Utilization of drilling cuttings with extraction of ground for recultivation of disturbed soils

Gaevaya, Elena; Bogaychuk, Y E; Tarasova, S. S.; Skipin, Leonid; Zakharova, Elena

doi:10.1088/1755-1315/87/4/042003

Cited by 1 publication

(1 citation statement)

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“…A sludge barn is a construction as a part of a well pad intended for centralized collection of oil well drilling waste (drilling mud, waste drilling agent and drilling waste water) in order to prevent the ingress of harmful substances into the environment. Sludge barns occupy an area of up to 2500 m 2 with one drilling rig and have a different volume depending on the number of wells on the bush, depth and duration of drilling [Gaevaya et al 2017a, Skipin et al 2014.…”

Section: Introductionmentioning

confidence: 99%

The Environmental Impact of Drilling Sludge and Ways of Their Utilization

Gaevaya¹,

Tarasova²,

Bytsko³

2019

J. Ecol. Eng.

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Drilling sludge formed in the process of drilling wells using a drilling agent on a hydrocarbon basis looks like soft pasty mass of black color, with a distinct smell of petroleum products. Oil-based drill sludge has a high oil and chloride ions content, identified excessive concentrations of chromium 2.67 times. According to the degree of accumulation of heavy metals, that were distributed in the following order: manganese (Mn) > zinc (Zn) > copper (Cu) > chromium (Cr) > lead (Pb) > cobalt (Co) > arsenic (As) > mercury (Hg) > cadmium (Cd). The results of the particle size distribution indicate a significant proportion of physical clay, which peaks for the silt fraction-63.60 %. During the study of the waste drilling agent was found that it includes oil products which reached level of 9000 mg/kg, while the hydrogen index refers to a neutral medium-6.5 pH. The evaluation of the toxic effect of drilling waste according to the test-results has an acute toxic effect on the environment (hazard class IV). The significance of the research indicates the relevance of environmental assessment of drilling waste for the optimal choice of their subsequent disposal.

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Section: Introductionmentioning

confidence: 99%