An oil well usually has a casing string or a liner installed to hang the weight and isolate the pressure in advance of the reservoir penetration and oil or gas outflow.More than one as the casing string may required in s…

Components are the mud pump cylinder liner, the top sleeve, the cylinder head, the pull rod, the piston and pressure plate, the leather bowl, the piston seat and rod, the plunger rod, inlet and outlet valves and seats, t…

Mud pump is mainly used for geological drilling, geological engineering construction and foundation treatment of low and medium pressure grouting pump, etc. Mud pump is a machine that sends mud or water to the borehole d…

Thepolished bore receptacle liner hangeris divided into two types: slip type and mandrel type. The slip type bush hanger is also divided into WD type slip hanger, cg-21 type slip hanger, cg-22 type slip hanger and cg-29 …

Since the use of triple helix stabilizers in China's oilfields and gas fields in 1983, their structures have basically remained unchanged. Most of the existing three screw stabilizers use a certain number of cemente…

The pump is mainly composed of four parts: barrel, plunger, fixed valve and traveling valve. The pump barrel is a cylinder liner, which is equipped with a plunger with a traveling valve. The plunger and the pump barrel f…

Spear fishing tools can be divided into three categories according to the structural characteristics of the tools: non retractable slide spear, coupling spear and retractable spear. Among them, the slide block bailing sp…

Non-magnetic drill collarThe structure ofnon mag drill collarsare as same as that of ordinary drill collars, but their chemical composition and mechanical features are different from ordinary drill collars. Non-magnetic …

Many enterprise users report that the maintenance and management of mud pumps are not systematical and perfect, therefore, how can we perform scientific maintenance of mud pumps? In fact, during the operation of the mud …

The breakdown of the choke valve and the troubleshooting methods:1. The malfunction of the flow regulation:The reason for the malfunction of the flow regulation could be the failure of the seal, the failure of the spring…

The characteristics of aluminum drill pipe are as follows:Significantly reduce hook loadThe density of aluminum drill pipe in air is less than 1/2 of that of steel drill pipe. In drilling, aluminum drill pipe shows good …