Abstract:
A method of treating a hydrocarbon-bearing formation including receiving data comprising a temperature and a brine composition of the hydrocarbon-bearing formation; selecting a treatment composition for the hydrocarbon-bearing formation comprising a fluorinated polyurethane and solvent, wherein, at the temperature, a mixture of an amount of the brine composition and the treatment composition is transparent and free of precipitated solid, and wherein the mixture does not separate into layers; and contacting the hydrocarbon-bearing formation with the treatment composition. Another method of treating a hydrocarbon-bearing formation includes contacting a limestone formation with a treatment composition comprising a fluorinated polyurethane and solvent. Hydrocarbon-bearing formations treated according to the method are also disclosed. A composition comprising a fluorinated polyurethane and a combination of solvents is also disclosed.
Abstract:
Provided herein are inter alia novel compositions and methods having application in the field of enhanced oil recovery. In particular, the Gemini compounds disclosed herein and mixtures thereof presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs
Abstract:
Described herein are methods and system that use electromagnetic heating to heat wellbores and the fluids therein. The heating is achieved by placing one or more permanent magnets in the wellbore and moving a metallic component and/or the one or more permanent magnets relative to each other. This generates eddy currents in the metallic component, which heat the metallic component. This heat is transferred to the fluids in the wellbore from the metallic component by convection.
Abstract:
Disclosed herein is a method for fracture diagnostics by the use of electromagnetic transmitters and receivers in or near the borehole and an electrically conductive proppant. Injecting an electrically conductive proppant into a hydraulic fracture transforms it into highly conductive fractured volume in a rock medium of relatively low electrical conductivity. The highly conductive fracture can be easily separated from the background rock matrix due to the large electrical conductivity difference. The fracture can be excited through electromagnetic radiation by use of (a) transmitting antenna(s) in, above or immediately outside the borehole and will then be able to communicate with (a) receiver antenna(s) in, above or immediately outside the borehole. Using the principles of electromagnetism to analyze the simulated communication patterns between the fractured antenna transmitters and receivers, the length, height and orientation of the hydraulic fracture may be determined.
Abstract:
Methods of fracturing a hydrocarbon formation are described herein. A method may include propagating one or more first fractures from a first wellbore in the hydrocarbon formation, allowing a selected period of time to elapse so that at least a portion of the first fractures close, and propagating at least one second fracture in the wellbore or a second wellbore after the elapsed selected period of time.
Abstract:
Described herein are methods and system that use electromagnetic heating to heat pipelines, flowlines and the fluids therein. The heating is achieved by placing one or more permanent magnets in the wellbore and moving a metallic component and/or one or more permanent magnets relative to each other. This generates eddy currents in the metallic component or the pipeline wall, which heat the metallic component or pipeline wall and the fluids therein. The relative motion between the magnets and the metallic component is driven by the fluid pressure that drives the pig through the pipeline.
Abstract:
The present invention includes compositions and methods for using an anionic surfactant composition for treating a hydrocarbon-bearing formation or a reservoir, of formula (I): (Formula (I)) wherein R 1 and R 2 are identical or different and may independently be alkyl, alkenyl, alkynyl, alkylene, aryl, propylene oxide, ethylene oxide or hydrogen groups in a straight or branched chain with 16 or more carbon atoms, X 1 and X 2 are identical or different and are selected from the group consisting of phosphate, sulfate, carboxylate, sulfonate or other suitable anionic groups, S is a spacer group selected from short or long arkyl, alkenyl, alkynyl, alkylene, stilbene, polyethers, and other suitable aliphatic or aromatic groups comprising 2 to 12 carbon atoms.
Abstract:
A method for treating an oil-bearing subsurface formation is disclosed that includes providing one ore more acid soluble materials into a wellbore in the oil-bearing subsurface formation. The wellbore may include a plurality of first perforations in the wellbore that have been used to form first fractures emanating from the wellbore in the formation. The acid soluble materials may be used as a diverting agent to form plugs in exisiting perforations in the wellbore. The plugs may inhibit fluid flow through the exisiting perforations. The plugs may be removed at any time desired by providing an acid into the wellbore or by incorporating a delayed source of acid in the diverting agent.
Abstract:
Methods of treating hydrocarbon containing formations are described herein. A method for treating a mudstone formation includes providing a substantially horizontal or inclined wellbore to mudstone formation; providing acid to the portion of mudstone formation such that a size of the fractures is increased; and allowing hydrocarbons to flow through the fractures.