surfactant injection projects - field cases - · pdf fileresearch and develop surfactants...
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SURFACTANT INJECTION SURFACTANT INJECTION PROJECTS PROJECTS -- FIELD CASESFIELD CASES
Christie Lee / Paul BergerChristie Lee / Paul BergerOil Chem Technologies, Inc.Oil Chem Technologies, Inc.
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Research and develop surfactants exclusively Research and develop surfactants exclusively for EOR since 1995 for EOR since 1995 Worked closely with the operators to custom Worked closely with the operators to custom design and optimize surfactants/processes design and optimize surfactants/processes based on the need of each projectbased on the need of each projectField proven products and processes Field proven products and processes –– more more than than 50 million pounds50 million pounds of surfactants of surfactants successfully injected all over the world. successfully injected all over the world. Continuously improve and develop products / Continuously improve and develop products / processes based on field results and aimed processes based on field results and aimed for the futurefor the futureNo. 6 fastest growing company in energy in No. 6 fastest growing company in energy in USAUSA
OIL CHEM TECHNOLOGIESOIL CHEM TECHNOLOGIES
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Injection fluid
Injection Pump
ARE THERE CHEMICAL EOR ARE THERE CHEMICAL EOR PROJECTS?PROJECTS?
Injection well
Producing well
Oil
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asas ORS-41(4) *, SS B1688, FI-100
ORS-41HF (2), ORS-62, ORS-97, ORS-46HF,ORS-162, SS-7593, SS-B1688(2),ORS-97HF, ORS-57HF,ORS-48HF
ORS-57HFORS-41HF
ORSORS--41HF, SS 41HF, SS B1688,SSB1688,SS--890890
INJECTED, ONINJECTED, ON--GOING & APPROVED PROJECTS GOING & APPROVED PROJECTS
SS 7SS 7--5757
SS B8020SS B8020
SSSS--6046, 6046, SS GI1416SS GI1416
SS 6-72
SS B2080, SS B5050, ORS-46L, ORS-97HF, ORS-41HF,SS-1688,
ORS-41, SS-6566, ORS-57
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PRESENTATION OUTLINEPRESENTATION OUTLINE
Chemical EOR Chemical EOR –– PastPastChemical EOR Chemical EOR –– PresentPresent•• Oil Chem field experience to shareOil Chem field experience to share
Chemical EOR Chemical EOR –– Problems/solutionProblems/solutionConclusionsConclusions
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PRESENTATION OUTLINEPRESENTATION OUTLINE
Chemical EOR Chemical EOR –– PastPastChemical EOR Chemical EOR –– PresentPresent•• Oil Chem field experience to shareOil Chem field experience to share
Chemical EOR Chemical EOR –– Problems/solutionProblems/solutionConclusionsConclusions
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EOR IN EARLY 1980’SEOR IN EARLY 1980’S
NoneNone0.22% 0.22% polyacrylamidepolyacrylamide0.1% 0.1% xanthanxanthanPolymerPolymer
1919--21% ROIP21% ROIP15% RIOP15% RIOP68% RIOP68% RIOPRecoveryRecovery
0.30.30.1 0.1 0.30.3Pore Pore VolumeVolume
0.6% 0.6% hexanolhexanol5% 5% isoiso--butanolbutanol-- -- --CoCo--solventsolvent
2.5%2.5%0.6%0.6%96% connate 96% connate salinitysalinitySaltSalt
10%10%3%3%2 surfactants 2 surfactants 2.3%2.3%
Surfactant Surfactant Conc.Conc.
