29.10.25 (inclusive)

the contract

Idea

R&D Tasks

Extraction and processing of hydrocarbons raw materials

Positioning Systems

Service

The development of mineral deposits, in particular the extraction of hydrocarbons, is a long technological cycle, inevitably accompanied by changes in the stress-strain state of the upper horizons of the Earth's crust. Depending on the geological structure and tectonic fragmentation, such changes manifest themselves as differentiated subsidence of the Earth's surface and/or technogenically induced seismicity associated with stress redistribution and possible reactivation of faults with a decrease in reservoir pressures. These processes pose direct threats to the facilities of the field and transport infrastructure — well sites, foundations of technological installations, pipelines and strapping units — and can lead to significant material losses and risks to occupational safety. The problem of geodynamic safety is particularly relevant for the Shagyrly-Shomishti deposit due to its wedge-shaped geological structure and the sensitivity of the geological environment to man-made loads in conditions of shallow occurrence of the productive horizon. Global practice shows that episodic ground-based measurements are insufficient for timely detection of emerging deformation trends and local anomalies: events that cannot be recorded by traditional methods may occur between field campaigns. The optimal response to this challenge is an integrated ground-to-space surveillance system combining hybrid GNSS networks, InSAR monitoring, and high-precision gravimetric and leveling observations. Such a complex provides millimeter sensitivity to offsets, spatial coverage capability and metrological verification of results, while remaining environmentally neutral in terms of technological emissions. Ensuring the geodynamic safety of the development of the Shagyrly-Shomishti field using an integrated ground-based monitoring system is a scientifically and practically justified necessity, which directly affects the reliability of production activities, reducing emergency risks and the sustainability of subsurface use.

The socio-economic effect cannot be expressed in specific figures, as it is associated with a reduction in the risks of operating a gas field. However, the obvious cost savings in increasing the reliability of data on modern movements of the Earth's crust in this project are obvious. Due to the large area of the deposit, the frequent use of these methods is expensive, it takes three months to obtain the initial data and has the property of accumulating errors with an increase in the number of moves due to the human factor. For example, to obtain trends in the horizontal and vertical components of the movement of observation posts, it will be necessary to monitor using traditional methods at least three times a year and will require about 60 million tenge and additional statistical work to reduce the accumulated measurement error. The current network makes it possible to switch from periodic to continuous observations, which in turn will make it possible to build time series from average daily observations and increase measurement accuracy by eliminating the human factor in field measurements. The obtained results, together with data from ground-based geological and geophysical studies, will make it possible to create spatial and temporal 3D geomechanical models, build displacement maps of the studied areas of the earth's surface and link them with fault-block divisibility and the activity of interblock boundaries. Previously, in the Republic of Kazakhstan, work on geodynamic and geophysical ground-space monitoring of territories with intensive development of hydrocarbon deposits, as well as industrial facilities, allowing three-dimensional modeling of the stress-strain state of the studied environment, was not carried out. These data are important for solving applied and fundamental geodynamic problems in the North Ustyurt region, primarily to ensure the geodynamic and environmental safety of both industrial facilities, including developed hydrocarbon deposits, and the environment as a whole.

Mergaliev Kuanysh Kanapiyanovich