| 典型地层的各向异性钻井特性 |
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| 引用本文： | 高德利,刘希圣. 典型地层的各向异性钻井特性[J]. 中国石油大学学报(自然科学版), 1990, 0(5) |
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| 作者姓名： | 高德利 刘希圣 |
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| 作者单位： | 石油大学 北京(高德利)，石油大学 北京(刘希圣) |
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| 摘 要： | 采用岩石可钻性方法描述地层的各向异性,并按地层各向异性的不同情况,将典型地层(包括正交各向异性地层和横观各向同性地层)划分为12类。在文献[10]的基础上,定义了两个地层特性参数,用来定量表达典型地层的各向异性钻井特性。通过地层特性参数的计算和分析,阐明了12类典型地层对井斜变化和方位漂移的影响规律,即其中大多数地层遵循“上倾规律”或“下倾规律”。
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| 关 键 词： | 岩石可钻性 定向钻井 地层各向异性 井眼轨迹 |
ANISOTROPIC DRILLING CHARACTERISTICS OF TYPICAL FORMATIONS |
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| Gao Deli Liu Kisheng University of Petroleum. ANISOTROPIC DRILLING CHARACTERISTICS OF TYPICAL FORMATIONS[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1990, 0(5) |
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| Authors: | Gao Deli Liu Kisheng University of Petroleum |
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| Abstract: | Anisotropy of the formations is described with rock-drillabi-lity method in this paper. The typical formations (including the orthogonally anisotropic from tion and the transversely isotropic formation) are divided into twelve types according to the formation anisotropy. Two parameters to express quantitatively anisotropic drilling characteristics of the formations are defined in this paper. The effects of each formation on build/drop tendency and the walk tendency are illustrated through the parametric study. Most formations discussed in this paper are of the characteristics of up-dip tendency or down-dip tendency. |
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| Keywords: | Rock mechanics Directional well Formation anisotropy Borehole locus |
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