【摘要】：四川盆地上震旦統(tǒng)燈影組微生物碳酸鹽巖主要發(fā)育在燈二段和燈四段。燈二段以凝塊石和葡萄石為主,儲集空間類型有葡萄-花邊狀孔洞、微生物體腔孔、微生物格架孔和凝塊間溶孔;縱向上發(fā)育3個儲層段,儲層瀝青集中發(fā)育在桐灣Ⅰ期不整合面之下117 m。燈四段則發(fā)育紋層石和疊層石,儲集空間則以窗格孔和巖溶孔洞為主,輔以凝塊間溶孔和微生物體腔孔;亦發(fā)育3個儲層段,儲層瀝青發(fā)育在桐灣Ⅱ期不整合面之下134.2 m。四川盆地?zé)粲敖M微生物巖儲層形成和分布主要受控于淺水潮坪微生物席、微生物結(jié)構(gòu)、白云石化和綿陽-長寧拉張槽。廣布的淺水潮坪微生物席建造是優(yōu)質(zhì)儲層發(fā)育的基礎(chǔ),微生物結(jié)構(gòu)影響著儲層的初始差異性,白云石化作用是微生物巖儲層形成的關(guān)鍵,綿陽-長寧拉張槽控制下的風(fēng)化殼巖溶和埋藏溶蝕作用決定了微生物巖優(yōu)質(zhì)儲層的改造強度和展布,燈影組微生物巖優(yōu)質(zhì)儲層主要分布于綿陽-長寧拉張槽東西兩側(cè)的邊緣帶。
[Abstract]:The microbial carbonate rocks of the Dengying formation of the Upper Sinian in Sichuan Basin are mainly developed in the second and fourth member of the lantern formation. The second stage of the lamp is mainly composed of agglomerate and grapestone, and the reservoir space types include grape-lace cavity, microorganism lattice pore and solubilization pore between coagulants, and three reservoir segments are developed longitudinally. The reservoir asphalt is concentrated at 117 m below the unconformable surface of Tongwan stage 鈪，

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