%0 Journal Article
%T Injecting Large Volumes of Preformed Particle Gel for Water Conformance Control Injection d¡¯importants volumes de gel de type GPP (gel ¨¤ particules pr¨¦form¨¦es) pour le contr le du balayage en injection d¡¯eau dans les r¨¦servoirs matures
%A Bai Baojun
%A Wei Mingzhen
%A Liu Yuzhang
%J Oil & Gas Science and Technology
%D 2013
%I Institut Fran?ais du P¨¦trole
%R 10.2516/ogst/2012058
%X This paper describes Preformed Particle Gel (PPG) treatments for in-depth fluid diversion in four injection wells located in the northern section of the Lamadian reservoir, Daqing oilfield, China, which is a sandstone reservoir with thick heterogeneous pay zones. Forty-six producers were connected to the four treated injectors with an average water cut of 95.4% before PPG treatments. A large volume (more than 1 000 m3) of PPG suspension with concentrations of 1900-2 500 mg/L and particle sizes of 0.06-3.0 mm was injected into each well, each injection spanning approximately four months. The injection PPG suspension volumes range from 11458 to 17625 m3 per well with a total of 56269 m3 (295680 lb of dried PPG) for the four wells, which indicated the existence of super-K zones or fractures in the formation. During PPG injection, real-time data, including injection pressure, injection rate and particle sizes, were monitored to tune our treatment design and to analyze the practical status of the mature reservoir. This paper reports detailed information for the four well treatments, including well candidate selection criteria, treatment design, real-time monitoring results during PPG injection and treatment results. Le pr¨¦sent article d¨¦crit les traitements ¨¤ base de gel ¨¤ particules pr¨¦form¨¦es (GPP) pour la d¨¦rivation de fluide en profondeur dans quatre puits d¡¯injection situ¨¦s dans la partie nord du gisement de Lamandian, dans le champs p¨¦trolif¨¨re de Daqing en Chine; il s¡¯agit d¡¯un gisement de gr¨¨s pr¨¦sentant des couches productrices ¨¦paisses et h¨¦t¨¦rog¨¨nes. Quarante-six producteurs ont ¨¦t¨¦ raccord¨¦s aux quatre injecteurs trait¨¦s avec une proportion d¡¯eau moyenne de 95,4 % avant les traitements ¨¤ base de GPP. Un important volume (plus de 1000 m3) de suspension de GPP pr¨¦sentant des concentrations de 1900 ¨¤ 2 500 mg/L et des tailles de particule de 0,06 ¨¤ 3,0 mm a ¨¦t¨¦ inject¨¦ dans chaque puits, chaque injection durant environ quatre mois. Les volumes d¡¯injection de suspension de GPP vont de 11458 ¨¤ 17 625 m3 par puits pour un total de 56 269 m3 (295 680 lb, soit environ 134118 kg, de mati¨¨re s¨¨che de GPP) pour les quatre puits, ce qui indique l¡¯existence de zones ¨¤ haute perm¨¦abilit¨¦ (K) ou de fractures dans la formation. Lors de l¡¯injection de GPP, des donn¨¦es en temps r¨¦el, y compris la pression d¡¯injection, le taux d¡¯injection et les tailles de particule, ont ¨¦t¨¦ contr l¨¦es pour ajuster notre m¨¦thode de traitement aux conditions de ce r¨¦servoir mature. Cet article pr¨¦sente des informations d¨¦taill¨¦es sur les traitements des quatre puits, y compris les c
%U http://dx.doi.org/10.2516/ogst/2012058