2000HP Oilwell E2000 Drilling Rig Used with CAT Certification

2000HP Oilwell E2000 Drilling Rig Specification

• Oilwell E2000 single drum 2000HP draw works (s/n H-47-1600) with Elmagco 7838 electric brake (s/n TA-11138W)
• PERMA brake lubrication device, FOSTER catheads, OMRON console and powered by (2)1000 HP GE 752 electric motors (Inspected)
• Lee C. Moore 142′ x 30′ Base + 31′ High Beam Leg Raised Floor
• Cantilever Type Mast having a rated static hook load capacity of 1,300,000 lbs. per API Standard 4E with 14 lines strung to the traveling block. 800 ton skewed Type Crown Block having one 60″ diameter fabricated steel working sheaves mounted on tapered roller bearings.
• Deadline on off-drillers side. Sheaves grooved for 1 1/2 diameter wireline (s/n T 3844)
• Lee C. Moore swing-up substructure, 30′ floor height, 26′ clear height, 1,300,000 lb casing capacity simultaneous with 800,000 lb. setback capacity at 31′ elevation (s/n 73844)
• (2) A1700-PT triplex mud pumps rigged out with pulsation dampners, pressure relief valves, electric oilers and powered by (2) GE 752 each(Inspected)
• (3) Caterpillar 399 Diesel Engines with 1050 KW Kato Generators (ran out) mounted on covered generator oilfield skids.
• Ross Hill 4 x 4 SCR house with 2000 Amp breakers, Modern feed from bus bar for top drive 600 V feed to VFD House (Rebuilt)
• Oilwell 500 Ton Block (s/n 020-026) with BJ 5500 Dynaplex hook(s/n 931)
• National P-650 Swivel (s/n 651-10)
• CanRig 500 Ton Model 1050E-500 with Drive House
• NOV 3080 Iron roughneck (s/n 1044)
• Oilwell 27 1/2 ” Rotary Table (s/n 688)
• Koomey 180 gal 7 station air and electric accumulator with remote (s/n 2503)
• (3) Mud Tanks with stirrers, shakers, electric centrifugal pumps, de-sander, de -ilter, cyclone, Swaco mud degasser.
  10 x 45 Pusher House (s/n 125-113)
• Junk Box with misc, 25 lift subs, 15 cross over-bit subs, mud bucket, Kelly drive bushing, elevator bails, solid master bushing,13 5/8 ” 5000 drilling spool, vibrator hose, Kelly valve, dart valves.
• Trip Tank, oil bin, catwalk, V-Door, Driller Dog House, ODS Dog House mud mixing house, fuel tank, derrick stand, water tanks, suitcases, survey unit, combination storage house, pump parts house, (linears, rods, etc) hand rails, shaker screen box.
• Air compressors.

The Oilfield Equipment related post 2000HP Oilwell E2000 Drilling Rig Used with CAT Certification is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

NOV A1700PT Bearing New [AE]

Product Name:  NOV A1700PT Bearing (New)

Part Number:  AD4812DOS,  AD10500D and ADA4260

NOV A1700PT Bearing Benefits

NOV A1700PT Bearing meet the most stringent tolerances ensuring equipment runs at maximum load for peak output. Bearings specially designed and manufactured to operate in extreme temperatures and specifically designed for NOV Mud Pump.

NOV A1700PT Bearing enhance smooth performance and efficiency of Triplex Mud Pump. These Anti-friction bearings permit free motion between moving and fixed parts. These NOV A1700PT Bearing is very essential to mechanized equipment as they hold or guide moving machine parts and minimize friction and wear. American Roller Bearing Company is a leading manufacturer of quality Anti-Friction Bearings in the industrial markets.

We are supplying bearings for NOV Triplex Mud Pump for a long time.

