coiled tubing introduction-part 1

8/15/2019 Coiled Tubing Introduction-Part 1

http://slidepdf.com/reader/full/coiled-tubing-introduction-part-1 1/109

Coiled Tubing Introduction

• Surface equipment

• BHA assemblies

• Some problems and observations



World Wide CT Records

Largest CT in Use 3-1/2"

Max Depth 24!!!

Max #ori$ontal 1%!!! &'! deg(-W)tch *

Longest *#, 1!! - per. gns - U0

Longest trings 23!!! o. 2-3/'"

2'!!! o. 1-1/2

Max Wellhead +ressre '!! psi

Max Deplo)ent +ress 4!! psi

Max *# Tep %!! - Mex %'! 5apan

Max ,cid at Tep 2'6 at 2'! in D7aiCT in #2 %6 in 8reece

'6/3!!- 8l. o. Mexic

&string sed one tie(

CT in C92 16 - &string rined(



Power Pack

InjectorReelOperator’s Cab

Transports

and Pumpers

wind

Typical CT Layout



CT Reel Configurations

•CT Reels available in number of configurations

– Truck mounted fi!ed" # permanentl$ fi!ed to t%e truck c%assis

– Truck mounted skid" # ma$ be c%anged out

– Skid mounted # for offs%ore operations

– Trailer mounted # for large capacit$ lengt%" or %eav$ &eig%tstrings

– CT logging reel # fitted &it% electrical s&ivel'collector

– Special application reel # t$picall$ for completion applications•(ocal conditions'nature of CT operations determine t$peof reel required



Coiled Tubing Rig up

in Alaska) T&o &ells

on t%e same pad are

being)



CT *quipment Basics

• Components

– Coil

– +o&er pack

– Component Controls

– Reel

– In,ector &it% guidearc%"

– -ell Control Components



Coil T$pes and Availabilit$

• CT diameters

• CT &all t%ickness

• CT tapered strings

• CT strengt% ranges

• CT metal c%oices• Composite CT



CT .iameters

• /'01 2'3 and /4 earl$ diameters

• /#/'34 and /#/'04 &ork%orses /#2'3"

• /#2'3 to 0#2'54 larger &orkstrings 2#/'0"

• 2#/'0 and 3#/'04 and larger" # flo&lines



CT production for 6or /778

• 1” 1.! "" #t

• 1.!” 1$.! "" #t

• 1.” %.! "" #t• 1.&” '.' "" #t

• !” 1.!! "" #t

• !(')*” +.% "" #t

• !(&)*” +.$' "" #t

• '(1)! +.$ "" #t

• $,$.” +.1! "" #t



Tapered Strings

• Common is I).) taper # &eld area taper

• 9ncommon is :).) taper # deeper &ells1

some %$draulic problems



-unction weld in #lat strip

utt /eld 0 early

strin joiner and

common repair weld.



ias weld

in #lat strip

T%e bias &eld offsets

t%e &eld ends on t%e

strip as it is formed into

a tube – muc% stronger)



6ield -elds

• Al&a$s a Butt &eld)

• Can decrease tensile strengt% of CT b$ ;<=

or more)

• >ualit$ of field &elds varies enormousl$

• Avoid field &elds &%en $ou can)

– 9pper part of tubing is &orst place for a butt

&eld)



?aterial Strengt%s

• ;;1<<< psi limited"

• @<1<<< to 5<1<<< psi still in use"

• /<<1<<< psi no& ver$ common"



Trade#:ffs

• strengt% vs cost

• ductilit$'&eakness vs strengt%'cost

• corrosion possibilities• strengt% vs service life

• In general1 %ig% strengt% CT lasts longer and is morefatigue resistant) But1 &%at about corrosionHardness matters) Stress Corrosion cracking andembrittlement)

, l i . C il d T 7i



,nal)sis o. Coiled T/7ing

Mod ,:!: Mod ,:!%

Car7on !;!'-!;1 !;!'-!;1%

Manganese !;:!-!;! !;:!-!;!

+hosphor/s !;!3! ax !;!2 ax

/l./r !;!! ax !;!! ax

ilicon !;3!-!;! !;3!-!;4

Chroi/ !;4-!;%! !;4!-!;:!

