METHOD OF EXTRACTION OF OIL-KEROGEN CONTAINING RESERVOIRS AND TECHNOLOGICAL COMPLEX FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC E21B43/247 E21B43/267 E21B43/27 E21B43/22 

FIELD: oil and gas industry.

SUBSTANCE: group of inventions refers to the oil and gas industry and can be used to intensify the extraction of oil from low permeable rocks. Method includes the preparation of working agents, injecting them along the product pipeline into a productive oil-kerogen containing reservoir. In this case, before the high-temperature thermochemical impact on the productive layer, the natural fracturing is restored and natural fluid-conducting channels in the bottomhole zone of the productive formation by low-temperature thermochemical exposure to it with a working agent, followed by channel fixing with a nanoproppant as a result of low-temperature thermochemical catalytic action using a working agent. Productive layer is subjected to acidic thermochemical treatment using a working agent with the subsequent thermal impact on the productive layer and the carrying out of intra-plastic thermal explosions in it. After the implementation of the main high-temperature thermochemical treatment and before the selection of hydrocarbons, a thermocatalytic effect on a productive stratum for in-situ upgrading of hydrocarbons with subsequent implementation of a hydrogen-thermocatalytic effect on the productive stratum using catalytic nanoproppant to increase the degree of completeness of the molecular modification of oil of low permeable rocks, bituminous oil and kerogen in more valuable hydrocarbons and preventive compaction of the productive formation by fixing the fluid-conducting channels of the productive formation with a nanoproppant. After that, the thermohydrocarbon acid effect on the reservoir with the subsequent selection by the product pipeline of modified and partially refined hydrocarbons on the day surface. In this process, during the delivery of hydrocarbons to the surface, additional partial refining is carried out by passing through a flow reactor, formed by the space in the product pipeline between the tubing string (coiled tubing) and coaxially placed in it by the coupling sleeve. Technological complex for the production of hydrocarbons includes a ground water generator having a pressure above 28.5 MPa and a temperature above 593 °C, a product pipeline, made in the form of a column of thermally insulated tubing, located in the well before its slaughter. Moreover, the generator has the possibility of connecting the output to the tubing string. Technological complex is equipped with a mixer, a water treatment plant, a connected output to the generator input, as well as an oxidation reactor, a reformer for organic compounds and an enrichment unit with organic compounds connected to the first inlet of a reformer for organic compounds, to the second input of which the generator is able to connect. In this case, the output of the reforming reactor is able to be connected to the tubing string. Generator is connected to the inlet of the oxidation reactor. Output of the oxidation reactor is capable of being connected to a tubing string. At the same time, in the tubing string, coaxial with the gap is a coaxial tube, to which there is a possibility of connecting a container for cold water or an oxidizer tank. Mixer has the possibility of connecting the input to the generator, and the output to the tubing string.

EFFECT: technical result is the expansion of the functional capabilities of hydrocarbon production by ensuring their efficient extraction from low-permeability petrocarbon-containing reservoirs, as well as improving the quality of hydrocarbons produced by molecular conversion of low-permeability oil and bituminous oil into lighter oils.

31 cl, 18 dwg, 5 tbl