radiagreen - blackstoneblackstone.com.co/web/catalogos/oleon/radiagreen_new.pdf · water based mud...

OLEON

radiagreen

Oleon nv is the leading company in the production of oleochemicals in Europe. The concept we have chosen combines technical performance and environmental compatibility: our products meet the most stringent market requirements, and the renewable property of our raw materials, vegetable oils and animal fats provides a response to the latest environmental legislations. Trends today show that this concept meets the future needs of our society.

RADIAGREEN

Information contained in this publication is true and accurate to the best of our knowledge. The nominal values stated herein are obtained using laboratory test specimens. Oleon nv and its affiliated companies do not accept any liability whatsoever arising from the use of this information or the use, application or processing of any product described herein. No information contained in this publication can be considered as a suggestion to infringe patents. The Company disclaims any liability that may be claimed for infringement or alleged infringement of patents.

TRADEMARK OF OLEONMOULD

NTRADEMARK OF OLEOGREEN

TRADEMARK OF OLEONMULS

TRADEMARK OF OLEON

Table of contents3 Radiagreen Oilfield Chemicals4 Radiagreen Base Oils8 Radiagreen Waterbased Drilling Fluids Additives14 Radiagreen EME Salt22 Radiagreen EBO26 Radiagreen SL30 Radiagreen RA

3

The rising concern about the negative impact on the environment by offshore drilling operations initiated the development of new environmental friendly products in the 1980’s.

Radiagreen® is a range of products which covers now almost every segment of the oil & gas industry from seismic exploration over drilling and completion to the production and transport of oil and gas.

Radiagreen® drilling chemicals are applied in both oil-based mud systems and water based mud systems. Based on ester chemistry, they combine performance and environmental friendliness. Radiagreen® base oils and lubricants significantly reduce friction and wear resulting in high drilling rates and extended tool life in the most challenging circumstances. All Radiagreen® products are derived from natural and renewable resources, they are rapidly biodegradable and present absolutely no danger to marine life nor to the operating crew.

The main process leading to Radiagreen® oilfield chemicals is the esterification of fatty acids. More than 250.000 Tonnes/y of natural fats and oils are converted into a wide range of fatty acids, fatty alcohols and glycerine in our ertvelde plant near Gent. A sizeable share of these basic oleochemicals is shipped to our Oelegem plant east of Antwerp, to combine them with other molecules, using processes such as saponification, esterification, formulation, etc. Throughout the entire production, the greatest care possible is given to keeping intact the ecological and human safety features of our feedstock. Large stocks of Radiagreen®

products are available in Europe, US Gulf of Mexico, Middle East and Far East (Malaysia).

On request, our technical staff will supply more detailed technical information on Radiagreen® products, on the IFP laboratory results and on the experience gained from the various field tests.

RADIAGREEN® OILFIELD CHEMICALS

The Radiagreen BDMF (Biodegradable Drilling Mud Fluid) base oils are based on Ester chemistry and offer the best environmentally friendly alternative to replace mineral oils in formulated inverted oil base muds.The practical experience gained from many wells confirmed the initial findings of the IFP (French Petroleum Institute). IFP extensively tested the evolution of rheology, the dynamic and static filtration and the general stability of Radiagreen BDMF-based synthetic mud systems in a 10-day simulation (accelerated ageing test) in a high pressure and high temperature loop. Systems based on Radiagreen BDMF base oils exhibit very good drilling fluid performance like excellent penetrations rates and better lubricity properties.Radiagreen BDMF is available in various viscosity grades: Radiagreen BDMF LV, VLV and DW. Both LV and VLV are pure esters, DW is based on a blend of esters and synthetic oil. BDMF LV is used in drilling operations where environmental legislations prohibit the discharge of cuttings contaminated by mineral oil based systems.VLV and DW are used under the same conditions but the low kinematic viscosity allows formulations and applications for Deep Water operations, mainly because the temperature and pressure do not adversely effect the systems viscosity. The low viscosity of VLV and DW allows lower ester/water ratio drilling fluids formulations, thus reducing the overall fluid costs by reducing the amount of base fluid needed and the amount of base fluid lost with cuttings. Radiagreen BMDF base oils reduce the coefficient of friction while drilling with 30 to 40 % compared to traditional mineral base oils.These superior lubricating properties are a key element to reduce Torque and Drag especially while drilling highly deviated or extended reach wells.

