The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2017
Filed:
Mar. 17, 2014
Fmc Kongsberg Subsea As, Kongsberg, NO;
Sergey Ivanovich Krivosheev, St. Petersburg, RU;
Evgeni Lvovich Svechnikov, St. Petersburg, RU;
Georgy Petrovich Zhabko, St. Petersburg, RU;
Andrey Aleksandrovich Belov, St. Petersburg, RU;
Yuri Eduardovich Adamian, Pos. Kuzmolovski Leningradskaya obl., RU;
FMC Kongsberg Subsea AS, Kongsberg, NO;
Abstract
A well tool () for use in a well pipe comprises a housing () and a pulse generator () provided within the housing (). The pulse generator () comprises an inductor (Ls), and a power supply device (HV, c) for supplying electrical power to the inductor (L) and thereby providing that an electromagnetic pulse is generated, in such a way that the electromagnetic pulse is providing physical vibrations in the well pipe. A cross sectional gap area (Agap) of an annular gap between a median of the inductor (Ls) and an inner surface of the well pipe is substantially equal to an inner cross sectional area (Ainner) of the inductor (Ls) up to the median diameter (d) of the inductor.