公开(公告)号：US20060157248A1

公开(公告)日：2006-07-20

申请号：US11316021

申请日：2005-12-21

申请人： Ann Hoefer ,  Philip Sullivan ,  Golchehreh Salamat ,  Curtis Boney ,  Jesse Lee ,  Yiyan Chen ,  Dean Willberg ,  Marina Bulova ,  Christopher Fredd ,  Belgin Baser ,  Timothy Pope

发明人： Ann Hoefer ,  Philip Sullivan ,  Golchehreh Salamat ,  Curtis Boney ,  Jesse Lee ,  Yiyan Chen ,  Dean Willberg ,  Marina Bulova ,  Christopher Fredd ,  Belgin Baser ,  Timothy Pope

IPC分类号： E21B43/25 ,  C09K8/02

CPC分类号： C09K8/516 ,  C09K8/12 ,  C09K8/506 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/52 ,  C09K8/68 ,  C09K8/70 ,  C09K8/80 ,  C09K2208/08 ,  C09K2208/26

摘要： Well treatment is disclosed that includes injecting a well treatment fluid with insoluble polyol polymer such as polyvinyl alcohol (PVOH) dispersed therein, depositing the insoluble polymer in the wellbore or an adjacent formation, and thereafter dissolving the polymer by reducing salinity and/or increasing temperature conditions in the environment of the polymer deposit. The method is disclosed for filter cake formation, fluid loss control, drilling, hydraulic fracturing and fiber assisted transport, where removal of the polyol at the end of treatment or after treatment is desired. The method is also disclosed for providing dissolved polyol as a delayed breaker in crosslinked polymer viscosified systems and viscoelastic surfactant systems. Also disclosed are well treatment fluids containing insoluble amorphous or at least partially crystalline polyol, and a PVOH fiber composition wherein the fibers are stabilized from dissolution by salinity.

摘要翻译： 公开了一种井处理方法，包括用不溶性多元醇聚合物（如分散在其中的聚乙烯醇（PVOH））注入井处理流体，将不溶性聚合物沉积在井筒或邻近地层中，然后通过降低盐度和/或升高温度溶解聚合物 聚合物沉积环境条件。 公开了用于滤饼形成，流体损失控制，钻井，水力压裂和纤维辅助运输的方法，其中期望在处理结束或处理后去除多元醇。 还公开了用于在交联聚合物增粘体系和粘弹性表面活性剂体系中提供溶解的多元醇作为延迟的破乳剂的方法。 还公开了含有不溶性无定形或至少部分结晶多元醇的良好处理液，以及其中纤维通过盐度溶解而稳定的PVOH纤维组合物。

公开(公告)号：US20060113077A1

公开(公告)日：2006-06-01

申请号：US11294983

申请日：2005-12-05

申请人： Dean Willberg ,  Marina Bulova ,  Christopher Fredd ,  Alexey Vostrukhov ,  Curtis Boney ,  John Lassek ,  Ann Hoefer ,  Philip Sullivan

发明人： Dean Willberg ,  Marina Bulova ,  Christopher Fredd ,  Alexey Vostrukhov ,  Curtis Boney ,  John Lassek ,  Ann Hoefer ,  Philip Sullivan

IPC分类号： E21B43/267

CPC分类号： C09K8/80 ,  C09K8/42 ,  C09K8/467 ,  C09K8/508 ,  C09K8/68 ,  C09K8/76 ,  E21B43/26

摘要： A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.

摘要翻译： 提供了一种通过在井眼穿透地层中形成裂缝，穿孔，井眼或多于一个位置的临时塞子进行井处理的方法，其中井处理方法包括：注入浆料 包括可降解材料，允许可降解材料在穿透地层的井的穿孔，断裂或井筒中形成塞子; 进行井下作业; 并允许可降解材料在选定的时间后降解，使得塞消失。

公开(公告)号：US20070042913A1

公开(公告)日：2007-02-22

申请号：US11205560

申请日：2005-08-17

申请人： Richard Hutchins ,  Ann Hoefer ,  Stanley McConnell ,  Alejandro Pena

发明人： Richard Hutchins ,  Ann Hoefer ,  Stanley McConnell ,  Alejandro Pena

IPC分类号： C09K8/60

CPC分类号： C09K8/703 ,  C09K8/68 ,  C09K8/685 ,  C09K8/94 ,  C09K2208/30

摘要： This invention relates to fluid compositions used in treating a subterranean formation. In particular, the invention is aqueous wellbore treatment compositions which are foams containing a viscosifying agent, a foam extender, a gas component, and a surfactant, as well as methods of forming such fluids, and uses thereof. The viscosifying agent may be a hydratable polymer, viscoelastic surfactant, or heteropolysaccharide. The foam extender may be a material such as a polyoxyalkyleneamines, ethylenepolyamines, tertiary polyamines, bicarbonate, carbonate, phosphate, or sesquicarbonate.

摘要翻译： 本发明涉及用于处理地层的流体组合物。 特别地，本发明是含有增粘剂，泡沫增量剂，气体组分和表面活性剂的泡沫的水性井筒处理组合物，以及形成这种流体的方法及其用途。 增粘剂可以是可水合的聚合物，粘弹性表面活性剂或杂多糖。 泡沫增量剂可以是诸如聚氧亚烷基胺，亚乙基多胺，叔多胺，碳酸氢盐，碳酸盐，磷酸盐或倍半碳酸盐的材料。