RADIAGREEN® BASE OILS

35

30

25

20

15

10

5

0

0 10 15 20 25 30 35 40 45 50

Temperature (°C)

Vis

cosi

ty (m

m2 /

s)

BDMF LV

BDMF VLV

BDMF DW

Viscosity variation function of temperature

5

Elastomer compatibility used to be a problem in the past when using pure esters. However this problem can easily be overcome by using appropriate elastomers such as Viton or Kalrez. These elastomers show less sensitivity to esters in term of swelling which extends the elastomers life generally and drastically reduces the overall mainten ance on the rigs. Other tests at the IFP have among others, clearly demonstrated that: Radiagreen BDMF-based fluids systems satisfactorily resist to possible contaminations during the drilling process, such as Seawater influx or Solids contamination. Redrilled cement does not modify the characteristics of Radiagreen BDMF-based mud systems. The consequences of accidental contamination of Radiagreen BDMF-based mud systems by cement slurry are similar to the consequences when using mineral oil or synthetic based mud systems.Contamination by cement slurry will increase the rheological properties in proportion with the concentration of contaminant. These properties remain stable after ageing for a contamination of up to 10%. The thickening time of cement slurry in the cases of Radiagreen BDMF-based muds is similar to mineral oil or other synthetic based mud systems. The Radiagreen BDMF range of products was developed after comprehensive testing under actual bottomhole conditions and these tests have shown that Radiagreen BMDF-based fluids systems remain stable after ageing temperature of up to 160°C (320°F).The Radiagreen BDMF base oils range has been fully approved by DTI (UK), SFT (Norway) and meet the new GoM regulations of EPA (US). These results make the Radiagreen BDMF range a particularly attractive solution for operators who want to use OBM where stringent environmental regulations don’t allow the use of conventional invert oil based mud systems. Radiagreen base oils are technically, environmentally and economically a true alternative for cuttings re-injection or shipping back and treatment onshore.

140

120

100

80

60

40

20

0Nitrile Butadiene

Rubber (NBR)Ethylene Propylene

Diene Rubber(EPDM)

FluorinatedPropylene Rubber

(VITON)

% S

wel

ling

Fric

tion

Coe

ffici

ent,

%

100

90

80

70

60

50

40

30

20

10

0

Lubricity results for various Base Oils

Mineral Oil BDMF LV BDMF VLV BDMF DW

CharaCteristiCs referenCe BDMf

BioDegraDaBility

Aerobic Biodegradability OECD 306 100

Anaerobic Biodegradability - 60 days 96.3

Anaerobic Biodegradability - 275 days 100

Marine toxiCity

Skeletonema Costatum EC50 mg/L 350

Corophium Volutator EC50 mg/Kg 2800

Log POW OECD 117 4.99

Bioaccumulation OECD 305 A-E Non bioacc.

