Energy-saving resourceful treatment technology for drilling mud

Abstract

The invention relates to the technical field of drilling pollution treatment, especially to an energy-saving resourceful treatment technology for drilling mud. The treatment technology includes: high temperature tail gas waste heat recovery, mud drying treatment and high temperature ceramic solidification treatment of mud. The waste heat recovery operation is carried out in a waste heat recovery system, the mud drying treatment is carried out in a mud drying system, and the high temperature ceramic solidification treatment of mud adopts a dry mud high temperature ceramic solidification system. The waste heat recovery system, the mud drying system and the dry mud high temperature ceramic solidification system are three independent systems. The technology is simple, the traditional solid-liquid separation process is no longer used, treatment of complex sewage is no longer needed, an evaporation process is employed directly, and the core equipment is simple. The technology has the characteristics of zero emission and thorough harmlessness, and completely achieves zero emission of pollutants and harmless steam. Dry mud is sintered at high temperature into ceramic, and heavy metals are completely solidified and not dissolved. The technology realizes recycling, the ceramic obtained by high temperature sintering of dry mud is an available industrial raw material or a directly usable product.

Description

technical field [0001] The invention relates to the technical field of drilling pollution control, in particular to an energy-saving and resource-based treatment process for drilling mud. Background technique [0002] With the continuous improvement of my country's environmental protection laws and regulations and the strengthening of law enforcement, people's awareness of environmental protection has gradually increased. The research, promotion and application of the harmless treatment of waste drilling mud generated during the drilling process is the key to the environmental protection work of the drilling industry. It is imperative. The purpose of waste mud drilling mud treatment is to find an economically and environmentally acceptable treatment method in order to reduce environmental pollution, and to achieve the purpose of optimizing the waste treatment system. [0003] There are many recycling and treatment methods, but each method has its scope of application and sho...

AI Technical Summary

Problems solved by technology

[0004] Traditional treatment methods basically have a problem that economic benefits and environmental benefits cannot be balanced. If the treatment effect is good, the cost is too high; if the cost is low, the environmental protection requirements cannot meet the requirements.

However, methods such as reinjection into strata and soil cultivation have good environmental protection benefits, but their limitations are too large, and it is impossible to popularize them.

At the same time, the above method has certain requirements for the mud system, and is not suitable for all waste mud treatment after drilling

Traditional treatment methods cannot completely avoid the harm of heavy metal elements to the environment, and are not universally applicable to different types of waste drilling mud

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