CN216008461U - Novel well completion instrument protection barrel - Google Patents
Novel well completion instrument protection barrel Download PDFInfo
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- CN216008461U CN216008461U CN202122158100.5U CN202122158100U CN216008461U CN 216008461 U CN216008461 U CN 216008461U CN 202122158100 U CN202122158100 U CN 202122158100U CN 216008461 U CN216008461 U CN 216008461U
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- well completion
- short section
- completion instrument
- instrument
- hanging
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Abstract
The utility model belongs to the technical field of oil gas exploitation equipment, especially, relate to a novel well completion instrument protection section of thick bamboo. The device comprises a well completion instrument hanging short section, an upper protection barrel short section and a lower protection barrel short section, wherein a shearing pin is arranged on the upper protection barrel short section, and a well completion instrument hanging surface is arranged on the lower protection barrel short section; the upper protection cylinder short section and the lower protection cylinder short section are connected through threads; the sum of the lengths of the upper protection barrel short section and the lower protection barrel short section is greater than the sum of the lengths of the hanging short section of the well completion instrument and the well completion instrument; the middle part of the well completion instrument hanging nipple is provided with a hanging platform with the inner diameter larger than that of the well completion instrument hanging surface, and the upper end of the well completion instrument hanging nipple is clamped between the shearing pin and the well completion instrument hanging surface. The technical problem that the existing horizontal well completion instrument is damaged if the pressure is too high when the instrument is in the lowering process is solved.
Description
Technical Field
The utility model belongs to the technical field of oil gas exploitation equipment, especially, relate to a novel well completion instrument protection section of thick bamboo.
Background
The horizontal well is a well with a well bore track reaching 90 degrees horizontally and then extending for a certain depth, and well completion is independent engineering for linking well drilling and oil extraction, and comprises system engineering for starting drilling a hydrocarbon reservoir, starting to lower production pipe, filling a cement ancient well, perforating, lower production pipe, draining liquid and putting into production. During the lowering process of the horizontal well completion equipment, due to various acting forces of the well wall on the instrument, the instrument is damaged due to excessive resistance of the instrument in the well structure occasionally during the lowering process of the completion instrument. At present, no good solution exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel well completion instrument protection section of thick bamboo has solved current horizontal well completion instrument and is transferring the in-process, if meet and hinder back pressure too big, can lead to the technical problem that the instrument damaged.
In order to achieve the purpose, the novel well completion instrument protection cylinder comprises a well completion instrument hanging short section, an upper protection cylinder short section and a lower protection cylinder short section, wherein a shearing pin is arranged on the upper protection cylinder short section, and a well completion instrument hanging surface is arranged on the lower protection cylinder short section; the upper protection cylinder short section and the lower protection cylinder short section are connected through threads; the sum of the lengths of the upper protection barrel short section and the lower protection barrel short section is greater than the sum of the lengths of the hanging short section of the well completion instrument and the well completion instrument; the middle part of the well completion instrument hanging nipple is provided with a hanging platform with the inner diameter larger than that of the well completion instrument hanging surface, and the upper end of the well completion instrument hanging nipple is arranged between the shearing pin and the well completion instrument hanging surface; the lower end of the hanging short section of the well completion instrument is connected with the well completion instrument; the inner diameters of the upper protection cartridge short section and the lower protection cartridge short section are larger than the outer diameter of a well completion instrument.
Further, at least one length adjusting short joint is arranged between the upper protection cylinder short joint and the lower protection cylinder short joint; two ends of the length adjusting short section are movably connected with the upper protection cylinder short section and the lower protection cylinder short section; the shearing pin is arranged on the length adjusting short section connected with the lower protection barrel short section.
Further, the shear pin withstood a maximum shear force of 2000 kg.
Furthermore, a drill rod buckle is arranged at the upper end of the upper protection barrel short section and is connected with a drill rod through the drill rod buckle.
Furthermore, the inner diameter of the upper protection barrel nipple is consistent with that of the length adjusting nipple after the upper protection barrel nipple and the length adjusting nipple are connected.
Further, a screen is arranged at the bottom of the upper protection barrel nipple.
Furthermore, a screen is arranged on the length adjusting short joint connected with the lower protection barrel short joint.
The utility model discloses compare prior art's beneficial effect is: under the condition of overlarge downward resistance of a well completion instrument, the instrument can be timely retracted into the protection cylinder, so that the instrument is effectively protected from being damaged due to overlarge bearing pressure; furthermore, the length can be freely adjusted according to the length of the well completion instrument, and the device is suitable for various well completion instruments and is more convenient to use in a combined mode.
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.
Description of reference numerals: 1. a protective cylinder; 1.1, buckling a drill rod; 1.2, adjusting the length of the short section; 1.3, an upper protection cylinder short section; 1.4, a lower protective cylinder short section; 1.5, hanging the surface by a well completion instrument; 1.6, shearing pins; 1.7, a screen mesh; 2. hanging short joints of the well completion instrument; 2.1, a shearing head; 2.2, hanging and buckling a well completion instrument; 2.3, hanging the platform;
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Illustratively, the length-adjusting nipples 1.2 are three, and are selected for use according to the length of the well completion instrument.
