Calculation Method for Inflow Performance Relationship in Sucker Rod Pump Wells Based on Real-Time Monitoring Dynamometer Card

Table 1

Calculation results.

Number	Dynamometer card	Identification results	Bottom hole flowing pressure (MPa)			Fluid production (m^3/d)
			Measured	Calculated	Error	Measured	Calculated	Error
1		Normal	8.2	8.5	3.66%	29.1	29.6	1.72%
2		Normal	7.8	8.0	2.56%	37.6	35.3	6.12%
3		Abnormal	7.1	—	—	43.2	—	—
4		Normal	6.6	6.8	3.03%	46.5	47.3	1.72%
5		Normal	5.6	5.4	3.57%	60.1	58.9	2.00%
6		Normal	4.0	4.2	5.00%	65.8	67.1	1.98%
7		Normal	2.9	2.8	3.45%	76.1	74.8	1.71%
8		Normal	1.4	1.5	7.14%	78.7	80.4	2.16%
Average					4.06%			2.49%