FIELD: drilling of directional wells. SUBSTANCE: signalling device comprises body 1 with port through which extension piece 3 is connected to bevelled end piece 5 having slot 6. Installed in body 1 is oil chamber 7 with eccentric weight 8 rigidly connected with cylindrical bushing 9 having slot 10 diametrically opposite to weight 8. End piece 9 has slot located on same generating line with port 2. Signalling device is installed in cylindrical branch pipe 17 with stop 18 and pin 19. Rigidly installed between subs 14 and 15 is insert 16. Upper part of signaling device has head for slip 12 used in lifting device to surface. EFFECT: simplified design with increased accuracy of drilling due to control orientation without hoisting drilling tool. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR ORIENTATION OF WHIPSTOCK IN INCLINED AND HORIZONTAL WELLS | 1991 |
|
RU2030576C1 |
| ROTARY DEFLECTING TOOL | 1990 |
|
RU2009304C1 |
| ROTARY DEFLECTING TOOL | 1992 |
|
RU2043479C1 |
| SPINDLE-SECTION OF DEFLECTING TURBODRILL | 1992 |
|
RU2082862C1 |
| DEVICE FOR INDEXING THE DEFLECTOR IN WELL | 0 |
|
SU829896A1 |
| APPARATUS FOR MEASURING PARAMETERS OF CROOKING OF WELL AND DEFLECTOR POSITION | 0 |
|
SU1161698A1 |
| DEFLECTOR | 0 |
|
SU1776281A3 |
| DEFLECTOR-INDEXING DEVICE | 0 |
|
SU1023074A1 |
| DEVICE FOR ORIENTATION OF DEFLECTING TOOL AT WELL FACE | 0 |
|
SU1747684A1 |
| HINGED DEFLECTOR | 0 |
|
SU1776282A3 |
