ASP water well screens provide reliable filtration for a wide range of well completion and work over operations. ASP water well screens are constructed of a series of parallel “V” shaped wrapped wires, cold wound welded on perpendicular support rods. The result is a smooth plug resistant screen surface that is very structurally sound.
We engineer our products to optimize strength, precision, and flexibility in the field. They are built to provide specific end-user solutions for a broad range of well completion applications in water well industries.
ASP well completion screens are available in various shapes and sizes and constructions to meet a wide range of customer requirements. We also offer a range of fittings and materials of construction to meet a wide variety of applications.
Rod Based ASP Water Well Screens
ASP continuous slot well screens are very effective in relatively shallow, thin aquifer wells since they are able to be manufactured with very small slot size and maintain the necessary open area to minimize frictional head loss.
ASP Water Well Screens are manufactured by wrapping a shaped wire around an internal array of longitudinal rods. The wire and rod, generally made from carbon or stainless steel are joined by resistance welding. Screen sections are usually twenty feet long. The ‘V’ or wedge shaped profile wire wraps around the support rods over the full length of the screen creating a continuous and consistent slot opening. Most continuous wire wrap screens are manufactured from stainless steel in order to avoid problems associated with sand pumping that may result from accelerated corrosion of carbon steel screens.
ASP Water Well Screens Advantages
· Continuous slot opening significantly increases the available open area providing greater access to the water-bearing zone
· “V” shaped profile wire, avoids clogging, is self-cleaning and ensures an uninterrupted flow
· ASP screens are strong and durable
Advantages of ASP Water Well Screens vs. Conventional Slotted Pipes
· More energy efficient & increased water flow
· Reduces erosion of entry surface & increase well life
· Allows a uniform & efficient water production
· Reduces potential pump damage & subsequent maintenance costs
‘V’ profile or wedge wire ensures that the filter pack particles make a ‘two point’ contact across the slot opening. Clogging and loss of open area are avoided, local incrustation and well wall erosion are minimized & well life is enhanced.
ASP Continuous Slot Pipe Based Well Screens
ASP pipe based well screens are well suited for deep vertical wells, horizontal remediation and supply wells. A screen jacket and pipe are welded together to create a strong durable well screen. Longitudinal support rods on the screen pipe direct flow to the perforations in the pipe. The strength of the inner pipe liner allows the use of smaller wrap wire creating greater open area.
Continuous Slot Pre-packed Rod based and Pipe Based Well Screens
For down hole sand control ASP prepacked screens eliminate the need to gravel pack. Factory installed pack material in the annulus between outer and inner screens are available from ASP. The double screen construction and packing significantly increase tensile strength and collapse resistance. Prepacked screens are available in 20 ft. lengths of continuously wrapped screen.
MATERIALS OF CONSTRUCTION
Stainless: Types 304 and 316L
For water wells where elements rapidly corrode carbon and stainless steel is recommended. Stainless steel is resistant to the detrimental effects of H2S, CO2, and salt water. Removal of incrustation by acidizing may be safely accomplished in stainless steel screens.
Low Carbon
For economical completions, low carbon steel materials are available
Specifications
