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8/10/2019 Directive 009
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Directive009
Directive 009: CasingCementing MinimumRequirements
July 1990
Effective June 17, 2013, the Energy Resources Conservation Board(ERCB) has been succeeded by the Alberta Energy Regulator (AER).
As part of this succession, the title pages of all existing ERCB directivesnow carry the new AER logo. However, no other changes have beenmade to the directives, and they continue to have references to theERCB. As new editions of the directives are issued, these referenceswill be changed.
Some phone numbers in the directives may no longer be valid. ContactAER Inquiries at 1-855-297-8311 or inquiries@aer.ca.
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Directive0
Casing Cementing MinimumRequirements
July 1990
Effective January 1, 2008, the Alberta Energy and Utilities Board (EUB)has been realigned into two separate regulatory bodies, the EnergyResources Conservation Board (ERCB), which regulates the energyindustry, and the Alberta Utilities Commission (AUC), which regulates
the utilities industry.
As part of this realignment, the title pages of all existing EUB directivesnow carry the new ERCB logo. However, no other changes have beenmade to the directives, and they continue to have references to EUB.As new editions of the directives are issued, these references will bechanged.
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ENERGY RESOURCES CONSERVATION BOARD
Directive 009: Casing Cementing Minimum Requirements
July 1990
Published by
Energy Resources Conservation Board640 5 Avenue SW
Calgary, Alberta
T2P 3G4
Telephone: 403-297-8311
Fax: 403-297-7040
Publications@ercb.ca
Web site: www.ercb.ca
mailto:Publications@ercb.cahttp://www.ercb.ca/http://www.ercb.ca/mailto:Publications@ercb.ca8/10/2019 Directive 009
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ALBERTA ENERGY AND UTILITIES BOARD
Guide 9: Casing Cementing Minimum Requirements
July 1990
Published by
Alberta Energy and Utilities Board640 5 Avenue SW
Calgary, Alberta
T2P 3G4
Telephone: (403) 297-8311
Fax: (403) 297-7040
Web site: www.eub.gov.ab.ca
8/10/2019 Directive 009
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u
asing
ementing
Minimum Requirements
lberta
Energy and
Utilities oard
8/10/2019 Directive 009
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. .
' -
.
asing ementing
Minimum Requirements
Important Message
The
EUB is updating
publications
that
pre-dated
the
amalgamation of the Energy Resources Conservation Board
(ERCB) and
the
Public Utilities Board (PUB) in 1995.
The
Alberta Energy
and
Utilities
Board (EUB) takes the
place
of
any references to the
ERCB, PUB,
or their full names.
Major revisions
to EUB documents are
occurring
as part of
regulatory
re-engineering and streamlining initiatives.
In
some cases, older publications
are
withdrawn or integrated
into new ones.
his
document
has not yet
gone through the
revision process. Please
consult
the
latest
Acts
and
Regulations to interpret and apply legal requirements.
To find
out
a
current contact
name
for
this
publication,
please call 297-8311.
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ENERGY RESOURCES
CONSERVATION BOARD
GUIDE
SERIES
July
1990
Edition
Published by
Energy
Resources Conservation
Board
640 Fifth Avenue W
Calgary Alberta
T2P G4
Telephone 403) 297-8311
Facsimile
403)
297-7040
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CONTENTS
Page No
1
INTRODUCTION
1
2
THE
REGUL TIONS
3
3
CEMENTING REQUIREMENTS 5
3.1
Conductor Pipe
5
3.2 Surface
Casing
5
3.3 product ion
Intermediate
and Liner
casing
5
4
SPECIAL
CEMENTS
7
4.1
Foam
Cement
7
4.2 Thermal Cement
7
5
METHOD OF DETERMINING
REQUIRED
CEMENT
TOP
TT CHMENT
1
Map of
Required Cement
Tops
TT CHMENT
2
Example Cement Report
Form
9
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INTRODU TION
The purpose
of t i s guide
i s
to outline casing cementing
requirements
in
accordance
with
sections
6080
and
6 090
of
the
oi l
and Gas
Conservation
Regulations
This
guide:
o quotes
the
relevant sections of the
regulations;
o outlines the method for determining the required
cement tops
when
cementing
casing;
o outlines
cementing requirements for casing;
o
outlines
Board
requirements
for the
use
of
special
cements such as
foam
and thermal cements
http://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdf8/10/2019 Directive 009
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3
2 THE REGULATIONS
The regulat ions governing the
cementing
of
casing
for wells
in Alberta are
the
oil and
Gas
Conservation
Regulations ,
sections
6.080(4)
and
(6)
and
6.090,
as
quoted
below.
