SLB awarded Petrobras contract for subsea seawater injection systems in Brazil

JV deal

SLB's OneSubsea will provide seawater injection systems to boost recovery and cut emissions at Petrobras' Búzios field. Photo courtesy of SLB

Houston energy technology company SLB announced a contract award by Petrobras to its OneSubsea joint venture for two subsea raw seawater injection systems to increase recovery from the prolific Búzios field in offshore Brazil.

The subsea RWI systems will work to increase the production of floating production storage and offloading (Petrobras FPSO) vessels that are currently bottlenecked in their water injection capacities.The RWI systems, once operational, can reduce greenhouse gas emissions per barrel of oil.

“As deepwater basins mature, we see more and more secondary recovery opportunities emerging,” Mads Hjelmeland, CEO of SLB OneSubsea, says in a news release. “Subsea raw seawater injection is a well-proven application with a strong business case that we think should become mainstream. By placing the system directly on the seabed, we free up space and reduce fuel needs for the FPSOs as well as lessen the power needs for the injection systems. It’s a win-win for Petrobras, and one that we are very excited about.”

SLB OneSubsea works to “optimize oil and gas production, decarbonize subsea operations, and unlock the large potential of subsea solutions to accelerate the energy transition,” per to the company.

SLB OneSubsea is contracted to provide two complete subsea RWI systems to support Petrobras’ FPSOs P-74 and P-75. They will consist of a subsea seawater injection pump, umbilical system and topside variable speed drive. In addition,the team will also provide technical support using AI-enabled Subsea Live services, which includes condition monitoring and access to domain experts.

“This contract will consolidate our solid local content presence in the country, contributed by the largest manufacturing plants and state-of-the-art subsea service facilities in Brazil,” Hjelmeland continues.

An innovative water production company has plans to create Houston-area plants — and more trending Houston energy transition news. Photo via skyh2o.com

M&A moves, innovative water co. expands, and more trending Houston energy transition news

well read

Editor's note: It's been a busy news week for energy transition in Houston, and some of this week's headlines resonated with EnergyCapital readers on social media and daily newsletter. Trending news included a unique water-producing company expanding in Texas new deals and partnerships, and more.

Innovative California company taps Houston area for purified water projects

A California tech company is planning on rolling out a handful of atmospheric water generation projects near Houston. Photo via skyh2o.com

Houstonians are used to filtering their water, but few really ponder why they’re doing it.

“Most people, when they think about water stress, they think about water scarcity, like what you see happening in Northern Africa or maybe the Southern U.S.,” says Alexander von Welczeck, chairman, president and CEO of SkyH2O. “A bigger, creeping issue, particularly in the industrialized world, is water toxicity.”

Some Houston tap water contains “forever chemicals” that can be toxic, as some reports have found. In fact, says von Welczeck, water toxicity is a problem across the Gulf Coast. That’s why the California-based businessman has identified Houston as the first region to benefit from SkyH2O’s technology. Read more.

Houston company closes offshore JV deal to drive innovation, efficiency in subsea production

The new joint venture, OneSubsea, is based in Oslo, Norway, and Houston. Photo courtesy

A new joint venture with co-headquarters in Houston will explore opportunities in the market for subsea systems that tap into offshore energy reserves.

The business, called OneSubsea, is a joint venture of Houston-based energy technology company SLB (Schlumberger), Norwegian energy engineering company Aker Solutions, and Luxembourg-based energy engineering company Subsea7. SLB holds a 70 percent stake in OneSubsea, with Aker’s share at 20 percent and Subsea7’s share at 10 percent.

The financial foundation of the joint venture is a combination of $700.5 million in stock, cash, and a promissory note. In addition, SLB and Aker folded their subsea businesses into the joint venture, which was announced in 2022. Read more.

Clean tech co. with U.S. HQ selected for UAE carbon capture project

Carbon Clean develops carbon capture technology for customers such as cement producers, steelmakers, refineries, and waste-to-energy plants. Photo via Carbon Clean

Abu Dhabi National Oil Co. (ADNOC), the state-owned oil company of the United Arab Emirates, has chosen technology from United Kingdom-based company Carbon Clean for a carbon capture project in Abu Dhabi. Carbon Clean’s U.S. headquarters is in Houston.

Carbon Clean’s modular CycloneCC technology will be used for a carbon capture project at a Fertiglobe nitrogen fertilizer plant. Fertiglobe is a joint venture between ADNOC and OCI Global, a Netherlands-based chemical company.

“This project is hugely significant given it’s the first industrial deployment of our award-winning CycloneCC technology anywhere in the world,” says Aniruddha Sharma, chairman and CEO of Carbon Clean. “We are moving a step closer to achieving full commercialization of this modular solution, which will play a vital role in decarbonizing heavy industries and achieving net-zero targets.” Read more.

