Version History

2.0.0

• Breaking: Minimum dependency versions raised

  • Require numpy >= 2.1 (was >= 1.21.1)

  • Require scipy >= 1.13 (was >= 1.7.1)

  • Require Python >= 3.10 (was >= 3.7)

  • ParamDesc.naive_gen type changed from RandomState to Generator

• Deprecation fixes

  • Replace np.bool_ with bool in dtype specification

  • Migrate numpy.random.RandomState to numpy.random.Generator

1.3.0

• Performance

  • Vectorize _integrate_with using cumulative_trapezoid on a log-spaced grid — eliminates per-interval Python loop (~3x faster, comparable accuracy)

  • Vectorize bourdet() using searchsorted — eliminates per-point Python helper calls

• Bug Fix

  • Fix bourdet() producing NaN at right-edge points when smoothing window exceeds array boundary

  • Fix bourdet() incorrect backward-difference at right edge (_get_R_der selected point i itself, causing division by zero)

• Numerical stability

  • Replace np.log(1 + x) with np.log1p(x) in _qcheck and _Ncheck for small decline rates

  • Replace np.log(1 + D*b) with log1p(D*b) in secant_from_nominal

  • Use np.expm1 for t^(1-m) - 1 in Duong model for precision near t=1

1.2.0

• Build system

  • Migrate from setup.py / setup.cfg to pyproject.toml

  • Replace flake8 with ruff

  • Version now single-sourced in pyproject.toml, resolved at runtime via importlib.metadata

• Bug Fix

  • Fix overflow in MultisegmentHyperbolic._Ncheck when decline rate is near-zero (subnormal), causing cum(0) to return NaN

• Other changes

  • Fix mypy strict-mode type errors in bourdet.py and base.py

  • Update CI and test scripts to use ruff

1.1.0

• Bug Fix

  • Fix bug in sign in MultisegmentHyperbolic.secant_from_nominal

• Other changes

  • Add mpmath to handle precision requires of THM transient functions (only required to use the functions)

  • Adjust default degree of THM transient function quadrature integration from 50 to 10 (scipy default is 5)

  • Update package versions for docs and builds

  • Address various floating point errors, suppress numpy warnings for those which are mostly unavoidable

  • Add test/doc_exapmles.py and update figures (not sure what happened to the old file)

  • Adjust range of values in tests to avoid numerical errors in numpy and scipy functions… these were near-epsilon impractical values anyway

1.0.8

• New functions

  • Added WaterPhase.wgr method

• Other changes

  • Adjust yield model rate function to return consistent units if primary phase is oil or gas

  • Update to numpy v1.20 typing

1.0.7

• Allow disabling of parameter checks by passing an interable of booleans, each indicating a check

  to each model parameter.

• Explicitly handle floating point overflow errors rather than relying on numpy.

1.0.6

• New functions

  • Added WaterPhase class

  • Added WaterPhase.wor method

  • Added PrimaryPhase.add_water method

• Other changes

  • A yield model may inherit both SecondaryPhase and WaterPhase, with the respective methods removed upon attachment to a PrimaryPhase.

1.0.5

• New functions

  • Bourdet algorithm

• Other changes

  • Update docstrings

  • Add bourdet data derivatives to detailed use examples

1.0.4

• Fix typos in docs

1.0.3

• Add documentation

• Genericize numerical integration

• Various refactoring

0.0.1 - 1.0.2

• Internal releases