How are shale gas wells produced in the Fuling demonstration area?

Through analysis, it has been clarified that the production of shale gas wells in the Fuling Demonstration Area includes three stages: stable production with declining pressure, declining production with constant pressure, and production with increasing pressure (Fig. 2).

What tools did Fuling shale gas field workers use?

Furthermore, Fuling Shale Gas Field workers also developed high-efficiency drill bit sequences, such as large-size PDC, directional PDC, hybrid drill bits, and shale horizontal drill bits, as well as key tools such as the hydraulic oscillator and torsional impactor.

How long does it take to move a drilling rig?

As a result, the inter-well relocation of the drilling rig was shortened from 72 h to 4 h. A modular, highly automated, step-by-step, track-type integral movement drilling rig suitable for operation in a mountainous environment was developed.

What is 1411 drilling speed-up template & wellbore trajectory fine control technology?

The 1411 drilling speed-up template and wellbore trajectory fine control technology were established, centering on high clear water drilling in the upper part, “directional PDC/hybrid bit + MWD + even wall thickness screw,” and “low-cost domestic oil-based drilling fluid + domestic LWD + oil-resistant long-life screw” (Table 1).

What is a self-propelled drilling rig?

The self-propelled drilling rig with all-around integral movement was innovated, with a maximum movement weight of 1000 t and an inter-well positioning accuracy of less than 10 mm. As a result, the inter-well relocation of the drilling rig was shortened from 72 h to 4 h.