CN201198754Y - Split stream matched pouring machine - Google Patents
Split stream matched pouring machine Download PDFInfo
- Publication number
- CN201198754Y CN201198754Y CNU200820080710XU CN200820080710U CN201198754Y CN 201198754 Y CN201198754 Y CN 201198754Y CN U200820080710X U CNU200820080710X U CN U200820080710XU CN 200820080710 U CN200820080710 U CN 200820080710U CN 201198754 Y CN201198754 Y CN 201198754Y
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- CN
- China
- Prior art keywords
- allocator
- allocation device
- injection allocation
- split flow
- device body
- 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 - Lifetime
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Abstract
The utility model relates to a split flow allocator which is characterized in that the split flow allocator comprises a pipe-column-shaped allocator body. The upper part of the allocator body is provided with an internal thread joint with conicity. The lower part of the internal thread joint is provided with a split flow baffle which has smooth surface. The lower part of the split flow baffle inclines to and smoothly connected with the internal wall of the allocator body, dividing the cavity of the allocator body into two parts; wherein, one part is communicated with the outlet at one side of the allocator body, and the other part is communicated with an external thread joint with conicity at the lower part of the allocator body. The split flow allocator has small local pressure drop loss, low friction coefficient and small shearing action, effectively reduces the loss of the viscosity of injected polymer, and can be widely used in the work of improving oil recovery ratio by displacing the oil with the help of the polymer on offshore oil field.
Description
Technical field
The utility model relates to a kind of part flow arrangement, particularly about implementing the shunting injection allocation device that polymer displacement of reservoir oil uses in a kind of oilfield exploitation at sea.
Background technology
Offshore oilfield adopts the method for the injection of polymer displacement of reservoir oil to solve for improving the extraction efficient in existing oil field usually, thereby reaches the purpose that improves recovery ratio and improve field output.Polymer displacement of reservoir oil tech is that the chemical polymerization thing is injected oil reservoir, the viscosity by polymer chemistry effect diluent crude oil, decomposes moisture and will be stored at each complicated oil reservoir and be difficult for the crude oil extruding of exploitation or receive out, gathers so that oil production machine is concentrated.At sea the oil field is implemented to annotate in the work of poly-(abbreviation of polymer displacement of reservoir oil) raising recovery ratio, because the polymer molecular weight of injecting is big, therefore wish in injection string and the nozzle place, avoid because flow at high speed causes the reduction of shearing the polymer liquid stream viscosity of bringing as far as possible, and still do not have ripe product-feed in the market.
Summary of the invention
At the problems referred to above, it is little that the purpose of this utility model provides a kind of shear action, can reduce the shunting injection allocation device of polymeric liquid viscosity loss.
For achieving the above object, the utility model is taked following technical scheme: a kind of shunting injection allocation device, it is characterized in that: it comprises the injection allocation device body of a tubing string shape, described injection allocation device body top is provided with the internal thread interface of a band tapering, the bottom of described internal thread interface is provided with a ganoid shunting barrier, the bottom of described shunting barrier to the lopsidedness of described injection allocation device inner body wall and with its smooth connection, the inner chamber of described injection allocation device body is divided into two parts, wherein a part communicates with the outlet of described injection allocation device body one side, and another part communicates with the external screw thread interface of the band tapering that described injection allocation device body bottom is provided with.
