مورد إلكتروني
DEVELOPMENT OF WATER-BASED DRILLING FLUID IN MITIGATION OF DIFFERENTIAL STICKING TENDENCY
| العنوان: | DEVELOPMENT OF WATER-BASED DRILLING FLUID IN MITIGATION OF DIFFERENTIAL STICKING TENDENCY |
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| عناروين إضافية: | PRIPREMA I ISPITIVANJE ISPLAKE NA BAZI VODE U SVRHU SMANJENJA SKLONOSTI DIFERENCIJALNOM PRIHVATU |
| المصدر: | Rudarsko-geološko-naftni zbornik; ISSN 0353-4529 (Print); ISSN 1849-0409 (Online); Volume 37; Issue 2 |
| بيانات النشر: | Faculty of Mining, Geology and Petroleum Engineering University of Zagreb 2022 |
| تفاصيل مُضافة: | Yalman, Emine Federer-Kovacs, Gabriella Depci, Tolga |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The objective of the study is to design a drilling fluid that prevents differential pressure pipe sticking tendency caused by drilling fluid with fly ash that is an industrial waste generated from the combustion of coal. To this end, drilling fluid samples were prepared with different particle sizes obtained through the sieving and grinding process and increasing concentrations of fly ash. Differential pipe sticking tests of the samples were performed by applying 3.447 MPa (500 psi) pressure and using a Fann Model 21150 Differential Sticking Tester in order to determine how the coefficient of sticking and torque reading varied with the fly ash. From the results, it was observed that the coefficient of sticking and torque reading of the water-based drilling fluids decreased up to a specific concentration as the concentration of fly ash increased. Furthermore, particle size analysis illustrated that the coefficient of sticking and torque of the drilling fluid differs depending on the particle size of fly ash introduced. The drilling fluid designed with ground fly ash demonstrated lower sticking coefficient and torque reading than that of drilling fluids formulated with raw and sieved fly ashes. The experimental study revealed that fly ash is a promising additive in the mitigation of differential sticking tendency caused by water-based drilling fluids. Cilj je ovoga istraživanja pripremiti isplaku uz dodatak lebdećega pepela, koji je industrijski otpad dobiven izgaranjem ugljena, koja će spriječiti pojavu diferencijalnoga prihvata bušaćih alatki. Ispitani su uzorci isplake koji su pripremljeni s različitim koncentracijama i veličinama čestica lebdećega pepela, dobivenim mljevenjem i prosijavanjem. Ispitivanje sklonosti diferencijalnom prihvatu u različitim uzorcima isplake provedeno je pri tlaku 3,447 MPa (500 psi) korištenjem uređaja Fann Model 21150, pri čemu je praćena promjena koeficijenta ljepljivosti i očitanja torzije s dodavanjem lebdećega pepela. Iz rezultata je vidljivo da se koeficijent ljepljivosti i očitanje torzije smanjuju s povećanjem koncentracije lebdećega pepela u isplaci. Nadalje, istraživanje je pokazalo da i koeficijent ljepljivosti i torzija ovise o raspodjeli veličine čestica lebdećega pepela u isplaci. Isplaka pripremljena s mljevenim lebdećim pepelom pokazala je niži koeficijent prianjanja i manje očitanje torzije u odnosu na isplake pripremljene s nemljevnim („sirovim”) ili prosijanim lebdećim pepelom. Istraživanje je pokazalo da bi se lebdeći pepeo mogao koristiti kao aditiv za smanjenje sklonosti diferencijalnom prihvatu u isplakama na bazi vode. |
| مصطلحات الفهرس: | differential sticking; fly ash; grinding; drilling fluids; differential sticking tester, diferencijalni prihvat; lebdeći pepeo; mljevenje; isplake; uređaj za ispitivanje sklonosti diferencijalnom prihvatu, text, info:eu-repo/semantics/article, info:eu-repo/semantics/publishedVersion |
| URL: | info:eu-repo/semantics/altIdentifier/doi/10.17794/rgn.2022.2.2 |
| الإتاحة: | Open access content. Open access content info:eu-repo/semantics/openAccess The author and publisher rights are visible during the submission process, and ethical codex is available at http://hrcak.srce.hr/ojs/index.php/rgn/about/editorialPolicies#custom-0 . The Bulletin is open access (OA, green model, CC-BY) journal what means that electronic versions of articles are accessible to readers, without any fees or registration.When use, please refer to Creative Commons license (BY type, http://creativecommons.org/licenses/by/4.0/ ). Publisher copyright policies & self-archiving is also described at Sherpa organisation web (RoMEO service) based at the University of Nottingham (http://www.sherpa.ac.uk/romeo/pub/2374/). All volumes of the Bulletin (from 1989) are available at Hrčak journal pages (http://hrcak.srce.hr/rgn-zbornik?lang=en). |
| ملاحظة: | application/pdf English |
| أرقام أخرى: | HRCAK oai:hrcak.srce.hr:273861 1306080715 |
| المصدر المساهم: | HRCAK PORTAL ZNANSTVENIH CASOPISA REPUB From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1306080715 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |