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Original Author(Copyright Owner): AMODU ADEBAYO

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Download the complete Petroleum Engineering project topic and material (chapter 1-5) titled MATERIAL BALANCE APPLICATION FOR BROWNFIELD DEVELOPMENT] here on PROJECTS.ng. See below for the abstract, table of contents, list of figures, list of tables, list of appendices, list of abbreviations and chapter one. Click the DOWNLOAD NOW button to get the complete project work instantly.

 

PROJECT TOPIC AND MATERIAL ON MATERIAL BALANCE APPLICATION FOR BROWNFIELD DEVELOPMENT

The Project File Details

  • Name: MATERIAL BALANCE APPLICATION FOR BROWNFIELD DEVELOPMENT
  • Type: PDF and MS Word (DOC)
  • Size: [1370KB]
  • Length: [63] Pages

 

ABSTRACT

The need to re-develop one of the Brown fields located in the Niger Delta area of Nigeria was necessitated by the fact that there are still three undeveloped reservoirs in the field. A total of six stacked reservoirs, A100 to A600 (all oil bearing with associated gas) were penetrated between 8552 ftss and 10652 ftss by APV-1 well. Reservoir blocks A200 and A600 are the largest in the field accounting for 77% of the total field STOIIP. The well was completed with a Two String Multiple (TSM) on the two levels, with the short string producing from the A200 reservoir and the long string producing from the deeper A600 reservoir, A300 behind the sleeve. The purpose of this research is to identify the best developmental plan to produce the reservoirs, either with a TSM completion or with a Smart well completion based on the economics. There are many single well fields in the Niger Delta area of Nigeria that have not been optimally produced, hence this study seeks to maximize the life of this field.  The reservoirs were simulated and production forecast carried out amounted to 14.55 MMstb for a period of 16 years. After economic analysis was performed, the Net Present Value for the TSM and the Smart well completion were US $MM 241.9 and 248.88 respectively and an Internal Rate of Return of 155% and 202% respectively, hence the Smart well development plan is recommended.
Keywords: reservoir blocks, Two String Multiple, reservoir development plan, economic
analysis.

TABLE OF CONTENTS

ABSTRACT……………………………………………………………………………………………………………………4
ACKNOWLEDGEMENT ………………………………………………………………………………………………..5
DEDICATION ……………………………………………………………………………………………………………….6
TABLE OF CONTENT…………………………………………………………………………………………………….7
LIST OF FIGURES…………………………………………………………………………………………………………8
LIST OF TABLES…………………………………………………………………………………………………………..9

CHAPTER ONE…………………………………………………………………………………………………………….10
1.0 BACKGROUND……………………………………………………………………………………………………10
1.1 STATEMENT OF PROBLEM…………………………………………………………………………………10
1.2 AIM ……………………………………………………………………………………………………………………10
1.3 OBJECTIVE OF STUDY……………………………………………………………………………………….10
1.4 SCOPE OF THE STUDY……………………………………………………………………………………….11
1.5 MOTIVATION FOR THE STUDY…………………………………………………………………………..11
CHAPTER TWO……………………………………………………………………………………………………………11
2.0 LITERATURE REVIEW………………………………………………………………………………………..11
2.1 RESERVOIR MANAGEMENT………………………………………………………………………………11
2.1.1 Fundamentals of Reservoir Management…………………………………………………………….12
2.1.2 The Reservoir Management Plan ………………………………………………………………………12
2.2 MATERIAL BALANCE EQUATION………………………………………………………………………12
2.3 MBAL…………………………………………………………………………………………………………………14
2.4 WELL WORK OVER……………………………………………………………………………………………..14
2.5 ECONOMIC ANALYSIS……………………………………………………………………………………….14
2.5.1 Net Present Value …………………………………………………………………………………………….15
2.5.2 Internal Rate of return ………………………………………………………………………………………15
2.6 FIELD OVERVIEW………………………………………………………………………………………………15
2.6.1 Volumes Initially-In-Place (Geological Description)…………………………………………….16
2.6.2 Fluid Distribution ……………………………………………………………………………………………16
2.6.3 Reservoir drive Mechanisms……………………………………………………………………………..19

CHAPTER THREE………………………………………………………………………………………………………..19
3.0 METHODOLOGY…………………………………………………………………………………………………19
3.1 DATA GATHERING …………………………………………………………………………………………….19
3.2 PVT ANALYSIS FOR FOUR OF THE RESERVOIRS. …………………………………………….20
3.2.1 PVT Analysis Methodology (Using Correlations) ……………………………………………….20
3.3 THE RESERVOIRS MBAL MODEL ………………………………………………………………………20
3.3.1 Reservoir Modeling (At Tank Level) …………………………………………………………………21
3.3.2 Reservoir Modelling Assumptions …………………………………………………………………….22
3.3.3 Input Data ………………………………………………………………………………………………………22
3.3.5 Aquifer Fitting ………………………………………………………………………………………………..22
3.3.6 Fractional Flow Matching and Pseudo Relative Permeability Generation ……………….23
3.3.7 Reservoir Predictions/Forecasting ……………………………………………………………………..24
3.4 WORK OVER RESERVOIRS…………………………………………………………………………………24
3.5 ANALYSIS OF WELL PERFORMANCE AND ECONOMIC ANALYSIS………………….24

