Revata Engineering

Bhosari, Pune, Maharashtra

Revata Engineering's 1" and 1.1/2" Wireline Retrievable Dummy Valves are manufactured to meet the requirements of API 11V1 specifications. They are installed in side pocket mandrels as a non-equalizing isolation tool. The Wireline Retrievable Dummy Valve is an isolation tool designed to blank communication between the tubing and casing. This valve can be used to blank off a side pocket mandrel.

The Dummy Valve is available in either Stainless Steel or Nickel alloys for corrosion resistance in wells with high concentrations of H2S and CO2. Packing for the valve is available for standard service or special service to suit individual well conditions.

The distance between the packing stacks is maximized to fully protect the mandrel pocket seal bores from produced fluids until they are removed from the completion. The simple design of the dummy valve allows for easy replacement of the packing and for rapid low-cost repair of its components. The rugged, solid construction and quality metals provide for a long service life.

The Dummy Valve uses BK-2 Latch. It has two sets of packing which straddle and pack off the casing in a side pocket mandrel. Communication between the tubing and casing is positively blanked off until the Dummy Valve is removed from the pocket by standard wireline procedures

FEATURES & BENEFITS:

Standard construction is stainless steel, with monel or other premium materials optional.

Wireline retrievable by standard methods.

Use standard top latches.Temperature rating of 250F (121C) (Standard Service)Maximized packing separation for complete seal bore protection in the mandrel pocket.Standard Neoprene packing with other materials available.Compatible with other manufacturers side pocket mandrels.

APPLICATIONS:

To blank off the tubing while completing the well / prior to pressurizing the tubing to set a hydraulic set packer.

To blank off the tubing for production until gas lift valves are required.

To allow the tubing to be pressurized in various situations.To isolate the tubing and casing during single alternative production sequences.To isolate tubing and casing flow for test purposes during multi-point water flood or gas injection modes.Allow for production prior to installation of the Gas Lift Valves

Isolate tubing from casing annulus during remedial work such as acidizing or fracturing.

Revata Engineering's Tubing Retrievable Injection Pressure Operated Gas Lift Valve are primarily controlled by injection gas pressure. The valve, when installed on outside mount tubing retrievable mandrels, is used to control gas pressure and its flow from the annulus into the tubing.

The valve is designed with a sealed chamber, including a three-ply bellows assembly that contains a nitrogen precharge, which provides the closing force of the valve. When injection gas pressure exceeds the closing force, the bellows compresses, thus lifting a valve stem off a seat allowing gas to be injected through the valve.

These valves are 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.

Please refer to our SPARES FOR GASLIFT VALVES for more details on spares available for Gas Lift Valve repair and maintenance.

FEATURES & BENIFITS:

Our WLR IPO Gas Lift Valves are available in Stainless steel or premium materials.

The Gas Lift Valves use Three-ply Monel 400 bellows.

The Bellows connections are Silver Brazed.

Mechanical stop feature prevents the bellows overstroke.

A viscous Silicone based fluid is used to create a fluid shear which dampens the bellows preventing damage to it as well as preventing pounding of the stem to the seat.

Tungsten carbide balls ensure long lasting operation.

The replaceable floating Monel 400 seats. Tungsten Carbide seats are available upon request.

Optional reverse flow check valve.

Pressure rating up to 1, 800 psi (124 bars) test rack open.

Temperature rating of 250F (121C) (Standard Service)

Compatible with other manufacturers of side pocket mandrels.

Revata Engineering manufactures packer elements from special elastomer / rubber compounds using cutting edge molding methods. The Packer Element compound must be able to withstand very hostile environments and produce the required isolation in Oil wells. When Packer Elements are manufactured with the right materials and installed properly, the tools should perform at its best. The Packer Elements manufactured by Revata Engineering often stay in Oil Wells for long periods of service and after they are retrived, they look as if they could still function for a few more days.

Revata Engineering Packer Elements are proven to give the desired results when they are inserted on packers and put into the most hostile well environments. With Revata Engineering Packer Elements, the operation of tools in the Well becomes worry free.

Revata Engineering manufactures packer and other components to fit most manufactures packers, bridge plugs, tubing anchors etc. Some of the OEM companies include ARROW, BAKER, ELDER, GUIBERSON, HALLIBURTON and others. Contact us for more detailed information on our Packer Elements

Revata Engineering manuafcturers reliable high impact resistant bumper rings / spacer rings for Drill-Pipes, Tubings and Casings.

The Tubular Protection Bumper Rings are used:To prevent contact between two pipes during Transportation, Handling and Storing operations.To prevent corrosion and damage caused by the pipe surface coming into contact during Handling, Storage or Transportation.

Revata Engineering has developed a special blend of compound that maintains their strength and rigidity even under heavy handling and storage conditions. The easy to install and safe to use Bumper Rings are a cost effective means of preventing any pipe to pipe contact thus eliminating damage or corrosion.

