CN201083123Y - Double-allocation mode eccentric center water-distributing device - Google Patents
Double-allocation mode eccentric center water-distributing device Download PDFInfo
- Publication number
- CN201083123Y CN201083123Y CNU2007201769064U CN200720176906U CN201083123Y CN 201083123 Y CN201083123 Y CN 201083123Y CN U2007201769064 U CNU2007201769064 U CN U2007201769064U CN 200720176906 U CN200720176906 U CN 200720176906U CN 201083123 Y CN201083123 Y CN 201083123Y
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- main body
- seal section
- injection well
- flow regulator
- well downhole
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Abstract
A double allocation type eccentric water distribution device mainly solves the problems that the prior common water distribution mode and bridge type eccentric water distribution mode can not be selected at will according to the requirements of allocation and testing. The utility model is characterized in that: a water injection channel (4), which is arranged between the blanking plug mounting hole and the central hole of a water distributor main body (1), is arranged on the side wall of the central hole of the water distributor main body (1); moreover, the water injection channel (4) is communicated with a central channel (5). The utility model, which combines the advantages of common eccentric water distribution process and bridge type eccentric water distribution process, can be selected at will according to the requirements of allocation and testing, thereby completing testing allocation through adopting both common and bridge type testing allocation methods.
Description
Technical field:
The utility model relates to a kind of separated-zone water infection oil field and testing arrangement, belongs to a kind of double-allocation mode eccentric center water-distributing device.
Background technology:
Eccentric water distribution pipe column is mainly adopted in water injection well in oil fields water distribution at present, and commonly used have conventional water distribution tubing string and a bridge-type eccentric water distribution tubing string.
Existing conventional injection well downhole flow regulator agent structure has the blanking plug installing hole, and from the bottom water inlet in this hole, through blanking plug and water nozzle, the aperture from this hole sidewall enters the stratum during water filling.Flow rate test and the seal section of testing Feng Shijun employing single-skin drum bowl structure, during flow rate test, flow meter is installed in the top of single seal section, the sealing cup of seal section is stuck in position, main center hole, seal the injection well downhole flow regulator passage, the water yield enters below the injection well downhole flow regulator by flow meter and seal section endoporus, the flow that records is for this injection well downhole flow regulator and with the water injection rate of lower floor position, the Total Water at the water filling water yield=this place of this layer under certain pressure-lower floor's injection well downhole flow regulator place Total Water, seal section is successively from the orlop injection well downhole flow regulator, on the body passageways of each injection well downhole flow regulator, set from bottom to up, the test, on carry the flow rate test that deblocking is finished a pressure spot of full well.When testing envelope, seal section top connects pressure gauge, the sealing cup of seal section is stuck in position, injection well downhole flow regulator main center hole, seal the injection well downhole flow regulator body passageways, by the control water injection pressure, adopt on/off-pass or oco mode to record the situation of change of seal section, judge the sealing condition of packer with this with lower tubular column pressure.During operation also be seal section from the orlop injection well downhole flow regulator, successively from bottom to up set on the body passageways of each injection well downhole flow regulator, test, on carry deblocking and finish full well and test envelope.
The structure of the main body of existing bridge-type eccentric injection well downhole flow regulator has the blanking plug installing hole, the main center hole of injection well downhole flow regulator communicates with the blanking plug installing hole, the water injection rate of this layer is intake from centre bore during water filling, and through blanking plug and water nozzle, the aperture from blanking plug installing hole sidewall enters the stratum.Owing to also have passageway bridge on the injection well downhole flow regulator main body, the water injection rate of other interval is all passed through by passageway bridge.Flow rate test and the seal section of testing Feng Shijun employing double leather cup structure, promptly in the main center hole of injection well downhole flow regulator, leather cup of upper and lower each fastening in the hole that centre bore communicates with the blanking plug installing hole, under the sealing of leather cup, the water yield that enters this layer enters the stratum by flow meter and seal section inner passage, blanking plug and water nozzle, and the flow that records directly is the water injection rate of this layer position.And the flow of other layers position enters the layer position of bottom by passageway bridge, does not influence the flow of this layer position.Flow rate test with test the envelope mode and compare just and change single-skin drum bowl seal section into the double leather cup seal section with conventional injection well downhole flow regulator, the water yield of being surveyed directly be the water injection rate of each layer, need not calculate, and tests that to seal interpretive mode also identical.
