-
公开(公告)号：US09394757B2
公开(公告)日：2016-07-19
申请号：US14168877
申请日：2014-01-30
CPC分类号： E21B33/13 , C09K8/426 , E21B33/12 , E21B36/008
摘要： Wells are sealed by means of thermite reaction charges inserted into the wells. The reaction charge can be diluted by addition of metal oxides, silica, or the like control reaction pressure, peak temperature, reaction rate, and expansion characteristics of the resulting thermite plug. The use of dilution of the thermite reactants can take the form of a thermite charge with specific layers, including relatively high and low reaction temperature layers. The ignition source can be oriented to achieve directional control on the product expansion including radial or axial expansion. The charge can be loaded with a large mass to compress the resulting thermite plug into the borehole wall and reduce its porosity during the reaction process. A further variation involves continuous feed of the thermite reactants to the reaction zone. Various combinations and permutations of the above inventive concepts are described.
摘要翻译： 孔通过插入孔中的铝热反应电荷来密封。 通过添加金属氧化物，二氧化硅等控制反应压力，峰值温度，反应速度和所得到的热铝塞的膨胀特性，可以稀释反应装料。 利用铝酸盐反应物的稀释可以采用具有特定层（包括相对高和低的反应温度层）的热电荷的形式。 点火源可以定向以实现产品膨胀的方向控制，包括径向或轴向膨胀。 电荷可以装载大量的物质，以将所得到的热铝塞压缩到井眼壁中，并在反应过程中减少其孔隙度。 另外的变化涉及将铝热反应物连续进料到反应区。 描述上述发明构思的各种组合和排列。
-
公开(公告)号：US09228412B2
公开(公告)日：2016-01-05
申请号：US14168863
申请日：2014-01-30
IPC分类号： E21B33/138 , E21B33/13 , E21B33/134
CPC分类号： E21B33/13 , E21B33/134
摘要： Wells are sealed by means of thermite reaction charges inserted into the wells. The reaction charge can be diluted by addition of metal oxides, silica, or the like control reaction pressure, peak temperature, reaction rate, and expansion characteristics of the resulting thermite plug. The use of dilution of the thermite reactants can take the form of a thermite charge with specific layers, including relatively high and low reaction temperature layers. The ignition source can be oriented to achieve directional control on the product expansion including radial or axial expansion. The charge can be loaded with a large mass to compress the resulting thermite plug into the borehole wall and reduce its porosity during the reaction process. A further variation involves continuous feed of the thermite reactants to the reaction zone. Various combinations and permutations of the above inventive concepts are described.
-
公开(公告)号：US20200208494A1
公开(公告)日：2020-07-02
申请号：US16237861
申请日：2019-01-02
发明人： William Edward Lowry
IPC分类号： E21B33/134 , E21B43/02 , E21B21/00
摘要： Methods and apparatus for forming platforms and flow control features in underground wells is described, using modified thermite reactions to form a ceramic plug in place. The reactive package is engineered to expand laterally, filling the well, and may be used to form a ceramic bridge plug, porous ceramic screen sections, or mitigate lost circulation of drilling fluids. These objectives are achieved through the design of the reactive package and through use of carefully chosen reaction additives that control the molten product rheology, solidification temperature, and pore generations and sustainment.
-
公开(公告)号：US20150211327A1
公开(公告)日：2015-07-30
申请号：US14168867
申请日：2014-01-30
CPC分类号： E21B33/13 , E21B33/134
摘要： Wells are sealed by means of thermite reaction charges inserted into the wells. The reaction charge can be diluted by addition of metal oxides, silica, or the like control reaction pressure, peak temperature, reaction rate, and expansion characteristics of the resulting thermite plug. The use of dilution of the thermite reactants can take the form of a thermite charge with specific layers, including relatively high and low reaction temperature layers. The ignition source can be oriented to achieve directional control on the product expansion including radial or axial expansion. The charge can be loaded with a large mass to compress the resulting thermite plug into the borehole wall and reduce its porosity during the reaction process. A further variation involves continuous feed of the thermite reactants to the reaction zone. Various combinations and permutations of the above inventive concepts are described.
摘要翻译： 孔通过插入孔中的铝热反应电荷来密封。 通过添加金属氧化物，二氧化硅等控制反应压力，峰值温度，反应速率和所得到的热铝塞的膨胀特性，可以稀释反应装料。 利用铝酸盐反应物的稀释可以采用具有特定层（包括相对较高和低反应温度的层）的热电荷形式。 点火源可以定向以实现产品膨胀的方向控制，包括径向或轴向膨胀。 电荷可以装载大量的物质，以将所得到的热铝塞压缩到井眼壁中，并在反应过程中减少其孔隙度。 另外的变化涉及将铝热反应物连续进料到反应区。 描述上述发明构思的各种组合和排列。
-
公开(公告)号：US11149517B2
公开(公告)日：2021-10-19
申请号：US16237861
申请日：2019-01-02
发明人： William Edward Lowry
IPC分类号： E21B33/134 , E21B21/00 , E21B43/02
摘要： Methods and apparatus for forming platforms and flow control features in underground wells is described, using modified thermite reactions to form a ceramic plug in place. The reactive package is engineered to expand laterally, filling the well, and may be used to form a ceramic bridge plug, porous ceramic screen sections, or mitigate lost circulation of drilling fluids. These objectives are achieved through the design of the reactive package and through use of carefully chosen reaction additives that control the molten product rheology, solidification temperature, and pore generations and sustainment.
