US 12,448,769 B2
Modular well cellar
Chad A. Fellabaum, Belle Vernon, PA (US); Justin M. Tyson, Spring, TX (US); Darrius Jeurimo Dias, College Station, TX (US); Kyle Sanborn, Dallas, TX (US); Nicklas Baginski, Austin, TX (US); and Matthew Fanaff, Cypress, TX (US)
Assigned to NATIONAL OILWELL VARCO, L.P., Houston, TX (US)
Filed by NATIONAL OILWELL VARCO, L.P., Houston, TX (US)
Filed on Jul. 21, 2022, as Appl. No. 17/814,054.
Prior Publication US 2024/0026674 A1, Jan. 25, 2024
Int. Cl. E04B 1/00 (2006.01); E04B 1/343 (2006.01); E21B 15/00 (2006.01)
CPC E04B 1/0015 (2013.01) [E04B 1/34336 (2013.01); E21B 15/00 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A modular well cellar system comprising:
a planar base member for placement below grade in a well cellar excavation and defining an aperture sized to receive a conductor pipe;
a first end member secured to the base member and configured to support a first lateral wall of the well cellar excavation;
a first side member secured to the base member, and the first end member, the first side member configured to support a first longitudinal wall of the well cellar excavation; and
a second side member secured to the planar base member and the first end member, the second side member configured to support a second longitudinal wall of the well cellar excavation; and
a seal formed between a top surface of the planar base member and each of the first end member, the first side member, and the second side member;
wherein the first end member includes a first planar portion extending parallel to a first lateral surface of the planar base member, a second planar portion extending parallel to a first longitudinal surface of the planar base member, and a third planar portion extending parallel to a second longitudinal surface of the planar base member.