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The technique used worldwide while drilling is known as overbalanced drilling. Which is defined as the drilling process where the hydrostatic pressure used exceeds the formation pressure. This is done with the main purpose of “killing” the well. However, there are numerous problems that accompany overbalanced drilling. Such problems are differential pipe sticking, loss of circulation, formation damage and other problems. A relatively new technique was introduced, known as underbalanced drilling, where the well is being drilled with a hydrostatic pressure less than that of the formation. Correct and proper execution of such technique eliminates problems associated with overbalanced drilling. More precisely, underbalanced drilling solves the issues of formation damage, differential pressure sticking and loss of circulation. On the other hand, underbalanced drilling has its own problems as well. Additionally, underbalanced drilling increases the rate of penetration and provides other uses discussed in this project. The objective of this paper was to compare between overbalanced and underbalanced drilling and ascertain which method is most suitable in all aspects. Finally, it can be concluded that UBD provides lower drilling costs, increased rate of penetration (ROP) and less hole problems when it was compared to overbalanced drilling of the same formations.
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SIMILAR INDUSTRIAL CHEMISTRY FINAL YEAR PROJECT RESEARCH TOPICS
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1. ASSESSING THE EFFECT OF DRY PLANTAIN AND BANANA PEELS ON MUD RHEOLOGICAL PROPERTIES
» TABLE OF CONTENTS Contact Page Title page i Declaration ii Certification iii Dedication iv Acknowledgement v Table of Contents vi List of Tables viii ...Continue Reading »Item Type & Format: Project Material - Ms Word | 33 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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2. INVESTIGATION OF EFFECTS OF TWO FLAME RETARDANTS ON THE FIRE CHARACTERISITICS OF FLEXIBLE POLYETHER FOAM
» ABSTRACT This work studied the effects of two flame retardants on the fire characteristics of flexible polyether foam samples. Various concentrations ...Continue Reading »Item Type & Format: Project Material - Ms Word | 152 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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3. PRODUCTION OF COPPER-CLAD PRINTED CIRCUIT BARE BOARD SUBSTRATE FROM AGRICULTURAL AND PLASTIC WASTE MATERIALS.
» ABSTRACT The use of printed circuit board is unavoidable within the electrical and electronic industries. Various types and models exist, all made fro...Continue Reading »Item Type & Format: Project Material - Ms Word | 104 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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4. Production And Characterization Of Coconut Oil
» CHAPTER ONE INTRODUCTION 1.1 BACKGROUND OF STUDY Coconut (Cocos nucifera L.) is a tree, referred to as “The Tree of Life”. Early Spanish e...Continue Reading »Item Type & Format: Project Material - Ms Word | 102 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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5. ENHANCING THE PROPERTIES OF COAL BRIQUETTE USING SPEAR GRASS (IMPERATA CYLINDRICA) AND ELEPHANT GRASS (PENNISETUM PURPUREUM)
» ABSTRACT The urgent need to protect our forest, to mitigate health hazards faced by the people from the use of firewood for cooking and to find an eff...Continue Reading »Item Type & Format: Project Material - Ms Word | 100 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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6. THE INHIBITORY EFFECT OF ETHANOLIC EXTRACT OF MORINGA OLEIFERA LEAF ON THE CORROSION OF MILD STEEL IN 5 M AND 1 M HYDROCHLORIC ACID (HCl)
» CHAPTER ONE INTRODUCTION 1.1 Background of study Corrosion of materials has continued to receive interest in the technological world as its effects on...Continue Reading »Item Type & Format: Project Material - Ms Word | 60 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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7. FLAMMABILITY STUDIES OF SOME FIRE TOLERANT TREES OF SOUTH-EAST, NIGERIA
» ABSTRACT Bush fire is a common hazard in South Eastern Nigeria as in other parts of the country during the harmattan. Every year, thousands of hectare...Continue Reading »Item Type & Format: Project Material - Ms Word | 152 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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8. THE PRODUCTION OF BIODIESEL (FAME) FROM PALM KERNEL OIL (PKO) USING CONCENTRATED SULPHURIC ACID AS CATALYST
» CHAPTER ONE INTRODUCTION 1.0 GENERAL INTRODUCTION Energy is a fundamental pillar of modern society as well as being an essential building block for so...Continue Reading »Item Type & Format: Project Material - Ms Word | 45 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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9. THE BLEACHING OF PALM OIL USING ACTIVATED CHARCOAL
» ABSTRACT This project work is on the bleaching of palm oil using activated charcoal. The charcoal used for this work was made from pieces of animal bo...Continue Reading »Item Type & Format: Project Material - Ms Word | 80 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT
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10. ANALYSES OF SOME SELECTED HEAVY METALS AND CONTAMINANTS IN UNDERGROUND WATER AND THREE SATELLITE RIVER STATIONS IN OWERRI LOCAL GOVERNMENT AREA OF IMO...
» ABSTRACT Water samples from ground water and some rivers from Owerri Local Government Area of Imo state Nigeria, were investigated for contaminants an...Continue Reading »Item Type & Format: Project Material - Ms Word | 52 pages | Instant Download | Chapter 1-5 | INDUSTRIAL CHEMISTRY DEPARTMENT