Over 98% of all drilled wells produce satisfactory water supplies. Sometimes, however, drilling operations result in a marginal water yield instead of the desired quantity.
With proper development techniques, a poor producing well can often be made into a good one, maximizing a customer's already sizeable investment. This is accomplished by either surging or hydrofracturing.
Surging utilizes a solid-block plunger operated by a cable tool drilling rig. With an up and down plunging motion, water is forced into existing bedrock fractures followed by a reverse suctioning. The usual result, after a prolonged period of surging (usually 1-3 days), is a more productive well yield which is measured by bailing the well.
|Hydrofracture, by definition, means pumping highly-pressurized water down the hole attempting to crack bedrock in which the well has been drilled. When new cracks occur, they often connect to additional water producing veins of fractures adjacent to but not previously part of the well. This procedure has helped turn a number of low-yielding wells into good producers while other marginal wells have dramatically increased their productivity after being "hydrofrac'd." A follow-up to hydrofracturing includes a pump test to measure the well's new output.