CN206860159U - A kind of device for being used to adjust horizontal well production profile - Google Patents
A kind of device for being used to adjust horizontal well production profile Download PDFInfo
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- CN206860159U CN206860159U CN201720787972.9U CN201720787972U CN206860159U CN 206860159 U CN206860159 U CN 206860159U CN 201720787972 U CN201720787972 U CN 201720787972U CN 206860159 U CN206860159 U CN 206860159U
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- base tube
- outer barrel
- horizontal well
- annulus access
- capillary
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Abstract
The utility model proposes a kind of device for being used to adjust horizontal well production profile, it includes base tube, and flowing hole is provided with the wall of base tube；Screen assembly, it is set in the outside of base tube and forms annulus access with base tube, and filter bores are provided with screen assembly；Wherein, annulus access, which is configured to connect with flowing hole and filter bores, enables fluid to enter after annulus access the inner chamber for entering base tube by flowing hole by filter bores.The flow resistance of the fluid of reservoir can be increased using the device, so as to the speed of response of fluid in the corresponding reservoir of different segmentations of controlled level well, and then horizontal well production profile is adjusted, thus suppress edge and basal water, delay the horizontal well water breakthrough time, reach the purpose for improving well yield and recovery ratio.
Description
Technical field
It the utility model is related to oil gas well completion technical field, and in particular to a kind of to be used to adjust horizontal well production profile
Device.
Background technology
Horizontal well increases the contact area of pit shaft and oil reservoir compared with conventional straight well, and well yield is high.With horizontal well
The continuous progress of technology, the well number of horizontal well increase considerably.Horizontal well is horizontal with the progress of production in recovery process
The fluid of pit shaft surrounding formation production flows to toe-end in horizontal wellbore from heel end, due to the frictional resistance of horizontal wellbore, and
Pressure drop funnel existing for horizontal well toe-end to heel end, nearby reservoir fluid speed of production is very fast for nearly heel end in theory；Simultaneously as
The anisotropy of horizontal wellbore surrounding formation permeability, corresponding hypertonic band reservoir and hypotonic band on whole horizontal wellbore be present
Reservoir, in high permeability zone, reservoir permeability is high, and fluid inflow speed is fast, and in hyposmosis band, reservoir permeability is low, fluid inflow
Speed is relatively slow, inevitable due to the difference of permeability and the influence of pressure drop funnel when having edge-bottom water around horizontal well
Edge and basal water phenomenon be present.
The uneven propulsion of flow profile can be caused using the existing mode of production, once certain net horizontal section is because of side bottom
Water cone and then cause horizontal wellbore water breakthrough, will cause whole horizontal well moisture percentage rapid increase, the drastically decline of oil production, finally
Cause to close a well in.
In order to tackle horizontal well because the quick coning of edge-bottom water that the factor such as permeability anisotropy and pressure drop funnel is brought
Deng potential problems, it is necessary to invent a kind of downhole device for being used to adjust horizontal well production profile, by the device, with reference to certain
Lower completion tubing string, the fluid inflow speed of controlled level well difference well section, the production profile for the horizontal well that increases overally, so as to reach
To edge and basal water is suppressed, delay the horizontal well water breakthrough time, improve the purpose of individual well recovery ratio.
Utility model content
For some or all of of the above-mentioned technical problem in the presence of prior art, the utility model proposes one kind
For adjusting the device of horizontal well production profile.The device is used in horizontal well to increase the production that fluid in pit shaft enters pit shaft
Flow resistance in tubing string, so as to the speed of response of fluid in the corresponding reservoir of different segmentations of controlled level well, and then adjust water
Horizontal well production profile, thus suppresses edge and basal water, delays the horizontal well water breakthrough time, reaches and improves well yield and recovery ratio
Purpose.
It is used to adjust the device of horizontal well production profile according to the utility model proposes a kind of, including：
Base tube, flowing hole is provided with the wall of base tube,
Screen assembly, it is set in the outside of base tube and forms annulus access with base tube, and is set on screen assembly
There are filter bores,
Wherein, annulus access is configured to connect with flowing hole and filter bores and enables fluid to enter annular space by filter bores
Enter the inner chamber of base tube after passage by flowing hole.
In one embodiment, screen assembly includes being sequentially connected and being set on base tube from first end to the second extreme direction
Box cupling, screen casing, the first outer barrel and the second outer barrel, wherein, the first end of box cupling is fixedly connected with base tube, the second of the second outer barrel
End is fixedly connected with base tube, and filter bores are arranged on the outer wall of screen casing.
In one embodiment, set on the inwall of the first outer barrel to the projecting inward interior protuberance of annulus access, interior protuberance
It is socketed on the outer wall of base tube, and the via hole that can be connected with annulus access is configured with interior protuberance.
In one embodiment, capillary is set in via hole.
