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US 7,093,675 B2Granted
Drilling method
AssigneeWeatherford/Lamb, Inc.
InventorGiancarlo Pia
Life of this patent
Estimating the term…
Abstract
A method of drilling and lining a bore in an earth formation comprises providing a tubular outer elongate member and an inner elongate member located within the outer member. At least one of the members is spoolable. A drill bit is mounted to one of the members and a bore is drilled by advancing the drill bit through the earth formation and advancing the members through the bore.
Claims108
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member attached to an inner elongate member, the inner elongated member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- and
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore.
2 more elements
Apparatus for drilling and lining a bore in an earth formation, the apparatus comprising:
- a tubular outer elongate member and an inner elongate member located within and selectively attached to the outer member for movement in the bore;
- an annulus defined by the outer member and the inner member, wherein the annulus is adapted for fluid flow;
- and
- a drill bit mounted to one of the members.
1 more element
A method for lining a wellbore, comprising:
- providing a drilling assembly comprising an earth removal member, a tubular assembly, and a wellbore lining conduit, wherein the drilling assembly includes a first fluid flow path and a second fluid flow path and the tubular assembly is connected to and at least partially disposed in the wellbore lining conduit;
- advancing the drilling assembly into the earth;
- flowing a fluid through the first fluid flow path and returning at least a portion of the fluid through the second fluid flow path;
- and
- leaving the wellbore lining conduit at a location within the wellbore.
2 more elements
A method of forming a wellbore using a casing, comprising:
- providing the casing with a drill bit disposed at a lower portion thereof;
- forming the wellbore using the casing, the casing being apportioned into at least two fluid flow paths;
- flowing a fluid downward in the casing;
- and
- flowing at least a portion of the fluid upward inside the casing.
2 more elements
A method of drilling and lining a bore in an earth formation, the method comprising the steps:
- providing a tubular outer elongate member and an inner elongate member located within the outer member, at least one of the members being spoolable;
- mounting a drill bit to one of the members;
- drilling the bore by advancing the drill bit through the earth formation and advancing the members through the bore;
- and
- providing a downhole tractor and utilising the tractor to apply weight to the bit or to pull the members through the bore.
2 more elements
A method of drilling and lining a bore in an earth formation, the method comprising the steps:
- providing a tubular outer elongate member and an inner elongate member located within the outer member, at least one of the members being spoolable;
- mounting a drill bit to one of the members;
- providing a sealing arrangement inside the inner member;
- pumping the sealing arrangement down inside the inner member;
- and
- drilling the bore by advancing the drill bit through the earth formation and advancing the members through the bore.
3 more elements
Apparatus for drilling and lining a bore in an earth formation, the apparatus comprising:
- a tubular outer elongate member and an inner elongate member located within and coupled the outer member, at least one of the members being spoolable;
- and a drill bit mounted to one of the members, wherein the inner and outer members are coaxial and spacers are provided between the members.
Apparatus for drilling and lining a bore in an earth formation, the apparatus comprising:
- a tubular outer elongate member and an inner elongate member located within and coupled the outer member, at least one of the members being spoolable;
- a drill bit mounted to one of the members;
- and
- a retractable downhole tractor.
1 more element
Apparatus for drilling and lining a bore in an earth formation, the apparatus comprising:
- a tubular outer elongate member and an inner elongate member located within and coupled the outer member, at least one of the members being spoolable;
- and a drill bit mounted to one of the members, wherein at least one of the members comprises signal conductors.
Apparatus for drilling and lining a bore in an earth formation, the apparatus comprising:
- a tubular outer elongate member and an inner elongate member located within and coupled the outer member, at least one of the members being spoolable;
- and a drill bit mounted to one of the members, the outer member comprises a pressure containment layer.
Apparatus for drilling and lining a bore in an earth formation, the apparatus comprising:
- a tubular outer elongate member and an inner elongate member located within and coupled the outer member, at least one of the members being spoolable;
- and a drill bit mounted to one of the members, wherein the outer member comprises an inner low friction liner or coating, to facilitate withdrawal of the inner member.
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- retrieving at least one of the members using an injector head and lubricator.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- expanding the outer member.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing a drilling fluid is through a channel defined by an outer annulus between the outer member and the bore wall;
- flowing the drilling fluid through an inner annulus between the inner member and the outer member;
- and
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore.
3 more elements
A method of drilling a bare in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing a drilling fluid is through a channel defined by the inner member;
- returning the drilling fluid through an inner annulus between the inner member and the outer member;
- and
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing a drilling fluid through an inner annulus between the inner member and the outer member, wherein the fluid serves as a medium for transmission of pressure pulse signals from a measurement-while-drilling (MWD) apparatus to surface;
- and
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore.
2 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing a drilling fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- pumping a gas into the bore during drilling.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- closing a channel at least partially defined by one or more of the members.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one at the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- and
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- expanding the outer member to a larger diameter.
4 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- providing a sealing arrangement between the inner and outer members.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- providing a sealing arrangement between the outer member and bore wall.
3 more elements
A method of drilling a bore in an earth formation, the method comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- providing a sealing arrangement inside the inner member.
3 more elements
A method for lining a wellbore, comprising:
- providing a drilling assembly comprising an earth removal member and a wellbore lining conduit, wherein the drilling assembly includes a first fluid flow path and a second fluid flow path;
- advancing the drilling assembly into the earth;
- flowing a fluid through the first fluid flow path and returning at least a portion of the fluid through the second fluid flow path;
- flowing a second portion of the fluid through a third flow path;
- and
- leaving the wellbore lining conduit at a location within the wellbore.
3 more elements
A method for lining a wellbore, comprising:
- providing a drilling assembly comprising an earth removal member and a wellbore lining conduit, wherein the drilling assembly includes a first fluid flow path and a second fluid flow path;
- advancing the drilling assembly into the earth;
- flowing a fluid through the first fluid flow path and returning at least a portion of the fluid through the second fluid flow path;
- selectively altering a trajectory of the drilling assembly;
- and
- leaving the wellbore lining conduit at a location within the wellbore.
3 more elements
A method of drilling a bore in an earth formation, comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member, wherein at least one of the members is spoolable;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- and
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore.
2 more elements
A method of drilling a bore in an earth formation, comprising:
- providing an outer elongate member and an inner elongate member at least partially disposed within the outer member;
- mounting a drill bit to one of the members;
- flowing fluid through an inner annulus between the inner member and the outer member;
- advancing the inner member, the outer member, and the drill bit through the earth formation, thereby forming the bore;
- and
- producing a hydrocarbon fluid while forming the bore.
3 more elements
Dependencies are inferred from the claim text.