Paleoenvironmental conditions, organic matter accumulation, and unconventional hydrocarbon potential for the Permian Lucaogou Formation organic-rich rocks in Santanghu Basin, NW China

Zhang, Shaohua; Liu, Chiyang; Liang, Hao; Wang, Jianqiang; Bai, Jing; Yang, Mei; Liu, Guoheng; Huang, Hexin; Guan, Yuzhao

doi:10.1016/j.coal.2017.11.012

Cited by 89 publications

(51 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4.2, is also likely to influence the fractal dimension through impacting pore throat structures. [48][49][50] Therefore, pore-throat structure parameters and mineral compositions illustrated in Fig. 9 can explain the way rock mineral compositions impact pore-throat structures.…”

Section: Effects Of Mineral Compositions On Pore-throat Structuresmentioning

confidence: 99%

Pore-Throat Structure and Fractal Characteristics of Shihezi Formation Tight Gas Sandstone in the Ordos Basin, China

et al. 2018

Self Cite

View full text Add to dashboard Cite

In order to better understand the impact of fractal features of pore-throat structures on effective physical properties of tight gas sandstones, this paper carried out constant-rate mercury ‡ ‡ Corresponding authors. This is an Open Access article published by World Scientific Publishing Company. It is distributed under the terms of the Creative Commons Attribution 4.0 (CC-BY) License. Further distribution of this work is permitted, provided the original work is properly cited. 1840005-1Fractals 2018.26. Downloaded from www.worldscientific.com by 13.66.222.141 on 04/01/19. Re-use and distribution is strictly not permitted, except for Open Access articles. H. Huang et al.injection tests, gas-water permeability analyses, helium-based porosity and nitrogen pulse decay permeability measurements, and SEM and casting thin-section analyses on 20 sandstone samples of the Shihezi Formation from 16 wells of the Sulige Gas Field in the Ordos Basin, China. The fractal dimensions of pores corresponding to two pore radius ranges, namely fractal dimensions D p2 and D p3 , and those of throats also corresponding to two throat radius ranges, namely fractal dimensions D t1 and D t2 , were then calculated using the constant-rate mercury injection data. Fractal dimensions D p2 and D p3 are negatively correlated with the average pore radius and pore volume as well as quartz content, and they are positively related to contents of clay minerals and lithic fragments. Compared with pore fractal dimensions, throat fractal dimensions have lower correlations with throat structural parameters, and show vague relations with mineral compositions. Although the effects imposed by mineral compositions upon throat structures are similar to those upon pore structures, the flake-like and curved shapes of throats result in irregularity of fractal dimensions. Tight gas sandstones, with smaller fractal dimensions D p2 and D p3 , have larger effective porosity, indicating that more gas volumes can be replaced by liquids. As for tight gas sandstones with lower fractal dimensions D p3 and D t2 , the effective gas permeability is relatively high. In such cases, gas can flow more easily through the reservoir.

show abstract

Section: Effects Of Mineral Compositions On Pore-throat Structuresmentioning

confidence: 99%

Pore-Throat Structure and Fractal Characteristics of Shihezi Formation Tight Gas Sandstone in the Ordos Basin, China

et al. 2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…High-quality source rocks are generally characterized by high organic matter abundance and stable distribution, and they are also the material basis for the formation of largeand medium-sized oilfields (Magoon and Dow 1991;Qin 2015;Xiao et al 2015;Li et al 2017;Ghassal et al 2018;Zhang et al 2018). The development of high-quality source rocks is controlled by a variety of factors.…”

Section: Introductionmentioning

confidence: 99%

“…A large amount of hydrocarbon-generating parent material is rapidly accumulated and preserved, forming organic-rich mudstone, such as those in the Yincheng Formation in the Songliao Basin (Shan et al 2013). The second stage is the late period of the volcanic eruption (the volcanic intermission), the volcanic ash in the atmosphere continues to fall into the water columns, resulting in a large bloom of algae and an increase in the primary productivity, such as in the Lucaogou Formation in the Santanghu Basin (Zhang et al 2018) and the Fengcheng Formation and Lucaogou Formation in the Junggar Basin (Cao et al 2015). The organic and inorganic geochemical characteristics of rocks can be used to evaluate the paleoproductivity of the water column (Ren et al 2005;Kryc et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Paleoenvironment and organic matter enrichment of the Carboniferous volcanic-related source rocks in the Malang Sag, Santanghu Basin, NW China

Huang

Chen

et al. 2020

Pet. Sci.

