EUR 分级类比法在致密油资源评价中的应用—— 以三塘湖盆地芦草沟组为例

doi:10.3969/j.issn.1673-8926.2016.03.005

Lithologic Reservoirs ›› 2016, Vol. 28 ›› Issue (3): 27-33.doi: 10.3969/j.issn.1673-8926.2016.03.005

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Application of EUR distribution analogous method to tight oil assessment:A case study from Lucaogou Formation in Santanghu Basin

Gou Hongguang¹^，²， Zhao Lili²， L iang Guibin²， She Jiachao²， L iu Juntian²

1. School of Petroleum Engineering ， China University of Petroleum ， Qingdao 266580 ， Shandong ， China ； 2. Research Institute of Exploration and Development ， PetroChina Tuha Oilfield Company ， Hami 839009 ， Xinjiang ， China

Online:2016-05-20 Published:2016-05-20

Abstract

Abstract:

Tight oil resource assessment is still in the initial stage in China, and the understandings of the resource scale from different experts are different. The Lucaogou Formation in Santanghu Basin is typical tight oil reservoir,and source rock thickness, maturity and total organic carbon content are the main factors for controlling hydrocarbon enrichment. Combined with practical production, a geological classification evaluation criterion of favorable area was established, and three favorable areas for hydrocarbon exploration were selected. With the key parameters of EUR （ estimated ultimate recovery ） distribution analogous method as the core, the decline law of well production was applied to obtain the EUR value of single well in different evaluation areas. The reasonable well spacing method, delineation drilling test method and microseismic fracture monitoring method were used to study the well control area parameters,and multi-methods were mutually verified to ensure the scientificity and rationality of the evaluation results. The evaluation results have been applied to exploration and production, and effectively guided the oil and gas exploration deployment. This method has important reference for other tight oil region.

Key words: single sand body distribution patterns, sedimentary microfacies, lithologic reservoirs, Fuyu oil layer, Songliao Basin

G ou H ongguang 1,2,Zhao Li l i，Li ang G ui bi n 2,SheJi achao 2,Li u Junt i an . Application of EUR distribution analogous method to tight oil assessment:A case study from Lucaogou Formation in Santanghu Basin[J].Lithologic Reservoirs, 2016, 28(3): 27-33.

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