Patrick A. Villareal
Houston,TX
Summary
Experienced in the petrochemical, refinery, offshore, power and midstream industry. Experience includes pipe design, plant layout, acquiring field data, checking, design supervision, preparing job scope and definition in accordance to client requirements and specifications for projects, scheduling, and coordinating design and modeling with Global Engineering Centers.
Overview
2026
2026
years of professional experience
Work History
Checker/QC
Conoco Phillips Willow Project
Houston
01.2018 - 01.2026
- Assigned to Detail Design project for checking of E3D piping specifications against client specifications for model database, Modeled Equipment versus Vendor Equipment drawings, Isometrics for IFC and Quality Control. Working areas include Sealift Modules for Willow Central Facilities, Drill Site Modules, Truckable Piperack Modules and Off Module piping along with loading and unloading locations.
- Ensured accuracy in product measurements and specifications during quality checks.
Design Lead
Celanese
Houston
01.2018 - 01.2026
- Seconded to major capital projects group to help develop new project scope along with design oversight to selected engineering firms for FEED and Detail Design deliverables. Supported project design leads for piping, structural and mechanical to help ensure Celanese standards and specifications were adhered to. Provided model and drawing reviews throughout engineering phases. Project Waterbug – Pre-dehydration column addition, Bay City Texas facility completed Detail Design. Project Green – Methanol Expansion CO2 Capture, Clear Lake facility through completion of construction and commissioning.
Design Lead
Motiva
Houston
01.2018 - 01.2026
- OSBL Polymers FEED Project responsible for developing new OSBL utilities, chemical storage, water treatment and purification, railcar yards, flares and cooling tower plot plan layouts for multiple proposed site locations and capacity arrangements to interface with proposed new Polymers Unit. Provided client assistance for developing scope of work for project field tie ins and pipe routing in existing areas. Coordinated S3D modeling efforts and Piperack module design assistance for our GEC office.
Piping Design Lead
ExxonMobil Flare Gas Recovery Project
Houston
01.2018 - 01.2026
- Responsible for developing new OSBL plot plan layouts for new flare drum knock out drums, new gas ejector structure and new piperack routes and modifications. Provided client assistance for developing scope of work for project field tie ins and pipe routing in existing areas. Coordinated 3D modeling efforts, model reviews, laser scan scope and Piperack design for our GEC office.
- Mentored junior designers, fostering skill development and encouraging best practices in project execution.
Sr. Piping Designer/Checker
Amec Foster Wheeler
Houston
01.2007 - 01.2018
- Upstream experience includes: BP Mad Dog Phase 2 FEED; responsible for PDMS modeling of piping and associated equipment for oil system, compressor trains and hydrocyclones. Other PDMS projects; Chevron MSP project piping and equipment PRE-FEED and FEED studies, Exxon/Mobil Kizomba A/B FPSO’s new produced water module and new air coolers piping and equipment which also incorporated the use of LFM server and point cloud data.
- Mid and Downstream projects include: preparing Bentley Autoplant piping and equipment models for Enogex Bennington Compressor Station Project and BHP Billiton Gathering Facility Phase 2. Design for BHP Billiton Truck Loading Facility.
- Checking for DOW Freeport Poly 5 Infrastructure Project, DOW Seadrift LP-2 Debottleneck, Total PAR Butylene Revamp and Reliance Industries LTD Coke Drum Replacement.
Sr. Piping Designer/Checker
S & B Engineering
Houston
01.2003 - 01.2007
- Assigned to the BP task force for checking and designing of capital projects for Texas City Refinery, Texas City Chemicals and the Cherry Point Refinery in Blaine Washington. Involved in various stages, including estimating, detail design, and construction follow through.
Sr. Piping Designer/Checker
Lauren Engineers & Constructors, Inc.
01.2001 - 01.2003
- Designed Cogeneration Project OSBL piping to in-plant tie-in points, some rack piping was module concept design. Checking responsibilities included additional power cogeneration projects, solid stating polymers project and a gas-oil hydro-treating unit. Piping, equipment and structural models.
Sr. Piping Designer
Taylor & Hill, Inc.
01.2000 - 01.2001
- Contract work for BP Refinery: located on site to provide design of small projects, operations communications, and construction follow through.
