Effect of tectonic evolution on hydrocarbon charging time: A case study from Lower Shihezi Formation (Guadalupian), the Hangjinqi area, northern Ordos, China

Bai, Donglai; Yang, Mei; Lei, Zhicheng; Zhang, Yue

doi:10.1016/j.petrol.2019.106465

Cited by 14 publications

(10 citation statements)

References 38 publications

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“…and Shanxi Fm. are predominant source rocks with the maximum thickness of more than 30 m, which are mainly distributed in the south of the Hangjinqi area [20,21]. As the main gas-bearing layer, the Lower Shihezi Fm.…”

Section: Geological Settingsmentioning

confidence: 99%

“…Although some researchers have studied the reservoir quality and its controlling factors [18,19], the porosity evolution and densification time of the Permian tight sandstone reservoirs are still unclear in the Hangjinqi area. The hydrocarbon charging time and accumulation process have been demonstrated by previous works [20,21], but their relationship with reservoir densification was not properly constrained in the research area. The types of tight sandstone reservoirs and gas accumulation mechanisms remained poorly understood, which restricted the further tight gas exploration in the Hangjinqi area.…”

Section: Introductionmentioning

confidence: 96%

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Reservoir Densification, Pressure Evolution, and Natural Gas Accumulation in the Upper Paleozoic Tight Sandstones in the North Ordos Basin, China

Wang

Shi

et al. 2022

Energies

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The vague understanding of the coupling relationship among natural gas charging, reservoir densification, and pressure evolution restricted the tight gas exploration in the Lower Shihezi Formation of the Hangjinqi area, north Ordos Basin. In this study, the quantitative porosity evolution model, the pressure evolution process, and the natural gas charging history of tight sandstone reservoirs were constructed by integrated investigation of the reservoir property, the thin section, SEM and cathode luminescence observations, the fluid inclusion analysis and the 1D basin modeling. The results show that the compaction and cementation reduced the primary porosity by 21.79% and 12.41%, respectively. The densification of the reservoir occurred at circa 230 Ma, which was before the natural gas charging time from 192 to 132 Ma. The paleo-overpressure within the tight reservoirs occurred since the Middle Jurassic with the pressure coefficients between 1.1 and 1.55. The continuous uplifting since the Late Cretaceous resulted in the under- and normal-pressure of the Lower Shihezi Formation with the pressure coefficients ranging from 0.67 to 1.05. The results indicate that the densification of the reservoirs was conducive to the formation of paleo-pressure produced by gas generating. The gas predominantly migrated vertically, driven by gas expansion force rather than buoyance and displaced the pore water in the reservoirs near source rocks.

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Section: Geological Settingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Reservoir Densification, Pressure Evolution, and Natural Gas Accumulation in the Upper Paleozoic Tight Sandstones in the North Ordos Basin, China

Wang

Shi

et al. 2022

Energies

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“…The Yimeng Uplift, situated in the northern Ordos Basin, is composed of Triassic, Jurassic, and Cretaceous strata with minor Cenozoic sediments, which are shallowly dipping to the southwest (Figure 1b). During the Meso‐Neoproterozo, NW‐WNW grabens were widely developed, which were filled with volcanic‐clastic sediments (Bai, Yang, Lei, & Zhang, 2020; Chang, Ying, Zhou, & Wang, 1994). The sedimentary environment experienced a transformation from the marine to the continental environment during the early Permian.…”

Section: Geological Backgroundmentioning

confidence: 99%

“…During the Meso-Neoproterozo, NW-WNW grabens were widely developed, which were filled with volcanic-clastic sediments (Bai, Yang, Lei, & Zhang, 2020;Chang, Ying, Zhou, & Wang, 1994). The sedimentary environment experienced a transformation from the marine to the continental environment during the early Permian.…”

Section: Geological Backgroundmentioning

confidence: 99%

Detrital zircon analysis of the Mesozoic strata in the northern Ordos Basin: Revealing the source‐to‐sink relationships and tectonic settings

