CN210948581U - Automatic setting cable-passing packer - Google Patents
Automatic setting cable-passing packer Download PDFInfo
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- CN210948581U CN210948581U CN201921907148.8U CN201921907148U CN210948581U CN 210948581 U CN210948581 U CN 210948581U CN 201921907148 U CN201921907148 U CN 201921907148U CN 210948581 U CN210948581 U CN 210948581U
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- cable
- cables
- rubber
- packer
- packing element
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Abstract
An automatic setting cable passing packer relates to the technical field of oilfield downhole tools and comprises a central tube and a rubber barrel, wherein axial through holes for cables to pass through are formed in a hoop and two ends of the rubber barrel, and the cables penetrate through the through holes; the rubber sleeve is internally provided with an annular groove, the side walls at the two ends of the annular groove are provided with conical bosses corresponding to the cables, the cables penetrate through the centers of the conical bosses, and the conical bosses are inwards attached to the outer wall of the cables through the elasticity of the rubber. The utility model discloses a set up the cable and made the expanding packer possess the cable function, in order to solve the sealed problem of cable hole, the utility model discloses set up the toper boss on the bearing surface in the packing element, after the bearing in the inboard ring channel of packing element, pressure acts on around the toper boss, makes the toper boss hug closely on the cable to reach the effect of sealed cable.
Description
Technical Field
The utility model belongs to the technical field of the oil field instrument in the pit, especially, relate to an automatic cable packer that sits and seal.
Background
A packer is a downhole tool commonly used in oil fields, and an expandable packer is an important type of packer. The structure of the expanding packer comprises a central pipe and a rubber sleeve, wherein the rubber sleeve is sleeved outside the central pipe, two ends of the rubber sleeve are fixed on the rubber sleeve through a hoop sleeve, and a narrow slit used for passing liquid is arranged at a position, corresponding to the inner side of the rubber sleeve, on the central pipe. When the packer works, high-pressure water in the central pipe enters a space between the central pipe and the rubber sleeve through the narrow slit, so that the rubber sleeve is outwards supported, and the setting of the packer is realized. However, although the packer is required to have a function of passing a cable in accordance with the application of the electronic device to the downhole of the oil well, the conventional expandable packer does not have the function of passing a cable, and therefore, it is necessary to design an expandable packer having the function of passing a cable.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem who exists among the background art, the utility model provides an automatic cable packer that sits.
The utility model provides a technical problem adopt following technical scheme to realize: the utility model provides an automatic setting cable passing packer, which comprises a central tube and a rubber tube, wherein the rubber tube is sleeved outside the central tube, two ends of the rubber tube are fixed on the central tube through a hoop, a narrow slit for passing through liquid is arranged at a position on the central tube corresponding to the inner side of the rubber tube, axial through holes for passing cables are arranged on the hoop and at two ends of the rubber tube, and cables are penetrated in the through holes;
the rubber sleeve is internally provided with an annular groove, the side walls at the two ends of the annular groove are provided with conical bosses corresponding to the cables, the cables penetrate through the centers of the conical bosses, and the conical bosses are inwards attached to the outer wall of the cables through the elasticity of the rubber.
The cable is a steel armored cable. And two ends of the rubber cylinder are vulcanized and connected to the central pipe.
The utility model has the advantages that: the utility model discloses a set up the cable and made the expanding packer possess the cable function, in order to solve the sealed problem of cable hole, the utility model discloses set up the toper boss on the bearing surface in the packing element, after the bearing in the inboard ring channel of packing element, pressure acts on around the toper boss, makes the toper boss hug closely on the cable to reach the effect of sealed cable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1-central tube, 2-hoop sleeve, 3-rubber tube, 4-narrow slit, 5-conical boss, 6-annular groove, 7-cable.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1, the present embodiment includes a central tube 1 and a rubber tube 3, the rubber tube 3 is sleeved outside the central tube 1, two ends of the rubber tube 3 are fixed on the central tube 2 through a hoop 2, the rubber tube 3 is made of rubber as a whole, and a narrow slit 4 for passing liquid is provided on the central tube 1 at a position corresponding to the inner side of the rubber tube 3. The above is a common structure in the prior art, and is not described herein again.
