Abstract Phyllosilicates, specifically, the kaolinite clay mineral (Al2Si2O5(OH)4), which is a layered silicate mineral with one silica tetrahedral sheet connected with oxygen atoms to one alumina octahedral octahedral sheet is ubiquitous and abundant in sedimentary basins, especially sandstone formations. This particular type of clay mineral fine particles can easily and rapidly cause reservoir formation damage in high temperature aquifers, geothermal, and petroleum reservoirs by detaching from the porous rock surface and migrate, and plug the pore-throats of the rock matrix. Several factors such as, reservoir temperature, pressure, geochemical alteration, permeating fluid, reactive flow, and multi-phase flow are attributed to the permeability decline of the porous rocks and subsequent fluid flow reduction, and consequently, leading to well productivity loss. Therefore, this paper presents laboratory modeling of fines transport in the hot porous sedimentary aquifer. This type of aquifer is located in sedimentary basins with the elevated heat flow and having a characteristic of a shallow depth and a high volume, which indicates a high natural porosity and permeability. In this work, we have conducted three sets of coreflood experiments in the temperature ranges of 125 °C 150 °C, and 175 °C. Kaolinite suspension water has been injected into the porous sandstone core at these temperatures to investigate the feasibility of a permeability and injectivity decline. The major experimental results revealed that there is an increase in water saturation and heat transfer rates. The concentration of fines surges with increasing PVI and permeability declines with increased time. Pressure soars with increasing Pore Volume Injection (PVI), but it stabilized after some time. Actually, PVI is a ratio of cumulative water injection to each pore chamber volume of the rock core. Importantly, the water discharge rate decreases with increasing suspension injection and on the other side, with fresh water injection, the rate of water discharge rises steadily. Furthermore, the experimental and mathematical models were tested against statistical model, multiple linear regression for validation. The modelling results showed good agreement and, therefore, this paper has explicated the significance of fines transport in aquifers under hot sedimentary basins.

中文翻译：

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高温多孔地下水环境中的高岭石细粒胶体-悬浮输运：对地热砂岩和热沉积含水层储层渗透率的影响

摘要 层状硅酸盐，具体而言，高岭石粘土矿物（Al2Si2O5(OH)4）是一种层状硅酸盐矿物，由一个二氧化硅四面体片与氧原子相连，一个氧化铝八面体片与一个氧化铝八面体片相连，在沉积盆地，尤其是砂岩地层中普遍存在和丰富。这种特殊类型的粘土矿物细颗粒通过从多孔岩石表面脱离、运移和堵塞岩石基质的孔喉，可以很容易、迅速地对高温含水层、地热和石油储层造成储层破坏。储层温度、压力、地球化学蚀变、渗透流体、反应流和多相流等几个因素归因于多孔岩石的渗透率下降和随后的流体流量减少，因此，导致井产能损失。因此，本文介绍了热多孔沉积含水层中细粒输送的实验室模拟。此类含水层位于沉积盆地，热流较高，具有浅深、大体积的特点，具有较高的天然孔隙度和渗透率。在这项工作中，我们在 125 °C、150 °C 和 175 °C 的温度范围内进行了三组岩心驱替实验。在这些温度下将高岭石悬浮水注入多孔砂岩岩心，以研究渗透率和注入率下降的可行性。主要的实验结果表明，水饱和度和传热率都有所增加。细粒的浓度随着 PVI 的增加而激增，渗透率随着时间的增加而下降。压力随着孔隙体积注入 (PVI) 的增加而飙升，但一段时间后稳定下来。实际上，PVI 是累积注水量与岩心每个孔隙室体积的比值。重要的是，随着悬浮液注入的增加，出水率下降，另一方面，随着注入淡水，出水率稳步上升。此外，针对统计模型、多元线性回归对实验和数学模型进行了测试以进行验证。模拟结果显示出良好的一致性，因此，本文阐明了热沉积盆地下含水层中细粒输送的重要性。PVI 是累积注水量与岩心每个孔隙室体积的比值。重要的是，随着悬浮液注入的增加，出水率下降，另一方面，随着注入淡水，出水率稳步上升。此外，针对统计模型、多元线性回归对实验和数学模型进行了测试以进行验证。模拟结果显示出良好的一致性，因此，本文阐明了热沉积盆地下含水层中细粒输送的重要性。PVI 是累积注水量与岩心每个孔隙室体积的比值。重要的是，随着悬浮液注入的增加，出水率下降，另一方面，随着注入淡水，出水率稳步上升。此外，针对统计模型、多元线性回归对实验和数学模型进行了测试以进行验证。模拟结果显示出良好的一致性，因此，本文阐明了热沉积盆地下含水层中细粒输送的重要性。用于验证的多元线性回归。模拟结果显示出良好的一致性，因此，本文阐明了热沉积盆地下含水层中细粒输送的重要性。用于验证的多元线性回归。模拟结果显示出良好的一致性，因此，本文阐明了热沉积盆地下含水层中细粒输送的重要性。