Cenovus Energy Inc.

Other

Fccl Partnership

Michael Patrick McKay

Amos Ben-Zvi

Paulina Morasse

Simon D Gittins

Mayamin Binti Mohd Razali

Ishan Deep S Kochhar

Gyorgy Szekely

Suchang Ren

Methods are provided for sequestering a pollutant gas of carbon dioxide (CO) gas and/or hydrogen sulfide (HS) gas in a subterranean reservoir. In one method, a carrier gas containing pollutant-sorbent particles (e.g., nanoparticles) is pumped into the subterranean reservoir, the pollutant-sorbent particles attach to the subterranean reservoir, the pollutant gas is pumped into the subterranean reservoir, and the pollutant-sorbent particles attached to the subterranean reservoir adsorb the pollutant gas. In another method, pollutant gas is introduced into a carrier liquid containing pollutant-sorbent particles to produce a pollutant-rich carrier liquid, the pollutant-rich carrier liquid is pumped into the subterranean reservoir, and the pollutant-rich carrier liquid is allowed to remain in the subterranean reservoir. A modifier gas or modifier liquid may be injected into the subterranean reservoir to modify a condition in the subterranean reservoir and thereby cause the pollutant-sorbent particles to release the sequestered pollutant gas.

Methods for carbon dioxide or hydrogen sulfide sequestration in a subterranean reservoir using sorbent particles

A method is provided for producing hydrocarbons from a subterranean reservoir. A mixture of steam and HS-sorbent particles (e.g., nanoparticles) is injected into the subterranean reservoir. This may be performed during the steam phase of a steam injection operation, such as steam assisted gravity drainage (SAGD), steam flooding, or cyclic steam stimulation, which is performed on the reservoir. The injected steam reduces the viscosity of the hydrocarbons in the subterranean formation. The injected HS-sorbent particles attach to the subterranean reservoir and adsorb HS therein. The hydrocarbons are produced to the surface, without producing the HS-sorbent particles with adsorbed HS that remain attached to the subterranean reservoir.

Steam-enhanced hydrocarbon recovery using hydrogen sulfide-sorbent particles to reduce hydrogen sulfide production from a subterranean reservoir

Method for carbon dioxide or hydrogen sulfide sequestration in a subterranean reservoir via pumping using sorbent particles in a carrier gas

Methods are provided that facilitate the production of hydrocarbons from subterranean formations, involving the mobilization of an immobile heavy oil in situ by gravity displacement. In effect, heavy oil is mobilized by dense aqueous gravity displacement (DAGD), in a process that generally involves injecting a dense, heated aqueous injection fluid into the formation into an injection zone that is in fluid communication with immobile heavy oil. The injection well is operated so that the injection fluid mobilizes and displaces the immobile heavy oil, to produce an expanding upper zone of mobilized heavy oil amenable to production.

Dense aqueous gravity displacement of heavy oil

The present disclosure provides a process and system for treating a feed diluent to produce a retentate product that is enriched in a heavy diluent component. The process includes: applying the feed diluent to a feed side of an organic solvent nanofiltration membrane; causing the light diluent component in the diluent to preferentially pass through the membrane in comparison to the light diluent component in the feed diluent; and producing the retentate product that is enriched in the heavy diluent component in comparison to the heavy diluent component in the feed diluent.

Process and system to separate diluent

There is disclosed an improved bracket and method for constructing a dock or deck over water on a rocky shore line or on a hard rock face. The present invention includes a base bracket structure having opposite first and second ends, the base bracket being mountable to the rock by a plurality of anchor bolts. A boom having opposite first and second ends is pivotally connected to the base bracket structure adjacent the first end of the angle brackets such that the boom can be set at an angle relative to the base bracket structure, the boom being configured to mount the deck or dock thereon. The improved structure further includes a support rod having opposite first and second ends, the first end of the support rod being pivotally connected to the base bracket structure. The support rod is coupled to the boom by a connector joint located on the boom at a point on the boom between the booms opposite first and second ends. The connector joint is configured to selectively adjust the angle of the boom relative to the base bracket portion such that the boom is substantially horizontal. The connector joint is further configured to fix the boom in place relative to the base bracket portion.

Growing community of inventors

Calgary, Canada

Michael Patrick McKay