Drilling in extreme environments Extreme oilfield drilling refers to oil drilling operations under harsh environmental conditions. These harsh environments include deep sea, high temperature, low temperature, high pressure, high sulfur content, etc. Under these special conditions, drilling operations face many challenges that require special equipment and technologies to ensure smooth operation. This article will describe […]

The process of catapulting through casings and cement rings with special perforation to generate holes in the rock body and establish a communication channel between the formation and the wellbore to promote the reservoir fluid into the wellbore is called perforation. The purpose of perforation After the cementing is completed, there is a layer of […]

Working Principle of Screw Pump The main working parts of a progressive cavity pump consist of a liner (stator) with a double-ended helical cavity and a single-ended eccentric screw (rotor) that engages with it in the stator cavity. When the input shaft drives the rotor around the center of the stator through the universal joint […]