The aim of this thesis was to examine low cost water well drilling techniques and suggest a drilling technique suitable for future development to produce a water well drilling rig capable of producing very low cost water wells. This was carried out by designing a test model of a drive mechanism suitable for such a drilling rig, field testing the model and recommending necessary development to finalise rig design. The drive mechanism investigated provided a reciprocating action suitable for percussion drilling techniques. It is also shown that within the limitations of human power sufficient tooling capabilities to drill a variety of ground formations can be achieved. This showed the development potential of the mechanism to provide an effective hand-powered water well drilling rig.
Worth, M. A mechanism for percussion drilling of low cost water wells in developing countries. (1998) 63 pp. [MSc Thesis, Cranfield University at Silsoe]