Our R&D team constantly gathers end-user feedbacks and conducts various tests to improve the designs as well as to ensure that the products are manufactured as per high quality and perfomance standards.

Ring Joint Gaskets are designed to seal by "initial line contact" or wedging action between the mating flange and the gasket. By applying pressure on the seal interface through bolt force, the softer metal of the gasket flows into the micro-fine structure of the harder flange material, creating a very tight and efficient seal.

Revata Engineering's Ring Joint Gaskets are manufactured in accordance with API-6A and ASME B16.20 specifications and come in four basic types :

R (Octagonal Type) Ring Joint Gasket

RX Style Ring Joint Gasket

BX Style Ring Joint Gasket

These basic shapes of the Ring Joint Gaskets are used in a variety of applications with pressures up to 20, 000 PSI. The dimensions are standardized and require specially grooved flanges by where a corresponding "R" or "BX" number is assigned for pipe size and pressure class for gasket identification.

To ensure cost effectiveness and reliability, Revata Engineerings's CNC automation and state-of-the-art Quality Assurance systems provide reliable benchmarks for our on-going quality control operations.

Revata Engineering manufactures Tungsten Carbide Seats in a wide variety of configurations and specifications for use in wear, corrosive and erosive conditions.

The seats that we ship have a finished port area and is pressure tested so that a positive ball/seat seal is achieved. Our Quality Check and control department ensures defect-free finished seats thus reducing installation time to the customers.

We manufacture seats for standard 1" Valves in port sizes from 1/8 upto 3/8.We manufacture seats for standard 1 1/2 in port sizes from 1/8 upto 1/2.

We manufacture custom made seats as per your specific drawings and material specifications.
These Tungsten Carbide Seats are used for various Oil Field Equipment and Oilfield Valves such as Conventional Gas Lift Valves, Wireline Retrivable (WLR) Injection Pressure Operated (IPO) Gas Lift Valves etc.

Revata Engineering's 1" and 1.1/2" Wireline Retrievable Orifice Valves are used to control gas or fluid flow from either the annulus or tubing based on the porting of the side pocket mandrel. Orifice valves are used where pressure control is not necessary.

The valve is designed with a square edge orifice which, when properly sizes allows volume control when the casing and tubing pressures are known. An integral reverse flow check valve prevents reverse flow communication back through the valve.

These valves are available in either Stainless Steel or Nickel alloys 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 simple design of the orifice valve allows for easy replacement of the packing and for rapid low-cost repair of components. The rugged, solid construction and quality materials provide for long service life.

FEATURES & BENEFITS:

Stainless steel or premium materials available.

Replaceable floating square edged orifice (Tungsten Carbide inserts are also available)

Flow capacity determined by orifice sizing.Integral reverse flow check valve prevents reverse flow communication.Temperature rating of 250F (121C) (Standard Service)Standard Neoprene packing with other materials available.Compatible with other manufacturers side pocket mandrels.

APPLICATIONS:

The Wireline Retrievable Orifice Valves are used to establish communication between the tubing and annulus during circulating, gas or fluid injection operations. They are utilized in single point injection continuous flow completions. These valves have no closing function and are commonly used to control stable injection at the operating valve depth.

Revata Engineering manufactures a wide range of Packer Cups and replacement Packer Cups for the leading Packer Cup manufactures. These Packer Cups are developed to perform in varying well conditions and provide maximum durability and sealability in the toughest of oilfield conditions.

We manufacture both Wire Skeleton / Wire Mesh / Wire Frame Packer Cups and Rubber Packer Cups without any mesh.

The Packer Cups are made of strong, flexible spring steel reinforcing wires instead of an alloy steel base. This forms the "skeleton" for the tough body of the special elastomer compound that is specifically developed for oilfield applications where they are used in deep, heavy duty, harsh environment service.

Our Packer Cups are available in various sizes right from a 1-1/4" tubing through a 7" casing and more. Specific sizes / designs can be developed based on your requirements.

Our Packer Cups are:Able to sustain High Pressure and High Temperature.Are proven in reliability.Available in a wide range of sizes.Pressure Tested for your requirements and at temperatures of 150C (302F)Tested for 30 cycles.Cups up to 30 can be supplied.

Revata Engineering's Packer Cups are made from special oil, gas and abrasion resistant compounds that withstand high wear and tear even under extreme pressure and operating conditions.

Please contact us for more information on our Swab Cups, Packer Cups, Packer Elements or any of our other products.

Revata Engineering manufactures multiple-lip (chevron) Seals or Vee Packings that consist of a group of endless rings and are usually used for sealing rods, pistons, plungers in hydraulic cylinders and hydraulic presses. V-Packings are used for low or high pressure applications with Single or Double acting cylinder.

