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许多石油公司和研究机构预言,90年代将大规模钻水平井,成为提高各种类型油气藏开发经济效益的主要技术手段之一。预测的主要依据如下:一、水平井开发油气藏的效果十分显著全世界已经在几乎所有类型油气藏中钻了水平井,取得很大的经济效益j和直井或常规定向斜井相比,水平井日产量增长比率约5倍,在北海的增长比率是6—20倍,在东方这一比率已达6倍。至今,已有一些油田以钻水平井为基础进行开发或再开发。如埃尔夫公司的罗斯帕
Many oil companies and research institutes have predicted that drilling large-scale horizontal wells in the 1990s has become one of the major technical measures to improve the economic efficiency of various types of reservoir development. The main basis for the prediction is as follows: I. The effect of horizontal well development on oil and gas reservoirs is remarkable. The world has drilled horizontal wells in almost all types of reservoirs and achieved great economic benefits. Compared with vertical wells or conventional directional inclined wells, water Hirai Nissan’s output growth rate of about 5 times the growth rate in the North Sea is 6-20 times in the East this ratio has reached six times. To date, some fields have been developed or re-developed on the basis of horizontal wells drilled. Such as Elf’s Rospar