Remote Procedure Writing for Oil & Gas Projects and Operating Facilities
Sulphurtech International Services Ltd provides remote procedure development and on-site P&ID field checks for oil & gas projects and operating assets.
We create clear, field-ready procedures for commissioning, startup, shutdown, operations, maintenance and HSE – so your teams can work safely and consistently from day one.
We Help:
Projects & EPCs
EPCs and project teams preparing for pre-commissioning and commissioning
Owners & Operators
Owners and operators of existing facilities standardizing or updating procedures
P&ID Verification
Sites that need verified, as-built P&IDs before writing or updating documentation
Who We Work With
Whether you're bringing a new facility online or operating a mature asset, Sulphurtech helps you turn drawings, standards and field knowledge into structured, usable procedures.
Projects & EPCs
- •Pre-commissioning and commissioning procedures
- •System-based startup and shutdown procedures
- •DCS, ESD and SIS functional test procedures
- •Documentation support for handover to owners/operators
Operating Facilities
- •Updating and standardizing existing procedures
- •Filling gaps in startup, shutdown and emergency procedures
- •Aligning SOPs with current P&IDs, alarms and controls
- •Capturing "tribal knowledge" into controlled documents
Services
Comprehensive procedure development services for every phase of your facility lifecycle
Commissioning & Pre-Commissioning Procedures
Typical Deliverables:
- •Mechanical completion and system walkdown procedures
- •Flushing, chemical cleaning, air blow and steam blow procedures
- •Gross air leak, hydrostatic and pneumatic leak test procedures
- •Utility system commissioning (air, nitrogen, water, steam, fuel gas, firewater)
- •Rotating equipment commissioning (pumps, compressors, turbines, fans)
- •DCS / ESD / SIS functional test and proof test procedures
Why It Matters:
We build system-based commissioning procedures that follow your system breakdown structure and match the way your commissioning teams work in the field.
Startup & Shutdown Procedures
Typical Deliverables:
- •Initial startup / first oil / first gas procedures
- •Normal unit and train startup and shutdown procedures
- •Equipment-specific startup/shutdown (pumps, compressors, fired heaters, boilers)
- •Inerting, nitrogen purging, oxygen-freeing and pressurization procedures
- •Controlled depressurization and blowdown procedures
- •Startup sequencing and interlock verification procedures
Why It Matters:
Procedures are written with clear prerequisites, hold points, interlock notes and safety warnings to support real-world execution.
Operations & Standard Operating Procedures (SOPs)
Typical Deliverables:
- •Normal operating procedures for process units and trains
- •Tank farm, storage and transfer procedures
- •Truck, rail and ship loading/unloading procedures
- •Routine monitoring, shift-round and logbook procedures
- •Sampling and laboratory interface procedures
- •Alarm response and abnormal situation response procedures
Why It Matters:
We convert scattered notes and local habits into consistent, controlled SOPs that new and experienced operators can follow.
Maintenance & Integrity Procedures
Typical Deliverables:
- •Routine and preventive maintenance procedures
- •Isolation, draining, line breaking and vessel opening procedures
- •Pump, compressor and rotating equipment overhaul procedures
- •Valve, PSV and control-valve maintenance procedures
- •Heat exchanger cleaning (mechanical and chemical) procedures
- •Inspection / NDE and corrosion monitoring procedures
Why It Matters:
Maintenance procedures are aligned with your PTW, LOTO and isolation standards to reduce confusion between maintenance and operations.
HSE, PTW & Emergency Procedures
Typical Deliverables:
- •Permit-to-work (PTW) and lockout/tagout (LOTO) procedures
- •Confined space entry, hot work, lifting and working at height procedures
- •Gas testing and atmosphere monitoring procedures
- •Site emergency response procedures
- •Fire, gas release, spill and loss-of-containment response procedures
- •Emergency shutdown (ESD), emergency depressurization and evacuation procedures
Why It Matters:
We align operations and HSE documentation so that safety expectations are clear and consistent across your site.
Pipeline & Field Operations Procedures
Typical Deliverables:
- •Pipeline startup, shutdown and line-pack procedures
- •Pigging procedures
- •Leak detection and response procedures
- •Well startup, shutdown and testing procedures
Why It Matters:
For clients with both plant and pipeline assets, we harmonize procedure format and structure across plants, pipelines and fields.
Governance, MOC & Document Control
Typical Deliverables:
- •Procedure development and approval workflows
- •Procedure formatting and numbering standards
- •Review and update cycle procedures
- •Integration with your document management system
Why It Matters:
Beyond writing procedures, we help you manage them – so they stay accurate as your facility and controls evolve.
Commissioning and Start Up Services within the Oil and Gas Industry
Typical Deliverables:
- •End-to-end commissioning planning and execution support
- •Pre-commissioning and commissioning coordination
- •System turnover and punch list management
- •Performance testing and verification
- •Safe startup planning and execution
- •Troubleshooting and optimization during startup phase
Why It Matters:
We provide hands-on commissioning and startup support to bridge the gap between construction completion and stable operations, ensuring safe and efficient facility startup.