The Oilfield Equipment related post NOV A1700PT Bearing New [AE] is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

1100HP Double Mast Land Rig TOI 480 Used

1100HP Double Mast Land Rig TOI 480 Used Information

Equipment Name: 1100HP (14,000’) Double Mast Land Rig TOI 480
Equipment Location: Pennsylvania
Rig Name: TOI 480
Manufacturer: Custom
Horse Power: 1100HP
Manufacture Date: 2011

1100HP Double Mast Land Rig TOI 480 Specification

• 1100 horsepower
• 480,000# holdback capacity
• 80,000# pulldown capacity
• 65’ x 40’ drill footprint
• 16′ Substructure
• 13 5/8 5k psi BOP
• 12 Trailer Load
• Four Man Crew

Key Features of 1100HP Double Mast Land Rig TOI 480

• Integrated : Tophead(not topdrive), Pulldown and Iron Roughneck
• No Collars for WOB
• Computer Controlled Rig
• No Drawworks
• No Topdrives
• Capable of 14,000 Feet TVD or TMD
• Automatic Mitigation of Fault Conditions with minimal loss of functionality
• Self-reporting Diagnostics

Advantages of 1100HP Double Mast Land Rig TOI 480

• Pulldown capability allows rig to drill at shallow depths without the use of drill collars
• Small footprint makes the rig suitable for drilling in remote areas and confined spaces
• 1100HP Double Mast Land Rig TOI 480 is equipped with automatic driller and slider systems
• 1100HP Double Mast Land Rig TOI 480 parameters can be monitored remotely via the internet
• Remote diagnostics capabilities allow an engineer to detect potential issues and adjust rig performance through an encrypted remote front panel interface
• Rig up or down can be achieved w/o the use of a crane in less than 2 days
• 1100HP Double Mast Land Rig TOI 480 is capable of tripping 1,200 ft of drill pipe per hour
• Unique single-grab iron roughneck can be controlled inside driller console or by a wireless remote control
• Make-up torque can be set via the iron roughneck wireless remote control and logged to a computer
• Weight On Bit is acquired by load cells located on the top drive
• Fire suppression can be remotely activated at several locations including in the hydraulic power pack and in the driller console
• Flexible design allows the rig to continue drilling in the event of an engine or hydraulic pump failure.

The Oilfield Equipment related post 1100HP Double Mast Land Rig TOI 480 Used is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

GE 752 DC Shunt Motor Used [AE]

Equipment Name: GE 752 DC Shunt Motor (Used)
Equipment Location: India

GE 752 DC Shunt Information

Manufacturer: General Electric
Model: GE752
Type of Motor: Shunt
Rated HP: 1000HP
Rated Voltage: 750 V DC
Rated Current: 1185 Amps
RPM: 1040rpm
Bearing Drive End: 558830C
Bearing Non Drive End: 558320C

GE 752 DC Shunt Motor Operation

Standard Torque Horizontal DC Drilling Motor, single shaft, shunt wound, left hand leads facing non-drive end. Thousands of original GE 752 DC Shunt Motors are performing worldwide on all types of drill rigs, providing dependable operations of the rig’s primary equipment. The GE 752 DC Shunt Motor have been reported by rig operators to run for years without service or failure.

GE 752 DC Shunt Motor operate on direct current. As such, the field windings and armature are connected in a parallel combination, and in electrical terminology a parallel combination is known as a shunt. This type of motor is a “shunt-wound” DC Motor and the type of winding is called a shunt winding.

In electrical terminology, a parallel circuit is often referred to as a shunt. Hence, DC motors in which the armature and field windings are connected in parallel are referred to as DC shunt motors. The variations in construction between series-wound DC motors and DC shunt motors result in some differences in operation between the two types, but the most significant difference lies in their speed characteristics. Where a series-wound DC motor exhibits a direct, inverse relationship between load and speed, a DC shunt motor is able to maintain a constant speed, regardless of the load on the motor.

When electric voltage is supplied to the GE 752 DC Shunt Motor, due to high resistance of the shunt winding, it draws very low current. The higher number of turns of the shunt winding helps in generating a strong magnetic field. The armature draws high current, thus also generating a high magnetic field. The motor starts rotating as the magnetic field of the armature and shunt winding interact. As the magnetic fields grow stronger, rotational torque will increase, thus resulting in an increase of rotational speed of the motor.

