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CN201330574Y 气体钻井用螺旋分流短节 失效 - 权利终止

气体钻井用螺旋分流短节
摘要：
一种气体钻井用螺旋分流短节，涉及石油天然气钻井钻具短节的制造技术领域，设计了一种既可满足携岩要求，也能满足钻梃与钻杆环空气流速度的气体钻井用螺旋分流短节，由分流短节本体和分流孔组成，分流短节本体是空心的圆柱体结构，在分流短接本体上由下向上设置有加长分流孔；解决了当流经螺杆钻具的气量超过额定工作气量时，导致螺杆转子转速过高，造成转子速度失控的问题；具有产生高速螺旋流，增强气流携岩能力、解决钻水平井时携岩要求气量与空气螺杆额定气量不一致的矛盾特点，可以提高气体钻井效率。
摘要（英）：

A helical shunt nipple for gas drilling relates to the manufacturing technical field of petroleum and gas drilling tool nipple, satisfying both the debris-carrying requirement and the air flow speed of the drill lever and the drill stem; the nipple comprises a shunt nipple body and shunt holes; the shunt nipple body has a hollow cylindrical structure and lengthened shunt holes are arranged from top to bottom on the shunt nipple body; the utility model solves the problem that when the air flow of the screw drilling tool exceeds the specified working air flow, the rotation speed of the screw rotor is too high and the rotor speed is out of control; the utility model can generate high-speed helical flow, reinforce air flow debris-carrying capacity, solve the inconsistence of the horizontal drilling debris-carrying required air flow and the air screw specified air flow, improve the gas drilling efficiency.

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