›› 2012, Vol. 33 ›› Issue (5): 1-1.

• 论文 •    

准噶尔盆地车排子地区“油亮点”形成机理及识别方法

任新成1,王 睿2a,魏秀萍2a,马艳君2b   

  1. (1.中国石化 胜利油田分公司 西部新区研究中心,山东 东营 257000;2.中国石油 新疆油田分公司 a.实验检测研究院;b.采油一厂,新疆 克拉玛依 834000)
  • 出版日期:2019-01-01 发布日期:1905-07-12

Formation Mechanism and Identification of Oil Bright Spot in Chepaizi Area of Junggar Basin

REN Xincheng1, WANG Rui2a, WEI Xiuping2a, MA Yanjun2b   

  1. (1.Western New Prospect Research Center, Shengli Oilfield Company, Sinopec, Dongying, Shandong 257000, China; 2.PetroChina Xinjiang Oilfield Company, a.Research Institute of Experiment and Detection, b.No.1 Production Plant, Karamay, Xinjiang 834000, China)
  • Online:2019-01-01 Published:1905-07-12

摘要: 准噶尔盆地车排子地区排2井在新近系沙湾组获得高产工业油流,排2井油藏在地震剖面上具有油亮点特征。利用正演检测确定了油亮点的地震反射特征,并通过分析影响油层及其围岩波阻抗变化的因素,明确了油亮点的形成机理。利用地震振幅属性描述技术、分频检测技术和叠前AVO属性技术对油亮点进行识别,并结合勘探实践总结了3种常见的假亮点。

Abstract: High?yielding commercial oil flow was acquired from Well Pai?2 in the Neogene Shawan formation in Chepaizi area of Junggar basin. In seismic profile, since Well Pai?2 oil reservoir has bright spot characteristic, it is called“oil bright spot”. In this paper, the seismic reflection characteristic of such an“oil bright spot”was confirmed by means of forward modeling, and its formation mechanism was defined by analyzing the influence factors of wave impedance changes of the reservoir and its surrounding rocks. And then the oil bright spots were identified by using seismic amplitude attribute description, frequency decomposition and prestack AVO techniques. Three common bright spot pitfalls were also summed up by integrated with the exploration practice for the purpose of improving the success ratio of petroleum exploration in the future

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