FIELD: drilling of wells of various applications. SUBSTANCE: motor is assembled of separate cylinder-piston blocks operating reversely and developing axial forces of any practically needed value. Slide valve unit is compact, inspectable and cleaned without disassembly of motor. All working medium (energy carrier and washer at the same time) supplied to motor through rotating pipe string after motor is directed for well flushing. EFFECT: higher efficiency. 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| POWER UNIT FOR PIPE UNSCREWING DEVICE | 1992 |
|
RU2093662C1 |
| ANCHOR PACKER | 1998 |
|
RU2135739C1 |
| DRILL PIPE SPINNER MOTOR | 0 |
|
SU1677251A1 |
| UNIVERSAL PREVENTER | 1991 |
|
RU2013519C1 |
| MOTOR FOR BOTTOM-HOLE TURNING OF PIPE | 0 |
|
SU1596067A1 |
| BLOWOUT PREVENTER | 1991 |
|
RU2008434C1 |
| MULTIFUNCTIONAL DRIVE OF RAM-TYPE BLOWOUT PREVENTER | 1993 |
|
RU2097527C1 |
| UNIVERSAL DRIVE OF SLIP-TYPE PREVENTER | 1993 |
|
RU2085701C1 |
| BLOWOUT PREVENTER | 0 |
|
SU1744237A2 |
| PREVENTER | 1990 |
|
RU2079634C1 |
