CN203584424U - Underground layered testing sampling meter reducing packer structure - Google Patents
Underground layered testing sampling meter reducing packer structure Download PDFInfo
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- CN203584424U CN203584424U CN201320602911.2U CN201320602911U CN203584424U CN 203584424 U CN203584424 U CN 203584424U CN 201320602911 U CN201320602911 U CN 201320602911U CN 203584424 U CN203584424 U CN 203584424U
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- packing
- support ring
- sampling instrument
- packing element
- rubber cylinder
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Abstract
The utility model discloses an underground layered testing sampling meter reducing packer structure which comprises a hydraulic cylinder and a sampling meter, wherein the hydraulic cylinder is sleeved on a hollow guide rod. A piston in sliding fit with the hollow guide rod is arranged in the hydraulic cylinder, a packer rubber cylinder is arranged between the hydraulic cylinder and the sampling meter, rubber cylinder supporting rings are arranged at two ends of the packer rubber cylinder respectively, one rubber cylinder supporting ring is abutted to the piston, and the other rubber cylinder supporting ring is connected with the sampling meter. The underground layered testing sampling meter reducing packer structure is characterized in that the packer rubber cylinder is a rubber cylinder with the compression deformation rate reaching 30-70%, preferably, the packer rubber cylinder is a butyronitrile rubber cylinder with the compression deformation rate reaching 60%, the diameters of the rubber cylinder supporting rings are adjusted along with compression deformation of the packer rubber cylinder, preferably, the supporting rings are closed supporting rings comprising three same sub supports, joints of the sub supports are matched in an embedded manner through end face flanges and end face grooves, and the end face flanges can radially slide relative to the end face grooves, so that the diameters of the rubber cylinder supporting rings are expanded. The underground layered testing sampling meter reducing packer structure can meet packer requirements of oil wells with different hole diameters, and working efficiency is improved.
Description
Technical field
The utility model relates to the capping tools for oil field well oil-separating layer, refers to particularly a kind of laminated distributor under well test sampling instrument reducing packing structure.
Background technology
In order to grasp the actual state of each oil reservoir of producing well, need to adopt zonal testing sampling instrument that down-hole oil reservoir is tested and sampled.At present, the packer being applied on zonal testing sampling instrument is the conventional packing structure of oil well delamination, yet because the diameter of oil well is not quite similar, in order to adapt to the oil well of different pore size, just need to change the packer adapting with oil well, so just cause the labour intensity that sampling instrument operation sequence is complicated, increase workman, inefficiency, takies the oil mining time.
Summary of the invention
The purpose of this utility model is to provide a kind of laminated distributor under well test sampling instrument reducing packing structure that different pore size oil well test needs that is suitable for.
For achieving the above object, the laminated distributor under well test sampling instrument reducing packing structure that the utility model is designed, comprise the hydraulic cylinder and the sampling instrument that are set on hollow guiding bar, in described hydraulic cylinder, be provided with the piston being slidably matched with hollow guiding bar, between described hydraulic cylinder and sampling instrument, be provided with packing rubber sleeve, the two ends of described packing rubber sleeve are respectively arranged with packing element support ring, and one of them packing element support ring and piston butt, another packing element support ring is connected with sampling instrument, and its special character is: described packing rubber sleeve is that compression deformation rate reaches 30～70% packing element; Described packing element support ring is the support ring that diameter regulates with packing rubber sleeve compress variation.
Further, described packing rubber sleeve preferred compressed deformation rate reaches 55～65% acrylonitrile-butadiene rubber packing element, and preferably compression deformation rate reaches 60% acrylonitrile-butadiene rubber packing element.The sealing needs that can adapt to like this, most different pore size oil wells.
As preferred version, described packing element support ring consists of the annulus of a sealing at least two identical sub-supporters, preferably three identical sub-supporters, consists of the annulus of a sealing.Cooperation is set by end face flange and end face groove in the junction of described sub-supporter, and described end face flange can be with respect to end face groove radial slippage, thus the swollen footpath of realizing packing element support ring.Like this, the diameter of packing element support ring increases with the compressive strain of packing rubber sleeve, both can guarantee packing effect, can extend again the life-span of packing rubber sleeve.
Further, on the exterior arc surface of described sub-supporter, be provided with spring caulking groove, in described spring groove, be provided with lock ring spring.Like this, can make packing element support ring when breathing, remain complete annular, guarantee its supporting & stablizing, compression uniform force application.
Again further, it also comprises ring type filling, after described ring type filling is arranged on the swollen footpath of packing element support ring and in the annular space forming between hollow guiding bar.Like this, can the swollen footpath of cartridge support ring after formed annular space, guarantee that packing is reliable for effect.
