Gas Lift Applications - Web viewThe valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2

Gas Lift

At Lufkin, we offer a complete line of both conventional and side pocket gas lift systems for use in continuous and/or intermittent flow gas lift production. Each Lufkin product is manufactured and tested to the highest standards in the industry to ensure reliable performance and a longer life in higher pressures and harsh well environments.

In addition, we provide complete system design and training in the classroom as well as in the field, enabling attendees to gain knowledge of the gas lift process and translate that learning into superior results.

Lufkin’s line of gas lift systems includes:

Conventional, Concentric, and Side Pocket Mandrels (J55, L80, N80, P110, Stainless Steel)

Gas Lift Valves (injection pressure and production pressure operated)

Gas Lift Applications

From continuous flow to intermittent gas lift systems, Lufkin's highly engineered solutions offer the best performance in the harshest conditions. We manufacture and stock a full range of gas lift valves, mandrels and tools. Our experience and expertise in designing, running, and troubleshooting provide the most efficient gas lift solutions to maximize production.

Continuous Gas Lift Tubular Flow

Gas is injected continuously into the annulus. The gas travels down the annulus, regulated through a gas lift valve and into the fluid column inside the tubing in the well. The injected gas reduces the density of the fluid to a point where the reservoir pressure can push it to the production facility. This application is suited for most any well requiring artificial lift where a supply of pressurized gas is available.

Continuous Gas Lift Annular Flow

Gas is injected into the production tubing, which travels down the tubing, regulated through a gas lift valve and into the fluid column in the annulus. The injected gas reduces the density of the fluid to

a point so that maximum flow is realized from the reservoir. This application is best suited for wells that have a reservoir pressure that will support fluid to surface, have a high PI, low GLR and are tubing size limited. The larger flow area will allow higher fluid rates to be produced.

Intermittent Gas Lift

Intermittently, high volumes of gas are injected into the annulus of the well. The injected gas travels down the annulus, regulated through a large ported or pilot gas lift valve under the accumulated fluid column, which is quickly displaced to the surface. The goal is to produce the well at the actual rate that the fluid enters the wellbore from the reservoir. This application is best for wells that produce low volumes due to low BHP or low PI.

Gas Lift Chamber Lift System

Intermittently, high volumes of gas are injected into the annulus of the well. The injected gas travels down the annulus, regulated through a gas lift valve and displaces the fluid in an accumulation chamber and the tubing. The accumulation chamber allows for the capture of more fluid than tubing alone and increases the volume of liquid produced each cycle. This application is best for wells with low BHP and high PI.

Dual Well Gas Lift

Gas is injected continuously into a common annulus. The gas travels down the annulus, regulated through gas lift valves and into the fluid column inside dual tubing strings in the well. This

application is for wells that have more than one reservoir, which has to be produced independently of each other.

Gas Lift Side String Injection

Gas is injected down the side string, which runs parallel to the production tubing and communicated with the gas lift mandrel in installation. The injected gas travels down the side string, regulated through a gas lift valve and into the fluid column inside the tubing. The purpose of this application is to isolate the annulus from gas injection pressure. This application is best for wells with damaged casing and wells where gas has to be vented up the annular area.

Chemical Injection

Treatment chemicals are pumped downhole into the produced fluids of a well to control harmful deposits. A chemical injection line may be run from the chemical injection mandrel to the surface to act as a conduit for the treatment fluids. A high-pressure pump installed at the surface is used to pump the treatment fluid downhole. This application is best for preventing corrosive degradation.

Waterflood Injection

Water is pumped into the tubing. The water travels down the tubing and is regulated into each zone being flooded. With waterflood regulators, multiple zones can be flooded within a single wellbore.

Waterflood is used to maintain or increase reservoir pressure in zones that oil production has or is expected to decline.

Wireline Retrievable Products

Our portfolio of Wireline Retrievable gas lift products include:

Side Pocket Mandrels

Wireline Retrievable Valves

Wireline Retrievable Latches

Machined/Forged Pocket - Oval Body Configuration

Lufkin’s oval body mandrel configuration is designed to provide a full opening tubing drift while receiving any manufacturers' 1" or 1-1/2" O.D. gas lift valves. These mandrels feature an orienting sleeve and tool guard above the pocket area. The orienting sleeve allows you an option to use a positive orienting kickover tool to run or retrieve valves. Tool guards are in place to deflect and protect the valve latch.

