This paper presents the development of a new method of water cut-off,
addresses shortcomings of previously developed counter-measures, and
minimizes cut-off area and time. The main features and considerations include: the ability to
insert and unfold its wing-like device to block the water flow;
can be applied to large-diameter pipes and to pipes of various diameters with one device;
minimizes working area (2-4m);
simple and easy to insert into pipes;
applicable in high pressure (up to 20 kg/cm<sup>2</sup>) pipes; and,
minimum water cut-off time (less than 2 hours).
Case studies of two existing facilities are profiled, and future plans are listed. Includes 4 references, tables, figures.
| Edition : | Vol. - No. |
| Number of Pages : | 35 |
| Published : | 06/01/2007 |
