System and method for directional drilling utilizing clutch assembly
First Claim
Patent Images
1. A system for directional drilling within a wellbore, comprising:
- a drill string comprising an upper portion, a lower portion, a bent motor coupled to the lower portion, and a drill bit coupled to bent motor; and
a clutch assembly disposed between the upper and lower portions, the clutch assembly operable to disengage the upper and lower portions of the drill string such that the upper portion may be rotated without rotating the lower portion.
5 Assignments
0 Petitions
Accused Products
Abstract
According to one embodiment of the invention, a system for directional drilling within a wellbore includes a drill string having an upper portion, a lower portion, a bent motor coupled to the lower portion, and a drill bit coupled to bent motor, and a clutch assembly disposed between the upper and lower portions. The clutch assembly is operable to disengage the upper and lower portions of the drill string and allow the upper portion to rotate while the lower portion does not rotate.
-
Citations
27 Claims
-
1. A system for directional drilling within a wellbore, comprising:
-
a drill string comprising an upper portion, a lower portion, a bent motor coupled to the lower portion, and a drill bit coupled to bent motor; and a clutch assembly disposed between the upper and lower portions, the clutch assembly operable to disengage the upper and lower portions of the drill string such that the upper portion may be rotated without rotating the lower portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system for directional drilling within a wellbore, comprising:
- a drill string comprises an upper portion, a lower portion, a bent motor coupled to the lower portion, and a drill bit coupled to bent motor; and
a ratchet assembly disposed between the upper and lower portions, the ratchet assembly operable to rotationally disengage the upper and lower portions of the drill string and allow the upper portion to rotate while the lower portion does not rotate. - View Dependent Claims (13, 14, 15)
- a drill string comprises an upper portion, a lower portion, a bent motor coupled to the lower portion, and a drill bit coupled to bent motor; and
-
16. A method for directional drilling within a wellbore, comprising:
- flowing a fluid through a drill string disposed in a wellbore at a first velocity;
rotating a drill bit within the wellbore;
rotating an upper portion and a lower portion of the drill string in a first rotational direction;
flowing the fluid through the drill string at a second velocity greater than the first velocity, thereby disengaging the upper and lower portions of the drill string such that the upper portion rotates without rotating the lower portion; and
continuing to rotate the drill bit to alter the direction of the wellbore. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
- flowing a fluid through a drill string disposed in a wellbore at a first velocity;
-
24. A method for directional drilling within a wellbore, comprising:
- rotating a drill bit within the wellbore;
rotating an upper portion and a lower portion of the drill string in a first rotational direction;
rotating the upper portion of the drill string in a second rotational direction opposite the first rotational direction, thereby rotationally disengaging the upper and lower portions of the drill string such that the upper portion rotates without rotating the lower portion; and
continuing to rotate the drill bit to alter the direction of the wellbore. - View Dependent Claims (25, 26)
- rotating a drill bit within the wellbore;
-
27. A system for directional drilling within a wellbore, comprising:
-
a drill string defining a fluid passageway, and comprising an upper portion, a lower portion, a bent motor coupled to the lower portion, and a drill bit coupled to the bent motor; and a clutch assembly disposed between the upper and lower portions, the clutch assembly operable to disengage the upper and lower portions of the drill string, in response to fluid flow through the passageway, such that the upper portion may be rotated without the lower portion.
-
Specification