Complete material and testing traceability

Mandrels are constructed of AISI 4130 or 13CR material

These mandrels are designed to run in both single and dual completions

Machined Pocket - Round Body Configuration

Lufkin’s round body mandrel configuration is designed to provide a full opening tubing drift while receiving any manufacturers' 1" or 1-1/2" O.D. gas lift valves. These mandrels feature an orienting sleeve and tool guard above the pocket area. The orienting sleeve allows you an option to use a positive orienting kickover tool to run or retrieve valves. Tool guards are in place to deflect and protect the valve latch.


Mandrels are constructed of AISI 4130, 13CR, 9CR, 718, or Incoloy 925 material

The round body mandrels are designed to be run in high-pressure well applications and slimhole

completions

Pressure ratings range from 3,300 psi to 13,500 psi (burst & collapse) depending on material and

well application

Solid Body Round Configuration

Lufkin’s solid round body mandrel configuration is designed to provide a full opening tubing drift while receiving any manufactures 1" or 1-1/2" O.D. gas lift valves. These mandrels feature an orienting sleeve and tool guard above the pocket area. The orienting sleeve allows you an option to use a positive orienting kickover tool to run or retrieve valves. Tool guards are in place to deflect and protect the valve latch.


Mandrels are constructed of AISI 4130, 13CR, 9CR, 718, or Incoloy 925 material

Solid body mandrels are designed to be used in high-pressure well applications and deepwater

completions

These mandrels are manufactured from solid bar stock material, which gives them superior strength

and corrosion resistance

The solid body configuration allows slotting for the bypass of lines and flat packs for monitoring, flow

control and chemical injection

Additional sizes are available for all standard tubing sizes

Gas Lift Design Plot

Gas lift valves are utilized to control the flow of injected gas to artificially lift the well. The spacing of the valves in the tubing is based on well parameters and determined during the well analysis and equipment design.

Lufkin offers expert advice and design to optimize the production of your well.

Submit a Well Optimization Design Data Sheet on page 35 for a complete evaluation from one of our design engineers.

Lufkin’s wireline retrievable gas lift valves are constructed from stainless steel, monel or CRA materials and come in various sizes and configurations.

Injection Pressure Operated Valves

RIPO-1.0 | RIPO-1.5 | RIPO-1.0BL

The RIPO is a wireline retrievable injection pressure operated gas lift valve that comes in 1" or 1-1/2" O.D. This valve is primarily controlled by injection gas pressure. The valve is used to control gas pressure and its flow from the casing annulus into the tubing during gas lift operations. The valve is installed in side pocket mandrels.

The valve is designed with a sealed chamber, including a bellows assembly that contains a nitrogen charge over dampening fluid. The bellows serves as an interface between the dome pressure and injection gas pressure. The dome charge provides the closing force of the valve. When injection gas

pressure exceeds the closing force, the bellows compress, lifting the valve stem off the seat, allowing gas to be injected through the valve and into the tubing.

The RIPO valve consists of a tail plug, upper packing, bellows assembly with valve core and bellows, bellows housing, stem with tungsten carbide ball, seat housing, floating seat, lower packing, lower packing retainer, and nose with reverse flow check dart with optional choke sizes. The valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2. Packing and elastomeric materials for the valve are available for standard and special service.

Features:

Stainless steel or premium materials

Three-ply monel bellows

Mechanical stop prevents bellows overstroke.

Viscous fluid shear dampening prevents bellows fatigue and stem pounding

Tungsten carbide ball and stem assembly

Replaceable floating monel seat (tungsten carbide seat available)

Integral reverse flow check valve

Silver brazed bellows connections

Compatible with other manufacturers’ side pocket mandrels

Bottom latch option available (RIPO-1.0BL)

Production Pressure Operated Valves

RPPO-1.0 | RPPO-1.5

The RPPO-1.0 wireline retrievable production pressure operated gas lift valve is a 1" O.D. valve primarily controlled by production fluid pressure. The valve is used to control gas pressure and its flow from the casing annulus into the tubing during gas lift operations. The valve is installed in side pocket mandrels.

