CN219281717U - Adjustable middle joint of connecting device for precise perforation - Google Patents
Adjustable middle joint of connecting device for precise perforation Download PDFInfo
- Publication number
- CN219281717U CN219281717U CN202320807226.7U CN202320807226U CN219281717U CN 219281717 U CN219281717 U CN 219281717U CN 202320807226 U CN202320807226 U CN 202320807226U CN 219281717 U CN219281717 U CN 219281717U
- Authority
- CN
- China
- Prior art keywords
- screw
- tooth cavity
- sleeve
- block
- precise
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of oilfield production equipment, and particularly relates to an adjustable middle joint of a connecting device for precise perforation, which comprises a positioning pin, a fixing sleeve, a positioning block, a sealing ring, a gun body connecting sleeve, a connecting body, a screw tooth cavity, a locking thread head, a cone, an anchor tooth block and a set screw; the locating pin is arranged in a pin hole at the left end of the screw tooth cavity, the gun body connecting sleeve is arranged on the screw tooth cavity, the locating block and the fixing sleeve are arranged in the gun body connecting sleeve, and the fixing sleeve is locked and fixed by the set screw; the connecting body is sleeved with the sealing ring and then connected with the screw tooth cavity, and the locking thread head, the cone and the anchor tooth block are sequentially arranged in the screw tooth cavity. The middle joint can realize circumferential phase modulation and axial length adjustment of the upper and lower precise perforators, and has the advantages of simple structure, convenient operation, firm and reliable connection and the like.
Description
Technical Field
The utility model belongs to the technical field of oilfield production equipment, and particularly relates to an adjustable middle joint of a connecting device for precise perforation.
Background
With the development of oil fields, after a part of oil wells are produced for a long time, perforation tunnels and stratum pores are blocked due to serious scale formation in the wells, so that the oil yield is obviously reduced. If the oil well is not fully developed by the residual oil in the perforated interval, the waste of energy is caused. For this purpose, a precision perforation same-hole secondary perforation process (i.e., re-perforating in the original perforation) is proposed. In order to realize the perforation process, a connecting device between perforators needs to be designed and developed, and the circumferential phase adjustment of the upper connecting end and the lower connecting end can be realized by the connecting device, and the axial length adjustment of the upper end and the lower end is also realized.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an adjustable middle joint of a connecting device for precise perforation, which can realize circumferential phase modulation and axial length adjustment of an upper precise perforating tool and a lower precise perforating tool and has the advantages of simple structure, convenient operation, firm and reliable connection and the like.
The utility model adopts the technical scheme that: the adjustable middle joint of the connecting device for the precise perforation comprises a positioning pin, a fixed sleeve, a positioning block, a sealing ring, a gun body connecting sleeve, a connecting body, a screw tooth cavity, a locking thread head, a cone, an anchor tooth block and a set screw; the locating pin is arranged in a pin hole at the left end of the screw tooth cavity, the gun body connecting sleeve is arranged on the screw tooth cavity, the locating block and the fixing sleeve are arranged in the gun body connecting sleeve, and the fixing sleeve is locked with the fixing sleeve through the set screw; the connecting body is sleeved with the sealing ring and then connected with the screw tooth cavity, and the locking thread head, the cone and the anchor tooth block are sequentially arranged in the screw tooth cavity.
Further, the number of the sealing rings is at least two.
The utility model has the beneficial effects that: the adjustable middle joint of the connecting device for various precise perforating is mainly used for precise perforating, plays a role in connecting upper and lower precise perforating tools, and can effectively adjust the relative perforating orientation and perforating spacing between the upper and lower perforating tools; the middle joint can realize circumferential phase modulation and axial length adjustment of the upper and lower precise perforators, and has the advantages of simple structure, convenient operation, firm and reliable connection and the like.
Drawings
Fig. 1 is a schematic structural view of the first embodiment.
Detailed Description
Examples
Referring to fig. 1, an adjustable middle joint of a connecting device for precision perforation comprises a positioning pin 1, a fixed sleeve 2, a positioning block 3, a sealing ring 4, a gun body connecting sleeve 5, a connecting body 6, a screw tooth cavity 7, a locking thread head 8, a cone 9, an anchor tooth block 10 and a set screw 11.
The locating pin is arranged in a pin hole at the left end of the screw tooth cavity, the gun body connecting sleeve is arranged on the screw tooth cavity, the locating block and the fixing sleeve are arranged in the gun body connecting sleeve, and the fixing sleeve is locked with the fixing sleeve through the set screw; the connecting body is sleeved with the sealing ring and then connected with the screw tooth cavity, and the locking thread head, the cone and the anchor tooth block are sequentially arranged in the screw tooth cavity; the rotary locking thread head pushes the cone to support the anchor tooth block, so that the anchor tooth block is prevented from falling.
