subsea innovation

UH team partners with Chevron, Oceaneering for remote-operated pipeline inspector

The robots, developed by UH researchers, will provide a safer and more cost effective alternative to pipeline inspections, which are traditionally performed by human divers and require a great deal of time and money. Photo via UH.edu

Two professors at the University of Houston have developed an autonomous subsea vehicle that aims to decrease the number and severity of oil spills.

Known as SmartTouch technology, the Remote Operated Vehicles (ROVs) use smart touch sensors, video cameras and scanning sonars to inspect flange bolts in subsea pipelines, which are considered to lead to increased rates of leakage, according to a release from the university.

The ROVs, developed by UH's Zheng Chen and Gangbing Song, will provide a safer and more cost effective alternative to pipeline inspections, which are traditionally performed by human divers and require a great deal of time and money.

“By automating the inspection process with this state-of-the art robotic technology, we can dramatically reduce the cost and risk of these important subsea inspections which will lead to safer operations of offshore oil and gas pipelines as less intervention from human divers will be needed,” Chen, the Bill D. Cook Assistant Professor of Mechanical Engineering, said in a statement.

The technology will also be highly accurate in monitoring corrosion, which according to Song, the John and Rebecca Moores Professor of Mechanical Engineering, is responsible for most small leaks in subsea pipelines.

The project is funded by a $960,000 grant from the Bureau of Safety and Environmental Enforcement (BSEE), which is a part of the U.S. Department of the Interior. Chen and Song are also collaborating with Houston-based Oceaneering International on the development of the ROVs, which Oceaneering specializes in. Energy giant Chevron will evaluate the technology’s future commercialization, according to UH, and preliminary studies were funded by the university's Subsea Systems Institute.

Thus far, a prototype of the ROVs has been tested in Chen's lab at UH and in Galveston Bay. Experiments showed the technology's ability to inspect the looseness of subsea bolted connections, like flange bolts.

Chen and Song see other applications for their technology, as well.

"Ultimately, the project will push the boundaries of what can be accomplished by integrating robotics and structural health monitoring technologies," Chen added in the statement. "With proper implementation, the rate of subsea pipeline failure and related accidents will decrease, and subsea operations will be free to expand at a faster rate than before.”

Earlier this summer the UH Subsea Systems Institute and SPRINT Robotics teamed up to develop a robotics training program for the energy industry known as “Robotics in Energy.” The first of a series of two-day courses debuted in May and a subsequent course, Automation & Autonomy, will launch next month. Others are expected to be rolled out in the future as part of the university's Micro-Credentialing Programs in UH Energy.

Additionally Chevron and UH partnered up again last month to announce its inaugural cohort of UH-Chevron Energy Graduate Fellows.

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A View From HETI

A new Houston battery storage facility has come online in just six weeks. Photo courtesy FlexGen

Colorado-based energy storage company SMT Energy and North Carolina-based software company FlexGen have begun operations of Houston IV, a 160-megawatt utility-scale battery storage facility that aims to support the ERCOT grid.

The companies delivered the project in just six weeks, according to a news release. Mississippi-based Irby Construction Company served as the engineering, procurement, and construction (EPC) partner, and CenterPoint Energy will serve as the interconnecting utility.

“FlexGen’s distinctive combination of software automation, our remote operations center, and on-the-ground field expertise all work together to accelerate battery deployment,” Jason Rislov, SVP of operations at FlexGen, said in the release. “What used to take 25-plus weeks took us six. That time saved translates directly into giving the grid and consumers what they need most right now: a more reliable, resilient energy system.”

Houston IV is one of more than 12 projects that SMT and FlexGen have built to connect to ERCOT, according to Energy Storage News.

“Bringing a 160-MW battery storage facility online in just six weeks required disciplined planning, seamless coordination, and an unwavering focus on safety and quality,” Shaun Coleman, project manager at Irby Construction, said in a news release. “The SMT Energy, FlexGen, and Irby Construction teams coordinated engineering, procurement, and construction to keep every workstream aligned, identify challenges early, and maintain safety and quality at an accelerated pace. That integration is critical, not only to delivering projects quickly, but also to ensuring battery storage facilities perform reliably over the long term.”

Houston IV is expected to store and provide enough electricity to power 8,800 homes in Texas annually. In March, SMT Energy secured $135 million in funding for the project from Macquarie and KeyBanc Capital Markets as joint lead arrangers. SMT and FlexGen broke ground to signal the start of the process in May.

In 2023, SMT Energy and joint venture partner SUSI Partners also announced plans to add 10 battery storage projects to Texas, which would double capacity from 100 megawatts to 200 megawatts in the Houston and Dallas areas.

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