000			02091nab a2200205 4500
005			20260520001933.0
008			260224s2005 xxu
245	0	0	_aThe lacustrine Liangjialou Fan in the Dongying Depression. Eastern China: occurrence of deep-water reservoir sandstones in a non-marine rift basin
260			_a _b _coct. 2005
270			_a23/05/2011 ; 23/05/2011
300			_a16 p. ; 397-412
520			_aTranscripción del resumen del autor. A lacustrine fan covering an area of about 175sq. km has been identified in the Liangjialou area in the SW of the Dongying Depression, a Tertiary non-marine rift basin in eastern China. Fluvial and deltaic sandstones are established reservoir rocks in the basin, and the deep-water sandstones of the fan succession, which are assigned to Member 3 of the lower Tertiary Shahejie Formation, are also thought to have important reservoir potential. Available data for this study included some 800m of core from 16 wells, well-log data from 426 wells, and 220 km of 3D surveys together with well-test and other production data. From geomorphological reconstructions of the fan, we distinguish first-order (major) fan channels from second-order branched and more distal tip channels. Crevasse splays and overbank shales occur between channels, and sandstone lobes were deposited at channel mouths. Conglomeratic sandstones deposited in major channels are probably the most promising reservoir facies (average porosity c. 20%; average permeability >1D). Fan construction took place during a single complete cycle of lake level variation which was composed of several sub-cycles. During initial highstand conditions, the fan was dominated by small-scale branched and tip channels and intervening sandy lobes. Fan size increased rapidly during the following lowstand, and then decreased during the ensuing highstand.
581			_a4
773	0		_tJournal of Petroleum Geology _g28
942			_cARTICULO
100	1		_aQiang, Jin _913542
100	1		_aRui, Wang _949965
100	1		_aGuangyou, Zhu _949966
999			_c181932 _d181932