Steam injection technology method of high-temperature mixer generators

Abstract

A steam injection technique of a high-temperature mixer generator includes: a one-way gas injection valve is connected with the entrance of an underground oil layer; the fuel is ejected from a fuel nozzle and is mixed with the air entering through a high-pressure air nozzle and then is ignited by a high-pressure sparking plug so as to combust in a combustion chamber; before leaving the combustion chamber and entering a subsonic nozzle, the gas is mixed with the atomized water injected by a gasified water injector and then is accelerated by the subsonic nozzle so as to enter a buffer chamber for gasified mixing; the high-temperature composite gas after gasified mixing is injected into an oil layer in a high speed through a one-way gas injection valve from the buffer chamber; then a chemical drug injection device is used to inject the chemical drug into the well when the gas is injected into the well for chemical oil displacing; at the same time, the frequency conversion of a plunger pump motor is utilized to control the flow of a blister and make supplies at regular intervals, which are injected into the well after a gas bubble plug is formed with alternated gas section and bubble section, thus extending the oil-yielding time and achieving the aim of simultaneous and composite proceedings of gas oil extraction and chemical oil extraction.

Description

technical field [0001] The invention relates to a compound gas injection method for thermal recovery of heavy oil, in particular to a steam injection process method of a high-temperature mixer generator, which belongs to the thermal recovery technology for heavy oil in oilfield exploitation. Background technique [0002] At present, my country's oilfields have abundant heavy oil resources to be exploited. Conventional cold recovery methods are unable to recover heavy oil. Generally, high-pressure steam generated by surface boilers is injected into downhole oil layers for thermal oil recovery. However, there are still many problems in the existing steam injection thermal extraction technology, such as the use of boilers to generate steam with large heat loss, high energy consumption, high equipment and production costs, certain pollution to the environment, and low crude oil extraction efficiency, especially the entire injection device. Poor mobility, it is difficult to adap...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art, and to provide a steam injection process method for a high-temperature mixer generator. Gas flooding and chemical agent flooding technologies are integrated into one. It has the characteristics of compact structure, simplicity and speed, improved work efficiency, and energy saving. The injection of chemical agents can be adjusted at any time according to oil well geology and reservoir pressure changes. At the same time of mining efficiency, it can significantly save energy, reduce costs, and effectively solve the problems of existing technologies such as polluting the environment.

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