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RETRIEVABLE CHECK VALVE

Zero well workovers



Revolutionizing Oil and Gas Production relying on ESP, ESPCP, LESP and Gas Lift.

Learn more

PRODUCTION ENGINEERS

fluid backflowtime and effort

PRODUCTION MANAGERS

opexkpi

OIL COMPANIES

profit

Purpose of RCV

BRING THE ARTIFICIAL LIFT EQUIPMENT INTO THE OPERATIONAL MODE WITH MINIMAL
LOSSES IN OIL AND GAS PRODUCTION, WITH NEGLIGIBLE ASSOCIATED COSTS AND RISKS



Has managed to marry all points of interest under a single product

CONVENTIONAL CHECK VALVES HERMETICITY LOSS


PROBLEMS



Resulting in the fluid-backflow associated consequences.

SAFETY HAZARD

Ten-year statistical data* shows 1,189 fatal injuries in the USA in the oil and
gas extraction industry.

REDUCED OR LOST PRODUCTION

Reduced production in the event of altered intermittent pump operation caused by
fluid backflow in the tubing string, or a multi-day loss of production during
both time and resource consuming well workover.

HIGH OPEX

High OPEX, engagement of well workover rig for pulling out of the entire
production equipment, expenses related to transport and overhaul of that
equipment, electric power costs, the reduced service life of electric
submersible pieces of equipment

ENVIRONMENTAL IMPACT

Well workover can lead to groundwater contamination due to well-kill fluid **
utilization, and air quality degradation by exhaust gases from diesel powered
rig and heavy machinery, operating 24/7, including their extensive fuel
consumption.

THE RETRIEVABLE CHECK VALVE FLUID BACKFLOW


SOLUTION



SAFETY AT WORK

Reduced number of life-threatening incidents and injuries during well workover,
involving contact with objects/equipment, exposure to harmful
environments/substances, falls, and transportation.

UNINTERRUPTED PRODUCTION

Uninterrupted oil, gas, water, and gas condensate production process with
maximum pump efficiency

+ €1.1 MILL per well

direct loss-equivalent benefit annually*

OPEX REDUCTION

Operational cost cutting is achieved through a decreased number of well
workovers, reduced accompanying equipment and personnel transport, lower
frequency of pulled out equipment overhaul, and overall electricity savings.

ENVIRONMENTAL SAFETY

By avoiding associated well workovers, we eliminate the need for fuel
consumption by workover rig, reduce exhaust gas emissions from the engines, and
eliminate the utilization of fluid required for well-kill.

THE RETRIEVABLE CHECK VALVE FLUID BACKFLOW


FLUID BACKFLOW SOLUTION



Wrangtech’s innovative approach to the crude oil and gas production process lies
in addressing the challenge of fluid backflow through ESP, ESPCP, or LESP
equipment during pump stoppage due to the failure of the conventional check
valve. The solution involves the utilization of a patented retrievable check
valve (RCV) and its seating nipple during well-workovers. This ecoaware
innovation eliminates the need for costly traditional well workovers, it
completely replaces conventional check valves, and drainage valves in ESP,
ESPCP, and LESP systems, in some cases. It leverages cross-disciplinary
expertise encompassing pump engineering, fluid dynamics, materials science, and
control systems to provide a cutting-edge product for the industry’s challenges.

Option I

The RCV and its seating nipple with thread connections for attaching to the
tubing.

Option II

The RCV equipped with the slug catcher, and its seating nipple with thread
connections for attaching to the tubing.

Learn more



ZERO WELLWORKOVER,
FLUID BACKFLOW SOLUTION,
UNINTERRUPTED PRODUCTION,
WIPO'S PATENT COOPERATION
TREATY (PCT) HOLDER


+ €1.1 MILLION

DIRECT benefit within a single year



The losses outlined below are equivalent to the benefit accrued by the oil
company through the utilization of the RCV due to the guaranteed designed
operating mode on an annual basis.


FLUID BACKFLOW

(altered operating mode)

The conspicuously nonsensical consumption of electrical energy required for the
operation of ESP equipment during the filling of the tubing string with fluid up
to the point of its production on the surface. The power consumption for 80
minutes of ESP operation, attributed to tubing filling after the fluid backflow,
costs the oil company 5.1 x €5.1 = €26 per day.

Annual Loss in
Unproduced Oil:

€1.1 million

annual loss in electricity consumption*:

€9.500

This calculation assumes that the electric motor and hydro-protector remain in
functional condition, which is unlikely since they will most likely experience
failures due to operating in a high-temperature regime, necessitating the
overhaul of downhole production equipment.

*The average price of electricity in Serbia until August 2022 is 0.12 $/kWh.
**This example should be understood as an approximate representation of the
economic loss due to the non-hermeticity of conventional (nonretrievable) check
valves, and in no way as a limiting parameter for the RCV and its performance.




