Methods and apparatus for generating electromagnetic telemetry signals
Номер патента: CA3081289A1
Опубликовано: 24-12-2014
Автор(ы): Aaron W. LOGAN, Daniel W. AHMOYE, David A. Switzer, Justin C. LOGAN, Mojtaba KAZEMI MIRAKI, Patrick R. DERKACZ
Принадлежит: Evolution Engineering Inc
Опубликовано: 24-12-2014
Автор(ы): Aaron W. LOGAN, Daniel W. AHMOYE, David A. Switzer, Justin C. LOGAN, Mojtaba KAZEMI MIRAKI, Patrick R. DERKACZ
Принадлежит: Evolution Engineering Inc
Реферат: An example apparatus for mounting a probe in a section of drill string comprises the probe, the section of drill string, a gap sub in the section of drill string, and a rod. The rod is connected to support the probe. The rod passes through at least a portion of a bore in the gap sub. The bore of the gap sub has a diameter that is smaller than an internal diameter of the section of drill string on both sides of the gap sub. A diameter of the rod is less than a diameter of the probe.
Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location
Номер патента: US09988896B2. Автор: David A. Switzer,Aaron W. LOGAN,Jili Liu,Mingdong Xu. Владелец: Evolution Engineering Inc. Дата публикации: 2018-06-05.