CN202250003U - High-pressure flow-dividing water distributor - Google Patents
High-pressure flow-dividing water distributor Download PDFInfo
- Publication number
- CN202250003U CN202250003U CN2011204130631U CN201120413063U CN202250003U CN 202250003 U CN202250003 U CN 202250003U CN 2011204130631 U CN2011204130631 U CN 2011204130631U CN 201120413063 U CN201120413063 U CN 201120413063U CN 202250003 U CN202250003 U CN 202250003U
- Authority
- CN
- China
- Prior art keywords
- central tube
- high pressure
- injection well
- flow regulator
- support set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 238000002347 injection Methods 0.000 claims abstract description 104
- 239000007924 injection Substances 0.000 claims abstract description 104
- 238000003780 insertion Methods 0.000 claims abstract description 22
- 230000037431 insertion Effects 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000011010 flushing procedure Methods 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 3
- 238000011001 backwashing Methods 0.000 abstract 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 44
- 238000005406 washing Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000001077 hypotensive effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Images
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a high pressure reposition of redundant personnel injection mandrel, it includes: the upper end of the central tube is externally connected with an upper joint, the lower end of the central tube is externally connected with a support sleeve, a water injection channel is formed between the upper end of the support sleeve and the central tube, and the central tube is provided with a water distribution hole communicated with the water injection channel; the sliding sleeve is arranged in the central pipe in a penetrating way and is connected to the inner pipe wall of the central pipe with water distribution holes in a sealing way through shear pins, and the upper end seat of the sliding sleeve is provided with an insertion pipe; the outer sleeve is sleeved outside the central pipe, two ends of the outer sleeve are respectively connected with the support sleeve and the upper joint, an annular channel is formed between the outer sleeve and the central pipe, a water injection hole is formed at the position, close to the support sleeve, of the outer sleeve, and the water injection hole is communicated with the water injection channel through the annular channel; the backwashing valve is arranged in the annular channel, an elastic element is clamped between the backwashing valve and the upper connector, and the backwashing valve is sealed and clamped in the water injection channel through the elastic element. The utility model discloses a high pressure reposition of redundant personnel injection mandrel can carry out the stratified injection to the water injection well, can carry out the well-flushing operation again.
Description
Technical field
The utility model is relevant for a kind of injection well downhole flow regulator, especially relevant for a kind of high pressure shunting injection well downhole flow regulator that is applied in the water injection well in oil fields.
Background technology
At present, one of important measures that water filling is increased production as oilfield stable production, the status in oil field development is more and more important.Early stage at water flooding, generally be generally to be regardless of the water filling of level ground, owing to the reason of geology; The layer good penetrability that has, notes just many, the layer poor permeability that has; That annotates is just few, between relief layer, in the layer and horizontal contradiction, improves water-injection efficiency and swept volume; Improve oil recovery factor and recovery percent of reserves, the development scheme of seperated layer water injection is adopted in existing oil field mostly.Seperated layer water injection is meant and in water injection well, is lowered to packer, separates the oil reservoir that differs greatly, and carries out the layering water distribution with injection well downhole flow regulator again, makes the high permeability formation water injection rate controlled, and middle low-permeability oil-bearing stratum flooding amount is strengthened, and all kinds of oil reservoirs can both be played one's part to the full.Therefore, injection well downhole flow regulator is widely used as tool equipment important in the water injection well in oil fields, and the injection well downhole flow regulator that uses in the existing water injection well in oil fields can be divided into two kinds of hollow distributor and eccentric injection mandrels substantially.