GE 752 DC Shunt Motor Advantages

• A GE 752 DC Shunt Motor has its armature and field in parallel or it may have separate field and armature supplies. In either case, this type of motor has good speed regulation (5% to 10%) and is capable of delivering 300 percent of its full load torque for a very short period of time.
• Lower price than a brand new motor

GE 752 DC Shunt Motor Speed Control

One can control the speed of a DC shunt motor in two ways:

• By varying the current supplied to the stator
• By varying the current supplied to the rotor

As the voltage around the rotor and stator is the same, the speed of the motor can be controlled by controlling the current through the stator or rotor. The current through the stator and rotor branches can be controlled by varying their resistance or by using a silicon controlled rectifier. The resistance can be increased in the shunt winding and armature branch by placing a rheostat in series. As the armature handles much higher current than the field winding, so the rheostat for controlling current in the armature branch is quite large. This is why having the current controlling rheostat in the field winding is generally preferred.

Shunt field current can change the speed of the motor by 10-20%. As the current through the shunt winding increases, the speed of the rotor increases, thus yielding higher back EMF to maintain the equivalent decrease in current of armature. Conversely, by decreasing the current through the shunt winding, the speed of the motor can be decreased.

Speed of the GE 752 DC Shunt Motor also decreases when the motor is operated at lower voltage than its rated voltage, but this makes it inefficient with a tendency to become overburdened and overheat. Generally, motors come with a specified rated speed in RPM and rated voltage. When a shunt DC motor functions below its full voltage, its torque is reduced. For these reasons, it is recommended not to operate the motor below its specified voltage rating.

Every motor or engine is different and there may be different requirements.  For example, some motors may have a Full-Load test performed based on their specific application or request from customer.

The Oilfield Equipment related post GE 752 DC Shunt Motor Used [AE] is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

ZPEC 2000HP Workover Rig VFD New

Equipment Name: ZPEC 2000HP Workover Rig VFD (New)
Equipment Location: Shandong, China (Shengli Oil Field)
Size: 2000HP
Manufacturer: ZPEC
Manufacture Date: 2017

ZPEC 2000HP Workover Rig VFD possess excellent driving properties in desert, mountain and other impassable terrains. Their exceptional mobility, stability, and ease of operation are the outcome of our extensive experience in the design and production of mobile drilling rigs. ZPEC 2000HP Workover Rig VFD is real workhorses, perfectly adapted to operate in even the roughest environments.

ZPEC 2000HP Workover Rig VFD is used in the heaviest application, such as complete well work-over operations, whereby a well is killed (production stopped) and tubing and completion equipment is removed. A Workover Rig is similar to a hoist or a telescoping tower secured with wires, that allows pipe and down-hole equipment to be run into and out of a well.

VFD rigs help advanced drilling technologies such as pad drilling, horizontal drilling and directional drilling. ZPEC VFD rigs come with high level of automation that involves automated drilling pipe handling, drill pipe connection and auto drilling.

ZPEC 2000HP Workover Rig VFD Features:

• Professional testing devices to ensure safety and reliability of rigs
• Mast design & fabrication conforms to API 4F Spec, passing finite-element analysis and stress test
• The main drum is Lebus grooved. The main brake utilizes band brake or hydraulic disc brake, and the auxiliary brake utilizes pneumatic water-cooling disc brake, pneumatic clamp brake, water brake, electromagnetism eddy brake, etc. The bailing drum can be equipped optionally
• Chassis driven via power take-off box from truck engine, adopting excellent off-road heavy-duty wide axle, high strength beams, low section tire, hydraulic steering gear, dual brake system. It can adapt to complicated oilfield condition with longer service life
• Power system utilizes international famous engines and hydraulic transmission box
• The rig is designed and manufactured in compliance with API standard, and it can operates under the temperature ranging from -35℃ to +50℃
• Conforming to HSE regulations.

