Mark Hensley36714 Canyon Rd, Wallis , TEXAS 77485

Seaggie1@gmail.comPh: (832) 865-0127

Summary

15 years of experience in design of subsea pipelines and structures, constructionmanagement, and construction material inspection. I have extensive experience in Finite Element Analysis design and installation of subsea pipelines, jumpers, pipe-in-pipe systems, fixed platform risers and subsea structures. My experience also includes extensive experience with pipeline span analysis and remediation post-installation pipelines. The last 5 years has been on the continual improvement of the company analysis practices by developing Excel programs to improve the analysis of FEA program results. These improvements resulted in the reduction of time engineers needed to evaluate FEA results. Along with supporting departments engineering program needs, I have also served as an in house technical specialist consultant to help evaluate technical challenges a project may have and provide guidance and support in resolving those challenges.

Skills

Extensive Knowledge of both ABAQUS and ANSYS

Programing skills in Excel VBA, Fortran and Python

Pipeline Installation Analysisusing OrcaFlex, OFFPIPE, ABAQUS and ANSYS

Jumper and rigid riser design using Caesar II

Design and Installation of pipeline span remediation

Highly proficient in Microsoft Word and Excel

Excellent Communication skills

Skilled Technical Writer Experienced in MATLAB and

Mathcad

Experience

Senior Pipeline Engineer Jan 2015-PresentDORIS, INC Houston, TX

Chevron Nsiko Project - Work with the pre-feed team to prepare RFQ and work

scope packages to develop a class 1 cost estimate of the subsea fielddevelopments for the project.

Senior Engineer III Jan 2009-Dec 2014PEGASUS INTERNATIONAL, INC Houston, TX

ENI Petroleum Milan Kashagan Project FEED Design - Performed the risershore approach design for the 28" sour service Oil and Gas export lines fromIsland "D". The riser shore approach design included studying the effects ofboth artificial island settlement and ice rubble loadings on the end of theriser.

ENI Petroleum USA Block Tee and Elbow Design - ENI Petroleum requested adesign and specification for a general block tee and Elbow with a maximuminternal pressure rating of 10,000 psi. The analysis was performed to ASMESection VIII Division 2 and prepared a design package, which included bothwritten specifications and fabrication drawings.

EMAS AMC Cascade Chinook Installation - Provided third party FEAverification of subcontractor analysis of the flexible riser hang off stands.Ensured that the subcontractor applied correct loadings and followed API RP2A design code.

Shell BC-10 Project - Performed Installation analysis to determine the stressinduced into the pipe of a inline sled as it passes over the stinger of the Lorelaypipe lay vessel and at the seabed touchdown point. The analysis was done toprovide Shell and Allseas a second opinion regarding the stress results fromAllseas' internal installation analysis.

HESS: (West Africa) Okume Span Monitoring Program - Helped the Clientsoperations team with the experience and knowledge from the initial spanmitigation campaign to determine that the flowlines in the field wereexperiencing continued seabed erosion due to the high currents in the area.

Weir Seaboard - Performed detailed FEA analysis of the OVERSHOT Connectordesign for Shell Deepwater. The analysis consisted of demonstrating that thestresses in the OVERSHOT connector would not fail due to the forces andmoments induced into the system from the pressure containment end cap loads.

ENI Petroleum USA Various Projects - Served as technical advisor on severalsimultaneous projects. I supervised junior engineers performing calculationsfor flowline thermal expansion and lateral buckling. Along with overseeingthose calculations, I also supervised junior engineers performing bottomroughness analysis in the FEA code Abaqus.

MURPHY E&P CO. Thunder Hawk Gas lift Project – Performed a local CFDanalysis to determine the effects of the gas being cycled through a smallorifice tee into the larger diameter jumper to determine the fatigue effects onthe tee caused by increases and decreases in flow rates and pressures.

Shell E&P West Boreas PLET Stress Joint Assessment – Responsible for thedetailed FEA assessment of the pipe in pipe stress joint flange for the endPLETs. This assessment detailed the analysis of the stress joint, connectingbulkhead and the PLET piping to ensure that no localized stressintensifications occur during installation and the effects of the operationalloads on the stress joint/ bulkhead location.

Bluewater Industries Clipper Bulkhead/ Anchor Flange Assessment –Responsible for the detailed FEA assessment of the pipe in pipe end bulkheadwhich acts as the anchor flange for the end PLETs. This assessment detailed theanalysis of the bulkhead and the surrounding PLET structure to ensure that nolocalized stress intensifications occur during installation and the effects ofthe operational loads on the bulkhead location where the inner and

outerpipes transition into the anchor flange.

