Back to results
US 12,687,079 B1Granted
Wireline setting assembly
AssigneeWellbore Solutions, Inc.
InventorsOneil J. Legendre, III, Bryant J. Hebert, Jr.
Life of this patent
Estimating the term…
Abstract
A wireline setting assembly for engaging oil and gas downhole tools is provided. The setting assembly has a piston inside a cylinder and allows annular fluid to flow into an internal cavity. Pressure in an upper chamber of the cylinder causing motion of the piston is resisted by annular fluid flowing out of the internal cavity through an orifice, thereby creating a smooth motion of the piston. The pressure is automatically released through the orifice when the piston head reaches a lower cylinder chamber having a wider diameter than the piston head, allowing pressure to flow from the upper chamber into the lower chamber and out of the orifice.
Claims29
A wireline setting assembly for engaging a downhole tool comprising:
- a cylinder, a piston, a mandrel, a sleeve adapter, and a crosslink;
- wherein said cylinder comprises a cylinder wall, at least one orifice, and an internal cavity comprising an upper chamber and a lower chamber;
- wherein said at least one orifice provides an opening between said lower chamber and an exterior of said cylinder;
- wherein said piston comprises a piston head, a piston body, a piston bottom end, and a crosslink receptacle;
- wherein said mandrel comprises a mandrel cavity, a first mandrel crosslink slot, and a second mandrel crosslink slot;
- wherein said first mandrel crosslink slot and said second mandrel crosslink slot each extend along an axial length of said mandrel;
- wherein said sleeve adapter comprises a sleeve adapter cavity, a first sleeve adapter crosslink slot, and a second sleeve adapter crosslink slot;
- wherein said mandrel is within said sleeve adapter cavity;
- wherein a bottom end of said cylinder is removably fastened to a top end of said mandrel;
- wherein said piston head forms an airtight seal against an inner wall of said lower chamber;
- wherein said crosslink affixes said sleeve adapter to said piston by extending through said first sleeve adapter crosslink slot, said second sleeve adapter crosslink slot, and said crosslink receptacle;
- wherein said crosslink slidably affixes said piston and said sleeve adapter to said mandrel by extending through said first mandrel crosslink slot and said second mandrel crosslink slot;
- wherein said crosslink, said piston, and said sleeve adapter are configured to engage in a sliding motion along said axial length;
- wherein motion of said piston along said axial length results in said piston head moving between a first location in said lower chamber and a second location in said lower chamber.
11 more elements
A wireline setting assembly kit comprising:
- a cylinder, a piston, a mandrel, a sleeve adapter, and a crosslink;
- wherein said cylinder comprises a cylinder wall, at least one orifice, and an internal cavity comprising an upper chamber and a lower chamber;
- wherein said at least one orifice provides an opening between said lower chamber and an exterior of said cylinder;
- wherein said piston comprises a piston head, a piston body, a piston bottom end, and a crosslink receptacle;
- wherein said mandrel comprises a mandrel cavity, a first mandrel crosslink slot, and a second mandrel crosslink slot;
- wherein said first mandrel crosslink slot and said second mandrel crosslink slot each extend along an axial length of said mandrel;
- wherein said sleeve adapter comprises a sleeve adapter cavity, a first sleeve adapter crosslink slot, and a second sleeve adapter crosslink slot;
- wherein said cylinder is configured to receive said piston head;
- wherein a bottom end of said cylinder is configured to be removably fastened to a top end of said mandrel;
- wherein said sleeve adapter cavity is configured to receive said mandrel;
- wherein said cylinder is configured to create an airtight seal between said piston head and an inner wall of said lower chamber;
- wherein said sleeve adapter and said piston are configured to be affixed together by said crosslink extending through said first sleeve adapter crosslink slot, said second sleeve adapter crosslink slot, and said crosslink receptacle;
- wherein said sleeve adapter, said piston, and said mandrel are configured to be slidably affixed together by said crosslink extending through said first mandrel crosslink slot and said second mandrel crosslink slot;
- wherein, when said wireline assembly kit is assembled, said crosslink, said piston, and said sleeve adapter are configured to engage in a sliding motion along said axial length;
- wherein motion of said piston along said axial length results in said piston head moving between a first location in said lower chamber and a second location in said lower chamber.
12 more elements
A method of using a wireline setting assembly to engage a downhole tool comprising the steps of:
- 1) Assembling said wireline setting assembly;
- 2) Attaching said downhole tool to said wireline setting assembly and placing a setting charge in said wireline setting assembly;
- 3) Lowering said wireline setting assembly into a casing;
- 4) Filling said wireline setting assembly with annular fluid in said casing;
- 5) Engaging said wireline setting assembly by detonating said setting charge;
- 6) Releasing a pressure caused by said setting charge;
- 7) Removing said wireline setting assembly from said casing;
- 8) Disassembling said wireline setting assembly;
- wherein said wireline setting assembly comprises a cylinder, a piston, a mandrel, a sleeve adapter, and a crosslink;
- wherein said cylinder comprises a cylinder wall, at least one orifice, and an internal cavity comprising an upper chamber and a lower chamber;
- wherein said at least one orifice provides an opening between said lower chamber and an exterior of said cylinder;
- wherein said piston comprises a piston head, a piston body, a piston bottom end, and a crosslink receptacle;
- wherein said mandrel comprises a mandrel cavity, a first mandrel crosslink slot, and a second mandrel crosslink slot;
- wherein said first mandrel crosslink slot and said second mandrel crosslink slot each extend along an axial length of said mandrel;
- wherein said sleeve adapter comprises a sleeve adapter cavity, a first sleeve adapter crosslink slot, and a second sleeve adapter crosslink slot;
- wherein said assembling step comprises the step of removably fastening a bottom end of said cylinder to a top end of said mandrel;
- wherein said assembling step comprises the step of inserting said crosslink through said first sleeve adapter crosslink slot, said second sleeve adapter crosslink slot, said first mandrel crosslink slot, said second mandrel crosslink slot, and said crosslink receptacle to affix said sleeve adapter to said piston and to slidably affix said piston and said sleeve adapter to said mandrel;
- wherein said assembling step comprises the step of sliding said piston head into a first position of said lower chamber to create an airtight seal against an inner wall of said lower chamber;
- wherein, in said engaging step, said crosslink, said piston, and said sleeve adapter engage in a sliding motion along said axial length and motion of said piston along said axial length results in said piston head moving between said first location in said lower chamber and a second location in said lower chamber.
16 more elements
Dependencies are inferred from the claim text.