health anD safety

Acute dermal irritation in rabbits CIT 12302 TAL Non irritant

Skin sensitisation CIT 12304 TSG No cutaneous reaction

Acute oral toxicity in rats CIT 12301 TAR > 2000

Acute eye irritation CIT 12303 TAL Non irritant

CharaCteristiCs analytiCal MethoDs lV VlV DW

Viscosity mm2/s at 40°C/104°F ASTMD 445 6.2 4 3

Specific Weight, Kg/M3 at 20°C/68°F DIN 51757 864 862 830

Pour Point, °C ASTMD 97 -24 -30 -73

Flash Point, °C ASTMD 92 178 154 > 100

Solubility in water Insoluble Insoluble Insoluble

Standard availability: bulk, 1000 Liter Liquid containers, 175 Kg net drums




TRADEMARK OF OLEON

Radiagreen® EBL - Ester Based LubricantOleochemicals are derived from natural oil and fats, a safe feedstock for both man and the environment. Starting from these characteristics and from the excellent lubricity of the hydrocarbon chain of natural oils and fats our drilling additives specialists in close cooperation with the IFP (French Petroleum Institute), have developed Radiagreen® EBL, an environmentally friendly Ester Based Lubricant for drilling operations with water based muds.Radiagreen EBL is readily biodegradable and non toxic. It is developed to enhance drilling rates when drilling with water based muds and reduces torque and drag in many cases between 20% and 50%.As a result of its particular composition, it eliminates bit balling related problems, and vastly reduces the risk of differential sticking. To free the stucked pipe in a differential sticking situation, Radiagreen EBL can be added as a concentrated pill in the drilling fluid and displaced and spotted across the sticking zone.

Radiagreen EBL is readily dispersible in any Water Based Mud (WBM). The use of this lubricant does not affect rheology, nor filtration behaviour nor any other mud properties. In some cases

its addition may even improve the API and HPHT filtration properties.

Improved WBM lubricityImproved lubricity results in torque and drag reduction allowing faster, deeper and highly deviated drilling. Extensive laboratory tests have shown that the addition of Radiagreen EBL reduces the friction factor of water based muds to values as low as those of oil or pseudo-oil based muds. These lab results were confirmed in many field tests, where small additions of EBL (1% to 3% by volume) enabled to drill highly tortuous wells.

The performance of Radiagreen EBL has been demonstrated in field tests in the North Sea, Far East, Europe, USA and Africa.The graph on the next page shows the resulting torque drop after the addition of 2% (v/v) Radiagreen EBL in the 12 1/4” section of an offshore well in Vietnam.

Product CharacteristicsRadiagreen EBL is also effective in high density formulations. An addition of 3%, results in a remarkably lower torque. At temperatures of up to 160°C, Radiagreen EBL remains effective and stable.

RADIAGREEN® WATER BASEDDRILLING FLUIDSADDITIVES

9

0.4

0.3

0.2

0.1

0Fresh WBM Fresh WBM

+ 1% Radiagreen EBL

Low ToxicOBM

Low Toxic oil substitued by Radiagreen BMDF LV

26000

24000

22000

20000

18000

16000

14000

12000

10000

8000

6000

4000

2000

1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 2900 3000

Tor

que

(ft.lb

s)

Section 12/1/4”

2% EBL

Wellbore Friction Reduction

Measured Depth (m)

Off Bottom Actual On Bottom Computed On Bottom

√ Improve lubricity, reducing torque and drag√ Prevents bit balling√ Prevents stucked pipes by differential sticking√ Non-damaging for producing zones√ Non-toxic, Environmentally friendly

applications and Benefits

CharaCteristiCs analytiCal MethoDs typiCal Values

Viscosity mm2/s at 40°C/104°F ASTMD 445 110

Specific Weight, Kg/M3 at 20°C/68°F DIN 51757 983

Pour Point, °C ASTMD 97 -20

Flash Point, °C ASTMD 92 220

Standard availability: bulk, 1000 Liter Liquid containers, 175 Kg (47 US gal) net drums

11

IMpORTANT

RADIAGREEN EBL, EME, EBO can be used in a large range of WBM,

but high pH mud systems (Silicate mud…) must be avoided.

Avoid contact between RADIAGREEN EBL, EME, EBO

and green cement, otherwise lubricant hydrolysis may occur, followed by

foaming problem and loss of lubricity.