MURPHY E&P Co. Dalmatian Field Development – Responsible for themechanical design of the Pipe-In-Pipe oil flowline, which entailed performingboth the in place analysis, preliminary end bulkhead design and correlatingwork performed by others into the final mechanical design report. Workingwith AUV detailed digital terrain models in the Fleadermaus softwarepackage, processed detailed 3D route contouring models for use as the seabedsurface in Abaqus. This process provides the In-Place analysis performed in Abaqus a more realistic seabed surface to identify areas of spanning and arealistic pipe movement on the seabed due to the irregularities of the seabed. Using the seabed contours, performed the analysis for the pipe-in-pipe oilflowline in place assessment to identify location of possible pipelinespanning and pipeline snaking if any occurs. The end bulkhead analysis was apreliminary assessment of a typical transition end bulkhead using both theworst case installation operation loads to determine the bulkhead limits.Along with the mechanical design of the pipe-in-pipe oil flowline, performedthe detailed bottom roughness and free span analysis for the single pipe gasflowline. This analysis required the identification of multiple spans thatexceeded the onset criteria for both in-line and cross flow VIV. After the spanswere identified, the fatigue life for each span was determined using FATFREE,which was verified by DNV third party verification consultants. During theconstruction phase of the project, the client became worried about thelocation of the wellhead relative to the planned location of the PIP PLET. Using Fleadermaus and using 3D models developed by both the in-housedesigners and third party vendors a true 1 to 1 scale of the entire well locationwas modeled. This allowed the team to study the seabed slope angles at thelocation of all the equipment to be installed to check the install ability of theequipment, which helped to identify locations needed rectification.

Fluor – Secondment to Fluor Corporation to perform high pressure/ hightemperature analysis on several field development projects. Performed andprovided guidance to others regarding the proper analysis of high pressure/high temperature analysis. Also provided technical guidance on the use ofSageProfile3D for the analysis of pipeline bottom roughness to ensure thedifferent pipelines did not exceed allowable free span lengths.

Noble Galapagos Field Development Flowline – Provided third party designreview of the flowlines for the Galapagos Field Development for NobleEnergy and determine if a proposed alternative method of wet insulation pipescould be used regarding of the effects of high pressure and high temperatureand the safety of the design to pipeline failure due to high stress low cyclefatigue.

PEMEX 24” Ixtal-A to Abkatun-D Pipeline Upheaval Buckling Study – Leadpipeline engineer performing upheaval buckling analysis as part of a studydetermining the effect of an upheaval buckle has on the operating pipeline. This study was to review the original upheaval buckling and expansion designand determine if the proper cover and rock heights were sufficient to preventthe buried 24” pipeline from upheaval buckling and determine what mighthave caused the pipeline to upheaval buckle. Provided guidance to teamregarding the mechanics of pipeline expansion and buckling which occur as aresult of high internal pressure and temperature. Reviewed all projectanalysis and recommendations to ensure the latest design guidelines accordingto DNV-RP F110 and to some extent SAFEBUCK where followed.

PEMEX 12” Yaxche-B to Interconnection Pipeline – Lead pipeline engineerperforming upheaval buckling analysis as part of a study determining the bestmitigation measure to ensure safe stable operation of the pipeline.

This studywas to review the original upheaval buckling and expansion design anddetermine if the proper cover and rock heights were sufficient to prevent theburied 12” pipeline from upheaval buckling. Provided guidance to teamregarding the mechanics of pipeline expansion and buckling which occur as aresult of high internal pressure and temperature. Reviewed all projectanalysis and recommendations to ensure the latest design guidelines accordingto DNV-RP F110 and to some extent SAFEBUCK where followed.

Williams Seahawk Bypass Manifold – Project piping and jumper lead engineerresponsible for the fast track design analysis and drawings for three differentjumper designs and manifold piping that was needed due to a valve blockage onthe William Seahawk PLET. Ensured timely delivery of all drawings andinterfaced with client, vendors, surveyors and fabrication yard to ensure nobottlenecks of information occurred. Because of UniversalPegasus' teameffort, Williams was able to go online by the contract stipulated date.