Conventional eccentric center water-distributing technology comparative maturity, test envelope accuracy rate height, but error is big, the water distribution quality is low because the water distribution of employing diminishing method exists, and bridge-type eccentric water distribution technology, though realize the allotment of individual layer section, the water distribution precision is higher tests that the envelope accuracy rate is lower, tubing string is missed problems such as searching difficulty.Because injection well downhole flow regulator agent structure and seal section structural reason in above-mentioned two kinds of water distribution modes, one that can only choose is aborning wherein carried out water distribution, and these two kinds of water distribution modes can not be selected arbitrarily according to the needs of allotment and test.
The utility model content:
Can not be in order to solve existing conventional water distribution mode and bridge-type eccentric water distribution mode according to the optional deficiency of needs of allotment and test, the utility model provides a kind of double-allocation mode eccentric center water-distributing device, this double-allocation mode eccentric center water-distributing device unites two into one conventional eccentric center water-distributing technology and bridge-type eccentric water distribution technological advantage, can select arbitrarily according to the needs of allotment and test, realize conventional and the bridge-type measuring and regulating method can both be finished and surveys accent.
The technical solution of the utility model is: this double-allocation mode eccentric center water-distributing device comprises injection well downhole flow regulator main body and testing seal section, have centre bore and blanking plug installing hole on the injection well downhole flow regulator main body, in the centre bore on the injection well downhole flow regulator main body and in the blanking plug installing hole testing seal section and blanking plug are housed respectively, have central passage on the testing seal section, blanking plug installing hole on the injection well downhole flow regulator main body and the waterflood path between the centre bore on the injection well downhole flow regulator main body leave on the sidewall in injection well downhole flow regulator main center hole, and waterflood path communicates with central passage.
Above-mentioned testing seal section is the single-skin drum bowl structure, comprises the seal section main body, and the seal section main body is equipped with leather cup outward, has central passage on the seal section main body.
Above-mentioned testing seal section also can be the double leather cup structure, comprise the seal section main body, the seal section main body is equipped with leather cup and down cup outward, have central passage and passageway bridge on the seal section main body, the port of export of central passage is between last leather cup and down cup, the entrance point of passageway bridge is at the upside of last leather cup, the port of export of passageway bridge is at the downside of down cup, down cup places in the centre bore of waterflood path below on the injection well downhole flow regulator main body, the centre bore of injection well downhole flow regulator main body is divided into three chambeies of upper, middle and lower by last leather cup and down cup, and the entrance end of passageway bridge communicates with the upper and lower cavity of injection well downhole flow regulator main body respectively.
The utlity model has following beneficial effect: owing to take such scheme, when using the testing seal section of single-skin drum bowl structure, eccentric center water-distributing technology is finished to survey and is transferred routinely; Also the testing seal section of single-skin drum bowl structure can be taken out as required, change the testing seal section of double leather cup structure, finish to survey by bridge-type eccentric water distribution technology and transfer.This water dispensing apparatus unites two into one conventional eccentric center water-distributing technology and bridge-type eccentric water distribution technological advantage, can select arbitrarily according to the needs of allotment and test, has realized conventional and the bridge-type measuring and regulating method can both be finished and surveys accent.
Description of drawings:
Accompanying drawing 1 is a structure sectional view of the present utility model;
Accompanying drawing 2 is that testing seal section 2 is the structure sectional view of double leather cup among Fig. 1.
1-injection well downhole flow regulator main body among the figure, 2-testing seal section, 3-blanking plug, 4-waterflood path, 5-central passage, 6-seal section main body, the last leather cup of 7-, 8-down cup, 9-passageway bridge.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, this double-allocation mode eccentric center water-distributing device comprises injection well downhole flow regulator main body 1 and testing seal section 2, have centre bore and blanking plug installing hole on the injection well downhole flow regulator main body 1, in the centre bore on injection well downhole flow regulator main body 1 and in the blanking plug installing hole testing seal section 2 and blanking plug 3 are housed respectively, have central passage 5 on the testing seal section 2, blanking plug installing hole on the injection well downhole flow regulator main body 1 and the waterflood path 4 between the centre bore on the injection well downhole flow regulator main body 1 leave on the sidewall of injection well downhole flow regulator main body 1 centre bore, and waterflood path 4 communicates with central passage 5.Testing seal section 2 is the single-skin drum bowl structure, comprises seal section main body 6, outside the seal section main body 6 leather cup 7 is housed, and has central passage 5 on the seal section main body 6, and during use, its water distribution technology is identical with existing conventional eccentric center water-distributing technology.
