Criteria for Proper Production Decline Models and Algorithm for Decline Curve Parameter Inference

Zhou, Peng; Pan, Yuewei; Sang, Huiyan; Lee, W. John

doi:10.15530/urtec-2018-2903078

Cited by 9 publications

(2 citation statements)

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“…Their influences on production decline are mainly seen at the early stage. Therefore, the log-log diagnostic method proposed by Zhou et al [30] was used to identify the boundary-dominated flow regime rather than the linear flow regime in the present study. The log-log diagnostic approach is an effective method to avoid misinterpretation and to estimate the switching point.…”

Section: Discussionmentioning

confidence: 99%

“…Construct the production rate versus real production time curve (i.e., PT curve) and production In this section, the log-log diagnostic plots of production rate versus real production time as well as material balance time (MBT) are constructed to identify the flow regime of TMS wells. The procedure for identifying the flow regime is as follows [30].…”

Section: Flow Regime Diagnosis Methodsmentioning

confidence: 99%

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An Analytical Model for Capturing the Decline of Fracture Conductivity in the Tuscaloosa Marine Shale Trend from Production Data

2019

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Fracture conductivity decline is a concern in the Tuscaloosa Marine Shale (TMS) wells due to the high content of clay in the shale. An analytical well productivity model was developed in this study considering the pressure-dependent conductivity of hydraulic fractures. The log-log diagnostic approach was used to identify the boundary-dominated flow regime rather than the linear flow regime. Case studies of seven TMS wells indicated that the proposed model allows approximation of the field data with good accuracy. Production data analyses with the model revealed that the pressure-dependent fracture conductivity in the TMS in the Mississippi section declines following a logarithmic mode, with dimensionless coefficient χ varying between 0.116 and 0.130. The pressure-dependent decline of fracture conductivity in the transient flow period is more significant than that in the boundary-dominated flow period.

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Section: Discussionmentioning

confidence: 99%

Section: Flow Regime Diagnosis Methodsmentioning

confidence: 99%