enough pressure when flushing fluid enters annular space, and then guarantees
Flushing fluid has stronger impact force, to clean to the object to be removed in well.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of well washing equipment provided by the embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of Flush coupling provided by the embodiment of the utility model；
The structural schematic diagram that Fig. 3 is section CC ' where through-hole in first part provided by the embodiment of the utility model；
The structural schematic diagram that Fig. 4 is section DD ' where through-hole on second part provided by the embodiment of the utility model.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application embodiment party
Formula is described in further detail.
Well washing equipment plays an important role in the process of workover treatment, the well-flushing mode of well washing equipment in the related technology
Mainly just washing and backwash, still, when there is following two kind situation during workover treatment, well washing equipment using just washing or
The well-flushing mode of backwash will affect the effect of well-flushing.Both of these case is respectively: first is that carrying out set miller sequence using drill string
When operation, since drill string needs outside well head, prevent well head is from sealing, therefore the well-flushing mode of backwash cannot be used.But
It is, if tending not to reach the needs that carrying object to be removed returns out well head, affecting well-flushing at this time using the well-flushing mode just washed
Effect.Second is that when stratum or casing are there are in the case where crack, needing to carry out grabbing fishing to the junk in shaft bottom, using backwash
Well-flushing mode will lead to flushing fluid before reaching shaft bottom, the case where largely loss from stratum or casing, and then cause to reach well
The pressure reduction of the flushing fluid at bottom cannot achieve the effect that rinse object to be removed.For this purpose, the utility model embodiment provides one
Kind well washing equipment, can solve the poor problem of well washing effect in the related technology.
Fig. 1 is a kind of structural schematic diagram of well washing equipment provided by the embodiment of the utility model.As shown in Figure 1, the well-flushing
Equipment 0 may include: flushing pump 01 and Flush coupling 02.Wherein, as shown in Fig. 2, the Flush coupling 02 may include: tubulose sheet
Body 021.
Incorporated by reference to Fig. 1 and Fig. 2, flushing pump 01 is connected to one end of inner tube A, and one end of tubular body 021 can be with inner tube A
Other end connection, be provided with the baffle 0211 for being divided into two parts in the axial direction in tubular body 021.Two parts
Side wall on be provided with through-hole 0212, and in each through-hole 0212 close to 021 lateral surface of tubular body one end to baffle
0211 inclination, and any two through-hole 0212 is non-intersecting.
It should be noted that high pressure flushing liquid can be inputted to inner tube by cleaning pump, is entered in Flush coupling with flushing fluid and kept off
The side of plate, and under the inhibition of baffle, it is expelled to the annular space between inner tube and casing from the through-hole of baffle side, with right
Object to be removed in annular space is cleaned.Later, Flush coupling can be entered in the other side of baffle from Flush coupling, and
Under the inhibition of baffle, object to be removed is carried from the through-hole of the baffle other side and is back to annular space, and then with returning out from annular space
Face.
In conclusion including Flush coupling in well washing equipment provided by the embodiment of the utility model, and the Flush coupling
It is provided with the baffle for being divided into two parts in the axial direction in tubular body, and is separately positioned in two partial sidewalls
Through-hole.During well-flushing, flushing fluid can inject annular space by the through-hole in two partial sidewalls by inner tube, due to logical
The equivalent orifice area in hole is less than the circulation area of inner tube, therefore flushing fluid can regard well-flushing as from the process that inner tube injects annular space
Flushing fluid can be improved to the carrying capacity of the object to be removed in annular space in the process of liquid pressurization, the process.Again due to well washing equipment
In well-flushing, flushing fluid can enter in well from inner tube, without entering in well from annular space, therefore, avoid flushing fluid on ground
There are occurring the case where a large amount of leakages when crack, ensure that can have enough pressures when flushing fluid enters annular space for layer or casing
Power, and then ensure that flushing fluid has stronger impact force, to be cleaned to the object to be removed in well.
Refer to the flushing fluid projected from any two through-hole mutually not it should be noted that any two through-hole is non-intersecting
It influences, i.e., the flushing fluid that any two through-hole projects does not collide.
