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公开(公告)号：US20180038061A1
公开(公告)日：2018-02-08
申请号：US15668513
申请日：2017-08-03
IPC分类号： E02D19/16 , E21B33/035 , C09K8/66
CPC分类号： E02D19/16 , C09K8/426 , C09K8/44 , C09K8/512 , C09K8/66 , E21B29/00 , E21B33/03 , E21B33/035 , E21B36/001
摘要： Disclosed herein is a temporary wellbore sealant, comprising water, a gelling agent; and a filler, wherein: the filler has a lower specific gravity than the water of the sealant; and the sealant has a lower specific heat than the water of the sealant and a method of temporarily sealing a liquid filled wellbore therewith.
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2.发明申请公开(公告)号：US20080196895A1
公开(公告)日：2008-08-21
申请号：US11782151
申请日：2007-07-24
IPC分类号： E21B43/267 , C09K8/60
CPC分类号： C09K8/80 , E21B43/267 , Y10S507/924
摘要： A method of mitigating proppant settling in a hydraulic fracture in order to better suspend the proppant as well as ensure a more uniform pack, by mixing a pre-determined volume percent of low density additive, such as glass beads or other suitable material, such as polylactic acid particles, into the fracturing slurry along with the standard high-density proppant, it is anticipated that density gradients can be induced inside the fracture. Upward movement of low density additive due to them having density lower than the carrier fluid will interfere with downward movement of high-density proppant and vice versa. This mutual interference between the two proppants confined in the narrow fracture will significantly hinder the settling/segregation of the high-density proppant. The low density material has a specific gravity of about 0.3, particle size distribution similar to that of standard proppant, and sufficient mechanical strength to survive fracture closure stress.
摘要翻译： 通过混合预定体积百分比的低密度添加剂，例如玻璃珠或其它合适的材料，例如减少支撑剂沉降在水力裂缝中以便更好地悬浮支撑剂并确保更均匀的包装的方法， 聚乳酸颗粒与标准高密度支撑剂一起进入压裂浆料中，预计在裂缝内可以诱导密度梯度。 由于密度低于载体流体的低密度添加剂的向上运动将干扰高密度支撑剂的向下移动，反之亦然。 限制在狭窄裂缝中的两种支撑剂之间的相互干扰将显着阻碍高密度支撑剂的沉降/分离。 低密度材料的比重约为0.3，粒径分布类似于标准支撑剂，并具有足够的机械强度，可以承受断裂应力。
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3.发明授权公开(公告)号：US07708069B2
公开(公告)日：2010-05-04
申请号：US11782151
申请日：2007-07-24
IPC分类号： E21B43/267 , C09K8/80
CPC分类号： C09K8/80 , E21B43/267 , Y10S507/924
摘要： A method of mitigating proppant settling in a hydraulic fracture in order to better suspend the proppant as well as ensure a more uniform pack, by mixing a pre-determined volume percent of low density additive, such as glass beads or other suitable material, such as polylactic acid particles, into the fracturing slurry along with the standard high-density proppant, it is anticipated that density gradients can be induced inside the fracture. Upward movement of low density additive due to them having density lower than the carrier fluid will interfere with downward movement of high-density proppant and vice versa. This mutual interference between the two proppants confined in the narrow fracture will significantly hinder the settling/segregation of the high-density proppant. The low density material has a specific gravity of about 0.3, particle size distribution similar to that of standard proppant, and sufficient mechanical strength to survive fracture closure stress.
摘要翻译： 通过混合预定体积百分比的低密度添加剂，例如玻璃珠或其它合适的材料，例如减少支撑剂沉降在水力裂缝中以便更好地悬浮支撑剂并确保更均匀的包装的方法， 聚乳酸颗粒与标准高密度支撑剂一起进入压裂浆料中，预计在裂缝内可以诱导密度梯度。 由于密度低于载体流体的低密度添加剂的向上运动将干扰高密度支撑剂的向下移动，反之亦然。 限制在狭窄裂缝中的两种支撑剂之间的相互干扰将显着阻碍高密度支撑剂的沉降/分离。 低密度材料的比重约为0.3，粒径分布类似于标准支撑剂，并具有足够的机械强度，可以承受断裂应力。
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