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Sequence Stratigraphy Study of Silurian in Tazhong Area, Tarim Basin

Author: ZhangLei
Tutor: LuShuangZuo；LiQiMing
School: Daqing Petroleum Institute
Course: Mineral prospecting and exploration
Keywords: Mineral prospecting and exploration Sequence Sequence division Stratigraphic framework Sedimentary facies Silurian Tarim Basin
CLC: P539.2
Type: Master's thesis
Year: 2007
Downloads: 371
Quote: 2
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Abstract


Study using a combination of sequence stratigraphy , sedimentology, seismic stratigraphy , reservoir geology of the latest theories and methods , seismic, logging , logging , core analysis data , the central Tarim Basin Silurian the strata sequence stratigraphic framework , sedimentary facies in-depth analysis and research , conducted a preliminary analysis and prediction of favorable reservoir . Fruitful sequence stratigraphy and sedimentology theory, the future of oil and gas exploration and development is an important reference value . After a year of three-dimensional seismic data interpretation and well - shock combination of high-frequency sequence stratigraphic studies , on the basis of comprehensive study and results map compilation , the central Tarim Basin Chi Silurian strata sequence stratigraphic framework achieved the following results and knowledge , sedimentary facies and reservoir distribution : preliminary sort out the tower Silurian sequence stratigraphic framework , the establishment of high-resolution sequence stratigraphic division . According to the earthquake, comprehensive logging , logging , core , according to the principle of contrast between the well tower in Chi Silurian strata is divided into three third-order sequences , and further identified six systems tracts and 15 four sequence or parasequence sets . 2 , clear the tower Chi the Silurian sedimentary facies , sedimentary patterns and distribution characteristics of sedimentary system . Studies have shown that research intervals mainly developed non- the barrier debris tidal flat facies , tidal flat further distinguished with the tide , intertidal and subtidal zone three sub tower in tidal flat deposits mainly developed subtidal zone tidal channel , intertidal sand flat on the floor and the tide with mud floors and other micro-phase mixed flat and intertidal sand and mud with mud . 3 , the basic figure out the Silurian tower sand body distribution law , the establishment of the reservoir geological model . 4 , the key blocks of the tower was fine well seismic joint inversion and reservoir prediction , to improve the accuracy of identification of the sand body . 5 , in the sequences , sedimentary facies and a favorable sand body distribution law comprehensive study on the basis of the tower in the region , pointing out that the favorable exploration targets and the recommendations of the evaluation of the next step development well locations .

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CLC: > Astronomy,Earth Sciences > Geology > Historical geology, stratigraphy > Various types of stratigraphy > Sequence stratigraphy
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