Classifying Drilling Loss of Circulation in the Oil Fields of the Middle East through the Application of Neural Network Techniques

preprint OA: closed
Full text JSON View at publisher
AI-generated summary by claude@2026-07, 2026-07-14

This study developed and tested an artificial neural network model using 15,000 data points from Middle Eastern oil wells to accurately predict lost circulation zones with 94.5% accuracy.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

AI-generated deep summary by claude@2026-07, 2026-07-14 · read from full text

This preprint studied how to classify drilling fluid loss (“lost circulation”) and identify thief zones in Middle East oil wells using an artificial neural network that incorporates operational drilling parameters along with rock and drilling fluid physical properties. Using 15,000 collected data points, the authors trained and tested a network with 30 neurons and one hidden layer, using a 70%/30% train-test/validation split, and reported 94.5% accuracy in predicting lost circulation zone locations. The paper is presented as a preprint and is explicitly not peer reviewed, and no additional limitations are stated in the provided text. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

Read from the paper's body, not the abstract. Not a substitute for reading the paper. No clinical advice. How this works

Abstract

Abstract One of the most common drilling operation problems is drilling fluid loss, which can cause an intensive increase in well expenditure as well as more complex drilling operation issues such as pipe sticking, blowout, and even the closure of the well. Identifying thief zones and the amount of fluid loss using analytical models is particularly difficult, and there are no robust equations available in the literature due to a wide range of influential parameters, both controllable and uncontrollable. These parameters include operational factors, as well as the physical properties of the rock and drilling fluid.This study presents an artificial intelligence-based model designed to predict the loss circulation and identify loss zones. The model accounts for various factors in the drilling process, as well as the physical properties of the rock, and the drilling fluid. In this research study, a total of 15000 data points were collected from oil wells in the Middle East. In the process of the artificial intelligence model development, 30 neurons and one hidden layer were employed in the training and testing phase with the optimum settings; 70% of the dataset is used for training, and 30% is used for testing and validation.The ANN model exhibited a remarkable ability to accurately predict the locations of lost circulation zones based on the collected data, achieving an impressive accuracy of 94.5%. This is a significant achievement when compared to existing ANN models in the literature. The results highlight the strength of the ANN model in predicting lost circulation locations across a wide range of data collected from various wells in the Middle East. Furthermore, this model takes into account a diverse set of drilling operational parameters, as well as rock characteristics and fluid properties, making it innovative compared to other available ANN models. Furthermore, this advancement will greatly facilitate future studies and make it possible to predict the lost circulation zones and volume, and plan in advance for the use of appropriate prevention and remediation methods in the well planning phase to reduce the risk of mud loss.
Full text 19,793 characters · extracted from preprint-html · click to expand
Classifying Drilling Loss of Circulation in the Oil Fields of the Middle East through the Application of Neural Network Techniques | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Classifying Drilling Loss of Circulation in the Oil Fields of the Middle East through the Application of Neural Network Techniques Reda Abdel Azim, Mohammed Namuq, Arkan Goma This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7949548/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract One of the most common drilling operation problems is drilling fluid loss, which can cause an intensive increase in well expenditure as well as more complex drilling operation issues such as pipe sticking, blowout, and even the closure of the well. Identifying thief zones and the amount of fluid loss using analytical models is particularly difficult, and there are no robust equations available in the literature due to a wide range of influential parameters, both controllable and uncontrollable. These parameters include operational factors, as well as the physical properties of the rock and drilling fluid. This study presents an artificial intelligence-based model designed to predict the loss circulation and identify loss zones. The model accounts for various factors in the drilling process, as well as the physical