确定岩石压缩系数公式，计算了双坨子气田岩石压缩系数。
The formula to calculate the compressive factor is defined and the factor of rock in Shuangtuozi gas field is acquired.
介绍了井下节流工艺原理、工具技术指标及适用范围，给出了具体实施方案设计在双坨子气田开发中的应用。
This paper introduces the principle, technical index of tools, and applicable scope of downhole throttling process, and provides a concrete plan implemented in Shuangtuozi gas field.
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