Cheng

Tang

et al. 2022

Geological Journal

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The Geo‐chronology of the Mesozoic sequences from the northern Ordos Basin provides an excellent window for understanding the source‐to‐sink analysis and tectonic settings. In this study, nine groups of detrital zircon U–Pb ages from the Middle Triassic to Lower Cretaceous strata of the northern Ordos Basin are presented. Three dominant age groups are revealed through the kernal density estimation: ca. 2,300 ~ 2,500 Ma (Siderian), ca. 2,050 ~ 1,800 Ma (Orosirian), and ca. 358.9 ~ 298.9 Ma (Carboniferous). Significant differences are distinguished according to multidimensional scaling analysis and cumulative distribution function. The Middle Triassic sample is the closest to the Yin Mts and the upper Triassic and lower Jurassic samples have significant similarities with the Jining area. The samples YA‐1 and ZL‐1 from the Middle Jurassic sequences are the closest to the Daqing Mts (DQS) and Wula Mts (WLS), respectively. The sample ZL‐1 is the second closest to the DQS. The sample YJ‐1 from the Lower Cretaceous sequences has apparent affinities with multiple resources, including the DQS, WLS and samples EM‐1 and AD‐1, while the sample LH‐1 only resembles the sample YA‐1. Overall, the northern Ordos Basin experienced three stages of transformations in the source areas: (a) Southward migration during the Middle Triassic and the Early Jurassic; (b) Westward migration during the Early Jurassic and latest Middle Jurassic; (c) Southward migration during the latest Middle Jurassic, and multiple resources and recycled sediments for the Cretaceous sequences. The transition to the North China Craton's (NCC) extensional tectonic setting was closely related to the transformation from the Palaeo‐Asian Ocean's closure to the Palaeo‐Pacific Plate's subduction during the Early Jurassic. The multiple resources and recycled resources for the Lower Cretaceous sequences were related to the destruction of the NCC.

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“…Previous exploration activities were mainly focused on the Sulige, Yulin, Wushenqi, Zizhou, and Daniudi gas fields within the Ordos Basin [3,9,11,12]. However, with the exploration of Dongsheng gas field in recent years, increasing attention has been paid to the Upper Paleozoic sandstone in the Hangjinqi area of northern Ordos Basin [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Diagenetic–Porosity Evolution and Reservoir Evaluation in Multiprovenance Tight Sandstones: Insight from the Lower Shihezi Formation in Hangjinqi Area, Northern Ordos Basin

et al. 2022

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The reservoir property of tight sandstones is closely related to the provenance and diagenesis, and multiprovenance system and complex diagenesis are developed in Hangjinqi area. However, the relationship between provenance, diagenesis, and physical characteristics of tight reservoirs in Hangjinqi area has not yet been reported. The Middle Permian Lower Shihezi Formation is one of the most important tight gas sandstone reservoirs in the Hangjinqi area of Ordos Basin. This research compared the diagenesis-porosity quantitative evolution mechanisms of Lower Shihezi Formation sandstones from various provenances in the Hangjinqi area using thin-section descriptions, cathodoluminescence imaging, X-ray diffraction (XRD), scanning electron microscopy (SEM), and homogenization temperature of fluid inclusions, along with general physical data and high-pressure mercury intrusion (HPMI) data. The sandstones mainly comprise quartzarenite, sublitharenite, and litharenite with low porosity and low permeability and display obvious zonation in the content of detrital components as a result of multiprovenance. Pore space of those sandstone mainly consists of primary pores, secondary pores, and microfractures, but their proportion varies in different provenances. According to HPMI, the order of the pore-throat radius from largest to smallest is central provenance, eastern provenance, and western provenance, which is consistent with the change tend of porosity (middle part>northern part>western part) in Hangjinqi region. The diagenetic evolution path of those sandstones is comparable, with compaction, cementation, dissolution, and fracture development. The central provenance has the best reservoir quality, followed by the eastern provenance and the western provenance, and this variation due to the diverse diagenesis (diagenetic stage and intensity) of different provenances. These findings reveal that the variations in detrital composition and structure caused by different provenances are the material basis of reservoir differentiation, and the main rationale for reservoir differentiation is varying degrees of diagenesis during burial process.

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Effect of tectonic evolution on hydrocarbon charging time: A case study from Lower Shihezi Formation (Guadalupian), the Hangjinqi area, northern Ordos, China

Cited by 14 publications

References 38 publications

Reservoir Densification, Pressure Evolution, and Natural Gas Accumulation in the Upper Paleozoic Tight Sandstones in the North Ordos Basin, China

Reservoir Densification, Pressure Evolution, and Natural Gas Accumulation in the Upper Paleozoic Tight Sandstones in the North Ordos Basin, China

Detrital zircon analysis of the Mesozoic strata in the northern Ordos Basin: Revealing the source‐to‐sink relationships and tectonic settings

Diagenetic–Porosity Evolution and Reservoir Evaluation in Multiprovenance Tight Sandstones: Insight from the Lower Shihezi Formation in Hangjinqi Area, Northern Ordos Basin

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