A Method for Oil Exploitation Using Microwaves to Generate Steam

Abstract

The invention provides a method for exploiting oil through steam produced by microwave. The high-power microwave is transmitted to a steam generator at the bottom of an oil well through a drill pipe inner tube and used for heating high-pressure water, so that the high-temperature and high-pressure steam is formed and injected into an oil reservoir. The provided method for exploiting the oil through the steam produced by the microwave has the beneficial effects that the high-power microwave is transmitted to the steam generator at the bottom of the oil well through the drill pipe inner tube and used for heating high-pressure water, and the high-temperature and high-pressure steam is formed and injected into the oil reservoir; and energy transmission losses of microwave beams in a metal pipeline are small, the steam is directly produced near the oil reservoir at the bottom, huge energy consumption for long-distance transmission of the steam is effectively avoided, heat insulation and preservation do not need to be conducted on the whole well, and the exploiting cost is reduced.

Description

technical field [0001] The invention relates to oil extraction technology and equipment, in particular to a method for oil extraction by using microwaves to generate steam. Background technique [0002] During the exploitation of heavy oil and shale oil, injecting high-temperature and high-pressure steam into the oil layer is one of the main processes for thermal recovery of heavy oil. However, the steam required by the current thermal recovery process is produced on the ground by large boilers, and then injected into downhole oil layers hundreds or thousands of meters through pipelines. The advantage is that no special device needs to be installed at the bottom of the shaft; but the disadvantage is that not only the energy loss during the transmission process is large, but also the cost is greatly increased because the entire shaft needs heat insulation. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior a...

AI Technical Summary

Problems solved by technology

The advantage is that there is no need to install special devices at the bottom of the shaft; but the disadvantage is that not only the energy loss during the transmission process is large, but also the cost is greatly increased because the entire shaft needs thermal insulation