06.08.25 (inclusive)

Contract

Idea

R&D Tasks

Extraction and processing of hydrocarbons raw materials

Positioning Systems

Service

This research work is a logical continuation of previous work on geodynamic monitoring of the subsurface, in which, in addition to the methods approved in the outdated comprehensive program of work, it is planned to use new methods for monitoring deformations of the earth's surface of the Shagyrly-Shomyshty deposit. Satellite radar interferometry carried out in recent years has made it possible to assess the natural nature of modern geodynamic processes in the territory of the Shagyrly-Shomyshty deposit. The further application of radar interferometry is becoming even more relevant with the rapid development of Earth remote sensing technologies and the launch of new spacecraft with improved payloads. In this work, it is planned to use new satellite data and improved processing algorithms. According to the outdated comprehensive program of work on the topic: "Conducting geodynamic monitoring of the state of the subsurface in the territory of the Shagyrly-Shomyshty gas field in the Mangystau region" for the period 2018-2022, the following field measurements were performed: 1) Leveling of the II class of increased accuracy; 2) High-precision gravimetric measurements; 3) High-precision GNSS observations; 4) Satellite imagery. The program is outdated and needs to be updated with the continuation of historically conducted field measurements in order to identify the global trend of modern geodynamic processes.

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