Application Of Artificial Micro Seismic Technology On Fracturing Well Real-time Monitoring

Micro seismic event is the essence of a surrounding rock stress strain,deformation, cracking, buckling, destroy wait for a series of dynamic evolution of aform. Micro seismic monitoring is the main basis of each sensor to record the microseismic event waveform. The waveform containing the new event source and thenearby rock state information. Micro seismic study is the main content of the signalwaveform as much as possible to get useful information is extracted, and somequantitative parameters (mainly used for the characterization of rock stress,surrounding rock strain dynamic evolution and the final failure) to represent, toprovide to the engineering application. Micro seismic research must and rock (fracture)mechanical and other related professional theoretical knowledge organically, and inpractice continue to accumulate experience. In order to better play to their potentialadvantages, form a set of practical micro seismic monitoring system.Weak seismic wave combined with hydraulic fracturing operations, can be usedfor monitoring from a dense layer of hydrocarbon stimulation. Seismic monitoringtechnique to obtain the micro seismic wave can be used to draw the fracture changes.Fracturing well artificial micro earthquake real-time monitoring evaluationtechnology is based on micro seismic monitoring technology based on a dynamicmonitoring technology in oilfield production. Since the seventy’s of last century,Micro seismic monitoring technology at home and abroad have done extensiveresearch and Practice, Application of the technology, Has been achieved in manypractical effect in the oilfield production, Such as can make use of the technique ofmonitoring fracturing cracks spatial form, effective crack length, height and groundstress distribution, In order to improve the fracturing process, evaluation of fracturingeffect on fracturing pressure, capacity analysis and pattern arrangement to provide astrong basis. Fracturing artificial micro seismic monitoring also in the existingtechnology based on, Using fracturing is produced when the micro earthquake, the useof on-site monitoring systems, and computer and its corresponding expertinterpretation system, explanation, analysis of field monitoring data. Reservoirfracturing in low permeability reservoir is the important means to realize high andstable yield. Micro seismic monitoring is the reservoir fracturing in the most accurate, the most timely, most abundant information monitoring method. Real time microseismic imaging can guide fracturing engineering, timely adjustment of fracturingparameter; fracturing parameters and source parameters of the integrated analysis candetermine the maximum reservoir, minimum horizontal stress the main direction andstress history on the range of maximum value; fracturing, fracture direction, size,location tracking, objective evaluation of fracturing engineering effect for the nextstep, the production and development to provide effective guidance, reduce the cost ofdevelopment.