초록

The invention relates to a method and apparatus for filtering contaminated water from an oil or gas well.

대표청구항 ▼

The invention claimed is: 1. A recycling apparatus for recycling contaminated water from a well comprising:a holding vessel constructed to contain contaminated water from the well;a main tank constructed and arranged for holding filtered well water and having at least one opening to the environment

The invention claimed is: 1. A recycling apparatus for recycling contaminated water from a well comprising:a holding vessel constructed to contain contaminated water from the well;a main tank constructed and arranged for holding filtered well water and having at least one opening to the environment to allow air to freely transfer between the main tank the environment;an oil-water separator connected to the holding vessel and to the main tank;a pump constructed and arranged for transferring contaminated water from the holding vessel to the oil-water separator;a first filter assembly in gravity feed relation with the main tank, said first filter assembly having a first filter sheet; anda second filter assembly in gravity feed relation with the main tank, said second filter assembly having a second filter sheet having a filtration size of 10 microns or less, wherein said first and second filter assemblies are constructed and arranged such that during operation contaminated water is transferred to the oil-water separator where oil is separated from the water to form oil reduced water and the oil reduced water flow through the first filter assembly to form a first filtered water solution, the first filtered water solution from the first filter assembly filters through the second filter assembly to form a recycled water solution and drops into the main tank a second distance of from about 1 to about 30 inches before contacting recycled water solution in the main tank, wherein at least one of the first or second filter sheets comprising polyester.