Workers should be trained on the on-site procedure and field work operation.
In the on-site procedure, the air injection connector had been put 400 m under the hole.
Details of the technology have been illustrated in this work, which plays an important role in the on-site procedure engineering design.
In the on-site procedure, the air injection connector system was put down into the well to realize the underbalanced drilling.
After the successful trial tests of the air injection connectors and auxiliary tools, the on-site procedure was conducted on the coalbed methane drilling site in Qinshui County, Shanxi Province, China.
Quality control plays an important role in the tool design, manufacturing process, experiment, project design, and the on-site procedure, all of which were illustrated in the technology of the underbalanced drilling air injection connector system.
Moreover, prefabrication offers more quality and greater reliability since controls are more effective under off-site conditions and there is generally a higher level of precision than is the case with on-site procedures (National Research Council, 2009).
This study provides an easy applicable on-site photography procedure.