Marathon, Marathon, 19831983ConocoConoco, 1981, 1981Exxon, 1983Exxon, 1983CompanyCompany
RobinsonRobinsonBig MuddyBig MuddyLoudonLoudonFieldField
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EOR BY CHEMICAL FLOODEOR BY CHEMICAL FLOOD
Never Never reallyreally took off in the past took off in the past -- Reasons?Reasons?Sensitivity to oil price Sensitivity to oil price Large upLarge up--front investmentfront investmentUnpredictable return on investment Unpredictable return on investment High surfactant concentrationHigh surfactant concentrationSalinity optimization requiredSalinity optimization requiredOptimum salinity shift in the formationOptimum salinity shift in the formationPotential emulsion blockPotential emulsion blockEconomic feasibilityEconomic feasibility
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However, However,
Extensive lab evaluations support the Extensive lab evaluations support the feasibility of chemical floodingfeasibility of chemical floodingField data proves chemical flooding is Field data proves chemical flooding is an effective way to recover residual oil an effective way to recover residual oil New chemicals and processes open the New chemicals and processes open the door for new opportunities door for new opportunities
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COST OF CHEMICALSCOST OF CHEMICALS
$60$60--$140/bbl$140/bbl~ $12/bbl~ $12/bblCrude OilCrude Oil
$2 $2 -- $10$10$8 $8 -- > $15 > $15 Incr. Incr. Cost/bblCost/bbl
$0.30 $0.30 –– $0.60/lb$0.60/lb$0.12/lb$0.12/lbAlkaliAlkali22
$0.80$0.80--$1.5/lb$1.5/lb$0.40$0.40--$0.60/lb$0.60/lbSurfactantSurfactant11
$1 $1 –– $1.8/lb$1.8/lb$3$3--4/lb4/lbPolymerPolymer
2008 2008 (Oil (Oil Chem’sChem’ssurfactant /process)surfactant /process)
1980 1980 MicellarMicellar
1 1 Surfactant concentration has been reduced by 10 times as compareSurfactant concentration has been reduced by 10 times as compared tod to1980’s1980’s
22 Alkali has been reduced or in some cases is not needed at allAlkali has been reduced or in some cases is not needed at all
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PRESENTATION OUTLINEPRESENTATION OUTLINE
Chemical EOR Chemical EOR –– PastPastChemical EOR Chemical EOR –– PresentPresent•• Oil Chem field experience to shareOil Chem field experience to share
Chemical EOR Chemical EOR –– Problems/solutionProblems/solutionConclusionsConclusions
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RELATIONSHIP BETWEEN CAPILLARY RELATIONSHIP BETWEEN CAPILLARY NUMBER AND OIL RECOVERYNUMBER AND OIL RECOVERY
Chatzis and Morrow, SPEJ, (1994) 561.Chatzis and Morrow, SPEJ, (1994) 561.
0
20
40
60
80
100
1.E-06 1.E-05 1.E-04 1.E-03 1.E-02
Capillary Number
% O
il R
ecov
ered
Nc = ν µ /σ cosθ
Nc =Nc = Capillary NumberCapillary Number
νν = Darcy Velocity= Darcy Velocity
µµ = Viscosity= Viscosity
σσ= Interfacial Tension= Interfacial Tension
Θ=wetting angle
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CHINA EOR PROJECTSCHINA EOR PROJECTS
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DAQING ASP PROJECTDAQING ASP PROJECT
Over 100 surfactants were evaluatedOver 100 surfactants were evaluatedin the lab during 1992in the lab during 1992--94 including:94 including:ORSORS--4141Petroleum SulfonatesPetroleum SulfonatesCarboxylatesCarboxylatesLignin Sulfonate/Petroleum Sulfonates Lignin Sulfonate/Petroleum Sulfonates Microbiological Microbiological
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1995 1995 -- INITIAL FIELD INITIAL FIELD EVALUATIONEVALUATION
Daqing No.4 Field Daqing No.4 Field -- Oil Chem Oil Chem Technologies’ ORSTechnologies’ ORS--4141Daqing No.1 Field Daqing No.1 Field –– another US another US company’s Petroleum Sulfonatecompany’s Petroleum Sulfonate
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19961996--1998:1998: ENLARGED FIELD ENLARGED FIELD EVALUATIONEVALUATION