View full text Add to dashboard Cite

Volcanic activity was quite frequent during the deposition of the Late Carboniferous Ha’erjiawu Formation in the Santanghu Basin. The petrology and organic and inorganic geochemical indicators were used to investigate hydrocarbon potential, paleoenvironmental conditions and organic matter enrichment of the mudstones. The results show that the oil generation capacity of the Ha’erjiawu Formation mudstones, which has abundant oil-prone organic matter (Type II kerogen with hydrogen index values mainly ranging from 250 to 550 mg HC/g TOC) in mature stage (Tmax values mainly ranging from 435 to 450 °C), is considerable. The Ha’erjiawu Formation was deposited in a dysoxic, freshwater-mildly brackish, and warm-humid environment. During its deposition, the Ha’erjiawu Formation received hydrothermal inputs. The volcanic hydrothermal activities played an important role in the organic matter enrichment. In addition, the total organic carbon (TOC) is significantly positively correlated with the felsic mineral content, but it is negatively correlated with the carbonate mineral content and C27/C29 ratios, indicating that terrigenous organic matter input also contributed to the primary productivity in the surface water. Therefore, the formation of the high-quality source rocks in the Ha’erjiawu Formation was jointly affected by the hydrothermal activity and the terrigenous organic matter input.

show abstract

“…The Permian tectonic evolution of North Xinjiang is a key interest for many researchers (Fang et al, ; Hendrix et al, ; Ma, Shu, & Meert, ; Obrist‐Farner, Yang, & Hu, ; J. Wang, Cao, et al, ; Wartes, Carroll, & Greene, ), due to deposition of lacustrine hydrocarbon source rocks (Carroll, Brassell, & Graham, ; Graham et al, ; S. Tao et al, ; S. Zhang et al, ; Zhou et al, ). Additionally, this area is a key laboratory for the study of a critical transition between the Palaeozoic continental amalgamation and the Meso‐Cenozoic intracontinental evolution during Permian (Allen, Şengör, & Natal'In, ; Carroll, Graham, Hendrix, Ying, & Zhou, ; Chen, Shu, & Santosh, ; Hendrix et al, ; Jolivet et al, ; Şengör, Natal'in, & Burtman, ; Shu et al, ; Windley, Allen, Zhang, Zhao, & Wang, ; Xiao et al, ; S. Zhao et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Wang, Cao, et al, 2018;Wartes, Carroll, & Greene, 2002), due to deposition of lacustrine hydrocarbon source rocks (Carroll, Brassell, & Graham, 1992;Graham et al, 1990;S. Tao et al, 2012;S. Zhang et al, 2018;Zhou et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Detrital zircon U–Pb geochronology of the Permian strata in the Turpan–Hami Basin in North Xinjiang, NW China: Depositional age, provenance, and tectonic implications

et al. 2018

Self Cite

View full text Add to dashboard Cite

The Permian sedimentary rocks in the Turpan–Hami Basin are key records of the tectonic evolution in the Eastern Tianshan area, although their depositional ages and provenances remain relatively less studied. Here, we conducted detrital zircon U–Pb geochronology on subsurface samples collected from Well LN1 in the Turpan–Hami Basin to understand the depositional ages and provenances of the Permian rocks. In this study, detrital zircon U–Pb ages from the Late Carboniferous Sumuke Formation yielded a notable Permian age population with the youngest single‐grain age at 282.6 Ma. Compiling this result with a published dataset from the surrounding regions of the Turpan–Hami Basin, it shows that the Sumuke Formation was actually deposited in the Early Permian and the Late Carboniferous palynological assemblages within it are of recycled origin. The detrital zircon age spectra of the three Early–Middle Permian samples from Well LN1 define similar unimodal distribution, with prominent late Carboniferous age peaks and scarce Precambrian ages, further indicating that the zircon grains in these three samples should be ultimately sourced from the Jueluotag, the southern branch of the North Tianshan. Regionally, the Bogda, the northern branch of the North Tianshan, as catchment areas recorded interaction between southern and northern sources, and thus, there was a single greater Junggar–Turpan Basin during the Early–Middle Permian. During the latest Middle Permian to Late Permian, provenance shifts occurred at the Jueluotag and the southern piedmont of the Bogda, reflecting the uplift of the Central Tianshan and the Bogda and the isolation of the Junggar Basin and Turpan–Hami Basin. Integrating regional geological studies and provenance evolution trends, we suggest that the Turpan–Hami Basin and its surrounding regions were in a rift setting controlled by post‐collision extension during Early–Middle Permian. By contrast, tectonic contraction and inversion occurred during the latest Middle Permian to Late Permian as a part of the intraplate orogenic process in the Tianshan, which responded to the convergence between the Songpan–Ganzi terrane and palaeo‐Eurasian Plate.

show abstract

Paleoenvironmental conditions, organic matter accumulation, and unconventional hydrocarbon potential for the Permian Lucaogou Formation organic-rich rocks in Santanghu Basin, NW China

Cited by 89 publications

References 82 publications

Pore-Throat Structure and Fractal Characteristics of Shihezi Formation Tight Gas Sandstone in the Ordos Basin, China

Pore-Throat Structure and Fractal Characteristics of Shihezi Formation Tight Gas Sandstone in the Ordos Basin, China

Paleoenvironment and organic matter enrichment of the Carboniferous volcanic-related source rocks in the Malang Sag, Santanghu Basin, NW China

Detrital zircon U–Pb geochronology of the Permian strata in the Turpan–Hami Basin in North Xinjiang, NW China: Depositional age, provenance, and tectonic implications

Contact Info

Product

Resources

About