Reduction of gas and water coning into oil wells

Claim 1

A METHOD OF REDUCING THE FLOW INTO A WELL OF FLUIDS OTHER THAN OIL DURING THE PRODUCTION OF OIL FROM AN OILBEARING FORMATION PENETRATED BY THE BOREHOLE OF THE WELL, SAID OIL-BEARING FORMATION HAVING AN OIL ZONE AND A ZONE OF A FLUID OTHER THAN OIL ADJACENT TO AND COMMUNICATING WITH SAID OIL ZONE, COMPRISING FORMING A SUBSTANTIALLY HORIZONTAL FRACTURE FROM THE BOREHOLE INTO THE OIL ZONE OF THE FORMATION, INJECTING A FLUID SEALING MATERIAL CAPABLE OF FORMING A SOLID MATERIAL INSOLUBLE IN OIL AND IN WATER INTO THE FRACTURE AND INTO THE WALLS OF THE FRACTURE TO SEAL SAID WALLS SUBSTANITALLY PERMANENTLY AND CONTINUOUSLY FROM THE BOREHOLE OF THE WELL TO THE OUTER EXTERMITIES OF THE FRACTURE AND THEREBY PREVENT FLOW OF OIL AND WATER THROUGH THE SEALED WALLS INTO THE FRACTURE, MAINTAINING THE FRACTURE OPEN WHILE SAID WALLS ARE BEING SEALED, INJECTING A FLUID INTO THE FRACTURE UNDER A PRESSURE SADAPTED TO EXTEND THE FRACTURE RADIALLY BEYOND THE SEALED WALLS OF THE FRACTURE, AND PROPPING THE FRACTURE AND EXTENSION OF THE FRACTURE WHEREBY ON PRODUCTION OF THE WELL FLUIDS ENTER THE EXTENSION OF THE FRACTURE AND FLOW THROUGH THE FRACTURE TO THE WELL.

Claim 2

A METHOD OF REDUCING THE FLOW INTO A WELL OF FLUIDS OTHER THAN OIL DURING THE PRODUCTION OF OIL FROM AN OILBEARING FORMATION PENETRATED BY THE BOREHOLE OF THE WELL, SAID OIL-BEARING FORMATION HAVING AN OIL ZONE AND A ZONE OF A FLUID OTHER THAN OIL ADJACENT TO AND COMMUNICATING WITH SAID OIL ZONE, COMPRISING FORMING A SUBSTANTIALLY HORIZONTAL FRACTURE FROM THE BOREHOLE INTO THE OIL ZONE OF THE FORMATION, INJECTING A FLUID SEALING MATERIAL CAPABLE OF FORMING A SOLID MATERIAL INSOLUBLE IN OIL AND IN WATER INTO THE FRACTURE AND INTO THE WALLS OF THE FRACTURE TO SEAL SAID WALLS SUBSTANITALLY PERMANENTLY AND CONTINUOUSLY FROM THE BOREHOLE OF THE WELL TO THE OUTER EXTERMITIES OF THE FRACTURE AND THEREBY PREVENT FLOW OF OIL AND WATER THROUGH THE SEALED WALLS INTO THE FRACTURE, MAINTAINING THE FRACTURE OPEN WHILE SAID WALLS ARE BEING SEALED, INJECTING A FLUID INTO THE FRACTURE UNDER A PRESSURE SADAPTED TO EXTEND THE FRACTURE RADIALLY BEYOND THE SEALED WALLS OF THE FRACTURE, AND PROPPING THE FRACTURE AND EXTENSION OF THE FRACTURE WHEREBY ON PRODUCTION OF THE WELL FLUIDS ENTER THE EXTENSION OF THE FRACTURE AND FLOW THROUGH THE FRACTURE TO THE WELL.