CENOVUS ENERGY INC. Patent applications |
Patent application number | Title | Published |
20150337208 | HYDROCARBON PRODUCTS - A hydrocarbon product having at least 0.1 grams per gram of hydrocarbon product having a boiling range distribution from an initial boiling point to approximately 739° C. wherein the hydrocarbon products are further characterized by an infrared spectroscopy reference peak, centered between approximately 1445 cm | 11-26-2015 |
20140251608 | SINGLE VERTICAL OR INCLINED WELL THERMAL RECOVERY PROCESS - The present disclosure describes a single well predominantly gravity-dominated recovery process for producing viscous hydrocarbons from a subterranean oil sands formation. The process operates a single vertical or inclined well within a formation, the wellbore having an injection means and a production means, the injection means being positioned in the wellbore closer to the surface than the production means. The process provides an area of high mobility adjacent the production means. A mobilizing fluid is injected through the injection means into the formation to mobilize the viscous hydrocarbons in the formation while substantially concurrently producing hydrocarbons through the production means. The gravity dominated process may be SAGD and the present process may be a single vertical or inclined well SAGD process. | 09-11-2014 |
20140251596 | SINGLE VERTICAL OR INCLINED WELL THERMAL RECOVERY PROCESS - The present disclosure describes a single well predominantly gravity-dominated recovery process for producing viscous hydrocarbons from a subterranean oil sands formation. The process operates a single vertical or inclined well within a formation, the wellbore having an injection means and a production means, the injection means being positioned in the wellbore closer to the surface than the production means. The process provides an area of high mobility adjacent the production means. A mobilizing fluid is injected through the injection means into the formation to mobilize the viscous hydrocarbons in the formation while substantially concurrently producing hydrocarbons through the production means. The gravity dominated process may be SAGD and the present process may be a single vertical or inclined well SAGD process. | 09-11-2014 |
20140216738 | BOTTOM-UP SOLVENT-AIDED PROCESS AND SYSTEM FOR HYDROCARBON RECOVERY - Solvent may be injected into a hydrocarbon reservoir at an increasingly elevated vertical level to allow vapor of the solvent to contact and mobilize viscous hydrocarbons in the reservoir, for producing mobilized hydrocarbons. Solvent may be injected into a mobile zone below a viscous hydrocarbon zone, to allow solvent vapor to ascend to mobilize viscous hydrocarbons in the viscous hydrocarbon zone. A vertical or slanted injection well may be used to inject the solvent into the reservoir, and a production well spaced horizontally apart from the injection well may be used to produce fluids from the reservoir. A bottom-up solvent-aided process may comprise injecting water and liquid solvent into the mobile zone, and then injecting heated water and solvent into the mobile zone. | 08-07-2014 |
20140203099 | ULTRASONIC PRODUCED WATER DISPERSION DEVICE, SYSTEM AND METHOD - An ultrasonic dispersion system for dispersing fluid collected from a wellbore during hydrocarbon production is disclosed. The system comprises a holding tank for containing a fluid collection; a fluid intake in communication with the holding tank for input of fluid collected from a wellbore; and an air intake in communication with the holding tank. An ultrasonic generator bank positioned in the holding tank for contact with the fluid collection is used for particlizing the fluid collection to generate an air/particle mixture with the air input into the holding tank. The ultrasonic generator bank comprises an ultrasonic source positioned below the surface of the fluid collection for particlizing at least a portion of the fluid collection; a power source for providing power to the ultrasonic generator bank; and an outlet in an upper region of the holding tank for exhausting the air/particle mixture from the holding tank. | 07-24-2014 |
20140202683 | ULTRASONIC WELLBORE DEWATERING DEVICE, SYSTEM AND METHOD - An ultrasonic device and system is provided for specific application to unloading non-gaseous production (typically mineralized water which may or may not be associated with produced solids and/or hydrocarbon liquids) from gas producing wells. In one embodiment, the system comprises an ultrasonic particle generator bank, including a transformer as needed (geometry of bank varies depending on down hole configurations) with multiple ultrasonic sources for redundancy/longevity and particle formation rate control. The multiple ultrasonic sources may be powered electrically from the surface, or by other means, with a length management conveyance system. The ultrasonic sources may be buoyed at substantially optimal depth below the surface of the non-gaseous production being particlized. | 07-24-2014 |
20130112392 | TEMPERATURE CONTROL IN AIR COOLED HEAT EXCHANGERS - A method, apparatus and system for temperature control of a fluid in an air cooled heat exchanger (ACHE). Certain embodiments may involve measuring a discharge fluid temperature of a fluid discharged from the ACHE, reducing a fan speed and at least partially closing an air intake and/or an air exhaust of the ACHE when the discharge fluid temperature meets a discharge fluid temperature criterion to reduce cooling of the fluid in a tube bundle of the ACHE, measuring a plenum chamber air temperature, and injecting heated air proximate the tube bundle when the plenum chamber air temperature meets a plenum air temperature criterion to avoid overcooling of the tube bundle fluid. | 05-09-2013 |
20120205096 | METHOD FOR DISPLACEMENT OF WATER FROM A POROUS AND PERMEABLE FORMATION - A method and system for displacing water from a porous geological formation are provided. The zone to be displaced is defined by the injection of water into one or more barrier wells around the zone. One or more gas injection wells and water production wells are located within the zone. During pressurized gas injection within the zone, the barrier wells are operated to achieve a hydraulic pressure barrier surrounding the zone that is sufficient to prevent penetration therethrough by the injected gas. The well system is operated to concurrently limit gas entry into the water production well. Accordingly, the gas displaces water downward within the zone such that water is produced at the water production wells. | 08-16-2012 |