The main effect of hollow distributor is to produce throttling, makes the certain pressure differential of the inside and outside generation of water injection string, lets differential packer under this differential pressure action, set, and realizes seperated layer water injection.For example No. the 03211650.0th, Chinese patent " plug-in type sealing injection well downhole flow regulator " through its outer distributing hole that puts, makes the middle oil reservoir that injects the current direction water injection well exactly; Through being located in the oil-bearing stratum flooding of the insertion tube oil reservoir below in the middle of being positioned in the injection well downhole flow regulator; The oil-bearing stratum flooding of oil reservoir top injects through the oil jacket annular space in the middle of being positioned at, and then can realize the operation of three layers of oil reservoir seperated layer water injection under water injection well through a hollow distributor.Owing to after the water injection well long-term injecting water, can contain pollutants such as a considerable amount of sump oils, suspended impurity and dissolved ions in it,, influence injection test and flood effectiveness if untimely cleaning can cause oil reservoir to be stopped up by booty.Existing hollow distributor can not form pressure reduction in it and between the oil jacket annular space, and then cause the backwash valve of differential packer to close behind anti-flushing well, makes can't carry out the seperated layer water injection operation once more behind the well-flushing.
Eccentric injection mandrel is distributed in each the oil reservoir position under the water injection well; It mainly regulates the water injection rate of every layer of eccentric injection mandrel through pulling and running tool and blanking plug, realize the purpose of seperated layer water injection, but eccentric injection mandrel must be tested before use to the pressure and the injection well downhole flow regulator of shaft bottom oil reservoir; Its complex procedures, operational difficulty; Particularly in water injection well below four layers basically need not, its narrow in application range, and existing most eccentric injection mandrel does not possess the well-flushing function yet.
Therefore, be necessary to provide a kind of novel injection well downhole flow regulator that can seperated layer water injection possesses the well-flushing function again, overcome above-mentioned defective.
The utility model content
The purpose of the utility model provides a kind of high pressure shunting injection well downhole flow regulator; This high pressure shunting injection well downhole flow regulator not only can be realized the seperated layer water injection under the water injection well; And can carry out clean-out service to water injection well, and reached prolongation water injection string application life, reduce the purpose of water injection pressure; This high pressure shunting injection well downhole flow regulator is simple in structure, and easy to operate.
The above-mentioned purpose of the utility model can adopt following technical proposal to realize:
The utility model provides a kind of high pressure shunting injection well downhole flow regulator, and said high pressure shunting injection well downhole flow regulator comprises:
Central tube, its upper end is circumscribed with top connection, and its lower end is circumscribed with support set, is formed with the waterflood path of annular between the upper end of said support set and the said central tube, offers distributing hole on the said central tube, and said distributing hole is connected with said waterflood path;
Sliding sleeve, it is located in the inside of said central tube, and is sealedly connected on said central tube through shear pin and is provided with on the inner tubal wall of said distributing hole, and the upper end base of said sliding sleeve is provided with insertion tube;
Overcoat; It is set in the outside of said central tube; The two ends of said overcoat link to each other with said support set, said top connection respectively; Be formed with the circular passage between said overcoat and the said central tube, offer water injection hole at said overcoat near the position of said support set, said water injection hole is connected with said waterflood path through said circular passage;
Backwash valve, it is arranged in the said circular passage, between said backwash valve and said top connection, is folded with flexible member, and said backwash valve is located in the said waterflood path through said flexible member sealed clamping cleat.
In preferred embodiment; Said support set comprise support set with in be connected on said following support set that go up to support the cover lower end; Said waterflood path is formed on said going up and supports between cover and the said central tube, connects said central tube in the upper end of said support set down, is connected to down connector in its lower end.
In preferred embodiment, be equipped with snap on the inwall of said support set down, said snap is folded between said connector down and the said central tube, and the axially downward kayser of said sliding sleeve is in said snap.
In preferred embodiment, said snap has the lock tooth, the radially inside downward-sloping setting of said lock tooth, and said sliding sleeve has latch, the setting that radially outward is inclined upwardly of said latch, said latch is fastened in the locked groove that forms between the said in twos lock tooth.