The utility model is owing to take above technical scheme, it has the following advantages: 1, shunting injection allocation device of the present utility model, owing to be provided with a shunting baffle, therefore when polymeric liquid is flowed through the shunting injection allocation device, polymeric liquid can be separated into two parts, a part is divided to the upper strata oil reservoirs, another part continues to flow downward and enters other oil reservoir, not only can finish and be divided into injection allocation, and according to this principle, can on the different aspects of the poly-pipe of a post, the utility model shunting injection allocation device be set respectively, thereby be implemented in layered polymer injection in the oil reservoirs.2, the utility model is owing to be provided with a shunting injection allocation device on the poly-pipe of notes, and be connected to the shunting barrier smooth surface in the shunting injection allocation device outlet of injection allocation device body, therefore, make through the partial drop of pressure loss of the utility model shunting injection allocation device little, mill resistance coefficient is low, shear action is little, has reduced the loss of injection of polymer viscosity effectively.The utility model can be widely used in offshore oilfield and implement in the work of polymer displacement of reservoir oil raising recovery ratio.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the schematic top plan view of Fig. 1
Fig. 3 is the schematic side view of Fig. 1
Fig. 4 is that the utility model is at underground work situation schematic diagram
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Shown in Fig. 1～3, the utility model comprises the injection allocation device body 1 of a tubing string shape, be provided with the internal thread interface 2 of a band tapering on injection allocation device body 1 top, be provided with a ganoid shunting barrier 3 in the bottom of internal thread interface 2, the bottom of shunting barrier 3 to the lopsidedness of injection allocation device body 1 inwall and with its smooth connection, and then the inner chamber of injection allocation device body 1 is divided into two parts, wherein a part communicates with the outlet 4 of injection allocation device body 1 one sides, and another part communicates with the external screw thread interface 5 of the band tapering that injection allocation device body 1 bottom is provided with.
As shown in Figure 4, when the utility model uses, the internal thread interface 2 on injection allocation device body 1 top is connected with the poly-oil pipe 6 of the notes of its top, external screw thread interface 5 with its below notes gather oil pipe 7 and be connected.Polymeric liquid injects from annotating poly-pipe 6, is divided into two parts after entering injection allocation device body 1, and a part is from exporting the 4 a certain oil reservoirs 8 that are transported to producing well, and another part is transported to another oil reservoirs 9 of producing well from external screw thread interface 5.
By that analogy, the utility model can be provided with the utility model shunting injection allocation device respectively on the different aspects of the poly-pipe of a post, thereby is implemented in layered polymer injection in the oil reservoirs.
Claims (1)
1. shunting injection allocation device, it is characterized in that: it comprises the injection allocation device body of a tubing string shape, described injection allocation device body top is provided with the internal thread interface of a band tapering, the bottom of described internal thread interface is provided with a ganoid shunting barrier, the bottom of described shunting barrier to the lopsidedness of described injection allocation device inner body wall and with its smooth connection, the inner chamber of described injection allocation device body is divided into two parts, wherein a part communicates with the outlet of described injection allocation device body one side, and another part communicates with the external screw thread interface of the band tapering that described injection allocation device body bottom is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820080710XU CN201198754Y (en) | 2008-05-20 | 2008-05-20 | Split stream matched pouring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820080710XU CN201198754Y (en) | 2008-05-20 | 2008-05-20 | Split stream matched pouring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198754Y true CN201198754Y (en) | 2009-02-25 |
Family
ID=40449910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820080710XU Expired - Lifetime CN201198754Y (en) | 2008-05-20 | 2008-05-20 | Split stream matched pouring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198754Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270648B (en) * | 2008-05-20 | 2011-10-05 | 中国海洋石油总公司 | Shunting injection allocation method and shunting injection allocation machine |
| CN102434134A (en) * | 2011-11-25 | 2012-05-02 | 中国石油天然气股份有限公司 | Method for exploiting high viscous and congealable crude oil with water-jet cutting technology |
-
2008
- 2008-05-20 CN CNU200820080710XU patent/CN201198754Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270648B (en) * | 2008-05-20 | 2011-10-05 | 中国海洋石油总公司 | Shunting injection allocation method and shunting injection allocation machine |
| CN102434134A (en) * | 2011-11-25 | 2012-05-02 | 中国石油天然气股份有限公司 | Method for exploiting high viscous and congealable crude oil with water-jet cutting technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090225 Effective date of abandoning: 20080520 |