Jithin S. Kumar, Ramesh Kannan Kandasami, Jitendra S. Sangwai
{"title":"Formation and evolution of particle migration zones for different drilling fluid compositions in porous media","authors":"Jithin S. Kumar, Ramesh Kannan Kandasami, Jitendra S. Sangwai","doi":"10.1007/s11440-024-02316-w","DOIUrl":null,"url":null,"abstract":"<div><p>Flow of suspensions through the complex porous network is typically characterized by the initial spurt and then the formation of internal/ external filter cake which impedes the flow velocity. The transient mechanisms involved during the particle migration phenomenon need to be studied carefully as it is crucial for effectively managing the flow characteristics of drilling fluids and their impact on subsurface reservoirs. In this study, constant pressure permeation experiments are carried out using a specially designed apparatus to quantify the formation and evolution of particle migration zones using advanced image processing algorithms. Additionally, a comprehensive pre-test and post-test characterization of drilling fluids/ filtrates and the porous medium revealed intricate insights into the dynamics of particle migration. Four distinct particle migration/ filtration zones such as internal filter cake, primary filtration, secondary filtration and fluid loss are identified based on the change in the concentration gradient. The influence of additives on the growth of these zones is quantified during the filtration process. The concentration of barite/ micronized calcium carbonate and xanthan gum predominantly controls the filtration process by enhancing the particle plugging and retention time, respectively. In addition to the in-depth understanding of the particle migration zones, the transition from kinetic to capillary flow is identified by performing the fractal analysis. The analysis revealed that drilling fluid containing more barite exhibits a dominant capillary flow. Finally, an analytical model has been modified by considering the influence of different additives to predict the depth of penetration, which is comparable with the experimental results.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":null,"pages":null},"PeriodicalIF":5.6000,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Geotechnica","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11440-024-02316-w","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Flow of suspensions through the complex porous network is typically characterized by the initial spurt and then the formation of internal/ external filter cake which impedes the flow velocity. The transient mechanisms involved during the particle migration phenomenon need to be studied carefully as it is crucial for effectively managing the flow characteristics of drilling fluids and their impact on subsurface reservoirs. In this study, constant pressure permeation experiments are carried out using a specially designed apparatus to quantify the formation and evolution of particle migration zones using advanced image processing algorithms. Additionally, a comprehensive pre-test and post-test characterization of drilling fluids/ filtrates and the porous medium revealed intricate insights into the dynamics of particle migration. Four distinct particle migration/ filtration zones such as internal filter cake, primary filtration, secondary filtration and fluid loss are identified based on the change in the concentration gradient. The influence of additives on the growth of these zones is quantified during the filtration process. The concentration of barite/ micronized calcium carbonate and xanthan gum predominantly controls the filtration process by enhancing the particle plugging and retention time, respectively. In addition to the in-depth understanding of the particle migration zones, the transition from kinetic to capillary flow is identified by performing the fractal analysis. The analysis revealed that drilling fluid containing more barite exhibits a dominant capillary flow. Finally, an analytical model has been modified by considering the influence of different additives to predict the depth of penetration, which is comparable with the experimental results.
期刊介绍:
Acta Geotechnica is an international journal devoted to the publication and dissemination of basic and applied research in geoengineering – an interdisciplinary field dealing with geomaterials such as soils and rocks. Coverage emphasizes the interplay between geomechanical models and their engineering applications. The journal presents original research papers on fundamental concepts in geomechanics and their novel applications in geoengineering based on experimental, analytical and/or numerical approaches. The main purpose of the journal is to foster understanding of the fundamental mechanisms behind the phenomena and processes in geomaterials, from kilometer-scale problems as they occur in geoscience, and down to the nano-scale, with their potential impact on geoengineering. The journal strives to report and archive progress in the field in a timely manner, presenting research papers, review articles, short notes and letters to the editors.