<ic=el !;2 ax !;1! axCopper !;4! ax !;4! ax

Molo7id/ !;21 ax !;!'-!;1

C7-> !;!2-!;!4



?ield trength #R* #RC Min; @long;

&psi(

!!!! 22

%!!!! '-4 3!6

'!!!! !-' 2'6

!!!! 4 22 26

1!!!!! 2!-2 226 est;

11!!!! 22-2' 1'6 est

SPE 46052

2ew CT Properties



#ardness As C

0

2

4

6

8

10

12

14

16

18

20

19 20 21 22 23 24 25 26 27 28 29

#ardness #RC

1 1

C

R e s i s t a n c e

1 c

Corrosion Resistance 3s 4ardness



Composites

• (imited 9se

• Composites lig%ter'more fle!ible t%an steel)

• ?ore costl$ t%an steel

• (imitations

– Creep under load

– Temperature

– .o&n%ole Buckling resistance



Surface *quipment

• +o&er +ack

• Reel

• Controls

• In,ector

• Seals

+ k ll di l d i % d li



+o&er pack – usuall$ diesel driven %$draulic pumps)

Requirements set b$ equipment in use)



T$pical (a$out of Control Cabin

Controls and Instruments /"L a y e r 1O P E N

S T R I P P E R# 2

L E V E L W I N DA R M

U P

D O W N

E M E RG E N C Y TR A C TIO N SU PP LY

I N J E C T O R I N S ID E TR A C TIO N P RE SS UR E

1 5 0 0 P S I M A X

TO P

O N

O F F

O N

O F F

O N

O F F

M I D D L E

O T TO M

I N S ID E T R A C T I O N

P R E S S U R E A D J U S T

I N S I D E T R A C T IO NS U P P L Y P R E S S U R E

L E E DP R E S S U R E

I N J E C T O R O U T SI D E TE N SI O N P R ES SU R E

1 5 0 P S I M A X

P R E S S U R E

P R E S S U R E

P R E S S U R E

S T R I P P E R# 1

R E T R A C T N E U T R A L P A C ! R E T R A C T N E U T R A L PA C !

S T R I P P E R S Y ST E M P R E S S U R E5 0 0 0 P S I M A X

S T R I P P E R

P R E S S U R E A D J U S TA I R RE G " C O N T R O L

# 2S T R I P P E R

# 1S T R I P P E R

O P S U P P LY O P P R E S S U R E O P S U P P L Y P R E S S U R E

O N

O FF

C L O S E O P E N C L O S E O P E N

C L O S E O P E N C L O S E O P E N

L IN D R A M

P I P E R A M

S E A R R A M

S L I P R A M

OP

I G

LO W

IN J E C T O RS P E E D

R E E L R A ! E

O F F

R E E L P R E S S U R E

R E E L P R E S S U R E A D J U S T

R E E L C O N T R O LL E V E L W I N DO V E R R I D E

I N S I D E T R A C T I O NP R E S S U R E D R A I N

C L O S E

I N J E C T O RM O TO R P R E S S U R E

IN J E C T O R M O T O R P R E S S U R E A D J U S T

I N J EC T O RC O N T RO L

I N J E C T O R D I R EC T I O N A LC O N T R O L V A LV EP I L O T P R E S S U R E

P R I O R I T Y P R E S S U R E2 $ 0 0 0 P S I M A X

IN

O UT

O N

O F F

O N

O FF

A I P S U P P L YP R E S S U R E

% 0 G P MP U M P

& 0 G P MP U M P

T R O TTL E

E N G I N ES T O P

E M E RG E N C YS T O P

A I R O R N

I N J EC T O R C A I NL U R IC A T I O N

R E E L T U I N GL U R IC A T IO N

W E L L E A D P R E S S U R EC I R C U L A TI N G P R E S S U R E

TU I N G W EI G T IN D IC A TO R

S ' ( )* + , e r - e r

D . / e ) )

(ooks more comple!1 but main data is from load1 &ell%ead pressure

and annular pressure)

?ain controls are in,ector %ead and coil spooling)



+rincipal Dauges

– -ell%ead +ressure Dauge• displa$s &ell%ead pressure at t%e B:+ pressure port

– Circulating +ressure Dauge• displa$s pressure at t%e reel#manifold pressure sensor

– -eig%t Indicator • displa$s &eig%t e!erted b$ t%e tubing on t%e in,ector %ead



*lectronic *quipment

•6ollo&ing equipment used to monitor CT91 tubing1

and &ell data

– *lectronic .ept% Sensors• provide remote dept% displa$s and signals to a +ACR unit

– *lectronic +ressure Sensors• monitor &ell%ead pressure1 circulating pressure and tubing &eig%t