properties of the rock, and the drilling fluid. In this research study, a total of 15000 data points were collected from oil wells in the Middle East. In the process of the artificial intelligence model development, 30 neurons and one hidden layer were employed in the training and testing phase with the optimum settings; 70% of the dataset is used for training, and 30% is used for testing and validation. The ANN model exhibited a remarkable ability to accurately predict the locations of lost circulation zones based on the collected data, achieving an impressive accuracy of 94.5%. This is a significant achievement when compared to existing ANN models in the literature. The results highlight the strength of the ANN model in predicting lost circulation locations across a wide range of data collected from various wells in the Middle East. Furthermore, this model takes into account a diverse set of drilling operational parameters, as well as rock characteristics and fluid properties, making it innovative compared to other available ANN models. Furthermore, this advancement will greatly facilitate future studies and make it possible to predict the lost circulation zones and volume, and plan in advance for the use of appropriate prevention and remediation methods in the well planning phase to reduce the risk of mud loss. Lost circulation of Oil/Gas well Predicting lost circulation zones ANN application for lost circulation problems Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7949548","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":553631590,"identity":"3fa2c1c8-e500-42e5-82be-169c8064afc7","order_by":0,"name":"Reda Abdel Azim","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABE0lEQVRIie3QsWqDQBjA8U+Eczlx/Upi+woHB2nAl1EKcXELFIcMBwWzxblvYckLCAdmue4WsmRxymCXYpbQq1mvCd063B8O/MTfcSeAzfY/Y3rVjvAu0zQAcGFcFACvEvcy0TvxZ8LqG+Rx/fLWw2ofVtI/fA65pHynOIM8SgR9P7QGMlXNEqHpeCU9PqFK0pnKeAwqTYS/5nMDQcwYApFJJQlMnEKTOuO1fkhEQIjpYPhw5AOcR+KeTprw8qjJ+QpBOsOfPTUh6GvCUB/MEZr4hZnQxfM82XT8VZOIqpRi2y1Z3KS8oI1rvIsnt23/tQ83u8L9GPLoPiifttivorCkC8f0x8Zi4xvy2+c2m81mu9k3FbBhEwSP06MAAAAASUVORK5CYII=","orcid":"","institution":"The American University of Kurdistan","correspondingAuthor":true,"prefix":"","firstName":"Reda","middleName":"Abdel","lastName":"Azim","suffix":""},{"id":553631591,"identity":"218fc248-1110-421e-b690-dc47c2c78ba9","order_by":1,"name":"Mohammed Namuq","email":"","orcid":"","institution":"The American University of Kurdistan","correspondingAuthor":false,"prefix":"","firstName":"Mohammed","middleName":"","lastName":"Namuq","suffix":""},{"id":553631592,"identity":"8e960cc5-4bb6-47de-984e-8fa802ac98d3","order_by":2,"name":"Arkan Goma","email":"","orcid":"","institution":"The American University of Kurdistan","correspondingAuthor":false,"prefix":"","firstName":"Arkan","middleName":"","lastName":"Goma","suffix":""}],"badges":[],"createdAt":"2025-10-27 11:06:20","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7949548/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7949548/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":97664878,"identity":"05bac0b7-86f0-4c0a-8c67-1f218acc0e6c","added_by":"auto","created_at":"2025-12-08 09:15:15","extension":"docx","order_by":0,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":5224792,"visible":true,"origin":"","legend":"","description":"","filename":"ManuscriptDrilling.docx","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/7dd3ed6c5677f3f4019eab10.docx"},{"id":97394387,"identity":"fed88e62-c248-4a64-9b13-5b59be13dfec","added_by":"auto","created_at":"2025-12-03 23:48:58","extension":"json","order_by":1,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":5953,"visible":true,"origin":"","legend":"","description":"","filename":"9d739e63ee494f0783c0dd058f3b5512.json","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/6f98496b48ffdafe1328f1a8.json"},{"id":97666747,"identity":"8eee55a1-75ce-4b87-95f7-368f0542d046","added_by":"auto","created_at":"2025-12-08 09:22:03","extension":"xml","order_by":2,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":120467,"visible":true,"origin":"","legend":"","description":"","filename":"9d739e63ee494f0783c0dd058f3b55121enriched.xml","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/eb021598361f52a22f291c9c.xml"},{"id":97665176,"identity":"6acf14eb-581c-4695-b511-8162ebf5b5fc","added_by":"auto","created_at":"2025-12-08 09:17:06","extension":"eps","order_by":4,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":8851989,"visible":true,"origin":"","legend":"","description":"","filename":"drawingimage2.eps","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/9f324b1bb647fb6c5c236751.eps"},{"id":97394403,"identity":"ab7102fa-ac41-41a8-a02e-c79ff3e9af9d","added_by":"auto","created_at":"2025-12-03 