Piping Job Leader
CDI Engineering, Inc.
01.1999 - 01.2000
- Contract work for Bayer Corporate Baytown: prepared job scope and definition for new capital projects: layouts, design, operations communications, and construction follow through.
Sr. Piping Designer; Drafting/Site Representative
Taylor & Hill, Inc.
Houston
1996 - 1999
- Contracted to Amoco/BP Texas City: Managed and coordinated the overall site administration and programs for all Taylor & Hill employees, scheduled and coordinated design and drafting work, secured the staffing levels to support plant maintenance and project backlog. Responsible for checking and design of small capital and expense work both for piping and structural.
Lead Designer/Checker
Phoenix Engineering Inc.
01.1991 - 1996
- Provided design for all marine vapor control systems, included safety and injection skids, blower skids, equipment location plans and all interconnecting piping. Other work included plant layout, truck loading facilities and tank vent collection projects. Also provided all civil/structural drawings required for project.
Lead Piping Designer/Squad Leader
S & B Engineering
01.1989 - 01.1991
- Assignment for renovation of a unit at TPC Corporation: responsible for locating new major equipment, including boilers, fired heaters, compressors and exchangers. Scheduled and assigned work. Checked piping orthos and isometrics for a marine vapor recovery project.
Sr. Piping Designer
GDS Engineering
01.1984 - 01.1989
- Responsible for complete piping and mechanical design and drafting of in-house and on-site revamp projects. Provided piping estimates for clients. Most assignments were for Exxon Baytown Refinery Exxon Baytown Olefins Plant and Exxon Chemicals Plants.
Piping Designer/Draftsman
Petromas Inc.
01.1981 - 01.1984
- Designed and drafted piping orthos, elevations, isometrics, P&IDs and mechanical transition pieces. Assigned to in-plant job follow through and miscellaneous work order projects.
Draftsman
Stubbs Overbeck & Associates
01.1980 - 01.1981
- Provided walk down to produce system isometrics, P&IDs, and various flow charts for Monsanto, Chocolate Bayou.
Draftsman/Checker
Southwest Pipe Fabricators
01.1979 - 01.1980
- Drafting and checking of pipe fabrication spools from isometrics.
Education
Coursework -
San Jacinto Junior College
Houston, TX01-1979
Skills
- E3D/PDMS (Piping & Equipment)
- AutoCAD
- Microstation
- Navisworks Simulate & Freedom
- Bluebeam Revu
- Intergraph PDS (Piping & Equipment Models)
- LFM Server & Point Cloud
- Isogen
- Quantapoint Scans
- SmartPlant Review
- Bentley Autoplant (Piping & Equipment)
- Excel
- Word
Timeline
Checker/QC
Conoco Phillips Willow Project
01.2018 - 01.2026
Design Lead
Celanese
01.2018 - 01.2026
Design Lead
Motiva
01.2018 - 01.2026
Piping Design Lead
ExxonMobil Flare Gas Recovery Project
01.2018 - 01.2026
Sr. Piping Designer/Checker
Amec Foster Wheeler
01.2007 - 01.2018
Sr. Piping Designer/Checker
S & B Engineering
01.2003 - 01.2007
Sr. Piping Designer/Checker
Lauren Engineers & Constructors, Inc.
01.2001 - 01.2003
Sr. Piping Designer
Taylor & Hill, Inc.
01.2000 - 01.2001
Piping Job Leader
CDI Engineering, Inc.
01.1999 - 01.2000
Lead Designer/Checker
Phoenix Engineering Inc.
01.1991 - 1996
Lead Piping Designer/Squad Leader
S & B Engineering
01.1989 - 01.1991
Sr. Piping Designer
GDS Engineering
01.1984 - 01.1989
Piping Designer/Draftsman
Petromas Inc.
01.1981 - 01.1984
Draftsman
Stubbs Overbeck & Associates
01.1980 - 01.1981
Draftsman/Checker
Southwest Pipe Fabricators
01.1979 - 01.1980
Sr. Piping Designer; Drafting/Site Representative
Taylor & Hill, Inc.
1996 - 1999
Coursework -
San Jacinto Junior College