Houston carbon storage solutions company names new energy transition leader at pivotal time of growth

Graham Payne, the new director of energy transition at Caliche Development Partners II, is bullish on Houston. Photo courtesy

Graham Payne sees a bright future for the multibillion-dollar energy transition economy in Houston.

“It’s been said that Houston is poised, like no other city, to lead the energy transition. And I’d have to agree, because we have all the requisite natural resources, industry, and talent,” says Payne, the new director of energy transition at Houston-based carbon capture, utilization, and storage (CCUS) company Caliche Development Partners II.

Caliche and other Houston-based energy transition companies secured $6.1 billion in private funding last year, up 62 percent from 2022, according to the Greater Houston Partnership. Read more.

Airline fuels up for new flights from Houston to oil-and-gas country

It's wheels up to Midland-Odessa in January. Photo courtesy of JSX

Hop-on jet service JSX is adding a new, year-round destination for the millions of Texans who work in oil and gas: Midland-Odessa.

Starting January 15, 2024, JSX will fly nonstop from Houston and Dallas to Odessa Airport-Schlemeyer Field (ODT). Read more.

The new joint venture, OneSubsea, is based in Oslo, Norway, and Houston. Photo courtesy

Houston company closes offshore JV deal to drive innovation, efficiency in subsea production

teaming up

A new joint venture with co-headquarters in Houston will explore opportunities in the market for subsea systems that tap into offshore energy reserves.

“As demand grows for cost-effective, efficient, and sustainable energy,” the joint venture says, “a large portion of the corresponding supply increase will come from offshore developments resulting in strong deepwater activity … and the need for innovative subsea solutions.”

OneSubsea is based in Oslo, Norway, and Houston.

As Aker explains, a subsea system “provides a way to produce hydrocarbons from areas not economically or easily developed by the use of an offshore platform.” The system’s ocean-floor components are connected to subsea pipelines, riser systems, and other equipment.

Hydrocarbons are the key components of oil and natural gas.

“The offshore market is demonstrating a sustained resurgence as operators across the world look to accelerate development cycle times and increase the productivity of their offshore assets,” says Olivier Le Peuch, CEO of SLB.

Mads Hjelmeland is the newly appointed CEO of OneSubsea, which employs about 11,000 people around the world.

“OneSubsea’s extensive technology portfolio and engineering expertise enable us to address future market trends and needs at a unique scale. In doing so, we aim to fulfil our purpose of expanding the frontiers of subsea to drive a sustainable energy future,” says Hjelmeland, who is based in Houston.

Hjelmeland’s tenure with the previous iteration of OneSubsea began in 2014. That’s a year after SLB and Cameron, a supplier of equipment, systems and services for the oil and gas industry, formed a joint venture known as OneSubsea to serve the subsea oil and gas market. SLB owned a 40 percent stake in OneSubsea, and Cameron owned a 60 percent stake.

To establish OneSubsea, Cameron contributed its subsea business, and SLB pitched in a $600 million payment to Cameron along with several business units.

In 2016, SLB acquired Cameron in a cash-and-stock deal initially valued at $14.8 billion. OneSubsea then became a subsidiary of SLB, and that subsidiary is now part of the newly reconfigured OneSubsea.

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3 must-know fall application deadlines for Houston energy innovators

Editor's note: As fall reaches full swing, Houston's innovation and cleantech scene is calling on the latest batch of founders and startups looking to make a difference. A number of accelerators have opened applications. Read below to see which might be a good fit for you or your venture. And take careful note of the deadlines. Please note: this article may be updated to include additional information and programs.

Did we miss an accelerator or competition accepting applications? Email innoeditor@innovationmap.com for editorial consideration.

Greentown Lab's Go Make 2027: Advanced Carbon Materials with ExxonMobil

Deadline: Oct. 9

Details: Greentown Labs is seeking applications from startups developing novel carbon-based technologies for its latest Go Make cohort in conjunction with ExxonMobil. The structured accelerator is designed to facilitate validation activities and explore potential long-term collaborations with Exxon, according to Greentown. Founders will have the opportunity to engage directly with industry leaders to test, validate and scale their carbon technologies in real commercial contexts. The program tentatively starts on Jan. 20, 2027 and concludes June 16, 2027. Find more information here.

Activate's U.S. Fellowship Cohort 2027

Deadline: Oct. 30

Details: Activate supports scientists at "the outset of their entrepreneurial journey." It partners with U.S.-based funders and research institutions to support its fellows in developing high-impact technology. Its fellows receive a living stipend, research and development funding, connections from Activate's robust network of mentors and access to a curriculum specific to the program for two years. Applicants must have a bachelor’s degree and 4-plus years of post-baccalaureate scientific research, engineering or technology development experience. Their work must be based in the physical or biological sciences or related engineering disciplines. Find more information here.

Rice Innovation Fellows

Deadline: Oct. 30

Details: The Liu Idea Lab for Innovation and Entrepreneurship (Lilie)'s Rice Innovation Fellows program supports Rice Ph.D. students and postdocs in turning their research into real-world ventures. Participants receive $10,000 in translational research funding, co-working space and personalized mentorship. Candidates from all Rice engineering and science-related disciplines are encouraged to apply. Find more information here.

