DPL Tech

A New Feature that makes Sequential Drilling Decisions Easy

6 Well Sequential Drilling Problem

A common and challenging decision problem in the oil & gas industry is to decide how to explore an oil field. Typically there is a cluster of prospects, giving rise to a highly dependent set of uncertainties, according to their proximity and the geology of the area. For example, if you drill a well at one site and strike oil, it's more likely that a nearby prospect will also have oil. If you drill a few "dry holes", you'll probably give up on the field rather than throw good money at potentially poor prospects. This makes intuitive sense, but until recently it was tough to model in a decision tree.

A Gentle Introduction to DPL Constraint Functions

In most DPL models, decisions are made to maximize or minimize some quantity, and they can and should be left unconstrained. You can never have too much NPV, for example. However, some decision problems require making tradeoffs among several decisions where not all possible decision policies (i.e., combinations of decision alternatives) are feasible. For example, your company may only be able to launch one or two new products a year.

Q&A about 32- and 64-bit DPL/Excel/Windows

While we normally try to avoid dry technical topics in this blog, the time has come to say a few words about 32- and 64-bit applications, in the hopes of addressing any confusion you may have registered. In this post, I'll answer some key FAQ's and provide a few pointers to other sources of useful information.

Q. Do I really need to know about this?

Controlling DPL from Windows PowerShell

Are you using PowerShell yet?

PowerShell (aka POSH) is Microsoft's latest scripting environment, consisting of a command line shell and an associated script language. Power users appreciate scripts because they're a quick way to automate repetitive tasks that don't warrant writing a whole new program. While PowerShell is broadly used among IT professionals, many Windows power users who could benefit from it don't know it exists.

Historically, Windows has always been a shell-poor platform.

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