Petroleum unit converter
Twenty-one families of upstream units, converted in one place — including the awkward ones like bbl/ft, psi/ft and millidarcy.
Units & conversion
Jalali, Gregorian & Hijri date converter
One date in three calendars, for the daily drilling report that is dated in one and the contractor report that is dated in another.
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How it is calculated
- Every calendar converts through the Julian Day Number, so three calendars need three algorithms rather than six pairwise ones.
- Jalali uses the Khayyam–Borkowski leap-break table, which is exact from 1178 to 1633 AP — not the 33-year arithmetic rule, which drifts against the astronomical year.
- Hijri uses the tabular (Kuwaiti) algorithm.
- The result is round-tripped back into the source calendar; a date that does not survive that is rejected rather than silently normalised.
Where this stops being true
The Hijri result is arithmetical, and the Hijri calendar in actual use is not. Months begin on a sighting, so a printed Umm al-Qura or a national calendar will disagree with this by a day, sometimes two, and which way it disagrees is not predictable. Use it to line up a report, never to date a contract or compute a deadline.
The capability that automates this
- KC-05Automated ReportingProduces the daily, weekly and monthly reports from the data automatically, with the narrative drafted and the numbers already reconciled.
- OP-01Offline-First Field Data CaptureOperators record readings and observations on a phone that works with no signal, and everything syncs when the device gets back to coverage.
Related tools
API gravity, density & temperature correction
°API, specific gravity and density at 15 °C from a density observed at any temperature, with the volume correction factor that gets you there.
Mud weight, gradient & hydrostatic pressure
Mud weight in any unit to a gradient and a hydrostatic pressure at any TVD — and the same calculation run backwards to an equivalent mud weight.
Remote site bandwidth
Tags, report rate and protocol turned into the kilobits per second a link has to carry — including the backfill surge after the link comes back.