Geometry of layer-bound fractures based on fracture density and aperture-depth plots from resistivity image logs of deviated wells

Özkaya, Sait I.

doi:10.1016/j.jsg.2021.104372

Cited by 4 publications

(1 citation statement)

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“…For example, Pan et al, 2019a established a local fracture network model of a limestone mine using outcrop fracture measurements obtained using non-contact measurement techniques (such as 3D laser scanning and photometry). For deep reservoirs, image logging can be used to identify fractures more accurately and can provide important parameters such as the linear fracture density, direction, and pore diameter (Ozkaya, 2021;Nian et al, 2022). Tang et al (2020) obtained statistics of the distribution characteristics of image logging fractures and gained a better understanding of the fractures in the Wumishan geothermal reservoir in the Jixian system in the Xiong'an new area.…”

Section: Introductionmentioning

confidence: 99%

Fracture Characteristics and Reservoir Inhomogeneity Prediction of the Gaoyuzhuang Formation in the Xiong’an New Area: Insights From a 3D Discrete Fracture Network Model

Yue

Wang

et al. 2022

Front. Earth Sci.

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The Xiong’an new area in northern China is rich in geothermal resources. The Gaoyuzhuang Formation in the Proterozoic Jixian system is an important recently discovered geothermal reservoir. The Gaoyuzhuang reservoir has been affected by multiple stages of tectonic movement. The fractures are very well developed, resulting in strong heterogeneity in the reservoir’s porosity and permeability. Few studies have been conducted on the fractures and heterogeneity of the Gaoyuzhuang reservoir. In this study, interpretation of data from image logs was used to summarize the characteristics of the fractures, including the fractures’ strikes, dips, and lengths. The permeability distribution of the reservoir in the vicinity of the borehole was predicted. The hydro-thermal (TH) coupling model was used to reproduce the process of pumping tests, and the simulation results were found to be in good agreement with the field test data. In addition, the relationship between the fracture aperture and length was obtained, dmax=4.2×10−5⋅L0.5. The results of this study provide data and technical support for further reservoir research and evaluation of the geothermal resources of the Gaoyuzhuang reservoir.

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Section: Introductionmentioning

confidence: 99%