Material Challenges for the North Sea-1

8/3/2019 Material Challenges for the North Sea-1

1/21

Material Challenges for North Sea Oil & GasMaterial Challenges for North Sea Oil & GasProductionProduction A Well EngineerA Well Engineers Perspectives Perspective

ITF Advanced Materials WorkshopITF Advanced Materials Workshop Steve Bedford February 21Steve Bedford February 21stst 20082008

Mining Institute of ScotlandMining Institute of Scotland

IOMIOM33 Petroleum and Drilling Engineering DivisionPetroleum and Drilling Engineering Division


2/21

Material Challenges for North Sea Oil and Gas ProductionMaterial Challenges for North Sea Oil and Gas Production AgendaAgenda Business EnvironmentBusiness Environment

Operating EnvironmentOperating Environment

Opportunities for Advanced Materials ?Opportunities for Advanced Materials ?

ConclusionsConclusions


3/21

Business EnvironmentBusiness Environment

Global Energy Demand: 1970 to 2030Global Energy Demand: 1970 to 2030


4/21


UK Energy Demand and North Sea PrizeUK Energy Demand and North Sea Prize

99% of UK99% of UKtransporttransport

requires oilrequires oil

UKCS couldUKCS coulddeliverdeliver

another 27another 27

bn boebn boe

PotentialPotential

investmentinvestment

ofof 300bn300bn

UK Electricity GenerationUK Electricity Generation

Source UK Oil & GasSource UK Oil & Gas


5/21

Business EnvironmentBusiness Environment Costs and ReturnsCosts and Returns

High global demand forHigh global demand for

oilfield equipment,oilfield equipment,

people and servicespeople and services

Offshore supply costsOffshore supply costs

up c68% on 2000up c68% on 2000

Production sharingProduction sharing

agreements andagreements and

windfall taxeswindfall taxes

Trend to divest matureTrend to divest mature

fields/acreage to newfields/acreage to new

entrantsentrants


6/21


Increasing Public ConcernIncreasing Public Concern


7/21

Material Challenges for North Sea Oil and Gas ProductionMaterial Challenges for North Sea Oil and Gas Production

AgendaAgenda




8/21


Basins and InfrastructureBasins and Infrastructure


9/21


Onshore Oilfield: Kimmeridge Bay, DorsetOnshore Oilfield: Kimmeridge Bay, Dorset First Dorset explorationFirst Dorset exploration

well drilled in 1934well drilled in 1934

Field on stream in 1959Field on stream in 1959

Producing from theProducing from the

naturally fracturednaturally fractured

Cornbrash LimestoneCornbrash Limestone

Production rateProduction rate

declined from 500 todeclined from 500 to

current 80 bbl/daycurrent 80 bbl/day

Beam pumpedBeam pumped

Sweet, light crude withSweet, light crude with

very little gasvery little gas


10/21


Southern North Sea GasSouthern North Sea Gas

Typically sandstone reservoirs, often hydraulically fractured toTypically sandstone reservoirs, often hydraulically fractured to stimulate ratesstimulate rates

First fields on stream in the mid 1960First fields on stream in the mid 1960ss

As the larger fields were developed, smaller fields have been deAs the larger fields were developed, smaller fields have been developed withveloped withsubsea wells and unmanned small platforms. Move towards multi lasubsea wells and unmanned small platforms. Move towards multi lateralteral

wells, under balanced drilling and dewells, under balanced drilling and de--liquification technologiesliquification technologies


11/21


Large Integrated North Sea Oil PlatformsLarge Integrated North Sea Oil Platforms

Typically sandstone reservoirs with highly prolific wells and waTypically sandstone reservoirs with highly prolific wells and water floodter flood

Platforms typically accommodate 150 to 250 people with facilitiePlatforms typically accommodate 150 to 250 people with facilities for: drilling,s for: drilling,

primary processing, export and life supportprimary processing, export and life support As fields age upgrades typically required to reduce discharges,As fields age upgrades typically required to reduce discharges, artificially liftartificially lift

wells and access adjacent smaller fields e.g. subsea wellswells and access adjacent smaller fields e.g. subsea wells


12/21


CRINE (Cost Reduction In the New Era)CRINE (Cost Reduction In the New Era)

