[ Analyse de la procédure de forage d’eau en milieu sableux: Cas du quartier Mpasa 2, commune de la Nsele à Kinshasa ]
Emmanuel KILABI MANGWENO1
1 Chef de travaux, Institut Supérieur Pédagogique technique de Kinshasa, RD Congo
Original language: French
Copyright © 2026 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Potable water supply remains a critical issue in the peri-urban areas of Kinshasa, particularly in the Mpasa 2 district (Nsele municipality), which is characterized by unconsolidated sandy formations. This study investigates the technical and geotechnical aspects of water well drilling in sandy environments, with a focus on borehole stabilization techniques and the hydraulic performance of completed wells. The methodology integrates field observations, grain-size distribution analyses, and interviews with drilling practitioners. Results indicate that inappropriate drilling and stabilization methods result in borehole collapse, tool loss, and diminished hydraulic efficiency. Based on these findings, best-practice recommendations are proposed to improve the sustainability and performance of future wells in similar geological settings.
Author Keywords: water well drilling, sandy formations, borehole stability, hydrogeology.
Emmanuel KILABI MANGWENO1
1 Chef de travaux, Institut Supérieur Pédagogique technique de Kinshasa, RD Congo
Original language: French
Copyright © 2026 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Potable water supply remains a critical issue in the peri-urban areas of Kinshasa, particularly in the Mpasa 2 district (Nsele municipality), which is characterized by unconsolidated sandy formations. This study investigates the technical and geotechnical aspects of water well drilling in sandy environments, with a focus on borehole stabilization techniques and the hydraulic performance of completed wells. The methodology integrates field observations, grain-size distribution analyses, and interviews with drilling practitioners. Results indicate that inappropriate drilling and stabilization methods result in borehole collapse, tool loss, and diminished hydraulic efficiency. Based on these findings, best-practice recommendations are proposed to improve the sustainability and performance of future wells in similar geological settings.
Author Keywords: water well drilling, sandy formations, borehole stability, hydrogeology.
Abstract: (french)
L’approvisionnement en eau potable reste un défi majeur dans les zones périurbaines de Kinshasa, notamment au quartier Mpasa 2, commune de la Nsele, caractérisé par un milieu sableux. Cette étude analyse les procédures techniques et géotechniques du forage d’eau en contexte sablonneux, évalue les méthodes de stabilisation du trou de forage, ainsi que les performances hydrauliques des ouvrages réalisés. Les investigations combinent observations de terrain, analyses granulométriques, et entretiens avec les foreurs. Les résultats montrent que l’utilisation de méthodes inadaptées conduit à des instabilités du trou, des pertes d’outil et une efficacité hydrique réduite. Nous proposons un guide de bonnes pratiques pour les futurs forages dans des milieux similaires.
Author Keywords: forage d’eau, milieu sableux, stabilité du trou, hydrogéologie.
