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PORTABLE TEMPORARY PIG LAUNCHER - PowerPoint PPT Presentation


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PORTABLE TEMPORARY PIG LAUNCHER. thomas cornthwaite inpipe products limited. THE SITUATION. PTPL. portable temporary pig launcher – inpipe products more flexible and cost effective temporary pig launching. Pipeline design and technology has not always been able to keep up with demand.

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Presentation Transcript
slide1

PORTABLE TEMPORARY

PIG LAUNCHER

thomas cornthwaite

inpipe products limited

slide3

PTPL

portable temporary pig launcher – inpipe products

more flexible and cost effective temporary pig launching

slide4

Pipeline design and technology has not always been able to keep up with demand.

Tight timescales determined by market demands have in many cases caused consideration to pipeline pigging to be an afterthought.

Also with the process of pipeline pigging is still somewhat of a black art that many are not entirely familiar with, the general quality of pipeline design for pigging can at times lack the forward thinking required.

INTRODUCTION

slide5

THE PROBLEM

  • permanent launchers are,
  • costly
  • very specific to purpose
  • difficult to add to live lines
  • ideal for regular use
slide6

A high pressure plug is not ideal for launching:

  • it has no reducer
  • it has no door
  • there is potential for internal damage
  • it is difficult to vent and drain
  • but it is cost effective

THE PROBLEM

slide7

THE SOLUTION: PTPL

  • features of the PTPL
  • pressure based fixing
  • re-usable launcher
  • cost effective
  • fast installation
  • adaptable product
  • standardised along pipeline
slide9

POSI-SEAL ASSEMBLY

pressure gauge

retaining flange

grit lined tyre – for gripping

ribbed tyre – for sealing

sealing flange

slide10

pig passage

indicator

posi-seal assembly

reducer

door (blind flange)

pig holding area

drain line out

kicker line in

ASSEMBLY

slide11

Design to pipe outside diameter

+ More useful along pipeline

+ Standardisation of components

+ More likely to be reliable

+ More cost effective

BENEFITS

slide12

+ greater tolerance range

+ better on corroded/damaged pipes

+ quick and simple to fit

TYRE BENEFITS

slide13

MAINTENANCE

+ access to either end for cleaning

+ closure door optional

+ ease of pre-loading

slide15

CASE STUDY

PTPL developed for pigging a new line in the Norwegian North Sea

slide16

SPECIFICS

situation of temporary pig launcher below platform

slide17

TESTING

Testing to prove external posi-seal tyre, tested successfully to 25 bar

slide18

PTPL specifically supplied with:

  • clamp
  • pair of safety harnesses
  • water pump for energising
  • pair of ribbed tyres
  • pair of grit lined tyres

pigging on construction of new norwegian line successfully completed using ptpl

slide19

SUITABILITY

Permanent launcher

+ day to day use

+ regular pigging

+ hydrostatic testing

PTPL

+ occasional pigging

+ awkward circumstances

+ pigging during pipeline construction

slide20

Provision to avoid tyre slippage

  • Not a replacement for a permanent launcher
  • Whilst useful on corroded pipes, caution to breakage
  • Not to be pigged with gas/air

SUITABILITY

slide21

PTPL should not be used to receive in single, heavy runs

  • A strategy using low efficiency pigs should be used if this could be an issue

ACCUMULATION

slide22

25 bar maximum pressure

  • Access consideration for cranes and loading
  • Consideration in case of being overloaded
  • Suitability for use in other applications
  • Incorporation of safety equipment

OTHER CONSIDERATIONS

slide23

TECHNOLOGY APPLICATIONS

  • External tyre system benefits pipeline maintenance
  • Standardisation of parts lowers costs
  • Larger tolerance band when using tyres.
slide24

TYRE APPLICATIONS

+ isolation

+ repair

+ testing

+ plugging

+ standardised design

+ cost saving

+ reliability

slide25

+ launcher adaptability

+ blank stations

+ compact launching

+ offline modification

+ multiple pig/sphere launching

ADAPTABILITY

slide26

SUMMARY

customer brief leads to product with many derived benefits

the ptpl provides an alternative solution to pig launching and receiving