In the 1980s, large horizontal directional drilling rigs provided a much-needed alternative method for large-diameter pipeline crossing construction;
In the 1990s, due to the prosperity of the telecommunications industry, small drilling rigs developed rapidly;
Entering the 21st century, with the sluggish telecommunications market and the energy industry entering another trough;
In the past few years, due to the energy boom, the market share of large drilling rigs has increased and moved to medium-sized drilling rigs; horizontal directional drilling technology is no longer the second option for underground pipeline construction, and has become the main option under appropriate environmental conditions ；
The shortage of skilled workers is a common phenomenon, the influx of a large number of novices (low-price bidding, lack of experience), and pipeline accidents have become major obstacles to development; in general, the horizontal directional drilling market is in a stable and healthy development stage.
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