3D-Basin Modeling of the Changling Depression, NE China: Exploring Petroleum Evolution in Deep Tight Sandstone Reservoirs

Zhang, Jinliang; Guo, Jiaqi; Li, Yang; Sun, Zhilei

doi:10.3390/en12061043

Cited by 7 publications

(4 citation statements)

References 63 publications

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“…Based on regional structure, the basin can further be subdivided into ten secondary structural units, including Sanzhao Sag, Qijia-Gulong Sag, Changling Sag, Fuyu Uplift, Daqing Placanticline, etc. [34]. The Qingshankou Formation's sedimentary period was a large-scale lacustrine flooding period.…”

Section: Geological Settingsmentioning

confidence: 99%

Lithofacies and Source Rock Quality of Organic-Rich Shales in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

et al. 2022

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The organic-rich shale of the Qingshankou Formation (K2qn) is the most important target in the Songliao Basin. The relationship between lithofacies and source rock quality, however, is still controversial. Core observation, thin section identification, X-ray diffraction, organic geochemistry, and other analytical methods were adopted to investigate the petrology and its effects on hydrocarbon potential of the Qingshankou shale. Based on the differences in minerals, bioclastic, and fabric of laminae, four main lithofacies were defined as: (i) felsic shale (FS), (ii) clay shale (CS), (iii) bio-bearing shale (BS), and (iv) mixed shale (MS). The clay minerals content in the CS (average: 46.72 wt%) and MS (average: 41.11 wt%) was higher than that in FS (average: 39.97 wt%) and BS (average: 35.48 wt%). This classification allows the following comparative quantification of total organic carbon (TOC) content to be differentiated: CS > BS > MS > FS. Geochemical analysis indicated that the oil generation potential of the CS was the best, and the hydrocarbons generated from CS might migrate and accumulate in other lithofacies. All this knowledge could shed light on the lithofacies classification in shale systems with high clay mineral content, and may provide references for sweet spotting of the Qingshankou Formation in the Songliao Basin.

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Section: Geological Settingsmentioning

confidence: 99%

Lithofacies and Source Rock Quality of Organic-Rich Shales in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

et al. 2022

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“…Standard values for φ 0 and c have been derived from the literature (e.g. Berra & Carminati, 2010; Schmoker & Halley, 1982; Sclater & Christie, 1980; Zhang, Guo, Li, & Sun, 2019; Table 1).…”

Section: Methodsmentioning

confidence: 99%

Salt tectonics in a double salt‐source layer setting (Eastern Persian Gulf, Iran): Insights from interpretation of seismic profiles and sequential cross‐section restoration

et al. 2020

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Salt tectonics in the Eastern Persian Gulf (Iran) is linked to a unique salt‐bearing system involving two overlapping ‘autochthonous’ mobile source layers, the Ediacaran–Early Cambrian Hormuz Salt and the Late Oligocene–Early Miocene Fars Salt. Interpretations of reflection seismic profiles and sequential cross‐section restorations are presented to decipher the evolution of salt structures from the two source layers and their kinematic interaction on the style of salt flow. Seismic interpretations illustrate that the Hormuz and Fars salts started flowing in the Early Palaeozoic (likely Cambrian) and Early Miocene, respectively, shortly after their deposition. Differential sedimentary loading (downbuilding) and subsalt basement faults initiated and localized the flow of the Hormuz Salt and the related salt structures. The resultant diapirs grew by passive diapirism until Late Cretaceous, whereas the pillows became inactive during the Mesozoic after a progressive decline of growth in the Late Palaeozoic. The diapirs and pillows were then subjected to a Palaeocene–Eocene contractional deformation event, which squeezed the diapirs. The consequence was significant salt extrusion, leading to the development of allochthonous salt sheets and wings. Subsequent rise of the Hormuz Salt occurred in wider salt stocks and secondary salt walls by coeval passive diapirism and tectonic shortening since Late Oligocene. Evacuation and diapirism of the Fars Salt was driven mainly by differential sedimentary loading in annular and elongate minibasins overlying the salt and locally by downslope gliding around pre‐existing stocks of the Hormuz Salt. At earlier stages, the Fars Salt flowed not only towards the pre‐existing Hormuz stocks but also away from them to initiate ring‐like salt walls and anticlines around some of the stocks. Subsequently, once primary welds developed around these stocks, the Fars Salt flowed outwards to source the peripheral salt walls. Our results reveal that evolving pre‐existing salt structures from an older source layer have triggered the flow of a younger salt layer and controlled the resulting salt structures. This interaction complicates the flow direction of the younger salt layer, the geometry and spatial distribution of its structures, as well as minibasin depocentre migration through time. Even though dealing with a unique case of two ‘autochthonous’ mobile salt layers, this work may also provide constraints on our understanding of the kinematics of salt flow and diapirism in other salt basins having significant ‘allochthonous’ salt that is coevally affected by deformation of the deeper autochthonous salt layer and related structures.

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“…Figure 7 demonstrates the overlapping of different sedimentary rocks that form a region of interest for the oil industry. When a deposit is depleted, it can serve to accumulate other types of materials in addition to the kilometer-deep well (ZHANG et al, 2019). (2019) These could be in different geolocations and can be transported in different modes within the special transport conditions required, depending on the product, and, as exemplified in some modes.…”

Section: Figure 5a -Sedimentary Basin Formationmentioning

confidence: 99%

The reengineering of the disengineering of oil and gas wells

Lima¹,

Hamzagic²

2022

Revista Científica Multidisciplinar Núcleo do Conhecimento

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Reengineering is a term created in the 80s, which focuses on rethinking the way companies carry out their activities, in order to reduce costs, improve customer service and become more competitive. Disengineering, on the other hand, considers what to do with the industrial facilities once the enterprise is no longer in activity. This time, this article aims to answer the following guiding question: What are the possibilities of using structures and materials from already depleted wells using the concepts of Reengineering of Disengineering? After the document analysis, it was possible to establish an alternative proposal to increase the useful life of Oil and Gas wells through the applied concepts.

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3D-Basin Modeling of the Changling Depression, NE China: Exploring Petroleum Evolution in Deep Tight Sandstone Reservoirs

Cited by 7 publications

References 63 publications

Lithofacies and Source Rock Quality of Organic-Rich Shales in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

Lithofacies and Source Rock Quality of Organic-Rich Shales in the Cretaceous Qingshankou Formation, Songliao Basin, NE China

Salt tectonics in a double salt‐source layer setting (Eastern Persian Gulf, Iran): Insights from interpretation of seismic profiles and sequential cross‐section restoration

The reengineering of the disengineering of oil and gas wells

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