Case study: Construction and performance of a total fluids extraction system utilizing horizontal wells installed using a bore and jack technique
- IT Corp., Austin, TX (United States)
Leakage from three 10,000-gallon xylene and stoddard solvent underground storage tanks have impacted subsurface soils and the shallow groundwater aquifer beneath a manufacturing building and other permanent structures. The client wished to voluntarily remediate the site but without revenue loss due to disruption of production and services. The solution was to access and remove the contamination by the use of horizontal extraction wells installed using the bore and jack technique. The bore and jack technique offers the following advantages over horizontal drilling: the jacked casing prevents the collapse of the borehole throughout completion, the technique requires no drilling fluid to maintain an open hole, pre-packed well screens can be installed to ensure uniform flow distribution to the well, and the vertical and horizontal borehole locations can be accurately predicted and assured. Nine 4-inch inside diameter (ID) stainless steel horizontal wells were installed beneath permanent structures. A total fluids extraction system was designed and connected to the wells to remove free-phase product, contaminated water, and soil vapors. In the first six months of operation, the remediation system removed approximately 1,500 pounds of vapor-phase volatile contaminants and removed and treated more than 545,000 gallons of contaminated groundwater.
- OSTI ID:
- 215567
- Report Number(s):
- CONF-951139-; TRN: IM9618%%251
- Resource Relation:
- Conference: 16. hazardous waste conference and exhibition: new frontiers in hazardous waste, Washington, DC (United States), 6-8 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of Superfund 16: Conference and exhibition proceedings. Volume 2; PB: 817 p.
- Country of Publication:
- United States
- Language:
- English
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