– Tubing ?onitoring *quipment

• gives remote displa$ of tubing condition and ma$ record lifestatistics

• data ma$ be recorded



Running Speeds

• 6irst time into a &ell # 3< to @< ft'min

• Eormal run in operations # ;< to /<< ft'min

• Spool#out – depends on t%e &ell1 t%e BHA1

coil equipment1 friction and operator)

• Runa&a$ # e!perienced 5<< to 7<< ft'min)



T$pical CT Reel # Side Fie&



-%atGs .ifferent T%an ointed +ipe

All fluids in,ected from t%e

surface enter t%e CT at t%e

bed#&rap end) All fluid %as

to travel t%roug% all of t%ecoil)

T%at influences friction since

friction is near constant &'

CT &%et%er $ou a in,ecting

fluid at / foot into t%e &ell or

/<1<<< ft into t%e &ell)



Some of t%e e!tra fittings in t%e

input plumbing allo& a ball to beinserted and dropped4 pumped

t%roug% t%e coil") T%e ball travel

ma$ take several minutes to clear

t%e coil and enter t%e &ell)

A flo& control manifold T%is one allo& reverse circulation t%roug%



A flo& control manifold) T%is one allo& reverse circulation t%roug%

coiled tubing)



Reel .rum Capacit$

B

A

Freeboard

C

6reeboard is normall$ not muc%

of an issue1 but can become ver$

important if t%e CT is not spooled

tig%tl$ and t%e drum is nearl$ full

for a deep &ell CT ,ob)



Reel Capacity 5ariables

• Reel diameter

• Reel widt6

• 4ub diameter ( set by CT O7

• Pipe O7

• Ti6tness o# wind 8operator e9pertise:

• /ei6t;



Reel Bn.oration .or >arios i$es o. CT

CT Dia; Reel #7 Dia; 8ide ,rch &Reel Width( ,pprox; Capacit)

&in( &in( &in( &in( &.t(

!;% 4' 4'

1 :! 4'-4

1;2 %2 4'-%2 11% 1%!!

1; '4 &4'(-%2 12' 1!!!

1;% : %2-: 14' 1'!!!

2 : %2-:

2;3% 1!' !-12!

2;'% 1!' !-12!

3; 12! !-12!

<elected Reel 7iameter In#ormation



<poolin =ield

• Coiled Tubing is $ielded as it is spooled

• Radius to produce $ielding is

RJ*.'0"'S$

&%ereRJbend radius1 ft

*J elastic modulus1 2<!/<8 psi. J tubing diameter1 inS$ J $ield strengt%1 psi

T%e level#&ind like a bait#casting fis%ing reel" %elps



g g " p

feed t%e coil onto t%e reel)



.ept% ?easurement *quipment

•.ept% measuring equipment #*lectronic or mec%anical

•6requentl$ mounted on in,ector %ead•.ept% information commonl$ acquired b$ t&o met%ods• 6riction#&%eel counter bet&een in,ector

c%ains and stripper • *ncoder assembl$ on in,ector#%ead c%ain drive s%aft



In,ector Duide Arc%

•Duide arc%

– Turn tubing t%roug% angle bet&een &ell%ead and

CT reel – CT supported b$ rollers at K/<#in) intervals

around gooseneck

• guide arc% radius significantl$ affects fatigue in CT

string



Comparison of Duide Arc% SiLes

50-in. radius(HR 240)





Recommended Duide Arc% RadiiCoiledTubing OD(in.)

0.7501.0001.2501.5001.7502.0002.3752.8753.500

Typical ReelCore Radius

(in.)

2420-3025-3630-4035-4840-4848-5454-5865-70

Typical GuideArch Radius

(in.)

