IDENTIFICATION OF DRILLING WASTES AND THEIR USE

Abstract

The relevance of the study is caused by the need to solve environmental issues arising during the construction of oil and gas wells. Identification of wastes generated during the construction of wells and their use for the needs of the national economy are the urgent tasksnow. Mud recycling issues include: mud separation into dewatered solids (drill cuttings) and dispersed media (drilling mud); production of various types of raw materials from drill cuttings: drilling mud reuse. In order to intensify separation of drill cuttings from the solution, it is proposed to use magnetization. A schematic diagram of drilling mud cleaning using a magnetization unit is proposed. It was found that the magnetization of the drilling fluid helps accelerating the fallout of cuttings from the solution. We offer the technology for obtaining proppant from drill cuttings using associated gas for roasting and a mobile complex that functions directly in the field, on the deposits. The article provides a schematic diagram of a mobile unit for processing drill cuttings. The proppant, prepared from drill cuttings, is proposed to be used for hydraulic fracturing in the fields located in this area. The proposed developments for recycling drilling mud will allow solving the problem of waste management directly at the drilling sites, which will give a significant economic effect for drilling companies. The aim of the research is to evaluate the issues of drilling mud recycling;solve the issues of accelerated separation of cuttings from drilling mud using a magnetic field;to develop a mobile unit for processing drill cuttings using associated gas for proppant firing;to apply for an invention and obtain a patent on the developed technology for producing proppant from drilling waste. Objects: sludge obtained during the construction of wells for various purposes. Methods. A technology for accelerated separation of cuttings from drilling mud was proposed, a mobile universal complex was developed for the manufacture of proppant directly in the field. Results. The main ways of recycling drilling mud were determined, a device for magnetizing drilling mud was proposed. A mobile universal complex and associated gas were proposed to usefor proppant burning. The developed proppant production technology makes it possible to obtain significant economic and environmental benefits.

Keywords

• recycling of drilling mud
• magnetization
• mobile installation
• sludge
• proppant