Study on Downhole Throttling Characteristics of High Water Content Gas

Table 1

Structural parameters of well Daji 14-1 and Daji 4-5.

	Daji 14-1 well	Daji 4-5 well	Gas water ratio (m^3/m^3)	800
Artificial bottom hole (m)	2448.3	2472.3	Tubing wall thickness (mm)	6.45
Outer diameter of surface casing (mm)	244.5	244.5	Formation thermal conductivity (W/(m·K))	1.72
Wall thickness of surface casing (mm)	8.94	8.94	Thermal conductivity of oil pipe (W/(m·K))	50.5
Outer diameter of gas reservoir casing (mm)	139.7	139.7	Thermal conductivity of casing (W/(m·K))	50.5
Gas reservoir casing wall thickness (mm)	9.17	9.17	Thermal conductivity of cement sheath (W/(m·K))	0.95
Gas production (m^3/d)	30715	51220	Annular thermal convection coefficient (W/(m^2·K))	0.86
Outer diameter of oil pipe (mm)	88.9	88.9	Fluid convection heat transfer coefficient (W/(m^2·K))	0.82