Downhole tool and method of use
AssigneeNational Boss Hog Energy Services, LLC
InventorDuke VanLue
Life of this patent
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Abstract
Embodiments of the disclosure pertain to a downhole tool useable for isolating sections of a wellbore that includes a mandrel, the mandrel further having a body comprising an external surface, and an inner bore formed therein; a distal end; and a proximate end; wherein the mandrel is made of composite material, wherein a set of shear threads are disposed along a surface of the inner bore at the proximate end. Embodiments of the tool include a slip disposed about the mandrel, wherein the slip comprises a one-piece configuration.
Claims28
A downhole tool useable for isolating sections of a wellbore, the downhole tool comprising:
- a mandrel, the mandrel further comprising:
- a body comprising an external surface, and an inner bore formed therein;
- a distal end;
- and
- a proximate end;
- wherein the mandrel is made of composite material, wherein a set of shear threads are disposed along a surface of the inner bore at the proximate end;
- and
- a slip comprising polymoldable material disposed about the mandrel, wherein the slip comprises a one-piece configuration.
A downhole tool for isolating zones in a well comprising:
- a mandrel comprising composite material, the mandrel further comprising:
- a body comprising an external surface, and an inner bore formed therein;
- a first set of shear threads for mating with a setting tool, the first set disposed on an inner bore surface;
- and
- a second set of threads for coupling to a lower sleeve, the second set disposed on the external surface;
- a seal element disposed around the mandrel, the seal element configured to buckle and expand radially in response to application of force on the seal element;
- and
- a slip comprising a one-piece configuration also disposed around the mandrel.
A downhole tool useable for isolating sections of a wellbore, the downhole tool comprising:
- a mandrel, the mandrel comprising:
- a body having a proximate end with a first outer diameter and first outer surface, a distal end with a second outer diameter and second outer surface, and a flowbore;
- a set of threads disposed on the second outer surface;
- a transition region formed on the body between the proximate end and the distal end, and further comprising a taper extending from the first outer surface to the second outer surface,
- wherein the mandrel is made of filament wound drillable material.
A downhole tool useable for isolating sections of a wellbore, the downhole tool comprising:
- a mandrel, the mandrel comprising:
- a body having a proximate end comprising shear threads and a first outer diameter, a distal end comprising rounded threads and a second outer diameter, and an inner bore disposed between the proximate end and the distal end;
- and
- a transition region formed on the body between the proximate end and the distal end,
- wherein the mandrel is made from composite filament wound material,
- wherein the mandrel comprises an outer surface along the body, and an inner surface along the inner bore, wherein the shear threads are formed on the inner surface;
- a seal element disposed around the mandrel, the seal element configured to buckle and expand radially in response to application of force on the seal element;
- and
- a slip comprising a one-piece configuration also disposed around the mandrel.
Dependencies are inferred from the claim text.