Global Patent Index - EP 1256692 A1

EP 1256692 A1 2002-11-13 - Drilling method and means for a direct survey of geotechnical parameters

Title (en)

Drilling method and means for a direct survey of geotechnical parameters

Title (de)

Bohrverfahren und Vorrichtung zum Messen von geotechnischen Parametern

Title (fr)

Méthode et dispossitif de forage pour mésurer des paramètres géotechniques

Publication

EP 1256692 A1 (EN)

Application

EP 01111042 A

Priority

EP 01111042 A

Abstract (en)

On a self-moving means equipped with a rotating tower having a vertical translation device of a rotation head (1), a steel tubular body (2) is provided having axially a measure instrument to be lowered by a cable (3) driven by a winch hoist (4) to be fixed inside the tubular body (2) by means of a radial set of some projecting parts (5) inserted into a reference cavity (6) so fixing the instrument inside said tubular body (2). Said instrument is pushed in rotation downward while in its interspace (7) water is injected by a pump (8) having a duct (9) connected to the rotation head (1) of the tubular body (2). In the upper part an outside coaxial part (10) is provided to be solidly connected to the tubular body (2) having at the bottom the disgregation tool (11). A measure instrument is axially set on the outside coaxial part (10). Said measure instrument has on the upper part a collar bearing (12) and in the lower part an electronic measure element (13), formed by a drill. <IMAGE>

IPC 1-7 (main, further and additional classification)

E21B 47/01; E02D 1/02; E21B 49/00

IPC 8 full level (invention and additional information)

E02D 1/02 (2006.01); E21B 7/02 (2006.01); E21B 47/01 (2012.01); E21B 49/00 (2006.01)

CPC (invention and additional information)

E21B 7/027 (2013.01); E02D 1/02 (2013.01); E21B 47/01 (2013.01); E21B 49/006 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1256692 A1 20021113

INPADOC legal status


2004-06-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031223

2003-07-30 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030612

2003-07-30 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-07-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030508

2002-11-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI