Sun, Aug/29/2004
A trip to Nizhnevartovsk
On May 27 a few of young Tomskneft specialists - Roman Galchenko, Yury Shishkin, Gouzel Abrarova etc decided to attend the lecture of James Crafton which is called "Why shut the well?". This is interesting topic because this kind of well investigation doesn't impact on production. Generally one should write a lot of papers or give evidences to show clearly the necessity of pressure survey. Below the abstract of the lecture is given. I contacted James for the methodology and He gave me good stuff to implement this topic in industry. If you are interested in - do contact.
Production data analysis is emerging as one of the oil and gas industry’s most powerful tools for well performance evaluation. The use of a theoretically rigorous production data analysis tool is allowing operators to find significant additional financial value in their wells with data they already have in hand. Accurate analysis of that production data can be performed very quickly, at several levels of detail, and at less cost than traditional solutions of well testing and simulation. The method makes possible the observation of time-dependent skin damage, changing transmissibility, interference, liquid loading, and drainage geometry—as well as the quantitative evaluation of effective fracture length, drainage volume, permeability thickness, skin, and recoverable reserves. Production data analysis is readily accomplished with data, already acquired in the normal course of business, although most electronic data collection systems already record with “near well-test” quality resolution. Even very low-resolution monthly data often provides reliable interpretations. By contrast, traditional shut-in well testing incurs costs that include lost production, well services fees, and (very often) formation damage.
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