Development and service of drilling fluid

The well with the depth of 5700 m was drilled using pitless drilling technology. Clayless drilling mud Biocar® was used for penetration in the production zone.After the drilling completion in the interval from 5580 m to 5700 m slotted liner was run and cementing of the second section of the production casing was conducted.

Inflow stimulation was performed by lowering of the drilling mud level with the help of nitrogen unit.