23:48:59","extension":"eps","order_by":5,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":8706955,"visible":true,"origin":"","legend":"","description":"","filename":"drawingimage3.eps","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/71255d58a39508c9b9745637.eps"},{"id":97394390,"identity":"c54e04bc-8ae5-4203-9168-c86f80abed33","added_by":"auto","created_at":"2025-12-03 23:48:58","extension":"eps","order_by":7,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":1447,"visible":true,"origin":"","legend":"","description":"","filename":"drawingimage5.eps","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/b465c58ebc36ff6042629b03.eps"},{"id":97665232,"identity":"995acef1-0770-4581-9bd8-f9c13258ea8b","added_by":"auto","created_at":"2025-12-08 09:17:32","extension":"png","order_by":8,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":2049566,"visible":true,"origin":"","legend":"","description":"","filename":"floatimage1.png","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/5ede3c5300f5fc45c111d629.png"},{"id":97665284,"identity":"87e9339e-4c04-4538-a836-5d7babc798fc","added_by":"auto","created_at":"2025-12-08 09:17:42","extension":"jpeg","order_by":9,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":193506,"visible":true,"origin":"","legend":"","description":"","filename":"floatimage2.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/8bcf1acfa4e5f541b5f95a2a.jpeg"},{"id":97666409,"identity":"20ea9945-0e0b-4979-8b47-e99fda9466f0","added_by":"auto","created_at":"2025-12-08 09:21:09","extension":"jpeg","order_by":10,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":8817,"visible":true,"origin":"","legend":"","description":"","filename":"groupimage1.jpeg","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/766e221ef551771bb37b3c7d.jpeg"},{"id":97665956,"identity":"34aae157-f6b7-4a3a-8f6e-3d906198d51b","added_by":"auto","created_at":"2025-12-08 09:20:09","extension":"wmf","order_by":11,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":1734,"visible":true,"origin":"","legend":"","description":"","filename":"image1.wmf","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/46f0b4742a1a99b83948037a.wmf"},{"id":97667078,"identity":"2d8c5d7d-2d0f-464e-a2af-ddf92ef2c8b6","added_by":"auto","created_at":"2025-12-08 09:22:42","extension":"wmf","order_by":12,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":1950,"visible":true,"origin":"","legend":"","description":"","filename":"image2.wmf","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/a57e9ef4e7d9463c12b4088a.wmf"},{"id":97666323,"identity":"6bb3281f-424d-4f7d-9262-8a4bf80fafec","added_by":"auto","created_at":"2025-12-08 09:21:00","extension":"png","order_by":13,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":329202,"visible":true,"origin":"","legend":"","description":"","filename":"Onlinefloatimage1.png","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/44ad0f6dc32c170f2f62a489.png"},{"id":97394397,"identity":"a24a2ff2-02f7-484a-9064-3764ef7db595","added_by":"auto","created_at":"2025-12-03 23:48:58","extension":"png","order_by":14,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":34437,"visible":true,"origin":"","legend":"","description":"","filename":"Onlinefloatimage2.png","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/aa1ab59d1e54aa4c146bafe1.png"},{"id":97394394,"identity":"9f9e903c-6c38-496e-882b-ca62bcd8a8b0","added_by":"auto","created_at":"2025-12-03 23:48:58","extension":"png","order_by":15,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":2004,"visible":true,"origin":"","legend":"","description":"","filename":"Onlinegroupimage1.png","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/2a64ffdd15b2aae320a17b2a.png"},{"id":97665349,"identity":"915d58f2-f0b3-4770-a90b-7e107a3bb63d","added_by":"auto","created_at":"2025-12-08 09:17:56","extension":"png","order_by":16,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":1426,"visible":true,"origin":"","legend":"","description":"","filename":"Onlineimage1.png","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/1d1e9505af03ff3c732880ff.png"},{"id":97665376,"identity":"98da91bf-c18d-47ee-b67b-4cb9c1515cd6","added_by":"auto","created_at":"2025-12-08 09:18:06","extension":"png","order_by":17,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":1182,"visible":true,"origin":"","legend":"","description":"","filename":"Onlineimage2.png","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/43886804c853c00511a61ce8.png"},{"id":97394400,"identity":"7783c84f-954b-4155-843c-78f4def63fb1","added_by":"auto","created_at":"2025-12-03 23:48:58","extension":"xml","order_by":18,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":118027,"visible":true,"origin":"","legend":"","description":"","filename":"9d739e63ee494f0783c0dd058f3b55121structuring.xml","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/7dab50987d525c75bc5722ed.xml"},{"id":97394404,"identity":"01c6eea2-4392-45a2-8f65-e5987ff747ee","added_by":"auto","created_at":"2025-12-03 23:48:59","extension":"html","order_by":19,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":132838,"visible":true,"origin":"","legend":"","description":"","filename":"earlyproof.html","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1/ce4defb41ecb888237843322.html"},{"id":102963184,"identity":"f84703d9-49d5-427d-ae2f-e4c34a37c9cf","added_by":"auto","created_at":"2026-02-19 04:14:17","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":3299779,"visible":true,"origin":"","legend":"","description":"","filename":"ManuscriptDrilling.