CHAPTER FOUR ………………………………………………………………………………………………………….24
4.0 PRESENTATION OF RESULTS AND DISCUSSION……………………………………………….24
4.1 HISTORY MATCHING …………………………………………………………………………………………24
4.1.1 RESERVOIR DRIVE MECHANISMS ……………………………………………………………..24
4.1.2 FRACTIONAL FLOW MATCHING …………………………………………………………………25
4.2 RESERVOIR PREDICTIONS ………………………………………………………………………………..25
4.2.1 Current Production ………………………………………………………………………………………….26
4.3 TWO STRING MULTIPLE (TSM) WELL COMPLETION ………………………………………26
4.4 COMPLETING WITH SMART WELL COMPLETION…………………………………………….26
4.5 ECONOMIC ANALYSIS……………………………………………………………………………………….26

CHAPTER FIVE …………………………………………………………………………………………………………..27
5.0 CONCLUSION AND RECOMMENDATIONS ……………………………………………………….27
5.1 CONCLUSION……………………………………………………………………………………………………..27
5.2 RECOMMENDATIONS…………………………………………………………………………………………28
NOMENCLATURE……………………………………………………………………………………………………….29
REFERENCES……………………………………………………………………………………………………………..31
APPENDIX…………………………………………………………………………………………………………………..32
A1: APV Field Data…………………………………………………………………………………………………….32
A2: RELATIVE PERMEABILITY……………………………………………………………………………….46
A3: RESERVOIR PVT TABLE…………………………………………………………………………………….47
A4: RESERVOIR FORECAST…………………………………………………………………………………….48
A4: TWO STRING MULTIPLE WELL COMPLETION ECONOMIC ANALYSIS……………49
A5: SMART WELL COMPLETION ECONOMIC ANALYSIS……………………………………….49

CHAPTER ONE

1.0 BACKGROUND
Petroleum reserves are declining, and fewer noteworthy discoveries have been made in recent years (Abdus, 1990). The need to increase recovery from the vast amount of remaining oil and to compete globally require healthier reservoir management practices (Abdus et al, 1994).
However, technological developments in all areas of petroleum exploration and exploitation, along with fast increasing computing power, are providing the tools to better develop and manage reservoirs to maximize economic recovery of hydrocarbons (Abdus, 1990). A reservoir’s life begins with exploration, which leads to discovery; reservoir delineation; field development; production by primary, secondary and tertiary means; and abandonment (Figure.1.1).
Sound reservoir management is the key to successful operation of the reservoir throughout its entire life. It is a continuous course, unlike how the baton is passed in traditional E&P organizations (Abdus et al, 1994). Reservoir Management is all about excellence in the Operate phase of an E&P project life cycle. This is the only phase (Operate) that earns income, to provide the return on investment and it is the longest of the four (4) E & P business phases (Exploration, Appraisal, Development and Operate) spanning decades. (Shell WRM Operational Excellence, 2010). Complete reservoir management requires the use of both human and technological resources for
maximizing profits (Abdus et al, 1994). It requires good coordination of geologists, geophysicists, production, and petroleum engineers to advance petroleum exploration, development, and production. Also, technological advances and computer tools can facilitate better reservoir management as well as enhance economic recovery of hydrocarbons. Even a small percent increase in recovery efficiency could amount to significant additional recovery and profit. These incentives and challenges provide the motivation to sound reservoir management. Reservoir simulation is the way by which one uses a numerical model of the geological and petrophysical characteristics of a hydrocarbon reservoir to analyze and predict fluid behavior in the reservoir over time. In its simple form, a reservoir simulation model is made up of three parts: (i) a geological model in the form of a volumetric grid with face properties that describes the given porous rock formation; (ii) a flow model that defines how fluids flow in a porous
medium, typically given as a set of partial differential equations expressing conservation of mass or volumes together with suitable closure relations; and (iii) a well model that describes the flow in and out of the reservoir, including a model for flow within the well bore and any coupling to flow control devices or surface facilities (Lie, 1994).
Figure 1.: Reservoir life process (Abdus et al, 1994). Reservoir Management approaches have been used over the years to make optimal decisions in terms of improving production and maximizing the life of the reservoir. This concept is applied in this study for optimization of the Niger Delta field using MBAL simulation.

1.1 STATEMENT OF PROBLEM
Petroleum reserves are dwindling, and fewer significant discoveries have been made in recent years. Hence, the need to effectively maximize recovery from the huge amount of remaining oil.

1.2 AIM
The aim of this study is to maximize the life of the field, with a key focus on Reservoir Management/developments strategies.

1.3 OBJECTIVE OF STUDY
The study objectives include:
 Allow the field to flow without any work over
 Work over 3 Reservoirs by completing with Two String Multiple(TSM)
 Work over 3 Reservoirs (Intervals) by completing with Smart well
 Economic Analysis of the field development plans.

1.4 SCOPE OF THE STUDY
This project involves maximizing the value of a Niger Delta field.
 The reservoirs were modelled with MBAL software and all assumptions of tank model apply
 Parameters inputted are for the field of study; Geological data, Petrophysical data, Reservoir data, etc.
 Economic Analysis was done using oil price of $48.16 and a gas price of $2.07.

1.5 MOTIVATION FOR THE STUDY
I strongly believe that this study will enable me to integrate the basic Petroleum Engineering principles acquired in school, with industry best practices and thus equip me with a holistic knowledge (Sub-surface) of the E & P business.

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