Practical Alternative Microwave Technology to Enhance Recovery Heavy Oil in Reserviors
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a technology of heavy oil and microwave energy, which is applied in the field of extraction of heavy oil, can solve the problems of increasing reliability, reducing maintenance in the long run, and limited maneuverability, and achieves the effects of reducing the viscosity of tar sand, and heating up the trapped water embedded in tar sand or oil shale very quickly
Inactive Publication Date: 2016-02-25
NGUYEN TIEN H +1
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[0019]Using Circular Waveguide open-ended radiator is capable of producing very strong radiation energies needed to heat tar sand and oil shale in deep reservoirs. This approach decreases the viscosity of the tar sand or oil shale in the absence of oxygen and causes trapped oil in the tar sand to flow much more quickly than current steam injection process. It also heat up the trapped water embedded in tar sand or oil shale very rapidly.
[0020]Circular Waveguide is the ideal technology hardware to
Problems solved by technology
In fact, it is design for a long term use, increases reliability and decreases maintenance in the long run by having less radiating devices or attachments.
One of the challenges is to have a heating and recovering system that has the flexibility
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[0027]It is understood that the frequency at 2.450 Gigahertz is where the water resonates and absorbs highest microwave radiation energy at microwave frequency spectrum; heating water to boiling temperature in order to break down heavy oil in reservoir. It is also understood that the tar sand and oil shale have certain permittivity and attenuation values at microwave frequency that significant enough to absorb microwave power heating up the hydrocarbon and breaking down heavy oil viscosity to lighter viscosity. This invention is focus on these ideas and developed a practical alternative microwave enhancement method for better recovery in heavy oil reservoirs from tar sand and oil shale in deep reservoirs, much cleaner and friendlier for earth environment.
[0028]FIG. 1 shows the front view invention illustration of a microwave circular waveguide pipe 1 and a production recovery pipe 2 inside of well borehole casing 5. Both pipes run from the above ground surface down into ...
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Abstract
Extracting of Heavy Oil (Hydrocarbon) from Tar Sand and Oil Shale in deep reservoirs 7,000-12,000 feet below the ground surface by using Circular Waveguides Technology and Microwave Energy High Power System. Using Circular Waveguides as microwave energy radiator connects to the Microwave High Power System is the most practical method and provides a relatively cost-effective means of extract heavy oil from target Tar Sand or Oil Shale in deep reservoirs. This invention method can be applied for future new well bores that are in the plan to be drilled. It also can be used for existing un-use well bores that are being closed; waiting for cleaner new enhance oil recovery technology becoming available in order to reclaim of heavy oil without damaging the environment.
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CROSS REFERENCESU.S. Patent Documents[0001]U.S. Pat. No. 4,140,180 Feb. 20, 1979 Jack Bridges “Method For In SITU Heating Processing of Hyrocarbonaceous Formations”[0002]U.S. Pat. No. 7,091,460 B2 Aug. 15, 2006 Dwight Eric Kinzer, “In SITU Processing of Hyrocarbon-Bearing Formations with Variable Frequency Automated Capacitive Radio Frequency Dielectric Heating”[0003]U.S. Pat. No. 0,173,488 A1 Jul. 9, 2009 Ravi Varma, “High Power Microwave Petroleum Recovery”[0004]U.S. Pat. No. 8,720,549 B2 May 13, 2014 Dwijen K. Barnerjee, “Process For Enhanced Production of Heavy Oil using Microwaves”[0005]U.S. Pat. No. 0,289,736 A1 Dec. 20, 2007, Peter M. Kearl and Donald L. Ensley, “Microwave Process For Intrinsic Permeability Enhancement and Hydrocarbon Extraction From Subsurface Deposits”[0006]US 2011 / 0114470 A1 May 19, 2011, Chang Yul Cha and Paul Gil Vergnani, “Process and System For Recovering Oil From Tar Sands Using Microwave Energy”FIELD OF THE INVENTION[0007]This invention relates to ex...
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