impression block
impression composition 印模混合剂
impression block
a block with lead or another relatively soft material on the bottom of it, which is made up on drill pipe or tubing at the surface, run into a well, and allowed to rest on a tool or other object that has been lost in the well. When the block is retrieved, the size, shape, and position of the fish are obtained from the examination of the impression left in the lead, and an appropriate fishing tool may be selected.
IMPRESSION BLOCK
TUBO DE IMPRESSÃO - É um tubo preenchido com chumbo ou cera, colocado no poço, para colher a impressão da parte superior de um “peixe” (objeto perdido) a fim de ser avaliado o melhor método de recuperação deste.
Impression Block
A lead block which is run into a well and dropped onto the top of lost tools or other fish to obtain an impression of the top profile of the obstruction or fish lost in the hole.