Open hole drill stem testing VR safety joint
The VR safety joint is run immediately above the packer assembly to ensure that a minimum number of tools are left in the hole if it becomes necessary to release the safety joint. The tool's bypass feature acts as an auxiliary to the Hydrospring tester bypass to allow fluid to pass though the packer while the work string is being pulled out of the hole.
A spline and lug arrangement, joining the male and female parts of the left-hand safety joint thread, lock to prevent unintentional back-off from the tool during normal manipulation of the drill pipe during testing. Because of the spline and lug configuration, the slips must be dropped in place before the drill pipe is lowered after every stand of pipe is pulled out of the hole.
Oil well Open hole Drill stem testing VR safety join
ZZ TOP OIL TOOLS is the professional manufacturer for the drill stem testing tools and surface testing equipment. All the DST tools are conformed with NACE MR 0175 with traceability,and the DST tools can be worked in H2S & CO2 above 175 F and full H2S, also with the skilled and experienced engineers, we can design the drill stem testing tools as per customer's well condition. Moreover, we supply the training in our factory and operation instruction at the well site. The DST tools are exported to USA, Colombia, India, Pakistan, Iran, Brazil etc. and enjoy the good reputation from the customers.
