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Subsurface Safety and Injection Valves Subsurface Safety and Injection Valves Our experience runs deep Subsurface Safety and Injection Valves Subsurface Safety and Injection Valves Subsurface safety systems provide the As part of a production safety control system, subsur- ultimate protection against uncontrolled face safety and injection valves serve an extremely critical role, forming the final defense against uncon- flow in case of catastrophic damage trolled flow from a well. At any time, the safety valve to wellhead equipment. must operate flawlessly on demand. Through the heritage of Camco* subsurface safety valves, Schlumberger has long represented innovation and quality to the oil and gas industry. We have a proud legacy of pioneering advanced technology for safety control systems in demanding operating environments. Our wide range of safety and injection valves—based on industry-leading technologies—are built from many years of experience and expertise and play a major role in minimizing safety risks to people and petroleum reserves. Today Schlumberger continues to demon- strate innovation in safety valve technology and valve performance in ultradeepwater, high-pressure, and high-temperature environments. Consistently high levels of quality They include the following: SCHLUMBERGER FIRSTS ■ rod piston-actuation that allows faster and Since the 1940s, Schlumberger more repeatable hydraulic control and subsurface safety valves have response times set engineering and performance ■ rugged flapper closure system that with- benchmarks. Many patents have stands extreme slam closures been industry firsts and are now ■ current standards: curved flapper design that reduces the outer diameter of a valve, enabling valves with ■ tubing-retrievable valves larger inner diameters to be installed in a ■ rod-piston hydraulic actuation given casing size ■ all-metal body joints and non- ■ secondary valve capability that allows per- elastomeric seal technology manently locked-out valves to accept a secondary slickline-retrievable safety valve ■ nitrogen-charged power spring valves for ultradeep installations ■ all-metal, elastomeric, and nonelastomeric ■ redundant hydraulic control seals for wells with working pressures to systems 137.9 MPa [20,000 psi], temperatures to 204.4 degC [400 degF], and high concentra- ■ high-pressure, high-temperature tions of H S and CO valves for extreme operating 2 2 conditions. ■ gas-spring designs for extreme depths and pressures and for applications with very low surface-operating-pressure requirements with redundant control systems. Setting the bar Consistent standards across multiple state- of-the-art manufacturing facilities support our tradition of excellence. For example, all facilities are licensed by the API to apply the API monogram to 14A products—subsurface safety valves. ACCENT ON QUALITY AND RELIABILITY many years. The reliability of Schlumberger With more than 80 years of experience provid- valves provides consistent performance in Our detailed program of quality assurance and ing highly reliable products and services to managing well production in both daily opera- quality control exceeds the rigorous demands the petroleum industry, Schlumberger knows tion and catastrophic events. of the petroleum industry. The Schlumberger what it takes to sustain consistently high levels leakage-acceptance criteria is substantially Enhancing design of quality. Safety systems are perhaps the higher than those of the API and ISO. For Depth of knowledge and cumulative years most regulated component in the oil and gas example, API industry standards allow newly of experience have allowed Schlumberger industry and must satisfy strict design and manufactured subsurface safety valves a leak- experts to develop safety valve designs that quality requirements set forth by the American age rate of 5 scf/min; however, Schlumberger are highly reliable yet functional and uncom- Petroleum Institute (API) and the International standard valves are tested to a more stringent plicated. Advances in materials science, Standards Organization (ISO). requirement and have a leakage rate of only coupled with superior quality assurance, have 0.033 scf/min, which is less than 1% and 150 Subsurface safety and injection valves must also improved the reliability of our safety valve times better than the API acceptance rate. provide reliable control when emergency systems. Design of the most reliable elements conditions arise and when conditions such has been based on a thorough understanding Our in-house manufacturing controls, advanced as deep water, high pressures, high tempera- of critical operating elements, the actuating manufacturing techniques, latest precision tures, and corrosive environments increase system (hydraulic piston) and the closure machinery, and