Evaluation of Hydrogeological Conditions, in the three Al-Mishraq Sulphur fields, northern Iraq
DOI:
https://doi.org/10.25130/tjps.v28i3.1426Keywords:
Al-Mishraq fields; Transmissivity; Hydraulic conductivity;Flow Net; Tigris River; Overburden layers; Productive layers.Abstract
This study included an assessment of the hydrogeological conditions of the Mishraq sulphur fields before production, by measuring groundwater levels in (11) wells in Mishraq-2 in 2021, as well as the information of wells obtained, which are (12) wells in Mishraq-3, (68) wells in Mishraq-1. Groundwater levels ranged between (187.71-205.80) m in Mishraq-1, while in Mishraq-2 it ranged between (189.19-196.26) m, as for Mishraq-3 the levels were between (186.4-194.98) m.
The contour maps were drawn for the movement and levels of groundwater, showing that the direction of groundwater movement in Mishraq field-1 is from the west and northwest to the east, with a slight slope towards the southeast, towards the Tigris River, while in the Mishraq field-2, we notice that the direction of groundwater movement is From the east to the west, that is, toward the Tigris River, as for Mishraq field-3, it was found that the direction of movement is from the southeast toward the northwest, that is, toward the Tigris and Great Zab rivers. So it can be said that the Tigris and Great Zab rivers are the two drainage areas in these three fields. The hydraulic properties were analyzed in (44) wells in the three Al-Mishraq fields. Where the values of Transmissivity (T) in Mishraq field-1 ranged between (24.4-1557.5) m2/day, as for Mishraq-2 it ranged between (23-96.91) m2/day, while in Mishraq-3 it ranged between (10.5-4002) ) m2//day, and the hydraulic conductivity (K) ranged between (0.26 -14.68) m/day in Mishraq field-1, as for Mishraq-2 it ranged between (0.7-4.2) m/day, while in Mishraq-3 It ranged between (0.37-119.09) m/day.
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