The utility model discloses a major structure characteristics lie in, hoop 2 on and the both ends of packing element 3 all be provided with the axial perforating hole that supplies cable 7 to pass through, wear cable 7 in the perforating hole. The inflatable packer is provided with a cable-through function by arranging the cable 7 so that the cable 7 providing communication and power supply for downhole electronics is passed through the inflatable packer.
It should be noted that, although a lot of packers that have now also possess the cable function, but all are the compression packer that the structure is very complicated, the utility model discloses compare in current cable packer, the structure is much simpler, and the cost advantage is very obvious.
The inside of the packing element 3 needs to withstand high hydraulic pressures when the inflatable packer is in operation, and therefore sealing around the cable 7 is a problem that must be solved. The utility model discloses in, be provided with ring channel 6 in the packing element 3, correspond with cable 7 on the lateral wall at ring channel 6 both ends and be provided with toper boss 5, cable 7 passes from toper boss 5's central authorities, and toper boss 5 inwards attaches on cable 7's outer wall through rubber self elasticity. The utility model discloses set up toper boss 5 on the bearing surface in packing element 3, after the bearing in 3 inboard ring channels 6 of packing element, pressure acts on around toper boss 5, makes toper boss 5 hug closely on cable 7 to reach sealed cable 7's effect, pressure is big more moreover, and rubber is big more with cable 7's contact pressure, and is sealed reliable more (sealed principle is similar with the sealed principle of rubber leather cup).
Cable 7 is steel armour cable, and this kind of cable is a cable commonly used in the oil field, and its outside is provided with stainless steel shell, uses the utility model discloses in be favorable to guaranteeing the sealed effect of cable 7 and packing element 3 contact surface.
And two ends of the rubber cylinder 3 are vulcanized and connected on the central tube 2, so that the sealing performance between the rubber cylinder 3 and the central tube 1 is further improved.
Claims (3)
1. The utility model provides an automatic sit cable packer that seals, includes center tube (1) and packing element (3), and packing element (3) cover is in the outside of center tube (1), and the both ends of packing element (3) are fixed on center tube (1) through hoop (2), and the position that corresponds with packing element (3) inboard on center tube (1) is provided with slot (4) that are used for crossing liquid, its characterized in that: axial through holes for the cables (7) to pass through are formed in the hoop sleeve (2) and the two ends of the rubber barrel (3), and the cables (7) penetrate through the through holes;
the rubber sleeve is characterized in that an annular groove (6) is formed in the rubber sleeve (3), tapered bosses (5) are correspondingly arranged on the side walls of the two ends of the annular groove (6) and the cables (7), the cables (7) penetrate through the centers of the tapered bosses (5), and the tapered bosses (5) are attached to the outer wall of the cables (7) through the inward elasticity of rubber.
2. An automatically set cabled packer according to claim 1, characterized in that: the cable (7) is a steel armored cable.
3. An automatically set cabled packer according to claim 1, characterized in that: and two ends of the rubber cylinder (3) are vulcanized and connected on the central tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921907148.8U CN210948581U (en) | 2019-11-07 | 2019-11-07 | Automatic setting cable-passing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921907148.8U CN210948581U (en) | 2019-11-07 | 2019-11-07 | Automatic setting cable-passing packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210948581U true CN210948581U (en) | 2020-07-07 |
Family
ID=71380206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921907148.8U Active CN210948581U (en) | 2019-11-07 | 2019-11-07 | Automatic setting cable-passing packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210948581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431518A (en) * | 2021-06-10 | 2021-09-24 | 王文龙 | Step-by-step cable-passing grinding-milling packer |
-
2019
- 2019-11-07 CN CN201921907148.8U patent/CN210948581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431518A (en) * | 2021-06-10 | 2021-09-24 | 王文龙 | Step-by-step cable-passing grinding-milling packer |
| CN113431518B (en) * | 2021-06-10 | 2022-11-01 | 王文龙 | Step-by-step cable-passing grinding-milling packer |
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