Title:
PILOTING METHOD OF A LASER SYSTEM OF AN ABSOLUTE GRAVIMETRIC MEASUREMENT DEVICE BY ATOMIC INTERFEROMETRY FOR GEOPHYSICAL APPLICATIONS PARTICULARLY FOR MONITORING HYDROCARBON RESERVOIRS
Document Type and Number:
WIPO Patent Application WO/2012/090128
Kind Code:
A3
Abstract:
The present invention relates to a piloting method of a laser system of an absolute gravimetric measurement device by atomic interferometry particularly suitable for on-site applications and advantageously used in the geophysical field, comprising the following steps: generating (101) the cooling, entrapment, manipulation, thrust and detection bands of a plurality of atoms; - cooling (102) the plurality of atoms; - entrapping (103) the plurality of cooled atoms in a three-dimensional magneto-optical trap; - releasing (104) the plurality of atoms in free fall in an ultra-vacuum system (14); - performing (107) an interferometric sequence; - performing (108) a detection; wherein the release step (104) comprises the step which consists in the quenching (109) of the three- dimensional magneto-optical trap through the contemporaneous extinction of said bands for producing a three-dimensional magneto-optical trap (32) and a trap magnetic field.
Inventors:
ITALIANO FRANCESCO (IT)
ANTONELLI MASSIMO (IT)
TINO GUGLIELMO MARIA LUCIO (IT)
SORRENTINO FIODOR (IT)
ANTONELLI MASSIMO (IT)
TINO GUGLIELMO MARIA LUCIO (IT)
SORRENTINO FIODOR (IT)
Application Number:
PCT/IB2011/055859
Publication Date:
December 27, 2012
Filing Date:
December 21, 2011
Export Citation:
Assignee:
ENI SPA (IT)
ITALIANO FRANCESCO (IT)
ANTONELLI MASSIMO (IT)
TINO GUGLIELMO MARIA LUCIO (IT)
SORRENTINO FIODOR (IT)
ITALIANO FRANCESCO (IT)
ANTONELLI MASSIMO (IT)
TINO GUGLIELMO MARIA LUCIO (IT)
SORRENTINO FIODOR (IT)
International Classes:
G01V7/00
Other References:
NYMAN R A ET AL: "I.C.E.: a transportable atomic inertial sensor for test in microgravity", APPLIED PHYSICS B ; LASERS AND OPTICS, SPRINGER, BERLIN, DE, vol. 84, no. 4, 16 August 2006 (2006-08-16), pages 673 - 681, XP019424650, ISSN: 1432-0649, DOI: 10.1007/S00340-006-2395-7
STERN G ET AL: "Light-pulse atom interferometry in microgravity", THE EUROPEAN PHYSICAL JOURNAL D ; ATOMIC, MOLECULAR AND OPTICAL PHYSICS, SOCIETÀ ITALIANA DI FISICA, BO, vol. 53, no. 3, 16 May 2009 (2009-05-16), pages 353 - 357, XP019662862, ISSN: 1434-6079
FREIER ET AL: "Measurement of Local Gravity using Atom Interferometry - Development of Subcomponents", MASTER'S THESIS, TECHNISCHE UNIVERSITÄT BERLIN, FAKULTÄT II - INSTITUT FÜR OPTIK UND ATOMARE PHYSIK, 9 August 2010 (2010-08-09), XP002658674, Retrieved from the Internet [retrieved on 20110909]
STERN G ET AL: "Light-pulse atom interferometry in microgravity", THE EUROPEAN PHYSICAL JOURNAL D ; ATOMIC, MOLECULAR AND OPTICAL PHYSICS, SOCIETÀ ITALIANA DI FISICA, BO, vol. 53, no. 3, 16 May 2009 (2009-05-16), pages 353 - 357, XP019662862, ISSN: 1434-6079
FREIER ET AL: "Measurement of Local Gravity using Atom Interferometry - Development of Subcomponents", MASTER'S THESIS, TECHNISCHE UNIVERSITÄT BERLIN, FAKULTÄT II - INSTITUT FÜR OPTIK UND ATOMARE PHYSIK, 9 August 2010 (2010-08-09), XP002658674, Retrieved from the Internet
Attorney, Agent or Firm:
MATI, Silvia (Via Borgonuovo 10, Milano, IT)
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