ORSORS--41 was chosen as the only 41 was chosen as the only surfactant for enlarged field flood. surfactant for enlarged field flood. More than 7000 MT of the ORSMore than 7000 MT of the ORS--41 41 was injected in several field blocks was injected in several field blocks and this confirmed the viability of and this confirmed the viability of the ASP process. Cost was $3.74/bbl the ASP process. Cost was $3.74/bbl of incremental oilof incremental oil
SPE 36748, 57288, 71061, 71491, 71492SPE 36748, 57288, 71061, 71491, 71492
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0
5
10
15
20
1 2 3 4Well Number
Oil
Rec
over
yTo
ns/D
ay
SPE 36748 (1996)SPE 36748 (1996)
BEFORE ASPBEFORE ASPAFTER ASPAFTER ASP
ASP PROJECT USING ORS-41TM
IN DAQING, CHINA
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CANADA EOR PROJECTSCANADA EOR PROJECTS
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HUSKY TABER ASP PROJECTHUSKY TABER ASP PROJECT
Masterenergy.com
ORS-97HF
0
2
4
6
8
10
12
2003
2004
2005
2006
2007
2008
% O
il C
ut
0
500
1000
1500
2000
2500bbls oil/day
Oil CutOil Production
Begin ASP 6/2006
4/20082087 bbls/day
1.7% oil cut
300 bbls/day
4/200810.2% oil cut
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CANADA SP PROJECTCANADA SP PROJECT
Heavy oil fieldHeavy oil fieldUnder polymer flood Under polymer flood Added 0.1% surfactant with polymer Added 0.1% surfactant with polymer in November, 2006in November, 2006~ 3 months later, the water cut ~ 3 months later, the water cut reduced from 97% to 58%reduced from 97% to 58%
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USA EOR PROJECTSUSA EOR PROJECTS
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REX ENERGY ASP PROJECTSREX ENERGY ASP PROJECTS
The Lawrence Field The Lawrence Field -- estimated one billion estimated one billion barrels of original oilbarrels of original oil--inin--place place The Cypress (Mississippian) and the The Cypress (Mississippian) and the Bridgeport (Pennsylvanian) sandstones Bridgeport (Pennsylvanian) sandstones are the major producing horizons in the are the major producing horizons in the field. field. Produced more than 400 million barrels Produced more than 400 million barrels (40%) of oil since its discovery in 1906. (40%) of oil since its discovery in 1906.
WWW.REXENERGYGROUP.COMWWW.REXENERGYGROUP.COM
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REX ENERGY ASP PROJECTREX ENERGY ASP PROJECT
During 2007, core floods resulted in an oil During 2007, core floods resulted in an oil recovery rate of 21% OOIP for Cypress, recovery rate of 21% OOIP for Cypress, and 24% OOIP for Bridgeportand 24% OOIP for BridgeportIn 2006 and 2007, 18 wells drilled in two In 2006 and 2007, 18 wells drilled in two pilot areaspilot areas20082008-- pilot ASP injection started pilot ASP injection started Bridgeport Sandstone is demonstrating an Bridgeport Sandstone is demonstrating an initial response to the ASP chemical initial response to the ASP chemical injection as indicated by an increase in the injection as indicated by an increase in the oil cut ratio in the pilot wellsoil cut ratio in the pilot wells
WWW.REXENERGYGROUP.COMWWW.REXENERGYGROUP.COM
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REX ENERGY ASP PROJECTSREX ENERGY ASP PROJECTS
Cypress Sandstone ASP pilot is Cypress Sandstone ASP pilot is continuing to demonstrate a response continuing to demonstrate a response to the ASP chemical injectionto the ASP chemical injectionPlans to implement a broad ASP flood Plans to implement a broad ASP flood program within the 13,500 net acres of program within the 13,500 net acres of the field commencing in 2009 based on the field commencing in 2009 based on successful pilot runs in either field. successful pilot runs in either field.
