Adley Services, LLC

Onshore or offshore. Upstream, midstream, or downstream.

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About the firm

Adley Services, LLC is a Louisiana-licensed professional engineering practice specializing in oil and gas facilities engineering, process safety, and regulatory compliance. Led by Susan Frizzell, PE, the practice serves upstream, midstream, and downstream operators across onshore and offshore environments, including shelf and deepwater assets. Based in Lafayette, Louisiana, it delivers technical support nationwide and on deepwater projects situated far offshore.

Team
Small
Firm type
Process Safety Engineering · Process Engineering · Mechanical Engineering · Electrical Engineering

People

Susan FrizzellPresident and Principal Engineer

Adele F. MayeauxSenior Project Engineer

Brad FrizzellSenior Electrical Engineer and Partner

Marcus StellyLead Designer, Drafting Department

Capabilities

Facilities Engineering and Design

Service website

Provides comprehensive design services for production and gathering assets from wellheads to pipelines. This includes engineering separators, heat exchangers, dehydration equipment, compression setups, liquid storage, relief systems, water disposal systems, and interconnecting piping across onshore and offshore locations.

  • Offshore and Onshore Facilities Design

    Engineering single and multiple well site systems, processing installations, and gathering networks in both land-based and marine shelf or deepwater environments.

  • Industrial and Refining Facility Engineering

    Providing design engineering for oil refineries, chemical processing units, and general manufacturing facilities.

Process Hazards Analysis Facilitation

Service website

Evaluates potential process risks and equipment failures to safeguard personnel and assets. This practice deploys experienced guides, facilitators, and scribes to lead reviews that meet federal regulatory mandates and internal corporate standards.

  • HAZOP and HAZID Studies

    Conducting systematic hazard and operability studies alongside hazard identification reviews for complete facilities.

  • What-If Analysis and Revalidations

    Facilitating qualitative risk assessment reviews and revalidating existing safety evaluations to capture process modifications.

Production and Electrical Safety System Compliance

Service website

Evaluates electrical and production safety designs against state and federal regulations for upstream installations. Technical support includes independent professional engineering reviews, drafting required compliance drawings, and preparing submittal packages.

  • BSEE Regulatory Submittals

    Preparing and drafting modification requests, drawings, and formal compliance packages for submittal to offshore safety regulators.

  • Electrical Safety Reviews

    Auditing facility electrical systems, instrumentation, and emergency shutdown controls to verify adherence to current safety codes.

Management of Change Reviews

Service website

Assesses process, equipment, and operational modifications to prevent the introduction of new hazards or the escalation of existing risks. This covers both minor system updates and major capital projects to ensure full alignment with process safety protocols.

  • PSM Standard Alignment

    Verifying that equipment and technology modifications satisfy OSHA process safety management requirements.

  • MOC Action Item Resolution

    Researching technical options, engineering solutions, and procurement details to close out open safety audit findings.

Production Optimization

Service website

Analyzes existing topsides infrastructure and piping networks to identify bottleneck relief opportunities. By modeling flowlines and processing paths, the practice helps operators achieve higher throughput with minimal physical modifications.

  • Flowline and Network Modeling

    Evaluating multi-facility field piping and process paths to determine optimal routing and fluid behavior.

  • Shutdown Philosophy Reviews

    Assessing control and emergency shutdown logic to minimize nuisance trips while maintaining safety integrity.

Process Safety Management

Service website

Evaluates, designs, and enhances comprehensive safety programs for high-hazard industrial environments. This work includes field walk-downs and close collaboration with operations staff to build durable safety cultures.

  • OSHA 1910.119 Auditing

    Performing comprehensive compliance audits of process safety management programs against federal standards.

  • Audit Finding Solution Packages

    Developing engineered packages to systematically resolve and close out gaps identified during safety audits.

Professional Staffing Services

Service website

Provides vetted technical and engineering personnel for office-based and field-based roles. The recruitment and testing process aligns qualified contractors with specific project requirements and operational cultures.

  • Technical Contractor Vetting

    Screening, testing, and verifying the technical qualifications of engineering candidates for contract roles.

  • Workforce Solution Administration

    Managing background screening, drug testing, payroll, and employer tax responsibilities for deployed technical personnel.

Specialized Engineering and Inspections

Service website

Delivers targeted technical assessments, specialty inspections, and auxiliary designs across mechanical, structural, and pipeline disciplines.

  • API 653 and STI Tank Inspections

    Performing formal structural integrity and safety inspections of storage tanks in accordance with industry standards.

  • Subsea Tie-In and Pipeline Design

    Engineering pipelines, marine risers, and subsea connections to satisfy department of transportation and interior regulations.

  • Fit-for-Service Evaluations

    Assessing aging or damaged equipment to determine its structural and operational suitability for continued service.

Industries

Oil & Gas · Petrochemical · Industrial · Infrastructure

Projects

No projects listed yet.