The adjustable middle joint is mainly used for connecting an upper precise perforating tool and a lower precise perforating tool, the left end of the device is connected with the lower end of the precise perforating tool, the right end of the device is connected with the upper end of the precise perforating tool, when the adjustable middle joint is required to be connected, the assembled middle joint right end is firstly connected with the upper end of the lower column precise perforating tool, after the connection is completed, an angle adjuster is arranged at the upper end of the precise perforating tool, a screw tooth cavity is adjusted to enable the phase and the span of the adjustable middle joint upper end and the adjustable lower end to meet the perforation parameter requirements according to known perforation parameters, a locking head is screwed to push a cone body to expand and connect an anchor tooth block on the inner wall of a connecting body, and at the moment, the phase and the span of the adjustable middle joint upper end and the lower end are fixedly locked. And finally, connecting the left end of the adjustable middle joint with the lower end of the upper column precision perforator by rotating the gun body connecting sleeve. At this time, the assembly, adjustment and connection of the adjustable intermediate joint are completed. The device is mainly used for precise perforation, plays a role in connecting an upper precise perforating tool and a lower precise perforating tool, and can effectively adjust the relative perforation azimuth and perforation interval between the upper and lower perforating tools connected in the middle; the middle joint can realize circumferential phase modulation and axial length adjustment of the upper and lower precise perforators, and has the advantages of simple structure, convenient operation, firm and reliable connection and the like.
Claims (2)
1. An adjustable middle joint of a connecting device for precise perforation is characterized in that: the adjustable middle joint of the connecting device for the precise perforation comprises a positioning pin, a fixed sleeve, a positioning block, a sealing ring, a gun body connecting sleeve, a connecting body, a screw tooth cavity, a locking thread head, a cone, an anchor tooth block and a set screw; the locating pin is arranged in a pin hole at the left end of the screw tooth cavity, the gun body connecting sleeve is arranged on the screw tooth cavity, the locating block and the fixing sleeve are arranged in the gun body connecting sleeve, and the fixing sleeve is locked with the fixing sleeve through the set screw; the connecting body is sleeved with the sealing ring and then connected with the screw tooth cavity, and the locking thread head, the cone and the anchor tooth block are sequentially arranged in the screw tooth cavity.
2. The adjustable center joint of the connecting device for precision perforation according to claim 1, wherein: the number of the sealing rings is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320807226.7U CN219281717U (en) | 2023-04-13 | 2023-04-13 | Adjustable middle joint of connecting device for precise perforation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320807226.7U CN219281717U (en) | 2023-04-13 | 2023-04-13 | Adjustable middle joint of connecting device for precise perforation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219281717U true CN219281717U (en) | 2023-06-30 |
Family
ID=86930329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320807226.7U Active CN219281717U (en) | 2023-04-13 | 2023-04-13 | Adjustable middle joint of connecting device for precise perforation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219281717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328843A (en) * | 2023-12-01 | 2024-01-02 | 大庆金祥寓科技有限公司 | Oil pipe conveying type precise secondary perforating device and working method thereof |
| CN117365396A (en) * | 2023-12-05 | 2024-01-09 | 大庆金祥寓科技有限公司 | Cable type precise old well secondary perforation process and new well secondary perforation process |
-
2023
- 2023-04-13 CN CN202320807226.7U patent/CN219281717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328843A (en) * | 2023-12-01 | 2024-01-02 | 大庆金祥寓科技有限公司 | Oil pipe conveying type precise secondary perforating device and working method thereof |
| CN117365396A (en) * | 2023-12-05 | 2024-01-09 | 大庆金祥寓科技有限公司 | Cable type precise old well secondary perforation process and new well secondary perforation process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219281717U (en) | Adjustable middle joint of connecting device for precise perforation | |
| CN112177533B (en) | PDC drill bit for directional drilling | |
| EP1210497B8 (en) | Bit connector | |
| CN212201954U (en) | Device for improving blasting drilling precision | |
| CN217681582U (en) | Ultra-short radius horizontal well high-pressure water jet injection tool | |
| CN111441742A (en) | Soluble bridge plug seat sealing head bag | |
| CN206374042U (en) | Adjustable openings device drill bit | |
| CN104858480A (en) | Embedded type drill bushing and application of embedded type drill bushing mounting tool | |
| GB2026061A (en) | Well tubing coupling system | |
| CN207131336U (en) | A kind of new casing bottom enlarging while drilling device | |
| CN108979520B (en) | Hydraulic pulse impact drilling device | |
| CN221032556U (en) | Adjustable gun tail of accurate perforation | |
| CN214819796U (en) | Dry drilling concrete cutter head convenient to dismantle | |
| CN202970482U (en) | Knife blade mechanism appropriate for hole opener | |
| CN102852478B (en) | Centralizing string and restoring string for horizontal well casing pipe dislocation and restoring process of centralizing string and restoring string | |
| CN110965951A (en) | Large-drift-diameter hydraulic anchor and using method thereof | |
| CN101280665A (en) | Mash gas pumping drilling orifice expanding bit as well as expanding method thereof | |
| CN111594051B (en) | Underground reaming angle regulator | |
| CN220226716U (en) | Shaped charge hole forming tool for geological exploration | |
| CN117345140B (en) | Supporting anchor device for jetting and decoupling same-hole secondary perforation | |
| CN213437353U (en) | Hole center positioning instrument | |
| CN203972926U (en) | The reinforcement of concrete die type expands bed plate tool | |
| CN219548847U (en) | Once-well-descending azimuth perforating device | |
| CN217354256U (en) | Multifunctional rotary drilling tool and rotary drilling rig | |
| CN107476763A (en) | A kind of new casing bottom enlarging while drilling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |