PetroChina is the listed operating arm of CNPC and the producer behind a large share of China's onshore oil and gas, from Daqing in the northeast to the Ordos Basin, Xinjiang and Sichuan. This page is for the HSE, instrumentation and telecoms teams deciding what an explosion proof mobile phone in China may carry into those wellfields, plants and stations. The IS-04Z1 is designed around intrinsic safety rather than a flameproof enclosure.
Launching Q4 2026 · NEPSI certification and vendor documentation in progress
PetroChina runs its upstream business through regional oilfield companies rather than one central field office. Daqing in Heilongjiang is the oldest and best known. Changqing works the Ordos Basin across Shaanxi and neighbouring provinces and is China's largest gas-producing field. Tarim covers the desert basin of southern Xinjiang, and the Southwest Oil and Gas Field produces from the Sichuan Basin, where PetroChina has reported annual gas output above 30 billion cubic metres. Liaohe, Jilin and Karamay (Xinjiang) add older, mature fields. One change matters for anyone writing a site list: long-distance trunk pipelines, gas storage and some LNG terminals were moved out of PetroChina into the separate national pipeline company, PipeChina, under agreements announced in July 2020, with PetroChina keeping a minority stake. A trunk compressor station is therefore now normally a PipeChina site, while PetroChina's own classified areas are the wellsite, the gathering station, the treatment plant, the gas processing plant, the refinery and the product depot.
PetroChina's fields sit in four very different climates. The area classification decides whether a phone can enter at all; after that it is the desert, the winter or the humidity that decides how long it survives.
Many Changqing, Tarim and Karamay locations are a long drive from a town. A damaged or flat handset is not replaced on the same shift, so IP68 sealing and a 4,000 mAh battery matter more here than a headline specification.
Fine sand in the south of Xinjiang gets into ports, seams and speaker grilles. The IS-04Z1 is designed to IP68, which is the sealing rating that addresses dust ingress.
Daqing and Jilin see long, severe winters. Cold drains lithium cells quickly, so the exact operating temperature range will be stated on the certificate rather than promised in advance.
The Southwest field sits in terrain where access roads are steep and the air is wet. Sealing against moisture is the practical test there.
A wellfield workforce mixes company staff and drilling, services and construction contractors. Enrolment in an existing MDM console lets each group's handsets follow its own policy, including switching the camera off where site rules require.
Procurement is split across the regional oilfield companies and the downstream companies, so approval is rarely a single national decision. Drilling and well services are normally carried out by contractor companies working under the operator's permit-to-work system, and refinery turnarounds bring a large temporary workforce into a short window. We have not verified a published equipment-registration programme for handsets at PetroChina and do not claim one here. The practical route is to ask the relevant company's procurement and HSE teams which Ex certificates and supplier documents they accept, and whether a China-registered supplier is required. We are preparing that documentation, with the NEPSI route among the certification work in progress, ahead of the Q4 2026 launch.
An operator driving a route of wellheads and a gathering station records pressures, photographs a leaking gland and sends the coordinate to the maintenance planner from one handset, instead of returning to the vehicle each time.
During a scheduled shutdown at a gas plant, contractor crews arrive in numbers. An enrolled handset carries the permit, the isolation list and the daily report, and can be locked to the applications the operator has approved.
A refinery turnaround multiplies permits and crews inside process units. Photographs of completed work and positions of tagged equipment travel with the handset, reducing the paper that crews sign out at the gate.
Often not any more. Since the 2020 transfer, long-distance trunk pipelines and related storage sit with PipeChina, so a station on a trunk line is usually PipeChina's to approve. Confirm who owns the specific station before asking for access.
No. The IS-04Z1 is a communications handset, not a gas detector. Where hydrogen sulphide is present, personal gas detectors remain mandatory and the handset is a separate item that has to meet the area classification on its own.
The one that owns the site: Daqing, Changqing, Tarim, Southwest, a refinery or a depot each run their own equipment review. Ask the company, not the group, and bring the area classification with the request.
No. The device is pre-launch, certification is in progress and NEPSI is among the routes being pursued ahead of the Q4 2026 launch. Nothing should enter a classified area before the certificate covering it exists.
Tell us the site, the zone and gas group, and roughly how many handsets. The SAMS team replies by email with the datasheet and the certification schedule for China. The IS-04Z1 is pre-launch and certification is in progress, so there is no list price yet; indicative pricing is issued in writing against a stated quantity and site.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule for your market.
