CASE

Before the drill pipe is used in the well, the internal threaded joint should be neatly placed on the theme activity drill pipe rack 0.3M above the road surface and with sufficient

According to the torque, push and pull force of the drilling rig, and the minimum allowable angle, select the drill pipe suitable for the model and specification.

Check whether the solenoid valve 2 has been closed tightly (remove the motor to solve the two oil pipes leading to the solenoid valve 2, and plug the two oil holes at the motor end

Braking behind. Often the challenge is a simple statement, possibly a common failure caused by lag at the braking level.

Pay attention to avoid holding any part of the drill pipe body with a vise, so as to avoid the rod body being pinched by slips, and the Luohe drill pipe will reduce the service lif

When using a new drill pipe, it should be confirmed that the thread of the front section of the drill bit (protecting the shaft head) is also close to the new one.

The kelly consists of upper and lower joints and pipe body parts. The pipe body has two structures of square or hexagonal (most of the oil drillings are of square structure);

When drilling, the kelly is matched with the compensation center and the rotary table compensation center, and the ground rotation torque is transmitted to the drill pipe.

The drill pipe is made of seamless steel pipe, and the wall thickness is generally 9 to 11mm;

Drill pipe is the basic component of drill string. Its main function is to transmit torque and transport drilling fluid, and the wellbore is continuously deepened by the gradual le

The weighted drill pipe is similar to the oil drill pipe, and it is also a hollow steel column with a length of about 10 meters.

According to the regulations of the American Petroleum Institute (API), drill pipes are divided into three categories by length (L): the first category: 5.486-6.706m (18-22ft);