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1.发明公开TREATMENT FLUIDS CONTAINING BIODEGRADABLE CHELATING AGENTS AND METHODS FOR USE THEREOF 审中-公开与生物可降解处理液及其用途螯合剂的方法
公开(公告)号：EP2702115A1
公开(公告)日：2014-03-05
申请号：EP12718713.6
申请日：2012-04-26
摘要： Treatment fluids containing biodegradable chelating agents can be used in various treatment methods. The methods can comprise providing a treatment fluid that comprises an aqueous base fluid and a chelating agent composition, and introducing the treatment fluid into at least a portion of a subterranean formation. The treatment fluids can also be used for treatment of pipes or tubing such as, for example, well bore pipes or tubing penetrating a subterranean formation and above-ground pipelines. Illustrative biodegradable chelating agents include, but are not limited to, glutamic acid diacetic acid, methylglycine diacetic acid, &bgr;-alanine diacetic acid, S,S-ethylenediaminedisuccinic acid, iminodisuccinic acid, hydroxyiminodisuccinic acid, any salt thereof, any derivative thereof, and any combination thereof. The treatment fluids can optionally comprise an acid, which can include hydrofluoric acid or a hydrofluoric acid generating compound.
摘要翻译： 处理流体含有可生物降解的螯合剂可以以各种治疗方法中使用。 该方法可以包括：提供处理流体确实wässrige基础流体和螯合剂的组合物包括，并且将所述处理流体引入地层的至少一部分中。 处理流体可因此用于治疗管道或管道的：诸如，例如，井眼管或管道穿透地下地层的和地上管线。 说明性的可生物降解的螯合剂包括，但不限于，谷氨酸二乙酸，甲基甘氨酸二乙酸，β-丙氨酸二乙酸，S，S-乙二胺二琥珀酸，亚氨基二琥珀酸，hydroxyiminodisuccinic酸，它们的任何盐，它们的任何衍生物，和 它们的任何组合。 处理流体可以任选地包含酸的，其可以包括氢氟酸或氢氟酸产生化合物。
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2.发明公开ADDITIVES TO SUPPRESS SILICA SCALE BUILD-UP AND METHODS OF USE THEREOF 审中-公开为了降低KIESELSÄUREINKRUSTATIONEN配件及其使用方法
公开(公告)号：EP2635652A1
公开(公告)日：2013-09-11
申请号：EP11782654.5
申请日：2011-11-01
发明人： REYES, Enrique A.
摘要： Treatments and compounds useful in subterranean formations are discussed, with particular attention to those formations where surfaces may be subject to silica scale build-up. Certain embodiments pertain to utilizing silica scale control additives with remediation and stimulation treatments. One example of a suitable method includes providing an acidic treatment fluid comprising: a base fluid, an acid, and a silica scale control additive; contacting at least a portion of a subterranean formation with the acidic treatment fluid; and allowing the acidic treatment fluid to interact with silica scale buildup in the subterranean formation so that at least a portion of the silica scale buildup is removed.
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3.发明公开ACIDIC TREATMENT FLUIDS CONTAINING NON-POLYMERIC SILICA SCALE CONTROL ADDITIVES AND METHODS RELATED THERETO 审中-公开与非聚合物添加剂，以防止二氧化硅存款及相关手续酸化处理液
公开(公告)号：EP2652067A2
公开(公告)日：2013-10-23
申请号：EP11805557.3
申请日：2011-12-13
发明人： REYES, Enrique A.
摘要： The present invention relates to treatment fluids and compounds useful in subterranean formations, particularly those that retard deposition of silica scale in subterranean formations. Methods of the present invention comprise providing a treatment fluid having a pH of 6 or less that comprises an acidic base fluid and a non-polymeric silica scale control additive and introducing the treatment fluid into at least a portion of a subterranean formation. The non- polymeric silica scale control additive retards deposition of silica scale in the subterranean formation.
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