CN209761382U - Horizontal well high pressure resistant packer for reservoir transformation - Google Patents
Horizontal well high pressure resistant packer for reservoir transformation Download PDFInfo
- Publication number
- CN209761382U CN209761382U CN201920487880.8U CN201920487880U CN209761382U CN 209761382 U CN209761382 U CN 209761382U CN 201920487880 U CN201920487880 U CN 201920487880U CN 209761382 U CN209761382 U CN 209761382U
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- packing element
- horizontal well
- high pressure
- pressure resistant
- rubber cylinder
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- 230000009466 transformation Effects 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 abstract description 36
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a high pressure resistant packer of horizontal well for reservoir transformation, including the center tube, the outside cover of center tube is equipped with the packing element, the both ends of packing element are fixed through packing element seal receptacle and center tube, the middle part outside of packing element is equipped with annular arc arch, be equipped with the feed liquor through-hole on the lateral wall of center tube, the both ends of center tube are equipped with first joint and second respectively and connect, the both sides of packing element still are equipped with high-pressure seal mechanism, high-pressure seal mechanism is including setting up the sealed tube in the packing element outside, the tip of sealed tube is equipped with a plurality of extension pieces that lean out the extension, the outside of extending the piece is equipped with helicitic texture, be equipped with fastening nut on a plurality of extension pieces. The utility model discloses a be equipped with high-pressure seal mechanism at the both ends of packing element and seal, improved its withstand voltage ability effectively, convenient to detach and installation moreover.
Description
Technical Field
the utility model relates to a packer specifically is a horizontal well high pressure resistant packer for reservoir transformation.
Background
The fracturing process is a commonly used stimulation process in oilfield development. Fracturing is a method for forming cracks in oil and gas layers by utilizing the hydraulic action in the oil or gas production process. After the oil reservoir is pressed out of many cracks, proppant (such as quartz sand and the like) is added to fill the cracks, so that the permeability of the oil-gas reservoir is improved, and the oil production is increased. The expansion packer is a common downhole tool in the fracturing process, and because the working pressure of the packer in the fracturing process is greatly higher than that in other processes, the expansion packer has higher requirements on the bearing capacity, stability and reliability of the packer.
The rubber sleeve component is a main functional component of the packer and plays a decisive role in the pressure bearing capacity of the packer. The rubber sleeve component of the inflatable packer in the prior art is generally composed of a rubber sleeve and two joints which are vulcanized and connected at two ends of the rubber sleeve, and the rubber sleeve with the structure is easy to break away from the joints and lose efficacy when bearing high pressure. Therefore, the high-pressure-resistant packer for the horizontal well for reservoir transformation is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a horizontal well high pressure resistant packer for reservoir transformation to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a reservoir reforms transform and uses horizontal well high pressure resistant packer, includes the center tube, the outside cover of center tube is equipped with the packing element, the both ends of packing element are fixed with the center tube through the packing element seal receptacle, the middle part outside of packing element is equipped with annular arc arch, be equipped with the feed liquor through-hole on the lateral wall of center tube, the both ends of center tube are equipped with first joint and second respectively and connect, the both sides of packing element still are equipped with high-pressure sealing mechanism, high-pressure sealing mechanism is including setting up the sealed tube in the packing element outside, the tip of sealed tube is equipped with a plurality of extension pieces that lean out to extend, the outside of extending the piece is equipped with helicitic texture, be equipped with fastening nut on a plurality of extension pieces.
Preferably, the inner wall of the extension piece is provided with a convex block, and the inner wall surfaces of the extension piece and the sealing tube are provided with buffer layers.
Preferably, the rubber cylinder is made of high-temperature-resistant and corrosion-resistant rubber materials.
Preferably, the arc-shaped bulge is internally provided with a cavity corresponding to the liquid inlet through hole.
Preferably, the length of the rubber cylinder is smaller than that of the central tube.
preferably, the central tube is made of high-strength stainless steel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a both ends at the packing element are equipped with high-pressure seal mechanism, and wherein high-pressure seal mechanism is including setting up the sealed tube in the packing element outside, the tip of sealed tube is equipped with a plurality of extension pieces that lean out to extend, the outside of extending the piece is equipped with the helicitic texture, be equipped with fastening nut on a plurality of extension pieces, when sealing up the both ends to the packing element, at first rotate fastening nut, then extend the piece and inwards contract, come to consolidate the tip of packing element, improved the pressure-resistant ability of packing element effectively, through to the intraductal injected liquid of center when using, in liquid enters into the cavity in the packing element, the packing element inflation is separated.
2. The utility model provides a be equipped with the lug on the inner wall of extension piece, the inner wall surface of extending piece and sealed tube all is equipped with the buffer layer for packing element and center tube in close contact with have improved its compressive capacity.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic structural view of the sealing tube of the present invention;
Fig. 4 is a schematic structural view of the high-pressure sealing mechanism of the present invention;
FIG. 5 is a state diagram of the high-pressure sealing mechanism of the present invention sealing the rubber cylinder;
Fig. 6 is an enlarged view at a in fig. 5.
In the figure: 1 center tube, 2 packing element, 3 packing element seal receptacle, 4 arc arch, 5 cavitys, 6 feed liquor through-holes, 7 first joints, 8 second joint, 9 high-pressure sealing mechanism, 10 sealed tubes, 11 extension piece, 12 helicitic texture, 13 fastening nut, 14 lugs, 15 buffer layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a reservoir transformation is with horizontal well high pressure resistant packer, includes center tube 1, and the outside cover of center tube 1 is equipped with packing element 2, packing element 2's both ends are fixed through packing element seal receptacle 3 and center tube 1, the middle part outside of packing element 2 is equipped with annular arc arch 4, be equipped with feed liquor through-hole 6 on center tube 1's the lateral wall, the both ends of center tube 1 are equipped with first joint 7 and second respectively and connect 8, packing element 1's both sides still are equipped with high-pressure sealing mechanism 9, high-pressure sealing mechanism 9 is including setting up the sealed tube 10 in the packing element 1 outside, the tip of sealed tube 10 is equipped with a plurality of extension pieces 11 that lean out to extend, the outside of extending piece 11 is equipped with helicitic texture 12, be equipped with fastening nut 13 on a plurality of extension pieces 11.
