1. Pitch Release Method

(1). First put the instrument into the protective tube and lock it with the upper suspension;

(2). Connect the drill pipe and lower the drill pipe to the designated position;

(3). Pitch;

(4). The mud is pressurized and pumped out of the instrument;

(5). Lift the drill pipe for well logging;

1. CASE WELL：4600 meters vertical depth,

800 meters surface cover,  

1000 meters horizontal section

Traditional drilling and horizontal well logging：Under normal circumstances, well logging takes an average of 70 hours to complete.

Disadvantages: The instrument is easy to break during the blind setting process, and it is easy to encounter obstruction during the measurement process.

Storage instrument pump-out logging:

The instrument lowering process is inside the drill pipe, and safety is guaranteed. It generally takes 36 hours to complete the well logging.