Logistics
Facilities lie well offshore, Thunder Horse about 150 miles south-east of New Orleans, so access depends on helicopter and vessel schedules.
Gulf sea-surface temperatures average about 28 degrees Celsius in summer and feed Atlantic hurricanes, so storm evacuation and shutdown planning is part of normal offshore operations. Hazardous-area work covers well bays, process decks and drill floors, regulated offshore by the Bureau of Safety and Environmental Enforcement. This page explains what to look for in an Ex-proof mobile phone for US Gulf of Mexico offshore platforms and rigs, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for US Gulf of Mexico offshore platforms and rigs: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
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 | US Gulf of Mexico offshore platforms and rigs: Drill floors and well bays, Production process decks, Wellhead areas | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Gulf of Mexico Rigs. 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.
Facilities lie well offshore, Thunder Horse about 150 miles south-east of New Orleans, so access depends on helicopter and vessel schedules.
BP operates Thunder Horse, a semi-submersible in about 1,840 m of water with first oil in 2008. Shell operates Perdido, a spar in about 2,450 m of water, with Chevron and BP as partners.
About 27,000 abandoned oil and gas wells lie beneath the Gulf, so well plugging and decommissioning is a continuing source of offshore work alongside production.
The Gulf is one of the largest offshore petroleum regions in the world and accounts for about 14 percent of United States crude oil production, according to the encyclopaedia entry on the Gulf.
The US Bureau of Safety and Environmental Enforcement is the federal agency responsible for offshore safety and environmental protection and sets decommissioning requirements, including plans for removing platforms and plugging wells.
By 1975 around 400 rigs in the Gulf hosted a temporary population of more than 10,000 workers, rotated on staggered weekly schedules, and automation has since reduced the offshore headcount.
“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 US Gulf of Mexico offshore platforms and rigs. A marking check on a platform would compare the area classification drawings with the label, covering zone or division, gas group and temperature class. Wellhead and process areas handle hydrocarbon gas, and IIC marking gives margin. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, pending certification.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
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 drill floors and well bays, production process decks, wellhead areas, utility and compression areas. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Offshore trips run for days at a time with crews rotating on set schedules, and charging points in classified areas are limited. Plan for a full-shift battery, spare cells approved for the area, and charging only in safe areas as the platform rules require.
Decommissioning is a steady activity, with tens of thousands of old wells to plug and structures to remove under regulator-approved plans. Contractors on these jobs still work in areas that may contain hydrocarbons, so the same area-classification checks apply.
Facilities lie well offshore, with Thunder Horse about 150 miles south-east of New Orleans, so access depends on helicopter and vessel schedules. Plan device enrolment, battery charging and safe-area handover onshore, and ask the operator how equipment is checked and approved before it travels.
More on Gulf of Mexico Rigs, and on other places in United States.
Share the site details and quantity. You will get the datasheet and the certification schedule back by email; pricing is indicative only until launch.
Name the site and the operator and we will send what is available before launch.