AP26104793 – Development of mobile NMR devices for real–time monitoring of hydrocarbons
Objective of the project – The purpose of the study is to increase the efficiency of exploration and monitoring of oil and gas fields based on remote (off-well) NMR studies of their condition in real time for the sustainable and rational use of hydrocarbon resources.
Relevance: In the oil industry, nuclear magnetic resonance (NMR) methods are widely used to study the petrophysical properties of reservoirs, including porosity, permeability, and fluid saturation. However, existing approaches based on laboratory studies and well logging primarily provide information limited to the near-wellbore zone, which restricts comprehensive assessment of the entire reservoir.
Under conditions of enhanced oil recovery (EOR) and geological and technical interventions (GTI), the structure and properties of reservoirs change throughout the field, creating a need for effective monitoring systems at the full-field scale. At the same time, conventional NMR methods are limited by the requirement for a stable external magnetic field, which complicates their application in field conditions.
In this context, the development of new approaches that enable the use of the Earth's magnetic field as a natural environment for NMR measurements becomes highly relevant. Despite ongoing research, effective solutions to this problem remain insufficiently developed, mainly due to difficulties in signal interpretation and the influence of external factors.
Therefore, the development of mobile and remote NMR diagnostic methods that enhance sensitivity and resolution through coherent signal accumulation is of particular importance, along with the application of intelligent data processing algorithms, including neural networks, for reservoir state identification. The implementation of such approaches will enable real-time monitoring of spatiotemporal changes in reservoirs and improve the effectiveness of decision-making aimed at enhancing oil recovery.
Scientific supervisor: Zemfira Beketovna Imansakipova, PhD
Expected and achieved results:
The results of the analysis and generalization of foreign and domestic experience in the application of the nuclear magnetic resonance method in studies of the structure and properties of hydrocarbons. A method of remote (out-of-well) obtaining NMR spectra in the pulsating magnetic field of the Earth. Evaluation of the possibility of obtaining NMR spectra in the Earth's magnetic field. A method for remote (off-well) obtaining NMR spectra in the pulsating magnetic field of the Earth.
Functional diagram of a mobile device for obtaining NMR spectra in the Earth's magnetic field.
Technical specification for the manufacture of a device for obtaining NMR spectra in the Earth's magnetic field and its implementation.
Systems for differential registration of NMR signals from local areas of the deposit to identify their condition.
Software for controlling the device for recording NMR signals in the Earth's magnetic field. Monitoring results. Software for controlling the device for recording NMR signals in the Earth's magnetic field and identifying the obtained spectra Monitoring results. Development of recommendations for decision-making on the use of technology of external impacts on the reservoir to increase oil production.
Assessment of the feasibility of obtaining NMR spectra in the Earth's magnetic field based on a critical analysis of the application of NMR methods in studying the state, structure, and properties of hydrocarbons. The study aims to evaluate the possibility of acquiring NMR spectra under the Earth's magnetic field conditions.
An innovative method for remote (non-well-based) acquisition of NMR spectra in the pulsating Earth's magnetic field is proposed.