IDENTIFICATION OF WELL PROBLEMS USING WELL TESTING
(A CASE STUDY OF UMU-N2 WELL OF MIDWESTERN OIL AND GAS COMPANY, KWALE, NIGERIA)
USER'S INSTRUCTIONS: The project work you are about to view is on "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)". Please, sit back and study the below research material carefully. This project topic (identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)) have complete 5(five) Chapters. The complete Project Material/writeup include: Abstract + Introduction + etc + Literature Review + methodology + etc + Conclusion + Recommendation + References/Bibliography.Our aim of providing this "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" project research material is to reduce the stress of moving from one school library to another all in the name of searching for "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" research materials. We are not encouraging any form of plagiarism. This service is legal because, all institutions permit their students to read previous projects, books, articles or papers while developing their own works.
TITLE PAGE
BY
---
--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---
DECEMBER,2018
APPROVAL PAGE
This is to certify that the research work, "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.
By
--- . ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
PROJECT DESCRIPTION: This work "identification of well problems using well testing
(a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of "identification of well problems using well testing
(a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" visible for everyone, then the complete material on "identification of well problems using well testing
(a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" is to be ordered for. Happy viewing!!!
Well tests exist already for a long time. Since the first oil reservoir was discovered, oil companies have always been keen on estimating reservoir properties such as size. Present day well testing has gone beyond this and its usefulness cannot be overemphasized. This project work is concerned with the use of well testing in identifying well problems. The case under study is the UMU-N2 well of Umusadege field, Kwale. From analysis of the well test data, it was seen that the well had impairment which was due to reduced permeability and thus, required stimulation for improved recovery of the hydrocarbons present. Also, there was high sand and water production which also reduced the productivity of the well.
Cover Page
Title page
Declaration
Certification
Dedication
Acknowledgements
Abstract
Table of Content
List of Figures
List of Tables
Chapter One: Introduction
1.1 Background to the Study
1.2 Statement of the Problem
1.3 Objectives of the Study
1.4 Significance of the study
1.5 Scope of the Study
1.6 Limitations
1.7 Operational Definition of Terms
Chapter Two: Literature Review
2.1 Conceptual Review
2.2 Theoretical Framework
2.3 Empirical Review
2.4 Gap in Knowledge
CHAPTER THREE
3.0 methodology
3.1 study area
3.2 Production data table
3.3 Production versus Time reading for UMU-N2 WELL
3.5 BHP Graph of Pws versus∆t
3.6 The Graph of log ∆p versus ∆t
CHAPTER FOUR
4.0 Analysis of Data
4.1 Production data analysis
4.2 Analysis of the BHP data
CHAPTER FIVE
5.0 Conclusion and Recommendation
5.1 Conclusion
5.2 Recommendations
References
NOMENCLATURE
Ct=Total compressibility psi-1 (kpa-1)
FE=Flow efficiency (dimensionless)
Net formation thickness, ft, (m)
J=Productivity index, Stb/psi
K=Reservoir rock permeability
M=absolute value of slope of middle time line in psi/cycle
β=Formation volume factor
P*=MTR pressure trend extrapolated to infinite shut-in time, psi
βo=Oil formation volume factor
C= compressibility, psi
Kv=Vertical permeability
Kh=Horizontal permeability
Hp=height of perforation
Ht=Top of perforation
Pi=Original reservoir pressure, psi(kpa)
Pwf=flowing bottom hole pressure
Pws=Shut-in bottom hole pressure psi (kpa)
P1hr=Pressure at 1 hour shut-in (or flow) time on middle-time line (or its extrapolation) psi (kpa)
Q=flow rate, STB/D
r=distance from center of wellbore, ft9m0
re=External drainage radius, ft (m)
ri=Radius of investigation ft
rw=Wellbore radius ft(m)
S=skin factor, dimensionless
T=elapsed time, hours
µ=Viscosity, cp
µo=Oil viscosity, cp
Ø= Porosity of reservoir rock, dimensionless
CHAPTER ONE
1.0 INTRODUCTION
In the petroleum industry, awell test is the execution of a set of planned data acquisition activities to broaden the knowledge and understanding of hydrocarbons properties and characteristics of the undergroundreservoir where hydrocarbons are trapped. The overall objective is identifying the reservoir's capacity to produce hydrocarbons, such as oil, natural gas and condensate. Data gathered during the test period includes volumetric flow rateand pressure observed in the selected well. Well testing can be surface or subsurface testing and each type has its own objectives. A properly designed, executed and analyzed well test usually can provide information about formation permeability, extent of wellbore damage or stimulation, reservoir pressure, reservoir boundaries and heterogeneities etc. Outcomes of a well test, for instance flow rate data and gas oil ratio data, may support thewell allocationprocess for an ongoing production phase, while other data about the reservoir capabilities will support reservoir management. A well is said to have problem when its behavior deviates from the normal production pattern. Typical well problems for producing wells include low productivity, low reservoir pressure, formation damage and skin value, high viscosity oil, wellbore and tubing plugging, high gas- oil ratio etc. Hence, well testing is therefore one of the economic source of valuable information about reservoir properties such as porosity, permeability, fluid viscosity, reservoir limit, drainage volume and vertical permeability orientation etc.