4848-5448-7248-7272-9672-9690-12090-12096-120



CT Injectors

• In,ector *volution

– &%eel1 c%ains1 c%ain and back to t%e &%eel

• Dripper .esign and *ffect on t%e Tube

• +o&er Requirements

• (oad Cells

• -ear and 6ailure +oints

• Control vs micro4 control



In,ector Head Components

•+rincipal components of in,ector %ead

– .rive and brake s$stem

– C%ain assembl$

– Traction and tension s$stem

– Duide#arc% assembl$

•Secondar$ or support s$stems

– -eig%t indicator

– .ept% sensor mounts

– Stripper mount



In,ector Head .rive and Brake

S$stems•.rive and brake s$stems can e!ert %ig% forces on

– CT string

– tubulars

– &ell%ead equipment

•CT9 operator must

– Be a&are of s$stem design and la$out

– Be familiar &it% control and relief valves

– 9nderstand limitations of CT string• avoid application of e!cessive force



In,ector Head .rive S$stems

•In,ector %eads %$draulicall$ driven

– T&o or four %$draulic motors

– ?otors connected's$nc%roniLed t%roug% gear s$stem

– .rive directed to c%ain drive sprockets via drive s%afts

– Rotation'speed of motors controlled b$ valve on po&er pack

– H$draulic s$stem pressure'rate controlled from CT9

control console

– +ressure relief'crossover relief valves• protect tubing'%$draulic components



T$pical In,ector Head

Stripper assembly

Gooseneck or guide-arch

Injector drive motor



T$pical In,ector Head Support

Substructure

Arco



In,ector Head Brake S$stems

•Brake %$draulicall$ controlled

– H$draulic pressure required to release brake• fail#safe in operation

– Application of brake is automatic• controlled b$ drive s$stem %$draulic pressure

• applied &%en %$draulic pressure belo& preset value

•Some %$draulic motors %ave %ig%'lo& gear option

– Selected remotel$ from t%e CT9 t%e control console

– Allo&s in,ector %ead to operate more efficientl$



In,ector Head C%ain Assembl$

•?ost in,ector %eads %ave t&o sets of opposingendless c%ains

– Series of gripper blocks mounted on eac% c%ain

– Dripping profile of eac% block suits a specific tubing siLe

•*ntire CT string load %eld b$ face of t%e gripper

block or insert – :ften ac%ieved under significant force

– Selection'operation'maintenance of c%ain componentss%ould minimiLe risk of damage to CT string



In,ector Head C%ain Dripper Inserts

•Removable gripper inserts on most in,ector %eads

– Run range of tubing siLes &it%out removing'replacingentire c%ain assembl$

– Reduce time'effort required to reconfigure in,ector %ead• &%en running a different siLe of CT string

• &%en running a tapered CT string

– Reduce cost of replacement &%en &orn



Ribbed in,ector

block)



Smoot% faced

in,ector



SS5<< C%ain Assembl$



Bottom sprocket on in,ector)



Inside C%ain Tensioner S$stem

•Inside c%ain tensioner s$stem

– Also kno&n as skate s$stem or traction tensioner s$stem

– +rovides force for adequate grip on tubing string• force is applied to t%e back of t%e c%ain assembl$

•C%ains fitted &it% bearings

– Roll smoot%l$ over tensioner s$stem &%ile transmittingload

– *nable c%ains to rotate easil$ &it% %ig% loads



Traction and Tension S$stems

•In,ector %ead traction or inside c%ain tensioner s$stem

– Also kno&n as skate s$stem

– +rovides force to securel$ grip tubing

– 6orce applied t%roug% 2 separate sets of %$draulic c$linders• reduces risk of ma,or operating failure if component fails

•:utside c%ain tensioner s$stem

– *nsures adequate tension in c%ain section outside verticaldrive plane

– Tension provided b$ %$draulic rams



Backpressure Ad,usted to

+rovide Suitable Tension

Incorrect

Correct



BJ Services



Coiled Tubing

Deployment

0ill Line0ill Line

!;' !;'

lolineloline

1!1;: 1!1;:

Wellhead

@D@D

&Tester(&Tester(

lo Linelo Line

1!1;: 1!1;:

Drilling poolDrilling pool

1%;4 3 M+a1%;4 3 M+a

Coiled T7ing *9+Coiled T7ing *9+

1%;4 3 M+a1%;4 3 M+a

*lind/hear Ra*lind/hear Ra

lip/+ipe Ralip/+ipe Ra

lo poollo pool

,nnlar,nnlar+reAenter +reAenter

ConAentional

Rig *9+

*#,*#,

Deplo)ent *9+Deplo)ent *9+

1%;4 3 M+a1%;4 3 M+a

8ate >alAe8ate >alAe

1%;4 1%;4 LocatingLocating

RaRaUpperUpper

+ipe Ra+ipe Ra

Loer +ipeLoer +ipe /lip Ra /lip Ra

Deplo)ent *9+



+%$sical Brace

• If t%ere is a long space lengt% is a variable

&it% pipe diameter1 &all1 and buckling

force" t%en a brace bet&een t%e bottom oft%e in,ector and t%e first seal is necessar$)



Snubbing'Stripping 6orces on CT

• 6orce to pus% CT t%roug% stuffing bo!'stripper opposite running"

• 6orce on CT from -ell Head +ressures #up&ard"

• 6orce to overcome friction oppositerunning"