The Oilfield Equipment related post ZPEC 2000HP Workover Rig VFD New is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

NOV FC-1600 Triplex Mud Pump Used [AE]

Equipment Name: NOV FC-1600 Triplex Mud Pump (Used)
Equipment Location: India
Manufacturer:  NOV

NOV FC-1600 Triplex Mud Pump

The NOV FC-1600 Triplex Mud Pump is made of rugged Fabriform construction and designed for optimum performance under extreme drilling conditions. It is compact and occupies less space, yet delivers unequaled performance. The pumps are backed by several decades of design and manufacturing experience, and are considered leaders in the field.

NOV FC-1600 Triplex Mud Pump Features and Benefits

NOV FC-1600 Triplex Mud Pump is conservatively rated at relatively low rpm. This reduces the number of load reversals in heavily stressed components and increases the life of the fluid end parts through conservative speeds and valve operation.

The NOV FC-1600 Triplex Mud Pump design provides an inherently balanced assembly. No additional counterbalancing is required for smooth operation. No inertia forces are transmitted to the pumps’ mountings.

A Triplex Mud Pump sometimes referred to as a drilling mud pump or mud drilling pump. NOV FC-1600 Triplex Mud Pump is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to 7,500 psi) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling.

The Oilfield Equipment related post NOV FC-1600 Triplex Mud Pump Used [AE] is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

Varco TDS-9SA Top Drive [AE]

Equipment Name: Varco Top Drive (Used)
Equipment Location: India

Varco TDS-9SA Top Drive Specification

Brand: Varco
Model: TDS 9SA
Hoisting capacity: 400 ton

Varco TDS-9SA Top Drive Advantages

• Varco TDS-9SA Top Drive is the first top drive to use twin motors, this 2 × 350 hp unit prepared the path for the success of the TDS-10SA.
• It is equipped with a valve to dial, remote control operated, which decreases the loss and leakage of drilling mud when the reviews coming out or is disconnected after driving over the rig floor.
• In the well control operations, with the top drive shaft increases security by reducing wear on the blowout preventer (BOP) to allow the seal around a round tube rather than around a quadrant or hexagonal kelly. We can connect to the drill pipe at any level of the tower to circulate the drilling fluids.
• Varco TDS-9SA Top Drive reduces the time for those functions that are not drilling. Most of the time remains drilling. Less time on the connections, taking directional records, travel, reviewing, etc.
• Minimize risk and total drilling costs by minimizing the problems of differential sticking Grips and packaging. The cost of downhole tools that may be lost in the well are high.
• Varco TDS-9SA Top Drive is a more secure and easier to implement, simultaneously, torsion and tension that is required in point operations free and loosened the string.
• Allows rotation and movement immediately when problems are found in the hole.
• The lift can be operated hydraulically to move toward the staple, and so we can maneuver the drill pipe and Drill Collars safely, this reduces the risks in handling the pipe.
• Applies the back reaming without limitations. This maneuver with kelly and wedges present a hazard to personnel maneuvering tools.
• If wellbore stability allows, we can make connections in the background during directional drilling, eliminating the need to re-orient the directional tool face after each new connection.

The Oilfield Equipment related post Varco TDS-9SA Top Drive [AE] is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

Caterpillar 3516 Marine Propulsion Engine [AM]

Equipment Name: Caterpillar 3516 Marine Propulsion Engine
Equipment Location: India

Caterpillar 3516 Marine Propulsion Engine Information

• Manufacturer: Caterpillar
• Model Number: Cat 3516
• Serial Number: S2X01133/30
• Power Rating: 1920 KW @ 1600 RPM

Caterpillar 3516 Marine Propulsion Engine Benefits

Caterpillar 3516 Marine Propulsion Engine provides extensive power, propulsion and asset intelligence solutions for the worldwide marine industry in high and medium speed applications. The Cat 3516 Marine Engine Series Provides Lower Emissions with More Power.

Long-term durability, high fuel efficiency, simplified service, and long-life-to-overhaul – Caterpillar 3516 Marine Propulsion Engine provide maximum productivity with minimum outlay.

