Hydraulic fracturing damage mechanisms

Damage can be caused during hydraulic fracturing operations too. Significant fracturing damage mechanisms include the following  

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At present, the equipment and field applications of pulsating hydraulic fracturing technology have been studied by many scholars, but there are still many shortages of the research on the mechanism of coal fatigue failure. Therefore, based on the damage... 

In naturally fractured formations, an additional damage mechanism is the loss of whole mud deep into the formation. This form of damage is very difficult to remove entirely. Such damage may require hydraulic fracturing or repeated sequences of stimulation fluid injection and production, which is not always possible. 

If a well is not damaged or if it is but the damage is not acid removable, then there should be little to no expectation from an addizing treatment. Such a well should not be acidized. This is because addizing does not decrease skin much below zero, as can be shown from the radial-flow mathematics. However, an undamaged well may respond to hydraulic fracturing, or short skin bypass fracturing, if feasible from both a mechanical and a reservoir standpoint. 

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