【摘要】：針對廣西北部灣盆地潿洲A油田流一段下層序儲層非均質(zhì)性強(qiáng)、儲量難以動用的問題,從高分辨率層序地層格架和沉積微相研究出發(fā),并結(jié)合井控提高分辨率技術(shù),指導(dǎo)砂體精細(xì)解釋和落實;進(jìn)而利用振幅統(tǒng)計分析優(yōu)選地震屬性和AVF反演預(yù)測孔隙度2種方法相融合刻畫優(yōu)質(zhì)儲層,尋找儲層"甜點(diǎn)"。通過該技術(shù)的應(yīng)用,厘清了扇三角洲多期多旋回沉積內(nèi)幕及各期砂體的展布、疊置特征,刻畫了單砂體內(nèi)部非均質(zhì)特征,使儲層空間展布形態(tài)和內(nèi)部物性變化得以精細(xì)描述;以此為依據(jù),潿洲A油田在二期開發(fā)實施前,對井位、井軌跡進(jìn)行了調(diào)整及優(yōu)化,實施后取得了較好的開發(fā)效果。該技術(shù)針對性較強(qiáng),快速有效,可以作為勘探開發(fā)一體化成功應(yīng)用實施的典型案例。
[Abstract]:In order to solve the problem of strong heterogeneity and hard to use reserves in the lower sequence reservoir of Weizhou A oil field in Weizhou Bay Basin, Guangxi, starting from the study of high-resolution sequence stratigraphic framework and sedimentary microfacies, and combining well control to improve the resolution, To guide the fine interpretation and implementation of sand bodies; Furthermore, the two methods of amplitude-statistical analysis of optimal seismic attributes and AVF inversion prediction of porosity are combined to depict high quality reservoirs and to search for "dessert" of reservoirs. Through the application of this technology, the multi-period multi-cycle sedimentary insider of fan delta and the distribution and overlay characteristics of sand bodies in each period are clarified, and the heterogeneity of single sand body is depicted, which makes the spatial distribution of reservoir shape and the change of internal physical properties more accurately described. On the basis of this, well location and well trajectory were adjusted and optimized before the second stage of development in Weizhou A oilfield, and good development results were obtained. This technology has strong pertinence and is fast and effective. It can be used as a typical case of successful application of integrated exploration and development.
【作者單位】： 中海石油(中國)有限公司湛江分公司研究院;
【基金】：國家重大課題專項“南海西部海域低滲油藏勘探開發(fā)關(guān)鍵技術(shù)”(2016ZX05024-006)
【分類號】：P618.13

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