Petroleum Engineering

[...] – Annular Volumes using Drill Pipe, Drill Collar, and Hole Diameter How to calculate Annular volume in barrels - The following formula will calculate Annular Volume in bbls: Annular Volume bbls [...]

[...] “Bottoms Up” or Bit to Surface Strokes is listed below: “Bottoms Up” = Annular Volume in bbls / Pump Output in bbls-stk How do we find this? Step 1 is to find Annular Volume - [...]

[...] - a) Drill String Volume bbls – 188.59 b) Annular Volume bbls – 1960.99 c) Pump Output bbl/stk – 0.148 @ 95% efficiency Solve - Total [...]

[...] Calculate – Drill Pipe Volume, Drill Collar Volume, and Total Drill String Volume Let’s calculate the drill [...]

[...] for a Length of Dry Pipe. 1 – Find the hydrostatic pressure it takes to drop inside the drill pipe. HP psi = Mud Weight ppg x 0.052 x length of DRY pipe in feet 2 – Find the difference in [...]

[...] steps in calculating slug weight ppg for a length of dry pipe! Step 1 - Find slug length inside drill pipe in feet: Slug length in feet = slug volume bbls / drill pipe capacity bbl/ft Step 2 - Find [...]

[...] Calculate – Annular Volumes using Drill Pipe, Drill Collar, and Hole Diameter How to calculate Annular volume in barrels - The following [...]

[...] need to add the drill pipe volume in bbls + drill collar in bbls. Total Drill String Volume = 177.88 bbls + 10.71 = 188.59 bbls Surface to bit strokes = [...]

[...] Calculate – Drill Pipe Volume, Drill Collar Volume, and Total Drill String Volume Let’s calculate the drill string volume in barrels [...]

[...] Calculate – Annular Volumes using Drill Pipe, Drill Collar, and Hole Diameter How to calculate Annular volume in barrels - The following formula will [...]

[...] Calculate – Drill Pipe Volume, Drill Collar Volume, and Total Drill String Volume Let’s calculate the drill string [...]

[...] .4) x 900 = 10.71 bbls C. To find the total drill string volume we need to add the drill pipe volume in bbls + drill collar in bbls. Total Drill String Volume = 177.88 bbls + 10.71 = 188.59 [...]

[...] – 12.25 in diameter Casing Specs – 13.625 in, ID = 12.615 in. Set depth = 4650 ft Pump Output = 0.148 @ 95% 1. Annular Volume for Drill Collar (open hole) – (12.25^2 – 8^2) / [...]

[...] bbls / PO in bbls per stroke (Where DSV is “drill string volume” and PO is “pump output”. If the DSV or PO isn’t already a given, then we must also calculate these. [...]

[...] / PO barrels per stroke NOTE that – DSV = Drill String Volume AV = Annular Volume PO = Pump Output Given the above information, let’s solve an example with the following data - a) Drill [...]

[...] the formula to calculate PO for a Triplex Pump, let’s do an example given the following information - - PO at 100% efficiency - 6 in liner - 12 in stroke PO @ 100% = 0.000243 x (6)^2 x [...]

[...] your hole^2 Given that we know HOW to solve for MDR, let’s do an example given the following information - - Mud Weight Out, 9.6 ppg - Mud weight in, 8.8 ppg - Circulation Rate, 544 gpm - Hole [...]

[...] now can calculate Annular Volume, let’s complete an example given given the following information: - Drill Collar Specs – 6 in OD, 3.25 in ID, 900 feet in length - Drill Pipe [...]

[...] = slug length ft x drill pipe volume bbl-ft Let’s complete an example given the following information: - Desired length of dry pipe, 3 stands = 276 ft - Mud weight = 12.5 ppg - Drill [...]

[...] volume in barrels - The following formula will calculate Annular Volume in bbls: Annular Volume bbls = (Dh^2 – OD^2) / 1029.4 x Length in feet, and Dh* is the diameter of the hole [...]

[...] in bbls / Pump Output in bbls-stk How do we find this? Step 1 is to find Annular Volume - Annular Volume bbls = (Dh^2 – OD^2) / 1029.4 x Length in feet, where Dh is the hole diameter. So, and [...]

[...] an example with the following data - a) Drill String Volume bbls – 188.59 b) Annular Volume bbls – 1960.99 c) Pump Output bbl/stk – 0.148 @ 95% efficiency Solve - Total [...]

[...] in psi / change in pressure gradient psi-ft 4 – Calculate the slug volume in barrels. slug volume bbls = slug length ft x drill pipe volume bbl-ft Let’s complete an example given the [...]

[...] of dry pipe! Step 1 - Find slug length inside drill pipe in feet: Slug length in feet = slug volume bbls / drill pipe capacity bbl/ft Step 2 - Find Hydrostatic Pressure for a slug to drop in the [...]

[...] idea of how to find this, let’s complete an example given the following data: - Drill Pipe specs – 5 in OD, 3.368 ID, 8960 feet in length - Drill Collars specs – 6 in [...]

[...] information: - Drill Collar Specs – 6 in OD, 3.25 in ID, 900 feet in length - Drill Pipe Specs – 4 in OD, 4.376 ID, 9550 feet in length - Open Hole Specs – 12.25 in diameter - [...]

[...] only the DSV.) With that being said, Step 1 is to calculate Drill String Volume - - Drill Pipe specs – 6 in OD, 4.356 ID, 9650 feet in lenght - Drill Collars specs – 8 in OD, [...]

[...] following data: - Drill Pipe specs – 5 in OD, 3.368 ID, 8960 feet in length - Drill Collars specs – 6 in OD, 3 in ID, 600 feet in length Given that we already know the formula to [...]

[...] Drill String Volume - - Drill Pipe specs – 6 in OD, 4.356 ID, 9650 feet in lenght - Drill Collars specs – 8 in OD, 3.5 in ID, 900 feet in lenght A. Drill Pipe Volume in bbls = (4.356^2 / [...]