V-Packings are also used in various Oilfield Downhole equipment such as various Valves etc. V-Packings are extremely suitable for usage in medium to heavy duty applications. Vee Packings accept low and high pressure while operating in the most extreme conditions and also if there exists any misalignment between the sealing gaps.

The hinge-line action of Vee-Packings that enables immediate reaction even to minor pressure changes is very distinctive and exclusive to a Vee-Packing design. Each individual lip of a Vee-Packing set reacts independently to pressure thus effecting aseal automatically. In case of multiple lip configurations, pressure is automatically distributed thus effecting a seal along the shaft. Vee-Packings also premit automatic reaction to shocks from high pressure and overloads.

The Vee-Packing is a combination of Base Seal, the Vee-Ring at the center and the Pressure ring. The Vee-Ring is the main seal that can retain high and low pressures while the base seal supports the center ring from getting extruded during high pressure applications. The Pressure Ring helps in retaining the Vee Packing profile and distributing pressure equally.

We stock a wide range of Vee Packing along with their Male and Female Adapters to suit various customer requirements.

Some of the standard materials in which Vee Packings are available are:Graphite, Moly, Glass filled PTFE V-PackingFilled PTFE (Filled with Glass, Graphite, Carbon, Moly etc) V-PackingHomogeneous NBR 90 Shore A V-PackingNBR Vee-Packings with Fabric reinforcement V-Packing.Viton V-Packing.Aflas V-Packing.

The right material for the Vee Packings is selected based on various factors some of which are:Operating PressureOperating TemperatureTpe of Gases or Fluids within operating medium etc.

Normally Fabric Vee Packings are used for High Pressure applications while Homogeneous Vee Packings are used for Low Pressure applications.

Installation:A properly installed Vee Packing set will usually provide better results compared to other lip-type seals. Each Set contains a nmber of Vee-Rings based upon the pressure plus male and female adapters.

The Vee-Rings in each set are referred to as Pressure Rings.

Properly installed Vee Packings will generally outperform other lip-type seals. They are always installed in sets. Each set contains a number of V-Rings (based upon the pressure) plus male and female adapters. The V-Rings in each set are referred to as pressure rings.

A hammer union comprises of a thread end, a nut end and a hammer nut which, when cinched up, compresses a composite seal assembly thereby preventing leakage. The seal assembly comprises a metal insert of a size to pass into the seal groove of conventional hammer unions and a small seal acting between the insert, the thread end and the nut end. The small seal is conveniently an O-ring or a Hammer Union Seal (Lip Seal) and is of a size that is compressed when the seal assembly is inserted into the thread end of the hammer union, thereby preventing the seal assembly from falling out of the threaded end when it is inverted.

Some profiles such as Fig 2202, Fig 1004, Fig 1502, Fig 2002, Fig 602, Fig 1002 etc require a Hammer Union Lip Seal or an 'O'Ring depending on the Size of the Hammer Union.

Revata Engineering manufactures Hammer Union Seals (Lip Seals) for Standard Service in Nitrile and Fluoroelastomer for Sour Gas Service. The manufacturing process is closely monitored so as to gurantee the correct hardness and composition.

Revata Engineering also manufactures special Hammer Union Seals (Lip Seals) in materials that resist explosive decompression for safety and reliability. We manufacture compatible Hammer Union Seals for Weco Hammer Union Seals and Guiberson Hammer Union Seals.

Revata Engineering manufactures a wide range of composite seals based on customer requirements and applications from prototypes to production.

Composite seals are seals that incorporate the seal and another component in one part to help ease installation and reduce assembly costs.

Composite seals may include complicated parts such as Rubber bonded to various metals such as 316SS, 410, 4140 etc or bonded to a plastic or filler material.

Composite seals simplify your design with one part instead of two or more and provide better tolerances and eliminate the process of seal to component installation.

By molding the rubber seal directly to the mating metal or plastic components, various benifits can be achieved. Some of which are:

Design simplification by using one part instead of two or more.
Tighter tolerances thus avoiding tolerance stack-up.
Eliminating seal to component installation process thus reducing defects and related costs.

Revata Engineering Desilters are very efficient equipment employing principle of separation by centrifugal forces in removing even finer drilled solids, sand and silt particle size up to 20 microns. They are of balanced cone designed, which are manufactured in different models with minimum feed rates from 240 to 1440 GPM at 75 feet of head. Cones for the Desilter are made out of very high quality durable polyurethane materials. Feed entry angle is adopted in such a way to ensure effective removable of drilled solids, sand and silts from the drilling fluid. High performing cones made out of durable polyurethane material and other consumable spares ensures consistent productivity. 4 cones are used & they are attached to 6 or 8 manifold with 2 inlet & 2 outlet.

Revata Engineering offers very high quality and precision machined sleeved bi-metallic liners finished to relevant API dimensions. They are available for various pumps, manufactured by Oil Well, National, Gardner Denver, Omega, Ellis Williums, Bournedrill and others.