本文選題：海上油田　切入點：層序地層學　出處：《海洋地質前沿》2016年11期

【摘要】：渤海新近紀淺水三角洲沉積儲層縱橫向變化快、隔夾層發(fā)育,在少井條件下如何開展儲層展布研究及水平井部署是海上油田開發(fā)早期亟待解決的問題。以渤中A油田淺水三角洲相X沉積體為例,據巖心、測井、地震等資料分析儲層沉積特征,在高分辨率層序地層學指導下細分成因單元,分析單砂體對應測井、地震波形特征并刻畫其展布。研究區(qū)儲層類型以疊置分流河道、河口壩及河道間沉積為主,結合高分辨率地層學將目的層劃分為1個短期旋回、4個超短期旋回,反映了一套基準面逐漸下降至暴露環(huán)境,后基準面上升至再次湖泛的過程。根據儲層沉積特征、地震響應特征和復合砂體精細構型研究,識別出復合砂體的3種接觸關系,同時對X沉積體進行了單河道識別和隔夾層分布規(guī)律研究,將X沉積體細分為3期單元砂體,并總結出3種儲層結構類型,結合已有水平井的生產動態(tài)特征,提出X沉積體水平井部署的4種開發(fā)模式,有效指導了開發(fā)井實施。
[Abstract]:In the Neogene shallow water delta sedimentary reservoir in Bohai Sea, the vertical and horizontal direction changes rapidly and the intercalation is developed. How to develop reservoir distribution and horizontal well deployment under the condition of few wells is an urgent problem to be solved in the early stage of offshore oilfield development.Taking the X sedimentary body of shallow water delta facies in Bozhong A Oilfield as an example, the sedimentary characteristics of reservoir are analyzed according to core, logging and seismic data. Under the guidance of high resolution sequence stratigraphy, genetic units are subdivided to analyze the corresponding logging of single sand body.The characteristics of seismic waveform and its distribution are described.The reservoir types in the study area are mainly superimposed distributary channel, estuarine dam and interchannel sedimentation. Combined with high resolution stratigraphy, the target layer is divided into a short cycle and four ultra short term cycles, which reflects the decreasing of a set of datum level to exposed environment.The process of rising to the level of the lake again.According to reservoir sedimentary characteristics, seismic response characteristics and fine configuration of composite sand body, three contact relationships of composite sand body are identified. At the same time, single channel identification and intercalation distribution law of X sedimentary body are studied.X sedimentary body is subdivided into 3 stage unit sand bodies, and three reservoir structure types are summarized. Combined with the production dynamic characteristics of existing horizontal wells, four development models of horizontal wells in X sedimentary body are put forward, which effectively guide the implementation of development wells.
【作者單位】： 中海石油(中國)有限公司天津分公司渤海石油研究院;
【分類號】：TE53;P618.13

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1 王家t;;我國南海南部毗鄰國家海上油田生產情況[J];中國海上油氣;1989年02期

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本文編號：1707420