Some problems such as high cost of tripping the tubing string, limited injection pressure and insufficient gas supply will be faced when gas lift is used as an artificial lift method for deep Wells.

深井用伴生气经压缩机增压后进行气举采油，将碰到起下油管作业费用大、地面注气压力有限、气源将可能不足以满足各井需求等问题。

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This plugging technology uses tubing to carry plugging agent, and is characterized by less volume of agent, thin plugging, high pressure bearing and easy unplugging.

该工艺采用油管携带堵剂的方式，具有堵剂用量少、堵得浅、承压强度高、工艺简便、易解堵等特点。

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The fiction can prevent large loads caused by high pressure and high temperature from spreading, which can result in severe deformation in a short part of tubing.

摩擦力大小和方向的改变，将使因高温高压产生的较大载荷无法向远处扩散，从而引起油管局部严重变形。

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