Simulation device for hydrothermal filling of fracture zones

A technology for simulating device and fracture zone, applied in the field of fracture zone hydrothermal filling simulation device

Inactive Publication Date: 2017-06-06
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the studies on the filling laws of faults or fractures focus on the two aspects of mineral filling characteristics and filling stages, while the research on the filling laws of fractures has not been reported yet.

Method used

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  • Simulation device for hydrothermal filling of fracture zones

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Experimental program
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Embodiment Construction

[0014] As shown in Figure 1, the simulation device for hydrothermal filling in the fracture zone includes: mineral crystallization-precipitator 1, magnetic stirring reactor 2; Configure saturated chemical reaction hot liquid, through heating, pressurization, acceleration, saturated chemical reaction hot liquid enters the rock cracks in the mineral crystallization-sedimentator for chemical precipitation, and the undersaturated hot liquid after the reaction returns to the magnetic stirring reaction tank for re- Replenish chemical reagents to become a saturated solution and repeat the cycle.

[0015] Mineral crystallization-precipitator 1, including: precipitator 11, glass plate 12, card slot 13, heating wire 14, power pump 15; precipitator 11 is a cuboid container with length, width and height of 30cm×20cm×20cm, surrounded by And the bottom is made of stainless steel, and the top is closed by a glass plate 12. The glass plate 12 is a double-layer anti-explosion structure with go...

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Abstract

The invention belongs to the field of petroleum exploration and development, and particularly relates to a crack band hydrothermal filling simulator. The crack band hydrothermal filling simulator comprises a mineral crystallization precipitator and a magnetic stirring reaction kettle, wherein the mineral crystallization precipitator is a crack band hydrotherm chemical reaction region, saturation chemical reaction hydrotherm is prepared in the magnetic stirring reaction kettle, by means of heating, pressurizing and accelerating, the saturation chemical reaction hydrotherm enters rock cracks in the mineral crystallization precipitator for chemical precipitation, undersaturation hydrotherm obtained after reaction returns to the magnetic stirring reaction kettle and is supplemented with a chemical reagent to become the saturation solution, and the steps are circulated repeatedly. According to practical environment of petroliferous basin reservoir stratum, solution corrosion and precipitate experiments can be carried out in fracture and crack bands of the petroliferous basin reservoir stratum at normal temperature and pressure conditions, and corrosion and precipitate mechanisms of deep hydrotherm and low-temperature stratum water caused by tectonic activity in the crack band and mutual action with the reservoir stratum are simulated.

Description

technical field [0001] The invention belongs to the field of petroleum exploration and development, and in particular relates to a hydrothermal filling simulation device in a fracture zone, which is used for visually simulating the hydrothermal dissolution-filling process of deep structure reservoirs containing complex fractures. Background technique [0002] As the exploration direction of oil and gas resources gradually shifts from shallow to deep, and from conventional oil and gas reservoirs to special oil and gas reservoirs, especially fractured reservoirs, it is necessary to find out the degree of fracture development and the effectiveness of channels. The exploration and development of tight sandstone gas reservoirs and carbonate gas reservoirs in the Hetianhe gas field) has a great impact, and it is also a technical problem that needs to be solved urgently. [0003] The dissolution-filling law of the fracture system is the theoretical basis for the exploration and dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/00G01N33/24
CPCG01N33/00G01N33/24
Inventor 冯建伟戴俊生王宇坤王永娟李树博
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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