embark additives enhance performance from drilling to ... their versatility and exceptional...

EMBARK™ AdditivesEnhance Performance from Drilling to Production

Dow Oil, Gas and Mining

EMBARK™ Additives are a broad portfolio of drilling and pressure pumping solutions to help overcome the variety of challenges faced in today’s competitive oilfields. Their versatility and exceptional performance help operations move safely from drilling to production as quickly and efficiently as possible.

Dow offers a variety of EMBARK products in addition to cleaners and shale inhibitors, including viscosifiers and rheological modifiers, thermal stabilizers, and foaming and defoaming agents that can enhance the effectiveness of drilling and completion fluids.

Viscosifiers and Rheological Modifiers: EMBARK™ RM Many Dow rheological modifiers and filtration control materials for drilling and completion fluids, oilfield cements, and fracturing fluids have been industry standards for many years. Dow’s cellulosic and acrylic-based rheology modifiers and viscosifiers help to minimize the loss of rock permeability when working in sensitive sandstone reservoirs, reduce filtration losses from inhibited water-based drilling fluids, support formulation of salt-free drilling fluids (especially salt and glycol free cellulosics) and maximize conductivity when used in fracturing applications.

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EMBARK™ Additives | February 2016

Product Type Fluid Type

Contaminent Tolerance

Formation or Proppant Damage Viscosity Filtration

ControlAdditional Benefits

CELLOSIZE™ HEC-10

HEC dispersible powder

Brine or drilling fluid

- Mono and divalent brines

- High pH

- Hydrolyzed by enzymes, acid or thermally to simple sugars

- Non-ionic poymer that hydrolyzes easily with temperatures >110°C or acid

- Least damaging of viscosifying polymers

Regular viscosity product

Viscosity mediated

Surface treated for ease of mixing

CELLOSIZE HEC-18

HEC powder

Cement High pH, salt, elevated temperature

Minimum contribution to viscosity

Water retention Reduces free water and syneresis of cement

WALOCEL™ MKW

HEMC powder

Cement High pH Broad range of molecular weight for cement applications

Water retention - Reduces free water and syneresis of cement

- Controlled retardation

WALOCEL CRT LV Ultra-high purity CMC powder

Drilling fluid

- Monovalent brines

- pH 6-10

- Insoluble resinous precipitate with acid

- Anionic polymer that associates with sand and clay

- Easily hydrolyzed and removed by oxidizer for clean break

Low viscosity – less filtrate with lower yield

Disperses solids – reduced filtration

High purity <0.5% NaCl

WALOCEL CRT Regular

Regular viscosity – high yield withless filtrate

Retains water – reducedfiltration

ANTISOL™ FL 30000 High Vis

Ultra-high purity PAC powder

Drilling fluid

- Primarily used in monovalent brines

- pH 6-10

- Tolerates moderate calcium contamination

- Inhibitive polymer in dispersive or swellable shale intervals

- Highly anionic polymer actively coats sand and clay to prevent cuttings dispersion

- Easily hydrolyzed with oxidizer for clean break

Highest viscosity PAC for increased shale inhibition

Minimum filtration control

High molecular weight for highest shale inhibition

ANTISOL FL 100 Regular Vis

Regular viscosity for standard shale inhibition

Good filtration control

Standard molecular weight for shale inhibition

ANTISOL FL 30 Low Vis

Low viscosity for balanced viscosity and filtration control

Improved filtration control

Low molecular weight

ANTISOL FL 10 Xtra Low Vis

Extra low viscosity for highest filtration control

Excellent filtration control

Lowest molecular weight with reduced shale inhibition

EMBARK™ RM 100

ASE acrylic Drilling/Frac fluid

- Up to 10% KCl

- Not compatible with divalent brines

Easily broken with reduction pH to <7

Viscoelastic at pH 9-10; UHT clay deflocculant

No direct filtration control; filtration reduced by clay deflocculation

- Easily dispersed suspension

- High-temperature deflocculation of clay

EMBARK RM 200 HEUR acrylic

- Non-ionic

- Little extended formation damage

Viscoelastic; HT deflocculant

Viscosifiers & Rheological Modifiers: EMBARK™ RM

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Dow Surfactants: EMBARKTM SF Dow standard and EMBARKTM SF Surfactants are very versatile and can serve in many upstream roles, including above and below ground cleanup, production enhancement, foamers and drilling fluid product couplers, and they have also been applied as cloudpoint shale inhibitors. Dow surfactants are available as very economical legacy products, biodegradable products and natural vegetable-sourced chemistries. Surfactancy covering every range of oil-to-water solubility is available in many of the product series presented below.

