Experimental device for simulating microseismic monitoring fracturing effect and experimental method for experimental device

Abstract

The invention relates to an experimental device for simulating a microseismic monitoring fracturing effect and an experimental method for the experimental device. The experimental device for simulating the microseismic monitoring fracturing effect comprises a central control system, a dynamic monitoring assembly, a static monitoring assembly and a display screen, wherein the dynamic monitoring assembly, the static monitoring assembly and the display screen are respectively connected with the central control system; the dynamic monitoring assembly comprises a laser doppler vibrometer; the static monitoring assembly comprises an ultrasonic transmitter and an ultrasonic receiver; the ultrasonic transmitter and the ultrasonic receiver are connected with the central control system through an oscilloscope via a signal; and the experimental method for simulating the microseismic monitoring fracturing effect comprises the following steps: model building, dynamic monitoring, static monitoring, data calculation and graphic simulation. According to the experimental device and the experimental method for simulating the microseismic monitoring fracturing effect, a microseismic event is monitored in dynamic and static manners, so that the measurement error is reduced; the data monitoring accuracy is improved; the monitoring effect is improved; and the experimental device and the experimental method are suitable for popularization.

Description

technical field [0001] The invention relates to the field of oil and gas field development, in particular to an experimental device and an experimental method for simulating microseismic monitoring of fracturing effects. Background technique [0002] The hydraulic fracturing fracture monitoring of shale gas wells commonly used abroad mainly includes direct near-wellbore fracture monitoring, downhole microseismic monitoring methods, inclinometer monitoring and distributed acoustic sensing fracture monitoring. The monitoring capabilities and adaptability of these fracture monitoring methods are compared and analyzed. Among these fracturing monitoring technologies, the near-wellbore fracture monitoring technology is only used as a supplementary technology. Downhole microseismic fracture monitoring is currently the most widely used and most accurate method. [0003] However, due to the complexity and variability of geological conditions, the equipment in the prior art has relati...

AI Technical Summary

Problems solved by technology

[0003] However, due to the complexity and variability of geological conditions, the equipment of the existing technology has a large error in the data obtained by monitoring microseismic cracks, and the effect is not very ideal.

Images