highly skilled, experienced risk. Reliable control is achieved through mechanism (flapper). personnel enable us to maintain the highest stringent engineering design and extensive levels of product quality. verification test standards developed over Designed to weather any challenge Work on subsea wells is a costly and hazardous process. Crucial to efficiency and safety are the successful installation, dependable operation, and long-term reliability of subsurface safety and injection valves. SCHLUMBERGER SAFETY VALVES TRC-II Series Pinnacle series TRC-II* series tubing-retrievable safety Pinnacle* tubing-retrievable safety Safety valves, an integral part of well completions, valves incorporate the best laboratory valves are designed for ultrahigh and field-proven technologies. They pressures and severely corrosive protect offshore and land production installations. contain a minimum of critical, dynamic, environments up to 204.4 degC Schlumberger surface-controlled subsurface and static seals. Patented gas-powered [400 degF]. They use an enhanced actuators with disconnect rod pistons premium piston sealing system safety valves use the innovative rod piston hydraulic- allow reduced operating pressures for incorporating reliable metal-to-metal actuation system developed by Schlumberger. All depths exceeding 3,658 m [12,000 ft], dynamic seals with spring-energized, ® ® so the valves can be positioned below filled Teflon sealing elements, static series contain a rugged, metal-to-metal Inconel hydrate- or paraffin-deposit regions up and down stops, and a precision flapper closure mechanism plus secondary soft seal. to increase operating efficiency. Two piston tube. They have a compact redundant hydraulic control systems flow tube nose seal to minimize the Schlumberger offers six main safety valve styles, are insensitive to production tubing intrusion of debris into the flapper and ranging from basic to the most high-tech design pressure and operate at pressures power spring systems. much lower than those required by available in the industry. conventional valves. Subsurface and Injection Valve Applications Series Standard Service Deep Water Ultradeep Water Big Bore HPHT† Cement Injection Through TRC II l l Pinnacle l SlimTech l l l l TRMAXX l l l l Reliance l Recovery l INtegrity l A l † High-pressure, high-temperature SlimTech series TRMAXX series Reliance series Recovery series SlimTech* reduced-OD tubing- TRMAXX* tubing-retrievable Reliance* cost-effective utility Recovery* slickline-retrievable retrievable safety valves are safety valves are designed with safety valves were created to fit safety valves provide industry- designed with a premium curved- a rugged flapper closure mecha- simple applications and operat- leading reliability and high value. flapper closure mechanism, nism and a minimum of critical, ing environments. Their design These valves maximize long-term allowing a fully optimized geometry static, and dynamic seals to is similar to that of the TRMAXX performance and reduce potential —a large inner diameter with ensure maximum reliability. They valve except for the single rod leak paths. They are available in reduced outer diameter. These use a premium hydraulic piston piston and standard hydraulic a range of sizes and are designed valves have a minimum of critical, sealing system with static open/ piston sealing system with Viton® to accept any manufacturer’s lock static, and dynamic seals to ensure close sealing. This series is avail- sealing elements. assemblies for convenient use as maximum reliability. They use a able with or without the flapper- a secondary insert safety valve. premium hydraulic piston sealing mounted equalizing system. The valves can also be used as system with static open/close primary protection in applications sealing. This series is available requiring a slickline-retrievable with or without the flapper- installation. This series is available mounted equalizing system. with or without the flapper-mounted equalizing system. Consistently high levels of quality SCHLUMBERGER INJECTION VALVES INtegrity series A series INtegrity* injection valves are tubing A series slickline-retrievable injection Unlike surface-controlled safety valves, subsurface- retrievable, engineered to allow a larger valves have a minimum number of inner diameter and thus increased critical, static, and dynamic seals to controlled injection valves require no hydraulic injection flow rates than conventional ensure maximum reliability. These control line to operate; they open under injection flow. injection valves, up to 70,000 bbl/d. valves accept any manufacturer’s These valves have only two body joints, lock assemblies and are available in a They are designed to prevent flowback or blowouts to ensure maximum reliability, and use range
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