8- Completion Considerations

8/9/2019 8- Completion Considerations

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Copyright 2007, , All rights reserved

Completion Equipment

Overview of main equipment and functions


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Copyright 2007, , All rights reserved 2

Completion Equipment (1)

Tubing accessories

Landing Nipples

Locking Mandrels

Flow Couplings Blast Joints

Expansion Nipple


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Completion Equipment (2)

Communication equipment

Sliding Sleeve (Sliding Side Door)

Side Pocket Mandrel


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Landing Nipples

sometimes there is a need to install or to hang-off in the

tubing: a plug to pressure test the tubing

a plug in the tubing below packer to safe-guard the well

a standing valve or plug during workover

pressure gauges to measure bottom hole pressures


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Shear plug

Standing valve

ball

seatshear disk

flow

Pressure to shear disk

Plugs


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Landing Nipples

Is a short pipe, part of tubing string

Has a recess to lock or hang-off a Locking Mandrel

Has a polished bore to receive a seal


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Landing nipple

Locking mandrel

fishing neck

locking dogs

packing

recess

polished

bore

Connection for plug etc.


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threaded connection

seals

sliding sleeve

threaded connection

If not

installed

Equalizing Sub

to equalize pressure across a plug


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No-Go Landing Nipple

Nipple installed at bottom of tubing

Same recess as the normal Landing Nipple but with a

reduced bore

Stops locking mandrels leaving the tubing


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Sealing Cups

Locking Slips

Fishing Neck

Tubing ID (Slip-type) Lock

3 slips mounted on a tapered

body which wedges the slipsoutward to effect a lock against

the tubing wall

designed to hold pressure from

one direction

can hold only limited pressure

differential


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Upper Tubing

Slip Type Lock

Upper Sealing

Element

Straddle

Hole in Tubing

Lower Sealing

Element

Lower Tubing

Slip Type Lock

Application of a Slip Type Lock


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Flow Couplings

A tubular manufactured in 2 to 4 ft lengths with

tubing threads at the ends.

Installed at points in the tubing string where excessiveturbulence is expected.

above and below cross-overs, above and below a landing nipple, SSSV nipple,

etc

Thick wall tubular with full tubing ID Thick wall provides protection against internal erosion

Made of high-grade alloy steel


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Tubing

Landing Nippleor other component

Flowing Coupling

Flowing Coupling

Tubing

Flow Coupling


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Blast Joints

A tubular manufactured in 10 or 20 ft lengths with tubing

threads at the ends.

thick walled tubular

part of the tubing and positioned opposite the perforations in

a dual or multiple completion

Its thick wall gives added protection against erosion from the

jetting action of the producing perforations


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Expansion joint

In expanded position the lock

keys will engage and torque cantransmitted to the tubing joints

underneath to unscrew Anchor

Latch

To be used when extreme

expansion is expected i.e.

steam injection wells

lock key

housing

lock key

seal

inner sleeve


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Sliding (inner)

Sleeve

Seals

Ports

Seals

Inner Ports

OPEN CLOSED

Communication Equipment - Sliding Side Door (SSD)


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PORTSCLOSED

Sliding

Inner Sleeve

PORTSOPEN

SlidingInner Sleeve

Sliding Side Door


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Landing NippleProfile

SSD

Sleeve

Communication Equipment

SSD combined with landing nipple


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SSD applications

Displacing annulus and tubing fluid after completion

Selective production, testing or treating of various zones

Production of multiple zones

Circulation to kill a well or introduce corrosion inhibitors Positioning co-mingling chokes in dual zone flow

Gas lifting ( in the absence of suitable gas lift mandrels)


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Sliding side door

Sleeve has to be moved down

to open communication withannulus depending on type -some move up to open

To open sleeve a shifting tool is

used Some sliding side doors have a

landing nipple as part of device

2 x seal bores (same size) oneabove sleeve and one belowallow for installation of choke /separation sleeve


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Side Pocket Mandrel (SPM)

1. orientation guide to orientate wireline

tool, kick-over tool2. (side) pocket for gas lift valve

3. upper seal bore

4. ports (communication to annulus)5. lower seal bore

6. recess for latching gas lift valve in place

2

3

4

5

6

1


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Gas Lift Valve components and flow path

Fishing neck

Injection gas enters

ports and acts against

the belows to unseat

the ball seal

Gas passes through the

check valve which

prevents reverse flow to

annulus

Upper seal

Lower seal

Bottom latch

Port

bellowslock


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Running GLV in Side Pocket Mandrel (1)

Side Pocket Mandrel

Kick-over tool to run gas lift

valve assembly


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GLV passing through (by-passing mandrel)

Kick-over tool oriented and tripped


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GLV latched in valve pocket

Kick-over tool retrieved

Documents

8- Completion Considerations