Characterization of drilling waste from shale gas exploration in Central and Eastern Poland

Abstrakt

The purpose of this research was to determine and evaluate the chemical properties of drilling waste from five well sites in Central and Eastern Poland. It was found that spent drilling fluids can contain high values of nickel and mercury (270 and 8.77 mg kg−1, respectively) and can exceed the maximum permissible limits recommended by the EC regulations for safety of soils (75 mg kg−1 for nickel and 1.5 mg kg−1 for mercury). The heavy metal concentrations in the studied drill cuttings did not exceed the maximum permissible limits recommended by the EC regulation. Drilling wastes contain macroelements (e.g., calcium, magnesium, and potassium) as well as trace elements (e.g., copper, iron, zinc, and manganese) that are essential for the plant growth. It was stated that water extracts of drilling fluids and drill cuttings, according to anions presence, had not any specific constituents of concern based on FAO irrigation guidelines, the USEPA WQC, and toxicity values. X-ray diffraction analysis was used to understand the structure and texture of waste drilling fluid solids and drill cuttings. Analysis of the mineralogical character of drilling fluid solids revealed that they contained calcite, quartz, muscovite, sylvite, barite, dolomite, and orthoclase. Drill cuttings contained calcite quartz, muscovite, barite, dolomite, and barium chloride

Autorzy

M. Mikos-Szymańska
M. Mikos-Szymańska
Piotr Rusek
Piotr Rusek
Krzysztof Borowik
Krzysztof Borowik
Maciej Rolewicz
Maciej Rolewicz
Paulina Bogusz
Paulina Bogusz
Joanna Gluzińska
Joanna Gluzińska
artykuł
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Angielski
2018
25
36
35990-36001
otwarte czasopismo
CC BY 4.0 Uznanie autorstwa 4.0
ostateczna wersja opublikowana
w momencie opublikowania
2018-05-28
30
2,914
0
0