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罗 151井区位于沾化凹陷南部 ,沙三段辉绿岩稀油油藏是近年来济阳坳陷在下第三系发现、勘探开发效果最好的侵入岩油藏。该辉绿岩为岩盘型浅成侵入岩 ,大致在东营组沉积末期和馆陶组沉积中期两期顺层侵入于沙三段烃源岩中 ,有 4个亚相 :炭质板岩亚相 ,含堇青石硅灰石角岩亚相 ,边缘亚相 ,中心亚相。通过人机联作解释技术抽取联井地震测线、制作合成地震记录 ,提取了 2 0种地震特征参数 ,采用神经网络判识技术识别火成岩 ,编制出火成岩等厚图和顶面、底面构造图。该辉绿岩圈闭及储集空间 (原生的裂缝系统及晶间孔隙和次生的溶蚀孔、洞、拱张缝等 )的形成早于生油期 ,有良好的油源条件 ,烃源岩也是封盖层 ,断层及围岩中的微裂缝是主要油气运移通道 ,形成了硅灰石角岩微孔隙型油藏和辉绿岩孔隙 裂缝型油藏两种油藏类型。图 3参 3(王孝陵摘 )
The Luo 151 well is located in the southern part of Zhanhua sag, and the diabase reservoir of Es3 in Shahejie formation is the most intrusive rock reservoir discovered in the Lower Tertiary of Jiyang Depression in recent years. The diabase is a plate-type shallow intrusive rock that roughly intruded into the source rocks of the third member of Es 3 in the depositional phase of the Dongying Formation and the middle of the Guantao Formation. There are four subfacies: carbonaceous slate Phase, cordierite-bearing wollastonite hornstone facies, marginal subfacies, and central subfacies. Synthetic seismograms were made by means of human-computer interaction interpretation technique, synthetic seismograms were made, 20 kinds of seismic parameters were extracted, neural network identification technology was used to identify igneous rocks, and the igneous thickness maps and top and bottom tectonic maps . The formation of diabase traps and reservoirs (primary fracture system, intergranular pores and secondary dissolution pores, vugs, arched gaps, etc.) is earlier than oil generation and has favorable oil source conditions. Hydrocarbon source Rock is also a capping layer. Microfissures in the faults and surrounding rock are the major migration channels for oil and gas. Two types of reservoirs are formed: wollastonite microporous reservoir and diabase pore fracture reservoir. Figure 3 reference 3 (Wang Xiaoling pick)