Critical tectonic events and their geological controls on gas generation, migration, and accumulation in the Weibei coalbed methane field, southeast Ordos basin

Yan, Taotao; Yao, Yanbin; Liu, Dameng

doi:10.1016/j.jngse.2015.10.002

Cited by 33 publications

(18 citation statements)

References 26 publications

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“…The tectonic subsidence history, geothermal field evolution history, and methane generation features were simulated by using a commercial computer software program PetroMod 2012. More details can be found in our previous work [45]. 4 Geofluids tectonic and subsidence evolution, geothermal evolution, and coal maturation history) of coal reservoir in Gujiao CBM field were strongly controlled by the evolution process of Xishan coalfield.…”

Section: Methods and Datasetmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…The coal reservoir evolution process is a complex dynamic process which includes coal organic matter matura-tion, gas generation, sorption, migration, diffusion, pooling, and accumulation processes [45]. These dynamic processes were mainly controlled by the evolution characteristics (tectonic subsidence history, geothermal and paleotectonic stress field evolution history) of coal bearing basin [45]. Basin-scale investigations of the CBM reservoir evolution process have been performed in the United States [46,47], Australia [48,49], Russia [50], Belgium [51], Ukraine [52], and China [45,53,54].…”

Section: Introductionmentioning

confidence: 99%

“…In this study, the method proposed in our previous work [45] was used to study this complex dynamic process in Gujiao CBM field. The evolution histories of sedimentaryburial process, thermal field, and hydrocarbon generation in CBM reservoir were simulated by analyzing the geophysical logging data.…”

Section: Introductionmentioning

confidence: 99%

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A Study on the Heterogeneity Characteristics of Geological Controls on Coalbed Methane Accumulation in Gujiao Coalbed Methane Field, Xishan Coalfield, China

Yan

He²,

Bai

et al. 2021

Geofluids

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Commercial exploration and exploitation of coalbed methane (CBM) in Gujiao coalbed methane (CBM) field, Xishan coalfield, have rapidly increased in recent decades. The Gujiao CBM field has shown strong gas distribution heterogeneity, low gas content, and wide distribution of wells with low production. To better understand the geological controlling mechanism on gas distribution heterogeneity, the coal reservoir evolution history and CBM accumulation process have been studied on the base of numerical simulation work. The burial history of coal reservoir can be classified into six stages: shallowly buried stage; deeply buried stage; uplifting stage; short-term tectonic subsidence stage; large-scale uplifting stage; and sustaining uplifting and structural inversion stage. Mostly, coal seams have experienced two-time thermal metamorphisms with twice hydrocarbon-generation processes in this area, whereas in the southwest part, the coal seams in there suffered three-time thermal metamorphisms and hydrocarbon-generation processes. The critical tectonic events of the Indosinian, Yanshanian, and Himalayan orogenies affect different stages of the CBM reservoir accumulation evolution process. The Indosinian orogeny mainly controls the primary CBM generation. The Yanshanian orogeny dominates the second and third gas generation and migration processes. The Himalayan orogeny mainly affects the gas dissipation process and current CBM distribution heterogeneity.

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Section: Methods and Datasetmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Study on the Heterogeneity Characteristics of Geological Controls on Coalbed Methane Accumulation in Gujiao Coalbed Methane Field, Xishan Coalfield, China

Yan

He²,

Bai

et al. 2021

Geofluids

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“…A set of marine-continental transitional coal-measure strata in the Benxi Formation-Shanxi Formation of the Upper Paleozoic [9]. This period was an important coal accumulation period in the Late Paleozoic in North China and formed a set of widely distributed coal-bearing strata [28][29][30]. Continuous hydrocarbon generation provides a rich source of gas for the formation of tight gas reservoirs.…”

Section: Geological Settingmentioning

confidence: 99%

Growth Mechanism of Siliceous Cement in Tight Sandstone and Its Influence on Reservoir Physical Properties

et al. 2018

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To investigate the effect of siliceous cementation on the densification of sandstone and the forming process of tight sandstone, based on cathodoluminescence, scanning electron microscopy and thin section analysis, the growth mechanism and characteristics of quartz particles in tight sandstone formations are explored. Meanwhile, combined with conventional core analysis and X-ray diffraction experiments, the factors affecting the crystallization of quartz particles, including the chlorite content, grain size and clay mineral, are analyzed, respectively. The entire siliceous cementation is divided into two processes. The first part is the process in which the weathered and rounded particles in the formation are restored to the hexagonal dipyramid crystal by siliceous cementation. The second part is the process of coaxial growth that the hexagonal dipyramid crystal continues to increase with the form of micro-quartz film. As siliceous cements continue to increase, the petrological characteristics of sandstones are constantly changing. The tight sandstone developed in the study area is composed of lithic sandstone and quartz lithic sandstone. Based on the analysis results, 2D and 3D evolution models are established for densification of two different lithic sandstones. When the content of siliceous cement in the study area is less than 17%, the porosity of tight sandstone increases with the increase of cement. When the content of cement is more than 17%, the porosity of tight sandstone is negatively correlated with the content of cement. When the cement content is greater than 10%, the reservoir permeability is negatively correlated with it. Furthermore, the particle size mainly affects the permeability of reservoir, and the particle size is negatively correlated with the permeability of tight sandstone. The most high-quality tight sandstone reservoir in the study area is in the first cementation stage when siliceous cements are distributed in porphyritic texture with the content of 10–15% and a grain size of 0.2–0.3 mm. In addition, the relatively high-quality reservoir is the one developing clay mineral film with a content of cementation about 5–12%.

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A novel method for evaluating proneness of gas outburst based on gas-geological complexity

et al. 2020

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Critical tectonic events and their geological controls on gas generation, migration, and accumulation in the Weibei coalbed methane field, southeast Ordos basin

Cited by 33 publications

References 26 publications

A Study on the Heterogeneity Characteristics of Geological Controls on Coalbed Methane Accumulation in Gujiao Coalbed Methane Field, Xishan Coalfield, China

A Study on the Heterogeneity Characteristics of Geological Controls on Coalbed Methane Accumulation in Gujiao Coalbed Methane Field, Xishan Coalfield, China

Growth Mechanism of Siliceous Cement in Tight Sandstone and Its Influence on Reservoir Physical Properties

A novel method for evaluating proneness of gas outburst based on gas-geological complexity

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