Patent ID: 8561726

Claim:
A system for performing vertical drilling operations and minimizing deviations of a drill string having a lower portion and a longitudinal axis, the system comprising: a plurality of stabilizers secured to the lower portion of the drill string to provide improved stability to the drill string, wherein the lower portion of the drill string comprises at least one tubular member, wherein each of the at least one tubular member comprises a first threaded portion located at an end of the at least one tubular member, a second threaded portion located at an opposite end of the at least one tubular member, and at least one external threaded portion located between the first and second threaded portions, wherein at least one of the plurality of stabilizers comprises a substantially triangular cross-sectional area oriented perpendicular to the longitudinal axis of the drill string, and a plurality of blades secured to the at least one stabilizer at points associated with corners of the substantially triangular cross-sectional area to minimize directional deviations of the drill string during vertical drilling operations, and wherein the at least one of the plurality of stabilizers is positioned concentrically about the at least one tubular member and threadedly connected with the at least one external threaded portion of the at least one tubular member.