Illustratively, the shear pin 1.6 withstands a maximum shear force of 2000 kg.
Illustratively, a drill rod buckle 1.1 is arranged at the upper end of the upper protection barrel short section 1.3 and is connected with a drill rod through the drill rod buckle 1.1.
Illustratively, the inner diameter of the upper protection barrel short joint 1.3 is consistent with that of the length adjusting short joint 1.2 after the connection.
Illustratively, a screen mesh 1.7 is arranged on a length adjusting short joint 1.2 connected with a lower protection barrel short joint 1.4 and used for removing water or gas inside when the well completion instrument hanging short joint 2 enters into the protection barrel.
The working principle and the working process are as follows: in the using process, the number of the pup joints 1.2 is selected according to the length of a well completion instrument, then the well completion instrument hanging pup joint 2 is inserted from the upper end of the lower protective sleeve pup joint 1.4, the hanging platform 2.3 is in butt joint with the well completion instrument hanging surface 1.5, and the well completion instrument is connected to the well completion instrument hanging buckle 2.2 at the lower end of the well completion instrument hanging pup joint 2. And then the length adjusting short section 1.2 provided with the shearing pin 1.6 or the upper protection cylinder short section 1.3 is connected with the lower protection cylinder short section 1.4, so that the shearing head 2.1 is supported on the shearing pin 1.6, and the drill rod buckle 1.1 on the upper part of the upper protection cylinder short section 1.3 is connected with a drill rod. In the process of lowering the well completion instrument, the instrument is continuously lowered under the action of the drill rod, when the resistance of a barrier is overlarge, the well completion instrument hangs the shearing head 2.1 at the upper end of the short section 2 through the well completion instrument, the shearing pin 1.6 is sheared, and then the well completion instrument enters the protection barrel 1, so that the well completion instrument is protected, and the damage caused by overlarge pressure is prevented. Simple structure, the practicality is strong.
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. A novel well completion instrument protection barrel is characterized in that: the device comprises a well completion instrument hanging short section, an upper protection barrel short section and a lower protection barrel short section, wherein a shearing pin is arranged on the upper protection barrel short section, and a well completion instrument hanging surface is arranged on the lower protection barrel short section; the upper protection cylinder short section and the lower protection cylinder short section are connected through threads; the sum of the lengths of the upper protection barrel short section and the lower protection barrel short section is greater than the sum of the lengths of the hanging short section of the well completion instrument and the well completion instrument; the upper part of the well completion instrument hanging nipple is provided with a hanging platform with the inner diameter larger than that of the well completion instrument hanging surface, and the upper end of the well completion instrument hanging nipple is arranged between the shearing pin and the well completion instrument hanging surface; the lower end of the hanging short section of the well completion instrument is connected with the well completion instrument; the inner diameters of the upper protection cartridge short section and the lower protection cartridge short section are larger than the outer diameter of a well completion instrument.
2. The novel completion instrument protection sleeve of claim 1, wherein: at least one length adjusting short joint is arranged between the upper protection cylinder short joint and the lower protection cylinder short joint; two ends of the length adjusting short section are movably connected with the upper protection cylinder short section and the lower protection cylinder short section; the shearing pin is arranged on the length adjusting short section connected with the lower protection barrel short section.
3. The novel completion instrument protection sleeve of claim 2, wherein: the shear pin withstood a maximum shear of 2000 kg.
4. The novel completion instrument protection sleeve of claim 1, wherein: and a drill rod buckle is arranged at the upper end of the upper protection barrel nipple and is connected with a drill rod through the drill rod buckle.
5. The novel completion instrument protection sleeve of claim 2, wherein: the inner diameter of the upper protection barrel nipple is consistent with that of the length adjusting nipple after the upper protection barrel nipple and the length adjusting nipple are connected.
6. The novel completion instrument protection sleeve of claim 1, wherein: the bottom of the upper protection barrel nipple is provided with a screen.
7. The novel completion instrument protection sleeve of claim 2, wherein: and a screen is arranged on the length adjusting short joint connected with the lower protection barrel short joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122158100.5U CN216008461U (en) | 2021-09-08 | 2021-09-08 | Novel well completion instrument protection barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122158100.5U CN216008461U (en) | 2021-09-08 | 2021-09-08 | Novel well completion instrument protection barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008461U true CN216008461U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122158100.5U Active CN216008461U (en) | 2021-09-08 | 2021-09-08 | Novel well completion instrument protection barrel |
Country Status (1)
| Country | Link |
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| CN (1) | CN216008461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145452A (en) * | 2023-07-10 | 2023-12-01 | 中国地质大学（武汉） | Up-down separation type detector protection tube transmission mechanism for deep detection |
-
2021
- 2021-09-08 CN CN202122158100.5U patent/CN216008461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117145452A (en) * | 2023-07-10 | 2023-12-01 | 中国地质大学（武汉） | Up-down separation type detector protection tube transmission mechanism for deep detection |
| CN117145452B (en) * | 2023-07-10 | 2024-03-26 | 中国地质大学（武汉） | Up-down separation type detector protection tube transmission mechanism for deep detection |
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