Tubular Casing Member with Helical Threads
OwnerDonald Patrick Muthinventor
Life of this patent
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Abstract
A drilling device for use in a wellbore may include a tubular casing member having an external surface, and a thread member positioned on the exterior surface of the tubular casing member. The thread member may form a spiral on the exterior surface of the tubular casing member. The thread member may have a pentagonal cross section. The thread member may have a pitched cross section. The thread member may have a triangular cross-section. The thread member may have a convex cross-section. The thread member may have a concave cross-section. The thread member may have a rectangular cross section.
Claims7
1) A drilling device for use in a wellbore, comprising:
- a tubular casing member having an external surface;
- a thread member positioned on the exterior surface of the tubular casing member;
- wherein the thread member forms a spiral on the exterior surface of the tubular casing member.
Dependencies are inferred from the claim text.