Haynes & Boone, LLP
Wide bandwidth drill pipe structure for acoustic telemetry
In some examples, a drillstring includes a plurality of drill pipe sections that are coupled together by a drill pipe joint section structure. The drill pipe sections and the drill pipe joint section structure are acoustically impedance matched. In another example, the drill pipe sections comprise a plurality of different pipe lengths, those lengths being different than a length of the drill pipe joint section structure. A drillstring is constructed of these different lengths of drill pipe and drill pipe joint section structures in a non-periodic manner or random sequence. In another example, the drill pipe sections and drill pipe joint section structure comprise materials having substantially similar acoustic properties.
HALLIBURTON ENERGY SERVICES, INC.
E E E
E21B E21B E21B
inventional inventional inventional
Chung Hua Chris
Chang Xia Gao