【摘要】：為明確Y9井區(qū)奧陶系潛山下一步勘探開(kāi)發(fā)方向,利用巖心觀察、薄片鑒定、物性數(shù)據(jù)分析等技術(shù)方法,結(jié)合測(cè)井、地震等解釋成果,對(duì)冀中坳陷Y9井區(qū)奧陶系潛山儲(chǔ)層特征及控制因素進(jìn)行研究。結(jié)果表明:Y9井區(qū)奧陶系潛山儲(chǔ)層巖性主要為灰?guī)r,其次為白云巖,儲(chǔ)層物性較差,儲(chǔ)集空間以次生成因的晶間孔、粒間(內(nèi))溶孔為主,且發(fā)育構(gòu)造縫、構(gòu)造—溶蝕縫和溶洞,屬低孔、低滲的裂縫—孔隙型、孔隙—裂縫型儲(chǔ)層;儲(chǔ)層發(fā)育受沉積、成巖、巖溶、構(gòu)造等4個(gè)方面作用影響,灰云坪、云坪微相中儲(chǔ)層最發(fā)育,白云石化、溶蝕作用大大改善了儲(chǔ)層的最終物性,奧陶系潛山頂部和斷層發(fā)育帶附近巖溶作用發(fā)育,多形成優(yōu)質(zhì)儲(chǔ)層,構(gòu)造作用產(chǎn)生構(gòu)造裂縫,改善了儲(chǔ)層滲濾能力。
[Abstract]:In order to make clear the next exploration and development direction of Ordovician buried hill in Y9 well area, using core observation, thin slice identification, physical property data analysis and other technical methods, combined with well logging, seismic interpretation and other results, The reservoir characteristics and controlling factors of Ordovician buried hill in Y9 well area of Jizhong depression are studied. The results show that the lithology of Ordovician buried hill reservoir in Y9 well area is mainly limestone, followed by dolomite, the reservoir physical property is poor, the reservoir space is mainly composed of intergranular pores and intergranular (internal) dissolved pores, and structural fractures, structure-corrosion fractures and caverns are developed. The reservoir development is affected by sedimentation, diagenesis, karstification and structure. The reservoir is the most developed in Liyunping and Yunping microfacies, and dolomitization, The dissolution greatly improves the ultimate physical properties of the reservoir. The karst process develops at the top of the Ordovician buried hill and near the developed fault zone, and the high quality reservoir is formed, the tectonic process produces structural fractures and improves the percolation ability of the reservoir.
【作者單位】： 中國(guó)石油華北油田公司地球物理勘探研究院;
【基金】：中國(guó)石油天然氣股份有限公司重大科技專(zhuān)項(xiàng)“華北油田上產(chǎn)穩(wěn)產(chǎn)800萬(wàn)噸關(guān)鍵技術(shù)研究與應(yīng)用”(2014E-35)
【分類(lèi)號(hào)】：P618.13
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本文編號(hào)：2280725