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National Oilwell Varco has produced this brochure for general information only, and it is not intended for design purposes. Although every effort has been made to maintain the accuracy and reliability of its contents, National Oilwell Varco in no way assumes responsibility for liability for any loss, damage or injury resulting from the use of information and data herein. All applications for the material described are at the user’s risk and are the user’s responsibility.All brands listed are trademarks of National Oilwell Varco.
MERPRO® PROCESS SYSTEMS
O n e C o m p a n y . . . U n l i m i t e d S o l u t i o n s
Corporate Headquarters7909 Parkwood Circle DriveHouston, Texas 77036United States Phone: 713 375 3700Toll-Free: 888 262 8645
Mailing AddressP. O. Box 4638Houston, Texas 77210United States
Customer Service 6750 South 57th West AvenueTulsa, Oklahoma 74131United StatesPhone: 918 447 4600Toll-Free: 800 324 9478Fax: 918 447 4677
United States
Colorado
DenverPhone: 970 292 8216
Grand JunctionPhone: 970 243 7300Fax: 970 243 8360
Louisiana
HoumaPhone: 985 872 5215Fax: 985 872 9816
New IberiaPhone: 337 365 2582Toll-Free: 800 982 6882Fax: 337 365 0120
ScottPhone: 337 233 9310Toll-Free: 800 544 3437Fax: 337 233 4256
ShreveportPhone: 318 221 7005Fax: 318 221 7008
Oklahoma
Oklahoma CityPhone: 405 670 8771Fax: 405 670 8775
TulsaPhone: 918 447 4600Toll-Free: 800 324 9478Fax: 918 447 4677
Pennsylvania
WashingtonPhone: 724 222 2600Fax: 724 222 3100
Texas
AlicePhone: 361 664 2300Fax: 361 664 2357
Fort WorthPhone: 817 696 0800Fax: 817 696 0805
Houston – Telge RoadPhone: 281 200 1000Fax: 281 200 1005
Houston – MeadowglenPhone: 713 395 5000Fax: 713 395 5001
KilgorePhone: 903 983 3531Fax: 903 983 5212
Odessa – W 2nd StreetPhone: 432 333 4196Fax: 432 333 4747
Odessa – Mankins AvenuePhone: 432 367 0711Fax: 432 362 9465
San AngeloPhone: 325 655 8225 Fax: 325 655 1115
Wyoming
CasperPhone: 307 235 2751Fax: 307 265 2484
International
Argentina
Buenos AiresPhone: 54 11 4735 4301Fax: 54 11 4763 3490
Australia
Brisbane, QueenslandPhone: 61 407 732 922
Brazil
Macae, Rio de JaneiroPhone: 55 22 2796 920024-hours: 55 22 8111 1400Fax: 55 22 2773 3631
Canada
Edmonton, AlbertaPhone: 780 414 7616Toll-Free: 866 855 7867Fax: 780 465 7060
China
BeijingPhone: 86 10 5707 0900Fax: 86 10 5977 6100
Egypt
CairoPhone: 2 012 355 4000Fax: 2 02 3335 4184
Libya
TripoliPhone: 21821 7144274, ext. 108Fax: 21821 7205704
Russia
MoscowPhone: 7 495 775 2540Fax: 7 495 981 3470
Saudi Arabia
DammamPhone: 966 53 6000859
Singapore
Phone: 65 6602 4022Fax: 65 6898 4295
United Arab Emirates
Jebel Ali, DubaiPhone: 971 4 811 0100Fax: 971 4 811 0285
United Kingdom
AberdeenPhone: 44 0 1224 356339Fax: 44 0 1224 723034
GatesheadPhone: 44 0 191 4820022Fax: 44 0 191 4878835
MontrosePhone: 44 0 1674 662200Fax: 44 0 1674 662266
Venezuela
AnacoPhone: 58 282 4255329Fax: 58 282 4221854
MaracaiboPhone: 58 261 7362636Fax: 58 261 7362636
Downhole Solutions
Drilling Solutions
Engineering and Project Management Solutions
Lifting and Handling Solutions
Production Solutions
Supply Chain Solutions
Tubular and Corrosion Control Solutions
Well Service and Completion Solutions
w w w . n o v . c o m / m e r p r om i s s i o n @ n o v. c o m [email protected] w w w . n o v . c o m / m e r p r o
© 2011 National Oilwell VarcoD392004355-MKT-001 Rev. 01
Gas HandlingNOV has the technology and expertise to design and supply gas handling equipment to condition and remove liquids from gas.
Removing liquids from gas streams using AZGAZ® separatorUsing patented technology, the AZGAZ, a compact, lightweight, in-line gas/liquid separation unit, was specifically designed to remove liquid and solid particles from gas streams. The AZGAZ is ideal for free liquid knock out prior to compression.
OperationAZGAZ uses a combination of gravitational and centrifugal forces together with its own tried and tested patented technology to turn wet gas into dry gas.
Wet gas entering the unit is slowed down by the greater cross-sectional pipeline area inside, allowing larger liquid droplets to be effected by gravity and collect as liquid at the bottom of the vessel. Before it can progress any further, this liquid is caught by the first stage diffuser and drains into a collection pot.
The remaining liquid droplets, which are too small to settle under gravity, flow through the center of the first diffuser in a fine mist. Next, the droplets pass through the patented two-stage fixed vane swirler which forces the gas to spin. Here, enhanced ‘g’ forces and increased separation bring the smaller liquid droplets together and force them to the outer edge of the flow stream.
