seen from Saudi Arabia
seen from Philippines
seen from United States
seen from China
seen from China
seen from South Korea
seen from India
seen from China
seen from Venezuela
seen from Netherlands
seen from Kyrgyzstan
seen from Philippines
seen from Malaysia
seen from Pakistan
seen from United States
seen from China
seen from China
seen from Netherlands
seen from China
seen from Singapore
Cand e necesara ? Atunci cand depunerile de nisip de pe fundul unui foraj (din decantor) sunt atat de multe incat ajung in dreptul filtrelor, le obtureaza pe acestea din urma si scade debitul forajului si/sau apar particule de nixip / depuneri in apa pompata din foraj.
Lucrarile de denisipare reprezinta de fapt efectuarea intretinerii –mentenantei forajului. In cursul exploatarii puturilor in mod natural se produce acumularea de nisip la partea de jos a forajului – in decantor.
