EMOR Presentation
Transcript of EMOR Presentation
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Chemiphase
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Microbial Enhanced Oil Recovery-
I
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I I Introduction
Strategy
Challenges Forward
Conclusion5
2
3
4 Where Next
1
I I
Case-Histories
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F
C
C
Why do we need to employ when we arealready producing oil?
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Peak oil is the point in timewhen the maximum rate ofglobal petroleum extractionis reached, after which therate of production enters
terminal decline.
I E (IE) 2008 2013 I 2008, IEA 2020 2030C 20 .
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After Peak Oil
A
. . William J. Cummings, Exxon-Mobil company spokesman, December 2005
As Peak Oil is reached all the easily accessible oil has been extracted and further extraction usingconventional extraction techniques will become increasingly expensive.
Finding New Reserves will prove more expensive and less attractive, transportation and refiningcosts are denting profits.
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New Oil Reserves- a viable option?
It is pretty clear that there is not much chance of finding any significant
quantity of new cheap oil. Any new or unconventional oil is going to be
expensive.
Lord Ron Oxburgh, a former chairman of Shell, October 2008
Known - 4 barrels consumed for every 1 barrel discovered.
Conclusion- We need to extract as much oil from known sources
as possible
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15-50% of CRUDE OIL IN MOST RESERVOIRS
HOW DO WE ACHIEVE BETTER RESULTS
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: Reservoir drive comes from a number of natural mechanisms.
These include:
1. natural water displacing oil downward into the well,
2. expansion of the natural gas at the top of the reservoir,
3. expansion of gas initially dissolved in the crude oil,
4. gravity drainage resulting from the movement of oil.
, .
During this stage typical oil recovery is between 5-25% of thetotal oil residing in the well.
(525% )
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(1025% )
, . ;
to increase reservoir pressure (replacing or increasing the natural reservoirdrive)
to bring the oil to the surface.
by natural gas injection, gas lift (which injects a mixture of gases intothe bottom of a production well, to reduce the overall density of fluid in the well-bore)
is 10-25% of the total oil residing in the well
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Using the best estimates of %yield, we can see that there is at least:
50%
C
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Mid point
2ndhalfWhen you plot the production of an aggregate of oil fields, it
approximates a bell curve
Top of the curve
1sthalf
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Many oil fields,have alreadypeaked.
The US peakedin 1970.
53 of 68 oilproducing
countries are indecline.
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B .
Its a large deposit of stones or
sandstone sandwiched between twolayers of impervious rock. Thehollow spaces between the stonesor sand are filled with thick andviscous oil.
It takes time for oil to ooze fromzones of high pressure to the zoneof low pressure near the pipe.
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Your Text here
5-25% yield 10-50% yield 40-88% yield
SecondaryExtraction
H ?
PrimaryExtraction
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Thermal
Chemical
Gas Lift
?
EOR Techniques
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Partial EMORSuccess
with water-flooding
Field Studies1930-1940s
No Technical
ManagementControl
Small Oilcompanies
Inconclusive
Lack ofunderstanding
400 tests madeIn USA
EMORHistory
1920Claude Zobell
EOR processes were thought as unpredictable with various limiting factors - such
as microbe types, reservoir properties, fluid properties, infrequent testing
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Employing EOR techniques will increase the life and productivity of a well.
Fundamentally, the mechanisms that govern oil release due to beneficialmicrobial growth are very much the same as those proven anddemonstrable chemical and physical effects, derived from well known
EOR techniques.
Our programme can be manipulated to act in a number ofbeneficial ways;
Producing bio-surfactants
Producing bio-polymers Increasing the gas drive
Bio-cracking
Bio-film plugging
Bio-competitive exclusion
C ?
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An oil field emptiesrapidly at the start and
yields lots of oil.
Then the flowslows downgradually.
Towards the endthe flow eases to
a trickle.
An oil field yields itscontents over the years,
something like this.
