CN210370528U - Drilling safety joint - Google Patents
Drilling safety joint Download PDFInfo
- Publication number
- CN210370528U CN210370528U CN201920791455.8U CN201920791455U CN210370528U CN 210370528 U CN210370528 U CN 210370528U CN 201920791455 U CN201920791455 U CN 201920791455U CN 210370528 U CN210370528 U CN 210370528U
- Authority
- CN
- China
- Prior art keywords
- external
- joint
- top connection
- pullover
- safety joint
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims description 17
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a probing safety joint, including external pullover, top connection and lower clutch, the top connection sets up the upper portion at the lower clutch, is provided with the sealing washer between top connection and lower clutch, and the surface of top connection is provided with the external screw thread, and the inboard of external pullover also is provided with the screw thread, and the bottom of external pullover is provided with the breach, is provided with the arch of agreeing with the breach at the top of sealing washer, and the surface of lower clutch also is provided with the external screw thread, reduces the safe probe of fracture probability and the butt joint probe position of being convenient for, simple structure, the simple operation.
Description
Technical Field
The utility model relates to a drilling tool safety device technical field especially relates to a drilling safety joint.
Background
The safety joint is a safety tool which is connected to a pipe column in a well and is easy to trip and buckle. The device is arranged at the position where the pipe column needs to be disconnected, can transmit torque and bear various composite stresses together with the pipe column, and can complete tripping and buckling of the operation pipe column through well mouth operation when a fault occurs in the well, thereby providing a guarantee tool for preventing and relieving underground accidents. In drilling operation, the drilling tool is easy to break and block, so that the drilling tool falls into the well or is blocked in the well, and in order to avoid the phenomenon, a safety joint is usually connected to the lower part of the drilling tool, and then a fishing tool is connected to the lower part of the safety joint. However, the existing safety joint has high fishing difficulty and low success rate when the underground drilling tool is not centered, and the position of the joint cannot be correctly calibrated, so that a safety probe which reduces the fracture probability and is convenient for butting the position of the probe is needed.
SUMMERY OF THE UTILITY MODEL
For solving prior art's not enough, the utility model aims at providing a reduce fracture probability and be convenient for dock the safety probe of probe position, simple structure, simple operation.
The utility model provides a probing safety joint, its characterized in that, includes external pullover, top connection and lower clutch, the top connection sets up the upper portion at the lower clutch be provided with the sealing washer between top connection and the lower clutch, the surface of top connection is provided with the external screw thread, the inboard of external pullover also is provided with the screw thread, the bottom of external pullover is provided with the breach, the top of top connection sealing washer be provided with the arch that the breach agrees with, the surface of lower clutch also is provided with the external screw thread.
Preferably, the external thread on the surface of the upper joint is matched with the thread on the inner side of the external sleeve head
Further preferably, the cross-sectional shape of the upper joint is a regular trapezoid.
Further preferably, the cross-sectional shape of the lower joint is an inverted trapezoid.
Further preferably, the notch is connected with the protrusion at 90 degrees.
Further preferably, a magnetic core is arranged inside the sealing ring, so that magnetic force can be generated for attraction.
The utility model discloses an useful part lies in: through being provided with the external pullover of breach and protruding combination use, when the screw thread rotated to the breach position, stop by the arch, reduced and connect from other positions and produced cracked probability, breach and bellied combination make to connect a whole simultaneously, be convenient for connect the use at the probing in-process, adopted the magnetic core simultaneously, when connecting the fracture and being difficult to salvage, through the magnetic influence, produce the absorption to external pullover, improved the efficiency of visiting the joint.
Drawings
FIG. 1 is a schematic structural view of the external sleeve of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
The reference numerals in the drawings are explained below: 1 is an external sleeve head, 2 is an upper joint, 3 is a sealing ring and 4 is a lower joint.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-2, the present embodiment is a drilling safety joint, which is characterized in that the drilling safety joint comprises an external casing joint 1, an upper joint 2 and a lower joint 4, the upper joint 2 is disposed on the upper portion of the lower joint 4, a sealing ring 3 is disposed between the upper joint 2 and the lower joint 4, an external thread is disposed on the surface of the upper joint 2, a thread is disposed on the inner side of the external casing joint 1, a notch is disposed at the bottom of the external casing joint 1, a protrusion engaged with the notch is disposed at the top of the sealing ring 3, and an external thread is disposed on the surface of the lower joint 4.
In the embodiment, the external thread on the surface of the upper joint 2 is matched with the thread on the inner side of the external sleeve head
The cross-sectional shape of the upper joint 2 in this embodiment is a regular trapezoid.
The cross-sectional shape of the lower joint 4 in this embodiment is an inverted trapezoid.
In this embodiment the notch is connected to the protrusion at 90 °.
The inside of sealing washer 3 is provided with the magnetic core in this embodiment, is convenient for produce magnetic force and attracts.
The utility model discloses an useful part lies in: through being provided with the external pullover of breach and protruding combination use, when the screw thread rotated to the breach position, stop by the arch, reduced and connect from other positions and produced cracked probability, breach and bellied combination make to connect a whole simultaneously, be convenient for connect the use at the probing in-process, adopted the magnetic core simultaneously, when connecting the fracture and being difficult to salvage, through the magnetic influence, produce the absorption to external pullover, improved the efficiency of visiting the joint.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (7)
1. The utility model provides a probing safety joint, its characterized in that, includes external pullover, top connection and lower clutch, the top connection sets up the upper portion at the lower clutch be provided with the sealing washer between top connection and the lower clutch, the surface of top connection is provided with the external screw thread, the inboard of external pullover also is provided with the screw thread, the bottom of external pullover is provided with the breach, the top of top connection sealing washer be provided with the arch that the breach agrees with, the surface of lower clutch also is provided with the external screw thread.
2. A safety joint for drilling according to claim 1, wherein the external thread of the upper joint surface is adapted to engage with a thread on the inside of an external socket.
3. A drilling safety joint according to claim 1, wherein the cross-sectional shape of the upper joint is a regular trapezoid.
4. A drilling safety joint according to claim 1, wherein the cross-sectional shape of the lower joint is an inverted trapezoid.
5. A drilling safety joint according to claim 1, wherein the notch is connected to the projection at 90 °.
6. A drilling safety joint according to claim 1, wherein the upper joint has a lower thread density than the lower joint.
7. A drilling safety joint according to claim 1, wherein the inside of the sealing ring is provided with a magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920791455.8U CN210370528U (en) | 2019-05-29 | 2019-05-29 | Drilling safety joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920791455.8U CN210370528U (en) | 2019-05-29 | 2019-05-29 | Drilling safety joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210370528U true CN210370528U (en) | 2020-04-21 |
Family
ID=70262224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920791455.8U Expired - Fee Related CN210370528U (en) | 2019-05-29 | 2019-05-29 | Drilling safety joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210370528U (en) |
-
2019
- 2019-05-29 CN CN201920791455.8U patent/CN210370528U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |