Micro-fracture explosion propagation device for interlayer explosion laboratory study

Abstract

The invention discloses a micro-fracture explosion propagation device for interlayer explosion laboratory study. The device comprises first bakelite, a detonator, an explosion propagation explosive, an aluminum inner core, an aluminum inner core groove, a bakelite pipe body and second bakelite, wherein the detonator is fixed on the first bakelite; the first bakelite is adhered at one end of the bakelite pipe body; the aluminum inner core is provided with a central hole; the explosion propagation explosive is filled in the central hole of the aluminum inner core; the aluminum inner core groove is formed on the aluminum inner core; the aluminum inner core is sleeved in the bakelite pipe body; and the second bakelite is adhered at the other end of the bakelite pipe body. The device is convenient to use, has a smaller volume, saves materials and can be used for accurately measuring explosion propagation data of a suspension explosive and a liquid explosive in an underground micro-fracture in the process of imitating underground perforation fracturing operation and interlayer explosion and indirectly measuring pressure and temperature variation numerical values from a wellhead to an operation layer.

Description

technical field [0001] The invention relates to a micro-crack explosion transmission series device, in particular to a micro-crack explosion transmission device used for research in an explosion chamber within a layer. Background technique [0002] So far, the field of research on secondary stimulation development of oilfields is quite broad, but the main research topic is the stimulation development of low-permeability oilfield reservoirs. Because the oil reserves of low-permeability oil reservoirs in my country are very considerable, the geological reserves of newly proven low-permeability oil fields are several billion tons, accounting for about 1 / 4 of my country's total oil reserves. Low-permeability reservoirs are usually developed by vertical wells and vertical infill wells, water injection development and horizontal well development. Vertical wells and vertical infill wells are developed using formation energy, and the recovery rate is low. Water injection developme...

AI Technical Summary

Problems solved by technology

However, a series of micro-crack experimental research devices that are small in size, low in investment, easy to transport, easy to use, and can be used in the study of suspended explosives and liquid explosives have not yet appeared.

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