The valve is designed with a sealed chamber, including a bellows assembly that contains an adjustable power spring. The bellows serves as an interface between the power spring and production pressure. The power spring provides the closing force of the valve. When production fluid pressure exceeds the closing force, the bellows compress, lifting the valve stem off the seat, allowing gas to be injected through the valve and into the tubing.

The RPPO-1.0 valve consists of a tail plug, dome bushing, bellows sub-assembly with bellows, power spring, adjusting screw, stem sub-assembly with tungsten carbide ball, seat housing, crossover, lower packing body, packing retainer, reverse flow check dart and nose.

The valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2. Packing and elastomeric materials for the valve are available for standard and special service.

Features:


High pressure bellows protection

Three-ply Monel bellows

Mechanical stop prevents bellows overstroke

Viscous fluid shear dampening helps prevent bellows fatigue and reduces stem pounding


Replaceable floating Monel seats (tungsten carbide seat available)




Production Pressure Operated Valves Bottom Latch

RPPO-1.0BL

The RPPO-1.0BL wireline retrievable production pressure operated gas lift valve is a bottom latch, 1" O.D. valve primarily controlled by production fluid pressure. The valve is used to control gas pressure and its flow from the casing annulus into the tubing during gas lift operations. The valve is installed in side pocket mandrels.

The valve is designed with a sealed chamber, including a bellows assembly that contains a nitrogen charge over dampening fluid. The bellows serves as an interface between the dome pressure and production fluid pressure. The dome charge provides the closing force of the valve. When production fluid pressure exceeds the closing force, the bellows compress, lifting the valve stem off the seat, allowing gas to be injected though the valve and into the tubing. The valve’s design incorporates a large area crossover seat, which allows the bellows to sense production fluid pressure during operation.

The RPPO-1.0BL valve consists of a tail plug, bellows assembly with valve core and bellows, upper packing housing, bellows housing, stem with tungsten carbide ball, seat housing (crossover), floating

tungsten carbide seat, lower packing housing, lower packing retainer ring, latch housing, latch collet, latch ring and nose with reverse flow check dart. The valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2. Packing and elastomeric materials for the valve are available for standard and special service.

Features:


High pressure bellows protection

Three ply Monel bellows

Mechanical stop prevents bellows overstroke

Viscous fluid shear dampening helps prevent bellows fatigue and reduces stem pounding


Replaceable floating Monel seats (tungsten carbide seat available)




ROV Orifice Valves

ROV-1.0 | ROV-1.5 | ROV 1.0BL | ROV-1.0HR | ROV-1.5HR

The ROV wireline retrievable orifice valve is a 1" or 1-1/2" O.D. valve used to control the flow of gas and/or fluid from the casing annulus into the tubing. The valve is installed in side pocket mandrels. The valve is designed with a square edged orifice which, when properly sized, allows volume control when the casing and tubing pressures are known. An integral reverse flow check prevents gas and or fluid from flowing from the tubing back into the casing annulus. The ROV valve consists of a flow barrel, seat housing and floating square edged orifice, lower packing retainer, and check nose with a reverse flow check drop. The valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S or CO2. Packing and elastomeric materials for the valve are available for standard service or special service to suit individual well conditions. The ROV orifice valve is available with square edged orifice sizes of 1/8" through 1/2" Lufkin’s HR series orifice has a maximum port size of 7/16" for the ROV-1.0HR and 3/4" for the ROV-1.5HR.

In operation, gas and/or fluids that are injected into the casing annulus enter through the ports in the side pocket mandrel. This gas and/or fluid then enter through the ports in the valve that is located in the flow barrel between the two sets of packing. The gas and/or fluid then flows through the seat housing and square edged orifice, past the reverse flow check drop, through the check nose and into the tubing.

