CN2668848Y - Eccentric injection-ditribution apparatus - Google Patents
Eccentric injection-ditribution apparatus Download PDFInfo
- Publication number
- CN2668848Y CN2668848Y CNU2004200183112U CN200420018311U CN2668848Y CN 2668848 Y CN2668848 Y CN 2668848Y CN U2004200183112 U CNU2004200183112 U CN U2004200183112U CN 200420018311 U CN200420018311 U CN 200420018311U CN 2668848 Y CN2668848 Y CN 2668848Y
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- injection allocation
- eccentric
- injection distribution
- main body
- injection
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Abstract
The utility model relates to a polymer displacement eccentric injection distribution device which relates to a stratification injection control device for a polymer displacement well of an oil field. The lower end of a main body (7) of the eccentric injection distribution device is fixedly connected with the upper end of a lower joint (9). A revising body (2) is connected with the main body (7) of the eccentric injection distribution device and is arranged in an outer center pipe (3). A guide body (8) is fixed to the upper side in the lower joint (9). The inner wall of the main body (7) of the eccentric injection distribution device is provided with an injection distribution chamber (4) in an axial direction. The outer wall of the main body (7) of the eccentric injection distribution device is provided with an injection distribution hole (5) communicated with the injection distribution chamber (4). The inner wall of the main body (7) of the eccentric injection distribution device is provided with a plurality of injection distribution cavities (6) communicated with the injection distribution chamber (4) in an annular direction. An injection distribution core (10) is arranged in the injection distribution chamber (4). The test, throwing, fishing and injection distribution technology of the utility model is the same as that of an eccentric stratification injector of the oil field, therefore, engineering and technical personnel can use the utility model after being trained. The utility model has the advantages of simple structure, convenient operation, accurate injection distribution and little viscosity loss of a polymer injecting process. The stage number of injection distribution stratification is not limited by the number of layers and sections.
Description
Technical field: the utility model relates to oil field polymer displacement oil well polymer layering injection control device.
Background technology: polymer flooding becomes the major technique means that the old liberated area, oil field keeps stable yields to improve the big and good in economic efficiency characteristics of amplitude of oil recovery factor.The overwhelming majority that polymer injection well adopted is that general the notes gathered.In order further to improve polymer flooding effect, improve the development degree of oil reservoir biglyyer, sizable application has proposed very urgent requirement to field produces to the polymer dispensing.Present dispensing mainly contains annular step-down slot type dispensing and utilizes the dispensing of screw pump as dispenser, and two kinds of dispensings all can not realize the depositing more than three layers.Utilizing screw pump is that sticking damage is low as the dispensing characteristics of dispenser, and the multi-zone flow regulating amount is by the control of screw rod pump delivery, and injection allocation is accurate, but its cost is higher, can not test, and under the situation of fixed tubular column, can't carry out the adjustment of injection allocation scheme according to geological scheme.The dispensing of annular step-down slot type is prone to after packer discharges, and pulls behind the gland of spraining formation fluid out and returns to tell and cause the sand plug phenomenon.
The utility model content: for solving the deficiency that prior art exists, the utility model has been developed a kind of gathering and has been driven eccentric injection allocation device, and it has simple in structure, easy to operate, injection allocation is accurate, and injection allocation branch number of levels is not limited by the interval number, the characteristics that the loss of polymer injection process medium viscosity is little.The utility model is by top connection 1, centralizer body 2, exterior central tube 3, eccentric injection allocation device main body 7, guide way 8, lower contact 9, injection allocation core 10 is formed, fixedly connected with the upper end of exterior central tube 3 in the lower end of top connection 1, the lower end of exterior central tube 3 is connected with the upper end of eccentric injection allocation device main body 7, fixedly connected with the upper end of lower contact 9 in the lower end of eccentric injection allocation device main body 7, centralizer body 2 links to each other with eccentric injection allocation device main body 7 and is located in the exterior central tube 3, guide way 8 is fixed on the upside in the lower contact 9, be axially arranged with injection allocation chamber 4 on the inwall of eccentric injection allocation device main body 7, have injection allocation hole 5 on the outer wall of eccentric injection allocation device main body 7, injection allocation hole 5 is connected with injection allocation chamber 4, hoop has several injection allocation chambeies 6 on the inwall of eccentric injection allocation device main body 7, injection allocation chamber 6 is connected with injection allocation chamber 4, and injection allocation core 10 is located in the injection allocation chamber 4.The eccentric seperated layer water injection device in test of the present utility model, pulling, allocation process and oil field is basic identical, and engineers and technicians train a little and can use.Have simple in structurely, easy to operate, injection allocation is accurate, and injection allocation branch number of levels is not limited by the interval number, the advantage that polymer injection process viscosity loss is little.
