US 12,305,118 B2
Proppant from captured carbon
Dallin P. Laycock, Houston, TX (US); Charlotte Plombin, Houston, TX (US); and Samuel K. Huisman, Houston, TX (US)
Assigned to CONOCOPHILLIPS COMPANY, Houston, TX (US)
Filed by CONOCOPHILLIPS COMPANY, Houston, TX (US)
Filed on Mar. 20, 2024, as Appl. No. 18/610,931.
Application 18/301,363 is a division of application No. 17/736,087, filed on May 3, 2022, granted, now 11,643,593, issued on May 9, 2023.
Application 18/610,931 is a continuation of application No. 18/301,363, filed on Apr. 17, 2023, granted, now 11,959,021.
Claims priority of provisional application 63/201,662, filed on May 7, 2021.
Prior Publication US 2024/0271035 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C09K 8/80 (2006.01); E21B 43/267 (2006.01)
CPC C09K 8/805 (2013.01) [C09K 8/80 (2013.01); E21B 43/267 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of sequestering carbon and producing hydrocarbon, said method comprising:
a) introducing a first fractured fluid (FF) through at least one well into an underground formation at a pressure greater than a minimum in-situ rock stress to form fractures (FR) in said underground formation;
b) introducing a second FF containing a carbon nanotube material (CNM) proppant through said at least one well into said underground formation to prop open said FR and thereby sequestering carbon in said underground formation;
c) said CNM proppant made by:
i) capturing CO2 from a gas or liquid;
ii) reacting said captured CO2 with electricity or heat or both to produce CNM;
iii) sonication and/or filtration of said CNM;
iv) optional shaping said CNM by vacuum forming or molding or agglomeration;
v) said CNM having:
(a) a crushing rate of <10% at 28 MPa,
(b) a bulk density of 1.5-2.5 g/cm3,
(c) a size of 0.1-2 mm, and
(d) a porosity of 30-50%;
vi) size sorting said CNM to produce a proppant having a size range between 20 to 40 mesh; and
d) producing hydrocarbons from said at least one well.