The thread safety joint is a safety device during well completion. In the event of an emergency or as required by the construction design, the top and bottom pa…

Running the wire entry guide into the bottom of the tubing string to help the wireline tools entry guide re-enter the tubing. There are various models and spec…

The hydraulic open plug can also be called setting ball seat, which is connected to the bottom of the packer and used to set the hydraulic packer. Dropping a ba…

The flow coupling is used in combination with subsurface safety valves, sliding sleeves, and landing nipple on tubing strings of the production well. The flow c…

The blast joint is used in the perforated section of the casing and in the tubing string of artesian well to prevent the tubing from being affected by fluid ero…

When a long seal assembly is run to accommodate the larger tubing movement, the seal bore extension can be used to lengthen the sealing section. The ID of the s…

The mill-out extension can be directly connected below the packer. When there is a seal bore extension under the packer, the mill-out extension can be run below…

The SSP tubing-retrievable safety valve (TRSV) is designed to shut in a well at a position below the surface. The safety valve is normally closed without extern…

The SNE-S tubing-retrievable safety valve (TRSV) is designed to prevent fluid flow to the surface uncontrollably and will close automatically when a well is fai…