• 6orce from &eig%t of CT M BHAdo&n&ard"



Load <ecessar) to +ll Wireline into Wellhead

0

10

20

30

40

50

60

70

80

90

100

0 2000 4000 6000 8000 10000 12000

Wellhead +ressre ps i

L o a d

< e c e s s

a r )

l 7 s

0

0

0

0

<)<@04

<)/<54

+roblem in rig up %eig%t and lubricator lengt%)



Load <ecessar) to +ll Ca7le into Wellhead

0

100

200

300

400

500

600

700

800

0 2000 4000 6000 8000 10000 12000

Wellhead +ressre ps i

L o a d

< e c e s s a

r )

l 7 s

3/16"

5/16"

7/16"

<nubbin >orce on CT at /ell6ead



+ress/re Bnd/ced n/77ing orce > Well #ead +ress/re .or >ario/s Coiled

T/7ing i$es &M/st add stripper .riction .orce(

0

20000

40000

60000

80000

100000

120000

140000

160000

0 2000 4000 6000 8000 10000 12000 14000 16000

Well #ead +ress/re psi

* a s e 1 n / 7 7 i n g 4 o r c e

l 7 s

1" CT

1-1/4" CT

1-1/2" CT

1-3/4" CT

2" CT

2-3/8" CT

2-7/8" CT

3.5" CT



Dap bet&een t%ein,ector and t%e

stuffing bo! – T%e

pipe in t%is area is

ver$ susceptible to bending – Eote t%e

brace around t%e CT)



-eig%t Indicator

• -%at negative &eig%t &ill cause in,ector to

lift off load cell



-eig%t Indicator *quipment

Front weight

sensorRear weightsensor



<eals

• Stuffing Bo! # +rimar$ sealing mec%anism

for isolating t%e &ellbore) +ositioned above

t%e B:+1 ,ust underneat% t%e in,ector %ead)A connector attac%es t%e bo! to t%e B:+)

• B:+ # multi#level control for closing in t%e

&ell1 s%earing t%e CT1 sealing around t%eCT and gripping t%e CT) ?a$ be used in

pairs in e!treme applications)

CT B:+Blind



Blind

S%ear

+ipe

Slip



T$pical (oads /);4 CT1 ;<<< psi

• snub force J /)@8@ in0 ! ;<<< psi"

J552; lb

• stuffing bo! friction drag forceJ0<<< lb

• total J/<52; lbat start of t%e CT run#in



Load C6anes w)CT inserted

• /);1 <)/<74 &all1 /)802 lb'ft

• one foot of CT in &ell J /<522 lb

• /<<<G CT in &ellJ/<52;#/<<< ! /)802"J70/0 lbs

• /<1<<<G CT in &ellJ /<52;#/<1<<<!/)802" J #;27; lbs

• t%is assumes no &all friction

S l i CT i f ll



Selecting a CT siLe for a &ell

application)• Clearances

– 6or circulation

– 6or passing debris t%roug% t%e CT#tubing annulus

– -%at %appens &%en CT collapses .oes it stick itself

in a profile or ot%er close clearance -%at is diameter

of collapsed CT)

– -%at %appens &%en t%e &ell tubulars are muc% larger

t%an t%e CT Can it buckle -%at if it collapses

Wor=ing Tensile Loads o. ConAe)ances



Wireline Wor=ing Load Weight o. Wire/T7e Rnning peed

!;!%2 %2! !;!14 1!!-1! .t/in

!;!'2 3! !;!1'!;!2 11:! !;!23

!;1!' 1'2% !;!31

CT

1;2 21!! 1;332 !-1!! .t/in1; 2::!! 1;:23

1;% 3144! 1;1

2;3% 42! 3;!11

T7ing

2;3% %!!! 4;: - 1 .t/in

2;'% %2!! :;4

3; 112!! ;2

3-1/2" D+ 1'!!! 1;



ob .esign 6actors

– -ell control must be maintained

– +ersonnel safet$ # perform tasks using requiredsafet$ equipment

– :peration designed'e!ecuted &it%in operatinglimits

– :perating standards

• operation e!ecuted in accordance &it% operating practices1 regulations and safet$ standards) T%ese ma$var$ &it% t%e task1 compan$ and location)



.esign Soft&are

•T$pical ,ob design soft&are'modelling

– Tubing forces – 6atigue tracking soft&are

– :perating limit soft&are

– -ellbore simulator

– 6riction pressure

– 6oam cleanout



Tubing 6orces Soft&are

•Ne$ features'functions

– Anal$ses loads applied to CT

– +redicts

• &eig%t indicator readings

• point of %elical buckling and lock#up

– +rincipal functions

• confirm &orkstring can be run to desired position in &ellbore

• verif$ toolstring &ill pass doglegs'&ellbore anomolies

-eig%t Indicator (oad #



gFerification

4 ! ! ! ' ! ! !

