Features of localization of remaining oil in terrigenous reservoirs and potential for their recovery at the final stage of field development

In this paper, an analysis of existing equipment for cleaning the bottom of the well from sludge during rotary drilling is carried out to find ways to improve the processes of transporting drilled rock. The article is devoted to the issue of improving the processes of transportation of drilled rock in the process of drilling oil and gas wells. Complications and accidents during the wiring of directional and horizontal wells are presented, the cause of which is insufficient well cleaning. The relevance of the task related to the development of highly efficient equipment and technologies for cleaning the bottom of the well from drilled rock is substantiated. An over-drilling device has been developed for cleaning vertical, inclined and horizontal wells from drilled rock. A schematic diagram of the work of the developed technical solution to improve the efficiency of cleaning the face and trunk of vertical, inclined and horizontal wells from drilled rock when drilling with a roller bit is presented.

Equipment and technologies for improving the processes of transportation of drilled rock

Zainagalina,

Suleimanov,

Zaripova

2024

Investigation of fracture geometry

Khusnutdinova,

Yusupova,

Almukhametova

et al. 2024

This article presents a study on hydraulic fracturing as one of the most effective methods of increasing the flow rate of wells, namely, the importance of evaluating the geometry of a hydraulic fracturing fracture when designing in difficult geological conditions is considered. The quality and success of the event depends on the correct assessment of the predicted crack geometry and the volume of the injected proppant. The fracture geometry is influenced by the mechanical properties of the rock, so, in the article, the results of a study of the mechanical properties of the core by dynamic and static methods are presented, and the main characteristics of the dependence are given. The results of modeling the fracture geometry of hydraulic fracturing at the stage of analysis of mini hydraulic fracturing are also presented. The findings indicate the need to use data on the mechanical properties of core samples with a high clay content to achieve more accurate predictions of the crack geometry. It is recommended to use a correlation model of the mechanical properties of rocks to account for various factors such as horizontal stress and poroelasticity coefficient. The development of new approaches to the analysis and modeling of these parameters will allow us to create more reliable tools for predicting the behavior of cracks in rocks and effectively managing the process of hydraulic fracturing.

Digital support and evaluation of the effectiveness of geological and technical measures based on artificial intelligence systems

Gilyazetdinov

2024

In this paper, the authors present the approbation of an artificial intelligence algorithm for digital support and evaluation of the effectiveness of the implementation of geological and technical measures in various mining and geological conditions. The object of the study was the deposits of deposit N, characterized by significant variability of parameters reflecting the filtration and capacitance properties of productive formations and their saturating fluids. With the help of the created system, maintenance of repair and insulation works at one of the wells of the object under study was successfully carried out. The presented main stages of the algorithm are universal and can be used in other fields to solve a wide range of problems in the development of deposits. The conclusion is made about the prospects of the direction «digitalization in oil production» and the relevance of the development of this topic in the context of the need to increase the pace of extraction of reserves.