Features:


Replaceable square edged orifice (Tungsten Carbide available)

Flow capacity determined by orifice sizing



Type Valve Running O.D. Port Size Type Latch Type SPM

ROV-1.0 1" 1/8" - 5/16" BK-2 All 1” Pockets

ROV-1.0 BL* 1" 1/8" - 5/16" Integral All 1” Pockets

ROV-1.0HR† 1" 1/8" - 3/8" BK-2 All 1” Pockets

ROV-1.5 1-1/2" 1/8" - 7/16" RA / RK All 1-1/2” Pockets

ROV-1.5HR† 1-1/2" 1/8" - 3/4" RA / RK All 1-1/2” Pockets

Dummy Valves

RD-1.0 | RD-1.5 | RD-1.0BL | RD-1E

The Lufkin ILS RD-1.0, RD-1.5 and RD-1.0BL dummy valves are wireline retrievable non-equalizing isolation tools designed to install in a side pocket mandrel. The RD-1.0 and RD-1.0BL dummy valves are 1" O.D. tools and are designed for industry standard 1" side pockets. The RD-1.5 is a 1-1/2" O.D. tool, which is designed to be installed in industry standard 1-1/2" side pockets. The RD dummy is a multi-purpose tool used to blank off the pocket of side pocket mandrels. This allows production operations to be carried out prior to the need for gas lift valves, allow pressurizing of the tubing or casing for setting packers, testing and treatment procedures.

The dummy consists of two packing sections, which are spaced to fit inside the upper and lower seal bores of industry standard pockets. The dummy valve is available in stainless steel and monel for corrosion resistance in wells with high concentrations of H2S or CO2. Packing materials for our dummy valves are available for standard service or special service to suit individual well conditions. The simple design of the dummy valve allows for easy replacement of the valve packing and for rapid low-cost repair of valve components. The rugged, solid construction and premium materials assure a long service life.

Features:



Bottom latch option available (RD-1.0BL)

Equalizing Dummy Latch available (RD-1E)

Type Valve Running O.D. Type Latch Type SPM

RD-1.0 1" BK-2 All 1" Pockets

RD-1.0BL* 1" Integral (Bottom) All 1" Pockets

RD-1.5 1-1/2" RA / RK All 1-1/2" Pockets

RD-1E 1" Integral All 1" Pockets

Gas Lift Latches

BK-2 | BEK-2 | RK | RKP | RA

Lufkin wireline retrievable latches are designed to secure retrievable gas lift valves and any other flow control devices, such as chemical injection valves and water flood valves, into the appropriate side pocket mandrels equipped with 1" or 1-1/2" outside diameter receiver pockets. All the running post and bodies for the BK and RK model latches are drilled and pinned.

LatchType

MaximumRunning

O.D.Porting

I.D.ValveSize

O.D.Running

Head

O.D.PullingHead

RunningTool

PullingTool

BK-2 1.358 NA 1" 0.750 0.875 JK JDC 1- 1/4"

BEK-2 1.358 0.375 1" 0.750 0.875 JK JDC 1-1/4"

RKP 1.786 0.453 1.5" 0.937 1.187 RK-1 JDS 1-5/8"

RK 1.786 NA 1.5" 0.937 1.187 RK-1 JDS 1-5/8"

RA 1.750 NA 1.5" 1.359 1.343 JC-3 JDC 2"

Integral 1.358 NA 1" 0.875 0.875 GA-2 JDC 1-1/4"

BK-2 Latch

The BK-2 latch is a spring-loaded ring type latch used to secure 1" outside diameter valves in ILS and other manufacturer mandrels.

BEK-2 Latch

The BEK-2 latch is a spring-loaded ring type latch that has a 0.360" hole through the center of the latch allowing fluids or gas to flow through. The latch is used to secure 1" outside diameter valves in ILS and other manufacturer mandrels.

RK Latch

The RK latch is a 1-1/2" version of the BK-2 latch used to secure 1-1/2" outside diameter valves in ILS and other manufacturer 1-1/2" orienting side pocket mandrels.

RKP Latch

The RKP latch is a 1-1/2" version of the BEK-2 latch incorporating a 0.454" hole through the center of the latch allowing fluids or gas to flow through. The latch is used to secure 1-1/2" outside diameter valves in ILS and other manufacturer mandrels.

RA Latch

The RA latch is a cam style latch used in 1-1/2" outside diameter non-orienting ILS or other manufacturer side pocket mandrels.

