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    • 2. 发明申请
    • Method of hydraulic fracturing to reduce unwanted water productions
    • 水力压裂方法可减少不必要的水分产生
    • US20070193746A1
    • 2007-08-23
    • US11787269
    • 2007-04-13
    • Harold BrannonWilliam WoodDonald PurvisAllan RickardsChristopher Stephenson
    • Harold BrannonWilliam WoodDonald PurvisAllan RickardsChristopher Stephenson
    • E21B43/267
    • C09K8/68C09K8/64E21B43/261E21B43/267Y10S507/924
    • A method of hydraulically fracturing a hydrocarbon-bearing subterranean formation ensures that the conductivity of water inflow below the productive zone of the subterranean formation is reduced. The method consists of two principal steps. In the first step, a fracture in and below the productive zone of the formation is initiated by introducing into the subterranean formation a fluid, free of a proppant, such as salt water, fresh water, brine, liquid hydrocarbon, and/or nitrogen or other gases. The proppant-free fluid may further be weighted. In the second step, a proppant laden slurry is introduced into the subterranean formation which contains a relatively lightweight density proppant. Either the fluid density of the proppant-free fluid is greater than the fluid density of the proppant laden slurry or the viscosity of the proppant-free fluid is greater than the viscosity of the proppant laden slurry. The method limits undesirable fracture height growth in the hydrocarbon-bearing subterranean formation during the fracturing.
    • 一种含烃地层的水力压裂方法确保降低地层生产区下方的水流入的电导率。 该方法由两个主要步骤组成。 在第一步中,通过向地层中引入不含支撑剂的流体,例如盐水,淡水,盐水,液态烃和/或氮,或者 其他气体。 不含支撑剂的流体可以进一步加权。 在第二步中,将含有支撑剂的浆料引入包含相对较轻密度的支撑剂的地层中。 无支撑剂流体的流体密度大于负载载体的浆料的流体密度,或者不含支撑剂的流体的粘度大于负载载体浆料的粘度。 该方法在压裂期间限制含烃地层中不希望的裂缝高度增长。
    • 3. 发明申请
    • Method of hydraulic fracturing to reduce unwanted water production
    • 水力压裂方法可减少不必要的水分产生
    • US20050016732A1
    • 2005-01-27
    • US10863731
    • 2004-06-09
    • Harold BrannonWilliam WoodDonald PurvisAllan RickardsChristopher Stephenson
    • Harold BrannonWilliam WoodDonald PurvisAllan RickardsChristopher Stephenson
    • E21B43/26E21B43/267E21B43/00
    • C09K8/68C09K8/64E21B43/261E21B43/267Y10S507/924
    • A method of hydraulically fracturing a hydrocarbon-bearing subterranean formation ensures that the conductivity of water inflow below the productive zone of the subterranean formation is reduced. The method consists of two principal steps. In the first step, a fracture in and below the productive zone of the formation is initiated by introducing into the subterranean formation a fluid, free of a proppant, such as salt water, fresh water, brine, liquid hydrocarbon, and/or nitrogen or other gases. The proppant-free fluid may further be weighted. In the second step, a proppant laden slurry is introduced into the subterranean formation which contains a relatively lightweight density proppant. Either the fluid density of the proppant-free fluid is greater than the fluid density of the proppant laden slurry or the viscosity of the proppant-free fluid is greater than the viscosity of the proppant laden slurry. The method limits undesirable fracture height growth in the hydrocarbon-bearing subterranean formation during the fracturing.
    • 一种含烃地层的水力压裂方法确保降低地层生产区下方的水流入的电导率。 该方法由两个主要步骤组成。 在第一步中,通过向地层中引入不含支撑剂的流体,例如盐水,淡水,盐水,液态烃和/或氮,或者 其他气体。 不含支撑剂的流体可以进一步加权。 在第二步中,将含有支撑剂的浆料引入包含相对较轻密度的支撑剂的地层中。 无支撑剂流体的流体密度大于负载载体的浆料的流体密度,或者不含支撑剂的流体的粘度大于负载载体浆料的粘度。 该方法在压裂期间限制含烃地层中不希望的裂缝高度增长。
    • 7. 发明申请
    • Method of stimulating oil and gas wells using deformable proppants
    • 使用可变形支撑剂刺激油气井的方法
    • US20060151170A1
    • 2006-07-13
    • US11034388
    • 2005-01-12
    • Harold BrannonAllan RickardsChristopher StephensonRussell Maharidge
    • Harold BrannonAllan RickardsChristopher StephensonRussell Maharidge
    • E21B43/267
    • C09K8/80C09K8/805E21B43/267
    • A method of fracturing using deformable proppants minimizes proppant pack damage, without compromising the fracturing fluid's proppant transport properties during pumping, by use of deformable proppants. Selection of proppant is dependent upon the mechanical properties of the formation rock. The strength of the deformable proppant is dependent upon the modulus of the formation rock being treated such that the proppant is capable of providing, at the very least, a minimum level of conductivity in in-situ stress environments. The maximum elastic modulus of the deformable proppant is less than the minimum modulus of the formation rock which is being treated. The method is particularly applicable in fracturing operations of subterranean reservoirs such as those comprised primarily of coal, chalk, limestone, dolomite, shale, siltstone, diatomite, etc.
    • 使用可变形支撑剂进行压裂的方法通过使用可变形的支撑剂,最大限度地减少了支撑剂组件的损伤,而不会在泵送期间损害压裂液的支撑剂输送性能。 支撑剂的选择取决于地层岩石的机械性能。 可变形支撑剂的强度取决于待处理的地层岩石的模量,使得支撑剂能够至少在原位应力环境中提供最小的导电水平。 可变形支撑剂的最大弹性模量小于正在处理的地层岩石的最小模量。 该方法特别适用于主要由煤,白垩,石灰石,白云石,页岩,粉砂岩,硅藻土等组成的地下储层的压裂作业。