Дочірня Компанія "Укргазвидобування" Український Науково-Дослідний Інститут Природних Газів /Філія/
Дочерняя Компания "Укргазодобыча" Украинский Научно-Исследовательский Институт Природных Газов (Филиал)
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Priority to UA2001020821ApriorityCriticalpatent/UA46975C2/en
Publication of UA46975C2publicationCriticalpatent/UA46975C2/en
Method for the process of rotary drilling control comprises of feeding the washing liquid to the drilling pipes with the rock destruction tool screwed-on, creating axial loading on the bit, bringing its rotor into rotation. Controlling of the drill bit rotation frequency is carried out to the value taking into account the bit structure, the lower part of the drilling string structure, the rotor drive installed power, energy consumption in the process of the rock destruction, the well inclination angle, the washing liquid parameters, physical-mechanical properties of rock.
UA2001020821A2001-02-062001-02-06
METHOD OF CONTROLLING RATE OF ROTARY DRILLING
UA46975C2
(en)
borehole system with a borehole and wired drill pipe carrying electrical power from the surface, drill string for use in drilling a wellbore and method for drilling a borehole well with a drill string