Tubing Retrievable Products

Our portfolio of Tubing Retrievable gas lift products include:

Mandrels

Conventional

Concentric

Valves

Conventional

Check Valves

Conventional Mandrels

CM-1 | CM-2

Lufkin conventional mandrels are designed to receive 1" and 1-1/2" conventional gas lift valves. These valves are mounted externally on the mandrel body. Our conventional mandrels feature external side guards to protect the gas lift valve and check. Mandrels are available in standard sizes 2-3/8", 2-7/8" and 3-1/2" in J-55, N-80, L-80 and P110 materials. We can also accommodate 4-1/2" and 5-1/2" sizes along with 13-CR material by special order.

Conventional Mandrel Dimensions

Dimensions to Inches:

A - Lug to CollarB - Lug to Collar - Special ClearanceC - Collar DiameterD - Collar Diameter - Special Clearance

CM-1 Valves1"

Valve Size2.375" O.D. 2" Nominal

2.875" O.D. 2.5" Nominal

API EUE

A - 3.783 A - 4.335

B - 3.706 B - 4.231

C - 3.063 C - 3.668

D - 2.910 D - 3.460

API NUE

A - 3.689 A - 4.251

B - 3.586 B - 4.119

C - 2.875 C - 3.500

D - 2.670 D - 3.235

CM-2 Valves1.5"

Valve Size2.375" O.D. 2" Nominal

2.875" O.D. 2.5" Nominal

3.50" O.D.3" Nominal

API EUE

A - 4.283 A - 4.835 A - 5.562

B - 4.206 B - 4.731 B - 5.427

C - 3.063 C - 3.668 C - 4.500

D - 2.910 D - 3.460 D - 4.230

API NUE

A - 4.189 A - 4.751 A - 5.262

B - 4.086 B - 4.619 B - 5.152

C - 2.875 C - 3.500 C - 4.250

D - 2.670 D - 3.235 D - 4.030

Concentric Mandrels

IM

Lufkin concentric mandrels are designed to internally install a 1" conventional valve and check. With an internally mounted gas lift valve, these do not have an internal full-bore drift. Mandrels are available in sizes 1-1/4" to 2-7/8" with L-80 Material.

SizeMandrel

MandrelMaximum

O.D.Tubing

I.D.

Internal Flow Area

sq inValveSize

ThreadType

1-1/4" 1.850" 1.380" .710 1" 10 Round NU

1-1/2" 2.200" 1.610" 1.250 1" 10 Round NU

2-3/8" 2.875" 1.995" 2.237 1" 10 Round NU

2-3/8" 3.062" 1.995" 2.237 1" 8 Round NU

2-7/8" 3.500" 2.441" 3.791 1" 10 Round NU

2-7/8" 3.668" 2.441" 3.791 1" 8 Round NU

3-1/2" 4.500" 2.993" 6.146 1" 8 Round NU

Conventional Valves

CIPO-1.0 | CIPO-1.5

The CIPO is a conventional (tubing retrievable) injection pressure operated gas lift valve that comes in 1" or 1-1/2" O.D. This valve is primarily controlled by injection gas pressure. The valve is used to control gas pressure and its flow from the casing annulus into the tubing during gas lift operations. The valve is installed on a conventional mandrel.

The valve is designed with a sealed chamber, including a bellows assembly that contains a nitrogen charge over damping fluid. The bellows serves as an interface between the dome pressure and injection gas pressure. The dome charge provides the closing force of the valve. When injection gas pressure exceeds the closing force, the bellows compress, lifting the valve stem off of the seat, allowing gas to be injected through the valve and into the tubing.

The CIPO valve consists of a tail plug, bellows assembly with valve core and bellows, bellows housing, stem with tungsten carbide ball, seat housing, floating seat and nose with reverse flow check dart with optional choke sizes. The valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2. Elastomeric material for the valve is available for standard and special service.

Features:

Stainless steel or premium material

Three-ply monel bellows

Mechanical stop prevents bellows over stoke.

Viscous fluid shear dampening prevents bellow fatigue and stem pounding


Replaceable floating monel seat (also available in tungsten carbide material)

Silver brazed bellows connection

ValveType

ValveO.D.

