Managing Simultaneous Operations in High-Risk Industries with PEER
In high-risk industrial operations such as oil and gas, petrochemicals, and energy facility construction, the phenomenon of Simultaneous Operations (SIMOPS) poses significant challenges. When multiple tasks occur in the same area like hot work, lifting, confined space entry, and logistics, the potential for risk conflicts escalates dramatically. Without clear controls, SIMOPS can lead to catastrophic outcomes, including loss of containment, ignition source exposure, and even fatal accidents. Thus, SIMOPS transcends mere scheduling coordination; it is a critical risk management discipline that governs the interactions between activities to prevent the creation of new hazards.

The Complexity of SIMOPS
In single operations, risks can often be directly analyzed from the activity itself. However, in SIMOPS, risks emerge from the interactions between concurrent tasks. For instance, consider the following scenarios:
- Hot work near flammable material storage
- Lifting operations above evacuation routes
- Commissioning electrical systems while mechanical work is still ongoing
- Blasting pipes concurrently with confined space activities
Each of these tasks may be safe in isolation, but when combined, they can generate new, unrecognized risks that were not identified in the initial Job Safety Analysis (JSA). This is where SIMOPS becomes a vital control mechanism to identify, evaluate, and manage activity conflicts.
Implementing Effective SIMOPS Risk Assessment
Conducting a SIMOPS risk assessment is essential before work commences and should be updated regularly throughout the project. Common approaches include:
- Identification of Simultaneous Activities: Mapping all tasks that could potentially occur together in the same operational area.
- Risk Interaction Analysis: Evaluating whether Activity A could trigger hazards for Activity B.
- Conflict Risk Assessment: Assessing the likelihood and consequences of two activities colliding.
- Operational Control Establishment: This includes work zone restrictions, scheduling adjustments, additional supervision, or halting activities.
Typically, the SIMOPS risk assessment is led by a SIMOPS coordinator alongside teams from operations, engineering, and Health, Safety, and Environment (HSE).
Challenges and Solutions in SIMOPS Management
One of the primary challenges of SIMOPS is the multitude of stakeholders involved, including contractors, subcontractors, facility operators, and commissioning teams. Effective interface management is crucial to ensure:
- No work proceeds without the knowledge of other parties.
- Schedule changes are communicated promptly.
- Activity conflicts are identified before they occur on-site.
Common practices include daily SIMOPS meetings, an interface register among contractors, a shared work schedule or integrated planning board, and appointing a SIMOPS coordinator as a single control point. Without strong interface management, work often proceeds in silos, leading to significant activity conflicts.
The Role of Control Rooms in SIMOPS
In active operational facilities, control rooms play a pivotal role in overseeing SIMOPS. Their functions typically include:
- Monitoring ongoing activities.
- Ensuring active permits align with operational conditions.
- Granting approvals before work begins.
- Halting work when operational conditions change.
The control room also serves as a communication hub during abnormal situations, such as increased gas concentrations or pressure changes in process alarms affecting the work area. Poor coordination between the field and control room can lead to unsafe work continuing despite hazardous conditions.
Permit to Work (PTW) System: The Backbone of SIMOPS Control
The Permit to Work (PTW) system is fundamental to controlling SIMOPS. However, when multiple permits are active simultaneously, a clear prioritization structure is essential. A common hierarchy of permits includes:
- Level 1 – Critical Permit: Hot work in hydrocarbon areas, confined space entry, electrical isolation.
- Level 2 – High-Risk Work: Lifting operations, working at height, excavation.
- Level 3 – Routine Work: Light maintenance, visual inspections.
In SIMOPS, activities with high-level permits typically receive priority control. Other activities may need to be postponed or relocated to avoid risk conflicts.
Recognizing When to Stop Work
Certain conditions should be viewed as indicators for immediate work stoppage (stop work authority). Examples include:
- Unidentified permit conflicts, where two high-risk permits are active in the same area without SIMOPS evaluation.
- Process condition changes, such as alarm triggers or increased gas detection.
- Safety barriers being compromised, such as malfunctioning fire protection systems or gas detectors.
- Communication breakdowns between the control room and field personnel.
- Critical activities lacking competent supervision.
When these red flags arise, work must cease until a thorough reevaluation is conducted. Many significant industrial accidents occur not due to a single hazardous activity but because of poorly managed combinations of activities.
Creating a Culture of Safety in SIMOPS
Effective SIMOPS requires cross-disciplinary planning, real-time coordination, a robust permit system, and a culture of open communication. Without these elements, the simultaneous execution of tasks can shift from operational efficiency to becoming the largest source of risk in a project.
To enhance your organization’s management of SIMOPS, consider integrating PEER, a comprehensive WSH management system that streamlines compliance with health and safety regulations. With modules for Personnel Management, PTW Management, Inspection, Asset Management, Quality Control, and Workflow, PEER provides the tools necessary to effectively manage risks associated with simultaneous operations.
By leveraging PEER, organizations can ensure that all activities are coordinated, risks are assessed and mitigated, and safety remains the top priority in high-risk environments.





