“膨脹力”作用下致密砂巖儲(chǔ)層石油運(yùn)聚特征
發(fā)布時(shí)間:2018-01-28 10:37
本文關(guān)鍵詞: 致密油 運(yùn)移動(dòng)力 油氣成藏 泥質(zhì)隔、夾層 致密砂巖裂縫型油藏 儲(chǔ)層 出處:《吉林大學(xué)學(xué)報(bào)(地球科學(xué)版)》2017年05期 論文類型:期刊論文
【摘要】:在致密油成藏動(dòng)力已有認(rèn)識(shí)的基礎(chǔ)上,從力的性質(zhì)和作用效果的角度,對(duì)比分析了推動(dòng)石油在致密儲(chǔ)層中運(yùn)移的"膨脹力"與常規(guī)儲(chǔ)層情況下浮力之間的區(qū)別。論述了在"膨脹力"作用下,石油在理想致密砂巖模型中的運(yùn)移模式、運(yùn)移距離及致密油藏?cái)U(kuò)張規(guī)律;谝陨险J(rèn)識(shí)并結(jié)合實(shí)例,建立模型從動(dòng)力學(xué)的角度分析了致密砂巖中隔、夾層及裂縫對(duì)石油運(yùn)移富集的影響。分析認(rèn)為:由于致密油與常規(guī)儲(chǔ)層油藏在運(yùn)移動(dòng)力及運(yùn)移模式上的差別,致密砂巖中隔、夾層將會(huì)在一定程度上阻礙石油的運(yùn)移,造成成藏上物性較好的"空白帶";在致密砂巖裂縫型油藏中,與裂縫直接接觸物性較好的砂體是最具可能性的石油聚集區(qū)帶。
[Abstract]:On the basis of the known knowledge of the dynamics of dense oil reservoir formation, from the point of view of the nature of force and the effect of action. This paper compares and analyzes the difference between the "expansion force" which promotes the migration of oil in the tight reservoir and the buoyancy in the case of conventional reservoir, and discusses the migration mode of petroleum in the ideal tight sandstone model under the action of "expansion force". The migration distance and the law of tight reservoir expansion. Based on the above understanding and an example, the model is established to analyze the tight sandstone intermedia from the angle of dynamics. The influence of intercalation and fracture on petroleum migration and enrichment. The analysis shows that the tight sandstone is separated because of the difference between tight oil reservoir and conventional reservoir in migration dynamics and migration mode. The intercalation will hinder the migration of oil to some extent, resulting in a better physical properties of the "blank zone". In the tight sandstone fractured reservoir, the sand body with good physical property directly contact with the fracture is the most likely oil accumulation zone.
【作者單位】: 油藏地質(zhì)及開發(fā)工程國(guó)家重點(diǎn)實(shí)驗(yàn)室;西南石油大學(xué)地球科學(xué)與技術(shù)學(xué)院;中國(guó)石油新疆油田分公司勘探開發(fā)研究院;中國(guó)石油長(zhǎng)慶油田分公司勘探開發(fā)研究院;
【基金】:國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(“973”計(jì)劃)項(xiàng)目(2014CB239005) 國(guó)家自然科學(xué)基金項(xiàng)目(41502146) 中國(guó)石油科技創(chuàng)新基金項(xiàng)目(2015D-5006-0101)~~
【分類號(hào)】:P618.13
【正文快照】: 3.中國(guó)石油新疆油田分公司勘探開發(fā)研究院,新疆克拉瑪依8340004.中國(guó)石油長(zhǎng)慶油田分公司勘探開發(fā)研究院,西安710018Supported by the Major State Basic Research Development Program(“973”Program)of China(2014CB239005),theNational Natural Science Foundation of Chin
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