76356534
Jan 7, 2002
Oct 1, 2002
POWER OPERATED DOWNHOLE TOOLS USED FOR THE DRILLING AND COMPLETION OF OIL AND GAS WELLS, NAMELY, WELLBORE DISPLACEMENT TOOLS, CASING AND TUBULAR SCRAPERS; DOWNHOLE BRUSH AND CLEANUP TOOLS; POWER OPERATED FLUID FILTERS FOR SELECTIVELY FILTERING AND REMOVING SOLIDS FROM DOWNHOLE FLUIDS; POWER OPERATED FLUID CIRCULATORS THAT CAUSE DOWNHOLE FLUID TO IMPACT THE INTERIOR OF A CASING OR LINER WITHIN A WELL BORE TO PROVIDE A CLEANING ACTION, AND WHICH SELECT A PATH FOR FLUID TRAVEL IN A CASING OR LINER WITHIN A WELL BORE; AND POWER OPERATED FLUID SAMPLING TOOLS FOR COLLECTING FLUID SAMPLES WITHIN A WELL BORE
Machinery