遼東凸起東營組砂巖成巖作用及其對(duì)儲(chǔ)層的影響
[Abstract]:In order to determine the sandstone reservoir characteristics of Dongying formation in Liaodong uplift, the petrology, diagenesis and controlling factors were analyzed by means of polarizing microscope, scanning electron microscope, rock pyrolysis, X-ray diffraction and inclusion temperature measurement. The results show that the main rock types of Dongying formation reservoir are lithic feldspathic sandstone and feldspathic sandstone with low integral number of complex matrix, and the diagenetic stages are early diagenetic stage B and middle diagenetic stage A. The main diagenesis types include mechanical compaction, cementation and dissolution, including deposition, early diagenetic compaction and calcite cementation. And the filling of clay minerals such as authigenic kaolinite is the main diagenesis to destroy the reservoir pores, and the feldspar dissolution in the middle and late diagenesis is the main diagenesis to improve the reservoir physical properties. Sedimentary process determines the number of primary pores in reservoir in the study area, and diagenesis controls the degree of transformation of primary pores and the development of secondary pores in the reservoir. The results provide geological basis for oil and gas exploration in Dongying formation of Liaodong uplift and reference for the study of similar reservoirs in other structural blocks of Liaodong Bay.
【作者單位】: 成都理工大學(xué)油氣藏地質(zhì)及開發(fā)工程國家重點(diǎn)實(shí)驗(yàn)室;成都理工大學(xué)能源學(xué)院;
【基金】:國家自然科學(xué)基金項(xiàng)目(41172119) 中海油天津分公司項(xiàng)目(CCL2013TJXSBS1880)
【分類號(hào)】:P618.13
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