FORMATION PACKERS  (SHALE TRAPS)

STANDARD TYPE

The formation packer or shale trap is molded to fit snugly over PVC or steel liner

casing. A stainless steel adjustable clamp is used to secure the formation packer

to the pipe. This all stainless steel clamp is included in the below pricing. The top

 portion of the cup is funnel shaped which allows it to function equally efficient in

a wide range of hole diameters. The special compounded rubber is engineered

for maximum elasticity which permits the funnel shape to compress into the smaller

 well bores without creating over-lays or folds in the rubber which could allow leakage

 or by-pass. It was also developed with a maximum strength characteristic which permits

 the cup to support above average static heads. The packer may be used for a number of applications

 such as a cavings catcher, cement slurry retainer for grout work or as a bad water seal. It can be

 installed on the liner pipe at the well site as a single sealing unit; however, if extremely bad wall

 conditions exists in the well, it is advisable to install three or more shale traps on the liner pipe at

 approximately two foot intervals.

 SPECIAL MONITORING GRADE FORMATION PACKERS

The Type BG Silicon based rubber formation packers are designed and manufactured for sensitive

 monitoring hole requirements. The special treated silicon based rubber compound is free of toxic materials

 and molded in a special section of the manufacturers’ plant to help ensure a clean hole for sampling. The

 rubber compound has been tested by an independent lab and lab reports are available. These BG Monitor

 Packers are not a Denver stock item and will be shipped direct to you from the factory.