In-Situ Combustion

Applicability of In-Situ Combustion and Range of Applicability Evaluation

Declaration

I …………………substantiate that this research work acquiesced for evaluation is my own and is a construction of my words. Any part of this paper which tends to integrate the works of other authors in any comportment has been properly accredited.

Signed……………………………………………………………..

Date………………………………………………………………..

Acknowledgements

The researcher tends to identify this as the opportunity to value the efforts of the Dr. Jim Somerville for cultivating the ideas and formulating the first move in the context of this project. His conduct during the entire course has been commendable; moreover the hard work put in by Dr. Mehran Sohrabi is also truly appreciated. The researcher would take this opportunity to appreciate the hard work and the patience shown by the staff of the Herriot Watt University for providing the world class teaching and research facility as this project would have ceased to exist without their due support.

Abstract

This paper tends to inculcate the existing works on In-Situ Combustion and Steam Injection. Moreover, the hurdles that have been crossed so that the processes and the framework of the industry along with the principles in regard to in-situ combustion as a thermal recovery method can be interpreted. Plus, the paper also deals with the assortment of ISC team and steam injection by throwing light on different factors stretching from the economics, to the model, and finally inculcating the engineering date prior the decision is taken in respect to the method. This research work also tends to deal with the subject of underground coal gasification along with its taxonomy. However, the results obtained from the stimulation of ISC and steam injection were evaluated on the grounds of recuperation efficiency, security, stoutness of the methods and economics. Thus the results in this regard tends to be of the view that recuperation from ISC was

much more effectual as measured to EOR methods.

Table of Contents

Declarationi

Acknowledgementsii

Abstractiii

CHAPTER 1.01

Aims1

Background of the Project1

CHAPTER 2.03

Historical Perspective3

Epigrammatic Account of Underground Coal gasification (UCG)4

Remunerations of In-Situ Combustion4

Drawbacks of In-Situ Combustion5

CHAPTER 3.06

Methodology6

Approach to field Application7

Evaluation of In-Situ Combustion and Steam Injection7

CHAPTER 4.08

Literature Review8

Frame Work of Underground Coal Gasification (UCG)9

Underground Coal Gasification Process10

Process Analysis10

Heat Transfer11

Mass Transfer11

Chemical Reaction12

Reaction Kinetics14

Process Constraints15

Facilities and Equipment15

Well Design and Completion16

Air Compressors16

Operational Demur18

Corrosion18

Emulsion and Asphaltene Production19

Sand Production19

Technical20

Surface facilities20

Water production20

Fluid processing20

Security Concerns21

Environmental Factors21

CHAPTER 5.022

Channelizing22

Screening and Selection Criteria of ISC22

Mounting of Grid22

Field Modelling and Simulation23

Emulsification23

Other Solutions23

CHAPTER 6.026

Evaluation of ISC and Steam Injection26

CHAPTER 7.028

Outcomes28

Economics of the Project29

Conclusion30

References31

Applicability of In-Situ Combustion and Range of Applicability Evaluation

CHAPTER 1.0

Aims

In-Situ Combustion tends to exist on the lines of reservoir engineering where the amount of work done in regard to the research tends to be overwhelming. This study however, tends to focus on the objectives stated as under:

In depth analysis of the existing research works in regard to In-Situ Combustion.

Constricting a methodology which can be applied to the in-situ combustion as reservoir recovery method.

Evaluating the different standpoints in the context of the in-situ combustion against the recovery methods such as steam injection.

Outcomes of the different methods with respect to the field development project NPV, evaluated against the present ...