Selection of improvers for drilling sludges reclamation
UDC: 502.52:550.4
DOI: 10.33285/2411-7013-2023-4(313)-13-19
Authors:
SKIPIN LEONID N.
1,
PETUKHOVA VERA S.1,
TRETYAKOV PETER YU.1,
SKIPIN DMITRY L.2
1 Tyumen Industrial University, Tyumen, Russia
2 Tyumen State University, Tyumen, Russia
Keywords: drilling sludge, coagulants, phytomeliorants, capillary porosity, non-capillary porosity, aeration, rhizotorfin, oil destructor
Annotation:
Drilling sludge inherently includes the original part of the extracted sedimentary rock in combination with drilling fluid components. The contents of the drilling pits have extremely negative water-physical and physical-chemical properties, in particular high dispersion, hydrophobicity, floatability, low overall porosity, complete lack of aeration and filtration capacity with a high content of easily soluble salts, increased alkalinity, alkalinity and toxicity of anions and cations combined with increased osmotic pressure. Under these very harsh conditions vital activity of native plant species is almost completely limited. The above-said negative properties elimination is based on the theory of absorptive capacity, developed by K.K. Gedroits, followed by selection of the most effective ameliorant coagulants and salt tolerant crops. As a result of laboratory and vegetation experiments, the most promising coagulants were identified in the form of iron sulfate and aluminum, carnallite, gypsum, phosphoric gypsum, etc. A method of ameliorant-coagulant doses calculation using the filtering threshold is presented. The optimal option of drilling sludge reclamation presented, which includes use of phosphoric gypsum, rhizotorfin drug and oil destructor in combination with a bean component as a phytomeliorant is identified.
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