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:
Apr. 08, 2014
Filed:
Jan. 07, 2008
Nolan C. Lerche, Stafford, TX (US);
James E. Brooks, Manvel, TX (US);
Jesper Oluf Larsen, Vallensbaek Strand, DK;
Brian Thomsen, Frederikssund, DK;
Kasper Juul Larsen, Valby, DK;
Nolan C. Lerche, Stafford, TX (US);
James E. Brooks, Manvel, TX (US);
Jesper Oluf Larsen, Vallensbaek Strand, DK;
Brian Thomsen, Frederikssund, DK;
Kasper Juul Larsen, Valby, DK;
Hunting Titan, Inc., Pampa, TX (US);
Abstract
Apparatus and methods for controlling and communicating with one or more tools in a downhole tool string including a tractor, an auxiliary tractor tool, a logging tool, a safety sub, a release mechanism, a unit containing sensors for monitoring downhole conditions, a setting tool, and a perforating gun. Control and communication are accomplished by sending signals from the surface to control switches in the control units on the tool, with redundant switches for safety, to state machines in the respective control units, each state machine returning a signal verifying switch status to the surface. The state machine need not return a signal including a unique identifier.