A Method for Oil Exploitation Using Microwaves to Generate Steam

A steam and microwave technology, applied in the direction of mining fluid, earthwork drilling, wellbore/well components, etc., can solve the problems of large energy loss and increased cost, and achieve the effects of easy control, improved efficiency, and energy consumption avoidance

Active Publication Date: 2018-09-25
深圳宝联智汇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for producing steam by using microwaves disclosed by the present invention includes the following steps: A. setting a metal water pipe or a non-metal water pipe with a metal layer on the surface between the ground and the bottom of the oil well; B. placing the steam generator Installed at the bottom of the oil well, and transmit the microwave beam generated by the microwave generator to the steam generator at the bottom of the oil well; C. Install a reversible one-way valve at the bottom of the drill pipe; D. Guide the one-way valve Downward, spray water into the steam generator through the metal water pipe or the non-metal water pipe coated with a metal layer on the surface. When the water passes through the water vapor channel of the steam generator, it is heated by the microwave beam generated by the microwave generator to form steam; Spray to the oil layer through the output port of the steam generator; E. After the high-temperature steam acts on the oil lay...

Embodiment 2

[0023] The difference from Embodiment 1 is that the above-mentioned steam generator includes a heating section and a vaporization section, the heating section is a ceramic clamping tube close to the inner wall of the drill pipe, and the ceramic clamping tube includes a ceramic sleeve and a ceramic tube embedded in the ceramic sleeve , the outer wall of the ceramic tube is provided with a spiral groove, and the groove and the inner wall of the ceramic sleeve form a spiral channel. In this embodiment, the inner diameter of the upper part of the ceramic tube is larger than the inner diameter of the lower part, and the vaporization section is a bamboo-shaped The ceramic tube, the bamboo-shaped ceramic tube includes a ceramic partition plate, which divides the bamboo-shaped ceramic tube into several sections whose length gradually increases. The position of the through hole is different, and the transmission path of water vapor in the bamboo ceramic tube is increased, so that the wa...

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PUM

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/24
Inventor 吴智彪杨荣
Owner 深圳宝联智汇科技有限公司
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