| 王铁成,卫乾,熊伟,王强强,张宁俊,史亚会,杨兵,王新华.基于多随钻测井数据的地层压力监测方法*[J].,2025,43(3):744-750 |
| 基于多随钻测井数据的地层压力监测方法* |
| Formation pressure monitoring methods based on multi drilling logging data |
| 投稿时间：2023-11-30 修订日期：2024-08-16 |
| 中文摘要: |
| 地层压力的准确预测是油气资源高效开采的前提，目前已形成了多种地层压力随钻监测方法，并取得了广泛的应用。通过测井数据开展地层压力预测是一种常用的地层压力监测方法，然而目前通过该方法由于伊顿常数等关键参数难以准确获取的问题，导致在部分区域未能满足地层压力高精度预测的需求。本文基于声波测井地层压力评价方法及密度测井地层压力评价方法，结合GRNN模型，构建了一种新的基于多随钻测井数据的地层压力监测方法，通过多测井数据计算得到的地层压力与实测地层压力数据间的耦合影响，对地层压力预测值实现快速迭代优化。研究成果表明相较于单独通过声波测井数据及密度测井数据得到的地层压力评价结果，通过本文方法能够更快速地得到地层压力预测值，且误差更小。与Dc指数法及岩石强度法等目前常用的地层压力预测方法相比，通过本文方法得到的地层压力评价结果误差最小。研究成果通过浙江油田ZT区块相关数据进行了对比验证，在该地区具有较好的适用性。 |
| 英文摘要: |
| The accurate prediction of formation pressure is the prerequisite for efficiently exploiting oil and gas resources—various methods for monitoring formation pressure while drilling have been developed and widely applied. Predicting formation pressure through logging data is commonly used to monitor formation pressure. However, due to the difficulty in accurately obtaining key parameters such as Eaton constants, the method currently fails to meet the demand for high-precision prediction of formation pressure in some areas. Based on the acoustic logging formation pressure evaluation method and the density logging formation pressure evaluation method, combined with the GRNN model, this paper constructs a new formation pressure monitoring method based on multiple logging data while drilling. The coupling effect between the formation pressure calculated from multiple logging data and the measured formation pressure data is used to optimize the formation pressure prediction value rapidly. The research results show that compared to the formation pressure evaluation results obtained through acoustic and density logging data alone, the formation pressure prediction value obtained through this method can be obtained more quickly with more minor errors. Compared with the commonly used formation pressure prediction methods, such as the DC index and rock strength techniques, this paper''s formation pressure evaluation results have the slightest error. The research results were verified by comparing relevant data from the ZT block of Zhejiang Oilfield and have good applicability in this region. |
| DOI：10.11684/j.issn.1000-310X.2025.03.023 |
| 中文关键词: 地层压力 随钻监测 声波测井 密度测井 |
| 英文关键词: formation pressure monitoring while drilling acoustic logging density logging |
| 基金项目:中国石油天然气股份有限公司投资信息化重点项目“勘探开发一体化协同研究及应用平台 ( 一期 ) 建设”(PetroChina-IT-2017-N104) |
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