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7949548/v1_covered_70697658-094f-42c0-ae9e-482f63b7f0d5.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Classifying Drilling Loss of Circulation in the Oil Fields of the Middle East through the Application of Neural Network Techniques","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Lost circulation of Oil/Gas well, Predicting lost circulation zones, ANN application for lost circulation problems","lastPublishedDoi":"10.21203/rs.3.rs-7949548/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7949548/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eOne of the most common drilling operation problems is drilling fluid loss, which can cause an intensive increase in well expenditure as well as more complex drilling operation issues such as pipe sticking, blowout, and even the closure of the well. Identifying thief zones and the amount of fluid loss using analytical models is particularly difficult, and there are no robust equations available in the literature due to a wide range of influential parameters, both controllable and uncontrollable. These parameters include operational factors, as well as the physical properties of the rock and drilling fluid.\u003c/p\u003e\u003cp\u003eThis study presents an artificial intelligence-based model designed to predict the loss circulation and identify loss zones. The model accounts for various factors in the drilling process, as well as the physical properties of the rock, and the drilling fluid. In this research study, a total of 15000 data points were collected from oil wells in the Middle East. In the process of the artificial intelligence model development, 30 neurons and one hidden layer were employed in the training and testing phase with the optimum settings; 70% of the dataset is used for training, and 30% is used for testing and validation.\u003c/p\u003e\u003cp\u003eThe ANN model exhibited a remarkable ability to accurately predict the locations of lost circulation zones based on the collected data, achieving an impressive accuracy of 94.5%. This is a significant achievement when compared to existing ANN models in the literature. The results highlight the strength of the ANN model in predicting lost circulation locations across a wide range of data collected from various wells in the Middle East. Furthermore, this model takes into account a diverse set of drilling operational parameters, as well as rock characteristics and fluid properties, making it innovative compared to other available ANN models. Furthermore, this advancement will greatly facilitate future studies and make it possible to predict the lost circulation zones and volume, and plan in advance for the use of appropriate prevention and remediation methods in the well planning phase to reduce the risk of mud loss.\u003c/p\u003e","manuscriptTitle":"Classifying Drilling Loss of Circulation in the Oil Fields of the Middle East through the Application of Neural Network Techniques","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-03 23:48:54","doi":"10.21203/rs.3.rs-7949548/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"0f25f411-b042-4f35-b435-47bd6e06a519","owner":[],"postedDate":"December 3rd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-02-17T06:25:47+00:00","versionOfRecord":[],"versionCreatedAt":"2025-12-03 23:48:54","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7949548","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7949548","identity":"rs-7949548","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}

Text is read by the "Ask this paper" AI Q&A widget below. Extraction quality varies by source — PMC NXML preserves structure cleanly, OA-HTML may include some navigation residue, and OA-PDF can have broken hyphenation. The publisher copy (via DOI) is the canonical version.

My notes (saved in your browser only)

Ask this paper AI returns verbatim quotes from the full text · source: preprint-html

Answers must be backed by verbatim quotes from this paper's full text. Hallucinated quotes are dropped automatically; if no verbatim passage answers the question, we say so. How this works

Citation neighborhood (no data yet)

We don't have any in-corpus citations linked to this paper yet. This is a recent paper (2025) — citers typically take a year or two to land, and the OpenAlex reference graph may still be filling in.

Source provenance

europepmc
last seen: 2026-05-20T01:45:00.602351+00:00