Oil well waste oil and waste gas recycling power generation method and device

Abstract

The invention provides an oil well waste oil and waste gas recycling power generation method and device. A waste oil and waste gas emptying and diffusing device and a collecting device of an oil fieldare changed into the oil well waste oil and waste gas recycling power generation device through a flare or an air bag. The recycling power generation device comprises a matched gas storage separatingdevice, a fuel cell, an external combustion engine and an internal combustion engine, and a waste gas washing device and a smoke dust collecting device are additionally arranged; the advantages of utilizing offshore platforms and offshore oil fields closed to seawater are provided, so that the seawater is utilized for gas washing and salt boiling to collect seawater salinity; noble metals such asgold, platinum and palladium in burning soot are all recycled; and the method and the device have the beneficial effects that waste oil and waste gas of the oil field are directly classified and recycled nearby, the waste heat is comprehensively utilized, the waste is reduced, and the well-known pollution to environment caused by the emptying and diffusing device is reduced.

Description

technical field [0001] The invention belongs to the fields of petroleum and natural gas development and utilization of three wastes, and in particular relates to a method and equipment for recovering chemical energy and heavy metals from oil well waste oil and gas to generate electricity. Background technique [0002] Commonly used oil and gas field waste gas and waste oil treatment methods in the known technology are generally burned by torch. According to actual observations, torch combustion still produces a large amount of waste smoke and dust to pollute the air. Moreover, when the oil itself is high-sulfur oil or the natural gas in it is difficult to use, the combustion will also produce a large amount of gas pollutants, especially in the Bohai Bay The oil field waste oil in the oil field also contains more than 1ppm of gold, which will be enriched in the soot after incineration. If it is directly incinerated according to the oilfield torch combustion method of the kno...

AI Technical Summary

Problems solved by technology

The smoke and dust produced by combustion are directly discharged into the atmosphere to form pollutants and form inhalable particulate matter, which is not conducive to environmental protection

[0003] For waste gas and waste oil treatment, the first feasible idea is to directly collect waste gas and waste oil, such as the oil well waste gas recovery device provided in the comparative document CN200910014278.3, but considering that many offshore oil drilling platforms are located in remote locations, if the gas collection bag is directly built, Or its equivalent large storage tank, then the volume of the platform will be increased, the storage tank is directly collected, and the construction cost is high

If there are components with low melting point or easy to decompose into solid phase in the oil and gas, the pipeline will be blocked after compression, and the maintenance of pipelines and storage tanks will also bring high costs

Moreover, oil and gas fields in the South China Sea and the Caribbean Sea are often affected by tropical storms. Once the storage tanks and skins leak, it will bring potentially devastating environmental risks. Therefore, this solution has certain limitations.

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