Call in an experienced environmental directional driller to install seven horizontal bio sparge wells for a bulk fuel terminal in Orlando, FL. The project managers enlisted the services of Directional Technologies, Inc. (DTI) to install the horizontal air sparge wells beneath the terminal’s refueling racks, parking lot, and office building. One horizontal remediation well was even installed beneath the highway adjacent the facility. All of this was completed without shutting down the road or disrupting operations at the terminal, which supplies the Orlando International Airport with its only source of jet fuel.

The seven horizontal bio sparge wells, with individual lengths between 400 feet and 640 feet, are part of a system designed to remediate petroleum contamination in the soil and groundwater beneath the facility. Each horizontal well is constructed of a 3 inch diameter HDPE pipe with a riser section and a screen section of varying lengths. The screens were placed at a depth of approximatley 35 feet below land surface. DTI completed the project using a “blind” installation technique that allows the wellbore to terminate in the subsurface at the end of the horizontal well screen. The seven horizontal wells were installed from a common starting point, where they will subsequently be plumbed into the on-site remediation system. The system will effectivley and efficiently reduce the contaminants beneath the terminal, eliminating the threat to the surrounding environment.

This project captured many of the benefits of horizontal remediation wells such as:

• no distribution of business activities
• very little site restoration is needed
• directionally drilled horizontal remediation wells can be installed right through the source
• fewer horizontal wells are needed as compared to vertical wells therefore less conveyance piping is required
• provides a much larger area of well screen in contact with the media which will produce a more efficient remediation process