1.2 TYPES OF WELL TESTING
Generally,Well testing can be divided into three types viz:
Pressure transient test
Periodic productive test
Deliverability test
PRESSURE TRANSIENT TEST: This is a means of assessingreservoirperformance by measuring flow rates and pressures under a range of flowing conditions and then applying the data to a mathematicalmodel. During the flow period, the pressure at the formation is monitored over time. Classification of pressure transient test includes pressure drawdown test, pressure build-up test, injectivity test, inference test, fall off test etc. These tests requires higher degree of sophistication and used to determine formation damage or stimulation related to reservoir parameters such as permeability, porosity, pressure, volume etc.
PERIODIC PRODUCTIVE WELL TEST: This is a routine test carried out to physically measure oil, gas and water produced by a particular well under normal producing conditions. It helps to determine the daily production of oil, water and gas. These information serve as an aid in well and reservoir operations and also in meeting legal and regulatory requirements.
DELIVERABILITY PRODUCTIVITY TESTS: This is an intensive oil and gas well test which involves the physical or empirical determination of fluid flow rate versus bottom hole pressure drawdown with a limited number of measurements in order to determine the capability of the well under various degree of pressure drawdown. This test is usually carried out on a newly completed well. Results may be used to set allowable production and in the selection of artificial lift system and production facilities. Classification of deliverability tests include Inflow performance relationship (IPR) test, flow after flow test, isochronal test, Potential test etc.
1.3 AIMS/OBJECTIVES:
To study the various types of well tests carried out in the oil industry and how they can be used in identifying well problems.
To analyze well test data gotten from UMU-N2 well in order to determines its reservoir characteristics by the application of well test knowledge.
To make conclusions on the state of the UMU-N2 well on the basis of data analysis and give possible recommendations.
1.4 SCOPE AND LIMITATIONS
The scope of this project is limited to the data of a particular well test that was carried out on UMU-N2 well which would be used for determining problems and evaluating well productivity.
1.5 METHODOLOGY
Literature review of textbooks, journals, articles etc., and surfing the internet for necessary information.
Obtaining well test data of well UMU-N2 well from the company and carrying out analysis with the aid of mathematical calculations and graphical plots to evaluate the well problems.
1.6 Conceptual Review
Oil well testing is a branch of reservoir engineering. It is one of the most powerful tools available for determining reservoir characteristics. Generally, a well test is a period of time during which the rate and/or pressure of a well is recorded to estimate well or reservoir properties to prove reservoir productivity or to obtain general reservoir management data. It involves producing a well at constant rate or series of rates, some of which may be zero(well closed in) while simultaneously taking a continuous recording of the changing pressure in the wellbore using some of the pressure measuring devices. Well test information is second only to production data in importance for the prudent management of oil or gas reservoir. As such, well testing is an integral part of the overall production and depletion strategy of a reservoir. The interpretation of pressure data recorded during a well test has been used for many years to evaluate the reservoir characteristics. Static reservoir pressure measured in shut-in wells is used to predict reserves in place through material balance calculations. Transient pressure analysis provides a description of the reservoir flowing behavior. Many methods have been proposed for interpretation of transient tests but the best known and most widely used is Horner’s. More recently, type curves which indicate the pressure response of flowing wells under a variety of well and reservoir configurations were introduced. Recently, the quality of well test interpretations has improved because of the availability of accurate pressure data (from electronic pressure gauges) and the development of new software for computer aided analysis.
CHAPTER FIVE
CONCLUSION AND RECOMMENDATION
5.1 CONCLUSION
From the analysis carried out on Umu-N2 well, it was discovered that there was formation damage which has made the permeability inadequate to allow the well to produce at rates high enough for the timely recovery of investment in drilling and completing the well. Also, the high sand and water production is detrimental to high productivity.
5.2 RECOMMENDATION
- The formation damage should be removed or repaired. This requires a damage removal technique which is usually matrix acidizing but may occasionally involve hydraulic fracturing
- As for the sand production, the wellbore should be cleaned out and the gravel pack re-installed such that it has high intergrity.
CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" is also available. Order full work to download. Chapter two of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" consists of the literature review. In this chapter all the related works on "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" were reviewed.
CHAPTER THREE: The complete chapter three of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" of an automated light system using photo-sensitive switch" is available. Order full work to download. Chapter three of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" is available. Order full work to download. Chapter four of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" is available. Order full work to download. Chapter five of "identification of well problems using well testing (a case study of umu-n2 well of midwestern oil and gas company, kwale, nigeria)" consist of conclusion, recommendation and references.
To "DOWNLOAD" the complete material on this particular topic above click "HERE"
Do you want our Bank Accounts? please click HERE
To view other related topics click HERE
To "SUMMIT" new topic(s), develop a new topic OR you did not see your topic on our site but want to confirm the availiability of your topic click HERE
Do you want us to research your new topic? if yes, click "HERE"
Do you have any question concerning our post/services? click HERE for answers to your questions
For more information contact us through any of the following means:
Mobile No 
:+2348146561114 or +2347015391124 [Mr. Innocent]
Email address 
:engr4project@gmail.com
Watsapp No 
:+2348146561114
COUNTRIES THAT FOUND OUR SERVICES USEFUL
Australia, Botswana, Canada, Europe, Ghana, Ireland, India, Kenya, Liberia, Malaysia, Namibia, New Zealand, Nigeria, Pakistan, Philippines, Singapore, Sierra Leone, South Africa, Uganda, United States, United Kindom, Zambia, Zimbabwe, etc
Support: +234 8146561114 or +2347015391124
Watsapp No :+2348146561114
Email Address :engr4project@gmail.com
FOLLOW / VISIT US VIA:
