Process for increasing the flow in oil wells

Claim 1

A PROCESS FOR PERFORMING AT LEAST ONE OF THE OPERATIONS OF FRACTURING AND BRIDGING AN OIL BEARING FORMATION SURROUNDING A BORE HOLE SECTION WHICH COMPRISES INTRODUCING A VISCOUS FLUID COMPOSITION TO SAID FORMATION BENEATH THE GROUND LEVEL UNDER AN ELEVATED OIL BEARIG FORMATION FRACTURING PRESSURE IN WHICH SAID FLUID COMPOSITION INCLUDES A POROUS INORGANIC INSOLUBLE DISCRETE MATERIAL HAVING INCORPORATED IN ITS INTERSTICES AN ORGANIC COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF NAPHTHALENE, PARADICHLOROBENZENE, ANTHRACENE AND THIACALINHYDRIDE WHICH WHEN INTRODUCED TO SAID FORMATION UNDER SAID ELEVATED FACTURING PRESSURE IS IN ITSELF VISCOUS AND HAS THE CAPACITY AT ELEVATED PRESSURE TO BLOCK THE FLOW OF OIL AND WATER AND IS FURTHER CHARACTERIZED BY ITS REDUCED VISCOSITY SOLUBILITY IN OIL WHEN SAID PRESSURE IS REDUCED AND INSOLUBILITY IN WATER.