Intelligent wellbore propagation system
AssigneeSchlumberger Technology Corporation
InventorGEOFFREY C. DOWNTON
Life of this patent
Estimating the term…
Abstract
A technique utilizes a monolithic wellbore propagation system to facilitate the drilling of deviated wellbores. A steerable drilling assembly is formed with a monolithic structure having both a bit body section and a steering body section. The steering body section comprises a cavity sized to receive a control system within the monolithic structure. Addition of the control system enables operational control over the steerable drilling assembly to facilitate formation of a desired, deviated wellbore section.
Claims23
A system for drilling a deviated wellbore, comprising:
- a monolithic structure having a bit body section and a steering body section;
- a plurality of cutters mounted on the bit body section;
- plurality of steering actuators mounted on the bit body section;
- and
- a control system mounted within the steering body section to control the plurality of steering actuators and thus the direction of drilling when forming the deviated wellbore.
A method of forming a steerable drilling assembly for drilling a wellbore, comprising:
- forming a steerable drilling assembly with a monolithic structure having a bit body section and a steering body section;
- placing only one field breakable connection on the monolithic structure and positioning the one field breakable connection at an uphole end of the monolithic structure;
- mounting cutters on the monolithic structure;
- and
- mounting steering actuators on the monolithic structure.
A system for drilling a deviated wellbore, comprising:
- a rotary steerable drilling assembly formed with a monolithic structure having a bit body section and a steering body section, the steering body section having a cavity sized to receive a control system.
Dependencies are inferred from the claim text.