«Environmental protection in oil and gas complex»

Drilling sludge disposal with getting building mixes components

UDC: 665.644-027.45
DOI: 10.33285/2411-7013-2023-3(312)-62-68

Authors:

¹ Ufa State Petroleum Technological University, Ufa, Russia
² Chelyabinsk State University, Chelyabinsk, Russia

Keywords: hardening composition, waste chemical reagents, drilling fluids, construction of oil and gas wells, drilling waste

Annotation:

Modern destructive methods of drilling sludge neutralization are widely used in oil and gas wells construction. The repeated use of spent drilling reagents for the construction mixture preparation, the disposal of by-products and production wastes will not only reduce the negative impact of the drilling enterprise on local biocenoses, but also save material resources. Currently, for solidification of drilling sludge, it is treated by hardning or encapsulating additives (NaCl, Na2CO3 and analogues). Some chemical reagents that have lost their chemical and technological characteristics can also be a part of hardening compounds formulation. A new technology of drilling sludge hardening (encapsulating) has been developed using spent drilling reagents and production waste as additional components of the construction mixture. The possibility of their use as additive to portland cement when manufacturing construction blocks has been proved.

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