Abstract: An apparatus, system and method are provided for isolating a portion of a tubing string in a hydrocarbon well. The portion of isolated tubing string can be used to set a packer or test tubing integrity hydrostatically. The apparatus includes a dissolvable valve that is installed in a nipple and positioned below the portion of tubing string. The dissolvable valve includes a ball seat for receiving a dissolvable ball. When the dissolvable ball is dropped into the tubing string and seated on the ball seat of the dissolvable valve, the portion of tubing string is isolated from a second portion of tubing string below the nipple. Wellbore fluids in the hydrocarbon well dissolve the dissolvable valve and the dissolvable ball to leave behind a nipple without any restrictions.

Abstract: An apparatus, system and method are provided for isolating a portion of a tubing string in a hydrocarbon well. The portion of isolated tubing string can be used to set a packer or test tubing integrity hydrostatically. The apparatus includes a dissolvable valve that is installed in a nipple and positioned below the portion of tubing string. The dissolvable valve includes a ball seat for receiving a dissolvable ball. When the dissolvable ball is dropped into the tubing string and seated on the ball seat of the dissolvable valve, the portion of tubing string is isolated from a second portion of tubing string below the nipple. Wellbore fluids in the hydrocarbon well dissolve the dissolvable valve and the dissolvable ball to leave behind a nipple without any restrictions.

Abstract: A system and method for collecting responses to assessment or survey items utilizes an input device to store individual responses to items of an assessment or a survey. The input device transmits the individual responses to a receiving unit for storage and analysis. The responses can be transmitted immediately upon completion of an assessment or survey item, at predetermined times during the collection of responses, after a predetermined period of user inactivity or upon completion of a predetermined group of assessment or survey items. The input device can also store a collection file containing all the responses and transmit the collection file after completion of the assessment or survey. The system and method can also utilize a locating device to determine an initial location of an input device and to monitor the current location of the input device during completion of the assessment or survey to detect and deter cheating.