Do you know why the drill pipe breaks?

Release time:

2018-05-08

Author:

Source:

A drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the drilling. The purpose of the drill pipe is to carry drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand huge internal and external pressure, distortion, bending and vibration. In the process of oil and gas extraction and refining, drill pipe can be used many times. The common causes of drill pipe fracture are as follows: 1. Trenchless drill pipes have been used for too long, with more surface damage, approaching or exceeding fatigue life. Replace new drill pipe in time. 2, drill pipe body material, thickness does not meet the technical regulations

A drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling equipment. Bottom drill grinding equipment or bottom hole device. The purpose of the drill pipe is to transport drilling mud to the drill bit and Raise, lower or rotate the bottom hole device together with the drill bit. Drill pipe must be able to withstand huge internal external pressure, twisting, bending and vibration. In the process of oil and gas extraction and refining, drill pipe can be more times of use.

The common causes of drill pipe fracture are as follows:

1. The trenchless drill pipe has been used for too long, and has more surface damage, which is close to or exceeds the fatigue life. Replace new drill pipe in time.

2. The material and thickness of the drill pipe body do not meet the requirements of the technical specifications.

3, reaming or long-distance drilling guide hole, the drill suddenly hit a hard object to produce a strong impact. The torque increases suddenly, causing the trenchless drill pipe to break or twist off. The operator is not on Drilling rig should be reasonable control of rotation speed and propulsion, to avoid this kind of situation, drilling, Pressurize and drill forward at a suitable rotation speed.

4. The radius of curvature of the construction hole exceeds the minimum radius of curvature of the drill pipe to control the parameters of the construction hole. Minimum radius of curvature.

5. The surface of the drill pipe body is seriously scratched to avoid using the drill pipe with scars.

6. The torque of the drilling rig is greater than the torque of the drill pipe inclination. Proper drill pipe for the rig.

7. Pair position. Do not form the operation of the drill pipe, but be careful not to "don't" the drill pipe.

8. Release the drill. Under the action of the gravity of the drill pipe and the drilling tool, the friction force of the hole wall and the mud buoyancy are overcome, The process of achieving drill pipe extension is called drilling. The correct drilling sequence is: lower the outer rod in place, The adjacent inner rod starts to extend from the outer rod, from outside to inside, one by one.

The drill pipe is the basic part of the drill string. Its main function is to transmit torque and transport drilling fluid, The borehole is deepened by the gradual lengthening of the drill pipe. Therefore, the drill pipe occupies in the oil drilling very important position.

Key words:

Which part does the drill chuck refer to and what role does it play?

Do you understand the handling and maintenance of drill pipes?

Which part does the drill chuck refer to and what role does it play?

Do you understand the handling and maintenance of drill pipes?

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Hotline:

+86-400-635-9960

Yikuang Douyin

Business License