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重力流是辽河坳陷高升地区莲花油层的主要沉积类型。在该地区预测重力流砂体的方法是:①利用岩心划分重力流沉积类型;②建立各沉积类型的测井识别相模式;③利用测井资料,划分未取心井或井段的重力流沉积类型;④分析重力流沉积类型的平面组合和分布特征;⑤恢复古地貌,据重力流沉积理论,结合区域地质背景,分析主要搬运方向和堆积场所;⑥用改进的克里金插值法绘制重力流砂体等厚图。工作结果反映,高升地区重力流物质主要来自其东南侧的古中央凸起,可能由三处入湖,再自东北向西南搬运,形成重力流砂体。
Gravity flow is the main sedimentary type of Lianhua reservoir in the uplifted area of Liaohe depression. The methods of predicting gravity flow sand bodies in this area are as follows: (1) Gravity flow sedimentary types are divided by core; (2) Log identification phase patterns are established for each sedimentary type; (3) Logging data are used to divide gravity flow sediment Type; ④ Analyze the plane combination and distribution characteristics of gravity flow sedimentary types; ⑤ Restore the paleogeomorphology, according to gravity flow deposition theory, combined with the regional geological background, analyze the main handling direction and accumulation place; ⑥ Draw gravitation by improved Kriging interpolation method Flow sand body contour map. The results of the work reflect that the gravity flow material in the ascending region mainly comes from the ancient central bulge on the southeast side of the lake, possibly entering the lake from three places and then transporting it from northeast to southwest to form a gravity flow sand body.