In addition, two parts that tubular body 021 is separated by baffle 0211 may include: first part and second part,
Wherein, one end of tubular body 021 can be the one end of first part far from second part, and in first part through-hole it is equivalent
Orifice area is less than the equivalent orifice area of through-hole on second part.Illustratively, in first part through-hole equivalent orifice area
It can be 10 millimeters, the equivalent orifice area of through-hole can be 15 millimeters on second part, so, from first part
The well-flushing flow velocity that through-hole projects is larger, also larger to the impact force of the object to be removed on annular space；And from logical on second part
The well-flushing flow quantity that hole is projected is larger, stronger to the carrying capacity of the object to be removed on annular space.I.e. when through-hole in first part
When equivalent orifice area is less than the equivalent orifice area of through-hole on second part, the well-flushing of well washing equipment can be further improved
Effect.Optionally, the equivalent area of through-hole can also be other numerical value in first part, such as 12 millimeters, 15 millimeters；First
The equivalent area of point upper through-hole can also be other numerical value, such as 18 millimeters, 20 millimeters, the utility model embodiment to this not
It limits.
Optionally, the material of tubular body, inner tube and baffle all can be metal material, such as stainless steel material.Baffle with
The connection of tubular body can be to be fixedly connected, and such as be welded to connect.The thickness of baffle can be 10 millimeters, optionally, baffle
Thickness can also be other values, such as 15 millimeters, and the utility model embodiment does not limit this.
In the utility model embodiment, one end in each through-hole 0212 close to 021 lateral surface of tubular body is to baffle
0211 inclination.Optionally, the axis (such as axis X 2 or axis X 3) of each through-hole 0212 in two parts and tubular body 021
The angle of axis X 1 be respectively less than 60 degree.Illustratively, when the axis X 2 of through-hole 0212 each in first part and tubular body 021
Axis X 2 angle less than 60 degree when, can reduce flushing fluid by first part to the annular space process casing B and inner tube A
In the pressure loss, and then the object to be removed that can make flushing fluid that there is enough pressure to go impact ring aerial can also make to wash
Well liquid pressure still with higher before the second part for entering tubular body.Similar, when through-hole each in second part
When the angle of 0212 axis X 3 and the axis X 2 of tubular body 021 is less than 60 degree, flushing fluid also can reduce by second part
The pressure loss during to annular space, at this point, flushing fluid can have enough pressure to carry outside the object to well to be removed in annular space,
And then improve the well washing effect of well washing equipment.
The axis of any two through-hole 0212 in two parts can be different from the angle of the axis of tubular body 021,
Optionally, the axis of any two through-hole 0212 can also be identical with the angle of the axis of tubular body 021, and the utility model is real
Example is applied not limit this.When the axis of any two through-hole 0212 is identical as the angle of the axis of tubular body 021, each
It is identical that through-hole projects pressure drop of flushing fluid during entering annular space by two parts, and then it is clear to annular space to improve well washing equipment
The uniformity coefficient washed.
Optionally, the number of through-hole can be identical on each part in two parts of tubular body 021, be such as 2,
3 or 4, the utility model embodiment to the number of through-hole on each part in two parts without limitation.Optionally, two portions
The number of the through-hole on each part in point can also be different, and if the number of through-hole in first part is 2, lead on second part
The number in hole is 3, the utility model embodiment to this also without limitation.When the number of through-hole in first part is equal to second part
When the number of upper through-hole, through-hole 0212 on two parts can orthographic projection on the reference plane can be intervally arranged one by one,
So, the well-flushing that the through-hole 0212 on the flushing fluid and second part that through-hole 0212 projects in first part projects is avoided
Influencing each other between liquid.Wherein, axis X 1 of the reference planes perpendicular to tubular body 021.
Further, the orthographic projection of the through-hole on two parts on the reference plane can uniformly arrange.Optionally, two
The orthographic projection of through-hole on the reference plane on part can also unevenly arrange, and the utility model embodiment does not limit this
It is fixed.When the orthographic projection of the through-hole on two parts on the reference plane is uniformly arranged, flushing fluid can carry out annular space uniform
Ground cleaning, further increases the uniformity coefficient that well washing equipment cleans annular space.