Description of drawings: Fig. 1 is an overall structure schematic diagram of the present utility model, and Fig. 2 is the structural representation that the utility model is taken away injection allocation core 10, and Fig. 3 is the structural representation of injection allocation core 10.
The specific embodiment one: (see that the present embodiment of Fig. 1～Fig. 3) is by top connection 1, centralizer body 2, exterior central tube 3, eccentric injection allocation device main body 7, guide way 8, lower contact 9, injection allocation core 10 is formed, fixedly connected with the upper end of exterior central tube 3 in the lower end of top connection 1, the lower end of exterior central tube 3 is connected with the upper end of eccentric injection allocation device main body 7, fixedly connected with the upper end of lower contact 9 in the lower end of eccentric injection allocation device main body 7, centralizer body 2 links to each other with eccentric injection allocation device main body 7 and is located in the exterior central tube 3, guide way 8 is fixed on the upside in the lower contact 9, be axially arranged with injection allocation chamber 4 on the inwall of eccentric injection allocation device main body 7, have injection allocation hole 5 on the outer wall of eccentric injection allocation device main body 7, injection allocation hole 5 is connected with injection allocation chamber 4, hoop has several injection allocation chambeies 6 on the inwall of eccentric injection allocation device main body 7, injection allocation chamber 6 is connected with injection allocation chamber 4, and injection allocation core 10 is located in the injection allocation chamber 4.Injection allocation core 10 is made up of fishing head 10-1, connector 10-2, injection allocation bar 10-3, guide head 10-4, fixedly connected with the upper end of connector 10-2 in the lower end of fishing head 10-1, fixedlying connected with the upper end of injection allocation bar 10-3 in the lower end of connector 10-2, fixedlys connected with guide head 10-4 in the lower end of injection allocation bar 10-3.Gap between the outer wall of injection allocation bar 10-3 and injection allocation chamber 4 inwalls is 0.5-3mm.
The specific embodiment two: the difference of the present embodiment and the specific embodiment one is that the gap between the outer wall of injection allocation bar 10-3 and injection allocation chamber 4 inwalls is 0.5～1.0mm, and other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: the difference of the present embodiment and the specific embodiment one is that the gap between the outer wall of injection allocation bar 10-3 and injection allocation chamber 4 inwalls is 1.1～1.5mm, and other composition is identical with the specific embodiment one with annexation.
The specific embodiment four: the difference of the present embodiment and the specific embodiment one is that the gap between the outer wall of injection allocation bar 10-3 and injection allocation chamber 4 inwalls is 1.6～2.0mm, and other composition is identical with the specific embodiment one with annexation.
The specific embodiment five: the difference of the present embodiment and the specific embodiment one is that the gap between the outer wall of injection allocation bar 10-3 and injection allocation chamber 4 inwalls is 2.1～2.5mm, and other composition is identical with the specific embodiment one with annexation.
The specific embodiment six: the difference of the present embodiment and the specific embodiment one is that the gap between the outer wall of injection allocation bar 10-3 and injection allocation chamber 4 inwalls is 2.6～3.0mm, and other composition is identical with the specific embodiment one with annexation.
The allotment of injection allocation amount is to adopt steel wire to carry throw in catcher to adjust the injection allocation core in the indoor degree of depth of injection allocation, and the injection allocation core is in the indoor degree of depth difference of injection allocation, and injection rate is also just different.
