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.

In-situ combustion method for recovery of heavy oil utilizing oxygen and carbon dioxide as initial oxidant

Abstract: An in-situ combustion method for recovering viscous oil from a subterranean, viscous oil-containing formation comprising injecting a mixture of essentially pure oxygen and carbon dioxide into the formation to initiate an in-situ combustion operation followed by injecting essentially pure oxygen.

Production of high viscosity index lubricants

Abstract: Petroleum wax feeds having a low oil content are converted to high viscosity index lubricants by a two-step hydrocracking-hydroisomerization process in which the wax feed is initially subjected to hydrocracking under mild conditions with a conversion to lube range products of between generally 30 and 40 wt.% of the feed. The hydrocracking is carried out at a hydrogen pressure of at least 800 psig (5617 PkPaa) using an amorphous catalyst which preferentially removes the aromatic components present in the initial feed. The hydrocracked effluent is then subjected to hydroisomerization in a second step using a low acidity zeolite beta catalyst. The second stage may be operated at high pressure by cascading the first stage product into the second stage or at a lower pressure, typically from 200 to 1000 psig (1480 to 6996 PkPaa). The second stage catalyst is preferably a noble metal containing zeolite beta catalyst. The second stage is carried out at relatively low temperature, typically from 600° to 650 °F (316 to 343 °C). A final dewaxing step to target pour point may be used.

Mass mortality and its environmental and evolutionary consequences.

Abstract: The latest Mesozoic and earliest Tertiary sediments at Deep Sea Drilling Project site 524 provide an amplified record of environmental and biostratographic changes at the end of Cretaceous. Closely spaced samples, representing time intervals as short as 102 or 103 years, were analyzed for their bulk carbonate and trace-metal compositions, and for oxygen and carbon isotopic compositions. The data indicate that at the end of Cretaceous, when a high proportion of the ocean9s planktic organisms were eliminated, an associated reduction in productivity led to a partial transfer of dissolved carbon dioxide from the oceans to the atmosphere. This resulted in a large increase of the atmospheric carbon dioxide during the next 50,000 years, which is believed to have caused a temperature rise revealed by the oxygen-isotope data. The lowermost Tertiary sediments at site 524 include fossils with Cretaceous affinities, which may include both reworked individuals and some forms that survived for a while after the catastrophe. Our data indicate that many of the Cretaceous pelagic organisms became extinct over a period of a few tens of thousands of years, and do not contradict the scenario of cometary impact as a cause of mass mortality in the oceans, as suggested by an iridium anomaly at the Cretaceous-Tertiary boundary.

Method for improving fluid recoveries from earthen formations

Abstract: This is a method for the in-situ placement of a barrier to fluid flow in openings in subterranean deposits. A number of wells are drilled in fluid communication with openings in the deposit, and a barrier-forming fluid is injected into openings in the deposit through on the wells. A driving fluid is introduced into openings in the deposit for excluding the barrier-forming fluid from communicating openings between wells. Other wells not being used for the introduction of driving fluid to fluid flows are closed during this step, except for a monitoring flow suitable to detect a flow from the driving fluid. The other wells are opened after detection of the driving fluid to a flow of the driving fluid suitable to circulate the barrier- forming fluid from the openings and the wells. (9 claims)