Water fracturing has been recognized as the key technologies for commercial exploitation of the shale, and the fracturing design are based on the analysis of *** article studies Longmaxi exposures in southeast of Chon...
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Water fracturing has been recognized as the key technologies for commercial exploitation of the shale, and the fracturing design are based on the analysis of *** article studies Longmaxi exposures in southeast of Chongqing,and carries on experiments to analysis the feasibility of the fracturing from the aspect of *** results show that the shale is well bedded,tight,low porosity and low permeability in this *** it needs to be *** analysis of the mineral components shows that Longmaxi shale has a high content of brittle minerals,such as quartz and carbonate,and the content of these brittle minerals range from 49%to 65%,with an average of 57%.While the clay mineral content is low,and there is no kaolinite or montmorillonite which contain serious hydration expansion,on the basis of ***,the shale brittleness coefficient calculated by the mineral composition and dynamic elastic parameters range from 49%to 77% and the average brittleness coefficient is higher than 57%,which shows the formation is *** with the successful exploitation of the North American shale reservoir,Longmaxi shale in southeast of Chongqing is fit to fracturing *** to the North American shale fracturing practical experience,we suggest that the rock brittleness should be taken into consideration in the fracturing design process,and the fracturing fluid should be with large volume of fluid,low proppant content and less proppant consuming.
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