Tools

• Petroleum unit converter

  Twenty-one families of upstream units, converted in one place — including the awkward ones like bbl/ft, psi/ft and millidarcy.

• 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.

• 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.

• Well volumes & circulation time

  Annular and string volumes section by section, then the strokes and the minutes to bottoms-up and to a full circulation.

• ECD & bottom-hole circulating pressure

  Annular pressure loss, flow regime and the equivalent circulating density the formation actually sees while the pumps are running.

• Bit hydraulics & nozzle selection

  Total flow area, nozzle pressure drop, HSI and jet impact force — plus the nozzle size that would put the optimum share of pump pressure at the bit.

• Directional survey — minimum curvature

  Paste MD, inclination and azimuth and get TVD, northings, eastings, dogleg severity, vertical section and closure — with the well path drawn.

• Kill sheet — driller's method

  Kill mud weight, initial and final circulating pressure and the step-down schedule, for rehearsal and for checking a sheet that has already been worked.

  Training aid

• MAASP & fracture gradient from LOT / FIT

  Turn a leak-off or integrity test into a fracture gradient, a maximum allowable mud weight and the surface pressure the shoe will take.

• Weighting material for a mud weight change

  Sacks of barite to take a system from one mud weight to another, the volume it adds, and how much mud to discard if the pits cannot grow.

• Cement slurry & displacement volumes

  Slurry volume, sack count, mix water and displacement volume for a primary cement job, from the geometry and the intended top of cement.

• Torque & drag — soft string

  Pick-up, slack-off and rotating hookload and surface torque from a survey, a string tally and a friction factor.

• Decline curve analysis

  Paste a rate history and get an Arps fit — qi, Di and b — with the time to the economic limit, remaining reserves and an EUR.

• IPR curve

  One well test turned into an inflow performance curve, a productivity index and an absolute open flow.

• Gas-lift injection optimisation

  Fit a gas-lift performance curve through your injection tests and find both the technical peak and the point where the next MSCF stops paying for itself.

• Static gradient & bottom-hole pressure

  Bottom-hole pressure from a wellhead reading — a liquid gradient for oil and water, and a stepwise gas-column integration for gas.

• Build-up test — permeability & skin

  A Horner plot from your shut-in pressures, with the semilog slope turned into permeability, skin, p* and flow efficiency.

• ESP total dynamic head & stage count

  Total dynamic head from net lift, tubing friction and discharge pressure, then the stages and shaft power that head implies.

• Rates, water cut, GOR & uptime

  Gross to net, cut to WOR, gas rate to GOR, and on-stream rates to calendar-day rates — the arithmetic every production report repeats and half of them get wrong.

• PVT from correlations

  Bubble point, solution GOR, Bo, oil and gas viscosity, z-factor and Bg from gravity, temperature and pressure — the module the other reservoir tools call.

• Volumetric OOIP / OGIP with Monte Carlo

  The volumetric equation run tens of thousands of times over triangular distributions, returning P90, P50 and P10 instead of one number that pretends to be certain.

• Gas material balance — P/z

  Paste reservoir pressure against cumulative production and read gas in place off the intercept, with z computed at every point rather than assumed constant.

• EOR method screening

  Ten EOR methods checked against your reservoir and fluid properties, each one told to say exactly which criterion rules it out.

• Minimum miscibility pressure

  CO₂ and lean-gas MMP from three independent correlations, corrected for injectant impurities, with the spread between them shown rather than averaged away.

• Bearing defect frequencies

  BPFO, BPFI, BSF and FTF from bearing geometry and shaft speed, with the harmonics and the minimum spectrum Fmax you need to see them.

• Corrosion rate & remaining life

  Two thickness readings turned into a short-term and a long-term rate, a remaining life and the next inspection date API 510 and 570 would set.

• B31G remaining strength of a corroded pipe

  A metal-loss defect assessed by both original and modified B31G, giving the failure pressure, the safe operating pressure and the longest defect your MAOP can carry.

• Pipe wall thickness & MAOP

  Required wall thickness and maximum allowable operating pressure under B31.3, B31.4 or B31.8, with the class location, joint and temperature factors applied.

• Pipeline pressure drop

  Single-phase liquid by Darcy–Weisbach with a real Colebrook friction factor, and gas by Weymouth with both Panhandle equations alongside it.

• Relief valve orifice sizing (API 520)

  Required orifice area for vapour or liquid relief, mapped onto the nearest API 526 standard orifice.

• Two- and three-phase separator sizing

  Vessel diameter and length from Souders–Brown gas capacity and liquid retention time, with the constraint that actually governs made visible.

• Vented methane to CO₂ equivalent

  A vented or fugitive gas volume converted to tonnes of methane and tonnes of CO₂ equivalent on both the 20- and 100-year horizons, with an OGMP 2.0 reporting level attached.

• Flaring intensity & combustion emissions

  Flare volume per barrel, the CO₂ from combustion and the methane that slips through unburned — with the combustion efficiency as the dial that matters.

• Mixture LEL — Le Chatelier

  The lower and upper explosive limits of a multi-component gas, and where a measured atmosphere sits against them.

• Time-series storage sizing

  Tag count, sample rate and retention turned into terabytes, plus the edge buffer you need to survive a link outage of a given length.

• Archive OCR project estimator

  Pages and scan quality turned into storage, processing hours and — the part that actually sets the schedule — the size of the human review queue.

• 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.

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