Optimal nanocone geometry for water flow

Sun, Zheng; Wang, Suran; Xiong, Hao; Wu, Keliu; Shi, Juntai

doi:10.1002/aic.17543

Cited by 51 publications

(27 citation statements)

References 57 publications

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“…The Shuntuoguole uplift formed in the middle Caledonian and underwent multiple tectonic activities, such as the Hercynian and Indo-china, forming the nowadays framework. A series of deep-seated and strike-slip faults, which intersect the strata from the crystalline basement through the Upper Ordovician Yijianfang Formation, are present in the Shuntuoguole uplift [7,8,19,20]. The Cambrian-Lower Ordovician in the Shunbei area is dominated by huge thick carbonate rocks, and then, the craton disappeared.…”

Section: Geological Settingmentioning

confidence: 99%

Characteristics of Middle-Lower Ordovician Ultradeeply Buried Carbonate Reservoirs in Shunbei Area, Tarim Basin—A Case Study from Well SHBP1

et al. 2022

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Fracture-pore complexes, located at fault zones of Darriwilian carbonates, are the main exploration targets in the Shunbei area, Tarim Basin. This article focuses on the carbonate characteristics in the Lower Ordovician of Well ShunbeiPeng1 (SHBP1), the carbonate is sandwiched by two trending NW-SE deep-seated, strike-slip faults in the Shuntuoguole uplift. Based on detailed core investigation and careful petrographic examination, two main reservoir types, denoting microquartz and dolomite, are recognized. The former is mainly constrained in the lower part of the sampled core and gradually evolves to the latter with progressively decreases of silica. Integrated isotopic geochemistry (C, O, and Sr) and fluid inclusion microthermometry suggest that the fluids are hydrothermal origin and migrate along deep-seated strike-slip faults, forming favorable carbonate reservoirs. The fault-controlled hydrothermal reservoirs, characterized by the strong amplitude in the seismic profile, would be the most promising exploration area in deeply buried carbonates in the Tarim Basin, particularly in the Shuntuoguole area.

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Section: Geological Settingmentioning

confidence: 99%

Characteristics of Middle-Lower Ordovician Ultradeeply Buried Carbonate Reservoirs in Shunbei Area, Tarim Basin—A Case Study from Well SHBP1

et al. 2022

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“…Driven by the pressure of the oil and gas reservoir, the light hydrocarbon gas in the oil and gas reservoir continuously diffuses and migrates vertically to surface, and the obligate microorganisms in the soil use the light hydrocarbon gas as their only energy source [21,22]. Microbial anomalies are well developed and formed in the surface soil directly above the reservoir.…”

Section: Technical Mechanism Of Mpogmentioning

confidence: 99%

Research on Application of Microbial Exploration Technology Based on Abnormal Index System

Yuan

Zhang

2022

Geofluids

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MPOG (microbial prospecting of oil and gas) technology has its unique advantages, and the microbial anomaly index system lays the basis for comprehensive evaluation of MPOG data and prospect prediction of target areas. In view of the problem that the current exploration technology is limited in the areas where seismic exploration is difficult to reach or difficult to implement, this article uses modern biotechnology to discuss the technical mechanism of microbial exploration technology and the indicators of abnormal technology system in detail, on the basis of known oil and gas properties of completed wells. In order to establish a reference system suitable for the actual geological characteristics of oilfields, and to further improve the index system for identifying oil and gas microbial abnormalities in oil and gas areas, specific microbial abnormal indicators are isolated, cultivated, and detected. Combining the geological characteristics of the work area, drilling and oil testing data, and classification evaluation of oil and gas-bearing areas, as well as oil and gas prospects, is performed. MPOG technology has a certain applicability in the evaluation of oil and gas properties. The research in this article can provide a favorable reference for the selection of favorable oil and gas zones and well location deployment.

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“…When the Knudsen number is less than 0.001, the flow velocity of gas molecules on the wall is zero, which is a continuous flow. The specific expression can be seen from Hagen Poiseuille [47].…”

Section: Slit Nanoporesmentioning

confidence: 99%

Effect of Pore Geometry on Nanoconfined Bulk-Gas Flow Behavior

Zhang

2022

Geofluids

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In order to improve energy consumption structure in Guizhou province, China, the efficient development of shale gas becomes more and more important. However, the theoretical understanding, towards microscopic gas flow mechanism, is still weak and insufficient. Although many models have been established, one part of them fails to cover all flow mechanisms, and the other part contains several fitting parameters. Moreover, nanopores can be divided into circular pore and slit pore in accordance with pore geometry. For cylindrical nanopores, by fully comparing with the existed models, a new bulk-gas transport model is proposed by weight superposition of slip flow and Knudsen diffusion, in which weight factors are obtained by Wu’s model and Knudsen’s model, respectively. For slit pores, an analytical equation for bulk-gas flow is proposed as well, which is free of any fitting parameters. The reliability of the proposed models has been clarified. The impacts of reservoir pressure, pore scale, and gas flow mechanism on bulk-gas flow behavior in process of shale gas development are analyzed. It is found that gas transport capacity of slit nanopores is significantly higher than that of cylindrical nanopores at the same pore scale. For slit nanopores, the larger the aspect ratio, the stronger bulk-gas transmission capacity. As the established models are free of fitting parameters and can be applied into the entire K n range with sufficient accuracy, the research will greatly benefit shale gas development.

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Optimal nanocone geometry for water flow

Cited by 51 publications

References 57 publications

Characteristics of Middle-Lower Ordovician Ultradeeply Buried Carbonate Reservoirs in Shunbei Area, Tarim Basin—A Case Study from Well SHBP1

Characteristics of Middle-Lower Ordovician Ultradeeply Buried Carbonate Reservoirs in Shunbei Area, Tarim Basin—A Case Study from Well SHBP1

Research on Application of Microbial Exploration Technology Based on Abnormal Index System

Effect of Pore Geometry on Nanoconfined Bulk-Gas Flow Behavior

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