B
Bonner Stephen D
Researcher at Schlumberger
Publications - 41
Citations - 1283
Bonner Stephen D is an academic researcher from Schlumberger. The author has contributed to research in topics: Antenna (radio) & Electromagnetic coil. The author has an hindex of 19, co-authored 41 publications receiving 1277 citations.
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Patent
Well logging apparatus having toroidal induction antenna for measuring, while drilling, resistivity of earth formations
TL;DR: In this paper, a toroidal coil antenna is disposed on the body and is energized to induce a current which travels in a path that includes the body, the formations and an electrode, and an electrical signal is measured at the electrode to obtain an indication of the resistivity of the formations.
Patent
Method and apparatus for directional well logging with a shield having sloped slots
Brian Clark,Richard A. Rosthal,Dean M. Homan,Dzevat Omeragic,Bonner Stephen D,Scott S. Chesser,Thomas D. Barber +6 more
TL;DR: In this paper, a new antenna coil shield is proposed to filter interacting electromagnetic energy field components to pass those components corresponding to a magnetic dipole oriented at an angle from the tool axis.
Patent
Apparatus and method for determining the resistivity of earth formations
TL;DR: In this article, an apparatus for determining the resistivity of formations surrounding an earth borehole is presented, where an electrode is mounted on the body and has a surface that is electrically isolated from the surface of the body.
Patent
Eddy current method and apparatus for inspecting ferromagnetic tubular members
TL;DR: In this article, a case inspection system for ferromagnetic oil well casings is described, which utilizes a pair of coaxial transmitter coils for generating an alternating magnetic field in the casing and inducing circumferential currents.
Patent
Dipmeter apparatus and method using transducer array having longitudinally spaced transducers
TL;DR: In this paper, a disclosed embodiment utilizes one or more toroidal coil antennas mounted, in an insulating medium, on a drill collar to induce currents which travel in a path that includes the drill and earth formations around the drill collar.