2.1 section
6.080
(4) Where the
required
surface casing se t t ing depth
i s
less
than
(a) 180
metres,
or
(b) 25 metres below any aquifer which is a
source of useable water
the
casing
s t r ing
next
to
the
surface casing
shal l
be
cemented
ful l
length.
NOTE: The in tent
of
section 6.080(4) above i s
to
ensure the
protection
of
useable groundwater by the adequate cementing
of production
and/or intermediate
casing in l ieu of the
requirement to se t deeper surface casing.
11 6) The l icensee
shall ensure that surface
casing i s
cemented ful l length from the depth
prescribed
by
the
Board
before
any
r i l l ing i s commenced more
than 10 metres beyond the prescribed set t ing
depth.
2.2
section
6.090
The
Licensee shall cement
casing
as
prescribed by
the
Board's Guide G-9, Casing Cementing - Minimum
Requirements, as amended from
time
to time, unless
the Board,
(a) exempts the
Licensee
from the
requirements, or
(b)
prescribes
another
method
for
cementing the casing for a par t icular
well
or area.
http://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdfhttp://www.eub.ca/docs/requirements/actsregs/ogc_reg_151_71_ogcr.pdf8/10/2019 Directive 009
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5
3 CEMENTING REQUIREMENTS
The l icensee i s responsible for the
satisfactory
cementing
of casing,
as
required by the
oi l and
Gas Conservation
Regulations.
These
requirements
are
summarized
below:
3.1
Conductor pipe
where required for well
control)
a) The conductor
pipe
shall be cemented ful l
length
by
the
circulat ion
method.
b)
I f the
cement job
fa i l s
to
retain i t s
integri ty,
then dri l l ing shall be suspended and
remedial
action
undertaken.
c) The
hole
diameter shall be a t leas t 100 ro larger
than
the
diameter
of the pipe.
3.2 Surface
casing
a) Surface
casing shall
be
cemented
ful l
length.
b) I f cement returns are not obtained a t surface
or
the cement level in the annulus drops, then the
cement top shall
be determined and
the appropriate
ERCB Area Office contacted to discuss
remedial
action.
c)
i l lers
or additives
tha t
reduce
the
compressive
strength
shall not
be used
in the cement.
d) Surface casing shall be
adequately
centralized
a t
the
top
and
bottom and
a t 50-metre
intervals .
3.3
Production, Intermediate,
and
Liner
Casing
a)
Cement shall
not
be pumped down the
annulus
from
surface
unless
approved by a Board
representative.
b) The minimum cement top shall be determined
as
outlined
in
section 5 of th is guide.
c)
The
required
cement volume shall be based
on
hole-size measurements, taken from a cal iper
log,
plus a minimum
of
20
per
cent excess.
n
exemption
from the 20
per
cent excess requirement may be
granted upon application.
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6
d)
e)
The use of f i l l e r s and/or additives
to
the cement
system is acceptable only i f the
compressive
strength
of the
mixture i s
a t leas t
3500 kPa af ter
curing
for 8
hours
a t the
temperature of the
uppermost hydrocarbon bearing zone.
The
temperature
of the
zone
referred
to
in
item
d)
should be calculated
using
a
surface
temperature of
4.4C
and
a 2.7C/100 m
temperature
gradient where
the actual
temperature
i s unknown.
f) stage cementing programs,
which
will resul t in an
open-hole
uncemented)
interval behind casing,
shal l
be approved by a
Board
representative.
g)
Liners
shal l be cemented ful l
length.
h) During the cementing operation, flow
returns
shal l
be
visually
monitored. f
cement
returns are not
obtained
a t
surface
when cementing ful l length,
or
i f
displaced
dri l l ing f luid returns indicate tha t
the
required
cement top may not have been obtained,
a cement-top locating
log shall
be run. The log
and
a proposed remedial
cementing
program
shal l
be
submitted to the
Board
within
60 days of
r ig
release, or
prior
to commencement of completion
operations.
i) Full detai l s of the cementing operation
shal l
be
recorded and submitted
to the
Board
ei ther
on the
tour reports
or
on a
casing cement report simi
l i a r
to
the
example
in the
Attachment 2.
j) The casing shal l
be
adequately centralized. On
intermediate and production casing, central izers
shal l
be placed a t the top and bottom
of
a l l
productive formations and a t
50-metre
intervals
to
the required cement
top.
