Current issues infrastructure design for thermochemical effects on the reservoir in the development of geological oil reserves of kerogen-containing formation

Introduction. Currently, to create a technology for thermochemical effects on kerogen-containing rocks, the main research is focused on the creation of equipment (a supercritical water generator), the study of problems of coolant delivery to the reservoir (development of an intra-well layout that minimizes heat loss from the mouth to the bottom of the well), determining the volume of kerogen-containing rocks, calculating the volume of production of man-made oil obtained during retorting kerogen. This article is intended to draw the attention of researchers to the complications that may arise during the extraction of man-made oil, as well as their impact on field management systems during production (in-field collection, preparation and external transportation of oil).

Aim. To describe the prerequisites for the creation of a pilot plant for the technology of thermochemical effects on the reservoir using a ground-based supercritical water generator, describe the main objects of engineering research, determine criteria for selecting bush sites for the use of technology on them, identify complicating factors that must be taken into account when designing infrastructure facilities, formulate key indicators for assessing the technological readiness of the project for the full-scale implementation of technology for the results of pilot industrial tests.

Materials and methods. The research consisted in generalizing and analyzing the world experience in the application of thermochemical treatment technology to the reservoir during downhole retorting of kerogen. The paper uses computer modeling of the properties of structural materials that can be used for downhole arrangements when pumping supercritical water, as well as modeling changes in pressure and temperature of supercritical water along the length of the well.

Results. The research revealed the advantages and disadvantages of downhole and onshore heat generation plants, listed the main complicating factors that may arise during the extraction of man-made oil and have a negative impact on field management systems during production, which must be taken into account when designing the technological infrastructure of the field. Based on the work carried out, the main directions of further engineering pre-design studies are formulated.

Conclusions. A checklist of the results of pre-design studies has been developed, which is recommended to be carried out before designing the infrastructure for pilot testing of thermochemical impact technology on the reservoir, as well as to take into account the timing of technology implementation when planning them. It is proposed to create an industry integrator to consolidate the competencies and experience of oil companies in this area.

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