改進(jìn)的基于目標(biāo)的高精度沉積微相建模方法在蘇14加密實驗區(qū)的應(yīng)用
發(fā)布時間:2018-04-21 21:20
本文選題:測井約束反演 + 巖相模型; 參考:《成都理工大學(xué)學(xué)報(自然科學(xué)版)》2017年01期
【摘要】:探討適合鄂爾多斯盆地蘇里格地區(qū)地質(zhì)特征的相控建模方法。以蘇里格氣田蘇14加密實驗區(qū)為解剖對象,綜合運用地質(zhì)、測井和三維地震資料,在基于模型的測井約束反演結(jié)果基礎(chǔ)之上,用反演波阻抗數(shù)據(jù)協(xié)同模擬泥質(zhì)含量模型,進(jìn)而利用泥質(zhì)含量識別儲層的下限標(biāo)準(zhǔn)建立巖相模型;再利用巖相模型對砂體規(guī)模和展布進(jìn)行分析,并獲得基于目標(biāo)建模所需的各種參數(shù);最后用基于目標(biāo)體結(jié)果的方法(示性點過程法)建立高精度的三維沉積微相模型,開展不同"相控"條件下的屬性模型比較分析。結(jié)果表明沉積微相控制下的屬性模型中,心灘內(nèi)部儲層物性條件最好,其次是點壩,再次是河道微相;而以巖相控制的屬性模型無法反映不同沉積微相內(nèi)部儲層物性參數(shù)的數(shù)學(xué)期望值與方差值,模擬結(jié)果具有較大的隨機性。利用該方法所建的三維沉積微相模型可精細(xì)反映各微相的平面、剖面形態(tài)以及各微相的接觸關(guān)系,其約束下的屬性模型分相帶反映儲層的物性變化。
[Abstract]:A phase control modeling method suitable for the geological characteristics of Sulige area in Ordos Basin is discussed. Taking Su14 infilled experimental area of Sulige gas field as the anatomical object, using geological, logging and 3D seismic data synthetically, and based on the results of logging constrained inversion based on model, the mud content model is simulated with inversion wave impedance data in cooperation. Then, the lithofacies model is established by using the lower limit standard of identifying the reservoir with mud content, and then the sand body size and distribution are analyzed by using the lithofacies model, and the various parameters needed for the modeling based on the target are obtained. Finally, a high-precision 3-D sedimentary microfacies model is established by using the method based on the results of the object (the indicative point process method), and the attribute models under different "phase control" conditions are compared and analyzed. The results show that, in the attribute model controlled by sedimentary microfacies, the physical properties of reservoir in Xintan are the best, followed by point dam and channel microfacies. However, the attribute model controlled by lithofacies can not reflect the expected value and variance value of reservoir physical property parameters in different sedimentary microfacies, and the simulation results are relatively random. The 3D sedimentary microfacies model established by this method can accurately reflect the plane, profile shape and contact relationship of each microfacies, and the restricted attribute model can reflect the physical changes of the reservoir.
【作者單位】: 中國石化中原油田博士后工作站;中國石化中原油田勘探開發(fā)科學(xué)研究院;中國石油長慶油田公司蘇里格氣田研究中心;中國石化中原油田分公司開發(fā)管理部;中國石油化工股份有限公司上海海洋油氣分公司勘探開發(fā)研究院;
【基金】:國家重大科技專項(2011ZX05001)
【分類號】:P618.13
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