Large floating units
Fields use FPSOs; Buzios alone reached 1 million barrels of oil equivalent a day operated with six platforms.
The Santos Basin is an offshore province in the South Atlantic, roughly 300 km south-east of Santos, spanning about 352,000 square kilometres and holding major pre-salt fields such as Tupi, Buzios and Mero. Its FPSOs create Zone 1 areas on process decks and in storage and offloading areas. An Ex-proof mobile phone distributor in Santos Basin would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Santos Basin has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Santos Basin: Gas compression and export, Offloading areas, Platform process modules | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Santos Basin. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
Fields use FPSOs; Buzios alone reached 1 million barrels of oil equivalent a day operated with six platforms.
Pre-salt units are far offshore, so crews and equipment move by helicopter and supply vessel.
Giant fields found since 2007 include Tupi (about 8 billion barrels), Jupiter (about 1.6 billion barrels and 17 trillion cubic feet of gas) and Libra, estimated at 8 to 12 billion recoverable barrels.
Pre-salt reservoirs are ultra-deep carbonates, roughly 5,000 to 7,000 m total depth below a thick salt seal, which drives the high-pressure, high-temperature design of wells and topsides.
Santos, Guaruja and Ilhabela sit in the central onshore part of the basin, and the city of Rio de Janeiro is on the northern coastal edge, so supply bases cluster along that coast.
Associated gas in some pre-salt fields contains more than 20 percent CO2, which is separated on the FPSO, compressed and reinjected, so gas compression and high-pressure CO2 handling are routine offshore.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Santos Basin. The sheet notes Zone 1 areas on process decks and in storage and offloading areas. Gas export from the pre-salt adds gas compression to the mix. A label check compares zone, gas group and temperature class with each unit's classification. The IS-04Z1 target marking II 2 G Ex ib IIC T4 is not yet certified.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Santos Basin yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
Likely candidates are platform process modules, wellhead areas, gas compression and export, offloading areas. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Santos Basin.
Petrobras is the main operator, often in partnership with other energy companies on licences. Because induction rules and approved-device lists are set per operator and unit, confirm requirements for each asset you will visit.
It is a process condition rather than an Ex rating, but gas detection, procedures and area classification take it into account. Mobile devices still follow the unit's zone rules, so confirm with the operator which markings and approvals the platform accepts.
Not necessarily. Petrobras, Shell, Repsol and Eni each set their own policies for portable devices and approvals. Ask each operator for its Ex equipment policy and the classification of the specific unit. Confirm with the site operator before ordering.
Other guides for Santos Basin, other places in Brazil, and the pages behind them.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.