Wellhead automation manufacturers

Technical Specifications – Complete Wellhead Automation System

Wellhead Control Panel (WHCP) – Core Specifications

Parameter	SJ Petro Specification
Wellhead Standards Compliance	API Spec 6A (21st Ed.), ISO 10423, NACE MR0175
Safety Standards	API 14A, API RP 14B, API RP 14C, IEC 61508 / IEC 61511 (SIL‑2, SIL‑3)
Number of Wells Controlled	Single‑well (dedicated) or multi‑well (1–24 wells per master panel, expandable)
Control Valves	SCSSV, SSV, ESDV, wing valve, choke valve, HIPPS, GVV
Pressure Output Range	0 – 30,000 PSI (0 – 207 MPa) – higher on request
Hydraulic Working Pressure	Up to 20,000 PSI for downhole valve control
Operating Temperature Range	Standard: -40°C to +60°C (-40°F to 140°F); Arctic: -45°C
Storage Temperature	Up to +85°C (185°F)
Enclosure Protection Rating	IP65 / IP66 minimum (dust‑tight, water‑tight)
Enclosure Material	304SS or 316SS stainless steel
Explosion‑Proof Rating	Exd II BT4 (Zone 1/2), higher on request
Fusible Plug Temperature	160°F (71°C) to 281°F (138°C) – field configurable
Controller Type	Industrial‑grade RTU with integrated PLC functions, 32‑bit, real‑time multitasking
I/O Capacity	Configurable up to 64 analog inputs, 128 digital inputs, 64 digital outputs per panel (expandable)
Sampling Rate	Up to 10 points/second
Data Historian	Embedded, 1‑year archive (expandable)
Local HMI	7″ – 15″ sunlight‑readable touchscreen (optional), physical ESD buttons
Safety Integrity Level (SIL)	SIL‑2 or SIL‑3 capable (IEC 61508/61511)
Supported Protocols	Modbus RTU, Modbus TCP/IP, DNP3, IEC 60870‑5‑104, OPC UA, MQTT
Physical Communication	4G/5G cellular, satellite (Iridium, Inmarsat), fibre, radio, Ethernet
SCADA Integration	Emerson, Siemens, Schneider, ABB, Rockwell and others
Power Options	Grid (110/220 VAC + battery), solar (<50 W + battery bank), hybrid
Well Types Supported	Oil wells, gas wells, injection wells, water disposal wells, geothermal wells
API Monogram	Available on request for API 6A components
Certifications	API Q1, API 6A, API 16C, ISO 9001, ISO 14001, ISO 45001, CE, ATEX, IECEx

Product Types – Wellhead Automation Solutions We Manufacture

1. Single‑Well Standalone WHCP (Basic Safety)

Best for: Remote exploration wells, small production wells, locations without communication infrastructure.

Includes: WHCP with RTU/PLC, pressure/temperature sensors, actuator (hydraulic/pneumatic/electric/solar), fusible plug loop, battery backup. Local ESD and manual control. Data logging (USB export). Communication ports are fitted for easy future upgrade to remote monitoring.

2. Single‑Well WHCP with Remote Monitoring (SCADA Ready)

Best for: Wells where production data needs to be viewed from a central office, but remote control is not yet required.

Includes: All standard WHCP specifications, plus cellular (4G/5G) or satellite communication interface, SCADA viewer dashboard (real‑time pressures, temperatures, valve status, email/text alarm notifications, historical trend charts). View‑only mode – remote control not enabled. Easy software upgrade to full control.

3. Single‑Well WHCP with Full Remote Operation & Control

Best for: Wells where remote shutdown, valve operation and setpoint adjustments are required from a central control room.

Includes: All standard WHCP specifications, plus secure remote access (VPN), full two‑way control capability, authorised remote valve operation (SSV, wing valves, choke valve), remote setpoint changes for pressure/temperature thresholds, user authentication and audit logging.

4. Multi‑Well Master‑Local WHCP System (Cluster Pad)

Best for: Multi‑well pads (shale gas pads, cluster oil wells, offshore platforms, artificial islands). A single master panel controls up to 24 wells.

Includes: Master panel in central equipment building, remote I/O termination boxes at each wellhead via hardened digital links (Ethernet, fibre optic or RS‑485), one operator interface controlling all wells, modular design – each well functions independently; maintenance on one well does not affect others.

5. Full‑Field SCADA System with Distributed WHCPs

Best for: Oil and gas fields with dozens or hundreds of wells scattered over wide geographic areas.

Includes: Each wellhead equipped with a smart WHCP that operates autonomously when communication is lost. All WHCPs report to a central SCADA server (on‑premises or cloud) via cellular, satellite, radio or fibre. Unified field view with real‑time data, alarm management, reporting, historical trending and remote well control from a single workstation.

6. Offshore / HPHT Wellhead Automation System

Best for: Offshore platforms, deep gas wells, HPHT fields requiring remote ESD and SIL‑rated safety logic.