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GP-ProBiologica1000
Biology
GP-ProSurF342
CHEMISTRY
H 2 ,
AI GAI
GAIN 30% Increase in Yield
Product 1 Product 2
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342
Anti Scale &
CorrosionAgents
Product
A
PowerfulCleaner,Dewaxer &DeGreaser
TransportingAgents forHeavier Oils &Asphaltenes
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2
30%
342
&
&
&
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Oxidises H2S andminimises corrosion
EnvironmentallyAcceptable
Self Transporting
throughOil pay-zones
High Salinity and TempResistance
Produces PowerfulBio-Surfactants
For Descaling, Dewaxingand Oil Flow
Title
Part B
GP-ProBiologica 1000
Ability to degrade
heavier oilsasphaltene,sto lighter,
recoverable products
30%
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Test Data
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Increase in oil production afterintroduction of MEOR
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Live data from WeatherfordLive Data Logging System
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More data available on request
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Several different
trialblends tested
Daily productiondosage rates
supplied
Well monitoredfor noticeable
changes
Data collated by
well operators
3 different test periods,independently carried out at
UKs 2nd largest operationCarried out in 2010/2012
over three to 6 month trials
MEOR Trials
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2
&
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1.6%Increase ofOil to Water
Ratio
24%Increase
In Oil ReductionSRB &H2S
Levels
MinimisedCorrosion
And Scaling
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Before During After
OIL 136bpd
Oil:Water 9:3
H2S 500ppm
SRB 1x108
OIL 169bpd
Oil:Water 11:9
H2S 3ppm
SRB 10-100
OIL 140bpd
Oil:Water 9:8
H2S 200ppm
SRB 1x104
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For We Do Not Want To See The Sun Go Down On Your Oil Production !!!
Our Proven Technology for Increasing Oil Well Yields
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OUR MISSION
Develop a SophisticatedDevelop a SophisticatedDevelop a SophisticatedDevelop a Sophisticated Programme forProgramme forProgramme forProgramme forthe existing International Marginal Production Oilthe existing International Marginal Production Oilthe existing International Marginal Production Oilthe existing International Marginal Production Oil----wellwellwellwellMarketMarketMarketMarket
Increase oil production from Marginal fields by 30% orIncrease oil production from Marginal fields by 30% orIncrease oil production from Marginal fields by 30% orIncrease oil production from Marginal fields by 30% ormoremoremoremore
The ExtraThe ExtraThe ExtraThe Extra----Production would be a direct result ofProduction would be a direct result ofProduction would be a direct result ofProduction would be a direct result ofharvesting the Extraharvesting the Extraharvesting the Extraharvesting the Extra HHHHeavieroileavieroileavieroileavieroil CCCComponents thatomponents thatomponents thatomponents thatnormally would remain down hole.normally would remain down hole.normally would remain down hole.normally would remain down hole.
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;
C
A C (E), :
1. C D2. 3. D
4. C 5. F.
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C E B
C D 150 $/
I 130 $/
E 145 $/
105 $/
A F I 102 $/
2030 $/
*I , I &
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/
/
, & /
&
/ &
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I 30% G
E D E
, A
C, F
F E
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C
I ,
I G
:
E , I
D C, I ( )
B, I F C, F
!!
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B ( ) & D & C C
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(
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C E A F E
B F C &
C E E, EA C
E
!!
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I 15% , .
E. G
, , , .
/I , .
!!
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F B
, , , 70C. 90 D C.
C2, , , .
.
!!
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Cost versus Reward for various EOR techniques
MEOR/Surfactant Projects
from:S
imandouxetal.(1990)Managing
theCostof
EnhancedOil
Recovery.
IFTJournal,vol
1.
Viscosiy
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yModifiers
Rig & Plant
Cleaning
AsphalteneDispersants
Scale Controladditives
Biocides &Microbiological
treatments
Waste WaterAdditives
Corrosioninhibitors
Wax/ParaffinRemovaladditives
Antifoulants
Refinery
Demulsifiers
Drilling
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DrillingAdditives
Rig & PlantCleaning
AsphalteneDispersants
MEOR & EORProgrammes
Biocides &Microbiological
treatments
Chelant & Acidtreatments
Corrosioninhibitors
Wax/ParaffinRemovaladditives
Demulsifiers
Cetane
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Improvers
Antifoam
Pour Pointadditives
FuelPerformance
packages
Bio-PackageSpark
Aids/antiwear
Detergents
CombustionImprovers
FuelDehazers
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Chemiphase Ltd