CN217439998U - Integral type fracturing layer packer tool and assembly of setting-free tool for cables - Google Patents
Integral type fracturing layer packer tool and assembly of setting-free tool for cables Download PDFInfo
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- CN217439998U CN217439998U CN202220746714.7U CN202220746714U CN217439998U CN 217439998 U CN217439998 U CN 217439998U CN 202220746714 U CN202220746714 U CN 202220746714U CN 217439998 U CN217439998 U CN 217439998U
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- piston rod
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- bridge plug
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Abstract
The utility model relates to the technical field of oil gas underground construction, in particular to a packing tool and a component between fracturing layers of a cable integral type setting-free tool, wherein the packing tool comprises a piston rod and a shell, the first end of the piston rod is used for being connected with a releasing rod of a bridge plug, the piston rod is provided with a sealed first inner cavity, explosives are arranged in the first inner cavity, and an ignition device connected with the outside of the piston rod is arranged; the first end of shell is used for the cone butt with the bridging plug, and the shell slip cover is established on the piston rod and is being close to the first end of shell and form first sealed chamber, link up through the air guide passageway between first inner chamber and the first sealed chamber. After the tool is connected with the bridge plug, when the tool enters a well to a set position, the explosive is detonated through the detonating device to generate high-pressure gas, the high-pressure gas enters the first sealing cavity through the gas guide channel, and then the releasing rod connected with the first end of the piston rod and the cone of the bridge plug abutted to the first end of the shell are pushed to generate relative motion, so that the setting of the bridge plug and the inner wall of the shaft is realized.
Description
Technical Field
The utility model relates to a technical field of oil gas underground construction, concretely relates to integral seat of exempting from of cable seals instrument fracturing layer and seals instrument and subassembly.
Background
In the field of oil and gas development and unconventional well completion processes, a setting tool and a bridge plug are usually used for downhole packing, the setting tool can often match bridge plugs of different manufacturers, other matching parts are required for connection of the setting tool and the bridge plug, and operation is complicated.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve foretell technical problem and provide a cable integral seat of exempting from seals instrument fracturing layer packing instrument and subassembly to realize convenient and fast's packing operation.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the fracturing interlayer packer tool of the cable integral type setting-free tool comprises a piston rod and a shell,
the first end of the piston rod is used for being connected with a releasing rod of the bridge plug, the piston rod is provided with a sealed first inner cavity, explosives are arranged in the first inner cavity, and the first inner cavity is provided with an ignition device connected with the outside of the piston rod;
the first end of the shell is used for being abutted to a cone of the bridge plug, the shell is sleeved on the piston rod in a sliding mode and is close to the first end of the shell to form a first sealing cavity, and the first inner cavity is communicated with the first sealing cavity through an air guide channel.
The utility model discloses a theory of operation and beneficial effect are: the first end of the piston rod is used for being connected with a releasing rod of the bridge plug, and the first end of the shell is used for being abutted to a cone of the bridge plug; on the ground, will seal and separate instrument and bridging plug and be connected, when instrument and bridging plug go into the well to the settlement position, detonate the explosive of first inner chamber through ignition device, produce high-pressure gas, high-pressure gas gets into first sealed chamber through the air guide channel, and then promotes the pole of giving up who is connected with the first end of piston rod and the conical body of bridging plug with the first end butt of shell and produce relative motion, realizes the setting of bridging plug and pit shaft inner wall. After the construction is completed, the setting tool is disassembled after the tool is lifted out of the well, and the well can be put into the well again by replacing a new packing tool; the fracturing step is simplified, the risk which possibly occurs when the ground maintenance of a conventional setting tool is avoided, one packer tool is used once, no additional matching accessory is needed, and the use is convenient.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, a second sealed cavity is arranged between the shell and the piston rod, and the second sealed cavity is close to the second end of the shell.
The beneficial effect of adopting the further scheme is that: the second sealing cavity is arranged, air is reserved in the sealing cavity, when the piston rod is pushed in the direction of the second end of the shell and moves, the piston rod cannot impact the shell, the piston rod cannot fall off from the shell, and the reliability of the power tool is ensured.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the second end of the shell is connected with the piston rod in a sealing mode through a piston rod sleeve, the piston rod is connected with the piston rod sleeve in a sliding mode, and a second sealing cavity is formed among the shell, the piston rod and the piston rod sleeve.
The beneficial effect of adopting the further scheme is that: and the piston rod sleeve is arranged, so that the piston rod and the shell can be conveniently installed.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the first seal cavity is an annular seal cavity.
The beneficial effect of adopting the further scheme is that: the annular sealing cavity is arranged, so that the thrust between the piston rod and the shell is balanced in the circumferential direction, and the reliability of the tool for setting the bridge plug is improved.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the air guide channel is multiple.
The beneficial effect of adopting the further scheme is that: the plurality of air guide holes enable high-pressure gas to be more smoothly transmitted into the first sealing cavity.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the second seal cavity is an annular seal cavity.
