公开(公告)号：US07207386B2

公开(公告)日：2007-04-24

申请号：US10863731

申请日：2004-06-09

申请人： Harold Dean Brannon ,  William Dale Wood ,  Donald L. Purvis ,  Allan Ray Rickards ,  Christopher John Stephenson

发明人： Harold Dean Brannon ,  William Dale Wood ,  Donald L. Purvis ,  Allan Ray Rickards ,  Christopher John Stephenson

IPC分类号： E21B43/267

CPC分类号： C09K8/68 ,  C09K8/64 ,  E21B43/261 ,  E21B43/267 ,  Y10S507/924

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06367548B1

公开(公告)日：2002-04-09

申请号：US09519064

申请日：2000-03-03

申请人： Donald L. Purvis ,  David D. Cramer ,  David D. Smith ,  Douglas L. Walton

发明人： Donald L. Purvis ,  David D. Cramer ,  David D. Smith ,  Douglas L. Walton

IPC分类号： E21B4325

CPC分类号： E21B43/14 ,  E21B43/25

摘要： Methods and compositions for stimulating multiple intervals in wells by diverting well treatment fluids into multiple intervals by alternately displacing diverting agent from the annulus into a subterranean formation and displacing treatment fluid from a tubing string into the subterranean formation.

摘要翻译： 通过将转移剂从环带交替移位到地层中并将处理流体从管柱移位到地下地层中，通过将井处理流体转移到多个间隔来刺激孔中的多个间隔的方法和组合物。