3, 4 , Prof. Suzanne Hurter - University of Queensland...Microsoft PowerPoint - UQ-CCSG Research...

Preview:

Citation preview

CR

ICO

S Pr

ovid

er N

umbe

r 000

25B

Ackn

owle

dgem

ents

This

rese

arch

has

bee

n co

nduc

ted

with

the

supp

ort o

f Ene

rgiS

imul

atio

n an

d Th

e U

nive

rsity

of Q

ueen

slan

d C

entre

for C

oal S

eam

Gas

(UQ

-CC

SG) a

nd it

s in

dust

ry m

embe

rs –

APLN

G, A

rrow

Ene

rgy,

She

ll an

d Sa

ntos

.

Dr M

ohse

n S.

Mas

oudi

an1

[m.m

asou

dian

@uq

.edu

.au]

, Dr C

hris

toph

er L

eona

rdi1 ,

Dr Z

hong

wei

Che

n1, P

rof.

Jim

Und

ersc

hultz

2 , Pr

of. S

uzan

ne H

urte

r3, 4

1 The

Uni

vers

ity o

f Que

ensl

and,

Sch

ool o

f Mec

hani

cal a

nd M

inin

g En

gine

erin

g 2 T

he U

nive

rsity

of Q

ueen

slan

d En

ergy

Initi

ativ

e 3 T

he U

nive

rsity

of Q

ueen

slan

d C

entr

e fo

r Coa

l Sea

m G

as 4

Ener

gi S

imul

atio

n In

dust

rial R

esea

rch

Cha

ir

Mec

hani

sms

of n

atur

al s

urfa

ce m

ovem

ent i

n th

e Su

rat B

asin

Surf

ace

mov

emen

t in

FA1

Sum

mar

yG

roun

d su

rface

mov

emen

t can

be

due

to n

atur

al p

roce

sses

and

hum

an a

ctiv

ities

. Th

is p

roje

ct a

ims

to u

nder

stan

d th

e m

echa

nism

s of

gro

und

surfa

ce m

ovem

ent a

nd

thei

r ind

ivid

ual c

ontri

butio

ns to

net

mov

emen

t. A

larg

e In

terfe

rom

etric

Syn

thet

ic A

pertu

re R

adar

(InS

AR) d

atas

et c

over

ing

the

Sura

t Cum

ulat

ive

Man

agem

ent A

rea

was

ana

lyse

d, fo

cusi

ng o

n ar

eas

whe

re th

ere

are

no a

ctiv

e co

al s

eam

gas

(CSG

) wel

ls. T

hese

non

-pro

duct

ion

area

s ha

ve b

een

exam

ined

to d

evel

op a

n un

ders

tand

ing

of b

ackg

roun

d su

rface

mov

emen

t. Fo

ur fo

cus

area

s, s

how

ing

mea

sure

able

cha

nges

ove

r tim

e, e

xhib

ited

an o

vera

ll do

wnw

ard

surfa

ce m

ovem

ent (

subs

iden

ce).

Thre

e fo

cus

area

s sh

owed

cyc

les

of

subs

iden

ce a

nd u

plift

that

app

ear t

o be

clo

sely

cor

rela

ted

with

rain

fall

even

ts –

as

show

n in

the

resu

lts fo

r FA1

. The

soi

l typ

es in

thes

e th

ree

area

s w

ere

foun

d to

be

in

agre

emen

t with

the

hypo

thes

is th

at th

e ob

serv

ed s

urfa

ce m

ovem

ent i

s du

e to

ra

infa

ll in

filtra

tion-

indu

ced

cons

olid

atio

n of

the

shal

low

soi

l lay

ers

and

also

su

bseq

uent

moi

stur

e-in

duce

d sh

rinka

ge a

nd s

wel

ling.

Th

is in

vest

igat

ion

has

prov

ided

a fo

unda

tion

for f

urth

er re

sear

ch in

to th

e co

mpl

ex

prob

lem

of s

urfa

ce m

ovem

ent,

and

in p

artic

ular

, the

dec

onvo

lutio

n of

the

vario

us

cont

ribut

ions

that

occ

ur a

t diff

eren

t dep

ths,

leng

th a

nd ti

me

scal

es.

UQ

-CC

SG A

nnua

l Res

earc

h R

evie

w

2018

Cen

tre

for C

oal S

eam

Gas

Recommended