Rod coupling is connecting two sucker rods

Rod coupling the name suggests is a coupling connecting two sucker rods. It features: high-quality carbon structural steel as raw material made of. Has not rusty, difficult to corrosion characteristics. Connection is secure, easy construction. Threaded rod coupling ends can be combined as desired rod of different diameters, according to the structure characteristics into common coupling, reducer couplings and special couplings.

Casing, tubing and drill Pipe for oil drilling essential to the process pipe.

Casing, tubing and drill Pipe for oil drilling and production sectors essential to the process pipe. Oil casing is mainly used to support the rear of the wall during drilling and completion, and after completion to ensure the normal operation of the entire drilling process wells. The main pipeline pumping oil at the bottom of the oil and gas transport to the surface.

Non-magnetic drill collars mechanical properties

Non-magnetic drill collars is to use a low-carbon high-chromium-manganese alloy steel, which is the result of a rigorous refining and chemical composition ratio by forging achieve its mechanical properties, good low-permeability, high strength mechanical properties, excellent resistance to intergranular corrosion cracking resistance and excellent abrasion resistance.

Spiral drill collar can be prevented Downhole drilling tools during drilling differential pressure block, spiral grooves may allow mud flow freely around the drill collar to balance the pressure to prevent the formation of block, thereby effectively preventing differential sticking occurred. You can reduce the contact area with the drilling shaft, and thus the possibility of blocking the differential pressure can be effectively reduced. The reason why the spiral drill collars are widely used because of its own characteristics of the decision, this particular spiral drill collars to reduce the contact area between the wall and the tube, thereby avoiding "sticking" phenomenon of the drill string.