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。
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.
对于低压易漏井，或多套压系统下的地层，常常因地层承压能力差而发生井漏事故。
For the low pressure drain well, or more sets of strata under the pressure of the system, often due to poor formation pressure Wells leakage accident occurred.
为此研制开发小直径、小卡距、承压高、易操作的膨胀式封隔器系列，设计出适合套变井选层酸化、压裂以及薄层措施改造的多种工艺管柱。
Therefore, a series of special expanded packers with various kinds of advantages such as minor diameter, small spacing, and high bearing pressure, and simplify operation etc.
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