In preferred embodiment, the outer cover of said top connection is connected to regulating sleeve, and the upper end of said overcoat links to each other with said regulating sleeve, and the upper end of said flexible member is against on the said regulating sleeve through the pad top.
In preferred embodiment, between said overcoat and the said regulating sleeve, be respectively equipped with a plurality of O-ring seals between said regulating sleeve and the said top connection.
In preferred embodiment, be respectively equipped with a plurality of O-ring seals between support set and the said down support set between said central tube and the said sliding sleeve, on said.
In preferred embodiment, said shear pin is positioned at the below of said distributing hole.
In preferred embodiment, said backwash valve comprises pressure section and the insertion section that is connected said pressure section below, and said pressure section is supported on said flexible member top, and insert in the said waterflood path said insertion section.
In preferred embodiment, the both sides of said pressure section are provided with a plurality of O-ring seals respectively and between the inwall of the outer tube wall of said central tube, said overcoat.
The characteristics and the advantage of the high pressure shunting injection well downhole flow regulator of the utility model are: utilize insertion tube to push against sliding sleeve downwards; Distributing hole is communicated with water filling runner between insertion tube, the central tube; Through water filling in this water filling runner, realize the purpose of the middle oil-bearing stratum flooding under water injection well; Water filling in insertion tube, the purpose of the oil-bearing stratum flooding of oil reservoir below in the middle of can realizing under water injection well, being positioned at; The oil-bearing stratum flooding of oil reservoir top mainly is through realizing to the oil jacket annulus water injection in the middle of being positioned at.The high pressure shunting injection well downhole flow regulator of the utility model can be realized the purpose of three layers of oil reservoir seperated layer water injection under water injection well; In addition; Be arranged on the backwash valve in the circular passage between overcoat and the central tube, under the throttling hypotensive effect of flexible member, make between the water filling runner that forms between insertion tube and the central tube and the oil jacket annular space and produce pressure reduction; Thereby the backwash passage of shut off differential pressure formula packer smoothly behind well-flushing provides prerequisite for realizing seperated layer water injection once more.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the half sectional view of the high pressure shunting injection well downhole flow regulator of the utility model.
Fig. 2 shunts the water injection string sketch map of injection well downhole flow regulator for the high pressure that adopts the utility model.
Fig. 3 is the partial enlarged drawing of Fig. 1.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model provides a kind of high pressure shunting injection well downhole flow regulator 10, and it comprises central tube 1, sliding sleeve 2, overcoat 3 and backwash valve 4.Wherein: the upper end of central tube 1 is circumscribed with top connection 11; Its lower end is circumscribed with support set 12; Be formed with the waterflood path 13 of annular between the upper end of said support set 12 and the said central tube 1, offer distributing hole 14 on the said central tube 1, said distributing hole 14 is connected with said waterflood path 13; Sliding sleeve 2 is located in the inside of said central tube 1, and is sealedly connected on said central tube 1 through shear pin 21 and is provided with on the inner tubal wall of said distributing hole 14, and the upper end base of said sliding sleeve 2 is provided with insertion tube 5; Overcoat 3 is set in the outside of said central tube 1; The two ends of said overcoat 3 link to each other with said support set 12, said top connection 11 respectively; Be formed with circular passage 31 between said overcoat 3 and the said central tube 1; Offer water injection hole 32 at said overcoat 3 near the position of said support set 12, said water injection hole 32 is connected with said waterflood path 13 through said circular passage 31; Backwash valve 4 is arranged in the said circular passage 31, between said backwash valve 4 and said top connection 11, is folded with flexible member 41, and said backwash valve 4 is located in the said waterflood path 13 through said flexible member 41 sealed clamping cleats.
