Supporting Technical Assessments

Install Water Control Devices by an asterisk. The ‘critical components’ are elements that are considered: high risk; infrequent; or critical to the natural flow of the task. The self assessment tool can also be used for challenge testing. Assessment Upon completion of training, assessment will be conducted with the related assessment package. DEFINITIONS Tapered Plug Tapered neoprene plug used as an interim water controlling device, has an R32 internal thread which requires installation with a drill rod with an R32 male tip. Packer Device which is installed into a drill hole for the purpose of controlling water and/or injecting a product into the hole. Standpipe Stand pipes are a steel pipe varying in length, generally from 2m to 4m, sometimes longer (depending on the application) and may vary in diameter typically from 60mm to 100mm.The stand pipes are used for the same purpose as mechanical packers, to control water. However having a water control device already installed prior to drilling, allows faster reaction times if high pressure water is intersected whilst drilling. The drill string can immediately be retrieved from the hole and the ball valve shut off. Symbols used in this document: Indicates a hazard or situation where failure to use the correct procedures COULD result in SEVERE PERSONAL INJURY OR EQUIPMENT DAMAGE Indicates a hazard or situation where failure to use the correct procedures COULD result in SEVERE PERSONAL INJURY OR POSSIBLY DEATH Indicates information within the text which is of particular importance to the operation or procedure being described Could result in serious injury or death TRAINING OVERVIEW Topic – Install Water Control Devices At the end of this topic you will be able to: ▪ identify water control devices (Packers) and installation methods ▪ understand grouting packers , their application, safe installation, removal, maintenance and storage

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