Title:
MULTI-SEGMENT WEIGHT AND SPACED-APART CABLE MODULES IN WELLBORE ENERGY STORAGE AND RETRIEVAL
Document Type and Number:
WIPO Patent Application WO/2011/123634
Kind Code:
A3
Abstract:
A system for storing and retrieving energy may include a cable and a multi-segment weight connected to the cable. The multi-segment weight may include a chain of weight segments. The chain of weight segments may be flexible so as to permit each weight segment to rotate with respect to each of its neighboring weight segments. A plurality of cable modules may be attached at spaced-apart locations to the cable above the multi-segment weight. Each cable module may prevent the cable above and below the cable module from coming in contact with a neighboring stationary wall. A hoist may controllably raise and lower the multi- segment weight by sequentially grabbing each neighboring cable module.
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Inventors:
KHOSHNEVIS BEHROKH (US)
ROESLER GORDON (US)
ROESLER GORDON (US)
Application Number:
PCT/US2011/030711
Publication Date:
January 05, 2012
Filing Date:
March 31, 2011
Export Citation:
Assignee:
UNIV SOUTHERN CALIFORNIA (US)
KHOSHNEVIS BEHROKH (US)
ROESLER GORDON (US)
KHOSHNEVIS BEHROKH (US)
ROESLER GORDON (US)
International Classes:
E21B23/00
Foreign References:
| JPS5634981A | 1981-04-07 | |||
| US5353777A | 1994-10-11 | |||
| US20050188783A1 | 2005-09-01 | |||
| US4380180A | 1983-04-19 |
Attorney, Agent or Firm:
BROWN, Marc E. et al. (2049 Century Park East Suite 380, Los Nageles CA, US)
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