АР19674847 "Investigation of the mechanism of water inflows and regularities of the influence of geological and technological factors on isolation work performance"

Relevance

Currently, the share of fields with hard-to-recover oil reserves is increasing worldwide. In this aspect, Kazakhstan is among the countries with the problem of production of hard-to-recover hydrocarbons. Serious difficulties in oil production arise due to water inflows into wells. In such conditions introduction of various methods of oil production intensification is one of the basic methods of increasing of efficiency of technological solutions at management of field development.

The problem of water inflows and related finding ways of their most effective isolation are on the agenda and currently as urgent.

As a result of the analysis of numerous studies in recent years, the relevance of the problem of development of water shut-off technology, which includes all the necessary aspects and basic requirements to the composition provided for use, such as low viscosity of the solution to create an insulating screen of large radius; adjustable time of gel formation in a wide temperature range; high gel shear stress; selectivity of exposure, etc. is substantiated. As the main component of gel-forming system the use of polymer-based reagents with a new complex mechanism of action is envisaged.

Purpose

The purpose of the work is to establish connection between residual resistance factor and physical and chemical properties, rheological and filtration characteristics of sludge-forming compositions depending on porous medium permeability and injection rate.

Expected and achieved results

 

Expected results: Based on establishment of the mechanism of sludge formation in the course of SGFC application the dependence of residual resistance on physical, chemical, rheological and filtration properties of sludge-forming compositions, features of their interaction with porous medium and waters saturating it will be established; also the regularity of residual resistance variability during injection of sludge-forming compositions into bottomhole formation zone depending on permeability of porous medium and injection rate will be established. The possibility of improving water shut-off efficiency by controlling the zone of sludge formation in the bottomhole zone at different injection regimes will be revealed and substantiated.

In general, on the basis of the developed theoretical provisions there will be a basis for the technological scheme of field works and improvement of the method of sedimentation zone management during creation of water-proof screens. Also, on the basis of the received theoretical knowledge it will be possible to choose the rational technology of water shut-off works for specific geological conditions.

The intermediate and final results of the study will be published as at least three (3) articles and (or) reviews in peer-reviewed scientific journals indexed in the Science Citation Index Expanded database Web of Science and (or) with a CiteScore percentile in the Scopus database of at least thirty-five (35);

- not less than 1 (one) article or review in a peer-reviewed foreign or domestic publication recommended by the KOKSNVO.

Аchieved results:

The achieved results.

- 3 articles were published in the journal Scopus.

1. NEWS of the Academy of Sciences of the Republic of Kazakhstan. SERIES OF GEOLOGY AND TECHNICAL SCIENCES - Digital modeling of increasing the efficiency of water insulation in the bottom-hole zone of a well with various injection agents. Series of Geology and Technical Sciences 4 2023. pp-145-156.

2. MDPI ChemEngineering,  Modeling and Adoption of Technological Solutions in Order to Enhance the Effectiveness of Measures to Limit Water Inflows into Oil Wells under Conditions of Uncertainty, 2023, 7, 89. https://doi.org/10.3390/chemengineering7050089, CiteScore 4.7, percentile- 77, Q2 (Engineering:General Engineering)

3. MDPI Applied Sciences, Study of the Rheological Characteristics of Sediment-Gelling Compositions for Limiting Water Inflows, 2023, 13(18), 10473; https://doi.org/10.3390/app131810473, IF = 2.7, Q2 - Engineering, Multidisciplinary, CiteScore 4.5, percentile- 75, (Engineering:General Engineering).

4. Doctoral dissertation for the degree of Doctor of Philosophy (PhD) by Imansakipova Zemfira Beketovna on the topic: "Belgisiz jagdayinda ondirushi ungymalaryndagi su agymdaryn shekteu boyynsha technologiyalyk sheshimderdi zhetildiru" specialty 6D070800 – Oil and gas business. Completed within the framework of the project.

5. Textbook "Development of oil fields. Secondary mining (Polymer flooding)" by G.J. Moldabaev et al., with the assignment of the stamp UMO-GUP ROOMS, Protocol No. 1 dated October 06, 2023.

- 2 articles were published in the journal recommended by KOKSNVO.

1. KIMS - The method of non-stationary flooding and the conditions for its effective use in the operation of an oil field, pp 54-62, DOI:10.31643/2024/

6445.16 2. OIL AND GAS – The effect of the concentration of polymer solutions on the filtration properties of reservoirs. OIL AND GAS 2023 4 (136) Production series. pp. 56-67. https://doi.org/10.37878/2708-0080/2023-4.04

Research team members with their identifiers (Scopus Author ID, Researcher ID, ORCID, if available) and links to relevant profiles

1. Moldabaeva G. zh. Scientific Supervisor, Indexhirsha: 10; Google Scolar: https://scholar.google.com/citations?hl=ru&authuser=2&user=a1ybMcYAAAAJ;

ORCID ID:https://orcid.org/0000-0001-7331-1633; Scopus Author ID:55969768100;

2. Buktukov N. S. Chief Researcher. Index Hirsha-3; Scopus Author ID: 57211521015

https://orcid.org/0000-0001-6370-8557

3. Tuzelbaeva Sh. R. Junior researcher. Hirsch Index-1;

Google Scolar: https://scholar.google.com/citations?hl=ru&authuser=1&user=0LRHuw0AAAAJ;

ORCID ID:https://orcid.org/0000-0002-1749-6511. Scopus Author ID: 57431297100

List of publications with links to them

 

1. NEWS of the Academy of Sciences of the Republic of Kazakhstan. SERIES OF GEOLOGY AND TECHNICAL SCIENCES - Digital modeling of increasing the efficiency of water insulation in the bottom-hole zone of a well with various injection agents. Series of Geology and Technical Sciences 4 2023. pp-145-156. https://doi.org/10.32014/2023.2518-170X.295

2. MDPI ChemEngineering,  Modeling and Adoption of Technological Solutions in Order to Enhance the Effectiveness of Measures to Limit Water Inflows into Oil Wells under Conditions of Uncertainty, 2023, 7, 89. https://doi.org/10.3390/chemengineering7050089, CiteScore 4.7, percentile- 77, Q2 (Engineering:General Engineering).  https://doi.org/10.3390/chemengineering7050089

3. MDPI Applied Sciences, Study of the Rheological Characteristics of Sediment-Gelling Compositions for Limiting Water Inflows, 2023, 13(18), 10473; https://doi.org/10.3390/app131810473, IF = 2.7, Q2 - Engineering, Multidisciplinary, CiteScore 4.5, percentile- 75, (Engineering:General Engineering).  https://doi.org/10.3390/app131810473

4. KIMS - The method of non-stationary flooding and the conditions for its effective use in the operation of an oil field, pp. 54-62, https://doi.org/10.31643/2024/6445.16

5. OIL AND GAS – The effect of the concentration of polymer solutions on the filtration properties of reservoirs. OIL AND GAS 2023 4 (136) Production series. pp. 56-67. https://doi.org/10.37878/2708-0080/2023-4.04

Patents

The author's certificate for the work of science "Development of oil fields. Secondary mining (Polymer flooding)" No. 39690 dated October 17, 2023