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:
Aug. 16, 1994
Filed:
Jan. 06, 1993
Roger Chancey, Humble, TX (US);
Robert J Champagne, Jr, Lafayette, LA (US);
International Drilling Systems, Inc., Lafayette, LA (US);
Abstract
An improved mud motor system for drilling or workover down hole which includes an upper stator portion housed within a stator body connectedly engaged to a drill or workover string. The stator receives a flow of drilling mud through the drill or workover string, and flow of mud through a continuous bore of a certain profile within the stator, imparts rotation to the rotor. The lower end of the rotor is engaged to a first upper drive shaft, which is in turn connected to an upper and lower output shaft. Rotation of the rotor likewise imparts rotation to the drive and output shafts. There is provided a drill bit or specialty bit secured to the lower end of the lower output shaft which, when rotation is in effect, drills into the formation or performs various workover operations. There is further provided fluid bearings within the assembly to provide a quantity of fluid to bear against the lower (or upper) output shaft, so that the shaft contacts the fluid bearing when the shaft is forced upward or down depending on the type of operation taking place.