WELL INTERFERENCE PROFILING SERVICE
The OptaSense Well Interference Profiling Service can quantify production, detect well inflow regions in the profiles and identify well interference locations accurately down to the individual cluster level. It provides full wellbore spatial illumination for better understanding of the reservoir dynamics.
Production monitoring and Well Interference with Distributed Sensing determines inflow or injection profiles along the whole completion. Production monitoring with fiber enables a direct look at every aspect of the completed zone. In complex multiwell pads the OptaSense Well Interference Profiling Service determines changes in production that are associated to nearby well and reservoir influences.
When developing oil and gas reservoirs, it is preferred to have individual wells produce from their own, isolated drainage regions. This is done to keep the pressure as high as possible for as long as possible to optimize total production and hydrocarbon recovery. In reality, this is rarely the case as it is easy for two or more wells to influence each other.
Communication between adjacent wells, be they separated laterally or vertical, is frequently encountered in multi-stage fractured shale reservoirs. Both natural and induced fracture networks have the potential to create interconnectivity paths between the wells.
The OptaSense Solution
The Well Interference Profiling Service utilizes production profiling via distributed fiber-optics production profiling. The fiber captures acoustic, strain and thermal “vibrations” occurring when the fluid enters the wellbore through the perforations. Those are interpreted into a distributed inflow profile along the completion.
By taking production profiles at various points in time following certain events, such as start-ups or shut-ins of the surrounding wells, production profiles can be compared, and the changes characterized and quantified. Based on the executed test program, the analysis reveals reservoir connections between individual wells and the fibered well on a cluster or stage level.
Well interference testing uses the production profiles generated at different times during the testing program and compares them to determine connections between the wells. During the Well Interference Profiling Service, a fibered well is used to monitor various offset locations, it also includes a nearby test well that is suspected of “interfering” with the production region of the fibered well. To determine that 1) they are connected, and 2) where exactly they are connected, the fibered well is kept flowing steady and continuously. An inflow production profile is obtained and then the nearby test well is restarted. After stabilization, another profile is taken on the fibered well and those profiles are the compared to determine changes in inflow, magnitudes, and locations. The results are interpreted, and the connected clusters identified revealing well to well communication.
Ready for Improved Production from Your Reservoir?
The fiber-optic based production profile measurement, provided by the OptaSense Well Interference Profling Service, can quantify production, detect well inflow regions in the profiles and identify well interference locations accurately down to the individual cluster level. The accuracy is superior to pressure-based well interference testing. More importantly it provides full wellbore spatial illumination for better understanding of the reservoir dynamics. This delivers two products as one, inflow profiling and well connectivity determination respectively, with minimal lost production during testing, quick mobilization and execution, as well as relative short testing times.
Advantages of the Well Interference Profiling Service
- Identify reservoir communication between wells
- Determine distributed production profiles
- Optimize completion design and well placement from production data
- Multi-physics analysis of well/reservoir interactions
- Permanent or wireline fiber monitoring solutions
Additional Services Available
SEISMIC ACQUISTION AND PROCESSING Real-time seismic without geophones Achieving higher rates of return begins with a clear understanding of the reservoir. OptaSense Oilfield Services’ seismic acquisition and processing offering provides repeatable, high resolution imaging of