As the smaller liquid droplets leave the swirler, these liquid droplets are caught radially, collected by the final diffuser and drained from the vessel.
AZGAZ in Operation1 Wet Gas Inlet2 Liquid Drain3 Fixed Vane Inducing Gas to Swirl4 Dry Gas Outlet
w w w . n o v . c o m / m e r pi i
AZGAZ
AZGAZ installation on CNR Ninian Central
1
2
4
2 2
3
Benefits Effective removal of liquid from gas streams. The AZGAZ removes 99.5% of all liquid droplets more than 11 microns
Enables de-bottlenecking by increasing gas throughput from upstream equipment
Capable of operating over a wide range of inlet pressure and flow conditions
Low maintenance; the AZGAZ is simple to operate and has no moving parts
w w w . n o v . c o m / m e r p r om i s s i o n @ n o v. c o m
MERPRO® PROCESS SYSTEMS
The NOV® line of Merpro process equipment provides products and solutions for sand handling in both land and offshore arenas (FPSOs and platforms).
Sand handling is the ability to deal with produced sand problems by fluidizing and transporting sand from problem areas.
NOV’s line of Merpro sand handling equipment is able to manage and move sand from well streams, production separators, and other areas, controlling and conditioning the sand for flowing into desanders and sand wash systems.
What is Tore®?Tore is a unique device for solids transportation that operates with no moving parts. By introducing a liquid or gas as motive fluid, the Tore generates a vortex which fluidizes the solids immediately around it. This vortex attracts solid particles to the foot of the Tore from where they are transported as a slurry through a pipeline at controlled concentrations. A Tore transports solids economically and is more reliable than traditional solids transport systems such as slurry pumps and conveyor belts.
Tore is suitable for transporting most types of solids or sludge, potentially over great distances, and is the core technology in Merpro process systems supplied to a wide range of industries.
ApplicationTore conveys solids at slurry concentrations of up to 70% by weight. Tore can transport most types of solids or sludge and is a highly efficient mixing device especially when adding fluids to solids or sludge. Tore can move any solid amenable to transport in slurry form, or alternatively can use gas as the motive medium for fine solids when slurry transport is not appropriate, e.g. the pharmaceutical industry. A 1” Tore can transport up to 4 tons per hour of sand and a 2” Tore 16 tons.
Topside Sand Handling SolutionsNOV has a wide range of proven sand handling products incorporating Tore technology, providing efficient and reliable patented handling solutions.
Sand or Fines? Fines are generally regarded as less than 50 microns. However, NOV’s Merpro products refer to the term sand to include fines and other solids.
A
D
C
B
A Motive fluids inlet
B Swirl chamber induces spin
C Solids fluidized in vortex, transported via discharge pipe
D Slurry discharge
Sand Removal from separators utilizing the Tore Online Vessel Desander (Tore OVD) Removes solids, including fines from separators/vessels Keeps separators effectively free of solids, thus maximizing residence time and reducing solids carryover Enables solids to be removed whenever required, while the separators remain online Provides controlled discharge of slurry, thus preventing blockages in pipelines and downstream equipment such as sand cleaning units
Around 50% of installations worldwide are retrofit, including replacing unreliable jetting systems
Tore in Operation
Tore OVD consists of Tores with interconnecting pipework to remove sand from vessels.
Desanding — ToreTrap is a wellhead desander that provides water desanding. The high pressure well desander shown is rated at 15,000 psi.
Cleaning Oil from Sand — ToreScrub cleans oil from sand for discharge overboard. Shown above are ToreScrub solid/liquid cyclones and Tore used to receive and clean solids to less than 1% oil content.
Problems resulting from accumulated sand include:
Blocked vessel internals Eroded vessel lining, caused by jetting Vessel wall erosion, caused by jetting Blocked and eroded hydrocyclones
Produced Water TreatmentThe NOV line of Merpro process systems provides complete produced water treatment and injection solutions to manage increasing levels of water production. These solutions include: Bulk oil water separation Hydrocyclone packages to remove oil from produced water
Produced water polishing, including fine filtration
NOV has more than 30 years of experience in designing and manufacturing produced water treatment systems to address rising water production. The onset of increased water cut is often a trigger for increased sand production and with extensive knowledge and experience in these fields, NOV is well positioned to provide holistic produced water treatment and desanding systems, which include the following products and services:
ToreSep for Bulk Oil/Water Separation For high water cut wells around 60% to 95% water cut Provides oil stream with around 10% water; reducing
loading on first stage separator Provides water stream with around 1000 ppm oil in water; sufficient for feeding to de-oiling hydrocyclones
De-oiling Hydrocyclones for Secondary Treatment Compartmentalized design to deal with a range of flow conditions
Reduces oil in water content to 30 ppm or less, dependent on process conditions
Fil-Tore® for Tertiary Water Treatment Media based water treatment for reducing oil in water content to around 2 ppm
Removes solids down to around 2 microns
ToreSep (above), Fil-Tore® (below) De-oiling Hydrocyclones;single compartment (above), andtwo compartment vessel (below)
PWRI Desanding ToreTrap desanders remove solids from produced water prior to reinjection.
Protects PWRI pumps from erosion Provides solids removal down to 10 microns or less, subject to process conditions
Shown above is a PWRI Desanding Package including ToreTrap cyclonic desander with integral Tore. This package has 3 x 50% ToreTrap Desanders and 1x ToreScrub for cleaning solids for discharge overboard.
De-oiling hydrocyclone package for oil removal from produced water
Sand Handling Solutions
Desander Package