- ! !

4 - ! !

! ! ! M e a s / r e d

R B # & o d e l (

+ 9 9 # & o d e l (

M @ , U R @ D D @ + T # 9 T R B < 8 & . t (

W

@

B 8

#

T

B <

D

B C

,

T

9

R

R

@

,

D

B <

8

& l 7

. (



6atigue Tracking Soft&are


– +redicts remaining useful life of a &orkstring

• operates in con,unction &it% database for eac% reel – +rincipal functions

• predict life remaining in eac% &orkstring element

• confirm operation can be completed safel$

• minimiLe risk of tubing failure during operation



CT String (ife Tracking

2 ! ! ! 4 ! ! ! : ! ! ! ' ! ! ! 1 ! ! ! !

1 !

2 !

3 !

4 !

- !

: ! W e l d L o c a t i o n

+ r e A i o / s L i . e

C / r r e n t L i . e

D B T , < C @ R 9 M D 9 W < # 9 L @ @ < D 9 T R B < 8 & . t (

+

R

@

D

B C

T

@

D

L

B 4

@

R

@

M

,

B <

B <

8

& 6 (



Support Slides



:perating (imit Soft&are


– .etermines pressure'tension limits underanticipated conditions

– Calculates collapse pressure limit• takes string ovalit$ into account

– +rincipal function• grap%icall$ depicting safe pressure'tension limits for

&orkstring in given &ellbore and conditions



CT Reel 6eatures

•?ain components of CT reel

– Reel drum

– Reel drive and brake s$stems

– Reel s&ivel and manifold

– (evel&ind assembl$

– .ept% measurement accessories – Tubing lubrication equipment

– Cras% protection frame



Reel .rum

•Reel drum generall$ consists of

– .rum

– A!le

– 6langed connection on a!le• allo&s s&ivel to be connected

– C%ain sprocket on t%e a!le• drives t%e drum

– Second c%ain sprocket on t%e a!le• drives t%e level&ind leadscre&

– 6acilit$ to lock reel drum &%ile being transported



Reel .rive'Brake S$stems

– All reels %$draulicall$ driven

– Control s$stem'motor t$pe var$

– ?ost reels can be po&ered in Oin#%oleO and Oout#%oleO

• onl$ Oout#%oleO mode used

– +ressure in %$draulic drive s$stem controls torque outputof motor

• varies tension on t%e tubing bet&een gooseneck and reel

– Reel brake s$stems air or %$draulicall$ operated – Reel brake s%ould be applied &%en tubing is stationar$



?aintaining Correct Tension

•:nl$ sufficient tension to keep tubing straig%t bet&een reeland in,ector %ead s%ould be applied

•+ressure required to ac%ieve satisfactor$ tension depends on – Amount of tubing on reel

– .istance from gooseneck

•Appl$ing e!cessive tension ma$ result in – +remature failure of %$draulic and drive components

– .amage to tubing



H$dra#Rig HR 35< In,ector Head



H$dra#Rig HR 33< In,ector Head



Ste&art and Stevenson SS 3<<



Ste&art and Stevenson SS 5<<

R T 2 0

M A R I T I M E # Y D R A U L I C S 1 C A N 2 L T D "C A L G A R Y $ A L E R T A $ C A N A D A



.R*C: C%ain Assembl$ # :pen

.R*C: C%ain Assembl$



.R*C: C%ain Assembl$ #

Closed

In,ector Head .R*C: C%ain



In,ector Head .R*C: C%ain

Assembl$•.R*C: c%ain and drive s$stem

– 9nique single c%ain s$stem

– Hinged gripper assembl$

• ensures gripping force isolated from drive c%ain

– C%ain assembl$ aligned &it% tubing a!is• reduces eccentric loading on c%ain'gripper components

– Smoot% operation and long component life

– Dripping force applied t%roug% %inged gripper block • cam rollers forced closed b$ pressure beams

• %$draulic rams control force applied b$ pressure beams

HR03<'08< C%ain Tension



HR03<'08< C%ain Tension

Assembl$



T$pical CT Reel # 6ront Fie&

coiled tubing introduction-part 1

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