Whipstock with bottom-set mechanical anchor (KOYAM)
The whipstock with a mechanical single-die anchor is designed for casing exit through one or multiple casings. The whipstock system - comprising a starting mill (SM) and a watermelon mill (WM) - enables whipstock setting, casing exit and rathole drilling in a single trip. The system is mechanically set on bottom on a cement plug or bridge plug.
Characteristics:
The whipstock with a mechanical single-die anchor is designed for casing exit through one or multiple casings. The whipstock system - comprising a starting mill (SM) and a watermelon mill (WM) - enables whipstock setting, casing exit and rathole drilling in a single trip. The system is mechanically set on bottom on a cement plug or bridge plug.
|
Designation |
Nominal casing dia., mm |
Whipstock & mechanical anchor OD |
Whipstock length, mm |
Mechanical anchor length, mm |
Total length, mm |
Shearing force of the transportation bolt, tn
|
|
KOYAM-139.05 |
139 |
112 |
2600 |
2130 |
4630 |
9÷11 |
|
KOYAM -146.05 |
140/146 |
115 |
2600 |
2130 |
4630 |
9÷11 |
|
KOYAM -168/178.05 |
168/178 |
135 |
2900 |
2130 |
4930 |
9÷11 |
|
KOYAM -245.05 |
245 |
200 |
4500 |
3160 |
7460 |
15÷18 |
