In Oil and gas industry, demand for DTS (distributed temperature sensing) completions installation is rapidly increasing in recent times. Currently multiple vendors are installing the DTS completions at field A for real-time water flood conformance monitoring and to meet target production rate. This paper discusses about the insights of data acquisition process and interpretation approaches to generate a standard operating procedure specific to Field A.
DTS Completions are being installed in field A for few years, and they will be key in generating the optimum water injection profiles, proactive water flooding surveillance, injection/ production optimization and better reservoir management. However, the data acquisition, conditioning and interpretation is vendor specific. Moreover, the interpretation is influenced by the procedure followed for data collection, warm back period, the fluid at down hole, reservoir rock properties as well as the models being used for interpretation. In view of this multivendor installations available at field A, there is a need to standardize the data acquisition & interpretation process that will allow all reservoir and petroleum engineers in the field to analyze the DTS profiles regardless of the type of vendor DTS completion installations.
Field A has 13 DTS Completions installed in multiple reservoirs from three different vendors, and the injection profiles for these wells are being generated. This paper summarizes the influence of key parameters and/or assumptions that play a major role on the interpretation results and their variability during data collection stage. Further, the comparison of the injection profile generated by DTS with mechanical PLT will be discussed, and the use of PLT data for fine-tuning the interpretation model.
In addition, time-lapse injection profile generated at a specific well will be compared to understand the reasons for variation of it over a period. Additionally, the recommendations for improving/ optimizing the injection profile in few cases will be discussed including stimulations for better conformance and injection rate adjustments. In the conclusion, the proposed unified procedure covering data acquisition, format, storage, and standardized interpretation approach will be discussed.
This is an attempt to standardize the DTS data collection and to unify the interpretation process among the multiple vendors in a specific Field A.