Spatial and temporal associations of traps and sources: Insights into exploration in the southern Junggar foreland basin, northwestern China

Wang, Yanjun; Jia, Dong; Zhang, Huquan; Yuan, Bo; Wang, Hongbin; Chen, Wei; Ma, Dawei; Chen, Xuezhen; Pan, Shuxin; Wei, Lingyun; Yu., G Gatinskii; Mingtu, Xiao; Zhang, Yong; Li, Yiquan

doi:10.1016/j.jseaes.2019.104078

Cited by 8 publications

(6 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main coal seam for CBM development in the study area is the Badaowan Formation of lower Jurassic. The coal seam mainly experienced the Yanshan and Himalayan movements. ,− In the early stage of the Yanshan movement, the stratum in the area was uplifted by vertical movement. Later, the late Yanshan movement dominated by horizontal movement had a strong effect on the reconstruction of the study area.…”

Section: Resultsmentioning

confidence: 99%

A Study on Three-Phase Gas Content in Coal Reservoirs and Coalbed Methane-Water Differential Distribution in the Western Fukang Mining Area, Xinjiang, China

Zhang

Deng

et al. 2021

ACS Omega

View full text Add to dashboard Cite

The daily gas production of a single well (coalbed methane (CBM) vertical well) in the western Fukang mining area in the southern margin of the Junggar Basin, Xinjiang, China is relatively high. However, there are significant differences between gas and water production of CBM wells at different locations in the area, and the reason has not been adequately explained. To explore the distribution characteristic of coalbed methane and water in the Fukang mining area, the three-phase CBM gas (adsorption gas, free gas, and water-soluble gas) content was determined based on theoretical analysis and simulation. Combining the calculation results and the basis of geological data, the CBM-water differential distribution in the study area was discussed. The results show that the average daily water production and average daily gas production of CBM wells show a negative correlation in the study area. The CBM wells with high daily gas production are mainly located in the high areas of the structure, and these wells commonly begin to produce gas within a short period. The calculation of three-phase CBM gas content and the test results of gas composition show that the gas content (especially the free gas) is relatively high in the high areas of the structure, while the concentration of C 2 H 6 is relatively low. Meanwhile, the concentration of C 2 H 6 shows a positive correlation with buried depth, which indicates that CBM migrates from the deep areas to the higher areas. The calculation of equivalent water level elevation and hydraulic head shows that the groundwater mainly flows from the central part to the east and the west within the CBM well areas, and the groundwater flows downward along the coal seam controlled by gravity, which results in the CBM-water differential distribution. The CBM-water differential distribution in the western Fukang mining area is the result of coupling control of tectonic and hydrological geology factors. Multistage tectonic movements formed large-scale folds and faults in the area, which controlled the migration direction of CBM and groundwater. The dip angle of the stratum in the study area is commonly greater than 45°, and the gravity effect is greater in the process of groundwater flow, which promotes the CBM-water differential distribution. Free gas migrates to the high area of the structure, and groundwater accumulates in the axial part of the syncline. The results in this study provide a basis for the large-dip angle CBM exploration and development in the Fukang mining area.

show abstract

Section: Resultsmentioning

confidence: 99%

A Study on Three-Phase Gas Content in Coal Reservoirs and Coalbed Methane-Water Differential Distribution in the Western Fukang Mining Area, Xinjiang, China

Zhang

Deng

et al. 2021

ACS Omega

View full text Add to dashboard Cite

show abstract

“…However, the regional geology of the Jurassic-Cretaceous has been studied in some detail. As noted by Wang et al (2019) "Basin type and evolution are closely associated with the regional tectonic setting (Hendrix et al, 1992). During the Latest Triassic, Late Jurassic, Late Cretaceous, and Late Cenozoic, the basins were mainly…”

Section: Introductionmentioning

confidence: 89%

Large scale dinoturbation in braided stream deposits: evidence from the Cretaceous Tugulu Group of the Hami area, Eastern Xinjiang, China

Xing

Lockley

Li³

et al. 2020

Biosis:Biol. Syst.

View full text Add to dashboard Cite

Large dinosaur tracks were recently reported from locations in the Pterosaur-Yadan National Geological Park situated about 100 km south of Hami in Xinjiang Province, China. The park comprises a substantial area in a much larger arid region comprising and extensive spectrum of Cretaceous, siliciclastic, Tugulu Group, lithofacies representing proximal, basin margin, alluvial fan and braided stream deposits, grading into alluvial plain, deltaic and lacustrine facies near the depocenter. Due to the difficulties of conducting detailed geological surveys in such a vast and inhospitable area, definitive resolution of the litho-, bio- and chrono-stratigraphy is challenging in some areas, and yet to be published in detail. Nevertheless, the occurrence of large dinosaur tracks and dinoturbated units, here interpreted as sauropodan, in association with root casts, dinosaur bone and fossil wood, points to the potential of this frontier area to yield valuable paleontological information, and show that flora and fauna were found in arid braided stream systems away from the lacustrine depocenters where body fossils are more abundant and better known.

show abstract

“…It is a secondary positive structural unit with an area of 2340 km 2 . It is connected with Shawan Sag and Zhongguai Uplift through Hongche fault belt in the East and close to Sikeshu Sag in the south [12,13]. The main strike of Chepaizi uplift is from northwest to Southeast, which is an irregular triangle on the plane.…”

Section: Geological Overviewmentioning

confidence: 96%

Study on Petroleum Reservoirs Controlled by Sedimentary Facies in Chepaizi Area

Zhang

Chen

2022

Advances in Transdisciplinary Engineering

View full text Add to dashboard Cite

The purpose of this paper is to clarify the paleocurrent direction and sedimentary characteristics of Cretaceous Qingshuihe formation (K1q) in Chepaizi area. Based on the analysis results of structural maturity and compositional maturity, this paper makes a more detailed exploration on the sedimentary environment and the source of clastic materials in the sedimentary period of K1q. Based on the seismic and drilling data, the paleocurrent direction is analyzed by using paleogeo-morphology and seismic reflection structure. The analysis of rock slices of core samples shows that the content of rock debris and feldspar in sandstone reservoir in the study area is high, the content of quartz is low, the weathering degree of samples is deep, the particle sorting is medium to good, the roundness is subround to subangular, the cementation type is pore cementation, and the structural maturity of sandstone is medium to low. The results of particle size analysis demonstrate that the suspension transportation of fine particles is the main transportation mode in the study area, and the rolling transportation is less. The paleogeomorphology shows that the terrain of the study area is high in the north and low in the south. The seismic profile indicates that low angle imbricate progradation reflection is developed in the northwest and northeast. On the basis of results, the following conclusions are obtained: the paleocurrent of K1q in Chepaizi area carried the northwest provenance into the northeast and south, experienced medium and long-distance transportation.

show abstract

Spatial and temporal associations of traps and sources: Insights into exploration in the southern Junggar foreland basin, northwestern China

Cited by 8 publications

References 44 publications

A Study on Three-Phase Gas Content in Coal Reservoirs and Coalbed Methane-Water Differential Distribution in the Western Fukang Mining Area, Xinjiang, China

A Study on Three-Phase Gas Content in Coal Reservoirs and Coalbed Methane-Water Differential Distribution in the Western Fukang Mining Area, Xinjiang, China

Large scale dinoturbation in braided stream deposits: evidence from the Cretaceous Tugulu Group of the Hami area, Eastern Xinjiang, China

Study on Petroleum Reservoirs Controlled by Sedimentary Facies in Chepaizi Area

Contact Info

Product

Resources

About