Quantitative evaluation of controlling factors on EUR of shale gas wells in Weiyuan block

doi:10.3969/j.issn.1672-7703.2019.04.013

Abstract

Abstract: In terms of complex geological conditions, different stimulation effects on stimulation and multiple flow stages during the production, a dynamic model was established for shale gas reservoirs in Weiyuan Block. Then, controlling factors on the estimated ultimate recovery (EUR) was studied from the aspects of geological, technological and production conditions, and quantitatively evaluated by means of Monte Carlo method and principal component analysis. Finally, 5 principal components were determined, which comprehensively represent 98.31% information of 22 original indictors. Considering the static and dynamic data of over 60 production wells, the factors influencing the EUR are the drill-in rate and fracturing effect of Long1-1a. Precise geosteering to increase the drill-in rate, new technology and process are important or improving stimulated reservoir volume (SRV).

CLC Number:

Xiong Xiaolin. Quantitative evaluation of controlling factors on EUR of shale gas wells in Weiyuan block[J]. China Petroleum Exploration, 2019, 24(4): 532-538.

References

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