Mobil

About: Mobil is a based out in . It is known for research contribution in the topics: Catalysis & Zeolite. The organization has 7085 authors who have published 10642 publications receiving 237497 citations. The organization is also known as: Socony-Vacuum Oil Company & Standard Oil Company of New York.

Hydraulic fracturing method employing special sand control technique

Abstract: A subsurface oil or gas reservoir is hydraulically fractured by injecting a fracturing fluid through perforations in the casing of a well penetrating into such subsurface reservoir. The fracturing fluid contains a clay stabilizing agent for stabilizing clay particles or fines along the face of the resulting formation fracture. A proppant comprising a gravel packing sand is injected into the fracture. Oil or gas is then produced from the reservoir through the fracture into the well.

Dealumination of zeolite {beta} via dicarboxylic acid treatment

Abstract: It is demonstrated that zeolite {beta} and zeolite {beta} containing catalysts can be dealuminated to very low acidity levels using a novel oxalic acid treatment without reducing zeolite integrity. The effect of the oxalic acid treatment has been studied over a wide range of treatment conditions for both silica-bound and unbound zeolite {beta} catalysts. Greater than 90% dealumination is observed with a concomitant reduction in n-hexane-cracking activity as measured by the alpha ({alpha}) test. Removal of framework aluminum occurs via a two-step hyrolysis/chelation mechanism, with the oxalic acid acting both as an acid and as a chelating agent. Framework aluminum removal is accompanied by the formation of internal silanol groups. Water soluble aluminum oxalates are present in the extracted solutions. Silanol groups are annealed with extended oxalic acid treatment. Oxalic acid treatment results in a unique contraction of the zeolite {beta} lattice structure not observed for mineral acid treated or steamed zeolite {beta} catalysts. 15 refs., 11 figs., 5 tabs.

Potential risks when using seismic attributes as predictors of reservoir properties

Abstract: The advance of our ability to generate seismic attributes and the growing emphasis on production geophysics has led to the widespread use of seismic attributes as predictors of reservoir properties. In many cases, we can show — using seismic modeling or rock physics — a physically justifiable relationship between a seismic attribute and the reservoir property of interest. When this is true, we are able to greatly reduce the uncertainty of interwell predictions of reservoir properties.

Analogous tectonic evolution of the Ordovician foredeeps, southern and central Appalachians

Abstract: New stratigraphic data suggest that the diachronous evolution of the Ordovician foredeeps in the southern and central Appalachians was remarkably similar. Stratigraphic features that characterize the Middle Ordovician Sevier basin in Tennessee and the Middle and Late Ordovician Martinsbuirg basin in Pennsylvania are in identical ascending order: (1) disconformity on the Knox Group–Beekmantown Group, (2) shelf carbonates, (3) slope deposits, (4) submarine fan turbidites, and (5) contourites and muddy turbidites. We propose that diachronous attempted subduction of the North American craton beneath southeastern microplates and/or volcanic arcs resulted in uplift and erosion of the western shelf followed by its rapid subsidence. Basinward migration of eastern and northeastern terrigenous source areas and associated submarine fan turbidites resulted from continued convergence and filled the basins. Finally, tectonic stabilization and lowering of the source area is recorded by contourites and muddy turbidites. The evolutionary model proposed for the Sevier and Martinsburg basins closely resembles present-day tectonics of the Timor foredeep and the adjoining Sahul shelf north of Australia. Similar comparisons have also been made for Ordovician basins in the northern Appalachians. Analogous tectonic mechanisms, therefore, appear to have operated diachronously along the eastern margin of North America from Tennessee to New England and possibly to Newfoundland during Ordovician time.