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[1]张蔚红,何桂平,张庆龙,等.开发后期井震结合致密含钙砂体识别方法[J].断块油气田,2020,27(04):454-457,463.[doi:10.6056/dkyqt202004009]
 ZHANG Weihong,HE Guiping,ZHANG Qinglong,et al.Identification method of tight calcareous sandstone by well-seismic combination in the later stage of development[J].Fault-Block Oil and Gas Field,2020,27(04):454-457,463.[doi:10.6056/dkyqt202004009]
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开发后期井震结合致密含钙砂体识别方法(PDF)
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《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
27
期数:
2020年04
页码:
454-457,463
栏目:
默认栏目
出版日期:
2020-07-25

文章信息/Info

Title:
Identification method of tight calcareous sandstone by well-seismic combination in the later stage of development
作者:
张蔚红1何桂平2张庆龙3常刚4王莲芝5许文仟6
1.陕西能源职业技术学院资源与测绘工程学院,陕西 咸阳 712000;2.长庆实业集团有限公司,陕西 西安 7100163; 3.中国石油冀东油田分公司陆上作业区,河北 唐山 063299;4.中国石油集团渤海钻探培训中心,河北 沧州 062552; 5.中国石化中原油田分公司濮东采油厂,河南 濮阳 457001;6.东北石油大学地球科学学院,黑龙江 大庆 163318
Author(s):
ZHANG Weihong1 HE Guiping2 ZHANG Qinglong3 CHANG Gang4 WANG Lianzhi5 XU Wenqian6
1.School of Resources and Surveying Engineering, Shanxi Energy Institute, Xianyang 712000, China; 2.Changqing Industrial Group Co., Ltd., Xi’an 710016, China; 3.Operation Area of Onshore, Jidong Oilfield Company, PetroChina, Tangshan 063299, China;4.Staff education and Training Center, BHDC, CNPC, Cangzhou 062552, China; 5.Pudong oil production plant, Zhongyuan Oilfield Company, SINOPEC, Puyang 457001, China; 6.College of Earth Sciences, Northeast Petroleum University, Daqing 163318, China
关键词:
致密砂岩纵波阻抗井震联合开发后期
Keywords:
tight sandstone P-wave impedance well seismic combination later stage of development
分类号:
-
DOI:
10.6056/dkyqt202004009
文献标志码:
A
摘要:
致密含钙砂岩可以形成岩性遮挡,是油田开发后期剩余油分布的有利目标。针对仅仅基于井资料无法准确预测横向井间致密砂岩分布的难题,文中以测井曲线为基础,高密度地震资料为井间约束,采用序贯高斯模拟算法,井震联合识别致密含钙砂岩,并将研究成果应用于松辽盆地典型区块致密含钙砂岩的精确表征中。研究结果表明:研究区致密砂岩纵波阻抗大于8.0×107 kg·m-3·m·s-1;纵波阻抗变差函数垂向、主方向和次方向变程分别为5,1 000,600 m;SⅡ ̄12层致密含钙砂岩整体厚度介于0.5~1.0 m,整体上具有北厚南薄的特征;表征结果与后验井符合较好,显示了该方法较好的应用效果。井震结合致密砂体识别方法适用于开发后期油田的致密含钙砂岩精细描述。
Abstract:
Tight calcareous sandstone can form lithologic shelter, which is the favorable target for remaining oil distribution in the later stage of oilfield development. Aiming at the problem that single well data can not accurately predict the distribution of tight sandstone between wells laterally, based on the well logging curve and constrained by the high-density seismic data between wells, the tight calcareous sandstones were identified by using sequential Gauss simulation algorithm and well-seismic combination. The research results were applied to accurately characterize tight calcareous sandstone in typical blocks of Songliao basin. The results show that the value of P-wave impedance of tight sandstone is more than 8.0×107 kg·m3·m·s-1 in the study area. The vertical, main and secondary ranges of P-wave impedance variogram are 5, 1 000 and 600 m respectively. The overall thickness of tight calcareous sandstone of layer SⅡ-12 is 0.5-1m with the characteristics of thick in the north and thin in the south, which is in good agreement with the later test well and shows that the new method has good application effect. The identification method of tight sand body by well-seismic combination is suitable for the fine description of calcareous sandstone in the later stage of development.

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备注/Memo

备注/Memo:
更新日期/Last Update: 2020-07-24