Specifically be; Central tube 1 is cylinder barrel shaped substantially, and it has the through hole 15 of axial perforation, and the lower end diameter of through hole 15 is a bit larger tham the diameter of its upper end; Top connection 11 is threaded in the outside, upper end of central tube 1; Support set 12 is threaded in that the lower end of central tube 1 is outside, and distributing hole 14 is opened on the lower end tube wall of central tube 1, and with the lower end of the upper end of support set 12 and central tube 1 between the waterflood path 13 that forms be connected.In the utility model, on the tube wall of central tube 1, along the circumferential direction evenly offer four distributing holes 14.
Sliding sleeve 2 is cylinder barrel shaped substantially, and it has the through hole 22 of axial perforation, and the outer wall of sliding sleeve 2 is connected the big position of internal diameter of central tube 1 lower end through shear pin 21, and shelters from the distributing hole 14 on the central tube 1, and wherein shear pin 21 is positioned at the below of distributing hole 14; The internal diameter of sliding sleeve 2 is slightly smaller than the diameter of central tube 1 through hole 15 upper ends, so that insertion tube 5 can be located at the top of sliding sleeve 2 and can push against sliding sleeve 2 downwards by seat.
Overcoat 3 is cylinder barrel shaped substantially; It is located in the outside of central tube 1; The upper end of overcoat 3 is threaded in the outside of top connection 11; Its lower end is threaded in the outside of support set 12, thereby forms a circular passage 31 naturally between the outer tube wall of overcoat 3 and central tube 1, and this circular passage 31 is connected with waterflood path 13; On the overcoat 3 near support set 12 places, offer the water injection hole 32 that is used for the oil-bearing stratum flooding under water injection well, water injection hole 32 is connected with circular passage 31, in the utility model, evenly offers four water injection holes 32 along the circumferencial direction of overcoat 3.
In the oilfield water extraction process, as shown in Figure 2, water injection string comprises oil pipe 101 successively from well head to shaft bottom, upward Y341 washing well packer 102, high pressure are shunted injection well downhole flow regulator 10, following Y341 washing well packer 103 and constant pressure switch 104.The upper end of the high pressure shunting injection well downhole flow regulator 10 of the utility model links to each other with last Y341 washing well packer 102 through top connection 11; Its lower end links to each other with following Y341 washing well packer 103 through support set 12; Last Y341 washing well packer 102 and following Y341 washing well packer 103 set respectively in the annular space 106 that between oil pipe 101 and sleeve pipe 105, forms, in order to separate each oil reservoir.
Before water filling, promote insertion tube 5 earlier downwards, sliding sleeve 2 is supported on insertion tube 5 tops moves down sliding sleeve 2; The sliding sleeve 2 descending shear pins 21 of cutting off; Distributing hole 14 is opened, and forms independently water filling runner 51 between insertion tube 5 and the oil pipe 101, injects in water Automatic water-filling runner 51, the distributing hole 14 inflow waterflood paths 13; Inject water pressure pushing the backwash valve 4 up and compression elastic elements 41 of water; Waterflood path 13 is communicated with circular passage 31, injects 32 injection stratum, water Automatic water-filling hole, thereby realizes the purpose to middle oil reservoir 107 water fillings of water injection well; Oil reservoir 108 water fillings of oil reservoir 107 tops are through realizing to 106 water fillings of oil jacket annular space in the middle of being positioned at; Oil reservoir 109 water fillings of oil reservoir 107 belows are through realizing to insertion tube 5 water fillings in the middle of being positioned at.
In washing well process; Through behind the backwash passages of last Y341 washing well packer 102, the water injection hole 32 from the overcoat 3 of the high pressure shunting injection well downhole flow regulator 10 of the utility model gets into flushing fluid from oil jacket annular space 106, and the hydraulic drive backwash valve 4 of flushing fluid moves up and compression elastic element 41; Thereby open waterflood path 13; Backwash liquor is flowed into the water filling runner 51 that insertion tubes 5 and oil pipe 101 form from distributing hole 14, and on return to well head, thereby realize well-flushing.After backwash finishes, no longer include backwash liquor in the water injection hole 32 and get into, backwash valve 4 is under the resilient force of flexible member 41; Move down and block waterflood path 13, inject water and from distributing hole 14 get into from the 51 interior water fillings of water filling runner this moment; On waterflood path 13 continued, support backwash valve 4, make on the backwash valve 4 and move, begin water filling again; In this process because the hypotensive effect of the flexible member 41 above the backwash valve 4 is arranged; Make between water filling runner 51 and the oil jacket annular space 106 and produce pressure reduction, thereby make the backwash pathway closure of Y341 washing well packer 102, thereby accomplish washing well process one time.