As shown in Figure 2, testing seal section 2 also can be the double leather cup structure, comprise seal section main body 6, seal section main body 6 outer leather cup 7 and the down cups 8 of being equipped with, have central passage 5 and passageway bridge 9 on the seal section main body 6, the port of export of central passage 5 is between last leather cup 7 and down cup 8, the entrance point of passageway bridge 9 is at the upside of last leather cup 7, the port of export of passageway bridge 9 is at the downside of down cup 8, down cup 8 places in the centre bore of waterflood path 4 belows on the injection well downhole flow regulator main body 1, the centre bore of injection well downhole flow regulator main body 1 is divided into three chambeies of upper, middle and lower by last leather cup 7 and down cup 8, the entrance end of passageway bridge 9 communicates with the upper and lower cavity of injection well downhole flow regulator main body 1 respectively, passageway bridge 9 has substituted the passageway bridge on the injection well downhole flow regulator in the prior art, and during use, its water distribution technology is identical with existing bridge-type eccentric water distribution technology.
In sum, because the utility model is to the improvement of injection well downhole flow regulator main body 1 structure and testing seal section 2 structures, realized conventional and the bridge-type measuring and regulating method can both be finished and surveys accent, conventional eccentric center water-distributing technology and bridge-type eccentric water distribution technological advantage are united two into one, can select arbitrarily according to the needs of allotment and test.
Claims (3)
1. double-allocation mode eccentric center water-distributing device, comprise injection well downhole flow regulator main body (1) and testing seal section (2), have centre bore and blanking plug installing hole on the injection well downhole flow regulator main body (1), in the centre bore on injection well downhole flow regulator main body (1) and in the blanking plug installing hole testing seal section (2) and blanking plug (3) are housed respectively, have central passage (5) on the testing seal section (2), it is characterized in that: the waterflood path (4) between the centre bore on blanking plug installing hole on the injection well downhole flow regulator main body (1) and the injection well downhole flow regulator main body (1) leaves on the sidewall of injection well downhole flow regulator main body (1) centre bore, and waterflood path (4) communicates with central passage (5).
2. double-allocation mode eccentric center water-distributing device according to claim 1, it is characterized in that: testing seal section (2) is the single-skin drum bowl structure, comprise seal section main body (6), seal section main body (6) is outer to be equipped with leather cup (7), has central passage (5) on the seal section main body (6).
3. double-allocation mode eccentric center water-distributing device according to claim 1, it is characterized in that: testing seal section (2) is the double leather cup structure, comprise seal section main body (6), outer leather cup (7) and the down cup (8) of being equipped with of seal section main body (6), have central passage (5) and passageway bridge (9) on the seal section main body (6), the port of export of central passage (5) is between last leather cup (7) and down cup (8), the entrance point of passageway bridge (9) is at the upside of last leather cup (7), the port of export of passageway bridge (9) is at the downside of down cup (8), the injection well downhole flow regulator main body (1) that places down cup (8) goes up in the centre bore of waterflood path (4) below, the centre bore of injection well downhole flow regulator main body (1) is divided into three chambeies of upper, middle and lower by last leather cup (7) and down cup (8), and the entrance end of passageway bridge (9) communicates with the upper and lower cavity of injection well downhole flow regulator main body (1) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201769064U CN201083123Y (en) | 2007-09-21 | 2007-09-21 | Double-allocation mode eccentric center water-distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201769064U CN201083123Y (en) | 2007-09-21 | 2007-09-21 | Double-allocation mode eccentric center water-distributing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083123Y true CN201083123Y (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201769064U Expired - Fee Related CN201083123Y (en) | 2007-09-21 | 2007-09-21 | Double-allocation mode eccentric center water-distributing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083123Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564034A (en) * | 2014-12-13 | 2015-04-29 | 贵州航天凯山石油仪器有限公司 | Sealing examining device and sealing examining method for bridge offset well |
| WO2021092945A1 (en) * | 2019-11-15 | 2021-05-20 | 大庆市海兴石油科技发展有限公司 | New eccentric water distributor capable of performing seal inspection under pressure |
-
2007
- 2007-09-21 CN CNU2007201769064U patent/CN201083123Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564034A (en) * | 2014-12-13 | 2015-04-29 | 贵州航天凯山石油仪器有限公司 | Sealing examining device and sealing examining method for bridge offset well |
| WO2021092945A1 (en) * | 2019-11-15 | 2021-05-20 | 大庆市海兴石油科技发展有限公司 | New eccentric water distributor capable of performing seal inspection under pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20100921 |