Our experienced engineers and technicians use state-of-the-art vibration test equipment and diagnostic techniques to analyze vibration problems for the oil and gas industry. Our failure analysis techniques can determine the cause of the problem and show how to prevent vibration problems in the future. EDI works on projects both on- and off-shore, including platforms in the Gulf of Mexico, North Sea and East Timor Sea.
Services
- Computer Monitoring
- Diagnostic Field Investigations
- Modal Evaluation
- Pulsation Analyses
- Reciprocating Machinery Analyses
- Structural Analyses
- Torsional Analyses
Equipment
- Diesel Engines
- FPU Screw Compressors
- Frac Pump Systems
- Gas Turbines
- Large Generators
- Oil Transfer Pumps
- Quintaplex Pumps
- Reciprocating Engines
- Reciprocating Compressors
- Transmissions
- Triplex Pumps
Expertise
EDI works offshore to assist the oil and gas industry with vibration problems on platforms around the world. Projects include oil transfer pumps, FPU screw compressors, reciprocating engines driving reciprocating compressors, modal evaluation of decks and supports, gas turbines driving main electrical generators, etc.
Drilling companies use reciprocating mud pumps that are often triplex (three plungers). EDI has evaluated torsional vibration problems with variable frequency drive (VFD) motors driving mud pumps. EDI helped improve the shaft design for a motor with high side loads due to the belt drive.
Modules are used on the North Slope of Alaska, which are supported by piles about the tundra. EDI has assisted major oil companies with pulsation and torsional analyses of triplex and quintaplex pumps for water reinjection, etc. EDI has solved bearing problems with large generators, reduced piping vibration and measured stresses on large knock-out vessels, and helped to balance reciprocating compressors with unbalanced forces and moments.
For the Alaska pipeline, EDI evaluated the new VFD motor – pump systems. This included rotordynamics, torsional analyses, and finite element analysis (FEA) of the support structure. Stiffness of the bearing support was incorporated into the lateral critical speed analysis for more accurate predictions.
EDI works with companies that provide oil field services such as frac jobs. After a well is drilled, production will decline over time. The formation can be factured with propent, water, and possibly special chemicals are injected into wells to restore production levels. EDI has assisted with evaluation of diesel engines, torsional vibration effects on transmissions, trailer supports, piping vibration, and suppression of pressure pulsation and cavitation with frac pump systems.
EDI has worked on FPFO (floating production storage and offloading) vessels. As with offshore platforms, it is important that equipment be well balanced, have low shaking forces, and minimal pressure pulsation.
