Horizontal Wells

Horizontal Remediation Wells use horizontal drilling technology to remediate contaminants in soils and groundwater.  It is usually a cheaper, more efficient, less intrusive and more sustainable (less energy, lower carbon footprint) alternative to excavation and landfilling.    Horizontal wells are effective with treatments such as air sparging, ISCO, stabilization, bioremediation,  thermal, dual-phase extraction and other in-situ technologies and lead to expedited site closures.  The table below gives a sample of the variety of sites closed by DTI using horizontal well technology. 

 

Contaminant

Site Type and Location

Technology

Regulatory Status

Petroleum

JFK Airport

HRW-Air Sparge

Closed

Petroleum

Tank Farm,

Big Flats, NY

HRW –Air Sparge

Closed

TCE

Manufacturing Plant, Ashville, NC

HRW-SVE/Air Sparge

Closed

TCE

Beneath Building,  MA

HRW-Air Sparge

Closed

Transformer Oil

Industrial Area, MA

HRW-Air Sparge

Closed

Jet Fuel

Air Force Base, NY

HRW-Air Sparge

Closed

PCE

Dry Cleaner, MD

HRW-Blind Injection Wells

Closed

Gasoline

Submarine Base, CT

HRW-SVE

Closed

Arsenic

Factory Site, NJ

French Drain

Closed

PCE

Dry Cleaner, VA

HRW-SVE

Closed

Gasoline

Gas Station, FL

HRW-Air Sparging

Closed

Diesel

Private Residence, CT

Liquid Ring Extraction

Closed

Chlorinated Solvents

Chemical Plant, NJ

HRW-Air Sparge

Closed

Transformer Oil

Transformer Station, CT

HRW-SVE

Closed

Horizontal drilling technology is a proven technology that has been used in the oil fields for years.  The advantages of horizontal wells for subsurface injection parallel to the  are manifold: (1)  Horizontal wells permit better contact of the remediation treatment than verticals wells, (2) there is a large zone of influence created by horiozntal wells and (3) there are cost savings.

DTI also has to opportunity to deliver such treatments as surfactants, oxidants, and nanoparticles such as zerovalent iron (ZVI) thru horizontal wells.

DTI  has been implementing horizontal drilling projects for environmental clients for the past 20 years.  Our clients and partners include environmental consultants, Fortune 500 companies, federal agencies, and small businesses.   Please call us at (203) 294-9200 or email drilling@directionaltech.com for more information.