TRADEMARK OF OLEON

Radiagreen EME lubricants are two specific lubricants developped to solve torque and drag problems in highly tortuous or extended reach wells. They are both readily biode-gradable and non toxic. They can also prevent bit balling, increase the rate of penetration, and reduce the risk of differential sticking problems. In such differential sticking situations, Radiagreen EME can be added as a concentrated pill in the drilling fluid and displaced and spotted across the sticking zone to free the stucked pipe.

Radiagreen EME is readily dispersible in any solids-free drill-in fluid or brine. The use of these lubricants does not affect rheology, filtration behaviour nor any other mud property. In some cases its addition may even improve the API and HPHT filtration properties. It forms milky dispersions in the brines. After initial mixing, the lubricant will not separate into an oily layer on top of the mud. If however a brine solution with lubricant must be stored prior to its use, it is recommended to keep the entire lubricant-brine solution under gentle agitation. This new lubricant shows no “greasing” problems and also remains into solution without

“phasing out” which is important when the lubricant-brines solution is in place downhole without circulation.

Wherever possible, a freshly mixed solution will always be preferred.The optimum concentration is 1.5 to 2% by volume in order to get the maximum benefits of the lubricant (see graph). This is based on laboratory results. Effectively depending on the actual well conditions and operational conditions (TVD, Well length, Well inclination, Tortuosity, Tubing size,…); the optimum may be higher in the range of 3 to 3.5% by volume. Those concentrations have to be evaluated on a case by case basis. Generally no extra benefit is expected for concentrations above 3%.

RADIAGREEN® EME SALT

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0

Fric

tion

Coe

ffici

ent

0 1 2 3 4 5

Radiagreen EME saltLubricity Coefficients Vs Concentration for different Brines

% Lub (w/w)

NaCl brine - d1.2K formate - d1.5

Sea WaterNaCl saturated br

CaBr2 brine - d1.2KCl saturated brineNaBr brine - d1.5

15

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0

Fric

tion

Coe

ffici

ent

Fric

tion

Coe

ffici

ent

0

0

50

50

100

100

150

150

200

200

250

250

300

300

450

450

LSND Base0.4492 Avg. C. F.LSND + 1.5% EME Salt

0.2945 Avg. C. F.LSND + 2.5% EME Salt0.2739 Avg. C. F.

(Lubricity Graph - lubricity tests were run at 150 rpm bob speed, 100 lbf contact force, 2gpm flow rate and 75°F)

Metal-to-Shale Contact

Data Points

Data Points

The graph shows the reduction in friction coefficient when Radiagreen EME Salt was sub-mited to extensive laboratory testing at Westport laboratory using the M-I HLT Lubricity testing equipment. The lubricant was added to a Low-Solids/ Non-Dispersed fluid and the change of the friction coefficient was measured in Metal-to-Shale, Metal-to-Sandstone and Metal-to-Metal contact surfaces. The optimum was achieved with 2.5% concentration and this reduced the average Coefficient of friction of the base mud by 39%.

Metal-to-Metal Contact

LSND BaseLSDN + 1.5% EME SaltLSND + 2.5% EME Salt

0.4425 Avg. C. F.0.2748 Avg. C. F.0.2739 Avg. C. F.

EME Salt can be added to the active fluid system either by the hopper or directly into the pits. It is recommended to add the lubricant via a concentrated sweep. In any case, the addition should be done at the lowest shearing condition to avoid excess foaming. During mixing a non-persistent foam may occur on top of the fluid. This foam will however gradually disappear after the addition is finished and the agitation is reduced to its minimum. To effectively reach the desired concentration of EME Salt in the active system, it is recommended to make a 30% v/v mixture of EME Salt in the brines in the slug pit, prior to bleeding at a controlled rate into the active system. When the EME sweep has been formulated, check the pH. If necessary bring it back slowly to the initial pH of the brine.For particular applications, like high Calcium Carbonate content in the drilling fluid or Drill-in Fluids, Radiagreen EME Salt is always recommended instead of EBL. It gives the same lubricity properties while drilling but avoids side problems like greasing out. This well in the Irish Sea was drilled with a Drill-in fluid system. The addition of 1.5% (v/v) Radiagreen EME Salt reduced the wellbore friction by 35% while drilling of the 85° deviated well. This allowed the operator to reach TD without time loss. The same concentration in a seawater completion fluid significantly reduced drag when installing the production liner.

