InSAR Applications of Land Subsidence Over Oil Fields (Case Study Southeast of Republic of Tatarstan, Russia)

Land subsidence risk assessment basically based on current information found that the analyzed subsidence districts are over the top and medium hazards of tormented by subsidence resulted in damages like diminish in runoff and wastewater seepage capacity, disturbance to water transportation structures undermine artificial infrastructure balance. Also, land subsidence may also be caused by oil and gas exploration. Russia is a major oil and gas producer in the globe. The Romashkino field is an oil and gas field located in Tatarstan, Russia. In 1948, the largest oil field in the Volga-Ural Basin was found there. In this study, we focus, application of INSAR analysis for surface deformation by oil and gas extraction and injection cycle with 14 SLC SAR Images of the descending pass from sentinel-1 satellite in C band between 2017 and 2020. The Permanent Scatterers (PS-InSAR) Technique was utilized to study displacement deformation utilizing the SARPROZ software. PSI was applied using interferograms with a super master scene. This approach processes only the coherent pixels with stable phase or amplitude. Due the high-density vegetation cover and long winter time with snow cover, decreased the number of resulting points. Results of the displacement re-sampled price of local land deformation between 2017 and 2020 projected. The displacement rates surrounding the Romashkino oilfield in this study range from 3 mm/yr to -9 mm/yr, according to PS-InSAR measurements. Additionally, we suggest an acceptable cutoff to choose the PSs for the case study when ASI is > 0.70 (DA 0.25). © The Author(s), under exclusive license to Springer Nature Switzerland AG 2023.