Erosion resistant, self and/or artificial external cleaning...

Details Erosion resistant, self and/or artificial external cleaning... Erosion resistant, self and/or artificial external cleaning...

2006-06-27

2006-06-27

Dang, Hoang (Department: 3672)

Wells

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Reexamination Certificate

active

07066252

ABSTRACT:
Disclosed is a tool having an axial passage, a top and a bottom, and a sidewall portion possessing porosity and permeability properties and constructed of a material having equal or better erosion properties than any substances produced and/or injected into any earth formation, said tool functioning as a filter to permit solids to pass or not pass depending upon their size, characterized in that the porosity and permeability can be programmed to any given value radially and longitudinally, said tool further including a means for circulating from outside, inward or from the inside outward to enable cleaning, wherein optionally said tool can be used in multiples.

REFERENCES:
patent: 5088554 (1992-02-01), Arterbury et al.
patent: 5293935 (1994-03-01), Arterbury et al.
patent: 5664628 (1997-09-01), Koehler et al.
patent: 6554064 (2003-04-01), Restarick et al.

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