WWW.REXENERGYGROUP.COMWWW.REXENERGYGROUP.COM
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TANNER FIELD, WYOMINGTANNER FIELD, WYOMINGASP PROJECTASP PROJECT
Crude oil : 21Crude oil : 21oo APIAPIBottom Hole Temperature: 175Bottom Hole Temperature: 175ooFFDepth: 8915 ftDepth: 8915 ftThickness: 25 ft Thickness: 25 ft Porosity: 20%Porosity: 20%Permeability: 200 mDPermeability: 200 mD
SPE 100004SPE 100004
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SPE 100004SPE 100004
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SHOSHO--VELVEL--TUM FIELDTUM FIELDASP PROJECTASP PROJECT
On production > 40 yrs, extensive water flood, On production > 40 yrs, extensive water flood, produced 4 bbl/dayproduced 4 bbl/dayASP started on 2/98, using NaASP started on 2/98, using Na22COCO33 and and ORSORS--6262Total incremental oil > 10,444 bbl in 1.3 yearsTotal incremental oil > 10,444 bbl in 1.3 years
(A 500% increase in production)(A 500% increase in production)
SPE 84904SPE 84904
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OIL SATURATION AFTER OIL SATURATION AFTER ASP INJECTIONASP INJECTION
5101520253035
0.00 0.10 0.20 0.30 0.40
(SURFACTANT CONC, %)(ASP SLUG SIZE)
So, %
PV
SPE 84904SPE 84904
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BIG SINKING FIELD, KYBIG SINKING FIELD, KYSurfactant Assisted Water FloodSurfactant Assisted Water Flood
100 Million barrels oil100 Million barrels oil--inin--place place Depth 1150 feet Depth 1150 feet BHT 30BHT 30ooCCThickness 25 feetThickness 25 feetPermeability 45 mDPermeability 45 mDHigh water cuts and very low High water cuts and very low injectivityinjectivity
SPE 89384SPE 89384
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BIG SINKING, KENTUCKYBIG SINKING, KENTUCKYSurfactant Assisted Water FloodSurfactant Assisted Water Flood
Chemical injected:Chemical injected:0.8% NaOH + 0.1% ORS0.8% NaOH + 0.1% ORS--162HF162HFProblems overcome:Problems overcome:
IFT lowered from 23.6 to 0.001 mN/mIFT lowered from 23.6 to 0.001 mN/mPoor water injectivityPoor water injectivityHigh water cutsHigh water cuts220% increase in injectivity220% increase in injectivityLarge field trial scheduled to begin in Large field trial scheduled to begin in 12/200712/2007
SPE 89384SPE 89384
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SOUTH AMERICA PROJECTSSOUTH AMERICA PROJECTS
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ARGENTINA SP PROJECTARGENTINA SP PROJECT
SP injection using SSSP injection using SS--1688, injection 1688, injection started in September, 2007 started in September, 2007 Initial surfactant Injection Initial surfactant Injection –– 1000 1000 ppmppm, , tapered down to 250 tapered down to 250 ppmppm after 6 months after 6 months No alkali, no salinity optimization, no coNo alkali, no salinity optimization, no co--solvent is used solvent is used Oil production Increased ~50% and ~80% Oil production Increased ~50% and ~80% after 4 months for 2 blocksafter 4 months for 2 blocks
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SOUTHEAST ASIASOUTHEAST ASIA
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OFFSHORE ALKALINE OFFSHORE ALKALINE SURFACTANT (AS) PROJECTSURFACTANT (AS) PROJECT
Sea water is softened on the platformSea water is softened on the platform
Single well test successfully performed
using SS 6-72LV injected with NaOH
Pilot project will proceed
SPE 100943, 109033SPE 100943, 109033
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SPE 109033SPE 109033
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PROJECTS SUMMARYPROJECTS SUMMARY