Foamers Dow’s anionic and ionic foamers provide persistent foam in the most challenging environments including high pH oilfield cement and in air drilling operations that bail freshwater or harsh brines from the wellbore. They are suitable over a wide range of pH levels, exhibit excellent salt tolerance and demonstrate excellent performance in environmentally sensitive areas. The branched secondary alcohol ethoxylate surfactants are useful for conditions requiring high initial foam that degrades quickly and easily. These are especially useful in underbalanced drilling, surface cleaning procedures, and any other operation where large volumes of persistent waste foam must be avoided.

Wetting AgentsDow’s standard and EMBARKTM SF Surfactants are effective wetting agents and are available in anionic and ionic chemistries. These wetting agents wet oil-covered solids and pull them into aqueous phases by increasing the spreading of the liquid on a surface or improve penetration of the liquid prior to floucculation necessary for high pH oilfield cementing applications, in air drilling operations that bail freshwater or brine from the wellbore, and in tertiary recovery applications.

For improved tertiary recovery, EMBARK SF wetting agents can efficiently activate CO2 or natural gas to help produce more oil reliably and cost effectively. Dow offers a range of products designed to resuscitate lagging production in a wide range of downhole environments.


Product Typical Use Key Performance Performance Criteria Cleanup Foaming Agent

Wetting Agent HSE

EMBARK SF 120

Specialty acid, base, and salt stable micro-emulsifier

- Stable foam - Height 145/145 - Excellent micro-emulsifier

with glycol ether

- Anionic alkyldiphenyloxide disulfonate for broad range of pH and salinity

- Foamer for cement - Micro-emulsions for

wellbore cleanup

X X

EMBARK SF 160

Specialty acid, base, and salt stable micro-emulsifier

- Unstable foam - Excellent micro-emulsifier

with glycol ether

- Anionic alkyldiphenyloxide disulfonate for broad range of pH and salinity

- Micro-emulsions for wellbore cleanup

X

EMBARK SF 190

Wetting agent, microemulsifier, surfactant cleanup train, production enhancement and foaming

- Stable foam - Height 170/165

- Surface tension 26

- Anionic dioctyl sulfosuccinate for near neutral pH

- Salt tolerant - Biodegradable material

X X X

EMBARK SF 209

Wetting agent, microemulsifier, surfactant cleanup train, foaming.

- Stable foam - Height 105/90 - Polymer dispersant

- Non-ionic nonyl phenol ethoxylate

- Inexpensive - Not biodegradable

X X

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Wetting Agent HSE

EMBARK SF 213

Wetting agent, microemulsifier, surfactant cleanup train, foaming

- Stable foam - Height 118/97 - Polymer dispersant


- Inexpensive - Not biodegradable

X X

EMBARK SF 240

Foamer, oil in water emulsifier

- Stable foam - Height 123/115


- Inexpensive

- Not-biodegradable

X

EMBARK SF 245


- Stable foam - Height 170/165 - Surface tension 32

- Non-ionic, for near neutral pH

- Salt tolerant, biodegradable material

- Chloride and oxidizer resistant

X X

EMBARK SF 303

Specialty oil soluble wetting agent for hydrocarbon compatibility

- No foam - Specialty production - Enhancement applications

Non-ionic secondary alcohol ethoxylate

X X

EMBARK SF 306

Wetting agent, microemulsifier, surfactant cleanup train, production enhancement and limited foaming

