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AssigneeBaker Hughes Incorporated
InventorsMichael H. Johnson, Hang Nguyen, Lewis B. Ledlow
Estimating the term…
A two-fluid method for fracturing a subterranean formation to increase the production of fluids from a well therein has been discovered. In a typical operation, a fluid pad is injected into the well which essentially simultaneously fractures the formation and forms a low permeability filter cake on at least part of the fracture. A proppant transport fluid containing proppant is then injected to prop open the fracture once the pressure is decreased. The filter cake is removed to permit production to begin. Although many conventional fluids may be used for the fluid pad, one preferred fluid pad uses graded calcium carbonate particle sizes and a modified lignosulfonate as a filter control agent. Optionally, a thixotropic polymer may be present as a viscosifier.
A method for hydraulically fracturing and propping a subterranean formation to increase the production of fluids from a well therein comprising the steps of:
A method for hydraulically fracturing and propping a subterranean formation to increase the production of fluids from a well therein comprising the steps of:
A method for treating a subterranean formation having a well therein and fractures extending from the well into the subterranean formation, comprising injecting a fluid pad into the well to form a low permeability filter cake on at least part of the fractures where the fluid pad comprises:
Dependencies are inferred from the claim text.