Includes: API 6A pressure‑class components, sensors rated up to 250°F, explosion‑proof hazardous area enclosure (Zone 1/2), dual power supplies, dual communication paths, triple‑redundant safety logic (SIL‑3 option), corrosion‑protected marine finish, DNV/ABS certification available, sub‑second ESD response time.

7. Arctic‑Rated Wellhead Automation System (Cold Climate)

Best for: Siberia, Northern Canada, Alaska and other regions with sustained sub‑freezing temperatures.

Includes: Extended operating temperature range to -45°C, heated enclosures (electric heat tracing), low‑temperature hydraulic fluids and seals (pour point below -55°C), battery heaters with oversized battery banks, insulated wiring and weather‑proofed connectors, nitrogen‑purged instrument enclosures for freeze‑thaw cycles. Proven in Russia.

8. Solar‑Powered Wellhead Automation System (Off‑Grid)

Best for: Remote wells without utility grid access, unmanned locations, low‑carbon footprint operations.

Includes: Low‑power components (<50 W typical consumption), solar array sized for local insolation, deep‑cycle battery bank with 5–10 days autonomy, charge controller with under‑voltage and over‑voltage protection, optional cellular or satellite communication, full ESD and data logging functionality – same API 6A certified safety features as grid‑powered systems.

Applications – Where Our Wellhead Automation Is Used

• Onshore conventional oil & gas fields – replace manual wellhead checks with remote real‑time monitoring, automated production data collection and immediate alarm notification.

• Offshore production platforms – reduce personnel exposure in hazardous areas, manage wellhead safety shutdown systems and integrate with platform DCS.

• Unconventional (shale / tight) fields – monitor and control dozens of wells from a central pad equipment building, reduce truck rolls and optimise production through automated intermittent well control.

• High‑pressure, high‑temperature (HPHT) wells – API 6A components rated to 20,000 PSI, SIL‑rated ESD logic, sensors up to 250°F (121°C).

• Remote & unmanned well sites – solar‑powered WHCP with cellular or satellite communication, autonomous ESD, low maintenance and 5–10 days battery autonomy.

• Enhanced oil recovery (EOR) / injection wells – remote adjustment of injection rates based on reservoir response, real‑time pressure monitoring to avoid formation damage.

• Abandoned well monitoring – low‑cost solar WHCP with pressure and gas detection meets regulatory surveillance requirements without routine site visits.

• Artificial islands and cluster well pads – master‑local system reduces panel count; each well operates independently; fast expansion without replacing the entire system.

Why Choose SJ Petro as Your Wellhead Automation Manufacturer?

Because wellhead automation is not an off‑the‑shelf product. It is an engineered system that must work in your specific wells, with your specific crew, on your specific timeline. You need a manufacturer who designs, builds, certifies and supports every component – and who has the OEM credentials to back every claim.

Your Challenge	SJ Petro’s Answer
"I need API certification for an international tender.”	Full API 6A, 4F, 7K, 8C, 16C compliance. API monogram available. Authorised user of API monograms.
"I have 24 wells on a pad and want one control room.”	Master‑local system. One master panel controls up to 24 wells, remote I/O boxes at each well. Each well independent.
"My wells are scattered with no grid power and no cellular signal.”	Solar‑powered WHCP + satellite communication. 5–10 days battery autonomy, low‑power design (<50 W).
"I need to integrate with my existing Emerson SCADA.”	We support Modbus TCP/IP, OPC UA, DNP3, MQTT. Our engineers work with your IT/OT team.
*"I operate in -45°C winters. Standard equipment freezes.”*	Arctic package – heated enclosures, low‑temp hydraulics, battery heaters, insulated wiring. Proven in Russia.
"I need a SIL‑2 rated ESD for my offshore platform.”	IEC 61508/61511 certified SIL‑2 (or SIL‑3) rated logic solvers, sensors and actuators. Full SIL assessment documentation.

More reasons to trust SJ Petro:

• Sinopec Group heritage – 80+ years of oilfield equipment engineering, founded in 1941, rooted in Jingzhou, Hubei

• Ranked No. 1 in SINOPEC – the only Class A manufacturer of choke and kill manifolds for CNPC

• API monogram authorised – API 4F, 7K, 8C, 6A and 16C products

• In‑house manufacturing – we design, fabricate and test our own WHCPs, RTU/PLC systems and API‑certified wellhead components

• Global track record – wellhead automation systems delivered to Central Asia, Russia, Middle East, South America, Africa and Southeast Asia

• 18 production plants, 8 subsidiaries – offices around the main oilfields of the world

• Flexible commercial terms – milestone payments (30/40/30), operating leases and direct financing available for qualified buyers

Frequently Asked Questions (FAQ) – Wellhead Automation Manufacturer

Q1: How do I verify that SJ Petro is a real wellhead automation manufacturer and not a trading company?