Product CharacteristicsAt temperatures of up to 160°C, Radiagreen EME remains effective and stable.Radiagreen EME current uses are for completion fluids, certain particular drilling fluids or applications like Coiled tubing, Expandable tubulars, Sand screens,…

√ Improve lubricity, reducing torque and drag√ Prevents bit balling√ Prevents differential stuck pipes√ Non-damaging for producing zones√ Non-toxic, Environmentally friendly


17

34

32

30

28

26

24

22

20

18

16

14

12

10

8

6

4

2

0

5000 6500 8000 9500 11000 12500 14000 15500 17000 18500 20000 21500 23000 24500 26000 27500

Measured Depth (ft)

Vertical Section (feet)

Tor

que

(kft.

lbs)

800

740

680

620

560

500

440

380

320

260

200

140

80

20

-40

RPM

and

RO

P

On Bottom Torque RPM ROP(ft/hr) Stick & Slip

Field example / Offshore Middle East

0

400

800

1200

1600

2000

2400

2800

3200

3600

4000

4400

Tru

e V

ertic

al D

epth

(ft)

-100 1900 3900 5900 7900 9900 11900 13900 15900 17900 19900 21900 23900

9 5/8” Casing 8 1/2” Open Hole Planned

320028002400200016001200800400

0

Nor

th (f

t)

-100 1900 3900 5900 7900 9900 11900 13900 15900 17900 19900 21900 23900

East (ft)

√ Improve lubricity, reducing torque and drag√ Prevents bit balling√ Prevents differential stuck pipes√ Non-damaging for producing zones√ Non-toxic, Environmentally friendly

RADIAGREEN EME Salt

CharaCteristiCs analytiCal MethoDs



Pour Point, °C ASTMD 97 max -10



typiCal ValueseMe salt

19

IMpORTANT









TRADEMARK OF OLEON

Radiagreen EBO is a readily biodegradable and non-toxic multipurpose lubricant for water based mud systems. It reduces torque and drag and the potential for differential sticking by reducing the coefficient of friction in the common used water based muds.

It prevents bit balling, increases the rate of penetration, helps you to reduce the mud density and additionally provides extra wellbore stability. In deep water applications, the addition of 10 - 20 % v/v to a low viscous (2-3 cSt) paraffinic base oil will significantly improve the lubricity of the mud.

RADIAGREEN®EBO

Radiagreen EBO is recommended for use in environmen tally sensitive area’s where differential sticking and bit balling are likely. Normal concentrations of Radiagreen EBO range from 3 to 6 % by volume depending on the mud density, desired torque and drag reduction and mud system. Higher concentrations may be needed for pills and special applications. After the initial treatment, periodic treatments should be made to maintain the desired concentration. Radiagreen EBO should be added directly to the mud pit.

√ Improve lubricity, reducing torque and drag√ ROP enhancer√ Prevents differential stuck pipes√ Non-damaging for producing zones√ Prevents bit balling


IMpORTANT







Viscosity mm2/s at 40°C/104°F ASTMD 445 8.8





CharaCteristiCs referenCe result

BioDegraDaBility

Aerobic Biodegradability OECD 306 86

Anaerobic Biodegradability - 60 days 96.3

Marine toxiCity

Skeletonema Costatum EC50 mg/L 350

Acartia Tonsa LC50 mg/L > 1800

Corophium Volutator EC50 mg/Kg 2800

Log POW OECD 117 4.99

Bioaccumulation OECD 305 A-E Non bioacc.

