Three 16" sewer mains (24" bores) were installed at a military base in Florida. The bores averaged 420' in length and the pipe was SDR-17 HDPE, which was butt fused. Depths ranged from 8' to 10' and guidance was provided by the walkover method. The bores were located in very sensitive areas alongside the base commander's residence, and other high-ranking officer’s residences.

Installed over 3,000 feet of conduit for power and communications purposes at the Disney/MGM Studios in Orlando. The project consisted of pulling (4) 6” conduits in single bores. This project had a very tight timetable and required seven day work weeks with all work performed only within specified night hours with daily restoration to impeccable condition since the work was in an area normally open to the public. Due to the large number of existing utilities and limited information about their location Ground Penetrating Radar was used to verify unknown obstacles. The project was completed ahead of schedule and we received a commendation from Walt Disney World for our performance.

Seven, 22" bores totaling 3,000 feet ranging from 75' to 550' were drilled for the installation of a 14" HDPE force main in St. Augustine, FL. These utility lines were installed at depths ranging from 4' to 8' along US 1 under intersecting roadways. Walkover guidance was used for the installations.

Over 3,000 feet of 4" and 8" welded rigid steel conduit was placed in a series of continuous bores at depths from 8' to 12'. Bores varied between 200' and 500' in length. At times, both 4" and 8" conduit was pulled simultaneously. One bore crossed Interstate 95 and a second bore was completed underneath an earthen on-ramp which was 25' in vertical height above the ground level at the point at which the bore crossed underneath.

Approximately 950' of 16" SDR-11 HDPE piping was installed underneath a wetland area to serve as a new force main line in Orlando. Guidance was provided by the walkover method.

Fourteen bores consisting of 10,000 feet of 8” HDPE conduit for a new reuse line were installed for the county along International Drive. The area was highly congested with pedestrian and vehicular traffic.

Two 16” HDPE casings containing (4) 4” and (4) 3” stainless pipes in each casing were installed at the Tampa International Airport. The bores extended 400 feet with each casing weighing over 28,000 pounds. The bores were guided through various critical utilities, including the FAA’s fiber optic communications cables. Each bore was terminated on the Aircraft Operational Area. Drilling operations were completed without effecting operation of the area.

Over 3,000 feet of 6” HDPE conduit was installed in Kissimmee, Florida. Bore lengths ranged from 50’ to 850’ and were completed using walkover tracking.

ENVIRONMENTAL APPLICATIONS

Two 240' horizontal wells were installed in continuous bores at the Department of Energy facility in Florida. The soil vapor extraction well was placed at 16' below land surface and the groundwater recovery well was placed at a depth of 26', directly below the SVE well. The 30' screened intervals were constructed of 4" inside diameter HDPE and were of a proprietary design constructed by the client. The shallow well was tracked via the walkover method and the deep well was installed using a wireline method. Baroid's biodegradable polymer drill fluid, Bio-bore was used during the boring process.

A 510' groundwater recovery well was placed at a 25' vertical depth at a hazardous waste site in South Carolina. Well material was Hydroquest brand slotted and filter wrapped HDPE which was joined using the heat fusion process. Guidance of the continuous borehole was accomplished with a wireline system. A mud motor and bent sub assembly was utilized to bore and steer in the rock formation. Wells were sealed from the screened interval to the surface with bentonite.

Three overlapping horizontal wells were installed at 14' below land surface in continuous boreholes at a manufacturing facility in Orlando, Florida. The 3 overlapping groundwater recovery wells created an effective screen length over 700'. Material was 4" schedule 80 PVC .010 slot with a natural sandpack. Guidance was performed by the walkover guidance method.

Five vapor extraction wells were placed at a depth of 6' in 5 continuous boreholes under three 200,000 gallon storage tanks at a Power Plant site in Florida. The 150' to 250' wells were installed using 6" galvanized metal screen which had welded connections. Guidance of three of the bores was accomplished using a wireless guidance system; the other two bores were tracked via the walkover method. Ground penetrating radar was used to assist in establishing borepaths due to significant underground obstructions. The wells are part of a steam injection remediation system. Development consisted of annulus agitation with water and drill mud breaking fluids in combination with pumping inside the well screen.

