METHOD OF FIRE EXTINGUISHING AT OIL AND GAS FIELDS Russian patent published in 2000 - IPC

FIELD: methods of fire extinguishing at oil and gas fields. SUBSTANCE: method includes delivery of self-contained drilling unit to side of fire; orientation of starting guides of self-contained drilling unit in direction of emergency well at definite angle to vertical; drilling of inclined well to encounter or to approach the bore emergency well; producing pulse impact to bore of emergency well; action on emergency object and fire extinguishing on it. For fire extinguishing, delivered to emergency well are two or more self-contained drilling units and installed on different sides of emergency well. Stating guides of self-contained drilling rigs are oriented, and inclined wells are drilled simultaneously from different sides of emergency well to its bore. Used for the purpose are self-contained drilling units provided with apparatuses receiving acoustic signals from bore of emergency well. These apparatuses are in form of registering units. With reception of acoustic signals of their maximum values, pulse impacts are delivered from different sides to bore of emergency well due to simultaneous operation of pulse impact devices. EFFECT: higher reliability, safety and efficiency of process of fire extinguishing on emergency wells at oil and gas fields. 4 cl, 6 dwg