Transportable Drilling Rig F 250 – DEC – T
The F 250 – DEC – T mobile drilling rig is intended to be used for drilling oil and gaswells down to a depth of 3,800 m (12,467 ft) to 4,500 m (14,763 ft) by making use of4.½ in or 5 in drill pipes and for a hook load limit of 250 mton (560,000 lbs).The said rig is equipped with d.c. electric motors that are supplied from an electricpower station and operated by a SCR type control system.
The F 250 – DEC – T mobile drilling rig uses the conventional drilling methodthat implies drilling either by the rotary table or by a down hole motor; it performsthe following drilling jobs:
- drilling of well holes;
- handling of casing and drill strings;
- removal of any troubles and damages, which might occur at the well site;
- conditioning, cleaning and circulation of the drilling mud;
- performance of the auxiliary jobs afferent to the well drilling and casing processes.