A New Approach for Accurate Prediction of Liquid Loading of Directional Gas Wells in Transition Flow or Turbulent Flow

Table 4

Field data in western block and liquid loading predicting results.

Well number	Wellhead pressure (MPa)	Tubing diameter (in)	Gas rate (10^4 m^3/d)	Liquid rate (m^3/d)	Deviation angle (°)	Current gas velocity (m/s)	Reynolds number (10^5)	Belfroid model		New model		Test status
								Critical gas velocity (m/s)	Predicting status	Critical gas velocity (m/s)	Predicting status
1	12.6	2.44	2.92	0.25	24	3.46	2.3	3.82	Loaded	4.23	Loaded	Loaded
2	8.9	2.44	2.36	0.2	30	2.93	3.5	3.27	Loaded	3.86	Loaded	Loaded
3	10.3	2.44	3	0.8	30	4.13	3.8	3.65	Unloaded	3.93	Unloaded	Loaded
4	15.3	2.44	3.44	0.35	50	5.44	2.7	4.79	Unloaded	5.21	Unloaded	Loaded
5	12.1	2.44	3.39	0.38	25	3.48	2.3	4.13	Loaded	4.27	Loaded	Loaded
6	4.6	2.44	1.48	0.65	45	1.54	2.6	2.49	Unloaded	2.87	Unloaded	Unloaded
7	21.9	2.44	4.51	1.25	26	3.94	3.1	4.88	Loaded	5.84	Loaded	Loaded
8	16.3	2.44	4.78	0.8	25	4.86	3.3	4.27	Unloaded	5.13	Loaded	Loaded
9	13.3	2.44	2.46	1.35	30	4.51	4.1	4.05	Unloaded	5.06	Loaded	Loaded
10	15.6	2.44	4.69	0.7	40	3.12	5.3	4.70	Loaded	5.17	Loaded	Loaded
11	23.2	2.44	4.57	1.2	50	6.25	6.5	5.71	Unloaded	6.90	Loaded	Loaded
12	2.5	2.44	2.6	0.4	30	5.22	7.7	3.92	Unloaded	4.53	Unloaded	Unloaded
13	10.1	2.44	2.18	1.4	28	4.63	6.3	3.84	Unloaded	4.42	Unloaded	Unloaded
14	19.4	2.44	5	2.3	45	4.97	3.2	4.26	Unloaded	5.27	Loaded	Loaded
15	17.5	2.44	4.01	1.25	32	2.63	2.7	3.98	Loaded	4.61	Loaded	Loaded
16	18	2.44	0.9	4.5	25	3.07	3.4	3.72	Unloaded	4.47	Unloaded	Unloaded