Calculation of Cementing ECD for Well Annuli with Narrow or Varied Radial Sizes

Table 4

Comparison of the ECD results calculated by five methods.

Model	No.	DB	LM	PVI	MR	DNS
Bingham	1	195.521	107.515	156.558	160.513	161.781
	2	160.835	155.029	226.198	232.021	233.802
	3	190.065	120.338	175.764	180.089	181.451
	4	37.172	24.576	35.175	35.808	35.797
	5	38.278	34.728	50.172	51.024	51.009
	6	37.904	27.085	39.122	39.726	39.708
	7	20.474	14.095	19.830	20.116	20.140
	8	21.309	19.649	28.016	28.378	28.379
	9	20.938	15.433	21.959	22.201	22.215
	10	10.458	7.600	10.239	10.784	10.383
	11	10.915	10.292	14.159	14.321	14.302
	12	10.710	8.199	11.220	11.321	11.317
Power-Law	1	41.455	34.277	31.842	35.154	32.229
	2	102.858	77.622	87.181	73.016	71.672
	3	97.959	122.054	137.280	114.715	112.439
	4	13.197	13.663	15.280	12.936	12.800
	5	30.024	25.280	28.395	23.866	23.486
	6	26.300	31.346	35.341	29.549	29.065
	7	8.762	9.175	10.213	8.722	8.716
	8	17.563	15.857	17.764	15.017	15.026
	9	15.070	18.334	20.634	17.332	17.312
	10	5.635	6.261	6.909	5.985	5.885
	11	10.610	9.745	9.610	9.278	9.332
	12	9.021	10.074	11.243	9.576	9.534