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Keywords: carbonate
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Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31128-MS
... techniques (Hirasaki et al., 2011). Oil recovery is even more challenging in carbonates compared to sandstone reservoirs. Carbonate reservoirs hold more than 60% of the world's oil and 40% of the world's gas reserves. In addition, approximately 70% of the Middle East reserves are held in carbonate reservoirs...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24227-MS
.... Where deep ocean currents are adequate to wash the fine hemipelagic mud off these carbonates, the latter becomes a clean, suitable substrate for benthic organisms. Unfortunately, 3-D seismic has a vertical sample of around 30 feet and cannot directly provide information about the cleanliness...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20662-MS
... Abstract MultiBeam Echo Sounder (MBES) bathymetric and backscatter data are used to discriminate the backscatter response of four seafloor features: a carbonate mound, a hydrate mound, a small mud volcano, and pockmarks in the vicinity of the welldocumented Bush Hill seep site. Each...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-20014-MS
... surveys or from 3D seismic data. When pockmarks are triggered by FG escape or GH dissociation and dissolution, in situ development of carbonate hardgrounds is sometimes observed. Since its discovery in the 1970s, this particular group of carbonates has been extensively studied, and its genesis is now well...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19352-MS
...), or a thermogenic origin (from a source rock " kitchen??). Whatever its origin, once the methane-enriched fluid reaches the seafloor, it creates a morphology anomaly (crater-like depression), often associated with mineral precipitation, including methane-derived authigenic carbonates. In addition, pockmarks...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2005
Paper Number: OTC-17355-MS
... is presented. Advantages, limitations and cost elements (CAPEX/OPEX) by use of glycol (MEG) vs. alcohols (Methanol/Ethanol) are reviewed and discussed in relation to their applicability. Based on experience, typical operational problems within closed loop MEG systems with salt- and water removal are carbonate...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2002
Paper Number: OTC-14033-MS
... bottoms (mounds, hardgrounds, and nodular masses in unconsolidated sediment) created by precipitation of 13C-depleted Ca-Mg carbonates. Other precipitates such as barite have also been observed in slow-to- moderate flux settings. At the other end of the expulsion spectrum are response features derived...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2001
Paper Number: OTC-13229-MS
... ABSTRACT Stylolites have been reported in basinal, reef, forereef, and backreef carbonates within the Permian Basin of West Texas and southeastern New Mexico. They are described as serrated interfaces between carbonate rock units and are composed of their insoluble residues. Samples...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1997
Paper Number: OTC-8487-MS
... exploratory wells were drilled and about 425,000 km of seismic surveys were acquired and processed. Early exploration concentrated on Albian and Neocomian carbonates. In 1979, Cretaceous and Eocene turbidites became important targets and until 1984, Eocene and Oligocene turbidites represented 50...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1996
Paper Number: OTC-8012-MS
...; (d) post-Miocene salt uplift suggests weakening of the Cretaceous chalk, implying C02 production near the salt top if leaching caused the weakening; (e) the observed salt mushroom implies a fractured or incompetent Jurassic carbonate underlying the Top Cretaceous chalk; (~ A secondary target...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1996
Paper Number: OTC-8173-MS
.... The test was of a horizontal delineation well that was drilled in 1988. The resemoir is comprised of carbonates of the Lower Miocene Zhujiang Formation. The section above the reservoir is a thick sequence of Lower Miocene to recent marine clay stones. The overall development program calls for drilling...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6850-MS
... canyon area mound reservoir characterization bacteria visual observation mexico mud diapir green canyon area neurauter upstream oil & gas sediment authigenic carbonate carbonate continental slope northern gulf northern gulf mud mound continental slope mud volcano otc 6850...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 1992
Paper Number: OTC-6803-MS
... were recently compiled at a scale of 1:1,000,000 by the Minerals Management Service. The maps cover the North, Mid-, and South Atlantic, and South Florida areas. They show deposits of sand, gravel, silt, and clay as well as differences in mineral content, from carbonate-rich sediments in the South...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1991
Paper Number: OTC-6511-MS
... ABSTRACT Since the drilling in January 1987 of the Liuhua 11-1-lA discovery well, six additional wells, four on the primary structure and one each on two satellite structures, have drilled and tested this lower Miocene reservoir carbonate. Deposition of the carbonates took place in isolated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6269-MS
... carbonates of Lower Cretaceous age. It was not until late in 1979, however, that a far more significant hydrocarbon accumulation was found in the Cenomanian sands of the Vermelha Formation. All four fields produce primarily from Vermelha sands deposited on a trend of structures whose genesis was controlled...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1989
Paper Number: OTC-5953-MS
... authigenic carbonate shallow salt diapir structural geology hydrocarbon salt diapir louisiana continental slope carbonate buildup carbonate buildup carbonate mound seafloor diapir continental slope seismic profile diapir crest seafloor feature submersible observation upstream...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1989
Paper Number: OTC-5954-MS
... hydrates. and authigenic carbonate on the Texas/Louisiana continental slope. These vent- type taxa (clams, mussels and tubeworms) are unique in that they are associated with active gas and oil seepage and harbor endosymbiotic, chemoautotrophic bacteria, including a proven methanotroph. INTRODUCTION Deep...

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