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PVT and Flow course - Rate Equation (Darcy) Intro

Rate Equation (Darcy) Intro (20160308 Part 1) We are going to start by talking about Darcy's law. We're going to look at both for for liquid and gas. We'll use Darcy's law to derive what I'm going to call rate equations. Darcy's law gives you the velocity of a flow of fluid in a rock, we don't. . . more

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Gaslift in simple words

Think about it as a force balance equation. Your well is at certain depth. Your reservoir has a certain pressure. Your produced fluid (oil, water, gas) has a certain density, often described as a fluid gradient using psi/ft of depth. If your reservoir pressure is greater than the pressure of the. . . more

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PVT and Flow course - Black-Oil PVT

Black-Oil PVT (20160301 Part 1) Traditional black oil pvt is kind of what we talked about before, where you take the different Liberation tests data together with the multi-state separator test data, you could also include the constant composition expansion data above the bubble point to kind of. . . more

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Collaborative articles on LinkedIn

Collaborative articles are a new way to tap in to the collective knowledge of the LinkedIn community so averyone can learn from experts across professional topics. Collaborative articles are knowledge topics published by LinkedIn with insights and perspectives added by the LinkedIn community.. . . more

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PVT and Flow course - Lab PVT Tests CVD

Lab PVT Tests CVD (20160225 Part 1) The Constant Volume Depletion test. This test is mainly conducted on gas condensates, that's reservoir fluids with a dew point. And it can in a few cases be used for what we'll call very volatile or sometimes we refer to it as near critical oils - oils with. . . more

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PVT and Flow course - Lab PVT Tests DLE

Lab PVT Tests DLE The differential liberation experiment is conducted only for oils. It's the same process if you will as the SEP test BUT the temperature at each stage remains equal to the reservoir temperature. The whole experiment is going on at reservoir temperature. The number of stages. . . more

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PVT and Flow course - LAB PVT Tests Multistage SEP

A multi-stage separator test. Typically it's two to four stages, most common maybe in the old days was two stages. Reasons: They are really trying to find out what pressure and particularly temperature of the first stage gave the most stock tank oil. Basically you're taking a reservoir fluid. . . more

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PVT and Flow course - Lab PVT Tests CCE

The constant composition or constant mass expansion test. 1. CCE for oils, and in particular oils that a little bit lower gas flow ratio they're not so compressible, we could call it slightly compressible oils. If you took the the reservoir oil to the surface and flashed it down to stock tank. . . more

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PVT and Flow course - OBM Decontamination

OBM Decontamination Explained The talk about the oil-based mud contamination. When drilling with oil-based mud (OBM) the collected fluid samples are often contaminated by hydrocarbons originating from the oil-based mud. To obtain a proper measure of the in situ reservoir fluid the sample. . . more

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PVT and Flow course - PVT Lab Tests

PVT Lab Tests (20160216 Part 1) There are three fundamental things that are done in the laboratory: quality control or a check on the samples that were collected (the main concern if there's leakage from the samples that have been sent from the field to the laboratory). compositional analysis -. . . more

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PVT and Flow course - Sampling

There are three types of sampling methods that we're going to talk about: Open Hole Bottomhole Samples - Formation Tester (MDT|RCI|...) Surface Separator Samples Cased Hole Bottomhole Samples Sampling MDT Intro Openhole formation tester. The first version of this was called the repeat. . . more

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PVT and Flow course - Surface Separation Processing

Surface Separation Processing (Part 1 of 2) A lecture on surface separation. Information from chapter 6 of "Phase Behavior" SPE Monograph (Whitson and Brule). PDF of notes available here:. . . more

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PVT and Flow course - Flash Calculations

Flash Calculations (Part 1 of 2) A lecture over Flash Calculations and their applications to equations of state. Information from chapter 4 of "Phase Behavior" SPE Monograph (Whitson and Brule) PDF of notes available here:. . . more

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Sand Control, Pumping and Design - webinar

The webinar was presented by Amro Hassan, who spent 13 years with Haliburton as an Associate Technical Professional in hydraulic fracturing, acid stimulation, sand control, water/gas shut-in and coil tubing services. UCS (Uniaxial Compressive Strength) The first thing we need to look at is the. . . more

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Petroleum - Modern history of oil on a Map

Let's retrace on an animated map a summary of the modern history of petroleum. <html> tags cannot be used outside of normal pages.. . . more

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PVT and Flow course - K Values

K Values - Part 1 Phase equilibrium We are talking about having a some volume at some point in the system: reservoir and the production pipe going to the surface or at the surface gathering pipe lines maybe, at the separator, basically at some point in the system having a known pressure and. . . more

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PVT and Flow course - Multi-Component Phase Diagrams

Multi-Component Phase Diagrams - Part 1 10 - 20 components is a very simple gas, very boring kind of gas, but much more often in the great majority of reservoir fluids will contain hundreds if not thousands of different compounds hydrocarbon compounds. The calculations of flow through reservoir,. . . more

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PVT and Flow course - Two-Component Phase Behavior

Now we're going to look at two components together and see how things change in regard to the the mapping of the pressure-temperature or space where you have two phases. So, here we have a pressure temperature diagram again and on this diagram there is the vapor pressure curve of methane and the. . . more

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PVT and Flow course - Single Component Vapor Pressure.

Pressure - Temperature diagram is a map of the pressure temperature space where you'll find one phase, we might be calling it an oil (liquid) or a gas (vapor) and the PT space where two phases or both oil and gas coexist. Pure Component Phase Diagram The line separating the liquid and gas. . . more

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Industry Stories - on a smart PVT guy

In the USA in some states define gas reservoir and oil reservoir based on GOR. If GOR is greater than a certain value they call it a gas reservoir and if it's less than that they call it an oil reservoir. The consequences it has it says that if we call it a gas reservoir you get one well in that. . . more

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PVT and Flow course - Gas or Oil Reservoir?

Whitson Academy is probably one of the most useful YouTube channels for petroleum engineers. The 2016 PVT and Flow Course is a great series of lectures. And here I'll summarize the main ideas from the videos. Gas or Oil Reservoir? Part 1 Sometimes it is really hard to tell if it is a gas or an. . . more

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Troll Field History

Interesting, but Troll Field, one of the largest oil fields on the Norwegian continental shelf (in 2002 oil production was more than 400,000 barrels per day), was not considered an oil field at all when it was discovered. When Shell discovered the field, they knew there was oil there, but they. . . more

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Corey function

Corey functions are a type of relative permeability model used in multiphase flow in porous media. The Corey correlation is a power law in saturation and assumes the wetting and non-wetting phase relative permeabilities to be independent of the saturations of the other phases. The Corey. . . more

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How to use Arps Decline Curve Analysis on Petrofaq Tools

Tools:ArpsDeclineCurveAnalysis allows you to: Analyze the decline curve using the Arps method. Find the coefficients for exponential, harmonic and hyperbolic declines Predict the production rate How to use Paste the production into Production per timestep section. The timesteps will be generated. . . more

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Decline Curve Analysis (DCA) with Python

Hello everyone! In this tutorial, we're going to write a simple Python script to analyze decline curves for oil and gas wells using the Arps method. Here is the DCA theory. You can find the implementation of the script in Petrofaq Tools: Tools:ArpsDeclineCurveAnalysis First - let's add the. . . more

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