METHOD OF NEUTRALISATION OF WASTES OF OIL OR GAS WELL DRILLING Russian patent published in 2010 - IPC C05F1/00 

FIELD: oil and gas production.

SUBSTANCE: method involves separation of drilling sludge from drilling fluid circulating on the course of drilling and storage of drilling sludges in sludge pits, drilling sludge is process to yield a sludge semi-product wherein a humic and mineral concentrate is includes as the composite mixture modifier with the territory of all the ground mining for placement of the products being neutralised returned to land circulation. The sludge pits are arranged in the form of several temporary operative pits arranged in parallel; in each of them sludge is directed during drilling through different strata of rock that are successively subject to penetration with the help of drilling tools. A technological post is arranged for preparation of the commodity product in the form of several parallel basins; in each of them alternating ameliorant maturing is organised.

EFFECT: creating a technology enabling production of organic mineral substances based on drilling sludges that ameliorate granulometric and physical-and-chemical composition of damaged lands, enhance their agricultural performance and exclude the necessity to bury drilling sludges.

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