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Drill bit and drilling equipment

A technology of drill bits and equipment, applied in drilling equipment, drill bits, earth-moving drilling and other directions, can solve problems such as affecting the normal production of oil wells, and achieve the effect of good cleaning effect

Pending Publication Date: 2021-03-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a drill bit and drilling equipment to solve the technical problem that the drilling tools in the prior art affect the normal production of oil wells

Method used

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  • Drill bit and drilling equipment
  • Drill bit and drilling equipment
  • Drill bit and drilling equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] figure 1For the sectional view of the drill provided in this embodiment, figure 2 for figure 1 Middle A-A sectional view, image 3 A schematic diagram of the first bottom surface structure of the drill provided in this embodiment, Figure 4 A schematic diagram of the second bottom surface structure of the drill provided in this embodiment, combined below Figure 1~4 A specific implementation of the present example will be described in detail.

[0055] This embodiment provides a drill bit, including a drill body 100, a swirl nozzle 200, and a plurality of radial nozzles 300. A main flow channel 101 for fluid flow is formed in the drill body 100, and a plurality of radial nozzles 300 are formed along the Circumferentially arranged on the outer edge of the drill body 100, the radial nozzle 300 communicates with the main channel 101, and multiple radial nozzles 300 spray along multiple tangential directions of the same circle, and the swirl nozzle 200 communicates with...

Embodiment 2

[0072] Figure 5 A cross-sectional view of the installation head of the drilling equipment provided in this embodiment, Figure 6 It is a schematic structural diagram of the sliding sleeve switch of the drilling equipment provided in this embodiment, Figure 7 for Figure 6 Cutaway view of the slide switch shown, Figure 8 The structural representation of the drilling equipment provided for this embodiment, below in conjunction with Figure 5-8 The implementation of this example will be specifically described.

[0073] This embodiment provides a kind of drilling equipment, including installation head 400, oil pipe 700 and any drill bit in the above-mentioned embodiments, the drill bit is detachably connected to the oil pipe 700 through the installation head 400, and the oil pipe 700 is connected to the main flow of the drill bit through the installation head 400 Road 101 connects.

[0074] Specifically, in one example, such as Figure 5 As shown, the mounting head 400 in...

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Abstract

The invention provides a drill bit and drilling equipment, and belongs to the technical field of oil and gas exploitation. The drill bit comprises a drill bit main body, a swirl nozzle and a pluralityof radial nozzles; a main flow channel for liquid to flow is formed in the drill bit main body; the plurality of radial nozzles are arranged on the outer edge of the drill bit main body in the circumferential direction of the drill bit main body, are in communication with the main flow channel, and are used for spraying in a plurality of tangential directions of the same circle; and the swirl nozzle is in communication with the main flow channel and eccentrically arranged at the bottom of the drill bit main body. The drilling equipment comprises any one of the drill bit, a mounting head and an oil pipe; the drill bit is detachably connected with the oil pipe through the mounting head; and the oil pipe is in communication with the main flow channel of the drill bit through the mounting head. According to the drill bit, all blockages in a casing pipe can be cleaned up, the inner diameter of the casing pipe cannot be reduced, and therefore normal production of the oil well can be guaranteed.

Description

technical field [0001] The invention relates to a drill bit and drilling equipment, belonging to the technical field of oil and gas exploitation. Background technique [0002] After the construction of the oil well adjustment layer, water plugging and resin sand consolidation, cement ash plugs and sand plugs will be produced in the casing of the oil well, forming a lime-sand consolidation layer. Clean up to get the well back to normal as quickly as possible. [0003] Existing drilling tools include a drill rod body and a drill bit. The drill bit is fixed at one end of the drill rod body. The drill bit includes a drill bit body and cutting teeth. The cutting teeth are distributed along the circumference of the drill bit body and extend radially along the drill bit body. In the process of cleaning the lime-sand consolidation layer, the main body of the drill pipe drives the drill bit to rotate, and the cutting teeth on the drill bit cut and break the lime-sand consolidation l...

Claims

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Application Information

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IPC IPC(8): E21B10/60E21B37/00
CPCE21B10/60E21B37/00
Inventor 冯光陈军于俊宇鲁明肖娟王鹏飞任永苍汪矿平袁建波王磊阎逸超
Owner PETROCHINA CO LTD
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