Still further, the through-hole in two parts on each part can be respectively positioned on the same axial position of tubular body
It sets.The structural schematic diagram that Fig. 3 is section CC ' where through-hole in first part provided by the embodiment of the utility model, with the in Fig. 3
For the number of through-hole is 3 in a part, and the orthographic projection on three through-holes section shown in Fig. 3 is uniformly arranged.Fig. 4 is
The structural schematic diagram of section DD ' where through-hole on second part provided by the embodiment of the utility model, in Fig. 4 on second part
The number of through-hole is also for 3, and the orthographic projection on three through-hole sections shown in Fig. 4 is also uniformly arranged, and Fig. 4 and
Any two through-hole is non-intersecting in 6 through-holes shown in Fig. 3.
Optionally, with continued reference to FIG. 1, well washing equipment 0 can also include: grappling tool 03.Wherein, grappling tool 03 wraps
It includes: circulation duct 031, and the fishing pawl 032 of circulation duct one end is set.Circulation duct 031 can be cylindrical, Er Qieliu
Thread a pipe 031 and fishing pawl 032 all can be metal material, and fish out pawl 032 be the metal material that can produce plastic deformation.Separately
Outside, the other end of circulation duct 031 can be connected to the other end of tubular body.
It should be noted that the inner wall of one end of tubular body is provided with taper thread, the outer wall of the inner tube other end is also provided with
There is taper thread, one end of tubular body and the other end of inner tube are connected through a screw thread.Similar, tubular body is another
The outer wall at end is provided with taper thread, and the inner wall of the other end of circulation duct is also equipped with taper thread in grappling tool, so that tubulose
The other end of ontology and the other end of circulation duct can also be connected through a screw thread.Wherein, it on tubular body, in inner tube and flows
Taper thread on threading a pipe all can be left-handed taper thread, optionally, the cone on tubular body, in inner tube and on circulation duct
Screw thread can also each be dextrorotation taper thread, and the utility model embodiment does not limit this.
The specific workflow of well washing equipment will be described briefly below.
Incorporated by reference to Fig. 1 and Fig. 2, when well washing equipment needs to clean well, first flushing pump 01 is opened, makes its well-flushing
Liquid pressurization.Flushing fluid is after the pressurization of flushing pump 01, into inner tube A, and then enters tubular body 021 in Flush coupling 02
First part.Positioned at first part high pressure flushing liquid due to baffle 0211 obstruction, by the through-hole on first part's side wall
0212 injects in the annular space between casing B and inner tube A, at this point, flushing fluid can shoot down the object to be removed in annular space.Next,
The flushing fluid injected in annular space will hit casing B and shaft bottom, and then enter pipe by the circulation duct 031 in grappling tool 03
The second part of shape ontology 021.In this process, flushing fluid can carry quality in fallen object to be removed it is lesser to
Remover enters second part, and the biggish object to be removed of quality then stays in shaft bottom in fallen object to be removed.Due to being located at
The flushing fluid of second part pressure still with higher, and under the obstruction of baffle 0211, flushing fluid is by second part side wall
Through-hole 0212 inject in annular space again.Simultaneously as the equivalent orifice area of through-hole 0212 is larger on second part, so that again
The flow of flushing fluid in secondary injection annular space is also larger, therefore, the object to be removed in annular space can directly be carried to outside well.
Next, needing first to close flushing pump 01, then clearing up after determination clears up the object to be removed in annular space
The biggish object to be removed of quality positioned at shaft bottom.The biggish object to be removed of quality that cleaning is located at shaft bottom can pass through grappling tool
03 realizes.Specifically, the fishing pawl 032 in grappling tool 03 is constantly in the state of opening before the closing of flushing pump 01, when washing
After well pump 01 is closed, the inner tube A that staff can control well washing equipment 0 and connect with well washing equipment 0 is integrally moved down,
Under the squeezing action of shaft bottom and well washing equipment 0, fishing pawl 032 first catches the biggish object to be removed of quality, is then slowly closed.Work as fishing
After pawl 032 is closed completely, staff can propose well washing equipment 0 and inner tube A out of well, complete the cleaning to well.Due to
Fishing out pawl 032 is the metal material that can produce plastic deformation, and has baffle 0211 in Flush coupling 021, therefore, by fishing pawl 032
The object to be removed picked up, which is difficult to be rushed again by flushing fluid remaining in inner tube, to be fallen, and the well washing effect of well washing equipment is improved.
