formation damage

formation damage

[fȯr′mā·shən ‚dam·ij]
(petroleum engineering)
A reduction in the permeability of reservoir rock caused by penetration of drilling fluid and treating fluids into the section adjacent to the wellbore.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Highly Recommended: Tariq Almubarak, instructor -- formation damage and stimulation, Upstream Professional Development Center of Saudi Aramco
and Dresenn, G.: 2006, Hydraulic fracturing and formation damage in a sedimentary geothermal reservoir.
Finally, the thickening water fracturing fluid has good gel breaking performance in the formation, and the formation damage rate after controlled pressure reentry is small.
On the other hand, even if the entire well interval is open, on account of reservoir heterogeneity and nonuniform formation damage, production rate of each section along horizontal wellbore is not the same.
Premier's recent acquisitions have sequentially added High Resolution Chemo-Stratigraphy with proprietary mineral models, best-in-class Formation Damage evaluation; physical and numerical EOR simulations; reservoir fluids testing and modelling; extensive Rock Mechanics capabilities; and unique work-flows for characterising unconventional reservoir rocks.
Since the 1960s, experts had noticed that formation damage is caused by clay mineral (Hewitt, 1963).
By using Aphron drilling fluids, lost circulation to formation will be minimized and by providing a flexible seal on formation openings and micro fractures, formation damage will be neglected.
He also recognized that fluid systems which are designed by that particles to prevent formation damage should involve not only Clay mineral but also ability to face other mineral materials problems and also non mineral materials.
Drilling mud is used for Cuttings removal, suspension of cuttings, release of cuttings at seafloor, minimizing formation damage, reducing filtration rate, cooling and the lubrication of the drill bit and drill string, buoyancy support of the drill string and corrosion prevention.
Pryme's wholly owned US subsidiary, Pryme Energy LLC ("Pryme Energy"), as operator of the Rosewood Plantation 21H well located in Avoyelles Parish, Louisiana, has initiated legal action against Signa Engineering Corporation ("Signa") to recover losses in connection with the formation damage and certain costs overruns.

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