Shell and Auger Casing, Rotary Casing
DRILLWELL Casing is manufactured from cold drawn seamless steel tubing. The dimensions and physical properties are in accordance with ISO 3551-1.1992 and BS4019 Pt.3. 1992. The most stringent quality control measures are employed during the whole manufacturing process. Straightness is controlled to better than 1 : 1200.
The W Series Casing is flush jointed and has an integral pin and box thread and is flush on the outside and the inside.
The X Series Casing is flush coupled and has a box thread each end and is connected by means of pin to pin couplings. Each length of casing is supplied with one coupling.
Each length of casing is supplied with one coupling. All casing is normally supplied in length increments of 3 & 1.5 metres or 10ft. & 5ft. Any other length increment may be supplied by request as can left-hand screwed casing.