The beneficial effects of the utility model are: by adopting the packing rubber sleeve of aximal deformation value, can adapt to the packing needs of various apertures oil well; By changing the structure of packing element support ring, can change the size of diameter, can effectively prevent the packing rubber sleeve rheology that packing rubber sleeve and oil-well wall excesssive gap cause, improve the bearing capacity of packing rubber sleeve, thereby meet the packing requirement of different pore size oil well, improve the operating efficiency of sampling instrument.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional schematic of laminated distributor under well test sampling instrument reducing packing structure;
Fig. 2 is the perspective exploded view of packing element support ring in Fig. 1, and wherein lock ring spring does not draw;
Fig. 3 is the assembling schematic diagram of packing element support ring shown in Fig. 2;
Fig. 4 is the cross-sectional schematic of another kind of laminated distributor under well test sampling instrument reducing packing structure, demonstration be the state after hole enlargement;
Fig. 5 is that the structure of packing shown in Fig. 4 is in the cross-sectional schematic of initial confined state.
In figure: hydraulic cylinder 1, piston 2, hollow guiding bar 3, packing rubber sleeve 4, packing element support ring 5(wherein: upper packing element support ring 5.1, lower rubber cylinder support ring 5.2, sub-supporter 5.3, end face flange 5.31, end face groove 5.32, spring caulking groove 5.4), sampling instrument 6, lock ring spring 7, ring type filling 8.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
A kind of laminated distributor under well test sampling instrument reducing packing structure as shown in Figure 1, comprise the hydraulic cylinder 1 and the sampling instrument 6 that are set on hollow guiding bar 3, in hydraulic cylinder 1, be provided with the piston 2 being slidably matched with hollow guiding bar 3, between hydraulic cylinder 1 and sampling instrument 6, be provided with the packing rubber sleeve 4 of large compress variation, the two ends of packing rubber sleeve 4 are respectively arranged with packing element support ring 5, for convenience of description by it is called upper packing element support ring 5.1 and lower rubber cylinder support ring 5.2 respectively, wherein going up packing element support ring 5.1 coordinates with piston 2 butts, lower rubber cylinder support ring 5.2 is fixedly connected with sampling instrument 6.Hollow guiding bar 3 mainly plays guiding, cross oil acts on, and hydraulic cylinder 1 provides compression power by piston 2 for packing rubber sleeve 4, and 5.2 of upper packing element support ring 5.1 and lower rubber cylinder support rings play the effect of compression, support packing rubber sleeve 4.
For adapting to the shutoff needs of different pore size oil well, above-mentioned packing rubber sleeve 4 adopts compression deformation rate to reach 30～70% packing element, and preferred compressed deformation rate reaches 55～65% acrylonitrile-butadiene rubber packing element.In the present embodiment, packing rubber sleeve 4 adopts compression deformation rate to reach 60% acrylonitrile-butadiene rubber packing element.
As shown in Fig. 2～3, the support ring that upper packing element support ring 5.1 and lower rubber cylinder support ring 5.2 adopt diameter to regulate with packing rubber sleeve 4 compress variations.Particularly, upper packing element support ring 5.1 and lower rubber cylinder support ring 5.2 consist of the annulus of a sealing three identical sub-supporters 5.3, cooperation is set by end face flange 5.31 and end face groove 5.32 in the junction of three sub-supporters 5.3, end face flange 5.31 can be with respect to end face groove 5.32 radial slippage, thereby realize the swollen footpath of upper packing element support ring 5.1 and lower rubber cylinder support ring 5.2.In order to keep better the globality of three sub-supporter 5.3 combinations, on the exterior arc surface of each sub-supporter 5.3, be provided with spring caulking groove 5.4, in spring groove 5.4, be provided with lock ring spring 7, lock ring spring 7 produces three sub-supporters 5.3 of radial load banding, thereby makes packing element support ring 5 remain complete.
Action principle of the present utility model is as follows: the hydraulic oil in hydraulic cylinder 1 promotes piston 2 and moves downward along hollow guiding bar 3, that is upper packing element support ring 5.1 moves downward under the effect of piston 2, yet lower rubber cylinder support ring 5.2 is relative with sampling instrument 6 static, therefore the distance between upper packing element support ring 5.1 and lower rubber cylinder support ring 5.2 is dwindled gradually, thereby 4 distortion of compression packing packing element, to reach the object of packing different pore size oil well oil reservoir.
