CN202249769U

CN202249769U - Drill bit for petroleum exploration

Info

Publication number: CN202249769U
Application number: CN2011203937376U
Authority: CN
Inventors: 张绍臣; 韩刚; 于生云
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-17
Filing date: 2011-10-17
Publication date: 2012-05-30
Anticipated expiration: 2021-10-17

Abstract

The utility model provides a drill bit for petroleum exploration. The drill bit consists of a first-stage drill bit, a second-stage drill bit, a third-stage drill bit, a connector, a connecting rod and hard alloy teeth, wherein the first-stage drill bit is connected with the connector; the first-stage drill bit, the second-stage drill bit and the third-stage drill bit are fixedly connected with the connecting rod respectively; and the hard alloy teeth are arranged on the second-stage drill bit and the third-stage drill bit. The drill bit for petroleum exploration has a simple structure and reasonable design, and is favorable for increasing the stability when the drill bit works, prolonging the service life of the drill bit, and reducing the well drilling cost.

Description

Drill bit is used in a kind of oil exploration

Technical field

The utility model relates to petroleum exploration field, is specifically related to a kind of oil exploration and uses drill bit.

Background technology

Along with Oilfield developing, technology constantly develops, and drill bit is from the rock bit to the diamond compact bit etc., and is of a great variety, to adapt to the needs of different drilling wells.And existing diamond compact bit creeping into of incompatibility hard formation also, be only applicable to soft in hard homogeneous formation, when boring hardpan; Rate of penetration and drilling depth are low; Stability of bit is poor, and lateral balance power is poor, the injury that drill bit is subject to whirling motion and circles round; Make the lost of life of drill bit, be unfavorable for applying.

The utility model content

In order to address the above problem, the utility model provides a kind of oil exploration to use drill bit.

The utility model is achieved in that a kind of oil exploration uses drill bit; Form by first order drill bit, second level drill bit, third level drill bit, joint, connecting rod and hard-metal insert; First order drill bit is connected with joint; First order drill bit, second level drill bit and third level drill bit all are fixedly connected with connecting rod, and second level drill bit and third level drill bit are provided with hard-metal insert.

Simple in structure, reasonable in design, the stability when having increased drill bit work of the utility model has improved drilling life of bit, has reduced drilling cost.

Description of drawings

Accompanying drawing 1 is the structural representation of the utility model; Wherein: 1, first order drill bit, 2, second level drill bit, 3, third level drill bit, 4, joint, 5, connecting rod, 6, hard-metal insert.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1; Drill bit is used in a kind of oil exploration; Form by first order drill bit, second level drill bit, third level drill bit, joint, connecting rod and hard-metal insert; First order drill bit is connected with joint, and first order drill bit, second level drill bit and third level drill bit all are fixedly connected with connecting rod, and second level drill bit and third level drill bit are provided with hard-metal insert.

Claims

1. drill bit is used in an oil exploration; Form by first order drill bit, second level drill bit, third level drill bit, joint, connecting rod and hard-metal insert; It is characterized in that: first order drill bit is connected with joint; First order drill bit, second level drill bit and third level drill bit all are fixedly connected with connecting rod, and second level drill bit and third level drill bit are provided with hard-metal insert.