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Ita Sohin Multichannel Tubing Seals & Packers .A multilevel well that uses a continuous length of The CMT tubing can he sealed in dace with sand and multichannel tubing has the advantage over other bentonite lavers in the usual manner using a trernie pine muitileveis in that there are no icints. 1 pis significantly or with the Solinst Mini Sand Bentonite iniec-or, Mode: reduces the cost of installing wells and at the same time 561M. if the appiication is in loose sands. direct burial increases the reiiaoflity of the system. 1 ne CMT tubing can be used, allowing the sand to ceilapse arouna the is very simpie and convenient to Lse, as it gives full tubing. P-e-packed bentonite seals are also available :lexibiiity as to where monitoring zones are located,and which have bentonite pellets inside a 'plastic mesh, so length ngth of ubing can Ice used for a number or well that they can be slipped onto the tubing and then installations. It `las a ridge down its entire 'length to clamped quickly in place prior to installation. allow for easy ieentification of specific channels. Ports and packers can 'oe assembled onto the tubing in the field, immediareiy after drilling,to reduce open hole time ind potential cross-contamination between zones. h �t wi Pear Aew,i --AT Tuning - _'�-./• ?re-packed 3enronue Packer .Double-Acting Packers �iaae - Double-Acing inflatable Packers` are ideal for use in sttuaricns where a CMT System is to be put '.nide an ^ existing casing, or in a smooth rock borehole nd wnert x' Pon rnet Holes i removal or the system for decommissioning -eu<_e is X� I important. io Double Acting Packers nave a rubber gland or.;he inside as well as the outside. Both glands inflate and deflate at Poivetliviene I I the same time. When a vacuum s applied to a paciken ,.i Melt Seat - the inner gland retracts and the packer slides easily into =oam Plug I position on the CMT tubing. Air gent Hole The vacuum is then released so that the pacxer grins onto the tubing and a clamp top and bottom ensures ' that the packer does not shift position during instailarion. To creare a port: cnannei a seaiea; holes are drilled into he tubing and covered?y a stainless steel screen or Pre-Packed sand panto. Kc Pow -he number ani vocation or crts may oe ceiermined in advance of drilling, or arter coring, toles ar., drilled in = vertical ;ine into a given channel at a -oecneiJ iepth according to the zone to be monitored. ror.-ntrg a ^ort. ne-panne:is seated with a.olyethviene Natant oeiow ' the port openi-�gs and a vent hole is lert iusi below the W �* seal to allow ai:tc escape as the system is lowerec into .b. the role. Infladn;the A sminiess steel mesh is fixed in place over the port to =pplyin;a Sliding the packer Double-Acting vacuum into position Packers prevent fines from enterrig, or pre-packec sang packs are clamped onto the tubing over the hoies. 'he screen The packers are ccrnnected in line with flexible inflation kits come in a variety of mesh sizes, complete with tubing, and after installation into the well an inflation clamps, hot melt polyethylene glue and plugs. vessel is filled with water and an air source is used "ach channel is sealed at the 'oottom to prevent cross hydraulically inflate the packers. contamination. and a vent hole is cut into the c`annei Systems using Double Acting Packers can easiiv be jus: below -he port. This allows water from the removed and the packers used eisewhere or in some monitoring zone to fill the channel beicw the zonecases the system may be repositioned so that the port avoiding buoyaneJ. are located at different depths within the same well. Patents Pending High Quality Groundwarer Monitoring Insn-umentation Irlst i