Completions Management System (CMS)
Typical Deliverables:
- •Web-based completions tracking and management platform
- •Real-time project completion status and reporting
- •System turnover and punch list tracking
- •Commissioning progress monitoring and dashboards
- •Document management and certification tracking
- •Multi-project and multi-discipline support
Why It Matters:
Our cloud-based Completions Management System gives your team full visibility into project completions, punch lists, and system turnovers -- so nothing falls through the cracks during commissioning and handover.
Learn MoreSulphur / Sulphur Bentonite Forming Technology Consulting
Typical Deliverables:
- •Sulphur forming process design and optimization
- •Sulphur bentonite formulation and process consulting
- •Equipment selection and specification
- •Process troubleshooting and performance improvement
- •Quality control and product specification support
- •Technology transfer and training
Why It Matters:
Specialized expertise in sulphur and sulphur bentonite forming technologies to help you optimize production, improve product quality, and solve process challenges.
TransmittalProof — Tamper-Evident Document Release & Verification
Typical Deliverables:
- •Controlled PDF distribution for drawings, manuals, reports, and turnover packages
- •SHA-256 fingerprinting and tamper-evident release records anchored on XRPL
- •Public verification pages with QR-linked proof paths for field and office use
- •Three verification models: standalone drawing proof, full issue releases, and hybrid releases with sheet-level traceability
- •Three-step workflow: Prepare, Release, Verify
- •Works alongside SharePoint, ProjectWise, Aconex, or any existing DMS
Why It Matters:
Release the right documents. Prove it later. TransmittalProof gives engineering and site teams a plain-language answer to "how do we know this was the issued copy?" Field teams can verify authenticity independently -- no reliance on email chains or file system integrity.
Learn More About TransmittalProofWhat We Deliver
Procedure Types We Write & Rewrite
21 procedure types across four families - covering operations, safety, maintenance, and management for upstream, midstream, and downstream oil & gas facilities.
Operations Procedures
Routine, transitional, and upset operations
- 01
Standard Operating Procedure (SOP)
Routine operation of equipment or systems
- 02
Start-Up Procedure
Bringing a system or unit online from cold/warm/hot state
- 03
Planned Shutdown Procedure
Taking a system or unit offline in a controlled manner
- 04
Emergency Shutdown Procedure (ESD)
Response to an ESD event - immediate safe-state actions
Safety Procedures
Hazard control, permits, and emergency response
- 08
Permit to Work (PTW)
Authorization framework for non-routine or hazardous work
- 09
Job Safety Analysis (JSA) / Task Hazard Analysis (THA)
Pre-task hazard identification and control
- 10
Energy Isolation Procedure (LOTO)
Lockout/tagout and isolation of energy sources
- 11
Confined Space Entry Procedure
Safe entry into classified confined spaces
Maintenance Procedures
Preventive, corrective, and inspection workflows
- 16
Preventive Maintenance Procedure
Scheduled, condition-based, or time-based maintenance tasks
- 17
Corrective Maintenance Procedure
Repair of failed or degraded equipment
- 18
Inspection & Testing Procedure
Functional testing of SRVs, instruments, ESD valves, detectors
- 19
Equipment Decommissioning Procedure
Removing equipment from service safely
Management Procedures
Change control and incident governance
- 20
Management of Change (MOC)
Controlling changes to equipment, process, or documentation
- 21
Incident Investigation Procedure
Structured response and investigation after an incident or near-miss
One consistent structure. Every procedure type.
Each procedure we deliver follows the same 12-section spine - from purpose through revision history. The body content is tailored to the procedure type, but the structure stays consistent so your operators always know where to find what they need.
Header Block
Procedure No. | Rev | Date | Author | Approver
Purpose
Scope
References
Definitions / Abbreviations
Responsibilities
Safety Precautions / Hazards
Tools / Materials / Permits
Pre-Task Requirements
Procedure Steps
Main body - varies by type
Post-Task Requirements
Documentation / Records
Revision History
Every procedure includes clear steps, safety warnings, hold points, and sign-offs - formatted for field use and aligned with your site standards.
Service
Operating Manuals - System by System
Field-ready operating manuals built around how operators actually think and work. One consistent structure applied to every system in your facility - inlet separation, compression, dehydration, amine treating, utilities, and beyond.
Section 1
Overview
- System purpose and design intent
- System boundaries (inlet / outlet)
- Design basis - capacity, pressure, temperature
- Upstream and downstream interfaces
Document Control Block
Manual No.
Revision
Date
Author
Reviewed By
Approved By
P&ID Refs
Related SOPs
Every manual opens with a control block for revision tracking, approvals, and cross-references to drawings and procedures.
