Hydraulic connector apparatuses and methods of use with downhole tubulars
AssigneePilot Drilling Control Limited
InventorsGeorge Swietlik, Robert Large
Life of this patent
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Abstract
A tool to direct a fluids from a lifting assembly and a bore of a downhole tubular includes an engagement assembly configured to selectively extend and retract a seal assembly disposed at a distal end of the tool into and from a proximal end of the downhole tubular and a valve assembly operable between an open position and a closed position, wherein the valve assembly is configured to allow fluids from the lifting assembly to enter the downhole tubular through the seal assembly when in the closed position and wherein the valve assembly is configured to allow fluids from the downhole tubular to be diverted from the lifting assembly when in the open position.
Claims31
A tool to direct fluids from a lifting assembly and a bore of a downhole tubular, the tool comprising:
- an engagement assembly configured to selectively extend and retract a seal assembly disposed at a distal end of the tool into and from a proximal end of the downhole tubular;
- and
- a valve assembly operable between an open position and a closed position;
- wherein the valve assembly is configured to allow fluids from the lifting assembly to enter the downhole tubular through the seal assembly when in the closed position;
- wherein the valve assembly is configured to allow fluids from the downhole tubular to be diverted from the lifting assembly when in the open position;
- wherein the valve assembly comprises a shuttle valve piston operable between a first position and a second position;
- and
- wherein the shuttle valve piston is configured to block a bypass port in the first position and the shuttle valve piston is configured to reveal the bypass port in the second position.
A method to direct fluids from a lifting assembly and a bore of a downhole tubular, the method comprising:
- providing a communication tool to a distal end of the lifting assembly, the communication tool comprising an engagement assembly, a valve assembly, and a seal assembly;
- extending the seal assembly into the bore of the downhole tubular with the engagement assembly;
- pumping fluids from the lifting assembly, through the communication tool, and into the downhole tubular;
- opening the valve assembly to divert fluids flowing in reverse from the downhole tubular to a bypass port;
- and
- retracting the seal assembly from the bore of the downhole tubular with the engagement assembly.
A valve assembly to direct fluids from a lifting assembly and a downhole tubular, the valve assembly comprising:
- a shuttle valve piston operable to block a bypass port in a first position and to reveal the bypass port in a second position;
- a seal cap extending from an end of the shuttle valve piston;
- a secondary piston disposed about the end of the shuttle valve piston;
- and
- a one-way valve configured to block fluids from the downhole tubular from flowing into the lifting assembly;
- wherein the shuttle valve piston is configured to be thrust into the first position by the fluids from the lifting assembly acting upon the seal cap;
- wherein the shuttle valve piston is configured to be thrust into the second position by the fluids from the downhole tubular acting upon the one-way valve;
- wherein the secondary piston is biased to seal against the seal cap to block flow of the fluids from the lifting assembly from the downhole tubular;
- wherein the secondary piston is configured to be thrust away from the seal cap by the fluids from the lifting assembly when the shuttle valve piston is in the first position.
Dependencies are inferred from the claim text.