Tuesday, April 22, 2014

What You Need To Know About Water Well Rehabilitation

By Essie Osborn


It is a common situation for water wells to lose their capacity or experience water quality problems that need fixing. One of the appropriate ways of dealing with such a situation is carrying out well rehabilitation. Generally, these problems result from fouling items that become deposited on the water surface. As a result, the wells may lose capacity while the water quality is also likely to deteriorate in odor and taste.

Besides being infested by bacteria, the water can also become discolored if there are a lot of plugging deposits. A rehabilitation process can be used to restore the functionality of the well. For instance, rehabilitation should be used to eliminate the plugging deposits from the water surface in order to keep it clean. Keeping the water clean also maintains the volume of the pores.

Proper restoration of water wells involves removal of material deposits to allow restoration of pore volume and water capacity. There are a number of methods used in restoration process. The effectiveness of the method used depends on the proper identification of the plugging material or the design of the substance used in dissolving it. The most common methods used for treatments are chemical and physical modes.

Given that the lower parts of the well consist of variable and complex geochemical and microbiology substances, dissolving the plugging is quite involving. This is also contributed by the fact that the chemical user is required to stick to a particular chemical mixture. It is recommended that the removal process should not interfere with the structure of the well.

Some of the methods of rehabilitating wells include; chemical application, brushing, dual swabbing, sonar jet, aqua freed, bore blast, and jetting. The use of chemicals involves having a set of strategies in line with the problem cause, well construction and the type of formation. The chemical solution should be effective in deposit removal, penetration to the surrounding formation and improved agitation.

Before the process begins, the inner walls are brushed as a form of pre-treatment. Brushing is used to eliminate the remains of chemicals and byproducts of corrosion in the well. It is also used in the opening of the screened water surface in attempts to enhance penetration of the chemicals. The dual swab treatment method is best suited for allocation of the zones of chemical application. The process is also a booster for the reaction process between acid and the chemical deposits in the water.

High pressure jetting can also be used for the opening of the screens. A sonar jet, however, assists in the removal of mineral deposits. A bore blast is also a crucial rehabilitation tool that is used to provide energy that initiates the breaking of the deposits in the well. It can also be used in collaboration with other chemicals.

Aqua feed is a common chemical that is used and readily expands to form a gas. The expansion exerts enough energy to break down the deposits in tiny fragments. The energy produced is also used for deformation of the screens, gravel pack and the formations. In addition, the aqua feed solution is also used by experts to boost the penetration process. One can therefore hire the experts if living in Wisconsin to get these services.




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