Novel designs toNovel designs to

reduce developmentreduce development

costs and therebycosts and therebyaccess smalleraccess smaller

ReservoirsReservoirs

Example is the HardingExample is the Harding

Field where a jack upField where a jack upon a concrete storageon a concrete storage

base is used forbase is used for

drilling, production,drilling, production,

storage and export.storage and export.Once the Field isOnce the Field is

exhausted the facilityexhausted the facility

will be moved to thewill be moved to the

next fieldnext field


13/21


Post Piper Alpha FacilitiesPost Piper Alpha Facilities

Move to separateMove to separate

living accommodationliving accommodation

from process andfrom process and

drilling facilitiesdrilling facilities

Example is the BruceExample is the Bruce

Platform with threePlatform with three

bridge linkedbridge linkedstructures:structures:

Quarters/Utilities:Quarters/Utilities:

Drilling/Process andDrilling/Process and

Export. Subsea wellsExport. Subsea wellstied back to thetied back to the

Drilling/ProcessDrilling/Process

platformplatform


14/21


Subsea DevelopmentsSubsea Developments

Increasing subsea well count in the North Sea to reduce capitalIncreasing subsea well count in the North Sea to reduce capital costscosts

Use of floating production systems and mobile drilling rigs, parUse of floating production systems and mobile drilling rigs, particularly inticularly in

deep water areas e.g. Foinaven and Scheihallion Fields in 550m odeep water areas e.g. Foinaven and Scheihallion Fields in 550m of water inf water in

the North East Atlantic.the North East Atlantic.


15/21


Supply Boat: Northern North Sea January 2007Supply Boat: Northern North Sea January 2007


16/21

Material Challenges for North Sea Oil and Gas ProductionMaterial Challenges for North Sea Oil and Gas Production AgendaAgenda Business EnvironmentBusiness Environment




17/21


Corrosion / ErosionCorrosion / Erosion

Many miles of pipework in placeMany miles of pipework in place surface, subsea and downholesurface, subsea and downhole

Corrosion/erosion may not be an issue until conditions change e.Corrosion/erosion may not be an issue until conditions change e.g. CO2g. CO2

content increasescontent increases

Internal and external corrosion a major issueInternal and external corrosion a major issue

Coatings/materials to prevent or repair corrosion ?Coatings/materials to prevent or repair corrosion ?

IntelligentIntelligent materials to provide information or react to change in conditimaterials to provide information or react to change in condition ?on ?


18/21


Material DepositionMaterial Deposition

Organic scale, hydrocarbon deposits, sand, rust are majorOrganic scale, hydrocarbon deposits, sand, rust are major

production issuesproduction issues

Non stickNon stick coatings ?coatings ? Materials that destroy unwanted deposits ?Materials that destroy unwanted deposits ?


19/21


PeoplePeople

Protective equipment ?Protective equipment ?

Location devices ?Location devices ?

Health monitoring ?Health monitoring ?

Lighter / stronger tools ?Lighter / stronger tools ?

Lighting ?Lighting ?


20/21

Material Challenges for North Sea Oil and Gas ProductionMaterial Challenges for North Sea Oil and Gas Production

ConclusionsConclusions

Increasing demand for Oil and Gas with significantIncreasing demand for Oil and Gas with significant

reserves remaining in the UK and multiplereserves remaining in the UK and multiple

opportunities to export services/equipmentopportunities to export services/equipment

internationallyinternationally

Pressure on margins, mature facilities, challengingPressure on margins, mature facilities, challenginggeology and the emphasis on health, safety andgeology and the emphasis on health, safety and

environmental protection are driving operators toenvironmental protection are driving operators to

look for alternative materials in the UKCSlook for alternative materials in the UKCS

Many possibilities for advanced materialsMany possibilities for advanced materials

Mi i I tit t f S tl dMi i I tit t f S tl d


21/21

Material Challenges for North Sea Oil & Gas ProductionMaterial Challenges for North Sea Oil & Gas Production A Well EngineerA Well Engineers Perspectives Perspective ITF Advanced Materials WorkshopITF Advanced Materials Workshop Steve Bedford February 21Steve Bedford February 21stst 20082008

Mining Institute of ScotlandMining Institute of Scotland

IOMIOM33 Petroleum and Drilling Engineering DivisionPetroleum and Drilling Engineering Division

Documents

Material Challenges for the North Sea-1