US 11,753,886 B2
Expandable metal packing stacks
James Dan Vick, Jr., Dallas, TX (US); Stephen Michael Greci, Little Elm, TX (US); and Michael Linley Fripp, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Appl. No. 17/51,762
Filed by HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
PCT Filed Nov. 14, 2019, PCT No. PCT/US2019/061526
§ 371(c)(1), (2) Date Oct. 29, 2020,
PCT Pub. No. WO2021/096519, PCT Pub. Date May 20, 2021.
Prior Publication US 2023/0017192 A1, Jan. 19, 2023
Int. Cl. E21B 23/02 (2006.01); E21B 23/06 (2006.01); E21B 33/127 (2006.01)
CPC E21B 23/02 (2013.01) [E21B 23/06 (2013.01); E21B 33/127 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wellbore system, comprising:
a tubular string including a at least one landing nipple therein, the at least one landing nipple defining a sealing surface with an internal passageway extending therethrough;
a locking mandrel including an elongated body defining an outer surface, the locking mandrel including a lock for securing the elongated body within the internal passageway extending through a landing;
a sealing mechanism carried by the locking mandrel and including a sealing element constructed of an expandable metal, the expandable metal reactive to form metal hydroxides in the presence of a water-based fluid; and
a radial separation between the sealing element constructed of the expandable metal and the at least one landing nipple before the chemical reaction with the water-based fluid.