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Internal spiral nozzle with diversion trench

An internal helix and diversion groove technology, used in construction and other directions, can solve the problems of sand carrying, cooling, poor lubrication, etc., and achieve the effect of good tooth protection, increased fluid velocity, and prevention of wire withdrawal and tripping.

Inactive Publication Date: 2011-10-12
刘展
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In oil exploration and oil field drilling, since the LBS sapphire helical complex is used to fully drill the drill bit, it is found that when the straight hole nozzle is installed, there is high pressure mud and water ejected from the nozzle when it hits the rock formation. It has become scattered and has no destructive power to hard rock formations, and the mud ejected during drilling plays a role in carrying sand, cooling and lubricating at the bottom of the well, which is not a good defect.

Method used

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  • Internal spiral nozzle with diversion trench
  • Internal spiral nozzle with diversion trench
  • Internal spiral nozzle with diversion trench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a schematic structural diagram of the main view of the inner spiral nozzle with two spiral diversion grooves 2;

[0033] figure 2 for figure 1 Schematic diagram of the top view structure.

[0034] One end surface of the inner spiral nozzle body 1 is provided with a wrench fastening groove 6 .

[0035] The inner spiral nozzle body is a hard alloy inner spiral nozzle.

[0036] Figure 9 Shown is a schematic diagram of the main view of the drill bit, and multiple horizontal inner spiral nozzles are installed on the side of the drill bit.

[0037] Figure 10 for Figure 9 Looking up at the schematic diagram of the structure, internal spiral nozzles 1 of different sizes are installed in the spiral groove on the bottom surface of the drill bit.

[0038] Figure 11 for Figure 9 Another structural schematic diagram of looking up, the drill bit bottom surface spiral groove is equipped with internal spiral nozzles 1 with different sizes. This nozzle dia...

Embodiment 2

[0040] image 3 It is a schematic structural diagram of the front view of the inner spiral nozzle with three spiral guide grooves 2 .

[0041] Figure 4 for image 3 Schematic diagram of the top view structure.

[0042] One end surface of the inner spiral nozzle body 1 is provided with a wrench fastening groove 6 .

[0043] The inner spiral nozzle body is a ceramic inner spiral nozzle, and the arrangement of the nozzles is the same as that in Embodiment 1.

Embodiment 3

[0045] Figure 5 It is a schematic structural diagram of the front view of the inner spiral nozzle with four spiral guide grooves 2 .

[0046] Figure 6 for Figure 5 Schematic diagram of the top view structure.

[0047] One end surface of the inner spiral nozzle body 1 is provided with a wrench fastening groove 6 .

[0048] The inner spiral nozzle body is a hard alloy or ceramic inner spiral nozzle, and the arrangement of the nozzles is the same as that in Embodiment 1.

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Abstract

The invention discloses an internal spiral nozzle with a diversion trench, and the internal spiral nozzle is installed on a bit. At least more than two spiral diversion trenches are arranged on an internal spiral nozzle body, one end of the internal spiral nozzle body is connected with the bit through an external thread, the other end of the internal spiral nozzle body is inserted in the inner cavity of a bush, a spacing ring is arranged on the middle part of the excircle of the bush, and a spanner fastening groove is arranged on one end surface of the internal spiral nozzle body. The internal spiral nozzle is a general and replaceable hard alloy or ceramic internal spiral diversion trench nozzle for the bit, the internal spiral nozzle has the advantages that the cooling and lubricating effects are good, the damage of a bit clad sheet and gauge teeth can be reduced, the phenomenon that a rubber dough packs the bit is solved, the rotating bit nozzle can be prevented from wire-back stripping during a shaking process, the tooth protecting effect is good, the bit clad sheet and the gauge teeth can be prevented from being impacted by gravel, the fluid speed is improved, the sand carrying capacity is good, the pumping pressure of ground facilities is relieved. The internal spiral nozzle provided by the invention can be widely used for installing whole-section bits applied to the oil industry, the geologic prospecting industry, the coal mine industry, the railway industry, the underground engineering industry, the national defense industry and the like.

Description

technical field [0001] The invention relates to a high-pressure water nozzle on a deep well drill bit, in particular to an inner spiral nozzle with a diversion groove. Background technique [0002] There is a universal and replaceable hard alloy straight hole nozzle on the existing PDC full-face drilling bits used in oil exploration, oilfield drilling, and coal mining. Equipped with it, its function: it is mainly used to jet the high-pressure mud and clear water in the drilling, and the installation position: the PDC diamond full-section drilling bit is mainly concentrated on the top of the bit and the concave surface of the road wing. In oil exploration and oil field drilling, since the LBS sapphire helical complex is used to fully drill the drill bit, it is found that when the straight hole nozzle is installed, there is high pressure mud and water ejected from the nozzle when it hits the rock formation. It has become scattered and has no destructive power to hard rock for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B10/61
Inventor 刘展李军巴德军张粉宁刘雅蕾
Owner 刘展
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