A: We invite you to visit our 50,000 m² manufacturing facility in Jingzhou, Hubei, China. You will see our API‑certified fabrication shops, our in‑house RTU/PLC assembly lines, our valve machining centres and our load test stands. We hold API Q1, API 6A, API 16C, API 4F, API 7K, API 8C, ISO 9001, ISO 14001 and ISO 45001 certifications. We are a wholly‑owned subsidiary of Sinopec Oilfield Equipment Corporation – one of China’s largest oilfield equipment manufacturers. Trading companies cannot produce these credentials.

Q2: What API certifications do you hold for wellhead automation products?

A: We are authorised to use API monograms on products under API 4F, 7K, 8C, 6A and 16C. Our wellhead control panels and safety systems comply with API 14A (downhole safety valves), API RP 14B (subsurface safety valve systems) and API RP 14C (safety systems for offshore production). For international tenders, we provide complete certification packages including material test reports (EN 10204 3.1), hydrostatic certificates (1.5× MWP), NDT reports (MT, PT, UT) and API data sheets.

Q3: Can your WHCP control both surface safety valves (SSV) and subsurface safety valves (SCSSV)?

A: Yes. Our WHCP is designed to control both SSV and SCSSV simultaneously, along with wing valves, ESDVs, HIPPS and other hydraulic or pneumatic valves. The control logic includes sequenced well shut‑in with user‑set valve close times to ensure proper closure order and avoid pressure surges.

Q4: What is the difference between a single‑well WHCP and a multi‑well master‑local system?

A: A single‑well WHCP is a standalone panel installed at one wellhead, providing local ESD, manual control and optional remote monitoring for that single well. A multi‑well master‑local system uses one master panel in a central equipment building to control remote I/O boxes at up to 24 wellheads. Each well operates independently – maintenance on one well does not affect the others – and you can add wells without replacing the entire system.

Q5: What power options are available for your WHCPs?

A: We offer multiple power options:

• Grid‑powered – 110/220 VAC with battery backup (8+ hours)

• Solar‑powered – low‑power design (<50 W), solar array sized for local insolation, deep‑cycle battery bank with 5–10 days autonomy, charge controller with over‑voltage protection

• Pneumatic – 150 PSI compressed air supply (no electrical power required)

• Hydraulic – from the platform or facility hydraulic system

• Hybrid – combination of grid + solar + battery for maximum reliability

Q6: What is the maximum number of wells one master panel can control?

A: Our standard multi‑well master‑local system controls up to 24 wells. The master panel communicates with remote I/O termination boxes at each wellhead via hardened digital links (Ethernet, fibre optic or RS‑485). Each remote box handles local sensor and actuator connections for its well. The system is expandable – you can add wells in the field without replacing the master panel.

Q7: Does your system comply with API 6A 21st Edition automatic closure requirements?

A: Yes. API Spec 6A (21st Edition) includes new automatic closure requirements to ensure additional protection for workers and the environment in loss of power and emergency situations. Our ESD logic is designed to meet these requirements – the SSV and SCSSV close automatically when control power is lost, hydraulic pressure is lost or any emergency trigger is activated.

Q8: What communication protocols are supported for SCADA integration?

A: We support Modbus RTU (RS‑232/RS‑485), Modbus TCP/IP, DNP3, IEC 60870‑5‑104, OPC UA and MQTT. Physical communication can be via 4G/5G cellular, satellite (Iridium, Inmarsat), fibre optic, licensed/unlicensed radio or direct Ethernet. Our WHCPs integrate with major SCADA platforms including Emerson, Siemens, Schneider Electric, ABB and Rockwell.

Q9: What is the lead time for a wellhead automation system?

A: Standard lead times from order confirmation:

• Single‑well WHCP (standard): 6–8 weeks

• Multi‑well master‑local system (up to 6 wells): 10–12 weeks

• Full‑field SCADA system (20+ wells): 14–20 weeks

• Solar‑powered, arctic or offshore packages: add 4–6 weeks

• SIL‑rated systems: add 2–4 weeks for certification documentation

Expedited delivery may be available – contact our sales team.

Q10: Do you provide operator training for wellhead automation systems?

A: Yes. For every system purchase, we include 2–5 days of on‑site training during commissioning, covering WHCP local operations, SCADA usage, alarm handling, ESD testing and basic maintenance. Digital manuals, video tutorials and remote support are also provided. Additional training (factory courses in Jingzhou, extended field training) is available at extra cost.

Q11: What is the warranty on a wellhead automation system?

A: 12 months after commissioning or 18 months after shipment – whichever occurs first. The warranty covers manufacturing defects on all components (enclosure, PLC/RTU, power supplies, solenoid valves, pressure switches, sensors). Wear parts (filters, seals, batteries) are not covered but are available as spares. Extended warranty (up to 5 years) is available for an additional fee.

Q12: Do you provide financing or leasing for wellhead automation systems?

A: Yes. For qualified buyers, we offer direct financing through partner banks (terms up to 5 years), operating leases (low monthly payments) and milestone payment plans (30/40/30). Contact our sales team for a lease proposal.