The high pressure shunting injection well downhole flow regulator 10 of the utility model; Three layers of oil reservoir seperated layer water injection that not only can be under water injection well, and can be behind well-flushing, through the hypotensive effect of flexible member 41; Make the backwash pathway closure of Y341 washing well packer 102, prerequisite is provided for carrying out the water filling operation once more.Adopt the high pressure shunting injection well downhole flow regulator 10 of the utility model can carry out water filling repeatedly and clean-out service repeatedly, it can prolong the application life of water injection string, reduces water injection pressure, and this high pressure to shunt injection well downhole flow regulator 10 simple in structure, easy to operate.
An embodiment according to the utility model; Said support set 12 comprise support set 121 with in be connected on the said following support set 122 of supporting cover 121 lower ends of going up; Said waterflood path 13 is formed on said going up and supports between cover 121 and the said central tube 1; Connect said central tube 1 in the upper end of said support set 122 down, be connected to down connector 6 in its lower end.Specifically be, the lower end of overcoat 3 is threaded in the outside of support set 121, and the inner tubal wall of following connector 6 is provided with stage portion 61, in order to limit the descending position of sliding sleeve 2.
According to an embodiment of the utility model, be equipped with snap 7 on the inwall of said support set 122 down, said snap 7 is folded between said connector 6 down and the said central tube 1, and said sliding sleeve 2 axially downward kaysers are in said snap 7.Specifically be that as shown in Figure 3, said snap 7 has lock tooth 71; The radially inside downward-sloping setting of said lock tooth 71; Said sliding sleeve 2 has latch 23, the setting that radially outward is inclined upwardly of said latch 23, and said latch 23 is fastened in the locked groove 72 that forms between the said in twos lock tooth 71.The lock tooth 71 of the snap 7 of the utility model and the latch of sliding sleeve 2 23 adopt the said structure design, so that sliding sleeve 2 only can be to the bottom offset kayser in snap 7, sliding sleeve 2 can not move up.
According to an embodiment of the utility model, the outer cover of said top connection 11 is connected to regulating sleeve 16, and the upper end of said overcoat 3 links to each other with said regulating sleeve 16, and the upper end of said flexible member 41 is against on the said regulating sleeve 16 through pad 42 tops.
Further, between said overcoat 3 and the said regulating sleeve 16, be respectively equipped with a plurality of O-ring seals 8 between said regulating sleeve 16 and the said top connection 11.O-ring seals 8 is in order to sealing top connection 11, regulating sleeve 16 and overcoat 3, improves the sealing that is connected between top connection 11 and regulating sleeve 16, regulating sleeve 16 and the overcoat 3.In the utility model, be respectively equipped with two O-ring seals 8 between the lower end of its external sleeve 3 and regulating sleeve 16 and between the upper end of regulating sleeve 16 and top connection 11.
In addition, be respectively equipped with a plurality of O-ring seals 8 between support set 121 and the said down support set 122 between said central tube 1 and the said sliding sleeve 2, on said.This O-ring seals 8 in order to improve between central tube 1 and the sliding sleeve 2 and on be connected sealing between support set 121 and the following support set 122.In the utility model, be provided with four O-ring seals 8 between central tube 1 and the sliding sleeve 2, they are one group of above and below that is arranged on central tube 1 distributing hole 14 respectively in twos; Be provided with two O-ring seals 8 between outside the upper end of and following support set 122 inboard in the lower end of last support set 121.