The beneficial effect of adopting the further scheme is that: the annular seal chamber is arranged such that the thrust between the piston rod and the housing is balanced in the circumferential direction.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the shell and the piston rod at two ends of the first sealing cavity are sealed through O-shaped sealing rings.
The beneficial effect of adopting the further scheme is that: the O-shaped sealing ring has good sealing effect.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the shell and the piston rod sleeve are sealed through an O-shaped sealing ring.
The beneficial effect of adopting the further scheme is that: the O-shaped sealing ring has good sealing effect.
The utility model also provides a packing instrument subassembly, including bridging plug and foretell cable integral seat of exempting from to seal instrument fracturing layer packing instrument, the first end of piston rod is connected with the release rod of bridging plug, the first end of shell and the cone butt of bridging plug.
The beneficial effect of packing instrument subassembly is: the packing tool is connected with the bridge plug to form a packing tool assembly, when the packing tool assembly enters a well to a set position, explosives in the first inner cavity are detonated through the detonating device to generate high-pressure gas, the high-pressure gas enters the first sealing cavity through the gas guide channel, and then the releasing rod connected with the first end of the piston rod and the cone of the bridge plug abutted to the first end of the shell are pushed to generate relative motion, so that the setting of the bridge plug and the inner wall of the shaft is realized. After the construction is completed, the setting tool is disassembled after the tool is lifted out of the well, and the well can be put into the well again by replacing a new packing tool; the fracturing step is simplified, the risk which possibly occurs when the ground maintenance of a conventional setting tool is avoided, one packer tool is used once, no additional matching accessory is needed, and the use is convenient.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of a packing tool of the present invention;
FIG. 2 is a view in one direction of FIG. 1;
FIG. 3 is a sectional view in one direction of FIG. 1;
FIG. 4 is a cross-sectional view of an embodiment of a packing tool assembly.
In the drawings, the components represented by the respective reference numerals are listed below:
1. piston rod, 11, air guide channel, 12, first inner cavity, 2, shell, 3, explosive, 4, piston rod sleeve, 51, first sealing cavity, 52, second sealing cavity, 6, cone, 7, hand throwing rod, 8, lower joint, 9, sealing ring, 10 and slip
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
The utility model discloses the structural schematic diagram of the embodiment one of the integral type setting-free instrument fracturing layer of cable seals apart instrument refers to fig. 1 to fig. 3.
The explosion-proof device comprises a piston rod 1 and a shell 2, wherein the first end of the piston rod 1 is used for being connected with a releasing rod 7 of a bridge plug, the piston rod 1 is provided with a sealed first inner cavity 12, an explosive 3 is arranged in the first inner cavity 12, and an explosion device connected with the outside of the piston rod 1 is arranged.
The first end of the shell 2 is used for abutting against the cone 6 of the bridge plug, the shell 2 is sleeved on the piston rod 1 in a sliding mode and forms a first sealing cavity 51 at the first end close to the shell 2, and the first inner cavity 12 is communicated with the first sealing cavity 51 through the air guide channel 11.
The working process of the embodiment is as follows: on the ground, the packing tool is connected with the bridge plug, the first end of the piston rod 1 is connected with the releasing rod 7 of the bridge plug, the first end of the shell 2 is abutted to the cone 6 of the bridge plug, when the tool and the bridge plug enter a well to a set position, the explosive 3 in the first inner cavity 12 is detonated through the detonating device to generate high-pressure gas, the high-pressure gas enters the first sealing cavity 51 through the gas guide channel 11, and then the releasing rod 7 connected with the first end of the piston rod 1 and the cone 6 of the bridge plug abutted to the first end of the shell 2 are pushed to generate relative motion, so that the setting of the bridge plug and the inner wall of a shaft is realized. After the construction is completed, the setting tool is disassembled after the tool is lifted out of the well, and the well can be put into the well again by replacing a new packing tool; the fracturing step is simplified, the risk which possibly occurs when the ground maintenance of a conventional setting tool is avoided, one packer tool is used once, no additional matching accessory is needed, and the use is convenient.
In this embodiment, the igniter device (i.e. igniter or firing igniter) is a conventional technique in the art and will not be described herein.
In this embodiment, a second sealed cavity 52 is further provided between the housing 2 and the piston rod 1, and the second sealed cavity 52 is close to the second end of the housing 2. Wherein, the second end of the housing 2 is connected with the piston rod 1 in a sealing manner through the piston rod sleeve 4, the piston rod 1 is connected with the piston rod sleeve 4 in a sliding manner, and a second sealing cavity 52 is formed among the housing 2, the piston rod 1 and the piston rod sleeve 4.
As shown, the second sealed chamber 52 is close to the second end of the housing 2, the left end of the housing 2 being shown, and air is reserved in the sealed chamber, so that when the piston rod 1 is pushed and moved in the direction of the second end of the housing 2, the piston rod 1 does not hit the housing 2 and the piston rod sleeve 4, and it is ensured that the piston rod 1 does not fall out of the housing 2.
