Methods of combating production problems in wells containing defective gravel packs
AssigneeHalliburton Company
InventorsStephen C. Young, Ronald R. Faul, Kent A. Gray
Life of this patent
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Abstract
Methods of combating production problems in wells containing defective gravel packs are provided. The methods basically comprise forming at least one perforation in the well bore extending from the well bore through the defective gravel pack and into the producing formation, forming at least one fracture containing proppant material in the formation communicating with the perforation and consolidating the proppant material in the fracture.
Claims20
A method of stimulating production or preventing sand migration, or both, into a well bore from a hydrocarbon producing formation penetrated by the well bore, the well bore being communicated with the formation by way of a defective gravel pack, comprising the steps of:
- forming at least one fracture containing proppant material in said formation by pumping a fracturing fluid having proppant material suspended therein through said gravel pack and into said formation at a rate and pressure such that said formation is fractured and said proppant material is deposited in said fracture;
- and
- consolidating said proppant material and said gravel pack.
A method of stimulating production or preventing sand migration, or both, into a well bore from a hydrocarbon producing formation penetrated by the well bore, the well bore being communicated with the formation by way of a defective gravel pack, comprising the steps of:
- plugging said defective gravel pack whereby said well bore is isolated from said producing formation;
- forming at least one perforation in said well bore extending from said well bore through said gravel pack and into said producing formation;
- forming at least one fracture containing proppant material in said formation communicating with said perforation;
- and
- consolidating said proppant material.
A method of stimulating production and preventing sand migration into a well bore from a hydrocarbon producing formation penetrated by the well bore, the well bore having casing cemented therein, perforations extending through the casing and cement into the formation, a defective gravel pack including a sand screen positioned adjacent to the perforations, and a production tubing string connected to the sand screen of the gravel pack, comprising the steps of:
- plugging said defective gravel pack whereby said well bore is isolated from said formation by pumping a fine particle size cement slurry into said gravel pack and into said perforations and allowing said cement slurry to set therein;
- forming a plurality of perforations through said sand screen, said plugged gravel pack, said casing and cement into said producing formation;
- forming at least one fracture containing proppant material in said formation communicating with said perforations;
- and
- consolidating said proppant material.
Dependencies are inferred from the claim text.