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9
5 METHOD OF DETERMINING REQUIRED
CEMENT
TOP
In order to determine the required cement top
in
a given
area
refer
to the Map
of Alberta (Attachment
1) and
follow
the steps outlined
below.
(a) In
al l cases
i f less
than
180
metres
of surface
casing
has been
run,
or
casing is not set
more than
25 metres below any aquifer which contains
useable
water,
.the
intermediate or production casing
shal l
be
cemented ful l length. This requirement will take
precedence over the required cement top in the map
(Attachment 1) or on the licence.
(b) Refer to the map, which identif ies the required
cement
tops
by
township, range, and meridian.
(c)
Using the
example of:
Township: 36, Range: 24,
west
of the 4th
Meridian,
the required cement top
i s
100
metres
above the
top of
the
viking and/or
any
shallower potential
hydrocarbon-bearing zone .
(d)
Should the
township
and range
be blank,
then the
appropriate ERC Area
Office shall
be
contacted
af ter
the
well
has
been
dril led
and
evaluated
to
obtain
approval of the l icensee 's
proposed
cement
top.
(e) The cement top requirements shown on the map are
subject to change, and prior i ty shall be
given to
requirements
specified on the well l icence,
or
by a
Board representative.
(f) Requests for a
relaxation
or change in
the required
cement top will not
normally
be considered
prior
to
the dri l l ing and evaluation of a well; however
provided
good offset data exists , requests will be
evaluated, but
may
not
be
granted.
g)
All
requests must be supported
by log or sample
interpretation, or other
data
from
offset wells
or
the
well
being
dri l led.
These
requests should be
directed to the appropriate ERC Area Office as far
in advance
of
the
cementing operation as possible.
f
log
evaluation
indicates
a shallower
hydrocarbon-bearing zone than the required cement
top, t shall be
covered
and the Board notif ied
accordingly.
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ATTACHMENT
2
C SING ND CEMENTING REPOR
lI
..
E I YR
I
0
ITol
TUlE
I YR
I
0
I
WElLIWIE (COI.lPLMJ
UNIQUE
LD.
LE
t.SD
SEC
1WP ReE
W
-
UCENCEE AGENT UCENCE NO.
-
w
3:
UCENCEE
REP
COmRACTOR NlD RIC NO.
.
BIT
SIZE
AVf:1I}I; HOLE SIZE
(CAlJPER)
lOYAL.
DEPTH
m
1
KELLY
BUSHINC
mm
mm
0
CDIENT lOP RQU1REIIENT
I REQUIRED CDIENT
\IOLUU
1110100 lYPE NlD DENSITY
m
3
SIZE
INTERVAL.
UNEAR
c.\SWC
CONNECI1ON
NUIoIl ER
COWENIS
(mm)
m)
DENSnY.
GRIDE
TYPE
OF .IOCNl S
(NEW ? USED
1
CI IS
CASING
M;
PER
UCENCE OR APPRfNAL.
1
IF
NOT,
YMf
1
z
Fl.CI.t.T COLINl MAKE
SF:r1J
SItO IoIAKE
I T AT
m
CENTRAIJZERS -
NO.
AND
DEPTH ST IJ
SCRAlCHEIIS -
NO.
AND
DEPTH ST AT
CASING
REC1PROCA IED
1
J OTAm)
1
STAGE
TOOL -
MAKE/DEPTH
m I TAGE
NO.
1
m
I
TAG
NO.
2
mTD
mTD
m
COIENl1NG
COIIPANY
OPERATOR
TYPE
IDDITMS
TDIH:s YOLLJUE
DENSI1Y
IIIX WAlER 1HEORETICAL 1NlERVAL.
et)
m
3
)
(Iog/m
3
)
emJ)
em)
CI
z
;:::
z
UJ
PREfUJSH VOWIoIE TYPE
I
STNn'
I
FINISH
loll)(
CDIENT
YCLIJUE
I
START
I
fINISH
:l:
w
I I
m
3
I
tJ
I
DISPI.ACEI.IENT VOW ..
E lYPE
I
START
I
fINISH PWC DOWN PftESSURE
I l1IoIE
I
I I
IcPo I
ClRCULAllNC
PRESSURES
Fl.CI.t.T
HElD
1
kPc
kPc
kPc
GOOD
RETURNS
lIiROUGHOUT JOB?
CflIENT REI\JItNS ?
AIoIQUNT m
3
1
FALLBACK
I
SAIoIPLES
TAKEN ?
SNoIPLES SET UP ?
:
CO
.....
ans _____________________________________________________________________________________________
_____________________________________________________________ ~ R E P __________________ __