The ST70 Coiled Tubing initially gained a foothold in the market as a cost-effective wellbore cleaning tool. The economic revenue of well workover and completion operations accounts for more than 75% of the total revenue of ST70 Coiled Tubing operations, and the application scope of ST70 Coiled Tubing in various oil and gas fields around the world continues to expand. In fact, the advantages and application value of ST70 Coiled Tubing, such as under-balanced operation with pressure, fast and efficient operation, low damage to the formation, and low cost (from the simplification of the process), are 30 years after the birth of ST70 Coiled Tubing. It was only really recognized in the 1990s. After ST70 Coiled Tubing is widely used in oil and gas field workover, drilling, well, logging and other operations, it plays an increasingly important role in oil and gas field exploration and development.

ST70 Coiled Tubing, is the main device and daily consumption pipe of ST70 Coiled Tubing equipment operation. It is wound on the ST70 Coiled Tubing roller equipment during the working process, and is connected to the ST70 Coiled Tubing downhole tool to run into the oil and gas well, and the liquid is continuously pumped to make the ST70 Coiled Tubing downhole tool work.