Subsurface Safety Valve Used in Oilfield

Our CS Sand Control Packer, Wireline Retrievable Safety Valve, Seal Bore Extension have long service life and strong market competitiveness, which is a model of quality import and price localization. We respect individuals, give full play to the initiative of employees, and regard them as close partners of the company. We put talents in the height of the company's strategic development to grasp, and provide a wide space for outstanding talents to realize their personal value. We implement fine management, lay emphasis on quality, and perform exquisite job in details.

TFCW Tubing Retrievable Safety Valve

The RuiFeng's model “TFCW” tubing-retrievable safety valve is a flapper-type, hydraulically operated TRSV installed in the production string. It is designed to shut in a well in case of an uncontrolled surface or subsurface event. The valve is held open by the hydraulic control pressure and remain open until the control pressure is released. The robust hydraulic piston provides a reliable control system and isolate the inner critical part from the well fluid. RuiFeng TFCW TRSV utilizes a metal-to-metal body joint and metal to metal flapper & seat to provide a superior well containment.

An optional self-equalizing feature allow the pressure drop before the flapper start to open and prevent flow directly across the critical MTM seal interface.

The RuiFeng TFCW TRSV can be permanently locked open by a lock-out tool, and establish a communication path between the TRSV hydraulic chamber and tubing string for a wireline retrievable insert valve.

Features and Benefits

● Compact and time proven design

● Minimal the number of parts increase reliability and durability

● Utilize unique hydraulic actuation

● Standard metal to metal seal body joint feature

● Spherical metal to metal seal between flapper & seat

● Isolate and protect the internal critical component of TRSV

● Big piston area and Power spring force

● Prevents well solids and debris from settling on top of the piston

● Reduce operating friction

● Minimized the number of potenial leak paths

● Self-equalizing through flapper option

● An Insert valve or flow control device can be installed

Applications

● Oil Wells

● General production or injection completions

Specification for RuiFeng TFCW Tubing-Retrievable Safety valve

Tubing Size	Valve Max. OD		Valve Pressure Rating	Lock profile and packing bore size ▪
inch	inch	mm	psi
2 3/8	3.63-3.97	92-101	5,000-10,000	Please refer to RuiFeng “Landing Nipple and Lock Mandrel” Specification for avaliable lock profile and packing bore size
2 7/8	4.56-4.91	116-125	5,000-10,000
3 1/2	5.20-5.62	132-143	5,000-10,000
4 1/2	6.62-6.97	168-177	5,000-7,500

※ Other lock profile and packing bore size availables for tubing size requested

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TFRN Tubing-Retrievable Safety valve

The RuiFeng FTRN tubing retrievable safety valves are designed with single rod-piston actuation and flapper type closure mechanism. The valve is held open by the hydraulic control pressure and remain open until the control pressure is released. The non-elastomer piston seal with back-up system are provided for better dynamic and static seal.

The FTRN TRSV body joints features reliable metal to metal seal, and the spherical metal to metal seal is also used between the flapper and seat. Additional metal to metal piston seal in full closed position is designed for minimizing the potential leak paths.

The self-equalizing feature provides an equalizing flow path around the flapper mechanism. This flow path allows the pressure drop and prevents flow directly across the critical MTM seal interface.

If necessary, the RuiFeng TFRN TRSV can be permanently locked open by a lock-out tool, and an additional communication tool can establish communicated path between the TRSV hydraulic chamber and tubing string before installing a wireline-retrievable insert valve.

Features and Benefits

● Simple compact design

● Single rod-piston actuation

● Non-elastomer dynamic piston seals

● Metal to metal piston seal in full closed position

● MTM piston seal in full opened position are available for option

● Metal to metal seal body joint

● Spherical metal to metal seal between flapper & seat

● Isolate and protect the TRSV internal critical component

● Reduce operating friction

● Allow fewer potential leak path

● An Insert valve or flow control device can be installed

Applications

● General production or injection completions

● HPHT, corrosive well, Off shore completion

Specification for RuiFeng TFRN Tubing-Retrievable Safety valve

Tubing Size	Valve Max. OD		Valve Pressure Rating ▪	Lock profile and packing bore size *
inch	inch	mm	psi
2 3/8	3.63-3.97	92-101	5,000-10,000	Please refer to RuiFeng “Landing Nipple and Lock Mandrel” Specification for avaliable lock profile and packing bore size
2 7/8	4.56-4.91	116-125	5,000-10,000
3 1/2	5.20-5.62	132-143	5,000-10,000
4 1/2	5.97	151-177	5,000-7,500

※ Other safety valves with higher pressure rating can be provided depending on requested

※ Other lock profile and packing bore size availables for tubing size requested

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TFRS Tubing Retrievable Safety valve

RuiFeng's “TFRS” TRSV is a single rod piston, curved-flapper type, tubing retrievable safety valve engineered to provide a reliable operation and long-term life in a hostile environment.

The valve utilizes the non-elastomeric single piston actuator, metal to metal body joint, a rugged flapper-closure mechanism, centralizing system to provided 100% well containment when closed. For maximum reliability, the piston mechanism incorporates static metal to metal stop seals while the piston reaches full open and full close positions. The slim line curved flapper design is utilized to optimize OD and ID of the valve for maximal production rate and smaller casing size.

An industry-standard self-equalizing feature can be added to this valve. It allows the pressure drop before the flapper start to open and prevent flow directly across the critical MTM seal interface.

The RuiFeng TFRS TRSV can be permanently locked open by a lock-out tool, meanwhile a communication path will be established between the TRSV hydraulic chamber and tubing string to control a wireline retrievable insert valve.

Features and Benefits

● Excellent gas ablity

● Enhanced non-elastomeric seal system

● Static metal to metal piston seal at full open or full close position

● Standard metal to metal seal body joint feature

● Spherical metal to metal seal between flapper & seat

● Concentric thrust bearing design, torque free for compressive spring

● Utilize wiper ring on upper flow tube

● Positive debris barrier at both ends if flow tube

● Isolate and protect the internal critical component of TRSV

● Reduce operating friction

● Minimized the number of potenial leak paths

● Internal exercise and lock-out profile

● Self-equalizing through flapper option

● An Insert valve or flow control device can be installed

Applications

● Oil and gas Wells

● General production or injection completions

● HP/HT application, corrosive well, offshore completion

Specification for RuiFeng TFRS Tubing-Retrievable Safety valve

Tubing Size	Valve Max. OD		Valve Pressure Rating	Packing Bore Size
inch	inch	mm	psi	inch
3 1/2	5.30 - 5.86	134.62 - 148.84	5,000 - 10,000	2.313 - 2.813
4 1/2	7.35 - 7.57	186.70 - 192.28	5,000 - 10,000	3.250 - 3.813
5 1/2	7.69 - 8.38	195.33 - 212.85	5,000 - 10,000	4.437 - 4.750
7	9.25 - 9.60	234.95 - 243.84	5,000 - 7,500	5.750 – 5.875

All the technical indicators of our Subsurface Safety Valve Used in Oilfield have reached the leading level in the industry and we have excellent product quality. Facing the future, our company has established the business philosophy of 'self-improvement, continuous struggle, continuous change, pursuit of excellence, based on China, prosperous world'. With the spirit of 'high quality is our company's life; good reputation is our root', we sincerely hope to cooperate with customers from at home and abroad and hope to build a good relationship with you.

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