Global Patent Index - EP 2031138 A1

EP 2031138 A1 20090304 - Use of glass balls for filling the annular space between filter pipe and borehole wall for drill holes for gathering water

Title (en)

Use of glass balls for filling the annular space between filter pipe and borehole wall for drill holes for gathering water

Title (de)

Verwendung von Glaskugeln zur Füllung des Ringraumes zwischen Filterrohr und Bohrlochwand bei Bohrungen zur Wassergewinnung

Title (fr)

Utilisation de boules en verre pour le remplissage de l'espace annulaire entre le tuyau de filtre et la paroi du trou de forage en vue de la récupération d'eau

Publication

EP 2031138 A1 20090304 (DE)

Application

EP 08012895 A 20080717

Priority

DE 102007041635 A 20070903

Abstract (en)

The well has a filter pipe (4), which is inserted in a well bore. An annular space is filled between a borehole wall (2) of the well bore and the filter pipe by glass beads (3). The glass beads are arranged in direct contact with the borehole wall. The glass beads are filled under the insertion of the pipe in the well bore remain in contact with the borehole wall.

Abstract (de)

Brunnen zur Trinkwassergewinnung, bestehend aus einem Filterrohr, das in eine Brunnenbohrung eingebracht ist, wobei der Ringraum zwischen einer Bohrlochwand der Brunnenbohrung und dem Filterrohr durch Glaskugeln verfüllt ist, wobei die Glaskugeln in unmittelbarem Kontakt mit der Bohrlochwandung angeordnet sind.

IPC 8 full level

E03B 3/12 (2006.01); E02B 3/20 (2006.01); E02B 3/24 (2006.01)

CPC (source: EP)

E03B 3/20 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

EP 2031138 A1 20090304; DE 102007041635 A1 20090312

DOCDB simple family (application)

EP 08012895 A 20080717; DE 102007041635 A 20070903