Senior Engineer August 2002-Dec 2009INTECSEA Houston, TX

Helped in the training of INTEC personnel and the development of severalin-house source codes for different analysis from lateral buckling to re-burialof exposed pipelines at shore crossings using ANSYS. Served on the team whichwrote INTEC's guideline on Pipe-In-Pipe design. Software champion forINTECSEA's ANSYS and SAGE Profile 3D programs from June of 2004 to 2009with duties including: coordination between the Houston office andINTECSEA's international offices to ensure optimal use of the limited licenseavailable and served as the point of contact between the software

companiesand INTECSEA.

BP GOM: Tubular Bells Project - Project technical specialist performing full3D FEA lateral buckling and expansion analysis. Part of this analysis was toreview both the vertical and lateral seabed slope gradients to determine themost likely locations for lateral buckles. Other duties included performingbottom roughness and route optimization. Routing optimization wasperformed using Fledermaus. Using Fledermaus, routing hazards wereidentified and route cross profiles were generated for use in the FEA analysis.

EXXONMOBIL: Kizomba Satellites - Project flowline engineer responsible forthe pre-FEED analysis of the Pipe-in-Pipe and water injection flowlines foraxial expansion and lateral buckling to determine whether further studyduring FEED needed to be done. Provide technical guidance to other engineerson the project in regards to pipe-in-pipe design. Performed Jumper VIVanalysis of riser base jumpers.

ANADARKO: K2 Field Extension - Project flowline engineer responsible forthe re-design from the original project's pipe-in-pipe system to a wet insulation system. Provided guidance on preferred routes, and determining what internal pressures current pipe stockpiles at various pipe yards couldbe rated to. This allowed the team to determine how to allot pipe to thedifferent proposed addition well flowlines, which saved the client fromhaving to purchase additional pipe. Performed bottom roughness analysis todetermine location and length of pipeline spans and determining the fatiguelife of the spans which did not meet the allowable span limits .

MURPHY EP CO: Thunder Hawk – Performed detail design Engineering for adual flowline tieback system in 6000 ft water depth. Provided technicalexperience in the field of HP/ HT flowlines to ensure a robust flowline

designover the life of the field by both performing detailed FEA analysis of theflowlines and assisting other engineers on the team with less experiencedealing with HP/ HT flowlines. Also performed the design of the exportjumper connection to the Mardi Gras Proteus and Okeanos export pipelines.

PETROBRAS: (U.S.) Canapu ESS-138 Tie-Back Design Study – Provided technicalsupport for the design of the pipe–in–pipe system, which included lateralbuckling, thermal expansion, allowable span limits and wall thickness forboth inner and outer pipes. Along with technical support, duties also includedperforming conceptual installation design to define allowable installationlimits.

AMERADA HESS: (West Africa) Okume Complex Project – Provided technicalsupport for the oversight of the installation contractors laydown initiationanalysis by performing a third party review analysis using Orcaflex. Duringpost installation ROV inspection several spans where observed. Worked withthe onshore team to develop span rectification solutions and determine thefatigue life of the spans due to the unexpected high currents.

PETROBRAS: P55 Conceptual Bundle Tow – Performed conceptual towengineering, on-bottom stability, in-place structural analysis and wallthickness calculations.

SHELL: BC-10 – Performed lateral buckling study for infield flowlines to helpclient determine needed mitigation strategy for the field development.CHEVRON: Blind Faith Field Development – Participated in the fast trackconceptual to detail design of the dual wet insulated flowline in water depthsof 7000-feet with HP/HT thermal expansion/lateral buckling issuessurrounding the short distance flowlines.

PETROBRAS: - (U.S.) Chinook to Cascade HIPPS Study – This feasibility desktopstudy for the design of a subsea field with a high integrity pressure

protectionsystem (HIPPS) in water depths of 8900-feet to 8100-feet. This study includedflowline design, cost estimates and review of current installation vessels.

PIONEER Olowi Field Development Project – This project involved the designof eight flowlines connecting two satellite platforms to a control platformwith four flowlines going to each of the two satellite platforms. Threeflowlines from the control platform to three subsea PLETs, which connected toa FSO via flexible risers. Flowline wall thickness, expansion, and lateral buckling calculations as well as the fixed platform riser designs.

ENI: K2 Field Development – The project was a subsea tie-back project thatincluded 6 miles of pipe-in-pipe flowlines connecting two subsea productionfields to the Marco Polo host platform. Writing of the subsea valvespecifications for the subsea structures and installation specificationrequirements. Along with writing specifications, engineering duties included the design and analysis of the pipe-in-pipe bulkheads, flowline span analysisand lateral buckling analysis. During the installation phase of the project, itwas observed that several spans were longer than anticipated and a team wasmobilized to address the issue. Worked as part of the onshore support teamassisting engineers offshore in the analysis of the remediation of the freespans and performed HP/HT analysis to support FEED conclusions that lateralbuckling of the flowline would not compromise the integrity of the flowline.

