公开(公告)号：US5083615A

公开(公告)日：1992-01-28

申请号：US471105

申请日：1990-01-26

申请人： Edward McLaughlin ,  F. Carl Knopf

发明人： Edward McLaughlin ,  F. Carl Knopf

IPC分类号： C06D5/08 ,  E21B43/263

CPC分类号： C06D5/08 ,  E21B43/263

摘要： In a gas-generating chemical reaction carried out in a borehole that is largely filled with water, substantial pressure increases can be generated. This pressure can be used to fracture rocks around the borehole and, hence, stimulate water, oil or gas wells in tight rock formations. This pressure increase can also be used to fracture coal seams for enhanced in-situ gasification or methane recovery. This invention discloses the use of a new, novel system, based on the homogeneous reaction of aluminum alkyls with water, to create a controlled pressure increase. The most appropriate reaction mixture, as characterized by the rise of time of the generated pressure pulse and the energy content per unit length of borehole charge, is disclosed in this new invention.

摘要翻译： 在大量充满水的钻孔中进行的气体发生化学反应中，可能产生显着的压力增加。 这种压力可以用来破坏井眼周围的岩石，从而刺激紧密岩层中的水，油或气井。 这种压力增加也可用于破碎煤层，以增强原位气化或甲烷回收。 本发明公开了基于烷基铝与水的均相反应的新型新型体系的用途，以产生受控的压力增加。 在本新发明中公开了最适合的反应混合物，其特征在于产生的压力脉冲的时间的增加和钻孔电荷的每单位长度的能量含量。

公开(公告)号：US06264736B1

公开(公告)日：2001-07-24

申请号：US09170480

申请日：1998-10-13

申请人： F. Carl Knopf ,  Kerry M. Dooley

发明人： F. Carl Knopf ,  Kerry M. Dooley

IPC分类号： C04B2206

CPC分类号： C04B40/0231 ,  C04B2103/007 ,  Y02P40/18 ,  Y10S264/43 ,  C04B16/06 ,  C04B28/02

摘要： A method is disclosed for rapidly carbonating large cement structures, by forming and hardening cement in a mold under high carbon dioxide density, such as supercritical or near-supercritical conditions. The method is more reliable, efficient, and effective than are post-molding treatments with high-pressure CO2. Cements molded in the presence of high-pressure CO2 are significantly denser than otherwise comparable cements having no CO2 treatment, and are also significantly denser than otherwise comparable cements treated with CO2 after hardening. Bulk carbonation of cementitious materials produces several beneficial effects, including reducing permeability of the cement, increasing its compressive strength, and reducing its pH. These effects are produced rapidly, and extend throughout the bulk of the cement—they are not limited to a surface layer, as are prior methods of post-hardening CO2 treatment. The method may be used with any cement or concrete composition, including those made with waste products such as fly ash or cement slag. Surface carbonation is almost instantaneous, and bulk carbonation deep into a form is rapid. By combining molding, curing, and carbonation into a single step, carbon dioxide is better distributed throughout the entire specimen or form, producing a uniform product.

摘要翻译： 公开了一种用于通过在高二氧化碳密度例如超临界或近超临界条件下在模具中形成和硬化水泥来快速碳酸化大型水泥结构的方法。 该方法比使用高压CO2的后成型处理更可靠，高效，有效。 在高压二氧化碳存在下模制的水泥比没有二氧化碳处理的其他可比较的水泥明显更致密，并且与硬化后用二氧化碳处理的其他可比较的水泥相比也明显更致密。 水泥质材料的大量碳酸化产生了几个有益效果，包括减少水泥的渗透性，增加其抗压强度和降低其pH值。 这些效应快速生产，并且在整个大部分水泥中延伸 - 它们不限于表面层，如同硬化后的二氧化碳处理的现有方法一样。 该方法可以与任何水泥或混凝土组合物一起使用，包括用废弃物如飞灰或水泥渣制成的那些。 表面碳酸化几乎是瞬时的，并且形成深层的碳酸化是快速的。 通过将成型，固化和碳酸化组合成单一步骤，二氧化碳更好地分布在整个样品或形式中，产生均匀的产品。

公开(公告)号：US06387174B2

公开(公告)日：2002-05-14

申请号：US09829892

申请日：2001-04-10

申请人： F. Carl Knopf ,  Kerry M. Dooley

发明人： F. Carl Knopf ,  Kerry M. Dooley

IPC分类号： C04B1428

CPC分类号： C04B40/0231 ,  C04B2103/007 ,  Y02P40/18 ,  Y10S264/43 ,  C04B16/06 ,  C04B28/02

摘要： A method is disclosed for rapidly carbonating large cement structures, by forming and hardening cement in a mold under high carbon dioxide density, such as supercritical or near-supercritical conditions. The method is more reliable, efficient, and effective than are post-molding treatments with high-pressure CO2. Cements molded in the presence of high-pressure CO2 are significantly denser than otherwise comparable cements having no CO2 treatment, and are also significantly denser than otherwise comparable cements treated with CO2 after hardening. Bulk carbonation of cementitious materials produces several beneficial effects, including reducing permeability of the cement, increasing its compressive strength, and reducing its pH. These effects are produced rapidly, and extend throughout the bulk of the cement—they are not limited to a surface layer, as are prior methods of post-hardening CO2 treatment. The method may be used with any cement or concrete composition, including those made with waste products such as fly ash or cement slag. Surface carbonation is almost instantaneous, and bulk carbonation deep into a form is rapid. By combining molding, curing, and carbonation into a single step, carbon dioxide is better distributed throughout the entire specimen or form, producing a uniform product.

摘要翻译： 公开了一种用于通过在高二氧化碳密度例如超临界或近超临界条件下在模具中形成和硬化水泥来快速碳酸化大型水泥结构的方法。 该方法比使用高压CO2的后成型处理更可靠，高效，有效。 在高压二氧化碳存在下模制的水泥比没有二氧化碳处理的其他可比较的水泥明显更致密，并且与硬化后用二氧化碳处理的其他可比较的水泥相比也明显更致密。 水泥质材料的大量碳酸化产生了几个有益效果，包括减少水泥的渗透性，增加其抗压强度和降低其pH值。 这些效应快速生产，并且在整个大部分水泥中延伸 - 它们不限于表面层，如同硬化后的二氧化碳处理的现有方法一样。 该方法可以与任何水泥或混凝土组合物一起使用，包括用废弃物如飞灰或水泥渣制成的那些。 表面碳酸化几乎是瞬时的，并且形成深层的碳酸化是快速的。 通过将成型，固化和碳酸化组合成单一步骤，二氧化碳更好地分布在整个样品或形式中，产生均匀的产品。