Results 201 to 210 of about 5,016 (245)

Study on mud discharge after emergency disconnection of deepwater drilling risers

Journal of Petroleum Science and Engineering, 2020
Abstract Mud is often discharged into seawater after emergency disconnection of risers in offshore oil and gas drilling engineering. The discharged mud needs to be simulated accurately since it can produce a huge load on risers. Several mud discharge models have been proposed, such as Young's slug model, SFM model, WFC model and one-dimensional ...
Guoming Chen
exaly   +2 more sources

Design and research on internal mud discharge device of jacket platform legs

International Conference on Sensors and Instruments (ICSI 2021), 2021
During the disposal of the abandoned jacket platform, all steel piles within 4 meters below the mud surface of the seabed must be removed. In the process of disposing of steel piles using the internal cutting method, it is necessary to drain the mud inside the legs.
exaly   +2 more sources

Methane discharge from a submarine mud volcano - A multiple-method approach

OCEANS 2008, 2008
Submarine methane discharge manifests in different forms and occurs on different spatial scales. Physical, biological and geochemical processes interact at the seafloor. Comprehension and description of such complex systems requires a suite of different sampling and in situ measurement technologies.
E. J. Sauter, Alfred Wegener
exaly   +4 more sources

Flocculation and the Fate of Drill Mud Discharges

Estuarine and Coastal Modeling (2001), 2002
Flocculation of the fine particulate portion of drilling mud during discharge into the ocean provides a pathway for an impact on the benthic environment in that the higher settling velocity of flocculated particles leads to higher concentrations near the sea floor.
T. Tedford, C. G. Hannah, T. G. Milligan, J. W. Loder, D. K. Muschenheim   +4 more
openaire   +1 more source

Pulsed oil discharge from a mud volcano

Geology, 2000
In this paper we document instances where change in the magnitude of natural oil seepage coincided with fluctuations of fluid temperature in a seafloor mud volcano. Oil slicks were detected floating near commercial oil fields in the northern Gulf of Mexico in a time series of six satellite synthetic aperture radar (SAR) images collected over a 10 month
Ian R. MacDonald, David B. Buthman, William W. Sager, Michael B. Peccini, Norman L. Guinasso   +4 more
openaire   +1 more source

Microbiological investigation of methane‐ and hydrocarbon‐discharging mud volcanoes in the Carpathian Mountains, Romania

Environmental Microbiology, 2006
Summary Paclele Mici is a terrestrial mud volcano field located in the Carpathian Mountains (Romania), where thermal alteration of sedimentary organic compounds leads to methane, higher hydrocarbons and other petroleum compounds that are continuously released into the environment.
Alain, K., Holler, T., Musat, F., Elvert, M., Treude, T., Krüger, M.   +5 more
openaire   +3 more sources

Deep gases discharged from mud volcanoes of Azerbaijan: New geochemical evidence

Marine and Petroleum Geology, 2013
This paper presents new geochemical data of hydrocarbon-rich gases released from some mud volcanoes of Azerbaijan. Methane is considerably the most abundant component of all the sampled gases, which show ?D-CH4 and ?13C-CH4 values likely related to a dominant thermogenic source.
Bonini M, Tassi F, Feyzullayev AA, Aliyev CS, Capecchiacci F, Minissale A   +5 more
openaire   +3 more sources

The Generic Mud Concept for NPDES Permitting of Offshore Drilling Discharges

Journal of Petroleum Technology, 1985
Summary U. S. Environmental Protection Agency (EPA) Region 11 granted the first offshore drilling National Pollution Discharge Elimination System (NPDES) permits to the Mid-Atlantic operators in 1978. The generic or standard mud concept was developed by the Offshore Operators Committee with EPA Region 11 to provide ...
R.C. Ayers, T.C. Sauer, P.W. Anderson
openaire   +1 more source

Origin of fluids discharged from mud volcanoes in SE Iran

Marine and Petroleum Geology, 2019
Onshore and offshore mud volcanism in the Makran accretionary prism is related to convergence of the Arabian and Eurasian plates. This study describes the chemical and isotopic composition of hydrocarbon-rich fluids from four active on-shore mud volcanoes located along the Makran coast (southern Iran), namely Borborok, Ain, Napag and Sand Mirsuban ...
Babadi M.[1], Mehrabi B.[1], Tassi F.[2, 3], Cabassi J.[2, 3], Vaselli O.[2, 3], Shakeri A.[1], Pecchioni E.[2], Venturi S.[2], Zelenski M.[4], Chaplygin I. [5]   +12 more
openaire   +4 more sources

Effects of Tide and River Discharge on Mud Transport on Intertidal Flat

Journal of Waterway, Port, Coastal, and Ocean Engineering, 2012
Fine-grained sediment budgets based on the monthly bed level and net sediment flux monitoring from October 2006 to October 2007 are estimated to examine the relative contributions of tides and river discharge to mud transport on an intertidal flat adjacent to a river mouth in a semiclosed sound.
F. Yamada, N. Kobayashi, Y. Shirakawa, Y. Watabe, S. Sassa, A. Tamaki   +5 more
openaire   +1 more source