Ab EffectiveBellows Area

(sq in)PortSize

ApArea of

PortAp/Ab

R1-(Ap/Ab)

(1-R)

PPEF†Ap/Ab

1-(Ap/Ab)

CIPO-.625 5/8" .12

1/8" .012 .100 .900 .111

5/32" .015 .158 .842 .187

3/16" .027 .225 .775 .362

CIPO-1 CIPO-1RF‡ 1" 0.31

1/8" .013 .040 .960 .041

5/32" .019 .061 .939 .065

3/16" .028 .091 .910 .099

1/4" .049 .158 .842 .188

5/16" .076 .245 .755 .325

CIPO - 1.5 1-1/2" 0.77

3/16" .029 .038 .962 .040

1/4" .051 .067 .933 .072

5/16" .079 .104 .896 .116

3/8" .113 .148 .852 .174

7/16" .154 .201 .799 .252

†PPEF - Production Pressure Effect Factor. ‡ CIPO-1RF max port size is 3/16"

Check Valves

CVIPO-1.0 | CVIPO-1.5 | CVIPO-1.0RF

The CVIPO is a conventional (tubing retrievable) check valve that comes in 1" or 1-1/2" O.D. The check valve is installed externally on conventional mandrels and chemical injection subs. Reverse flow checks prevent gas and fluid flow from the tubing back into the casing annulus. In operation, the reverse flow check valve utilizes a dual seating system. A soft seal ring is contacted first by the check dart and as differential pressure increases a metal-to-metal contact acts as a secondary seal.

The CVIPO check valve consists of a check housing, seals, check dart and spring. The check is constructed of premium material for corrosion resistance in wells with high concentrations of H2S and/or CO2. Elastomeric materials for the valve are available for standard service and special service to suit individual well conditions.

Features:


5,000 psi test pressure

Nickel alloy X-750 spring

Compatible with other industry standard conventional (tubing retrievable) mandrels

CVIPO check is required when utilizing flow with a screen orifice

CVIPO-1.0RF is for use in concentric mandrels and reverse flow applications

Special Application Products

Our portfolio of Special Application products include:

Wireline Retrievable Waterflood Mandrels and Regulators

Wireline Retrievable Chemical Injection Mandrels and Valves

Packoffs

Accessories

Lateral Discharge Regulators & Mandrels

RWF-1.0

The RWF-1.0 is a wireline retrievable waterflood regulator. This regulator is designed to operate in industry standard side pocket gas lift mandrels with a 1" I.D. pocket. The regulator consists of a nose, orifice cap, spring, seat, cone and flow barrel.

Water enters the regulator through the nose, passes through the orifice cap and seat past the cone and exits laterally through the flow barrel.

The regulator is a normally open device that requires a minimum of 200 psi differential pressure to become operational. The differential pressure is required to overcome a pre-determined spring resistance that is holding the seat away from the cone. As the spring resistance is overcome the seat moves toward the cone holding the rate allowed to pass relatively constant regardless of the injection pressure.

When using an orifice valve to do the same type of operation, the injection rates will vary greatly with the changing differential pressure across the orifice. The rates will remain relatively steady through a regulator.

Features:

Available in stainless steel, monel or CRA material

Tungsten carbide cone

Easily calibrated

TypeRegulator

RunningO.D.

MinimumInjection Rate

BWPD

MaximumInjection Rate

BWPDTypeLatch

TypeSPM

RWF-1.0 1" 200 900 BK-2 Standard

RWF-1.5 1-1/2" 200 900 RK/RA Standard

RWF-1.5HR† 1-1/2" 300 2700 RKP Standard

† HR - High Rate

WF

Water flood mandrels are available in a full range of sizes and materials to meet your requirements.

Inline Regulator & Mandrels

RWF-1.0-IL

The RWF-1.0-IL is a wireline retrievable waterflood regulator. This regulator is designed to operate in industry standard waterflood configured side pocket mandrels with a 1" I.D. pocket. The regulator consists of a spring housing, orifice cap, spring, seat, cone and nose.

The flow path of the injected fluid is through a ported latch (BEK-2) into the spring housing through the orifice cap and seat, past the cone and exits through the nose.

The regulator is a normally open device that requires a minimum of 200 psi differential pressure to become operational. The differential pressure is required to overcome a pre-determined spring resistance that is holding the seat away from the cone. As the spring resistance is overcome the seat moves toward the cone holding the rate allowed to pass relatively constant regardless of the injection pressure.

