US 12,404,733 B2
Drop tool impact shock mitigation with fluid retention method and system
Jason Rapp, Norman, OK (US)
Assigned to Scientific Drilling International, Inc., Houston, TX (US)
Filed by Scientific Drilling International, Inc., Houston, TX (US)
Filed on Aug. 7, 2024, as Appl. No. 18/796,879.
Claims priority of provisional application 63/542,238, filed on Oct. 3, 2023.
Prior Publication US 2025/0109645 A1, Apr. 3, 2025
Int. Cl. E21B 23/10 (2006.01); E21B 33/12 (2006.01); E21B 47/00 (2012.01)
CPC E21B 23/10 (2013.01) [E21B 33/12 (2013.01); E21B 47/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of landing a tool downhole in a tool dropping operation, comprising:
running a tubular string into a wellbore, wherein the tubular string includes a seat defining a first restriction in an inner diameter of the tubular string and a landing profile defining a second restriction in the inner diameter of the tubular string above the seat;
dropping a plug into the tubular string and onto the seat to block fluid flow through the seat;
filling the tubular string above the plug on the seat with a liquid-based fluid; and
passing the tool in the tool dropping operation through the fluid until an outward extending landing element of the tool is retained at the landing profile.