Abstract
Bu calismanin amaci, bor minerallerinin su bazli sondaj camurunun reolojik ve filtrasyon ozellikleri uzerindeki etkisini incelemektir. Bu amacla, su bazli sondaj camuru hazirlanarak icerisine 45 μm partikul boyutuna sahip boraks (Na2B4O7.10H2O), 75 μm partikul boyutuna sahip uleksit (NaCaB5O9.8H2O) ve 100 μm partikul boyutuna sahip kolemanit (Ca2B6O11.5H2O) farkli oranlarda (1-5% w/v) eklenmistir. Boraks, uleksit ve kolemanitin karekterizasyonu X-isinlari floresans spektrometresi (XRF) ile yapilmistir. Bor turevleri iceren su bazli sondaj camurunun gorunur viskozite, plastik viskozite, kopma noktasi ve jel mukavemeti gibi reolojik ozellikleri FANN viskozimetresi ile belirlenmistir. Filtrasyon ozellikleri, API Filter Presi kullanilarak incelenmistir. Tum olcumler, Amerikan Petrol Enstitusu (API) standartlarina gore gerceklestirilmistir. Boraks, uleksit ve kolemanit minerallerinin ayri ayri eklenmesi (%1-5 w/v) ile hazirlanan sondaj camurlarinin reolojik ve filtrasyon ozellikleri kendi iclerinde, daha sonra birbirleri ile ve son olarak ta katkisiz su bazli sondaj camuru ile karsilastirilmistir. Bor minerallerinin sondaj camurunun reolojik ozelliklerine olumlu yonde katki sagladigi tespit edilmistir. Boraks ve kolemanitin, uleksite oranla daha iyi bir etkiye sahip oldugu gorulmustur. Katkisiz su bazli sondaj camuruna kiyasla, camura bor mineralleri eklenmesinin camurun filtrasyon kaybi ve kek kalinligini attirdigi gorulse de sonuclarin referans deger araliginda oldugu tespit edilmistir.
Highlights
Petroleum exploration activities are expanding as the energy demand increase
All physical measurements were carried out according to the American Petroleum Institute (API) standards
The results showed that SiO2 and Al2O3 were the main components in the structures and Na-bentonite was suitable for the API Specification 13A standard [13],[14]
Summary
Petroleum exploration activities are expanding as the energy demand increase. There are many reports about the drilling operations both in economically and technically. Drilling fluids account for approximately 10% of the drilling costs. Technological developments lead to highly efficient and cost effective drilling fluid explorations. In a drilling operation, drilling mud is one of the main components to remove rock fragments from the wellbore to implement necessary hydrostatic pressure to cool and lubricate whole systems and to ensure the stability of the hole [1]. Water-based drilling fluid includes in water, bentonite, viscosity increaser, fluid loss reducer etc. Many reports have shown that the related properties of drilling fluids are improved by some additives including polymers and nano-materials [4]-[6]
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