In one embodiment, the effective diameter of capillary is 2 to 6 millimeters.
In one embodiment, the first end face of capillary is located at the second end of the first end face of via hole.
In one embodiment, capillary is made up of hydrophilic and oleophobic formula graphene.
In one embodiment, the first outer barrel and the second outer barrel overlap and set seal therebetween.
In one embodiment, screen casing is configured to star-gapping sieve tube.
In one embodiment, joint is set in the first end of base tube.
Compared with prior art, the utility model has the advantage of in the dress for being used to adjust horizontal well production profile by this
Put after being lowered into horizontal well, the fluid of reservoir can enter annulus access by filter bores, then be entered by flowing hole
The inner chamber of base tube, then ground is transported to, the flow resistance of the fluid of reservoir is added, so as to the different segmentations of controlled level well
The speed of response of fluid in corresponding reservoir, and then horizontal well production profile is adjusted, thus suppress edge and basal water, delay horizontal well
Water breakthrough time, reach the purpose for improving well yield and recovery ratio.
Brief description of the drawings
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, in figure：
Fig. 1 shows the device for being used to adjust horizontal well production profile according to one embodiment of the present utility model；
Fig. 2 shows the front view of the first outer barrel according to one embodiment of the present utility model；
Fig. 3 shows the left view of the first outer barrel according to one embodiment of the present utility model；
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to the ratio of reality.
Embodiment
The utility model is described further below in conjunction with accompanying drawing.
Fig. 1 is shown according to the device 100 of the present utility model for being used to adjust horizontal well production profile.As shown in figure 1, with
Include base tube 1 and screen assembly 2 in the device 100 of adjustment horizontal well production profile.Wherein, it was provided with the wall of base tube 1
Discharge orifice 11, inside and outside connection base tube 1.Screen assembly 2 is set in the outside of base tube 1, and forms annulus access with base tube 1
3.Filter bores 21 are provided with the wall of screen assembly 2.Also, in the axial direction, filter bores 21 are located at the first end of flowing hole 11.
Wherein, annulus access 3 connects with flowing hole 11 and filter bores 21.
During horizontal well oil and gas development, the device 100 is arranged on flow string, can be caused in horizontal wellbore
Fluid first passes through filter bores 21 and entered in annulus access 3, then is entered by flowing hole 11 in the inner chamber of base tube 1.Thus, lead to
Cross and set device 100 to add the flow resistance that fluid enters in flow string in horizontal wellbore, so as to controlled level well not
With the speed of response of fluid in the corresponding reservoir of segmentation, and then horizontal well production profile is adjusted, suppress edge and basal water, delay level
The well water breakthrough time, reach the purpose for improving well yield and recovery ratio.
In one embodiment, screen assembly 2 includes box cupling 22, screen casing 23, the first outer barrel 24 and the second outer barrel 25.From
To on the second extreme direction, box cupling 22, screen casing 23, the first outer barrel 24 and the second outer barrel 25 are sequentially connected, and are set in base for one end
The outside of pipe 1.Wherein, the first end of box cupling 22 is fixedly connected with base tube 1, and the second end of the second outer barrel 25 is fixed with base tube 1 to be connected
Connect.So as to form the annulus access 3 that both ends block between the first end of box cupling 22 and the second end of the second outer barrel 25.Cross
Filter opening 21 is arranged on the outer wall of screen casing 22, for the connection external world and annulus access 3.It is this simple in construction, it is easy to accomplish.
As shown in Fig. 2 set on the inwall of the first outer barrel 24 to the projecting inward interior protuberance 26 of annulus access 3.Interior protuberance
26 inwall is socketed on the outer wall of base tube 1.It is configured with via hole 27 in interior protuberance 26, the both ends of via hole 27 are and annular space
Passage 3 connects.So as to which fluid flows to the annular space in downstream from the annulus access 3 of upstream in flow process by via hole 3
Passage 3.The circulation area of annulus access 3 reduces at via hole 3, adds the local resistance of fluid, further increases control
The ability of edge and basal water speed processed.Preferably, as shown in figure 3, in the circumferential, setting multiple via holes 27, and via hole
27 are configured to the through hole that axially extends.It is this simple in construction, manufacture easy to process.
Capillary 4 is set in via hole 27.The effective diameter of capillary 4 is 2 to 6 millimeters, and the length of capillary 4 is
60-100 millimeters.For example, the effective diameter of capillary 4 is 4 millimeters, and length is 80 millimeters.Preferably, the first of capillary 4
End face is located at the second end of the first end face of via hole 27.It is, the first end face of capillary 4 is apart from the first of via hole 27
End face certain distance.Said structure causes the circulation passage of fluid to form reducing at the first end face of capillary 4, to produce section
Pressure drop is flowed, increases the flow resistance of fluid.When the timing of internal diameter size one of capillary 4, the flow of fluid is bigger, and restriction effect is got over
By force, simultaneously because there is different choke pressure drop effects for different fluid in water-oil phase fluid, to a certain degree at reducing
On serve the effect of steady oil control water.By setting capillary 4 that the friction drag of fluid is further increased, reach increase stream
The effect of dynamic resistance oil-control.
