| 1. | The accumulation of oil is governed by lateral changes from permeable to impermeable facies .
石油的储集是受从渗透到不渗透的岩相横向变化控制的。 |
| 2. | It may be infeasible to say whether an observed magnetic anomaly results from structural relief or from a lateral change in susceptibility .
不可能指出一个观测磁异常是构造起伏还是磁化率的横向变化所引起。 |
| 3. | The peripheral oil fields of daqing have a poor reservoir property , obvious lateral alternation of sand body , and condensed faults
大庆外围油田储层物性差、砂体横向变化大、断层密集。 |
| 4. | 2 , the image of sn - wave velocity lateral variation is reconstructed in china continent by tomography method using 43646 sn rays
2 、用了43646条sn射线反演得到中国大陆上地幔顶部s波速度横向变化。 |
| 5. | However , fracture reservoirs formed by later structure stresses change quickly between wells and can not be correlated even between adjacent wells
由于是受后期构造应力作用，横向变化快，相邻井间不具有对比性。 |
| 6. | 1 , travel times of 91138 pn arrivals recorded from china and adjacent regional earthquakes are inverted in a tomographic study to map the lateral variations and anisotropy of pn velocity of the uppermost mantle
1 、用91138条pn射线的走时反演出中国大陆上地幔顶部的p波速度横向变化和各向异性分布。 |
| 7. | The non - linear optimum inversion technique is based on the seismic information and the constraints from structural model and logging information and the technique can extract optimum prediction of the lateral variety of reservoir
摘要非线性最优化反演技术是基于地震信息以及构造模型和测井信息形成的约束，采用最优化方法进行反演来最大限度地推断储层横向变化。 |
| 8. | When the anisotropy is not taken into account , the obtained image almost has the same variation pattern with that when anisotropy is considered . but pn velocities are not well consistent with geology for the former than the later
如果不考虑pn波速度的各向异性变化，波速横向变化的整体趋势和考虑各向异性时接近，但pn波速度与地质构造吻合得没有考虑各向异性时好。 |
| 9. | The upper yingshan formation in tahe oil field is analyzed in the light of the theory of high - frequency sequence stratigraphy ; it comprise of 4 fourth - order sequences , including two progradation parasequence sets and two retrogradation parasequence sets , and 28 fifth - order sequences
由于四级层序、五级层序是受米兰科维奇天文周期控制的异旋同成因层序，横向变化不大，能够在大范围内追踪对比。 |
| 10. | Practice showed that crosswell seismic data can outline minor structures that conventional seismic cannot reveal , can be used to determine reservoirs and their distributions that conventional seismic cannot distinguished , and to describe the spatial distribution of single sand bodies
实际资料解释表明，利用井间地震资料发现了常规地震所不能发现和确定的小构造，精确描述了常规地震无法分辨的储层及其横向变化特点，并且描述了单砂体的空间分布。 |