The Approach
Why This Format Works
Built around how operators actually think and work, not how engineers document systems.
Operator-First Language
Written to be read and used in the field, not archived in a cabinet. Every section answers a real operator question.
Consistent Across Systems
Every system gets the same structure. Operators learn the format once, then apply it to every system in the plant.
Safety Integrated Throughout
Hazards, interlocks, and safe-state actions aren't bolted on at the end - they're embedded where operators need them.
Training-Ready From Day One
Skill-testing questions are built into every manual, so each document doubles as a training resource.
Tied to Your Documents
Cross-references P&IDs, datasheets, C&E matrices, and procedures - keeping the manual connected to your engineering package.
Commissioning to Operations
Structured to support first-fill, start-up, and handover - not just steady-state operation. Works across the full lifecycle.
Every section answers six questions
We hold every paragraph of every manual to the same six-question test. If a section can't answer them, it gets rewritten until it can.
P&ID Field Checks & As-Built Redlining
On-site P&ID field verification to ensure your drawings match the plant as it actually exists
Sulphurtech International Services Ltd provides on-site P&ID field checks to ensure your drawings match the plant as it actually exists in the field.
We travel to your site, walk down systems line by line, and redline your existing P&IDs to reflect true as-built conditions before or during commissioning and startup.
On Site, We:
Deliverables
- •Marked-up / redlined P&IDs based on field walkdowns
- •Summary of key discrepancies and issues affecting operations or procedures
- •Priority list of changes to update in the master drawing set
- •Optional: integration of as-built information into your procedures
When to Use This Service
- •Before pre-commissioning and commissioning
- •Prior to initial startup / first oil / first gas
- •During revamps and debottlenecking projects
- •When drawings are known to be outdated or inconsistent with the field
Add-On Option
Combine P&ID field checks with procedure development so all new procedures are written against verified, as-built drawings.
How It Works
A straightforward, 5-step process
Scope & Documents
You provide P&IDs, PFDs, cause & effects, line lists, data sheets and your internal standards (HSE, PTW, isolation, templates).
Procedure List & Boundaries
Together we define the procedure list, system boundaries, assumptions and any regulatory or client requirements.
Drafting
Sulphurtech develops procedures in your preferred format, structured for field use with clear steps, checklists, cautions and notes.
Review & Revision
Your SMEs review. We incorporate comments and issue controlled revisions (Rev.0, Rev.1, etc.).
Ongoing Support (Optional)
After commissioning or operational use, we can update procedures with lessons learned, MOC changes and feedback from the field.
For P&ID Field Checks
We simply add an initial step:
Optional Step 0 – P&ID Field Verification
We attend site, perform P&ID walkdowns, redline drawings, and then use those as-built P&IDs as the basis for new or updated procedures.
Pricing
Pricing can be tailored to each project, but the guide below shows how Sulphurtech typically structures costs
Remote Procedure Development
Per-Procedure Pricing (Typical Ranges)
Simple Procedures
Short, low-complexity procedures (e.g., simple start/stop, basic isolation, basic sampling)
Typical effort: ~3–5 hours
From CAD 600 per procedure
Standard System Procedures
System-level or moderate complexity procedures (e.g., system startup/shutdown, utility system commissioning, standard flushing or leak tests)
Typical effort: ~6–10 hours
From CAD 1,200 per procedure
Complex / Integrated Procedures
Multi-system or unit-level startup/shutdown, integrated commissioning sequences, major emergency procedures, plant-wide ESD/black-start etc.
Typical effort: 12–20+ hours
Custom quotes based on scope
Note: Bundle pricing is available for clients who need complete sets of procedures for a new unit, train or facility.
P&ID Field Checks & As-Built Work
Because this work involves site travel and field time, it's usually priced on a day-rate basis plus expenses.
On-site day rate:
From CAD 1,600 per day
plus travel and living expenses
Live Bluebeam Sessions
All field P&ID checks and as-built work are conducted using live Bluebeam sessions, allowing your team to view markups and progress in real time as work is carried out on site. This provides full transparency and verification that the scope is being completed accurately — without the need to send additional personnel into the field for oversight.
Includes:
- •Field walkdowns
- •Redlined P&IDs
- •A short issues summary
Office time for final documentation:
- •Included in the agreed day rate, or
- •Billed at the remote consulting rate, by agreement
About Sulphurtech International Services Ltd
Sulphurtech International Services Ltd is focused on helping oil & gas projects and operating facilities turn engineering information into practical, field-ready documentation.
Founded on Deep Industry Experience
Led by Steve Lassu, a professional with over 25 years of worldwide commissioning and startup services within the oil and gas industry.
This extensive hands-on experience across global projects means we understand what works in the field – from greenfield developments to brownfield modifications, from upstream facilities to downstream processing.
Our Goal
To bridge the gap between engineering intent and plant reality – so your teams can execute safely, efficiently and consistently.
Contact
Ready to discuss your project or facility?