Patent · US Expired

Apparatus and methods for induction-SFL logging

US7042225B2 · kind B2 · utility

9Cited by
28References
23Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 12, 2003
Grant dateMay 9, 2006
Priority date
Expiry dateAug 1, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01V3/20
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A well logging tool includes an induction array stack disposed on a mandrel; an electronic module stack disposed adjacent the induction array stack along a longitudinal axis of the well logging tool; and a shallow electrode array arranged on a housing disposed around the electronic module stack, wherein the induction array stack comprises a transmitter antenna, a first receiver antenna, and a second receiver antenna spaced apart from each other along the longitudinal axis of the well logging tool, the second receiver antenna being disposed between the transmitter antenna and the first receiver antenna.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.