Project Abstract

Abstract
The Imeri Bitumen Deposit, located in Region X of Country Y, is of significant interest due to its potential as a source of bitumen, an important material used in various industries such as road construction and waterproofing. This study aims to provide a reserve estimate for the Imeri Bitumen Deposit using a combination of geological data, geostatistical analysis, and reserve estimation techniques. The methodology involved the collection of core samples from multiple boreholes drilled across the deposit area, followed by laboratory analysis to determine the bitumen content and other relevant parameters. Geological mapping of the deposit area was conducted to understand the spatial distribution of bitumen-bearing formations and their geological characteristics. Geostatistical analysis, including variogram modeling and kriging, was performed to assess the spatial continuity of bitumen within the deposit and to interpolate bitumen grades between borehole locations. Reserve estimation was carried out using established methods such as the volumetric method and the probabilistic method to account for uncertainty in the data. The results of the study indicate that the Imeri Bitumen Deposit has a total estimated reserve of X million barrels of bitumen with a confidence level of Y%. The spatial distribution of bitumen within the deposit was found to be relatively continuous, allowing for reliable interpolation between borehole locations. Sensitivity analysis was performed to evaluate the impact of key parameters on the reserve estimate, such as the cut-off grade and the estimation method used. The reserve estimate provided in this study serves as a valuable resource for decision-makers in the mining industry, government agencies, and potential investors interested in the development of the Imeri Bitumen Deposit. The findings contribute to the understanding of the deposit's economic potential and provide a basis for future exploration and development activities. Recommendations for further research include additional drilling to improve the spatial coverage of data, as well as ongoing monitoring and evaluation of the deposit to track changes in reserves over time. Overall, this study enhances the knowledge of the Imeri Bitumen Deposit and demonstrates the importance of accurate reserve estimation in ensuring sustainable resource management and informed decision-making in the extractive industries.

Project Overview

  INTRODUCTION

The Petroleum industry has become the mainstay of the overall economy of Nigeria, accounting for about 90 per cent of the country’s foreign exchange earrings, about 20 per cent of the Gross Domestic Product, and about 85 per cent of the Federal Government collectable revenue. The demand for this back gold is fast increasing worldwide. Figure 1.1, from Purvin & Gertz' most recent Global Petroleum Market Outlook study, shows how petroleum product demand has grown since 1995 and how it is expected to continue to grow through 2015. The study shows a 1.7 % per annum growth in worldwide demand and that this growth rate will continue over the next 15 years. The Purvin & Gertz study also states that the growth in crude supplies from 60 million barrels per day in 1990 to 75 million barrels in 2005 will continue up to 95 million barrels per day in 2020. The current growth in transportation fuel demand is outpacing the supply of traditional crude oil sources.

This gap can be filled through increased production of non-traditional hydrocarbon deposits, such as Canadian oil sands, Venezuelan heavy oils. It is apparent that increasing amounts of petroleum will come from nonconventional sources. Hence the need for the development of our heavy crude deposits. Therefore, in order to ensure continuity and orderly development of the industry, the Federal Government put in place a Petroleum Policy. Prominent among the objectives of the Policy is the development of the large deposit of tar sands in the country.

The extensive geological studies carried out largely by the staff of the University of Ife (now Obafemi Awolowo University) IIe Ife, confirmed the existence of the natural bitumen in Western Nigeria in commercial quantities. Similarly, the limited engineering studies of the naturally occurring bitumen in the Okitipupa area of Ondo State. Also, reference to various reports, newspaper publications and other information media in Nigeria within the last two decades is a pointer to the fact that petroleum crude, generally a major source of bitumen, has been aptly described as Nigeria's "black gold". But can this "black gold" concept of petroleum crude oil be extended to bitumen? Perhaps the second phase of Nigeria's economic breakthrough is round the corner!

It is in the light of the foregoing that the title of this research work has been chosen to read: "the reserve estimate of Bitumen deposit in Imeri, Southwestern Nigeria?" to find out if the natural bitumen can be mined in commercial quantity as a nonconventional petroleum to support Nigeria' s economic sector .

At the end of this project, we hope to be able to find solution to some pertinent questions like:

1)   What is the meaning of bitumen?

2)    What is its reserve estimate of bitumen in the study area?

3)    What is its economic viability?

1.2       AIM AND OBJECTIVE

This project work aimed at determining:

The reserve estimate of bitumen deposit in Imeri, Ogun State, South-western Nigeria.

Its objective is to use this reserve in evaluating its commercial viability.

1.3       SCOPE AND LIMITATION

This project work covers:

1. The determination of the depth of burial, thickness and aerial extend of deposition of bitumen in the study area.
2. The estimation of bitumen reserve using the values gotten from above in the study area.

As a result of the short duration coupled with financial constraint this project will be limited to the study area.

1.4       LOCATION AND ACCESIBILITY

The study area lies within latitude 06046´-06049´N and longitudes 003058´-003060´E, on an area extent of approximately eighteen square kilometers (~18sq. km), a sedimentary terrain in the Dahomey Basin of Southwestern, Nigeria. The village has good road network that link it to the express. (Fig. 1.2)

1.5       RELIEF AND DRAINAGE

Imeri is almost a flat plain ground with extremely low relief with elevation between 100ft and 250ft above sea level, the drainage pattern is sub-dendrite-like with an average annual temperature of 310C and mean annual rainfall of 1200mm to 2300mm.

1.6       CLIMATE AND VEGETATION

The climate of Imeri is of moderately high humidity, the vegetation include shrubs, grasses and forest with agriculture being the predominant occupation of the dwellers.

1.7       DURATION

This project work is expected to be done within six (6) months in accordance with the school calendar and should be ready latest September, 2011.

1.8       JUSTIFICATION

This project work when completed will boost the nation’s economy by preserving our conventional oil reserves while attention is focused on bitumen development, if all the recommendations proposed are implemented.