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To reduce environmental impacts, geothermal reservoirs are explored as a clean renewable option, but pressure-transient analysis methods developed for hydrocarbon reservoirs fail under geothermal assumptions. This study investigates cold water injection impacts on geothermal pressure transient behavior by varying injectate temperature from room temperature to reservoir temperature, addressing mismatches between real and predicted fluid-property variations over time.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/reservoir-modelling-to-predict-the-effect-of-cold-water-injection-in-geothermal-pressure-transient-analysis/625585/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/reservoir-modelling-to-predict-the-effect-of-cold-water-injection-in-geothermal-pressure-transient-analysis/625585.png","ImageObject",300,407,{"name":92,"@type":93},"Oliver","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-30","2026-10-20",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Why is pressure transient analysis challenging for geothermal reservoirs?","Question",{"text":112,"@type":113},"The analytical assumptions used for hydrocarbon reservoirs are not satisfied in geothermal reservoirs, leading to gaps between reality and prediction.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What variable is studied in this paper regarding cold water injection?",{"text":117,"@type":113},"The injectate cold water temperature is varied from room temperature to the reservoir temperature to assess its effect on pressure transient analysis.",{"name":119,"@type":110,"acceptedAnswer":120},"Why are geothermal reservoirs considered important for energy development?",{"text":121,"@type":113},"Geothermal reservoirs offer a clean, renewable energy source that can help address global energy needs and the environmental impacts of non-renewable fuel use.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},625585,1792811135,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":29,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},8796095461610,"https://ap-avatar.wpscdn.com/davatar_276721f389ce27ea32af1340a28f341c","# Reservoir Modelling to Predict the Effect of Cold Water Injection inGeothermal Pressure Transient Analysis\n\nPurnayan Mitra,University of Petroleum &Energy Studies;Nihal Mounir Darraj,Imperial College London  \nCopynight 2023,Society of Petroleum Engineers DOI 10.2118/212615-MS  \nThis paper was prepared for presentation at the SPE Reservoir Characterisation and Simulation Conference and Exhibition held in Abu Dhabi,UAE,24-26 January2023.  \nThis paper was selected for presentation by an SPE program committee following review of information contained in an abstract submitted by the author(s).Contentsof the paper have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s).The material does not necessarily reflectany position of the Society of Petroleum Engineers,its officers,or members.Electronic reproduction,distribution,or storage of any part of this paper without the writtenconsent of the Society of Petroleum Engineers is prohibited.Permission to reproduce in print is restricted to an abstract of not more than 300 words;ilustrations maynot be copied.The abstract must contain conspicuous acknowledgment of SPE copyright.  \n## Abstract\n\nEnergy is one of the major components for defining the overall development of a country.Mankind utilizesenergy to meet the requirements of daily processes.This energy can be extracted from the renewable as wellas the non-renewable sources of energy.With global rise in the usage of non-renewable energy sources,there is a much concern for the green house gas emissions and climate change.Renewable sources ofenergy are therefore being exploited to reduce the consumption of conventional fuels and overall reducethe environmental impacts.While solar,wind and tidal energy have been in scope of research,geothermalreservoirs are also proving their potential as a renewable source of energy.Geothermal reservoirs are oneof the cleanest and renewable sources of energy which can meet the rising global energy crisis.Properexploration and exploitation of geothermal energy is therefore one of the key objectives of reservoirengineers to adopt this energy source.The challenge which lies is to find best fit analytical methods forpressure transient analysis of geothermal reservoirs.This is because the assumptions made to predict thepressure transient analysis in hydrocarbon reservoirs are not satisfied by geothermal reservoirs.Based onextended studies it has been assumed to choose the properties of injected fluid in the reservoir conditions.But the gap between the reality and prediction couldn't be minimized as the properties of the hot and coldfluid in the reservoir conditions vary non-uniformly with respect to time.In this paper the impact of coldwater injection on pressure transient analysis of geothermal reservoir is studied by varying the temperatureof the injectate cold water from room temperature to reservoir temperature.  \n## Introduction\n\nDevelopment ofa country is defined by its energy consumption.When a country develops economically,theper person consumption of energy too increases.Since the human history energy has been utilized to meetthe requirements of daily activities be it domestic,industrial or commercial.Even transportation requiresenergy.Rising human population has required increased needs ofenergy through out the globe.While globalenergy demand is fulfilled by the conventional fuels like coal,crude and natural gas on a large scale,yet theenvironmental degradation caused by them is havoc.The air pollutants which are estimated to significantlycause the degradation include oxides of nitrogen(NOx),sulfur(Sox),Volatile organic compounds(VOCs),  \nparticulate matters(PM)as well as Carbon monoxides(CO).Besides these pollutants,the green housegases including Carbon Dioxide(CO2),methane(CH4)and Nitrous oxides are also contributing to globalclimate changes.All these emissions are related to different types of energy utilization,consumption,andemission coefficien","cbCaillFme9dgHr5","https://ap.wps.com/l/cbCaillFme9dgHr5","pdf",2051950,"English","# Abstract\n# Introduction","[{\"question\":\"Why is pressure transient analysis challenging for geothermal reservoirs?\",\"answer\":\"The analytical assumptions used for hydrocarbon reservoirs are not satisfied in geothermal reservoirs, leading to gaps between reality and prediction.\"},{\"question\":\"What variable is studied in this paper regarding cold water injection?\",\"answer\":\"The injectate cold water temperature is varied from room temperature to the reservoir temperature to assess its effect on pressure transient analysis.\"},{\"question\":\"Why are geothermal reservoirs considered important for energy development?\",\"answer\":\"Geothermal reservoirs offer a clean, renewable energy source that can help address global energy needs and the environmental impacts of non-renewable fuel use.\"}]","Reservoir Modelling to Predict the Effect of Cold Water Injection inGeothermal Pressure Transient Analysis | PDF",1792531663,15]