In a preferred embodiment, capillary 4 is made up of hydrophilic and oleophobic formula graphene.Pass through this set hair
Tubule 4 has different resistances to the different fluid in water-oil phase fluid, and bigger for the resistance of water, so as to further carry
The high ability of the steady oil control water of device 100.
As shown in figure 1, the first outer barrel 24 and the second outer barrel 25 are connected through a screw thread.It is this simple in construction, convenient disassembly.And
And seal 5 is set between the first outer barrel 24 and the second outer barrel 25.Preferably, seal 5 is O-ring seal.By setting
The sealing of annulus access 3 can be ensured by putting seal 5, prevent fluid leakage.
In one embodiment, screen casing 23 is configured to cost than relatively low star-gapping sieve tube.Certainly, screen casing 23 can also construct
For other types of screen casing, as long as it can meet that the screen casing of sand controlling result may apply in the utility model.
When use device 100, first end can be identical with the upper end holding of the real work position of flow string.
Now joint 6 can be set in the first end of base tube 1, for being attached with other downhole tools.By setting joint 6 can
So that device 100 is conveniently and efficiently set on flow string.Certainly, the first end of device 100 can also be with flow string
The lower end of real work position keeps identical.It is to be appreciated that now, joint 6 can be arranged on the second end of base tube 1.
In the application, using the left end in Fig. 1 as first end, and right-hand member is device 100 to be illustrated exemplified by the second end.
Preferred embodiment of the present utility model is these are only, but scope of protection of the utility model is not limited thereto, and is appointed
What those skilled in the art in technical scope, easily can be changed or change disclosed in the utility model, and this
Being altered or varied should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model Ying Yiquan
The protection domain of sharp claim is defined.
Claims (10)
- A kind of 1. device for being used to adjust horizontal well production profile, it is characterised in that including：Base tube, flowing hole is provided with the wall of the base tube,Screen assembly, it is set in the outside of the base tube and forms annulus access with the base tube, and in the screen casing group Filter bores are provided with part,Wherein, the annulus access is configured to connect with the flowing hole and the filter bores and enabled fluid to by the mistake Filter opening enter the annulus access after by the flowing hole enter the base tube inner chamber.
- 2. device according to claim 1, it is characterised in that the screen assembly is included from first end to the second extreme direction Box cupling, screen casing, the first outer barrel and the second outer barrel for being sequentially connected and being set on the base tube, wherein, the first of the box cupling End is fixedly connected with the base tube, and the second end of second outer barrel is fixedly connected with the base tube, and the filter bores are arranged on On the outer wall of the screen casing.
- 3. device according to claim 2, it is characterised in that set on the inwall of first outer barrel to the annular space The projecting inward interior protuberance of passage, the interior protuberance are socketed on the outer wall of the base tube, and are configured with the interior protuberance The via hole that can be connected with the annulus access.
- 4. device according to claim 3, it is characterised in that capillary is set in the via hole.
- 5. device according to claim 4, it is characterised in that the effective diameter of the capillary is 2 to 6 millimeters.
- 6. the device according to claim 4 or 5, it is characterised in that the first end face of the capillary is located at the conducting Second end of the first end face in hole.
- 7. the device according to claim 4 or 5, it is characterised in that the capillary is made up of hydrophilic and oleophobic formula graphene.
- 8. device according to claim 2, it is characterised in that first outer barrel and second outer barrel overlap and two Seal is set between person.
- 9. device according to claim 2, it is characterised in that the screen casing is configured to star-gapping sieve tube.
- 10. device according to claim 1, it is characterised in that joint is set in the first end of the base tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787972.9U CN206860159U (en) | 2017-06-28 | 2017-06-28 | A kind of device for being used to adjust horizontal well production profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720787972.9U CN206860159U (en) | 2017-06-28 | 2017-06-28 | A kind of device for being used to adjust horizontal well production profile |
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| Publication Number | Publication Date |
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| CN206860159U true CN206860159U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720787972.9U Active CN206860159U (en) | 2017-06-28 | 2017-06-28 | A kind of device for being used to adjust horizontal well production profile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162706A (en) * | 2018-11-06 | 2019-01-08 | 西安石油大学 | A kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method |
-
2017
- 2017-06-28 CN CN201720787972.9U patent/CN206860159U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162706A (en) * | 2018-11-06 | 2019-01-08 | 西安石油大学 | A kind of well-case perforating horizontal well liquid production section test device, production test integral tubular column and test method |
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