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A version of this article originally appeared on our sister site, InnovationMap.

Houston carbon removal company secures $35M in financing

national scale

Houston-based Vaulted Deep, a waste management and carbon removal company, has announced a major $35 million debt facility from Italian investment bank Mediobanca to support its national expansion.

U.K.-based market energy solutions CFP Energy arranged the deal, which is “the largest publicly disclosed U.S. commercial debt deal in durable carbon removal to be secured by long-term purchase contracts,” according to a news release from the companies.

The financing will support new waste disposal sites for Vaulted Deep and advancements of the company’s AI-enabled site development platform. The platform helps identify locations, navigate permitting and optimize injection operations. When candidates are looking for sites, the platform will pull from regulatory, geology and waste-supply data to assist, which Vaulted Deep says will help streamline the permitting process. After the site is operating, the platform helps control algorithms to maximize safe disposal capacity and monitor the process along the way.

"Waste operators across the country need new options as traditional disposal options become limited,” Julia Reichelstein, CEO and co-founder of Vaulted Deep, said in the release. “This financing lets us take on more projects and invest in the tools that help us evaluate and develop new sites faster. This is a meaningful milestone for Vaulted as we move into the next phase of building infrastructure at a much larger scale."

The deal is supported by Vaulted Deep's long-term waste service and carbon removal purchase contracts. The company says it delivered more than 20,000 tons of carbon removal to buyers in the first half of 2026, which is more than it delivered in all of 2025.

"By facilitating these types of transactions, we connect institutional capital with innovative climate technologies, helping accelerate the deployment of high-integrity carbon removal solutions,” Tyler Manchester, head of voluntary carbon for CFP Energy, added in the release. “It reflects growing investor confidence in these solutions, driven by rising demand from corporate buyers seeking permanent pathways to support net-zero commitments and long-term climate strategies."

Beyond the facility, Vaulted Deep has secured $48 million in equity financing in addition to its $8 million from the XPRIZE Carbon Removal competition, backed by Elon Musk’s charitable organization, The Musk Foundation.

The company's well injection technology is used to store organic waste deep underground in stable geologic formations. In 2025, it inked a 12-year deal with Microsoft to remove up to 4.9 million metric tons of carbon dioxide from the environment.

Houston's power future report and more top energy transition headlines

Hot News

Editor's note: It's time to look back at the top Houston energy transition news in recent weeks, from a report that examines Houston's power future, to exciting funding raises for a local startup and a member of a local incubator. Here are the five most-read EnergyCapitalHTX stories from September 16-30, 2026:

Houston’s power future: The role of energy efficiency and demand response

A new report from the Houston Energy Transition Initiative, “Role of Efficiency & Demand Response to Meet Near-Term Regional Power Demand,” examines how Houston can get more from the grid it has today. Its central finding: energy efficiency (EE) and demand response (DE) can create measurable grid “headroom” while new major infrastructure projects are being planned, financed, permitted and built. Explore the key takeaways from the report. Continue reading.

ExxonMobil secures approval for $5B East Texas carbon capture project

Spring-based ExxonMobil has won approval from the Texas Railroad Commission for a $5 billion carbon capture and storage project in East Texas. The project will enable the company to inject about 53 metric tons of industrial customers’ carbon emissions into three underground wells it drilled in the Beaumont-Port Arthur area. Over a 13-year period, ExxonMobil plans to inject about 4 million metric tons per year into the Fleming and Upper Frio rock formations, according to Carbon Herald. Continue reading.

Houston-based ‘grid in a box’ provider Branch Energy raises $33M

Houston-based startup Branch Energy, which offers a self-contained “grid in a box,” has collected $33 million in a Series B round. Piva Capital and Clean Energy Ventures led the round. Active Impact Investments, Whitecap Venture Partners, Prelude Ventures, Zero Infinity Partners and Inovia Capital also contributed to the round. In 2024, Branch raised $10.8 million in an oversubscribed Series A round. Continue reading.

Kanin Energy raises up to $100M for waste-heat-to-power projects

Kanin Energy, a member of the Greentown Labs climatech and energy incubator in Houston, recently raised as much as $100 million in capital to grow its energy-as-a-service platform. S2G Investments led a round of up to $50 million, and the Canada Growth Fund chipped in an additional $50 million. The money will primarily support Kanin’s development and operation of waste-heat-to-power projects. Continue reading.

Houston-based ENGIE wins national award for clean energy leadership

Houston-based ENGIE has been recognized for its work in the clean energy space. The battery storage and energy infrastructure company recently won the 2026 Green Power Leadership Award in the Market Innovation category for its work advancing 24/7 renewable energy solutions. The awards honor individuals and companies advancing sustainability and renewables in the energy industry through innovation and leadership. Continue reading.

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