Here’s why we are a leader in our industry…
What can we do for you today?
Tech Transfer specializes in compressor packages used for gas gathering, pipelines, storage, offshore platforms, FPSO gas lift applications and other specialized facets of the industry. Our package designs range in capacity and size from 500 to 8,200 brake horsepower, with some units weighing more than 350 tons. The designs are completed by members of our skilled team, who have diverse backgrounds with compressor manufacturers, packagers, engineering contractors, pipeline operators and major oil companies.
Field Vibration & Pulsation Analysis
For more than 25 years, Tech Transfer has provided accurate and reliable field vibration and pulsation analysis of reciprocating compressor packages. Tech Transfer’s field data acquisition includes vibration and dynamic pulsation readings, and natural frequency bump tests on all units. In addition, we take complete sets of readings at various speeds for engine driven and variable-frequency drive units. Our field vibration techniques and computer analysis methods result in effective solutions to pulsation and vibration problems and minimized down time. Tech Transfer’s work in the field led us to developing reciprocating compressor package designs for the packaging industry. Select packagers now rely on our design services.
A Single Source for Design and Analysis
During the course of a project, design changes will arise. Since Tech Transfer is a single source for design and analysis, coordination problems among multiple companies can be prevented. Tech Transfer can complete a compressor package design, with the required analysis, from piping and instrumentation diagrams through fabrication drawings. Performance analysis, equipment selection, skid design, vessel sizing and piping system design are all included in our services.
Experience in Analysis and Design
Because of Tech Transfer’s experience with new unit design and field vibration solutions, our acoustical analysis recommendations are simple, practical and effective. Tech Transfer’s recommendations are implemented successfully and are field-proven. Experience with a diversity of field problems over the past 25+ years has also given Tech Transfer exceptional skill in correcting and reinventing flawed design.
Tech Transfer’s reciprocating compressor package designs eliminate concern with field pulsation and vibration problems. Compressor packagers who are new to the industry do not have the specialized design and engineering experience needed to design effective reciprocating compressor packages. It is important that these packagers rely on experienced design teams like Tech Transfer from the get-go. We can complete initial designs for new packagers and complete fabrication drawings for all phases of the package design. Select reciprocating compressor manufacturers strongly recommend that their new distributors employ Tech Transfer’s package design services when entering the reciprocating compressor packaging business. Our services help prevent initial field problems with untested package design and ensure a high degree of package reliability.
In addition to our design and analysis services, we also offer training to designers and engineers. Tech Transfer offers seminars in correct package equipment selection, package layout and design, and vessel and piping size, as well as other design techniques.
Tech Transfer provides complete design and analysis of offshore platform decks and FPSO compressor module installations on ships. We analyze loading due to storm winds, seismic accelerations (earthquakes), ship motions and blast simulations.
Tech Transfer has been involved in the design and successful installations of reciprocating compressor packages on more than 250 offshore platforms and over 40 compressor modules on FPSO ships. Additionally, Tech Transfer has designed and analyzed more reciprocation compressor modules installed on FPSOs than any other engineering services company. Offshore operators and packagers alike, utilize Tech Transfer’s extensive offshore experience.
For more than 25 years, the oil and gas industry has come to demand higher performance and horsepower from reciprocating compressor manufacturers. As reciprocating compressor packages have been scaled up from smaller units, new field pulsation and vibration problems have arisen. Tech Transfer conducts field vibration analyses and solves these problems.
We lead the industry in revolutionizing package skid and module designs with low vibration.
Structural Modeling and Simulation
Tech Transfer has the unique ability to present multiple factors and analyses in a single structural model. This helps ensure correct stiffness values for determining natural frequencies. Compressor skids, equipment components, concrete foundations and soil properties are also included in a single model. For concrete foundations and piling-mounted units, Tech Transfer also incorporates soil mechanical properties determined by specialized soil analysis and calculations. This ensures correct dynamic natural frequency and vibration analysis results for the structural system.
Following this process, compressor operation is simulated with unbalanced forces (from mechanical and gas compression sources). During compressor simulation, vibration levels are monitored throughout the compressor skid and support structure. When necessary, we modify structural designs to lower vibration levels. Vibration levels calculated by Tech Transfer’s structural analysis actually match field readings to within a very small tolerance.
Fast and Accurate Acoustical Analysis
Tech Transfer is an industry leader in acoustical pulsation analysis for reciprocating compressor packagers. We developed in-house capabilities for completing various acoustical and mechanical analyses required by API 618 by using several software programs. Tech Transfer’s computer analysis techniques and modeling methods were developed by comparing trial models to past field solutions and actual field readings. This has resulted in unique modeling techniques that quickly produce reliable results.
Analysis Above Specified Requirements
Because Tech Transfer’s team has field vibration analysis experience on over 2500 reciprocating compressor packages, we can recommend minimum vessel and nozzle wall thicknesses to prevent field vibration and fatigue problems. This service is offered in addition to API 618 requirements. If the project schedule is very short, this additional service allows the packager to order scrubber and bottle components quickly. If the project schedule and analysis scope allows, scrubber-wall and bottle- wall thicknesses to be optimized with dynamic mechanical analysis. Tech Transfer’s API 618 M5 analysis includes scrubbers and piping out to the first pipe support. The systems are modeled with true FEA plates (not beam-type) to ensure accurate model stiffness and dynamic mechanical analysis results. Based on extensive field bump tests, our computer-generated natural frequencies are consistently within 3 – 6 percent of actual field readings.
API 618 piping natural frequency analysis (M7) and pressure-temperature stress analysis (M11) require the use of accurate pipe supports and pipe stiffness in the piping model. If these are not used, the piping analysis results will not be accurate. Tech Transfer provides additional service by not only using actual pipe supports in piping analysis models, but providing the compressor packager with pipe support design drawings that specify fabrication components. These drawings are not required, but we offer them as an additional service to provide the compressor packager with cost saving analysis. Even when customer specifications do not require a pulsation analysis, most reciprocating compressor packagers recommend acoustical pulsation, mechanical dynamic and structural analyses for very large compressor packages and critical compressor applications. These analyses help minimize field pulsation-vibration problems that require expensive repairs and cause production down time.
In today’s oil and gas industry, some end users and operators are not familiar with the nature of reciprocating compressors and the need for pulsation and mechanical analyses. It is the compressor packager’s responsibility to recommend such optional analyses to their customers. We are eager to provide our customers with these optional analyses. If your company is a reciprocating compressor manufacturer, packager, or a user of reciprocating compressors, get to know Tech Transfer. We can increase your reciprocation compressor package reliability, optimize package designs, prevent costly field vibration problems and minimize lost production due to such problems.