In this embodiment, the first seal cavity 51 and the second seal cavity 52 are both annular seal cavities, that is, the seal cavities form annular seal cavities in the circumferential direction of the piston rod 1, so that the thrust between the piston rod 1 and the housing 2 is balanced in the circumferential direction, and the reliability of the tool for setting the bridge plug is improved.
In the present embodiment, the air guide passage 11 is plural; the plurality of gas-guide holes allows the high-pressure gas to be more smoothly transferred into the first seal chamber 51, and ensures that the pressure in the first seal chamber 51 is equalized in the circumferential direction.
In the present embodiment, the space between the housing 2 and the piston rod 1 at both ends of the first seal chamber 51 is sealed by an O-ring, and at the same time, the space between the housing 2 and the piston rod sleeve 4 is sealed by an O-ring.
The O-shaped sealing ring has good sealing effect and higher cost performance.
The utility model discloses a structure of an embodiment of packing instrument subassembly is shown in figure 4, including bridge plug and the above-mentioned cable integral type packer-free instrument fracturing layer packing instrument, the first end of piston rod 1 and the release rod 7 threaded connection of bridge plug, the first end of shell 2 and the cone 6 butt of bridge plug; wherein the handle bar 7 is connected with the lower joint 8 of the bridge plug.
The working principle of the packing tool assembly is as follows: the packing tool is connected with the bridge plug to form a packing tool assembly, when the packing tool assembly enters a well to a set position, the explosive 3 in the first inner cavity 12 is detonated through the detonating device to generate high-pressure gas, the high-pressure gas enters the first sealing cavity 51 through the gas guide channel 11 to further push the releasing rod 7 connected with the first end of the piston rod 1 and the cone 6 of the bridge plug abutted against the first end of the shell 2 to generate relative motion, the releasing rod 7 drives the lower joint 8 to push the slips 10 and the sealing ring 9 to generate relative motion with the cone 6, so that the slips 10 and the sealing ring 9 are radially expanded and sealed with the anchoring of the inner wall of the well shaft. After the construction is completed, the setting tool is disassembled after the tool is lifted out of the well, and the well can be put into the well again by replacing a new packing tool; the fracturing step is simplified, the risk which possibly occurs when the ground maintenance of a conventional setting tool is avoided, one packer tool is used once, no additional matching accessory is needed, and the use is convenient.
The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A fracturing layer interlayer packer tool of a cable integral type setting-free tool is characterized by comprising a piston rod and a shell,
the first end of the piston rod is used for being connected with a releasing rod of the bridge plug, the piston rod is provided with a sealed first inner cavity, explosives are arranged in the first inner cavity, and the first inner cavity is provided with an ignition device connected with the outside of the piston rod;
the first end of the shell is used for being abutted to a cone of the bridge plug, the shell is sleeved on the piston rod in a sliding mode and is close to the first end of the shell to form a first sealing cavity, and the first inner cavity is communicated with the first sealing cavity through an air guide channel.
2. The fracturing layer spacing tool of claim 1, wherein a second seal cavity is arranged between the housing and the piston rod, and the second seal cavity is close to the second end of the housing.
3. The fracturing layer spacing tool of claim 2, wherein the second end of the housing is in sealing connection with the piston rod through a piston rod sleeve, the piston rod is in sliding connection with the piston rod sleeve, and the second sealing cavity is formed among the housing, the piston rod and the piston rod sleeve.
4. The fracturing layer packer tool of claim 1, wherein the first seal cavity is an annular seal cavity.
5. The fracturing layer spacing tool of the cable integral type setting-free tool is characterized in that the number of the air guide channels is multiple.
6. The fracturing layer packer tool of claim 3, wherein the second seal cavity is an annular seal cavity.
7. The fracturing layer spacing tool of any one of claims 1 to 6, wherein the outer shell and the piston rod at two ends of the first sealing cavity are sealed through O-shaped sealing rings.
8. The fracturing layer spacing tool of claim 3, wherein the housing and the piston rod sleeve are sealed by an O-ring.
9. A packing tool assembly comprising a bridge plug and the cable integrated set-free tool fracturing zonal packing tool of any of claims 1-8, the first end of the piston rod being connected to the release rod of the bridge plug and the first end of the housing abutting the cone of the bridge plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220746714.7U CN217439998U (en) | 2022-04-01 | 2022-04-01 | Integral type fracturing layer packer tool and assembly of setting-free tool for cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220746714.7U CN217439998U (en) | 2022-04-01 | 2022-04-01 | Integral type fracturing layer packer tool and assembly of setting-free tool for cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217439998U true CN217439998U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220746714.7U Active CN217439998U (en) | 2022-04-01 | 2022-04-01 | Integral type fracturing layer packer tool and assembly of setting-free tool for cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217439998U (en) |
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2022
- 2022-04-01 CN CN202220746714.7U patent/CN217439998U/en active Active
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