technology

The world's longest well was drilled in Sakhalin

The length of the well with horizontal completion is 15000 m which currently is a world record. This is a supercomplex well with DDI (Directional drilling index) of 8.0 and 14,129 m stepout. Read more

technology

Ejector well cleanout. Experience and application

Clearing of wells from drilling fluids, sand and other mechanical impurities during their construction and operation is coming into sharp focus. Now two main methods of cleaning wells are widespread: washout and using bailers... Read more