According to an embodiment of the utility model, said backwash valve 4 comprises pressure section 43 and the insertion section 44 that is connected said pressure section 43 belows, and said pressure section 43 is supported on said flexible member 41 tops, and insert in the said waterflood path 13 said insertion section 44.In the utility model, insertion section 44 is shaped in pressure section 43.
Further, the both sides of said pressure section 43 are provided with a plurality of O-ring seals 9 respectively and between the inwall of the outer tube wall of said central tube 1, said overcoat 3.In the utility model; The both sides of pressure section 43 offer two grooves respectively; In these four grooves, be placed with O-ring seals 9 respectively; This O-ring seals 9 is used to seal the inwall of backwash valve 4 and circular passage 31, prevents to inject water or flushing fluid flows into the circular passage 31 that is positioned at backwash valve 4 tops.
The above is merely several embodiment of the utility model, and those skilled in the art can carry out various changes or modification to the utility model embodiment according to the disclosed content of application documents and not break away from the spirit and the scope of the utility model.
Claims (10)
1. a high pressure shunting injection well downhole flow regulator is characterized in that, said high pressure shunting injection well downhole flow regulator comprises:
Central tube, its upper end is circumscribed with top connection, and its lower end is circumscribed with support set, is formed with the waterflood path of annular between the upper end of said support set and the said central tube, offers distributing hole on the said central tube, and said distributing hole is connected with said waterflood path;
Sliding sleeve, it is located in the inside of said central tube, and is sealedly connected on said central tube through shear pin and is provided with on the inner tubal wall of said distributing hole, and the upper end base of said sliding sleeve is provided with insertion tube;
Overcoat; It is set in the outside of said central tube; The two ends of said overcoat link to each other with said support set, said top connection respectively; Be formed with the circular passage between said overcoat and the said central tube, offer water injection hole at said overcoat near the position of said support set, said water injection hole is connected with said waterflood path through said circular passage;
Backwash valve, it is arranged in the said circular passage, between said backwash valve and said top connection, is folded with flexible member, and said backwash valve is located in the said waterflood path through said flexible member sealed clamping cleat.
2. high pressure shunting injection well downhole flow regulator as claimed in claim 1; It is characterized in that; Said support set comprise support set with in be connected on said following support set that go up to support the cover lower end; Said waterflood path is formed on said going up and supports between cover and the said central tube, connects said central tube in the upper end of said support set down, is connected to down connector in its lower end.
3. high pressure shunting injection well downhole flow regulator as claimed in claim 2 is characterized in that, is equipped with snap on the inwall of said support set down, and said snap is folded between said connector down and the said central tube, and the axially downward kayser of said sliding sleeve is in said snap.
4. high pressure shunting injection well downhole flow regulator as claimed in claim 3; It is characterized in that; Said snap has the lock tooth, the radially inside downward-sloping setting of said lock tooth, and said sliding sleeve has latch; The setting that radially outward is inclined upwardly of said latch, said latch is fastened in the locked groove that forms between the said in twos lock tooth.
5. high pressure shunting injection well downhole flow regulator as claimed in claim 1 is characterized in that the outer cover of said top connection is connected to regulating sleeve, and the upper end of said overcoat links to each other with said regulating sleeve, and the upper end of said flexible member is against on the said regulating sleeve through the pad top.
6. high pressure as claimed in claim 5 shunting injection well downhole flow regulator is characterized in that, between said overcoat and the said regulating sleeve, be respectively equipped with a plurality of O-ring seals between said regulating sleeve and the said top connection.
7. high pressure as claimed in claim 2 shunting injection well downhole flow regulator is characterized in that, is being respectively equipped with a plurality of O-ring seals between support set and said time support set between said central tube and the said sliding sleeve, on said.
