Methods of Well Construction Complication, Design and Developing for Sixteen Observation and Test Wells at the Eight Locations of Zarange District, Nimroz, Afghanistan

Year 2022, Volume: 4 Issue: 3, 426 - 448, 30.12.2022

Hafizullah Rasoulı

Abstract

This research has been conducted for construction, design, developing and observation of sixteen wells in center Zarange of Nemroz Province. For drilling of these well we used cable tool ridge “drilling Rotary by mud”. The aquifers of Nimroz are located prolonging of rivers and its tributries. Most of the aquifers have been made with different sizes of sediments (sands and gravels). Near to slop and mountains, generally we can find big size and far from sources at the plain areas smaller sizes of clay, silt and sands. In this research we found different formations of stratigraphy in well profile is consisting different layers like sand, boulder, silty clay, gravel, sand, clay with gravel, clay, clay with gravel and clay silt with gravel. Generally, the aquifers belong to bigger sizes of sands and gravel, we used PVC of blank pipe and for filtering water used filter and gravel pack. This research is therefore essential to study the different layers in well profile of groundwater aquifers, with no or scarce previous research’s in this section of well design. The challenges that we faced during this research are; absence of research in this area and lack of geological equipment.

Keywords

Groundwater, Well construction, Drilling, Well development, Gravel pack

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