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.
Mentioned in ?
References in periodicals archive ?
Demand will be strongest for chemicals associated with improved drilling efficiency and reduced rig time, less tendency to cause formation damage, and more favorable environmental profiles.
The Ashover Grit interval had earlier tested at 80b/d, but subsequent petroleum engineering and geotechnical work suggests this rate had been impeded by nearby wellbore formation damage.
As previously reported the measured flow rates of 80 barrels of oil per day ('bopd') in the Ashover Grit were affected by localised near well bore formation damage known as a high 'Skin factor', and are not representative of the flow rates that could be attained from this interval when fully 'cleaned-up'.
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.
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.
Oil well stimulation by acidising methods involves pumping a variety of acids, including hydrochloric acid, sulphuric acid, and acetic acid, through tubular goods into an oil reservoir to remove formation damage and increase porosity in the formation.
Fluid loss and filter cake properties could influence wellbore stability, differential sticking, formation damage and other aspects.
He covers the basics, mode selection, selecting and determining tubing and production casing sizes, completion and perforating fluids, production casing and cementing, perforating, well completion formation damage evaluation, measures for putting a well into production, tubing string, wellhead assembly, and well corrosion and its prevention.
Information stability is the opposite of in formation damage, which is what a jam mer attempts to do to a targeted system.
Kelly says that SW 101 easily hydrates in brackish or sea water, fresh water or a combination of waters; builds effective wall cake; provides excellent fluid-loss control; and minimizes formation damage.
McMoRan is initiating operations to use a propellant stimulation gun to create fractures that will extend beyond the suspected formation damage to attempt to unblock the perforations and if necessary McMoRan may inject additional solvent to make contact and dissolve the barite.

Full browser ?