Only selected, published data has been Only selected, published data has been presented to maintain the confidentiality presented to maintain the confidentiality of the producersof the producersMore than 50 million pounds of Oil More than 50 million pounds of Oil Chem’sChem’ssurfactants have been successfully surfactants have been successfully injectedinjectedEquivalent to ~ 143 million bbl of the Equivalent to ~ 143 million bbl of the injection fluid at 0.1% surfactantinjection fluid at 0.1% surfactantProcesses included ASP, SP, S and heavy Processes included ASP, SP, S and heavy oil recoveryoil recovery
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PRESENTATION OUTLINEPRESENTATION OUTLINE
Chemical EOR Chemical EOR –– PastPastChemical EOR Chemical EOR –– PresentPresent•• Oil Chem field experience to shareOil Chem field experience to share
Chemical EOR Chemical EOR –– Problems/solutionProblems/solutionConclusionsConclusions
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EXPERIENCE GATHERED EXPERIENCE GATHERED FROM THE FIELD PROJECTSFROM THE FIELD PROJECTS
SuccessSuccessProblems encounteredProblems encounteredSolutionsSolutionsImprovementImprovement
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S. M. S. M. FarougFaroug Ali, Univ. Of Calgary:Ali, Univ. Of Calgary:
Some of the oil recovery methods suffer fromlimitations not easily understood from unscaled lab experiments – field failures were the only way to understand themIn many cases, reservoir description /heterogeneity is the problemEconomics are the key to large scale application of even tested processes
WHY EOR HAS NOT LIVED UP TO EXPECTION?
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
cost, poor polymer cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
TDS, hardnessTDS, hardnessWater qualityWater quality
poor propagationpoor propagationAdsorptionAdsorption
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
cost, poor polymer cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
TDS, hardnessTDS, hardnessWater qualityWater quality
poor propagationpoor propagationAdsorptionAdsorption
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
proper formulation, minimize proper formulation, minimize number of components, local number of components, local manufacturingmanufacturing
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
AA
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
CoCo--surf. surf.
0.2 0.2 –– 44%%
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
CoCo--surf. surf.
0.2 0.2 –– 44%%NaCl NaCl
0.50.5--5%5%
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
~ $10 ~ $10 -- $30/bbl $30/bbl Incremental OilIncremental OilS1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
CoCo--surf. surf.
0.2 0.2 –– 44%%NaCl NaCl
0.50.5--5%5%PP
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
~ $8~ $8--20/bbl 20/bbl Incremental OilIncremental Oil
AA
Oil Chem Typical ASP FloodOil Chem Typical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
CoCo--surf. surf.
0.2 0.2 –– 44%%NaCl NaCl
0.50.5--5%5%PP
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
~ $8~ $8--20/bbl 20/bbl Incremental OilIncremental Oil
AA S1 S1
0.1 0.1 –– 0.30.3%%
Oil Chem Typical ASP FloodOil Chem Typical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
CoCo--surf. surf.
0.2 0.2 –– 44%%NaCl NaCl
0.50.5--5%5%PP
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PROCESS COMPARISONSPROCESS COMPARISONSTypical ASP Typical ASP vsvs Oil Chem ASPOil Chem ASP
Typical ASP FloodTypical ASP Flood
~ $8~ $8--20/bbl 20/bbl Incremental OilIncremental Oil
PPAA S1 S1
0.2 0.2 –– 22%%
~ $4 ~ $4 -- $10/bbl Incremental Oil$10/bbl Incremental Oil
Oil Chem Typical ASP FloodOil Chem Typical ASP Flood
S1 S1
0.2 0.2 –– 22%%AA S2 S2
0.2 0.2 –– 22%%
CoCo--surf. surf.
