Oil & Gas Services. Peter Verkiel. General 1

Transcription

1 Cleaning of Pipelines es the chemical ca way N-SPEC Peter Verkiel General 1

2 Do pipelines need cleaning / optimization? 16 Gas-transport-line Offshore UK Sector General 2

3 Do pipelines need cleaning / optimization? General 3

4 Do pipelines need cleaning / optimization? General 4

5 What is N-SPEC? Oil & Gas Services Chemical PRODUCTS & SERVICES for Cleaning and Optimization of: Gas Pipelines/Facilities Crude Pipelines/Facilities HC Product Pipelines General 5

6 N-SPEC Pipeline & System Cleaning Technology N-SPEC Products: Highly concentrated t liquid id surfactants, t dispersants & emulsifiers: penetrate solids / contamination and reduce the adhesive nature penetrate, permeate, loosen and lift particles away from anomalies carry solids N-SPEC Services: personnel: experienced, skilled, equiped equipment: fit for purpose General 6

7 Cleaning has everything to do with: Improving flow Reducing differential pressure Reducing corrosion / erosion Optimizing usage of inhibitor Optimal efficiency / effectiveness Reliability & Availability Inspection ENERGY SAVINGS General 7

8 When pipeline is clean: Original properties of pipeline are restored, back towards parameters of Engineering & Design Right conditions are created for inspection The Cleaner, The Better! Flow improved Impurities reduction Energy saving Ease of handling General 8

9 Essential INTEGRITY Operator/owner needs to safeguard INTEGRITY Only 1 tool for checking INTEGRITY Intelligent Inspection Tool - ILI MFL Ultrasonic These tools will give an indication regarding the metal loss of the wallthickness of the line! Internal - External General 9

10 Pipeline Cleaning Techniques Mechanical Pigging Gel Cleaning Advanced Chemicals: General 10

11 Mechanical Pigging Rem ovalof.with mechanicalpigs Removal with pigs alone can be effective, however risky and slow Black powder & paraffin can stick and lodge pigs Pigs pack solids into pits, causing errors in ILI General 11

12 Mechanical Pigging Good for removing free liquids Breaks down particles to smaller particles Smaller particles fill anomalies Micro small particles cause downstream nuisance problems General 12

13 Mechanical Pigging Black Powder & Paraffin removal with Pigs alone produces marginal effect if any Before Pigging After Pigging General 13

14 Results of mechanical pigging i General 14

15 Numerous pigruns resulted in hardly any solids/debris removal General 15

16 Advanced Chemicals With pigs Without pigs: pg circulating, flushing Offline OR... On-line General 16

17 Advanced Chemical Cleaning in general General 17

18 General 18

19 Mechanical cleaning General 19

20 Cleaning with advanced chemicals yields clean pipelines p General 20

21 N-SPEC Pipeline Cleaning... ONLINE! General 21

22 Typical Equipment Setup General 22

23 Advanced chemicals remove paraffin & solids After Before View of 3 inch gathering line Before and after treatment with advanced chemicals Treated paraffin remains completely dispersed General 23

24 Czech Republic, 10 km of 8 Crude Oil Line General 24

25 The Netherlands, 82 km of 26 Crude transport t Line General 25

26 Caliper pig contaminated with paraffin, result >> Nihil General 26

27 Biocide Treatment France, 65 km of 18 Brines Line General 27

28 France, 65 km of 18 Brines Line General 28

29 Online!! Hungary, 9 km of 12 Gastransport t Line General 29

30 Ammonium Bicarbonates Germany, 20 km of 10 CO Line General 30

31 Line completely plugged with paraffin 6 years out of service Reopened with N-spec 50 and 120 Rumania, 7.3 km of 6 5/8 Crude trunkline, offshore Black Sea General 31

32 Line completely plugged with paraffin Reopened with N-spec 50 and 120 February 2006 France, 2.5 km of 4 GRE Crude Line General 32

33 Line suffers from a large scaling > 50% Cleaned with N-spec 120+ December 2005 France, 601 m of 4 Saltwater Injection Line General 33

34 Before Cleaning General 34

35 Result after Cleaning General 35

36 N-SPEC Pipeline & Facility Cleaning Technology Experienced and successful All over the world Removal of: Waxes Asphaltines Hydrates Paraffin Scaling Black powder Production robbing solids Sediment General 36

37 Conclusion Advanced Chemical Cleaning leads to: Higher solids removal Less pig runs, longer pig life Optimization of production Improved pipeline safety Max efficiency of corrosion inhibitors Corrosion reduction More reliable Inspection results General 37