Engine uptime is critical for you, your crew, your customers and your main concern. That’s why Cat and MaK propulsion engines power your vessel to any port. The industry’s largest range of engines provide the reliability you require. Caterpillar Marine Power Systems guarantee that you have an engine on board that will work as hard as you do.

A Rating (unrestricted continuous)

For vessels operating at 100% rated load and appraised speed without interruption or load cycling.
Normal applications include tugboats, freighters and bottom trawlers.

Heavy Duty B ratings

For vessels working at up to 80% rated load and rated speed with some load cycling (40% to 80% load factor).
Basic applications may include mid-water trawlers, crew boats, ferries, towboats and supply boats. Typical operation ranges from 3000 to 5000 hours each year.

Intermittent Duty D Ratings

For vessels working at rated load and rated speed up to 16% of the time (up to 50% load factor).
Normal applications include offshore patrol boats, police boats, some fishing vessels, fire boats, or harbor tugboats. Regular activity ranges from 1000 to 3000 hours per year.

The Oilfield Equipment related post Caterpillar 3516 Marine Propulsion Engine [AM] is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

Tesco ECI 650T Top Drive Used [AE]

Equipment Name: Tesco ECI 650T Top Drive (Used)
Equipment Location: India

Tesco ECI 650T Top Drive Specification

Brand: Tesco
Model: ECI 650T
Serial Number: 303
Load Capacity: 650 Tons
Motor Power: 900 HP (Dual 450 HP DC motors)
Max Drilling Torque: 36,700 ft/lbs
Make-up Torque: 45,000 ft/lbs
Breakout Torque: 56,000 ft/lbs
Max Speed: 193 rpm

Tesco ECI 650T Top Drive – Electric Top Drive

Compact top drive that fits into any triple masts. Rated at either 500 or 650 tons and powered by two 450 hp AC motors.

Tesco 650T top drive is modular, high performance electric top drives built for demanding drilling applications and are compact enough to fit into any triple mast. In the ECI(S) 900, traditional induction motors have been replaced with two liquid-cooled, magnet-synchronous motors which are capable of delivering up to 450HP each.

Tesco’s electric top drive systems utilize late-generation alternating current technology and use a permanent magnet motor and a computerized control system. This non-sparking, lightweight, Tesco ECI 650T electric top drive represents a significant technological advancement over more conventional electric top drives.

The complete system including the top drive, torque system and power unit can be installed within one day, typically with no rig modifications necessary. A double ball mud saver is also incorporated into the framework’s structure.

The Tesco ECI 650T top drive’s unique design integrates the gearbox and pipe handling spool resulting in a very compact unit. It also incorporates a programmable logic control which improves communications between the drive system and the driller’s panel, optimizes efficiency and provides important safety interlocks.

Tesco ECI 650T Top Drive Features

• Permanent Magnet Motor Technology
• Ideal For Heli-Transport Solutions
• Lightest Weight In 500/650T Class
• Compatible With Existing Swivel
• Dolly System Integrations
• New eDrive Maximizes Operating Performance
• 1350 HP Option
• Offshore Capable

Tesco ECI 650T Top Drive Advantages

• low maintenance
• improved performance efficiency
• higher torque capacity
• more environmentally friendly
• Quickly and easily, use the same top drive on multiple drilling rigs

Electric top drives use the power of the existing rig generator to perform the necessary tasks required for drilling applications.

The Oilfield Equipment related post Tesco ECI 650T Top Drive Used [AE] is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.

Skytop Brewster N-95 1500 HP Drilling Rig

Equipment Name: Skytop Brewster N-95 1500 HP Drilling Rig (Training Rig Like New)
Manufacturer: Skytop Brewster
Size: 1500 HP
Manufacture Date: 2014

Skytop Brewster N-95 1500 HP Drilling Rig Description:

Skytop Brewster N-95 1500 HP Drilling Training Rig is in Excellent Condition and look like new.

