【摘要】 根据侧视式孔内电视系统的特殊使用环境（圆孔和水）这一特点，标定了几个主要技术指标，如系统的垂直视场角、水平视场角，并给出了孔径与圆心角的关系曲线．这样在使用该电视系统进行孔内观测时，可以做出更确切的测井解释．进一步利用这些技术指标和曲线，能够直观而简便地测量和计算出裂缝及空洞等地质构造的精确尺寸，从而可使该电视系统从定性观察发展到定量测量的新阶段．更多还原

【Abstract】 In this paper,several technical specifications are defined according to the special working condition(cylindrical hole and water) of the sideway look borehole TV system.the specifications are the vertical angle of view of the system,horizontal angle of view of the system,and the curves of the bore diameter and central angle.Thus when the TV system is used in well logging accurate results can be obtained.Further,with the technical specifications and the curves,the accurate size of fissures,holes,etc,of the geological structure are obtained by the direct vision measuring method and simple computation.So the television system can be developed from the qualitative observation to the quantitative measurement.更多还原