Chemist

The Senior Elastomer Chemist will serve as a subject matter expert for elastomeric and thermoplastic materials used in oil and gas products, with emphasis on downhole and surface sealing systems exposed to high pressure, high temperature, low temperature, sour gas, hydraulic fluids, produced fluids, completion fluids, rapid gas decompression, and high-pressure gas environments.This role supports the full product lifecycle, including material selection, formulation review, seal design support, supplier qualification, manufacturing process control, qualification testing, field performance evaluation, failure analysis, customer support, and standards compliance. The candidate must connect polymer chemistry, compound formulation, processing, mechanical properties, and seal design requirements to practical oilfield product performance.Roles and ResponsibilitiesLead selection, evaluation, and qualification of elastomers, thermoplastics, adhesives, bonded assemblies, backup materials, and other non-metallic sealing components for severe-service oilfield applicationsReview elastomer formulations and ingredient effects, including base polymer, fillers, plasticizers, curatives, accelerators, antidegradants, processing aids, reinforcing systems, and specialty additives; assess impact on hardness, tensile properties, elongation, modulus, tear resistance, compression set, chemical compatibility, aging resistance, RGD resistance, extrusion resistance, bonding, and sealabilityProvide material, design, and application guidance for O-rings, T-seals, packing elements, V-packing / chevron seals, bonded seals, backup rings, molded sealing elements, static seals, dynamic seals, and extrusion-resistant seal systemsDevelop and execute qualification plans for high and low temperature, high and low pressure, hydraulic, gas, completion fluid, produced fluid, thermal cycling, pressure cycling, long-term aging, and rapid gas decompression environmentsApply relevant API, ISO, NORSOK, ASTM, NACE/AMPP, customer and internal requirements, and applicable ASTM test methodsLead rapid gas decompression / explosive decompression evaluations, including test planningSupport manufacturing processes including mixing, milling, extrusion, compression molding, transfer molding, injection molding, bonding, post-curing, etc; troubleshoot cure state, voids, porosity, contamination, bonding failure, hardness variation, property drift, and batch-to-batch inconsistencyWrite and maintain material specifications, purchase specifications, test methods, qualification reports, failure analysis reports, supplier evaluations, engineering recommendations, and customer-facing technical summariesLead failure analysis and root-cause investigations for elastomeric and thermoplastic components from field, qualification, manufacturing, and supplier issues; recommend corrective actions based on evidenceSupport supplier qualification, supplier audits, compound approval, change control, nonconformance resolution, deviation reviews, and API Q1 / quality system expectations related to traceability, documentation, and process controlMentor junior chemists, materials engineers, and lab technicians; provide senior technical input to engineering, R&D, product lines, manufacturing, quality, supply chain, operations, and customers.Skills / EducationBachelor's degree in Chemistry, Polymer Science, Materials Science, Chemical Engineering, Materials Engineering, or related technical disciplineMinimum of 10 years of relevant experience with elastomers, polymers, thermoplastics, or non-metallic materials, including significant experience in oil and gas, energy, chemical processing, aerospace, or other severe-service applicationsDemonstrated expertise in elastomer chemistry, polymer chemistry, compound formulation, material selection, material testing, material qualification, and structure-property relationshipsDirect experience with oilfield sealing systems such as O-rings, T-seals, packing elements, V-packing / chevron seals, backup rings, bonded seals, molded sealing components, static seals, and dynamic sealsWorking knowledge of rapid gas decompression / explosive decompression mechanisms and qualification approaches for RGD-resistant compounds and seal designsFamiliarity with ASTM test methods for rubber, elastomers, and thermoplastics, including tensile, hardness, compression set, tear, aging, fluid immersion, low-temperature behavior, dimensional change, volume swell, and property retention testingWorking knowledge of relevant oilfield and material standards, including API product standards, (such as API 11D1, API 19LH, API 14A, API 14L, API 19G, API Q1, etc), NORSOK M-710, ISO 23936, ASTM, and NACE/AMPP standardsStrong understanding of elastomer and thermoplastic manufacturing methods.Ability to manage multiple projects, write clear technical reports, communicate with technical and non-technical stakeholders, and make sound recommendations based on technical risk, product performance, quality, safety, and business impactMaster's degree or PhD in Polymer Science, Polymer Chemistry, Materials Science, Chemical Engineering, or related field12 to 15+ years of experience with elastomers, thermoplastics, and non-metallic materials in oilfield or other severe-service applicationsDirect experience in upstream Oil and Gas services, including well construction, well completion, and production services and productsHands-on experience qualifying elastomers to NORSOK M-710, ISO 23936, API 6A Annex F, or equivalent RGD / sour gas qualification standardsExperience with sour service and aggressive media such as H2S, CO2, hydrocarbons, brines, amines, methanol, completion fluids, drilling fluids, hydraulic fluids, and produced fluidsExperience with analytical methods such as FTIR, DSC, TGA, DMA, SEM/EDS, rheometry, etcExperience with high-performance elastomers and thermoplastics such as HNBR, FKM, FEPM/Aflas, FFKM, EPDM, polyurethane, NBR, PEEK, PEK, PEKK, PPS, PTFE, PCTFE, PAI, PEI, UHMWPE, and related materialsExperience participating in API, ISO, NORSOK, ASTM, NACE/AMPP, or other industry standards organizations; experience supporting API Q1 or ISO 9001 quality management systems preferredCustomer-facing technical experience, including failure reviews, qualification reviews, material selection discussions, field issue support, and supplier technical reviews#LI-KP1Weatherford is a leading global energy services company. Our world-class experts partner with customers to optimize their resources and realize the full potential of their assets. Across our operating locations, including manufacturing, research and development, service, and training facilities, operators choose us for strategic solutions that add efficiency, flexibility, and responsibility to any energy operation. We are focused on technology development, digital solutions, and defining our footprint in the new energy space. Our ability to provide integrated solutions across our segments will be critical to growth in our core operations and the energy transition. Energy producers face unique challenges every day, so it is our job to create solutions that enhance safety, streamline operations, and sustain uptime to meet or exceed their targets. We operate across the global energy landscape employing some of the best diverse talent in the industry. At Weatherford, we understand the value each individual brings to the table. We celebrate diversity in all its forms and are immensely proud of our workforce. We invite you to join our passionate, talented, world-class team. When you join Weatherford, you instantly feel connected to something bigger – a community that is grounded by our core values and driven to create innovative solutions for our customers. We celebrate each other’s successes, grow together, and learn from each other constantly. Individually, we are impressive. Together, we are unstoppable. We are One Weatherford.Join Us: Weatherford is producing energy for today and tomorrow- with global opportunities as unlimited as your sense of adventure. Join us to make an impact on our customers, the industry, and the world. Weatherford is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.Full timePosting Date: Weatherford International Ltd