SKYTOP-BREWSTER N-95 1500HP S/D Drawworks p/b (2) 1000HP Traction Motors
DRILLMEC 152’H 1,000,000#SHL Cantilever Mast
DRILLMEC 25’H Box-On-Box Substructure
McKISSICK 350-Ton Block/Hook Combo
SKYTOP-BREWSTER SZX 400-Ton Swivel
SENTRY 27-1/2” Rotary Table
(2) OILWELL LPT17 1700HP Triplex Pumps EA p/b 1000HP Traction Motor
1000-Bbl 2-Tank Mud System w/Solids Control Equip, Mixing Tank
SHAFFER 11” 5000# Annular & Double BOPs
Asst’d Handling Tools & Auxiliary Equipment

Skytop Brewster N-95 1500 HP Drilling Rig Detailed Inventory:

SKYTOP-BREWSTER N-95 1500HP Drawworks, LEBUS Grooved f/1-1/2” Line, PARKERSBURG PC56090-R 60” Brake, Air Driller Console, (2) Catheads, p/b (2) GE 1000 HP Traction Motors

DRILLMEC 152’H 1,000,000#SHL Cantilever Mast w/7-Sheave Crown Block, 4” Standpipe,Racking Board, Ladder, Fall Arrest Device, Rig Lights

DRILLMEC 25’H x 52’L Split Level Box-Type Substructure w/Deadline Anchor, (2) Air Receiver Tanks, (2) I. RAND FA5A-LXK1/ FA5A-05025C Air Hoists, (1) I. RAND FFA50K Air Hoist, Rig Lights, Stairs, Handrails, V-Door Ramp, Catwalk, Brake Water System, Brake Water Tank

McKISSICK 350-Ton Block/Hook Combo w/(5) 48” Sheaves, Grooved f/1-1/2” Line, Set of 4” x 96”L 350-Ton Elevator Links, WEB WILSON 250-Ton 5-1/2” CL Elevator

SKYTOP-BREWSTER SZX 400-Ton Swivel w/Kelly Spinner, BAASH ROSS JOY 1TP6 Square Kelly Bushing

SENTRY 27-1/2” x 53-1/4” Rotary Table w/Split Master Bushing

(2) OILWELL LPT17 1700HP Triplex Mud Pumps EA w/Forged Steel Fluid End & Quick Change Caps, HYDRIL Pulsation Dampener, OTECO 3” Relief Valve, EA p/b (2) 1000HP Traction Motors, Skidded

(2) 1000-Bbl Mud Tanks w/(5) 10HP Mud Agitators, MI SWACO Mongoose Pro Linear Motion Shale Shaker, MI SWACO MD-2 Linear Motion Shale Shaker, Mud Hopper, (2) Wash Vats, (1) Acid Vat

ATCO 10’W x 21’L Toolpusher’s House/Office w/Built-In Desk, Executive Chairs, File Cabinet, Refrigerator, Microwave, Shower & Restroom, Storage Room, Central Air, Skidded

SHAFFER 11” 5000# Double Blowout Preventer with (4) 4” Outlets, Flanged Top & Bottom

SHAFFER 11” 5000# Annular Blowout Preventer with Flanged Top & Bottom

Approx 3,000′ of 1-1/2” Drill Line on Air Powered Drill Line Spooler with Stand

Handling Tools & Auxiliary Equipment Including: OILWELL 3” to 5-1/2” Hyd Pipe Spinner • HT-55 Rotary Tongs • VARCO 5” SDXL Slips • (2) VARCO 11-Seg DCS Slips •(4) Sets Type-C Safety Clamps • Type E Weight Indicator • (2) Bug Blowers p/b 5 HP Elec Motors

Top Drive: 2010 Canrig Top Drive 500 Ton

The Oilfield Equipment related post Skytop Brewster N-95 1500 HP Drilling Rig is from Flowtech Energy. Looking for Oilfield Equipment including New, Used, Remanufactured and Surplus Oilfield Supply, check out our inventory or call our toll free number at 877-645-6693 for more information.