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.

Date of Patent:
Oct. 15, 2019

Filed:

Apr. 18, 2016
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Christopher Todd Kent, Sugar Land, TX (US);

Srinand Sreedharan Karuppoor, Sugar Land, TX (US);

Anthony Frank Veneruso, Sugar Land, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05F 3/04 (2006.01); E21B 47/00 (2012.01); E21B 47/12 (2012.01);
U.S. Cl.
CPC ...
H05F 3/04 (2013.01); E21B 47/00 (2013.01); E21B 47/12 (2013.01);
Abstract

An instrument to produce ionizing radiation includes a high voltage source of charge and ionizing radiation; a housing filled with insulating gas and containing the high voltage source; an insulator to which the high voltage source is mounted so that the source is spaced from the housing; one or more collector electrodes arranged in the housing such that the high voltage source preferentially discharges to the collector electrode(s); a control system which determines a level of ionization of the insulating gas through the amount of discharge to the collector electrode(s); and/or discharge rate limiting means controllable by the control system to deionize the insulating fluid at a controlled discharge rate and thereby maintain the maximum rate of discharge below a predetermined current. In this way, breakdown events can be inhibited.


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