When using an orifice valve to do the same type of operation, the injection rates will vary greatly with the changing differential pressure across the orifice. The rates will remain relatively steady through a regulator.

Features:

Available in stainless steel, monel or CRA material

Tungsten carbide cone

Easily calibrated

TypeRegulator

RunningO.D.

MinimumInjection Rate

BWPD

MaximumInjection Rate

BWPDTypeLatch

TypeSPM

RWF-1.0-IL 1" 80 1,250 BEK-2 WF

WF

Water flood mandrels are available in a full range of sizes and materials to meet your requirements.

Chemical Injection Valves

RCI-1

The Lufkin RCI-1 wireline retrievable chemical valve is a 1" O.D. valve used to control the amount of chemicals or fluids injected into the tubing to control corrosion in wells, treat paraffin, salt and/or hydrate formation. The valve is designed with a nickel alloy spring, which provides the closing force of the valve. The compression spring allows for setting operating differential pressures of 500 to 4,000 psi. The spring controlled test rack opening pressure is easily adjusted from outside of the valve without the need of disassembly. The spring-loaded operation of the RCI-1 valve allows accurate functioning of the valve regardless of well temperature. The RCI-1 valve is available with stem and seat size of 1/8", 3/16" and 1/4".

The RCI-1 valve consists of a seat housing, spring and spring housing, setting and locking screw, stem with tungsten carbide ball, adapter and check housing with reverse flow check dart. The valve is available in either stainless steel or nickel alloys for corrosion resistance in wells with high concentrations of H2S or CO2. Elastomeric materials for the valve are available for standard service or special service to suit individual well conditions.

In operation, the operator can control chemical/fluid flow into the tubing at valve depth. Chemical/fluid volumes, cycles and pressures can be regulated by the operator from the surface. The chemical or fluid is pumped from the surface down a capillary tube. The tube is connected to the chemical injection side pocket mandrel which communicates directly to the pocket.

The valve can also be installed in industry standard gas lift side pocket mandrels and the chemical or fluid injected into the well’s annular area. In this case the chemical or fluid enters the side pocket’s entry ports and enters the valve.

Features:

Stainless steel or premium materials available

Install or replaced using slickline and slickline standard gas lift tools.

Tungsten Carbide ball and seat for long life

Elimination of crossover seat in design decreases valve plugging and increases flow efficiency

Valve can easily be set in field locations

Integral reverse flow check valve to prevent tubing to annulus or injection line communication

Check valve has combination resilient and metal to metal seal

Nickel Alloy X 750 check valve spring

Nickel Alloy X 750 power spring

Normally closed valve held on seat with power spring and tubing pressure

Temperature rating dependent upon V-Packing and elastomeric seal selected

250ºF standard with Neoprene V-Packing.

Compatible with other manufacturers’ side pocket mandrels that have industry standard 1" pockets

meeting API 11V1 seal bore requirements.

Gas Lift Training

At Lufkin, we provide the best technical expertise in design, installation, optimization and troubleshooting. However, our work does not stop there. Training our clients about the basic operating principles of plunger lift and gas lift systems is a necessary step to ensure safe and productive operations. We provide a variety of comprehensive product training options tailored to meet your needs. Our training options are comprised of:

Lunch and learns

One-day seminars

Field training

In-house and on-site training based on production, well evaluation and operation

Practical field service

Custom programs to meet your specific needs

Additionally, we offer a more comprehensive three-day structured training program for employees and customers. This course covers the following areas:

Basic gas principles

Product mechanics and selection

Analysis

Design

Troubleshooting, applications and equipment

Calibration/testing

Gas Lift Well Design Form

Click on the image of the English unit or metric unit version of the Gas Lift Well Design Form to download it. Once it is downloaded you have two options to complete the form:

Fill out the interactive fields on the digital form.

Print out the form and fill it out by hand, or

Once the form is completed, you have two options to return it:

E-mail the competed form as an attachment to [email protected], or

Fax the completed form to 281-445-1134.

Documents

Gas Lift Applications - Web viewThe valve is constructed of premium materials for corrosion resistance in wells with high concentrations of H2S and/or CO2