碳酸盐岩地层抗钻特性预测方法研究及应用

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摘要碳酸盐岩地层是目前我国富含油气资源的主要地层，其地层抗钻特性参数的准确合理预测是油气资源高效合理开发的重要保证。通过室内岩芯试验，结合现场测井资料，运用数理统计方法研究分析碳酸盐岩地层岩石可钻性、抗压强度与声波时差，塑性系数与泊松比以及地面声波时差与测井声波时差、纵波时差与横波时差的相关关系，建立利用测井资料预测碳酸盐岩地层抗钻特性参数的预测模型。通过室内实测资料对预测模型进行验证，预测精度达90%，能够满足工程需要。利用已建立的地层抗钻特性参数测模型对川东北元坝区块海相碳酸盐岩地层的抗钻特性进行研究和分析，为该地区海相地层钻头类型和钻进参数的优选提供合理依据。

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关键词 ：岩石力学, 碳酸盐岩地层, 抗钻特性, 测井资料, 数学模型, 预测, 元坝区块

Abstract：As the important formation that is rich in oil and gas，predicting anti-drilling parameters of carbonate formation is the guarantee for efficient development of oil and gas. Based on anti-drilling parameters measured in lab and on-site logging data，the correlations of the rock drill ability and compressional wave offset time，compressive strength and compressional wave offset time，plasticity coefficient and Poisson's ratio，and the correlation between compressional wave offset time of rock surface and the down hole-logged compressional wave offset time，compressional wave offset time and shear wave offset time were studied by means of mathematical statistics. The mathematical models were established to predict anti-drilling parameters of carbonate formation. By substituting the logging data into the prediction model for calculations，the prediction accuracy is up to 90%. Using the established mathematical models，the anti-drilling characteristics of marine formation in Yuanba block were researched and that will provide the reasonable basis for bit selection and drilling parameters optimization.

Key words： rock mechanics carbonate formation anti-drilling parameters logging data mathematical model prediction Yuanba block

收稿日期: 2010-11-27

引用本文:

邹德永1，曹继飞2，袁军1，孙源秀1. 碳酸盐岩地层抗钻特性预测方法研究及应用[J]. 岩石力学与工程学报, 2011, 30(S2): 3851-3856.
ZOU Deyong1，CAO Jifei2，YUAN Jun1，SUN Yuanxiu1. RESEARCH AND APPLICATION OF PREDICTING ANTI-DRILLING PARAMETERS OF CARBONATE FORMATION. , 2011, 30(S2): 3851-3856.

链接本文:

http://www.rockmech.org/CN/Y2011/V30/IS2/3851

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