عنوان

Leakage rate and hydraulic head change evaluation through conduits in deep storage aquifers

Number

TL48470

.Language of Text, Soundtrack etc

انگلیسی

Title Proper

Leakage rate and hydraulic head change evaluation through conduits in deep storage aquifers

General Material Designation

[Thesis]

First Statement of Responsibility

Jinia Islam

Subsequent Statement of Responsibility

Zhan, Hongbin

Name of Publisher, Distributor, etc.

Texas A&M University

Date of Publication, Distribution, etc.

2015

Specific Material Designation and Extent of Item

96

Text of Note

Committee members: Everett, Mark; Mohanty, Binayak; Sparks, David

Text of Note

Place of publication: United States, Ann Arbor; ISBN=978-1-339-17492-1

Dissertation or thesis details and type of degree

Ph.D.

Discipline of degree

Geology and Geophysics

Body granting the degree

Texas A&M University

Text preceding or following the note

2015

Text of Note

Understanding flow leakage through different conduits (abandoned wells, fracture, faults, etc) has become an intensively investigated subject in the subsurface hydrology and petroleum engineering in recent years. This study represents an efficient mathematical model for estimating leakage rate by hydraulic head change evaluation through different conduits or leakage pathways coupled with an injection well. The leakage rate is estimated using Darcy's law by evaluating hydraulic head change between the upper and the lower aquifers through leakage conduit (abandoned well and fracture). The analysis is conducted by solving the governing equations of fluid flow in the aquifer coupled with the flow through different conduits. The single-phase flow is considered which is capable of explaining both fluid and CO₂ plume flow in an aquifer system by neglecting the variable density effect. The result is obtained in the Laplace domain and subsequently inverted to yield the real-time domain solution. The model developed here will significantly advance our understanding of the flow leakage process through different pathways; it helps accurately quantify the fluid leakage rate, and the leakage volume through them. For leakage pathways, the first analysis has been done considering an abandoned well coupled with an injection well and the later one involves a fracture coupled with an injection well. Because of the limited analytical solution or complex numerical solution, this new model provides an efficient way to estimate the leakage rate through both an abandoned well and also fracture coupled with an injection well. The sensitivity analysis has been conducted to indicate the most sensitive parameters to the leakage rate through leakage pathways.

Geology; Hydrologic sciences

Subject Term

Earth sciences;Deep storage aquifer;Hydraulic head;Leakage rate;Liquid waste injection

Visaria, Abhijit

Zhan, Hongbin

Subdivision

Geology and Geophysics

Texas A&M University

Call Number

1731911811; 3731140

Electronic name

p

[Thesis]

276903

a

Y