FIELD: turbine drilling of controlled directional wells. SUBSTANCE: assembly includes drilling bit, near-bit drill string stabilizer, turbodrill, near-turbine drill string stabilizer and drill collars. Located between bit and turbodrill is shock absorber of longitudinal vibration. Installed above turbodrill is double-hinged stabilizer-deflector. Drill collars include two hinge joints with distance between hinges determined by relation given in invention description. Arranged between body of double-hinge stabilizer and shafts of each hinge joint are returning flexible members. EFFECT: higher efficiency. 1 dwg
Title | Year | Author | Number |
---|---|---|---|
ARRANGEMENT OF BOTTOM PART OF DRILLING STRING FOR DIRECTED DRILLING OF WELL | 1998 |
|
RU2148696C1 |
BOTTOM COLLAR VIBRATION DAMPENER | 1991 |
|
RU2015294C1 |
SHOCK ABSORBER-METAL ARRESTER | 1989 |
|
RU2014426C1 |
ARRANGEMENT OF BOTTOM PART OF DRILL STRING FOR DIRECTIONAL DRILLING | 0 |
|
SU1506056A1 |
METHOD OF SINKING OF DIRECTIONAL WELLS | 1990 |
|
RU2027842C1 |
METHOD FOR CONTROL OF WHIPSTOCK IN DRILLING WELL BY UNIT WITH BOTTOM-HOLE MOTOR | 1998 |
|
RU2144604C1 |
ASSEMBLY OF DRILL STRING BOTTOM FOR DRILLING OF OFFSHOOTS FROM HORIZONTAL PART OF UNCASED WELL | 2019 |
|
RU2719875C1 |
ASSEMBLY OF BOTTOM OF DRILL STRING FOR DRILLING OF OFFSHOOTS FROM HORIZONTAL PART OF UNCASED WELL | 2019 |
|
RU2715482C1 |
METHOD OF SINKING AN INCLINED BOREHOLE WITH A HOLE-BOTTOM MOTOR | 0 |
|
SU1550071A1 |
SYSTEM FOR MEASURING BOTTOM-HOLE PARAMETERS DURING DRILLING | 1994 |
|
RU2087705C1 |
Authors
Dates
1994-06-30—Published
1991-04-04—Filed