-
公开(公告)号：US20150211328A1
公开(公告)日：2015-07-30
申请号：US14168868
申请日：2014-01-30
IPC分类号： E21B33/134 , E21B33/12
CPC分类号： E21B33/1208 , C09K8/00 , E21B33/13 , E21B43/1185 , F42D1/18
摘要： Wells are sealed by means of thermite reaction charges inserted into the wells. The reaction charge can be diluted by addition of metal oxides, silica, or the like control reaction pressure, peak temperature, reaction rate, and expansion characteristics of the resulting thermite plug. The use of dilution of the thermite reactants can take the form of a thermite charge with specific layers, including relatively high and low reaction temperature layers. The ignition source can be oriented to achieve directional control on the product expansion including radial or axial expansion. The charge can be loaded with a large mass to compress the resulting thermite plug into the borehole wall and reduce its porosity during the reaction process. A further variation involves continuous feed of the thermite reactants to the reaction zone. Various combinations and permutations of the above inventive concepts are described.
-
公开(公告)号：US20150211322A1
公开(公告)日：2015-07-30
申请号：US14168877
申请日：2014-01-30
CPC分类号： E21B33/13 , C09K8/426 , E21B33/12 , E21B36/008
摘要： Wells are sealed by means of thermite reaction charges inserted into the wells. The reaction charge can be diluted by addition of metal oxides, silica, or the like control reaction pressure, peak temperature, reaction rate, and expansion characteristics of the resulting thermite plug. The use of dilution of the thermite reactants can take the form of a thermite charge with specific layers, including relatively high and low reaction temperature layers. The ignition source can be oriented to achieve directional control on the product expansion including radial or axial expansion. The charge can be loaded with a large mass to compress the resulting thermite plug into the borehole wall and reduce its porosity during the reaction process. A further variation involves continuous feed of the thermite reactants to the reaction zone. Various combinations and permutations of the above inventive concepts are described.
-
公开(公告)号：US09494011B1
公开(公告)日：2016-11-15
申请号：US15205176
申请日：2016-07-08
CPC分类号： E21B33/13 , C09K8/426 , E21B33/12 , E21B36/008
摘要： A platform is formed in a well below a target plug zone by lowering a thermite reaction charge into the well and igniting it, whereby the products of the reaction are allowed to cool and expand to form a platform or support in the well. A main thermite reaction charge is placed above the platform and ignited to form a main sealing plug for the well. In some embodiments an upper plug is formed by igniting an upper thermite reaction charge above the main thermite reaction charge. The upper plug confines the products of ignition of the main thermite reaction charge.
摘要翻译： 通过将铝热反应电荷降低到井中并将其点燃，从而使反应产物冷却和膨胀以在井中形成平台或支撑体，在目标塞区的下方形成平台。 主要的铁酸盐反应装料放置在平台上方并点燃以形成井的主密封塞。 在一些实施方案中，通过点燃主要的铝热反应电荷以上的上部热铁反应电荷来形成上部塞子。 上部塞子限制了主要铝质反应物的点火产物。
-
公开(公告)号：US20160312572A1
公开(公告)日：2016-10-27
申请号：US15205176
申请日：2016-07-08
CPC分类号： E21B33/13 , C09K8/426 , E21B33/12 , E21B36/008
摘要： A platform is formed in a well below a target plug zone by lowering a thermite reaction charge into the well and igniting it, whereby the products of the reaction are allowed to cool and expand to form a platform or support in the well. A main thermite reaction charge is placed above the platform and ignited to form a main sealing plug for the well. In some embodiments an upper plug is formed by igniting an upper thermite reaction charge above the main thermite reaction charge. The upper plug confines the products of ignition of the main thermite reaction charge.
摘要翻译： 通过将铝热反应电荷降低到井中并将其点燃，从而使反应产物冷却和膨胀以在井中形成平台或支撑体，在目标塞区的下方形成平台。 主要的铁酸盐反应装料放置在平台上方并点燃以形成井的主密封塞。 在一些实施方案中，通过点燃主要的铝热反应电荷以上的上部热铁反应电荷来形成上部塞子。 上部塞子限制了主要铝质反应物的点火产物。
-
公开(公告)号：US20150211326A1
公开(公告)日：2015-07-30
申请号：US14168863
申请日：2014-01-30
IPC分类号： E21B33/13
CPC分类号： E21B33/13 , E21B33/134
摘要： Wells are sealed by means of thermite reaction charges inserted into the wells. The reaction charge can be diluted by addition of metal oxides, silica, or the like control reaction pressure, peak temperature, reaction rate, and expansion characteristics of the resulting thermite plug. The use of dilution of the thermite reactants can take the form of a thermite charge with specific layers, including relatively high and low reaction temperature layers. The ignition source can be oriented to achieve directional control on the product expansion including radial or axial expansion. The charge can be loaded with a large mass to compress the resulting thermite plug into the borehole wall and reduce its porosity during the reaction process. A further variation involves continuous feed of the thermite reactants to the reaction zone. Various combinations and permutations of the above inventive concepts are described.
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.013 秒)
