Insert for variable orifice shutter

The invention discloses a blowout preventer (BOP) assembly. The BOP assembly includes a body portion, a bore extending through the body portion, and a ram block assembly. The ram block assembly includes a first ram block movable into the bore and a second ram block movable into the bore. The ram block assembly further includes an insert disposed within each of the first ram block and the second ram block, the insert movable to vary a sealing diameter of the ram block assembly, where each insert includes a plurality of lips extending into a void formed between adjacent inserts, respective lips are positioned along intersecting regions of adjacent inserts. 本发明公开了一种防喷器(BOP)组件，该BOP组件包括主体部分、延伸穿过主体部分的孔，以及闸板块组件。闸板块组件包括可移动到孔中的第一闸板块和可移动到孔中的第二闸板块。闸板块组件还包括插入件，该插入件布置在第一闸板块和第二闸板块中的每一者内，该插入件可移动以改变闸板块组件的密封直径，其中每个插入件包括延伸到形成在相邻插入件之间的空隙中的多个唇缘，相应的唇缘沿着相邻插入件的相交区域定位。