Furthermore, the inner wall of the extension sheet 11 is provided with a convex block 14, and the inner wall surfaces of the extension sheet 11 and the sealing tube 10 are both provided with buffer layers 15, so that the rubber cylinder 2 is in close contact with the central tube 1, and the pressure resistance of the rubber cylinder is improved.
Further, the buffer layer 15 is a rubber layer or a plastic layer, wherein a steel wire is embedded in the rubber sleeve 2, so that the bearing capacity of the rubber sleeve is increased.
Further, the inside of arc arch 4 is equipped with cavity 5 corresponding with feed liquor through-hole 6, injects the liquid into cavity 5 and expands.
Further, the length of the rubber sleeve 2 is smaller than that of the central tube 1.
furthermore, the central tube 1 is made of high-strength stainless steel and is corrosion-resistant.
Specifically, the utility model discloses a be equipped with high-pressure seal mechanism 9 at the both ends of packing element 2, wherein high-pressure seal mechanism 9 is including setting up the sealed tube 10 in the packing element 2 outside, and the tip of sealed tube 10 is equipped with a plurality of extension pieces 11 that lean out and extend, the outside of extending piece 11 is equipped with helicitic texture 12, be equipped with fastening nut 13 on a plurality of extension pieces 11, when sealing up the both ends of packing element 2, at first rotate fastening nut 13, then extend 11 internal contraction, come to consolidate the tip of packing element 2, improved packing element 2's compressive capacity effectively, through pouring into liquid into central tube 1 when using, in liquid enters into the cavity in packing element 2, packing element 2 inflation is separated, and this high-pressure seal mechanism 9 has the characteristics of convenient to detach and installation simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a horizontal well high pressure resistant packer for reservoir transformation which characterized in that: comprises a central tube (1), a rubber cylinder (2) is sleeved outside the central tube (1), two ends of the rubber cylinder (2) are fixed with the central tube (1) through a rubber cylinder sealing seat (3), the outer side of the middle part of the rubber cylinder (2) is provided with an annular arc-shaped bulge (4), the side wall of the central tube (1) is provided with a liquid inlet through hole (6), a first joint (7) and a second joint (8) are respectively arranged at two ends of the central pipe (1), two sides of the rubber cylinder (2) are also provided with high-pressure sealing mechanisms (9), the high-pressure sealing mechanisms (9) comprise sealing pipes (10) arranged on the outer side of the rubber cylinder (2), the end part of the sealing tube (10) is provided with a plurality of extension sheets (11) extending outwards and slantways, the outer side of the extension pieces (11) is provided with a thread structure (12), and the plurality of extension pieces (11) are provided with fastening nuts (13).
2. The high pressure resistant packer of horizontal well for reservoir transformation as claimed in claim 1, wherein: the inner wall of the extension piece (11) is provided with a convex block (14), and the inner wall surfaces of the extension piece (11) and the sealing tube (10) are provided with buffer layers (15).
3. the high pressure resistant packer of horizontal well for reservoir transformation as claimed in claim 2, wherein: the buffer layer (15) is a rubber layer or a plastic layer.
4. The high pressure resistant packer of horizontal well for reservoir transformation as claimed in claim 1, wherein: the rubber cylinder (2) is made of high-temperature-resistant and corrosion-resistant rubber materials.
5. The high pressure resistant packer of horizontal well for reservoir transformation as claimed in claim 1, wherein: the inside of arc arch (4) is equipped with cavity (5) that correspond with feed liquor through-hole (6).
6. The high pressure resistant packer of horizontal well for reservoir transformation as claimed in claim 1, wherein: the length of the rubber cylinder (2) is less than that of the central tube (1).
7. The high pressure resistant packer of horizontal well for reservoir transformation as claimed in claim 1, wherein: the central tube (1) is made of high-strength stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920487880.8U CN209761382U (en) | 2019-04-11 | 2019-04-11 | Horizontal well high pressure resistant packer for reservoir transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920487880.8U CN209761382U (en) | 2019-04-11 | 2019-04-11 | Horizontal well high pressure resistant packer for reservoir transformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761382U true CN209761382U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920487880.8U Active CN209761382U (en) | 2019-04-11 | 2019-04-11 | Horizontal well high pressure resistant packer for reservoir transformation |
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| Country | Link |
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| CN (1) | CN209761382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847018A (en) * | 2021-09-30 | 2021-12-28 | 于婷婷 | General pilot production tool for packing off earth formation |
-
2019
- 2019-04-11 CN CN201920487880.8U patent/CN209761382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113847018A (en) * | 2021-09-30 | 2021-12-28 | 于婷婷 | General pilot production tool for packing off earth formation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200706 Address after: 257000 Ji'nan Road, Dongying District, Shandong, No. 125, No. Co-patentee after: EXPLORATION AND DEVELOPMENT RESEARCH INSTITUTE OF SINOPEC SHENGLI OILFIELD Co. Patentee after: China Petroleum & Chemical Corp. Address before: 257093 No.2, Liaocheng Road, Dongying District, Dongying City, Shandong Province Patentee before: Yu Jianfei |
|
| TR01 | Transfer of patent right |