The term well plugging refers to any of a variety of processes that reduce the permeability of the injection formation or the screens that are placed in the well's injection interval. When permeability is reduced, injection rates must be reduced or injection pressures increased. Table 20.15 lists a number of ways in which plugging may occur. One or more of these situations will probably take place in most injection wells; the number and severity of reactions will determine whether serious operational problems arise. If plugging is confined to the immediate vicinity of the injection well,
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You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.