Claims (8)
1, gather and drive eccentric injection allocation device, it is by top connection (1), centralizer body (2), exterior central tube (3), eccentric injection allocation device main body (7), guide way (8), lower contact (9), injection allocation core (10) is formed, fixedly connected with the upper end of exterior central tube (3) in the lower end of top connection (1), the lower end of exterior central tube (3) is connected with the upper end of eccentric injection allocation device main body (7), fixedly connected with the upper end of lower contact (9) in the lower end of eccentric injection allocation device main body (7), centralizer body (2) links to each other with eccentric injection allocation device main body (7) and is located in the exterior central tube (3), guide way (8) is fixed on the upside in the lower contact (9), it is characterized in that being axially arranged with injection allocation chamber (4) on the inwall of eccentric injection allocation device main body (7), have injection allocation hole (5) on the outer wall of eccentric injection allocation device main body (7), injection allocation hole (5) is connected with injection allocation chamber (4), hoop has several injection allocation chambeies (6) on the inwall of eccentric injection allocation device main body (7), injection allocation chamber (6) is connected with injection allocation chamber (4), and injection allocation core (10) is located in the injection allocation chamber (4).
2, the poly-eccentric injection allocation device that drives according to claim 1, it is characterized in that injection allocation core (10) is made up of fishing head (10-1), connector (10-2), injection allocation bar (10-3), guide head (10-4), fixedly connected with the upper end of connector (10-2) in the lower end of fishing head (10-1), fixedlying connected with the upper end of injection allocation bar (10-3) in the lower end of connector (10-2), fixedlys connected with guide head (10-4) in the lower end of injection allocation bar (10-3).
3, according to claim 2 gathering driven eccentric injection allocation device, it is characterized in that the outer wall of injection allocation bar (10-3) and the gap between the inwall of injection allocation chamber (4) are 0.5～3mm.
4, according to claim 3 gathering driven eccentric injection allocation device, it is characterized in that the outer wall of injection allocation bar (10-3) and the gap between the inwall of injection allocation chamber (4) are 0.5～1.0mm.
5, according to claim 3 gathering driven eccentric injection allocation device, it is characterized in that the outer wall of injection allocation bar (10-3) and the gap between the inwall of injection allocation chamber (4) are 1.1～1.5mm.
6, according to claim 3 gathering driven eccentric injection allocation device, it is characterized in that the outer wall of injection allocation bar (10-3) and the gap between the inwall of injection allocation chamber (4) are 1.6～2.0mm.
7, according to claim 3 gathering driven eccentric injection allocation device, it is characterized in that the outer wall of injection allocation bar (10-3) and the gap between the inwall of injection allocation chamber (4) are 2.1～2.5mm.
8, according to claim 3 gathering driven eccentric injection allocation device, it is characterized in that the outer wall of injection allocation bar (10-3) and the gap between the inwall of injection allocation chamber (4) are 2.6～3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200183112U CN2668848Y (en) | 2004-01-07 | 2004-01-07 | Eccentric injection-ditribution apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200183112U CN2668848Y (en) | 2004-01-07 | 2004-01-07 | Eccentric injection-ditribution apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2668848Y true CN2668848Y (en) | 2005-01-05 |
Family
ID=34441452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200183112U Expired - Lifetime CN2668848Y (en) | 2004-01-07 | 2004-01-07 | Eccentric injection-ditribution apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2668848Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305056A (en) * | 2011-09-22 | 2012-01-04 | 哈尔滨工业大学 | Eccentric electric injection allocation device for polymer injection well |
-
2004
- 2004-01-07 CN CNU2004200183112U patent/CN2668848Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305056A (en) * | 2011-09-22 | 2012-01-04 | 哈尔滨工业大学 | Eccentric electric injection allocation device for polymer injection well |
| CN102305056B (en) * | 2011-09-22 | 2013-09-18 | 哈尔滨工业大学 | Eccentric electric injection allocation device for polymer injection well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140107 Granted publication date: 20050105 |