Combustion tube, fire drive experimental device and method
An experimental device and combustion tube technology, applied in the direction of combustion method, burner, combustion type, etc., can solve the problems that the insulation material cannot eliminate heat conduction, the heating zone is too large, and the heat cannot be tracked and compensated in time
Active Publication Date: 2020-05-08
PETROCHINA CO LTD
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Problems solved by technology
Among them, the use of thermal insulation materials cannot completely eliminate the effect of heat conduction
In addition, the method of heating by wall surface resistance also has the disadvantages of not being able to track and compensate heat in time and heating partitions are too large.
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[0050] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.
[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application.
[0052] It should be noted that when an element is referred to as being “...
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The invention discloses a combustion tube and a fire flooding test device and method. The combustion tube comprises a combustion outer tube; a combustion inner tube disposed in the combustion outer tube, the combustion outer tube and the combustion inner tube forms a combustion annulus; a first end cover and a second end cover are respectively arranged at two ends of the combustion outer pipe; aninner pipe injection pipeline and an inner pipe output pipeline are communicated with the combustion inner pipe; an annulus injection line and an annulus output line are communicated with the combustion annulus; an inner tube temperature measuring element and an inner tube igniter arranged in the combustion inner tube; an annulus temperature measuring element and an annulus igniter arranged in thecombustion annulus; and an electromagnetic induction coil wind around the periphery of the combustion outer tube. The combustion tube can realize no temperature difference between the radial direction of the combustion inner tube and the outside and eliminate the heat conduction as far as possible, so that the combustion of the combustion inner tube achieves the effect of near thermal insulation.
Description
technical field [0001] The invention relates to the technical field of combustion oil layer experiments, in particular to a combustion tube, a fire flooding experiment device and a method. Background technique [0002] Heavy oil generally refers to crude oil with a viscosity exceeding 50 mPa·s and a relative density greater than 0.920 under formation conditions. The domestic proven heavy oil reserves amount to 1.3 billion tons, accounting for about 25%-30% of the total domestic oil reserves. Due to the high density, high viscosity and poor fluidity of heavy oil, the development effect of conventional water flooding recovery method is poor. Fire flooding technology is usually used to enhance heavy oil recovery. Among them, fire flooding is the abbreviation of oil recovery method of burning oil layer, which refers to the oil recovery method that continuously injects air into the formation through the gas injection well and ignites the oil layer to realize combustion in the l...
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IPC IPC(8): E21B43/243F23D5/00F23L7/00
CPCE21B43/243F23D5/00F23L7/00
Inventor 李秋易雷浩唐君实郑浩然关文龙蒋有伟周久宁牛加丽沈熙尧王晓春
Owner PETROCHINA CO LTD