A 410' groundwater recovery well was installed at a Chemical Plant in Augusta, Georgia. The well material was "Bellend" 4" schedule 80, slotted PVC. The continuous borehole was drilled to a vertical depth of 19' utilizing a combination of the walkover method of tracking early in the borepath and then transistioning to a wireless guidance system later. Significant interference from a 300,000 volt DC power source required utilization of the two methods. The riser sections were sealed with "Benseal", a bentonite based product. Development consisted of annulus agitation with water and drill mud breaking fluids in combination with pumping inside the well screen.

A 270' groundwater recovery well was installed with an 130', 8" schedule 80 PVC .010 slot screen section and 10" schedule 80 PVC riser sections which were needed to handle the larger downhole pumps that were specified. The horizontal portion of the well was inserted at 35' deep and guidance was provided by the walkover method. The limited site area, which was located in St. Augustine, Florida, required a 22 degree entry and exit angles which caused significant pipe handling complexities during the pullback.

A 145' bore was completed at an active service station site with petroleum contamination in Tallahassee, Florida. Three 6" schedule 40 PVC pipes and two 1.5" schedule 80 PVC pipes were installed simultaneously in the bore. This piping was used to convey vacuum and air to the vertical wellheads without the need for trenching in front of the business which would have caused loss in sales for the business and undue stress on construction crews.

A 500’ horizontal groundwater recovery well was installed at a chlorine gas manufacturing facility in Augusta, GA. Due a very strong magnetic field generated by the facility, walkover equipment was utilized with the wireline guidance tooling to ensure proper placement of the well screen.

Three 2” HDPE air sparge wells were installed using the blind bore technique in Orlando, Florida. The 100’ wells were installed at a depth of 40’ below land surface. Due to the small area of the site, the bores could not be brought out of the ground as found in a normal drilling project.

Two 4” HDPE recovery wells were installed at a depth of 40’ below ground surface. The wells were part of a remedation system to clean-up contaminated groundwater at an old dry cleaner site in Coral Springs, Florida. The wells were installed using the blind bore technique with ends of the wells terminating under the building.

Ten 2” HDPE wells were installed as part of an air sparge / soil vapor extraction system in Deland, Florida. The 6 air sparge wells were installed at a depth of 25’ below land surface. The screen lengths were approximately 200’ in length with total bore lengths averaging 240’ in length. The 4 vapor extraction wells were installed at a depth of 15’ below land surface. With screen and riser lengths mirroring the air sparge wells. All wells were installed using the blind borehole technique.

Two 6” horizontal wells were re-developed at an industrial facility in Orlando, Florida. The well screens consisted of 6” carbon steel with vertical slots of .005 inches. The screens were installed at a depth of 50’ below land surface with screen lengths of 800’. The wells were cleaned using chemical and mechanical techniques. Upon completion, flow rates were proven to be above rates at the time of installation.

Two horizontal wells were installed at a chemical processing facility in Deer Park, Texas. The wells were constructed of 4” SDR-11 HDPE with a slot size of .010 inches. The wells were installed at a depth of 40’ below land surface with horizontal screen segments measuring 750’ and 900’ in length.

One horizontal bio-sparge well was installed under a large area containing a Fire Department, a US Highway and numerous residential structures. The well was constructed of 6” SDR-11 HDPE with custom slotting to ensure even air distribution. The well was installed at a depth of 40’ below land surface. Total well length was 1,275’ with 850’ of screen.

30 Horizontal wells were installed at a former fueling site in Gainesville, Florida. 16 Biosparge wells were installed at a depth of 50 feet BLS with screen lengths 240 to 420 feet in length and total bore lengths 600-800 feet in length. 14 AS wells were installed at a depth of 30 feet below land surface with screen lengths 180 to 400 feet in length with total bore lengths 600-800 feet. Both walk over and wireline tracking were used to complete the installation of the wells. The wells were 2” SDR 11 HDPE 3408.