health anD safety

Acute dermal irritation in rabbits CIT 12302 TAL Non irritant

Skin sensitisation CIT 12304 TSG No cutaneous reaction

Acute oral toxicity in rats LD50 mg/L CIT 12301 TAR > 2000

Acute eye irritation CIT 12303 TAL Non irritant




TRADEMARK OF OLEON

Radiagreen EBL and EME lubricants give excellent results and benefits in most water based mudsystems. They are however not suitable to be used in high pH systems since esters hydrolise under these conditions. High pH mud systems (i.e.: Silicate mud) are often used when drilling through highly reactive formations in a sensitive environment with dis charge limitations. Silicate mud system provide optimum inhibition properties, high penetration rates and wellbore stability. But still the lubricity is a major concern due to the nature of this system. Oleon nv in collaboration with IFP (French Petroleum Institute), have developed Radiagreen® SL; a lubricant specifically designed for Silicate mud systems (also suitable in other high pH mud systems; i.e.: K formate muds). It reduces torque and drag and the potential for differential sticking by reducing the coefficient of friction and is readily biodegradable and non-toxic multi-purpose.

Improved WBM lubricityImproved lubricity results in torque and drag reduction allowing faster, deeper and highly deviated drilling. Extensive laboratory tests have shown that the addition of Radiagreen SL reduces the friction factor of Silicate muds and doubles the EP tolerance of a Silicate mud system.

A well Offshore Vietnam was drilled in the 8 1/2” section with a Silicate mud. The addition of 1.5% Radiagreen SL (v/v) reduced the wellbore friction by 15% and up to 36% torque reduction with SL concentration of 4% (v/v) while drilling of the 70° deviated well. This allowed the operator to reach TD without time loss. The graphs show the resulting torque drop after the addition of 1.5% to 4% (v/v) Radiagreen SL.

RADIAGREEN® SL

Radiagreen SL is recommended for use in environmentally sensitive area’s. Normal concen-trations of Radiagreen SL range from 2 to 5% by volume depending on the mud density, desired torque and drag reduction and mud system. After the initial treatment, periodic treatments should be made to maintain the desired concentration.

√ Improve lubricity, reducing torque and drag√ ROP enhancer√ Prevents differential stuck pipes√ Non-damaging for producing zones√ Prevents bit balling


27

20000

18000

16000

14000

12000

10000

8000

6000

4000

2000

1100 1300 1500 1700 1900 2100 2300 2500 2700 2900 3100 3300

Tor

que

(ft.lb

s)

Depth (m)

Offshore Vietnam - Section 8/1/2”

Off Bottom TorqueOn Bottom Torque

Fric

tion

Fact

or

0

1 2

3 4

5

Rad

iagr

een

SL C

once

ntra

tion

8/1/2” open hole friction coefficient

0.0

0.1

0.2

0.3

0.4

0.5

1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000

Measured Depth (m)

planned concentration

Lubricity test vs Load: Silicate Mud - Before Aging

Load (Inch. Pounds)

0 50 100 150 200 250 300 350

50

45

40

35

30

25

20

15

10

5

0

Tor

que

read

ings

without lubricant3% Radiagreen SL5% Radiagreen SL3% L15% L1





Flash Point, °C ASTMD 92 > 120





TRADEMARK OF OLEON

Reservoir Activator is an environmental friendly water-base fluid additive for drill-in and completion fluids. It is a molecule engineered to easily pass through a drill-in fluid filter cake (external/internal) along with other filtrate components to maximize wellbore productivity and prevent formation damage.

Optimizing a water-base drill-in fluid -With Radiagreen® RA, a water-base drill-in fluid can be designed to stimulate reduction in residual water content in the pore spaces in a similar manner observed with invert emulsion systems.

-In other words, the permeability of a water-wet formation can be increased in the near wellbore zone by reducing the volume of trapped water when contacted by invaded filtrate containing the Radiagreen® RA.

