...CONCLUSIONS Shale production and problems seem to occur from completion methods. Shale stability corresponds to stress levels and may be failing by plastic flow or crushing. Cement strength and bonding appears critical as indicated from the samples and well logs. All aspects...

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... sandstone shale drilling time hole size penetration hole turbodrill straight hole turbodrill flow rate upstream oil & gas drilling operation application good result technical limit drilling anadarko basin geology geologist well result obtained drill pipe selection rock type united...

.... These sands, marls and shales are lying on deeper Mesozoic carbonates, the most interesting of which, from the hydrocarbons point of view, are the dolomites of the Triassic "Dolomia Principale" formation. Up to the last decade, AGIP activity in Po Valley was essentially directed to Pliocene and/or Miocene...

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... quartzites, salt sections, and "trapped pressure shales." Dry hole costs in the basin can range from $27/foot for an 11,000' hole drilled to TD on air with no problems to as high as $150/foot for a typical 20,000 foot well which will encounter several problems, including at least one sidetrack operation...

...) gives a better idea of the formations to be penetrated. The primary target for this well was the Devonian dolomite (Hunton), which was non-commercial in the Baden test. The sediments of the Anadarko basin are mainly carbonates with mixed layers of sand and shale. However, because of the intense...

... Creek structure. Abnormally high pressure gradients are associated with the Morrow shale and sand sequence resultings in higher drilling costs. Washita Creek - Hunton dry gas production was discovered in 1966, however, a Morrow sand gas reservoir was Penetrated in 1960 in the field area. Gas from...