| US 11,746,611 B2 | ||
| Whipstock retrieving bit | ||
| Richard Mark Pye, Aberdeen (GB) | ||
| Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA) | ||
| Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA) | ||
| Filed on Jul. 28, 2021, as Appl. No. 17/386,751. | ||
| Prior Publication US 2023/0036409 A1, Feb. 2, 2023 | ||
| Int. Cl. E21B 23/04 (2006.01); E21B 7/06 (2006.01); E21B 29/06 (2006.01); E21B 34/06 (2006.01); E21B 34/16 (2006.01); E21B 47/013 (2012.01) | ||
| CPC E21B 23/0413 (2020.05) [E21B 7/061 (2013.01); E21B 23/0419 (2020.05); E21B 29/06 (2013.01); E21B 34/16 (2013.01); E21B 34/066 (2013.01); E21B 47/013 (2020.05)] | 18 Claims |
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1. A retrievable whipstock assembly for a wellbore, comprising:
a whipstock comprising a longitudinal body and an anchor connection; a deflection surface provided on the longitudinal body and having a first engagement element; and a drilling assembly comprising a drill housing and a second engagement element, wherein the second engagement element is selectively extendible between a recessed position and an extended position; wherein in the extended position the second engagement element is engageable with the first engagement element, wherein the first engagement element comprises a slot that extends radially through the deflection surface of the whipstock, and wherein the drilling assembly further comprises a drill bit. |