农业废弃物纳米二氧化硅作为水基泥浆防漏剂的性能评价

Q1 Earth and Planetary Sciences
Augustine Agi , Jeffrey O. Oseh , Afeez Gbadamosi , Cheo Kiew Fung , Radzuan Junin , Mohd Zaidi Jaafar
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引用次数: 3

摘要

混合水从钻井泥浆渗透或损失到多孔和可渗透的地层中是钻井操作过程中的常见问题。钻井泥浆的设计需要充分了解密封完整性以及影响泥浆桥接裸露岩石裂缝或孔喉的所有因素。漏失循环材料(LCM)通常被引入钻井泥浆中,以防止或最大限度地减少滤液损失。本研究使用湿磨法作为水基泥浆(WBM)中的LCM,研究了源自稻壳(RH)的二氧化硅纳米颗粒(SNP),称为RH-SNP。研究了RH-SNP对WBM流变性和滤失控制性能的影响。随后,使用不锈钢开槽滤盘测定RH-SNP在1mm和2mm模拟断裂中7分钟的密封完整性。将所开发的RH-SNP的性能与广泛应用的果壳进行了比较。2.0wt%的合成RH-SNP使WBM的屈服点和塑性粘度分别显著提高75%和386%,并使WBM在80°F下的流体损失最小化47%。这种增强是由于粒子能够有效地扩散并与WBM相互作用。在使用1mm和2mm模拟裂缝7min的情况下,加入0.5wt%、1.0wt%、1.5wt%和2.0wt%的RH-SNP,基础泥浆的泥浆损失体积分别减少了50%、66.7%、86%和90%(1mm)和40%、65.7%、77.1%和80%(2mm)。总体而言,结果表明,RH-SNP增强了钻井泥浆的密封完整性,并且与果壳相比更耐变形。这项研究的结果有助于更好地理解RH-SNP作为漏失剂的应用,因为与常用的果壳相比,RH-SNP具有更好的密封裂缝地层的能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance evaluation of nanosilica derived from agro-waste as lost circulation agent in water-based mud

Seepage or loss of the mix-water from the drilling muds into the porous and permeable formations is a common problem during drilling operation. The drilling mud design requires a good knowledge of sealing integrity and all the factors influencing the mud to bridge through fractures or pore throat of exposed rocks. Loss circulation materials (LCMs) are commonly introduced into the drilling mud to prevent or minimize filtrate loss. This study investigates silica nanoparticle (SNP) derived from rice husk (RH) termed RH-SNP using the wet-milling method as an LCM in water-based mud (WBM). The impact of the RH-SNP in the enhancement of rheology and filtrate loss control properties of WBM was studied. Subsequently, the sealing integrity of the RH-SNP in a 1 mm and 2 mm simulated fracture for 7 min was determined using a stainless-steel slotted filter disk. The performance of the developed RH-SNP was compared with the widely applied nutshell. The synthesized RH-SNP at amount of 2.0 wt% significantly enhanced the yield point and plastic viscosity of the WBM by 75% and 386%, respectively, and minimized the fluid loss of the WBM by 47% at 80 °F. The enhancement is due to the particles ability to spread and interact efficiently with the WBM. With the use of 1 mm and 2 mm simulated fracture for 7 min, the mud loss volume of the base mud reduced by 50%, 66.7%, 86%, and 90% (for 1 mm) and 40%, 65.7%, 77.1%, and 80% (for 2 mm) with the inclusion of 0.5 wt%, 1.0 wt%, 1.5 wt%, and 2.0 wt% of RH-SNP, respectively. Overall, the results showed that RH-SNP enhanced the seal integrity of the drilling mud and was more resistant to deformation compared to the nutshell. The findings of this study can help for better understanding of the application of RH-SNP as a loss circulation agent owing to its superior ability to seal fractured formation compared with the often used nutshell.

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来源期刊
Petroleum Research
Petroleum Research Earth and Planetary Sciences-Geology
CiteScore
7.10
自引率
0.00%
发文量
90
审稿时长
35 weeks
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