Borehole stress tests, 424–624 m (measured)

Measured surface pressure and flow from six hydraulic-fracturing stress tests, run blind through the in-app ISIP pick and compared with the published minimum horizontal stress.

Aggregate metrics

Metric	n	MAE	RMSE	MAPE	Bias	P10/P50/P90 rel	Grade
shPsi [psi]	6	206.855	228.049	10.0%	206.855	4.7 / 9.3 / 16.0%	A

Per-case observed vs modeled

Case	Metric	Observed	Modeled	Residual	Rel err
424.5m	shPsi [psi]	1608.471	1642.267	33.795	2.1%
460m	shPsi [psi]	1849.235	2103.826	254.591	13.8%
500m	shPsi [psi]	2448.241	2631.455	183.213	7.5%
516m	shPsi [psi]	2192.975	2351.376	158.401	7.2%
617.5m	shPsi [psi]	1576.563	1863.651	287.088	18.2%
624m	shPsi [psi]	2928.317	3252.356	324.039	11.1%

Benchmark inputs (per case)

Case	Input	Value
424.5m	depthM	424.5
424.5m	publishedBreakdownPsi	2,747.02
424.5m	porePressurePsi	609.16
460m	depthM	460
460m	publishedBreakdownPsi	2,739.768
460m	porePressurePsi	659.923
500m	depthM	500
500m	publishedBreakdownPsi	3,079.157
500m	porePressurePsi	717.938
516m	depthM	516
516m	publishedBreakdownPsi	2,664.348
516m	porePressurePsi	741.144
617.5m	depthM	617.5
617.5m	publishedBreakdownPsi	2,246.639
617.5m	porePressurePsi	887.633
624m	depthM	624
624m	publishedBreakdownPsi	3,659.309
624m	porePressurePsi	897.785

Scoring breakdown

Grade bands (worst-metric rollup)

A · MAPE ≤ 10%

B · MAPE ≤ 20%

C · MAPE ≤ 35%

D · MAPE > 35%

Metric	MAPE	Grade	Drives rollup?
shPsi	10.0%	A	yes (worst)

Dataset rollup grade:

— the worst per-metric grade sets the card chip.

Citations

Sun, D., Yang, Y., Wu, B., Li, A., Zhang, C., Zhang, H., Sun, W., Li, R., Xu, Q., & Chen, Q. (2026). Downhole Flow Insights into Hydraulic Fracturing In-situ Stress Measurement [Dataset]. Zenodo.

DOI / ref: 10.5281/zenodo.21062834

Zenodo open dataset release (cite as above).

Compiled: 2026-10-01