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We introduced the image processing application to identify fracture and calculate fracture porosity based on the image logging for the gas-bearing shale. Shale gas is an unconventional gas resource and has been paid more attention in recent years. The pore structure of shale is very complicated, where fracture is the main flowing channel. The conventional logging and the imaging logging offer the...
The unconventional resource is a research hotspot of the present oil and gas development. The tight rock of the unconventional reservoir has the characteristics of the complex pore structure and the nanometer scale pore system. Study of the pore structure would help us understand the fluid transport property within the tight rock. A quantitative method to describe pore size distribution for the tight...
It has been reported that increased white matter lesions (WML) is one of the risk factors for stroke. To quantify WML objectively with the presence of acute infarcts, we proposed an automated segmentation scheme to locate WMLs in combined T1-weighted MRI, fluid attenuation inversion recovery (FLAIR) and diffusion weighted imaging (DWI).The proposed method detects WMLs by a coarse-to-fine mathematical...
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