Customer Challenges
- Expro’s client needed to obtain reservoir compositional and contaminant data as part of a high profile E&A campaign in Southern Europe
- Good quality samples were a key objective of the campaign, and the operator required assurance that the samples were captured correctly and there were no nonconformities
- With no PVT laboratory in the area, samples would need to be exported for analysis, and their quality would not be known until they had reached the lab
- Decisions on whether to proceed with next steps of the operation required input from sample analysis
- If samples were not representative, no further opportunities would be available to re-sample
Expro Excellence
- Expro’s proposed solution delivered on the rig data, providing confidence in sample quality, as well as initial composition and contaminant data to confirm the value of the reservoir fluids
- TurboPVT transfers were used to validate samples during transfer from openhole tool to transport bottle, recording transfer progress and providing phase volumes, mud contamination levels, and pressurized density measurements
- ELITE Composition delivered C36+ hydrocarbon composition of the reservoir fluids, including BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes), CO₂, and N₂, as well as GOR and stock tank liquid density
- Further onsite analysis was conducted on the samples, including mercury and hydrogen sulfide in the hydrocarbons, and ionic composition of two water samples by MultiIon analyzer
Value to Client
- All samples were transferred, ensuring their integrity by restoring to reservoir conditions and maintaining single phase throughout
- Operator was able to confirm samples contained target fluids, and no further sampling runs were required
- Initial analysis of the samples confirmed the quality of the hydrocarbon discovery, and allowed the client to calibrate logs and improve the accuracy of their dynamic reservoir data
- Client is able to move forward with the next project phase, commence reservoir modeling much sooner than had samples been sent to a conventional lab, which could have delayed the decision making by several months
- Knowing contaminant levels enables earlier procurement of materials for upcoming projects in the area