Another kind of laminated distributor under well test sampling instrument reducing packing structure as shown in Figure 4, its structure is substantially the same manner as Example 1, just it also comprises ring type filling 8, after ring type filling 8 is arranged on packing element support ring 5.1 and the swollen footpath of lower rubber cylinder support ring 5.2 and in the annular space forming between hollow guiding bar 3, for preventing its retraction.When the present embodiment is installed and used, as shown in Figure 5, can first two ring type fillings 8 be arranged on respectively between piston 2 and upper packing element support ring 5.1, between sampling instrument 6 and lower rubber cylinder support ring 5.2.While needing packing large aperture oil well, the end face flange 5.31 of sub-supporter 5.3 is outwards slided along adjacent end face groove 5.32, then ring type filling 8 is put into the annular space forming between the inwall of packing element support ring 5 and piston rod 3, thereby realized hole enlargement.The object of hole enlargement is mainly to improve sealing effectiveness, if the diameter of packing element support ring 5 is constant, compressive strain along with packing rubber sleeve 4 when running into large aperture oil well increases, packing element support ring 5 can be to packing rubber sleeve 4 the inside depressions under the effect of pressure, thereby affected packing effect, also affected the life-span of packing rubber sleeve 4 simultaneously.The present embodiment has solved these difficult problems effectively.
Claims (10)
1. laminated distributor under well is tested sampling instrument reducing packing structure, comprise the hydraulic cylinder (1) and the sampling instrument (6) that are set on hollow guiding bar (3), in described hydraulic cylinder (1), be provided with the piston (2) being slidably matched with hollow guiding bar (3), between described hydraulic cylinder (1) and sampling instrument (6), be provided with packing rubber sleeve (4), the two ends of described packing rubber sleeve (4) are respectively arranged with packing element support ring (5), and one of them packing element support ring (5) and piston (2) butt, another packing element support ring (5) is connected with sampling instrument (6), it is characterized in that: described packing rubber sleeve (4) reaches 30～70% packing element for compression deformation rate, described packing element support ring (5) is the support ring that diameter regulates with packing rubber sleeve (4) compress variation.
2. laminated distributor under well according to claim 1 test sampling instrument reducing packing structure, is characterized in that: described packing rubber sleeve (4) reaches 55～65% acrylonitrile-butadiene rubber packing element for compression deformation rate.
3. laminated distributor under well according to claim 1 test sampling instrument reducing packing structure, is characterized in that: described packing rubber sleeve (4) reaches 60% acrylonitrile-butadiene rubber packing element for compression deformation rate.
4. according to the laminated distributor under well test sampling instrument reducing packing structure described in claim 1 or 2 or 3, it is characterized in that: described packing element support ring (5) consists of the annulus of a sealing at least two identical sub-supporters (5.3), cooperation is set by end face flange (5.31) and end face groove (5.32) in the junction of described sub-supporter (5.3), described end face flange (5.31) can be with respect to end face groove (5.32) radial slippage, thus the swollen footpath of realizing packing element support ring (5).
5. laminated distributor under well test sampling instrument reducing packing structure according to claim 4, is characterized in that: described packing element support ring (5) consists of the annulus of a sealing three identical sub-supporters (5.3).
6. laminated distributor under well test sampling instrument reducing packing structure according to claim 4, is characterized in that: on the exterior arc surface of described sub-supporter (5.3), be provided with spring caulking groove (5.4), be provided with lock ring spring (7) in described spring groove (5.4).
7. laminated distributor under well test sampling instrument reducing packing structure according to claim 5, is characterized in that: on the exterior arc surface of described sub-supporter (5.3), be provided with spring caulking groove (5.4), be provided with lock ring spring (7) in described spring groove (5.4).
8. laminated distributor under well according to claim 4 is tested sampling instrument reducing packing structure, it is characterized in that: it also comprises ring type filling (8), after described ring type filling (8) is arranged on the swollen footpath of packing element support ring (5) and in the annular space forming between hollow guiding bar (3).
9. laminated distributor under well according to claim 5 is tested sampling instrument reducing packing structure, it is characterized in that: it also comprises ring type filling (8), after described ring type filling (8) is arranged on the swollen footpath of packing element support ring (5) and in the annular space forming between hollow guiding bar (3).
10. laminated distributor under well according to claim 7 is tested sampling instrument reducing packing structure, it is characterized in that: it also comprises ring type filling (8), after described ring type filling (8) is arranged on the swollen footpath of packing element support ring (5) and in the annular space forming between hollow guiding bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602911.2U CN203584424U (en) | 2013-09-27 | 2013-09-27 | Underground layered testing sampling meter reducing packer structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602911.2U CN203584424U (en) | 2013-09-27 | 2013-09-27 | Underground layered testing sampling meter reducing packer structure |
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| Publication Number | Publication Date |
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| CN203584424U true CN203584424U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320602911.2U Expired - Lifetime CN203584424U (en) | 2013-09-27 | 2013-09-27 | Underground layered testing sampling meter reducing packer structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510905A (en) * | 2013-09-27 | 2014-01-15 | 武汉三江航天远方科技有限公司 | Underground stratification testing sampling instrument variable-diameter packing structure |
-
2013
- 2013-09-27 CN CN201320602911.2U patent/CN203584424U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510905A (en) * | 2013-09-27 | 2014-01-15 | 武汉三江航天远方科技有限公司 | Underground stratification testing sampling instrument variable-diameter packing structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |