ملف:Schematic cross-section of general types of oil and gas resources and the orientations of production wells used in hydraulic fracturing.jpg

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⧼wm-license-information-description⧽
English: Shown are conceptual illustrations of types of oil and gas wells. A vertical well is producing from a conventional oil and gas deposit (right). In this case, a gray confining layer serves to “trap” oil (green) or gas (red). Also shown are wells producing from unconventional formations: a vertical coalbed methane well (second from right); a horizontal well producing from a shale formation (center); and a well producing from a tight sand formation (left). Note: Figure not to scale. Modified from USGS (2002) and Newell (2011).
⧼wm-license-information-date⧽ 2015
⧼wm-license-information-source⧽ U.S. EPA. Assessment of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources (External Review Draft). U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/047, 2015.
⧼wm-license-information-author⧽ style="background: #E4E4E4; color: black; vertical-align: middle; text-align: center; " class="unknown table-unknown"|author US Government employee
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قالب:PD-USGov-EPA

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زمن/تاريخصورة مصغرةالأبعادمستخدمتعليق
حالي ★ مراجعة معتمدة
15:24، 16 أكتوبر 2023
تصغير للنسخة بتاريخ 15:24، 16 أكتوبر 20231٬431 × 839 (151 كيلوبايت)Pastakhov (نقاش | مساهمات)Upload https://upload.wikimedia.org/wikipedia/commons/5/5d/Schematic_cross-section_of_general_types_of_oil_and_gas_resources_and_the_orientations_of_production_wells_used_in_hydraulic_fracturing.jpg

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