An Integrated Approach to Evaluate the Further Development of the Changbei Unconventional Tight Gas Reservoirs

Du, Kuifu; Schaeftlein, Susanne; Mahiya, Glenn; Thum, Matthias; Marden, Roy; Taha, Mohamed; Yang, Yatao; Hong, Hong

doi:10.2523/16770-abstract

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Sweet Spot Types and Origins1

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2014

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“…This is due to the high net to gross section caused by a braided (Du et al, 2013). Example 1 -simple sweet spot, Ordos Basin, China The Lower Palaeozoic of the Ordos Basin in China, a widespread basin centre gas system exists (figure 2).…”

Section: Sweet Spot Types and Originsmentioning

confidence: 99%

Sweet Spots: What Are They, Where Are They, How Are They Created and Are They Important Anyway?

Tennant

Giles

2014

Day 2 Wed, February 26, 2014

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The term sweet spot means different things to different people, for some it might be the economically attractive part of the play for others the cheapest part to access, while others consider that it is represented by a unique property of the play. Here we define a sweet spot as that portion of the play that has top quartile EUR (Estimated Ultimate Recovery). Such sweet spots are not random but tend to occupy only a small area of the total play. Sweet spots come in two categories, simple and composite. The former are typically the result of stratigraphic or structural features while the later are commonly the result of a combination of different geological factors. For composite sweet spots the recipe that works in one play may be different from that which works in another. The key to capturing the value in a new unconventional play is to capture the sweet spot.

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Section: Sweet Spot Types and Originsmentioning

confidence: 99%