FIELD: deep drilling of oil and gas wells under hydrodynamic pressure. SUBSTANCE: borehole tool is lowered, rock is drilled and lifted, temperature action on walls of well in limited interval of string clearance opposite to cylindrical part of borehole tool is executed. Interval of string clearance presents zone limited by sliding packers where steam and gas cushion is formed by heating while maintaining pressure in it not higher than bursting pressure of pool. Walls of well in mentioned zone are dried with subsequent vitrification and compression. Facility for realization of process is presented. EFFECT: increased drilling efficiency thanks to reliable strengthening of walls of well. 4 dwg, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PLANETARY DRILL | 2000 |
|
RU2174583C1 |
| DOWNHOLE MOTOR BIT SHAFT | 2001 |
|
RU2192533C2 |
| DRILLING DEVICE | 1999 |
|
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| DEVICE FOR CEMENTATION OF CASING STRING IN WELL | 1997 |
|
RU2127355C1 |
| TURBO-DRILL | 2000 |
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| ARRANGEMENT TO CUT WINDOWS IN OIL STRING | 1999 |
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| SHOCK-ABSORBER TURBODRILL | 2000 |
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| EXPANDER OF CUTTING TYPE | 2000 |
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| SCREW POSITIVE-DISPLACEMENT MOTOR WITH TURBINE ACTIVATOR | 2002 |
|
RU2203380C1 |
| BALL BIT SHAFT OF DOWNHOLE MOTOR | 2001 |
|
RU2186187C1 |
