Black Diamond Oilfield Rentals, LLC

Erdos Miller, Inc.

Steven Paul Howard

Kenneth C Miller

Charles G Kibbe

David Cramer

Christopher W Lane

Kyle W Scholl

A bottom hole assembly has a tubular component with an axis, a first axial end, a second axial end and a poppet valve assembly mounted in the second axial end. An orifice retainer is mounted inside the tubular component adjacent the first axial end. The orifice retainer has a retainer first axial end, a retainer second axial end opposite the retainer first axial end and an orifice pocket adjacent the retainer second axial end. The orifice retainer is installed in and can be removed from the first axial end of the tubular component, opposite the poppet valve assembly. In addition, an orifice is mounted in the orifice pocket of the orifice retainer. The orifice operates in conjunction with the poppet valve assembly.

System, method and apparatus for orifice retention and replacement in a bottom hole assembly

A centralizer for stabilizing fluid flow through a hollow shaft has a body with an axis, an outer surface and a circumference. Fins extend from the outer surface and include a first pair of fins that are axially aligned with each other and circumferentially spaced from each other. A second pair of fins are axially spaced a first distance from the first pair of fins. The second pair of fins are axially aligned with each other and circumferentially spaced from each other. The first and second pairs of fins are circumferentially offset from each other.

Systems, methods and apparatus for stabilizing a downhole tool and fluid flow

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Broussard, LA, United States of America

Steven Paul Howard