JOIN THE REVOLUTION

Experience the future of O&G production with Wrangtech. Join us in embracing
innovation, efficiency, and sustainability. Together, we can redefine industry
standards and pave the way for a greener, more profitable future.


NEW TECHNICAL CAPABILITIES

to oil and gas production process


EPS

electric submersible pump


RCV REPLACEMENT

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.


BULLHEADING ACID PUMP FLUSH

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.


PUMP FLUSHING

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.


BULLHEADING THERMAL TREATMENTS OF PUMP AND TUBING

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.


INTERVAL STIMULATION

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.

ESPcp

electric submersible progressive cavity pump


RCV REPLACEMENT

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.

lESp

linear electric submersible pump


RCV REPLACEMENT

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.

GL

Gas-lift


RCV REPLACEMENT

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.


INTERVAL STIMULATION

RCV REPLACEMENT retrieves the equipment back to its operational (designed) state
in case of non-hermeticity due to the accumulation of mechanical impurities or
mechanical damage, avoiding damage to other submersible equipment, or, even,
well workover.

THE RETRIEVABLE CHECK VALVE FLUID BACKFLOW


RETRIEVABLE CHECK VALVE



Unlock unprecedented efficiency: Our eco-aware patent solution solves fluid
backflow without costly well overhauls

01

Tailored for oil and gas production (ESP, ESPCP, LESP, and GL);

03

Manufactured from corrosion-resistant stainless materials with high durability
to ensure prolonged functionality in diverse working conditions, including
corrosive gases and liquid fluids;

05

Eco-aware product that ensures pump operation in the designed, i.e. most
energy-efficient operating mode, requiring minimal electricity consumption,
thanks to the RCV’s retrievability, replaceability, and increased resistance to
hermeticity loss due to mechanical impurities.

07

Cost-efficient maintenance thanks to streamlined design and high-quality,
durable materials;

09

Designed to accommodate standard slickline and coiled tubing installation and
removal tools;

11

The slug catcher option protects the ball and its seating nipple from mechanical
impurity buildup, reducing the risk of RCV non-hermeticity or significantly
delaying its failure;


02

Designed for all well workover operations requiring check valves (activating
hydraulic packers, testing tubing string integrity, etc.);

04

Simple to maintain, it can be reused multiple times, with the requirement of
replacing seals, and, if needed, specific components due to potential mechanical
damage resulting from mishandling;

06

The flexibility to replace any RCV component in the event of damage
significantly enhances energy efficiency, both in the manufacturing process and
the maintenance of all components, keeping everything in optimal working
condition. Additionally, it is a long-lasting product with full recyclability.

08

No special workshop tools required;

10

Mechanical locking system to its seating nipple;

12

The RCV is designed with an integrated mechanism for fluid backflow management.


CUT COSTS, SAVE THE PLANET, AND ENSURE SAFETY ALL AT ONCE.

Our eco-friendly solution protects groundwater by eliminating harmful well-kill
fluids. It reduces exhaust gas emissions from 24/7 diesel-powered rigs and heavy
machinery, and cuts fuel consumption to lower costs and your carbon footprint.


THE COMPETITIVE LANDSCAPE



Comparative analysis based on check valves’ main feature: fluid-backflow
prevention

Attributes

Made for production of oil and gas

Replaceable without well workover

Can be used for well workover operations

Easy maintenance

Equiped with slug catcher

Mechanical locking system to the seating nipple

Bullheading acid pump flush

Bullheading pump flush

Bullheading thermal treatments of pump and tubing

Interval stimulation

Integrated drainage mechanism

Hardlined valve ball cage

Rubber to metal seal

Robust and hermetical metal to metal seal

Non-retrievable Check Valve







N/A









N/A

Conventional Retrievable Check Valve



N/A






N/A

N/A

N/A

N/A






Wrangtech's Retrievable Check Valve

















THE RETRIEVABLE CHECK VALVE FLUID BACKFLOW


FLOW TESTING THROUGH THE RCV



at various production rates


VALVE TEST REPORT

Effective laboratory examination of both the hermeticity and integrity of the
RCV-AG 2-7/8″ EU SST retrievable check valve at a maximum pressure of 416 bars.



Ansys Discovery

THE RETRIEVABLE CHECK VALVE FLUID BACKFLOW


CHALLENGE



BRING THE EQUIPMENT INTO OPERATIONAL MODE WITH MINIMAL LOSSES IN OIL AND GAS
PRODUCTION, WITH NEGLIGIBLE ASSOCIATED COSTS.


VALVE TEST REPORT

Effective laboratory examination of both the hermeticity and integrity of the
RCV-AG 2-7/8″ EU SST retrievable check valve at a maximum pressure of 416 bars.



Ansys Discovery

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