PTP: from a paper to a checked method

Open a paper, here Papatzacos et al., Cone Breakthrough Time for Horizontal Wells, and choose Make PTP from the viewer’s menu.

Each formula sits beside the crop cut from the PDF. A second reader flags what differs, and you confirm it.

The method is written as Python and runs in the sandbox. The code is yours to read, copy or download.

The check reruns the paper’s own worked example. The PTP is saved in your Notebook, in its own folder.

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Cone Breakthrough Time for Horizontal Wells

Notebook / PTP

SPE-19822-PAFrom one paper in your library

Method ·

Eq 1p. 2

q_D = 1441.1271 × 10⁻³ μ_oq_oB_o2πL√k_Vk_H h(ρ_o − ρ_g)

q_D = 1441.1271 × 10⁻³ μ_oq_oB_o2πL√k_Vk_H h(ρ_o − ρ_o)

▲ Model changed the equationYou confirmed this. It no longer blocks the status.

Details ▾Parser read (what the code uses)h ( \rho _ { o } - \rho _ { o } ) Model usedh (\rho_o - \rho_g) Second reader sawh(\rho_o - \rho_g)

Eq 2

Notebook / PTP

SPE-19822-PAFrom one paper in your library

fieldmetricReset to paper valuesRe-run

Code · method.pyruns in the sandbox HideCopyDownload .py

Notebook / PTP SPE-19822-PA

CheckReproduces the paper's worked example

Output	Paper says	Sandbox computed	Difference
t_BT	2.89 years	2.877	−0.4 % ✓

Results · the paper's example ·

q_D1.171

t_BTD0.1581

t_BT2.877 years

Every number here comes from the sandbox run. Nothing is typed by the model.

Inputs

NotebookAll Pages PTPSPE-19822-PA