0.2 0.2 –– 44%%NaCl NaCl
0.50.5--5%5%PP
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
surfactants do not require salinity surfactants do not require salinity optimizationoptimization
Cost, poor polymer Cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
TDS, hardnessTDS, hardnessWater qualityWater quality
poor propagationpoor propagationAdsorptionAdsorption
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
proper formulation, minimize proper formulation, minimize number of components, local number of components, local manufacturingmanufacturing
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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EFFECT OF SALT ON VISCOSITYEFFECT OF SALT ON VISCOSITY
200 cps
70cps
20cps
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
surfactants do not require salinity surfactants do not require salinity optimizationoptimization
Cost, poor polymer Cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
TDS, hardnessTDS, hardnessWater qualityWater quality
poor propagationpoor propagationAdsorptionAdsorption
organic alkali, SP, surfactant organic alkali, SP, surfactant requires no salinity optimizationrequires no salinity optimization
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
proper formulation, minimize proper formulation, minimize number of components, local number of components, local manufacturingmanufacturing
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
surfactants do not require salinity surfactants do not require salinity optimizationoptimization
cost, poor polymer cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
organic alkali, SPorganic alkali, SPTDS, hardnessTDS, hardnessWater qualityWater quality
poor propagationpoor propagationAdsorptionAdsorption
organic alkali, SP, surfactant organic alkali, SP, surfactant requires no salinity optimizationrequires no salinity optimization
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
proper formulation, minimize proper formulation, minimize number of components, local number of components, local manufacturingmanufacturing
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
surfactants do not require salinity surfactants do not require salinity optimizationoptimization
cost, poor polymer cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
low surfactant concentration, low surfactant concentration, demulsifiersdemulsifiers
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
organic alkali, SPorganic alkali, SPTDS, hardnessTDS, hardnessWater qualityWater quality
poor propagationpoor propagationAdsorptionAdsorption
organic alkali, SP, surfactant organic alkali, SP, surfactant requires no salinity optimizationrequires no salinity optimization
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
proper formulation, minimize proper formulation, minimize number of components, local number of components, local manufacturingmanufacturing
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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CONDITIONS ENCOUNTERED CONDITIONS ENCOUNTERED AND SOLUTIONSAND SOLUTIONS
surfactants do not require salinity surfactants do not require salinity optimizationoptimization
cost, poor polymer cost, poor polymer performance, corrosionperformance, corrosion
Salinity Salinity optimizationoptimization
low surfactant concentration, low surfactant concentration, demulsifiersdemulsifiers
emulsion block, water emulsion block, water qualityquality
EmulsionEmulsion
organic alkali, SPorganic alkali, SPTDS, hardnessTDS, hardnessWater qualityWater quality
low adsorption surfactantlow adsorption surfactantpoor propagationpoor propagationAdsorptionAdsorption
organic alkali, SP, surfactant organic alkali, SP, surfactant requires no salinity optimizationrequires no salinity optimization
alkali, alkali, NaClNaCl, CaCO, CaCO33, , MgCOMgCO33, NaSiO, NaSiO44
Corrosion & ScaleCorrosion & Scale
proper formulation, minimize proper formulation, minimize number of components, local number of components, local manufacturingmanufacturing
high viscosity, multiple high viscosity, multiple chemicals, extra surface chemicals, extra surface equipment, shipping, equipment, shipping, storage, taxstorage, tax
Handling & Handling & LogisticsLogistics
SolutionSolutionConditionsConditions
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SP FLOODS SP FLOODS ––ADVANTAGES / PROBLEMSADVANTAGES / PROBLEMS
AdvantagesAdvantages•• No alkaliNo alkali•• No water softeningNo water softening•• No salinity optimizationNo salinity optimization•• Better polymer performanceBetter polymer performance
ProblemsProblems•• High adsorptionHigh adsorption
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LOW ADSORPTION SURFACTANTS LOW ADSORPTION SURFACTANTS (Patent Pending)(Patent Pending)
0.1 0.1 –– 0.80.80.1 0.1 –– 0.80.8New Low Adsorption New Low Adsorption SurfactantsSurfactants
> 3> 31.01.0Amphoteric Amphoteric SurfactantsSurfactants
1.01.01.01.0Anionic SurfactantsAnionic Surfactants
Sandstone Sandstone Avg., mg/gAvg., mg/g
Carbonates Carbonates Avg., mg/gAvg., mg/g
No Salinity Optimization Is Required!No Salinity Optimization Is Required!
