Heavy Weight Drill Pipe
Pic-(Heavy Weight Drill Pipe)
Standard: APISPEC 7-1.APISPEC 7-2
HWDP is a kind of transitional diril stem between dril pipe and collar. t can effectively alleviate the sress concentrationin fransition section between collar and drill pipe and provide driling pressure, and it can effectively reduce connectionarea and wear rate between drill string and the well wall.
HWDP is a kind of transitional diril stem between dril pipe and collar. t can effectively alleviate the sress concentrationin fransition section between collar and drill pipe and provide driling pressure, and it can effectively reduce connectionarea and wear rate between drill string and the well wall.