-The presence of Radiagreen® RA in the fluid filtrate induces a strong decrease of brine/oil interfacial tension even at low concentration.This means that during oil back flow, the capillary forces will be considerably reduced thus inducing a higher and easier oil back flow.

-The water-base mud filtrate that classicaly plugs the nearer well bore can be formulated with the Radiagreen® RA so that the wetting phase that would be trapped in fact induces a better mobility of the oil and thus a favourable relative permeability effect.

What does Radiagreen® RA do?-It inhibits the adsorption of the drill-in and completion fluid polymers on the in-situ surface areas of the reservoir.

-It reduces the water saturation level of the formation rock to increase flow area.-It enhances compatibility between the brine filtrate and formation crude.-It reduces the surface tension between filter cake particles, thus enhancing the ease of well-bore clean up during displacement and natural cake “lift-off ” during the onset of production.

-Collectively, these benefits, when used to complement pre-established drill-in fluid design criteria, further increase reservoir productivity in open hole completion applications.

RADIAGREEN® RA

31

ExternalCake

InternalCake

Formation Damage

Pore size reduction- Fines Migration - Clay swelling- Solid invasion- Adsorption/ precipitation of polymers - Formation of emulsions

Relative permeability reduction

- Modification of saturation

RA 0%

RA cc1

RA cc2

Effect of RA on cake lift off

Pres

sure

(mba

r)

Volume (VP)

W/O 80/20 50/50 20/80 W/O 80/20 50/50 20/80

without RA with RA / separation after a few hours

Interactions mud filtrate / reservoir fluidsReservoir brine (20g/L TDS) + reservoir oil (22°API, asphaltenes 5wt%, resins 15wt%)

33

√ Easily dispersible in a water-base fluid√ Compatible with different chemical components used in WBM√ Passes easily through the filter cake and is not retained or

adsorbed on all the fluid solids √ Adsorbs on rock and modifies rock wettability√ Acts even as a desemulsifier should emulsions be formed between

the fluid filtrate and the reservoir fluids entrapped in the pores


ClasChaCh sanDstone flopro flopro + ra

Porosity (%) 16.3 16.1

Gas Permeability kg (mD) 685 546

Water Permeability kg (mD) 533 416

Oil Permeability at Swi ko (mD) 452 (Swi 25.8%) 281 (Swi 25.1%)

Oil Permeability after back flow ko (mD) 176 206

% return Permeability 39 73.3

Sw after back flow (%) 27.8 29.5

Tests on long cores(with complete formulation)

These results confirm that after back-flow, the return permeability of the porous medium is enhanced in presence of Radiagreen® RA. The product is preferentially adsorbed, thus limiting adsorption of the polymers of the mud, preventing plugging of the pores and as a result enhancing the oil permeability.




TRADEMARK OF OLEON

oleon Marketing & sales

Industriezone Ter StratenVaartstraat 130

2520 Oelegem - BelgiumT: +32 (0)3 470 62 72F: +32 (0)3 470 62 00E: [email protected]

oleon r&D technical assistance

Industriezone Ter StratenVaartstraat 130

2520 Oelegem - BelgiumT: +32 (0)3 470 62 01F: +32 (0)3 470 62 00E: [email protected]

oleon americas

5729 Lebanon DriveSuite 144-202

Frisco, Texas 75034 - USAT: + 1 972 347 6133 F: + 1972 347 6155

E: [email protected]

oleon (asia-pacific) sDn BhD

Suite 28-03 Level 28, Centro8 Jalan Batu Tiga Lama

41300 KlangSelangor Darul Ehsan

MalaysiaT: + 60 3 3345 2782F: + 60 3 3345 2758

E: [email protected]

www.oleon.com

radiagreen - blackstoneblackstone.com.co/web/catalogos/oleon/radiagreen_new.pdf · water based mud...

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