梨形脹管器的工作部分為錐體大端。當鉆具施加壓力時，錐體大端與套管變形部位接觸的瞬間所產生的側向力，擠漲套管變形部位。利用梨形脹管器與鉆術組合成整形管柱，依靠鉆具本身的重力或下擊器施加的沖擊力，迫使脹管器的錐形頭部，楔人變形套管部位，進行擠脹，實現恢復套管通徑尺寸的目的。
梨形脹管器規格型號
|
規格型號
Type
|
主要技術參數
Main Parameter
|
配接扣型
Connection
|
|
ZQ-114
|
適用套管Casing 4-1/2”(114.3mm); 整形尺寸分段the range of repaired size92.94.96.98.100;:整形率repaired rate98~99%
|
NC26
|
|
ZQ-127
|
適用套管casing 5”(127mm); 整形尺寸分段the range of repaired size 102.104.106. 108.110.112: 整形率repaired rate98~99%
|
NC31
|
|
ZQ-140
|
適用套管casing5-1/2”(139.7mm); 整形尺寸分段the range of repaired size 14.116.118.120.122.124:整形率 repaired rate98~99%
|
NC31
|
|
ZQ-168
|
適用套管casing168.28; 整形尺寸分段the range of repaired size140.142.144.146.148.150.152:整形率 repaired rate98~99%
|
NC38
|
|
ZQ-178
|
適用套管casing7”(177.8mm); 整形尺寸分段the range of repaired size154.156.158.160.162:整形率repaired rate 98~99%
|
NC38
|