- High initial unstable foam - Height 130/22 - Surface tension 27

Non-ionic secondary alcohol ethoxylate wetting agent

X X X

EMBARK SF 309


- High initial unstable foam - Height 124/43

Non-ionic secondary alcohol ethoxylate

X X X

EMBARK SF 310

Wetting agent, microemulsifier, surfactant cleanup train, production enhancement and limited foaming

- High initial unstable foam - Height 110/24 - Surface tension 27

Non-ionic secondary alcohol ethoxylate wetting agent

X X X

EMBARK SF 315


- High initial unstable foam - Height 162/36

- Non-ionic secondary alcohol ethoxylate

X X X

EMBARK SF 403


- No foam - oil soluble emulsifier

- Surface tension 30

- Non-ionic alcohol ethoxylate surfactant wetting agent

- Excellent wetting

X X

EMBARK SF 405


- Medium stable foam - Height 112/112 - Surface tension 27

- Non-ionic alkyl polyglucoside for neutral to high pH

- Relatively salt tolerant with cloud point > 100 °C

- Biodegradable material

X X X X

EMBARK SF 406


- Low unstable foam - Excellent wetting - Surface tension 30

- Non-ionic alcohol ethoxylate surfactant

- Relatively high CMC - Higher concentration may be

required

X X X

Wetting Agents (Continued)

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Wetting Agents (Continued)


Wetting Agent HSE

EMBARK SF 409




- Relatively high CMC - Higher concentration may

be required

X X X

EMBARK SF 414

Oil in water emulsifier, surfactant cleanup train, and foaming



- Relatively high CMC, higher concentration may be required

X X

EMBARK SF 417

Wetting agent, microemulsifier, surfactant cleanup train, production enhancement

- Unstable foam - Height 100/20 - Excellent wetting - Surface tension 29

- Non-ionic natural sourced surfactant wetting agent

- Low CMC, works well at low concentration

X X X

EMBARK SF 419

Wetting agent, microemulsifier, surfactant cleanup train, production enhancement

- Unstable foam - Height 100/20 - Excellent wetting - Surface tension 29

- Non-ionic natural sourced surfactant wetting agent

- Low CMC, works well at low concentration

X X X

EMBARK SF 460

Wetting agent for microemulsions, surfactant cleanup train, production enhancement and limited foaming

- Medium stable foam - Height 80/80 - Surface tension 29

- Non-ionic alkyl polyglucoside for neutral to high pH

- Relatively salt tolerant with cloud point > 100 °C

- Biodegradable material

X X X X

pg 6


Thermal Stabilizers: EMBARK™ STEMBARK™ ST Thermal Stabilizers are a more environmentally friendly alternative to high-VOC pour point depressants with safe low toxicity, low emission, low odor and low flash point alternatives.

These amines reduce pour point temperatures in cold applications, while also providing an acceptable flash point to improve efficiency and safety. Available for hot and cold applications, Dow’s thermal stabilizers provide thermal stability and pH buffering for drilling fluids and fracture stimulation fluids.

Product Description Flashpoint Performance Criteria

2-Ethyl Hexanol Secondary alcohol organic defoamer component; sparingly soluble in water

82°F (28°C) Biodegradable defoamer component used in defoamer and treating chemical blends

EMBARK™ DF220 Organic soluble antifoam agent partially soluble in water

345°F (174°C) Polyglycol biodegradable defoamer

EMBARK DF240 Organic soluble antifoam agent partially soluble in water

365°F (185°C) Polyglycol biodegradable defoamer

EMBARK DF900 Series

Silicone defoamer

Product Description Flashpoint pKa1 pKa2 0.5% solution pH

1% solution pH

MonoethanolamineMEA is a commercial grade amine buffer used to maintain pH of fluids exposed to acid gasses.

205°F (96°C)

9.44 11 11.6

DiethylenetriamineDETA is a commercial grade amine buffer primarily used in hydraulic fracturing fluids and for preparation of ester amides for oil mud emulsifier and imidazoline corrosion inhibitors.

209°F (98°C)

9.8 8.74 10.8 11.4

TriethylenetetramineTETA is a commercial grade amine buffer primarily used in hydraulic fracturing fluids and for preparation of ester amides for oil mud emulsifier and imidasoline corrosion inhibitors.

