electric downhole safety valve pricelist

Halliburton provides proven, high-performance tubing-retrievable and wireline-retrievable subsurface safety valves (SSSV) designed to reliably shut-in (fail safe) if a catastrophic event occurs, allowing operators to maintain safe operations.

Our downhole safety valves provide your testing operations with fail-safe sustained control downhole in the event of an emergency or to facilitate test procedures.

OSLO, Norway—Work on the next generation of all-electric subsea production systems is being advanced, albeit not swiftly, as there is a three-way competition amongst big hardware companies.

Originally developed with support from BP, Cameron—now OneSubsea, a Schlumberger company—delivered the first two all-electric christmas trees to Total for installation on the Dutch K5F Field in 2008. Technically they were not all electric, as the development of an electric downhole safety valve (e-dhsv) was slow to follow. It was not until the third tree for K5F was installed last year—which included Halliburton’s DepthStar e-dhsv— that it could described as truly all-electric.

FMC, prior to the takeover merger with Technip earlier this year, had delivered more than 200 electrically actuated valves and 38 electric subsea control modules, according to TechnipFMC’s Olav Monsson, who spoke during the Subsea Valley Conference in Oslo, Norway. The first group—16 in all—of e-actuators were supplied to Statoil for choke valves. However, either the hydraulics were problematic or the retrofit valves could not be accommodated within the existing subsea control system. The big breakthrough, though, was the delivery of nearly 80 subsea valves with electric actuators for the Åsgard subsea compression station, Monsson said.

The early electric actuators were installed with batteries, originally NiCad (nickel cadmium) and later Li-Ion (lithium ion). By the time the Åsgard project came along with a big electric power supply for all the turning machinery, batteries were not required.

Monsson said TechnipFMC continues to work on new variations of actuators for what it has done before, such as for choke valves, and possibly for high-integrity pipeline protection system applications, but taking the step up into an all-electric tree with higher safety requirements will take some time. Monsson said he expected such christmas trees to become available in 2020 or 2021.

Meanwhile, Aker Solutions has released an all-electric development project with the support of an impressive group of backers that include Statoil and Total plus Petronas and Lundin, Aker Solutions’ Einer Winther-Larsson told SEN.

Winther-Larsson said at a preconference meeting that Aker Solutions’ aim is to offer a smaller, lighter christmas tree as well as reduce the size of the umbilical and the amount of topside support equipment required. The company is calling its electric actuator ELDRIVE.

TechnipFMC’s Monsson was even more specific on the emphasis of all-electric. He made general reference to projects where the umbilical was “half the cost of the entire subsea production system.”

Caledyne, a leading energy industry engineering services and products specialist, has announced the successful qualification of a second size of its Torus insert safety valve, adding a 4.1/2" version to the existing 2.7/8".

The Torus Safety Valve has opened up many new opportunities for enhancing production from mature fields. Improving on a basic flapper type safety valve design, the torus safety valve allows for a central conduit to pass through the core where the conduit may be hydraulic (mini-coil or capillary string), electrical or fibre-optic. This allows for the installation of artificial lift or downhole monitoring in existing wells without the requirement of a full workover resulting in huge cost savings.

This project was facilitated into a joint industry collaborative project by ITF (Industry Technology Facilitator), allowing the 4.1/2" torus valve to achieve API 14A accreditation at an independent facility in the USA. Testing for API 14A qualification involves analysing gas and fluid leak rates for the test subject at both ambient and elevated temperatures.

Typical applications of the valve include liquid loading, chemical stimulation to prevent scale build-up, injection of corrosion inhibitors, downhole monitoring and insert gas lift. The 4.1/2" valve has completed further testing allowing a rotational umbilical to be installed through the valve. This has now opened up an entirely new market as Progressive Cavity Pumps (PCP) can be installed in offshore and safety valve applications. Simultaneously, Caledyne has developed a suite of surface and downhole solution complementing the Torus valve installation providing a complete solution from top to bottom.

The system is installed as per industry standard wireline insert safety valves and can be easily fitted on coil tubing for hanger applications, such as insert electric submersible pumps.

The success of the Torus Safety Valve has lead to Caledyne launching a new range of downhole valves, which includes the Caledyne Fluid Loss Valve (FLV), Mechanical Isolation Valve (MIV) and Completion Barrier Valve (CBV). With a range of applications ranging from formation protection for the FLV, to formation isolation for the MIV and CBV, the technology signals an exciting branch of innovation from the company.

David Martin, Technology director of Caledyne and one of the inventors of the Torus Safety Valve said, "We see the Torus safety system as an enabling technology. The Torus valve allows various operations to be carried out, which in the past were unachievable, because the safety case could not be answered.

"We foresee a drive towards techniques such as installation of progressing cavity pumps offshore, which can deliver increased recovery of oil and gas assets at lower cost than at present. Utilising the Torus valve does not only provide a technical solution to umbilical problems, the unique concentric design also minimizes flow restrictions resulting in a much greater flow area then traditional flapper type bypass valves."

Callum Munro, well operations engineer for BP, added, "BP as co-sponsor of the joint industry project participated in the development of the Torus Valve. This was seen as an exciting and progressive game-changer in the area of depleted gas wells, which suffer from liquid loading issues. The delivery of both 2 7/8" & 4 1/2" versions, now provide the market with increased options to extract additional reserves in mature gas provinces."

Caledyne managing director, Roland Van Dort, will be discussing Caledyne"s new valve range at the Offshore Technology Conference on Houston on May 4-7 on stand 2363.

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