Understanding the complexity of thin laminated sequences through reservoir characterization to identify the true potential in Krishna–Godavari offshore area (India): A case study

Boindala, Amitha; Vij, Rakesh Kumar; Avadhani, V. L. N.; Pandian, Sivakumar

doi:10.1080/10916466.2022.2149795

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Dry gas sealing technology has a wide range of applications in industrial and manufacturing fields, especially in high-speed rotating equipment and equipment with high sealing requirements. With the progress and innovation of science and technology, additional developments are expected in terms of improving efficiency, expanding applications, increasing reliability, and reducing costs [83][84][85][86].…”

Section: Development Trendmentioning

confidence: 99%

Research Progress on the Dynamic Stability of Dry Gas Seals

Zhang,

Ding,

Wang

et al. 2024

Processes

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Concerning the application of high-precision, enormous rotating equipment under harsh working conditions, the advantages of dry gas sealing technology are increasingly obvious. Herein, research on the dynamic stability of dry gas seals is reviewed based upon their operating mechanisms. The influence of the dry gas seal structure, vibration response, and dynamic followability on the reliability of the shaft end sealing system of rotating machinery is the focus of current dry gas sealing technology. This work reviews the research history; analyzes the key coefficient of the instability of the sealing system under external disturbances, and the existing research on stability models; discusses the influence of starting and stopping characteristics, working conditions, and groove parameters on the stability of dry gas seals; and points out the shortcomings in the existing research. In addition, potential developments in dynamic stability are proposed, including improving model accuracy, improving experimental techniques, or applying intelligent control and optimization methods to enhance the dynamic stability of the sealing system. Finally, the development prospects for dry gas sealing technology in intelligent monitoring and wide temperature range adaptations are discussed, and theoretical guidance for improving a dry gas seal system is provided.

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Section: Development Trendmentioning

confidence: 99%

Research Progress on the Dynamic Stability of Dry Gas Seals

Zhang,

Ding,

Wang

et al. 2024

Processes

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Characterization on Structure and Fractal of Shale Nanopore: A Case Study of Fengcheng Formation in Hashan Area, Junggar Basin, China

et al. 2023

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The Lower Permian Fengcheng Formation in Halaalate Mountain in the Junggar Basin has enormous potential for shale oil, while few investigations on quantifying pore structure heterogeneity have been conducted. Thus, total organic carbon (TOC), X-ray diffraction (XRD), scanning electron microscopy (SEM), and low-temperature N2 adsorption tests were conducted on the shales collected from the HSX1 well in the Hashan region to disclose the microscopic pore structure and its heterogeneity. Results show that the selected shales mainly consist of quartz, plagioclase, calcite, and clay minerals. The primary pore types are intergranular pores in quartz and carbonate and intragranular pores in clays, while organic matter (OM) pores are rare. Typical types of H2 and mixed H2-H3 were observed. Type H3 shale pore size distributions (PSD) are unimodal, with a peak at about 70 nm, while Type H2-H3 shales are bimodal, with peaks at about 70 nm and 3 nm, respectively. Type H3 shales have lower D2 than Type H2-H3 shale, corresponding to weaker pore structure heterogeneity. Multifractal analyses indicate that macropores in Type H3 shales have stronger heterogeneity with large D10−D0 ranges, while minor D−10−D0 ranges mean weaker heterogeneity of micro- and mesopores, and so do Types H2-H3 shales. The higher the contents of plagioclase and clay minerals, the more heterogeneous the micro- and mesopores are; a larger content of quartz leads to more heterogeneous macropores. Specific surface area, micro-, and mesopores contents positively correlate to D2, while average pore diameter and macropores are on the contrary, thus the higher the content of micro- and mesopores and the specific surface area, the lower the content of macropores and average pore diameter, the more complex the microscopic pore structure of shale. Micro- and mesopores control the heterogeneity of shale pore development with a great correlation of D−10−D0 and D−10−D10, and D2 can effectively characterize the heterogeneity of a high porosity area with a strong correlation of D2 and D0−D10.

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Understanding the complexity of thin laminated sequences through reservoir characterization to identify the true potential in Krishna–Godavari offshore area (India): A case study

Cited by 2 publications

References 14 publications

Research Progress on the Dynamic Stability of Dry Gas Seals

Research Progress on the Dynamic Stability of Dry Gas Seals

Characterization on Structure and Fractal of Shale Nanopore: A Case Study of Fengcheng Formation in Hashan Area, Junggar Basin, China

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