365°F (185°C)

9.74 9.08 10.8 11.4

Tetraethylene-pentamine

TEPA is a commercial grade amine buffer primarily used in hydraulic fracturing fluids.

381°F (194°C)

9.7 9.14 10.7 11.3

Defoamers: EMBARK™ DFEMBARK™ DF Defoamers can help maintain well control by blocking the formation of intractable foam to enhance pump, storage and fluid transport efficiency. They can be used in mud pits, circulating tanks, production gathering equipment or processing systems, where they can even break up any foam that already exists.

EMBARK DF Defoamers work as surface defoamers and subsurface bubble coalescers to offset incompatibility between oilfield fluids, air, or reservoir fluids that can create excessive foam.

The EMBARK Defoamer product line includes basic alcohol defoaming agents, insoluble polyglycols, silicones, and specialty surfactants to meet virtually any requirement.

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Mutual Solvents – Glycol Ethers & Specialty AlcoholsDow offers the industry’s leading mutual solvent products that, in conjunction with other EMBARK™ products, provide economical options that enable high flash point with complete water solubility and low surface tension.


Product Line Chemistry Attributes and Application

CELLOSOLVE™/ CARBITOL™

Glycol ether Low surface tension surfactants with low VOC and unsurpassed hydrotropic characteristics

DOWANOL™ Glycol ether High-flash-point coupling agent with complete water solubility

n-butanol Primary alcohol Economical and effective for various cleaning applications

Other Specialty ProductsDow manufactures a wide variety of chemicals used across a broad range of upstream applications. For cementing applications, these include copolymer additives to toughen cement, improve adhesion, and block gas migration. Specialty acrylics and epoxies can be formulated for blocking vuggy or open fracture loss zones.

Dow chemists and engineers work closely with customers, when needed, for selection of just the right chemistry. Dow chemistries include environmentally acceptable, high-performance and economical specialty surfactants, solvents, resins, and natural and synthetic polymers.

The Dow Chemical Company

This guide is designed as a general product overview. Please contact your local Dow Oil & Gas representative for up-to-date, detailed technical information including registrations and use limitations and to discuss individual applications or requirements.

Notice: No freedom from any patent owned by Dow or others is to be inferred. Because use conditions and applicable laws may differ from one location to another and may change with time, Customer is responsible for determining whether products and the information in this document are appropriate for Customer’s use and for ensuring that Customer’s workplace and disposal practices are in compliance with applicable laws and government enactments. The product shown in this literature may not be available for sale and/or available in all geographies where Dow is represented. The claims made may not have been approved for use in all countries. Dow assumes no obligation or liability for the information in this document. References to “Dow” or the “Company” mean the Dow legal entity selling products to Customer unless otherwise expressly noted. NO WARRANTIES ARE GIVEN. ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPESSLY EXCLUDED.

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Experience You Can TrustDow has been helping customers meet their oil, gas and mining needs for more than 65 years. We work to maximize value for our customers through extensive industry knowledge, advanced innovation and chemistry expertise.

A Note About Product SafetyWhen considering the use of any Dow products in a particular application, you should review the latest Material Safety Data Sheets from Dow and ensure that they are intended for safe use. For other products mentioned in the text, you should obtain the current Material Safety Data Sheet and other available product safety information when reviewing and take necessary steps to ensure safety of use before handling.

No chemical should be used as or in a food, drug, medical device or cosmetic, or in a product or process in which it may contact a food, drug, medical device or cosmetic, until the user has determined the suitability and legality of the use. Since government regulations and use conditions are subject to change, it is the user’s responsibility to determine that this information is appropriate and suitable under current, applicable laws and regulations.

Dow requests that the customer read, understand and comply with the information contained in this publication and the current Material Safety Data Sheet(s). The customer should furnish the information in this publication to its employees, contractors and customers, or any other users of the product(s), and request that they do the same.

To Learn More…For more information about EMBARK products, contact your nearest Dow representative.

Form No. 812-00394-0216 BBI®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow

embark additives enhance performance from drilling to ... their versatility and exceptional...

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