8. high pressure shunting injection well downhole flow regulator as claimed in claim 1 is characterized in that said shear pin is positioned at the below of said distributing hole.
9. high pressure shunting injection well downhole flow regulator as claimed in claim 1 is characterized in that said backwash valve comprises pressure section and the insertion section that is connected said pressure section below, and said pressure section is supported on said flexible member top, and insert in the said waterflood path said insertion section.
10. high pressure as claimed in claim 9 shunting injection well downhole flow regulator is characterized in that, the both sides of said pressure section are provided with a plurality of O-ring seals respectively and between the inwall of the outer tube wall of said central tube, said overcoat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204130631U CN202250003U (en) | 2011-10-26 | 2011-10-26 | High-pressure flow-dividing water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204130631U CN202250003U (en) | 2011-10-26 | 2011-10-26 | High-pressure flow-dividing water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250003U true CN202250003U (en) | 2012-05-30 |
Family
ID=46111262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204130631U Expired - Fee Related CN202250003U (en) | 2011-10-26 | 2011-10-26 | High-pressure flow-dividing water distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161427A (en) * | 2013-03-28 | 2013-06-19 | 西南石油大学 | Multifunctional continuous circulating safety valve |
| CN103806884A (en) * | 2013-11-01 | 2014-05-21 | 中国石油天然气股份有限公司 | Three-layer separate injection string and oil well three-layer separate injection method |
-
2011
- 2011-10-26 CN CN2011204130631U patent/CN202250003U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161427A (en) * | 2013-03-28 | 2013-06-19 | 西南石油大学 | Multifunctional continuous circulating safety valve |
| CN103161427B (en) * | 2013-03-28 | 2015-07-01 | 西南石油大学 | Multifunctional continuous circulating safety valve |
| CN103806884A (en) * | 2013-11-01 | 2014-05-21 | 中国石油天然气股份有限公司 | Three-layer separate injection string and oil well three-layer separate injection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103184859B (en) | Exploitation device and method for injection and production in same well | |
| CN207568578U (en) | Self-flowing water injection pipe column | |
| CN203285408U (en) | High-pressure separate-layer water injection string | |
| CN202544824U (en) | Concentric double-pipe hierarchical injection pipe column | |
| CN202578589U (en) | Multifunctional pipe column with well washing, testing and separate-layer profile control and flooding water injection functions | |
| CN101942984A (en) | Fracture-cave type carbonate reservoir waterflooding oil replacement recovery method | |
| CN101936148B (en) | Adjustable water nozzle for oilfield water injection and water distributor with same | |
| CN110295879A (en) | A kind of staged fracturing horizontal well in segments period note adopts dual string | |
| CN109322647A (en) | Layered injection-production integrated pipe column and process | |
| CN203239303U (en) | Exploitation device for injection and production in the same well | |
| CN201372779Y (en) | Oil jacket communicating vessel | |
| CN204252980U (en) | Layered water injection string | |
| CN202250003U (en) | High-pressure flow-dividing water distributor | |
| CN202707018U (en) | Bridge type eccentric overflowing water distributor and blanking plug thereof | |
| CN103422846A (en) | Open hole horizontal well completion fracturing integrated pipe column | |
| CN1793606A (en) | Separate layer gas injection tube pile | |
| CN108386155A (en) | Double-eccentric integrated packer for water injection well of oil field | |
| CN208456570U (en) | A kind of extracting device of oil | |
| CN206346720U (en) | Leak stopping seal section | |
| CN201050355Y (en) | Polymer injection well eccentric distributor | |
| CN2908776Y (en) | Double-pipe filling technological tube column | |
| CN204804808U (en) | Unlimited polar sliding sleeve | |
| CN209179721U (en) | A kind of double feed liquor packers | |
| CN208718634U (en) | Dynamic monitoring system for horizontal water injection well | |
| CN207686699U (en) | Oil well thin-blending viscosity-reducing blending device and oil production system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20201026 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |