Supercritical hydrothermal combustion type multi-element thermal fluid generating device and method with safety guarantee
A multi-component thermal fluid and supercritical water technology, applied in the fields of fluid production, earthwork drilling, wellbore/well components, etc., can solve the problems of large smoke exhaust loss, excessive device volume, environmental pollution, etc., and achieve low design power , Strengthen the heat exchange effect, the effect of small investment
Active Publication Date: 2022-06-21
XI AN JIAOTONG UNIV +1
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Problems solved by technology
Conventional steam injection production technology has been very mature, but it still cannot solve the problems of serious environmental pollution, large smoke exhaust loss, limited applicable reservoir depth, and too large device volume for offshore heavy oil production.
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[0038] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings and examples.
[0039] like figure 1 As shown, the present invention is a supercritical hydrothermal combustion type multi-component thermal fluid generating device with safety guarantee, which includes a reactor 4 and an accident tank processing module, and optionally includes a cooling and pressure reduction module and a temperature and pressure regulation module.
[0040] The interior of the reactor 4 is composed of an upper combustion space and a lower mixing space that are communicated through the injection holes. The fuel undergoes a hydrothermal combustion reaction in the combustion space, and the reaction product enters the mixing space through the injection holes and is mixed with the mixing water. The multi-component thermal fluid, wherein the upper part of the combustion space is provided with a fuel return port. The fuel return port is prov...
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The invention discloses a safety-guaranteed supercritical hydrothermal combustion type multi-element thermal fluid generating device and method, which mainly includes a reactor, an emergency tank treatment module, a cooling and pressure reducing module, and a temperature and pressure regulation module. The use of two-stage fuel injection in the reactor effectively reduces the need for preheating, thereby reducing the power of the heater, thereby reducing the investment and operation costs of the supercritical hydrothermal combustion system; The cooling is more sufficient to reduce the water demand for cooling; the chain control of reactor temperature and pressure ensures the process effect and system safety; the reactor has a visual fire viewing hole, which can be used to observe the flame image in the reactor, and is used to guide supercritical hydrothermal Combustion experiment fuel volume and fuel concentration; the accident tank processing module is connected to the fuel pump safety valve and the reactor safety valve, which can perform overpressure protection to ensure the safety of the reactor and system operation.
Description
technical field [0001] The invention belongs to the technical field of supercritical hydrothermal combustion, in particular to a supercritical hydrothermal combustion type multi-component thermal fluid generating device and method with safety guarantee. Background technique [0002] The traditional mining methods of heavy oil resources, such as steam huff and puff, steam flooding, steam-assisted gravity drainage, etc., mainly increase the formation temperature, reduce the viscosity of heavy oil and increase the fluidity of heavy oil by injecting the hot steam generated by the ground steam injection boiler into the formation. , to achieve the purpose of enhancing the recovery of heavy oil. Conventional steam injection production technology is very mature, but the problems such as serious environmental pollution, large smoke exhaust loss, limited applicable oil reservoir depth, and too large device volume cannot be applied to offshore heavy oil production cannot be solved. Th...
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IPC IPC(8): E21B43/24E21B43/243
CPCE21B43/24E21B43/243
Inventor 王树众王大伟汪文哲李艳辉赫文强杨文海李紫成郑继涛
Owner XI AN JIAOTONG UNIV