Ham ve Genleştirilmiş Perlitin Su Bazlı Sondaj Çamuruna Etkisinin Karşılaştırılması

Abstract

Sondaj uygulamalarında başarılı bir operasyon gerçekleştirmek için kullanılan sondaj akışkanının performansı oldukça önemlidir. Son zamanlarda özellikle pahalı teknolojilerin kullanıldığı yatay ve derin deniz sondajlarındaki gelişmelerin yanı sıra sondaj çamuru teknolojisindeki gelişmeler de ekonomik anlam kazanmıştır. Bu çalışmada, ham perlit ve genleştirilmiş perlitin su bazlı sondaj çamuruna etkisinin karşılaştırılması amaçlanmıştır. Bu amaçla, su bazlı sondaj çamurları hazırlanmış ve hazırlanan çamur numunelerine farklı oranlarda (0.1 - 5 % k.h-1) ham perlit ve genleştirilmiş perlit ikame edilmiştir. Hazırlanan sondaj çamurlarının plastik viskozitesi, görünür viskozitesi, kopma noktası, jel mukavemeti değerleri (10 saniye ve 10 dakika) gibi reolojik özellikleri FANN viskozimetresi, filtrasyon kaybı özellikleri de API Filter Press aracılığıyla tespit edilmiştir. Tüm ölçümler Amerikan Petrol Enstitüsü (API) standartlarına uygun bir şekilde gerçekleştirilmiştir. Ham ve genleştirilmiş perlitin ayrı ayrı eklenmesi ile hazırlanan sondaj çamurlarının reolojik ve filtrasyon özellikleri ilk olarak katkısız sondaj çamuruyla daha sonra da kendi içlerinde karşılaştırılmıştır. Ham perlit ve genleştirilmiş perlitin su bazlı sondaj çamurunun reolojik özellikleri ile filtrasyon kaybı değerlerine olumlu yönde katkı sağladığı tespit edilmiştir. Ayrıca genleştirilmiş perlitin, ham perlite oranla daha iyi bir etkiye sahip olduğu görülmüştür.

Keywords

• Su bazlı sondaj çamuru
• ham perlit
• genleştirilmiş perlit
• reolojik ve filtrasyon özellikleri

Comparison of The Effect of Raw and Expanded Perlite on Water Based Drilling Mud

Abstract

The performance of the drilling fluid used is very important for a successful operation in drilling applications. Recently, developments in drilling mud technology have gained economic significance as well as developments in horizontal and deep-sea drilling, where expensive technologies are used. In this study, it is aimed to compare the effects of raw perlite and expanded perlite on water-based drilling mud. For this purpose, water-based drilling muds were prepared and raw perlite and expanded perlite was added to the prepared mud samples at different rates (0.1-5 % w.v-1). Rheological properties such as plastic viscosity, apparent viscosity, breaking point, gel strength values (10 seconds and 10 minutes) of the prepared drilling mud were determined by FANN viscometer. Filtration properties were studied using API Filter Press. All measurements were performed according to American Petroleum Institute (API) standards. The rheological and filtration properties of drilling mud prepared by adding raw and expanded perlite separately were compared with additive-free drilling mud and then among themselves. It has been determined that raw perlite and expanded perlite contribute positively to the rheological properties and filtration loss values of water-based drilling mud. In addition, it has been observed that expanded perlite has a better effect than raw perlite.

Keywords

• Water based drilling mud
• raw perlite
• expanded perlite
• rheological and filtration properties

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