PDC drill bit matching tool

A drill bit and tool technology, which is applied in the field of PDC drill bit supporting tools, can solve the problems of debris clogging with mud balls, dense nozzles, and the use of slender tools, etc., achieving remarkable results and excellent operability.

Active Publication Date: 2021-04-16
SOUTHWEST PETROLEUM UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing tools for removing and installing the nozzle of the drill bit have the following defects when disassembling the nozzle: (1) When the drill bit goes out of the well, it is often accompanied by mud bags, and there are a large amount of dense cuttings inside the nozzle. The cleaning process is very inconvenie

Method used

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  • PDC drill bit matching tool
  • PDC drill bit matching tool
  • PDC drill bit matching tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 2-Figure 4 A PDC drill supporting tool shown includes a connecting column 1, and the two ends of the connecting column 1 are respectively fixedly connected to the nozzle connector 2 and the end 3, and the bottom of the nozzle connector 2 is provided with a hole that matches the water hole of the drill bit. The cross protrusion 4 also includes a through hole, an inner column 5 inserted in the through hole, and the through hole runs through the terminal 3, the connecting column 1, the nozzle connection head 2, and the cross protrusion 4 in sequence, and the inner column 5 and the The through holes are screwed together; the outer wall of the inner column 5 close to the direction where the cross protrusion 4 is located has several annular uniform grooves 6, the axes of the grooves 6 are parallel to the axis of the inner column 5, and the grooves 6 The first positioning block 7 and the second positioning block 8 are respectively fixed at the upper and lower e...

Embodiment 2

[0044] A PDC drill supporting tool, on the basis of Embodiment 1, the inner column 5 includes a screw section and a polished section distributed up and down, the screw section and the end 3 are threaded, and the groove 6 is arranged on the On the polished rod section. The top of the inner column 5 is fixed with a connection knob 13 .

[0045] Preferably, the length of the screw section can be set according to the stroke end point of the inner column moving up and down, so as to limit the movement range of the inner column.

Embodiment 3

[0047] A kind of PDC drill supporting tool, on the basis of any one of the above-mentioned embodiments, such as Figure 5 and Figure 6 As shown, it also includes a force application rod 14 passing through the terminal 3 , the force application rod 14 is fixedly connected with the terminal 3 , and the through hole passes through the force application rod 14 . It also includes a heavy hammer 15 movably sleeved outside the connecting column 1, the heavy hammer 15 is located between the nozzle connection head 2 and the end 3; when the heavy hammer 15 goes down to the low position of the stroke, it is connected with the nozzle Head 2 contacts. A second compression spring 16 is connected between the weight member 15 and the end 3 , and the second compression spring 16 is used to push the weight member 15 to move toward the nozzle connecting head 2 . It also includes a lifting mechanism for lifting the heavy hammer 15 , and the lifting mechanism moves the heavy hammer 15 to the di...

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PUM

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Abstract

The invention discloses a PDC drill bit matching tool. The PDC drill bit matching tool is characterized in that the two ends of a connecting column are fixedly connected with a nozzle connector and an end respectively, a cross-shaped protrusion matched with a drill bit water hole is arranged at the bottom of the nozzle connector, and an inner column is in threaded fit with a through hole; a plurality of annularly and evenly distributed grooves are formed in the outer wall of the end, close to the cross-shaped protrusion, of the inner column, the axes of the grooves are parallel to the axis of the inner column, first positioning blocks and second positioning blocks are fixed to the two ends of each groove correspondingly, sliding blocks are in sliding fit in each groove, and a first compressed spring is connected between each sliding block and the corresponding first positioning block; the ends, away from second scraping rods, of first scraping rods are hinged to the sliding blocks, and the ends, away from the first scraping rods, of the second scraping rods are hinged to the second positioning blocks; and the first scraping rods and the second scraping rods can be accommodated in the grooves. The PDC drill bit matching tool is used for solving the problems faced by disassembling a PDC drill bit nozzle taken out of a well on a drilling operation site, the purposes that the PDC drill bit nozzle taken out of the well can be disassembled more conveniently, other tools do not need to be used, and the operation difficulty of workers on site is lowered are achieved.

Description

technical field [0001] The invention relates to the field of drill bits, in particular to a PDC drill matching tool. Background technique [0002] As one of the important parts of the drill bit, the water hole of the drill bit has the function of cleaning the drill bit and the bottom of the well, and the installation of the nozzle through the water hole of the drill bit plays a role in hydraulic rock breaking, and can generate a balanced pressure distribution on the rock surface. The nozzle of the conventional drill bit It is cylindrical. [0003] PDC bit, also known as diamond bit, is made of polycrystalline diamond (thin disc shape) as a small cutting block, mounted or sintered on the bit body. With the popularization and application of PDC bits and the improvement of PDC cutter technology, fixed cutter PDC bits have gradually replaced roller cone bits in various formations. The nozzle of the PDC drill bit has four notches at the bottom, which needs to be installed on si...

Claims

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Application Information

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IPC IPC(8): B25B27/02E21B12/06
Inventor 胡津李大伟张彦刘浩孙勇张杰
Owner SOUTHWEST PETROLEUM UNIV
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