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FIELD PROVEN CHEMICALS FIELD PROVEN CHEMICALS --ITERATION PROCESSITERATION PROCESS
Lab Chemical Synthesis/
Formulation
Core Flood, Fluid Evaluation, Injection
Design, etc.
Field Pilot TestWhole Field Flood
IterationIteration
IterationIteration
IterationIterationIterationIteration
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HEAVY OIL RECOVERYHEAVY OIL RECOVERY
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HEAVY OIL RECOVERYHEAVY OIL RECOVERY
COCO22
SteamSteamSAGDSAGD
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HEAVY OIL RECOVERY HEAVY OIL RECOVERY --NEW DEVELOPMENTNEW DEVELOPMENT
Reduce heavy oil viscosity by Reduce heavy oil viscosity by creating water external pseudocreating water external pseudo--emulsionemulsionReduce the polymer viscosity Reduce the polymer viscosity required by reducing the crude oil required by reducing the crude oil viscosityviscosityReduce the energy provided by Reduce the energy provided by steam to mobilize the oilsteam to mobilize the oil
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ControlControl 0.1% SF0.1% SF--100100SurfactantSurfactant
HEAVY OIL PSEUDOHEAVY OIL PSEUDO--EMULSIONEMULSION
Oil Viscosity < Oil Viscosity < 200 cps200 cps
Oil Viscosity = Oil Viscosity = 6,700 cps6,700 cps
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HEAVY OIL PROJECT HEAVY OIL PROJECT (70(70ooC, 12 API)C, 12 API)
0
2
4
6
8
10
12
14
Before After
MT/
day OIL
WATER
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PRESENTATION OUTLINEPRESENTATION OUTLINE
Chemical EOR Chemical EOR –– PastPastChemical EOR Chemical EOR –– PresentPresent•• Oil Chem field experience to shareOil Chem field experience to share
Chemical EOR Chemical EOR –– Problems/solutionProblems/solutionConclusionsConclusions
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CONCLUSIONSCONCLUSIONSWorldwide “unWorldwide “un--recoverable” oil ~ two trillion recoverable” oil ~ two trillion bbl oilbbl oilMostly in depleted reservoirs or those Mostly in depleted reservoirs or those nearing depletionnearing depletionOil reserves and reservoir characteristics Oil reserves and reservoir characteristics have already been confirmedhave already been confirmedConventional Oil Recover Factor <33% Conventional Oil Recover Factor <33% Today’s demand for oil makes chemical EOR Today’s demand for oil makes chemical EOR an effective and economic means of an effective and economic means of increasing the oil supplyincreasing the oil supply
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CONCLUSIONSCONCLUSIONS
Recent successes in the field have confirmed Recent successes in the field have confirmed that chemical EOR is a viable techniquethat chemical EOR is a viable techniqueNew chemicals and processes have been New chemicals and processes have been developed to increase the effectiveness and developed to increase the effectiveness and the economics of EOR, including some the economics of EOR, including some extreme reservoir conditionsextreme reservoir conditions
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CONCLUSIONSCONCLUSIONSHow To Choose Chemicals On Your EOR How To Choose Chemicals On Your EOR
Projects? Be Aware of:Projects? Be Aware of:
State of the art products/process availableState of the art products/process availableField proven chemicals Field proven chemicals Field proven processField proven processWork with experts in each area based on their Work with experts in each area based on their expertise and field experiences, field successexpertise and field experiences, field successTeam work, direct involvement Team work, direct involvement
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THANK YOU !THANK YOU !
Oil Chem Technologies, Inc.Oil Chem Technologies, Inc.12822 Park One Drive12822 Park One DriveSugar Land, TX 77478Sugar Land, TX 77478
www.oilwww.oil--chem.comchem.com
The information contained in this presentation, is to the best oThe information contained in this presentation, is to the best of our f our knowledge the most current and accurate. No warranties expressedknowledge the most current and accurate. No warranties expressed or or implied are made by Oil Chem Technologies, Inc. with respect to implied are made by Oil Chem Technologies, Inc. with respect to the the information set forth herein.information set forth herein.