Process and device for complete-collection anti-falling harmless treatment on well drilling waste

Abstract

The invention discloses a process and a device for complete-collection anti-falling harmless treatment on well drilling wastes. The process comprises three steps of complete-collection and gel breaking treatment on well drilling wastes, solid-liquid separation treatment and efficient and harmless solid-phase treatment. Due to complete-collection anti-falling harmless treatment on the well driving wastes of an oil-gas field, the defects that wastes cannot be completely collected, solids and liquids cannot be thoroughly separated, and treated well drilling wastes are hard to meet the requirements of minimization, harmlessness and cleaner production when other while-drilling anti-falling treatment processes and techniques in China and other countries are adopted can be overcome, the purpose of preventing a well site and a surrounding environment from pollution caused by the well drilling wastes can be achieved, and moreover due to skid-mounted modulation design, the device is simple in equipment structure, flexible and convenient to operate, small in space occupation and low in investment, the efficacy, the normalization and the convenience of complete-collection anti-falling harmless treatment on the well drilling wastes of the oil-gas field can be greatly improved, and popularization and application of an anti-falling harmless treatment technique for well drilling wastes can be facilitated.

Description

technical field [0001] The invention relates to a new technology for harmless treatment of oil and gas field drilling waste without falling to the ground, including a new process technology and a complete set of equipment that integrate waste without falling to the ground, gel breaking and destabilization treatment, solid-liquid separation treatment and harmless treatment . Background technique [0002] Drilling operations in oil and gas fields are a highly polluting industry, and the main sources of pollutants are waste mud, drilling cuttings and completion fluids. Waste mud is a complex multiphase stable colloidal suspension system with extremely complex components, mainly composed of clay, weighted materials, various chemical treatment agents, water, oil and cuttings. With the advancement of drilling fluid technology, especially the development of synthetic polymer chemistry, a large number of new synthetic polymers have emerged and used as additives for drilling fluids,...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to make up for the deficiencies of the existing technology and equipment, and a process and device for the harmless treatment of drilling waste without falling to the ground, so that the drilling waste can be fully collected without falling to the ground and harmless It overcomes the shortcomings of other domestic and foreign technologies such as incomplete collection of waste, incomplete solid-liquid separation, and difficulty in meeting the requirements of reduction, harmlessness and clean production of drilling waste after treatment.

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