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Title:
FLUID DISPERSION FOR DRILLING, AND MINING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/091994
Kind Code:
A1
Abstract:
　Provided is a fluid dispersion for drilling, characterised in that polyoxalate, which is a hydrolyzable resin material, is dispersed in an aqueous medium. The fluid dispersion for drilling, according to the present invention, has a hydrolyzable resin material that is highly hydrolyzable even at low temperatures of 80°C or 60°C or less dispersed in an aqueous medium, and thus the fluid dispersion for drilling can be used when gathering by means of boring drilling methods such as riserless drilling, rotary drilling and hydraulic fracturing.

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Inventors:
YOSHIKAWA SEISHI (JP)
Application Number:
PCT/JP2013/082663
Publication Date:
June 19, 2014
Filing Date:
December 05, 2013
Export Citation:
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Assignee:
TOYO SEIKAN KAISHA LTD (JP)
International Classes:
E21B43/26; C09K8/12
Domestic Patent References:
WO2012121294A12012-09-13
WO2012050187A12012-04-19
WO2013161754A12013-10-31
WO2013161755A12013-10-31
WO2010055903A12010-05-20
WO2012050187A12012-04-19
Foreign References:
US7833950B22010-11-16
US7833950B22010-11-16
Other References:
See also references of EP 2933305A4
Attorney, Agent or Firm:
ONO, Hisazumi et al. (JP)
Ono Pure in addition (JP)
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