In conclusion including Flush coupling in well washing equipment provided by the embodiment of the utility model, and the Flush coupling
It is provided with the baffle for being divided into two parts in the axial direction in tubular body, and is separately positioned in two partial sidewalls
Through-hole.During well-flushing, flushing fluid can inject annular space by the through-hole in two partial sidewalls by inner tube, due to logical
The equivalent orifice area in hole is less than the circulation area of inner tube, therefore flushing fluid can regard well-flushing as from the process that inner tube injects annular space
Flushing fluid can be improved to the carrying capacity of the object to be removed in annular space in the process of liquid pressurization, the process.Again due to well washing equipment
In well-flushing, flushing fluid can enter in well from inner tube, without entering in well from annular space, therefore, avoid flushing fluid on ground
There are occurring the case where a large amount of leakages when crack, ensure that can have enough pressures when flushing fluid enters annular space for layer or casing
Power, and then ensure that flushing fluid has stronger impact force, to be cleaned to the object to be removed in well.
The foregoing is merely the alternative embodiments of the application, not to limit the application, it is all in spirit herein and
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this application.
Claims (10)
1. a kind of well washing equipment, which is characterized in that the well washing equipment includes: flushing pump and Flush coupling, the Flush coupling
It include: tubular body,
The flushing pump is connected to one end of inner tube, and one end of the tubular body can be connected to the other end of inner tube, described
The baffle for being divided into two parts in the axial direction is provided in tubular body；
Through-hole is provided on the side wall of described two parts, and close to the tubular body lateral surface in each through-hole
One end is tilted to the baffle, and through-hole described in any two is non-intersecting.
2. well washing equipment according to claim 1, which is characterized in that the axis and the tubular body of each through-hole
The angle of axis be respectively less than 60 degree.
3. well washing equipment according to claim 1 or 2, which is characterized in that the axis of through-hole described in any two with it is described
The angle of the axis of tubular body is identical.
4. well washing equipment according to claim 1, which is characterized in that the through-hole on described two parts is on the reference plane
Orthographic projection be intervally arranged one by one, axis of the reference planes perpendicular to the tubular body.
5. well washing equipment according to claim 4, which is characterized in that the through-hole on described two parts is described with reference to flat
Orthographic projection on face is uniformly arranged.
6. well washing equipment according to claim 1, which is characterized in that described two parts include: first part and second
Part,
One end of the tubular body is the one end of the first part far from the second part, described in the first part
The equivalent orifice area of through-hole is less than the equivalent orifice area of the through-hole on the second part.
7. well washing equipment according to claim 1, which is characterized in that the through-hole in described two parts on each part is equal
Positioned at the same axial position of the tubular body.
8. well washing equipment according to claim 1, which is characterized in that be respectively provided on each part in described two parts
There are three the through-holes.
9. well washing equipment according to claim 1, which is characterized in that the well washing equipment further include: grappling tool, it is described
Grappling tool includes: circulation duct, and the fishing pawl of described circulation duct one end is arranged in, the other end energy of the tubular body
It is enough to be connected to the other end of the circulation duct.
10. well washing equipment according to claim 9, which is characterized in that the inner wall of one end of the tubular body is provided with
The outer wall of taper thread, the other end is provided with taper thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346618.3U CN209354080U (en) | 2018-08-20 | 2018-08-20 | Well flushing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346618.3U CN209354080U (en) | 2018-08-20 | 2018-08-20 | Well flushing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209354080U true CN209354080U (en) | 2019-09-06 |
Family
ID=67777971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821346618.3U Active CN209354080U (en) | 2018-08-20 | 2018-08-20 | Well flushing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209354080U (en) |
-
2018
- 2018-08-20 CN CN201821346618.3U patent/CN209354080U/en active Active
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