印尼A油田礁灰岩储层的三维孔隙压力预测及可视化
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TE343

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中国石油天然气集团有限公司-中国石油大学(北京)战略合作科技专项(编号:ZLZX2020-XX)资助。


Three-dimensional pore pressure prediction and visualization of reef limestone reservoirs in Indonesia A oilfield
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    摘要:

    礁灰岩储层由于成岩过程复杂,非均质性强,存在多种成压机制,常规的孔隙压力预测方法往往无法准确预测礁灰岩储层的孔隙压力变化规律。本文首先通过岩性分析和工程分析法准确判断印尼A油田礁灰岩储层的成压机制;充分利用三维地层层速度数据,并使用Kriging插值方法和Eaton法,准确获取印尼A油田礁灰岩储层三维孔隙压力分布规律,计算结果三维可视化。印尼A油田礁灰岩储层的成岩过程主要受胶结作用影响,孔隙压力主要集中在1.01-1.10 g/cm3,无异常高压存在,同时孔隙压力的数值大小呈现出强的非均质性。针对灰岩储层的孔隙压力预测,工程分析法并结合常规孔隙压力预测方法,精度高,灵活,能够满足实际钻完井需求。

    Abstract:

    Due to the complex diagenesis process, strong heterogeneity, and various lamination mechanisms of reef limestone reservoirs, conventional pore pressure prediction methods often cannot accurately predict the pore pressure change law of reef limestone reservoirs. This paper accurately analyzes the pressure mechanism of the reef limestone reservoir in Indonesia A Oilfield by engineering analysis method and Lithology analysis; Combined three-dimensional formation velocity data , The Kriging interpolation method and the Eaton method are used to accurately obtain the three-dimensional pore pressure distribution of the reef limestone reservoir in Indonesia A Oilfield, calculation results are 3D visualization. The diagenesis process of the reef limestone reservoir in Indonesia A Oilfield is mainly affected by cementation. The diagenesis process of the reef limestone reservoir in Indonesia A Oilfield is mainly affected by cementation. The pore pressure is mainly concentrated in 1.01-1.10 g/cm3, abnormal high pressure is not exist, and the numerical value of pore pressure shows strong heterogeneity. Aiming at the pore pressure prediction of limestone reservoirs, Conventional pore pressure prediction method combined with engineering analysis method has high accuracy, flexibility ,and can meet actual drilling and completion requirements.

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蔡文军,邓金根,张建峰,等. 印尼A油田礁灰岩储层的三维孔隙压力预测及可视化[J]. 科学技术与工程, 2021, 21(21): 8863-8869.
Cai Wenjun, Deng Jingen, Zhang Jianfeng, et al. Three-dimensional pore pressure prediction and visualization of reef limestone reservoirs in Indonesia A oilfield[J]. Science Technology and Engineering,2021,21(21):8863-8869.

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  • 收稿日期:2020-11-09
  • 最后修改日期:2021-04-02
  • 录用日期:2021-03-26
  • 在线发布日期: 2021-08-11
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