With the decelopment of well testing technology, drill stem test (DST) has become more and more important during the well drilling process, and it has become one of measures to gain the information of the formation flow and fluidbatch.

The well test PC pump is originally mended on the basis of downhole motor. To fit the well testing requirement we amend the structure of this product. The well test PC pump is well matched with ordinary DST pipe, which can do the drill stem test and testing operation on the bleed well or non-flowing well. This kind of pump can be characterized with simple test string, convenient implement and visual test data.

The well test PC pump mainly includes head sub, single progressive cavity pump, cardan shaft and transmission shaft assembly. The transmission shaft assembly has special designed sealing box. It improves its load and working time without interruption.

SPECIFICATIONS