Method and apparatus for treating wells

Claim 1

IN APPARATUS FOR PRODUCING MECHANICAL VIBRATIONS INCLUDING A FLUID DRIVEN VIBRATING HEAD HAVING INTAKE AND EXHAUST PORTS FOR THE DRIVING FLUID, THE IMPROVEMENT WHICH COMPRISES AN ELONGATED HANGER ASSEMBLY FOR SUSPENDING AN OPERATING SAID VIBRATING HEAD WITHIN THE CONFINES OF A WELL BORE AT LOCATIONS ABOVE THE BOTTOM OF THE WELL, SAID HANGER ASSEMBLY COMPRISING A CENTRAL CONDUIT FOR CARRYING THE SUPPLIED DRIVING FLUID, MEANS DISPOSED INSIDE THE CENTRAL CONDUIT FOR FILTERING THE DRIVING FLUID BEFORE IT REACHES THE VIBRATING HEAD, A HOSE OF FLEXIBLE MATERIAL COUPLING THE LOWER END OF THE CENTRAL CONDUIT TO THE INTAKE PORT OF THE VIBRATING HEAD, AM OUTER CONDUIT SURROUNDING THE CENTRAL CONDUIT AND DEFINING AN ANNULAR PASSAGEWAY FOR CARRYING THE EXHAUSTED DRIVING FLUID, MECHANICAL MEANS SURROUNDING SAID FLEXIBLE HOSE AND COUPLING THE LOWER END OF THE OUTER CONDUIT TO THE VIBRATING HEAD SO THAT SAID ANNULAR PASSAGEWAY COMMUNICATES WITH THE EXHAUST PORT OF THE VIBRATING HEAD, SAID MECHANICAL MEANS INCLUDING MEANS WHICH AFFORDS A HIGH IMPEDANCE TO TRANSMISSION OF VIBRATORY ENERGY FROM THE VIBRATING HEAD TO THE OUTER CONDUIT, AND MEANS SUPPORTING THE CENTRAL CONDUIT ON THE OUTER CONDUIT.