NGUYÊN NHÂN SUY THOÁI GIẾNG KHOAN KHU VỰC CÓ THÀNH TẠO BỞ RỜI VÙNG ĐBSCL - ĐỀ XUẤT CÁC GIẢI PHÁP PHỤC HỒI NÂNG CAO HIỆU SUẤT GIẾNG KHOAN

Abstract

There is the high density of the rivers and canals in the Mekong Delta, but it is very lack of fresh water for domestic water supply due to the effects of salinity intrusion and acid water from the acid sulphate soils. Due to the fresh water demand all year around, there are thousands of high productivity drilled-well in operation in the Mekong Delta. The number of wells is increasing yearly according to water demand. However, the effects of salinity, acid, clay,… and chemical materials in the ground water causing the degradation of drilled wells.. The paper has identified the reasons for the degradation causing by the internal problems of well itself in the unconsolidated formation in Mekong Delta and provide the suitable scientific and technological solutions to improve the well-yield.