SHELL: Nigeria Bonga Field Development – Performed installation supportand structural analysis on water injection sleds. This required the use ofStruCAD*3D to analyze additional lifting tri-pod frames from the WT2-8 sledsalong with other structural calculations for lifting padeyes. Detailed FEanalysis of the hinge piece of the WT1 swinging door mudmat to ensure stiffing

gussets could be removed when they were found to be in conflict withstructural pipeline of the sled.

PETROBRAS: BGL-1 Stinger Redesign Verification - Engineer II – Performed astinger stress verification on the redesign of the Petrobras laybarge BGL-1using the structural software StruCAD *3D. Stinger geometry & design loadswere taken from INTEC's previous design. Structural evaluation of the upperhitches on the stinger to insure that stress concentrations will not occur. Eachupper hitch tubular member has four scalloped areas to avoid double fullpenetration welds. The scallops were analyzed using the FE program ANSYS.

ESSO: Chad – Independent review of lifting analysis utilizing the softwareprogram StruCAD *3D for the static lifting and Orcaflex for the dynamiclifting of the jacket off of a barge by a separate lifting barge; review of thejacket, deck, and yoke structure.

CHEVRON: Congo River Crossing – Performed work on a feasibility study oncrossing the Congo River canyon by way of a deepwater crossing to avoidsevere turbidity currents and mud flow. Preliminary crossing route selectionand pipeline stability analysis using an integrated method of using both staticstability analyses with dynamic FE stability analysis to ensure pipelinestability.

BP: Mardi Gras Project – Lateral tie-in equipment installation analysis,thermal expansion analysis and material take-offs. Performed a comparisonspan analysis to ensure that the route up the Sigsbee escarpment was apreferred route from a free spanning pipeline point-of-view for the MardiGras Atlantis lateral.

Civil Engineer April 2001-August 2002SUNLAND ENGINEERING COMPANY

Construction management team member working for a county engineeringdepartment's road and bridge construction division, which involvedoverseeing the construction progress, maintaining constructiondocumentation, processing change orders, facilitating changes in the design,coordinating communications between contractor, engineer's consultant, andcounty engineering officials, and running progress meetings between allparties involved in the project

As part of the design team, responsibilities included the following writingdesign specifications, drawing revisions, documentation quality control, andmaterial quantity take-offs.Design representative during the projects construction phase.Performed underground utilities route selection to ensure the routes compliedwith all city, state and federal requirements.Projects included parking lot pavement failure analysis and redesign,drainage systems, the New Bayport shipping terminal paving and force maindesigns, incorporating capital improvement projects for an airport into anupdated layout map, and various street improvement designs.

Project Manager/ Engineer Technician Jan 1999-Jan 2000TERRA-MAR CONSULTING ENGINEERING June 2000- April 2001

duties included supervision of construction material quality assurance ofover 25 different projects ranging from road paving to multistory buildings,and pre-construction review of materials used to ensure compliance withproject design specifications, represented the testing lab at constructionprogress meetings, prepared and reviewed all testing lab reports for projectsmanaged, gave clients recommendations on lab test failure resolution options,managed the day to day operations of 35 engineering technicians and materials

testing subcontractors, maintained lab supplies and acquisitions, andmaintained the labs A2LA certification logs and records.Performed geotechnical site investigations with the overseeing of drillers,bore logs and both onsite and lab soil classifications.Ensured project geotechnical requirements were satisfied.

Stress Analysis Jan 2000-June 2000EV CONSULTING INC

Performed finite element analysis on stress effecting deepwaterdrilling/production risers due to wind, wave, and currents, evaluation ofstructural loads and weights, drawing structural designs on AutoCAD, writingcomputer programs to solve complex mathematical operations, preparedpresentations used in meetings with clients, and coordinated day-to-day officeoperations.

Education

Bachelor of Science: Maritime Systems Engineering May 2000Texas A&M University Galveston, TXMaritime Systems Engineering is the equivalent degree program as the currentOceanengineer degree offered at both College Station and Galveston Campus ofTexas A&M University

Publication

Free-Span Remediation Studies for the K2 Pipe-in-pipe Flowlines"; M. Hensley, M.Fletcher, C. Routh, U. Eigbe, D. Ling; OTC 2006 No. 18312.