000			03620nam a2200397 4500
005			20260520010400.0
008			260224s2018 xxu esp
041			_aEspañol
082			_a068.82 553.28 C62 2018 0015650
245	0	0	_aNuevas tecnologías en pozos horizontales fracturados en zonas próximas al contacto de agua en un gigante de gas Formación Sierras Blancas - Yacimiento Loma La Lata, Cuenca Neuquina, Argentina
260			_a _b _c2018
270			_a28/06/2022 ; 18/03/2019
300			_a19 p. ; 93-112
520			_aNew technologies applied to horizontal wells fractured near gas-water contact in a gas giant. In a mature gas field with recovery factor over 80%, it is a big challenge to find new development opportunities. This is the case of Loma La Lata, a traditional gas field which mainly produces gas and condensate from Sierras Blancas reservoir. With permeabilities between 1 and 50 mD, the central part of the field has been developed since its discovery, with more than 300 wells drilled so far. This development strategy has left to the north-east, the deeper part of the reservoir, a long, slim, undrilled area, probably due to the proximity of the gas-water contact. This two-layered reservoir, with the lower, more depleted layer, containing the mobile water, came to offer a new development opportunity to the team. The pressure estimation per layer and the structural uncertainty in an undrilled zone were the main issues that had to be overcome. The use of mud logging and LWD allowed the team to adjust the landing point and navigation of the horizontal well within the thin upper layer. It was a fact that contacting the lower layer would have led to very low productivities, due to low pressure or to water break-in. Besides, these reservoirs are generally not productive without some form of mechanical stimulation, so the completion and stimulation design were fundamental for the project success. New fracturing technologies that allowed to make numerous small hydraulic fractures controlling the height growth in order not to contact the lower layer, seemed to be a good alternative to achieve better productivity. The use of gas, oil and water tracers appeared to be of great help to identify the frac ports that make the highest gas or water contributions. This information can be used later on to schedule a workover to shut certain ports. With only one well drilled so far, the successful navigation and completion operations together with the good productivity results, which were higher than expected, show that boundary reservoir development with horizontal wells seems to be promising.
773			_g
942			_cCONGTP
100	1		_aGhiglione, Federico _958619
100	1		_aCabrera, Daniel _958620
100	1		_aGeorgiades, Diana _958621
100	1		_aRanalli, José _955730
100	1		_aÁlvarez, Luis _98778
100	1		_aZurita, Daniela _947460
100	1		_aCalvo, Gabriela _958622
100	1		_aGiannini, Leandro _958623
100	1		_aOrlandi, Carlos _955232
111	2		_aCongreso de Exploración y Desarrollo de Hidrocarburos (10mo. : 2018 nov. 5 - 9 : Mendoza) _9573
111	2		_aSimposio de Desarrollo de Hidrocarburos (2018 nov. 5 - 9 : Mendoza) _9692
650		0	_aFractura _9942
650		0	_aPozos horizontales _93287
650		0	_aTecnología de fractura _958624
650		0	_aCuenca Neuquina _9919
650		0	_aSierras Blancas _958625
650		0	_aLoma La Lata _958626
999			_c192759 _d192759
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SDH/1466.pdf