Hydraulic fracturing method
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SCHLUMBERGER TECH LTD BV
- Publication Date
- 2006-02-01
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The present invention relates generally to a technique for hydraulic fracturing in subterranean formations, and in particular to a technique for optimizing the conductivity of fractures, especially in highly permeable formations. Methods and Apparatus. Background technique
[0002] Hydrocarbons (oil, natural gas, etc.) are obtained from subterranean geological formations (ie, "reservoirs") by drilling a well that penetrates a hydrocarbon-bearing formation. This method provides a localized flowpath for hydrocarbons to reach the surface. In order to "produce" hydrocarbons, ie, hydrocarbons from the formation into the wellbore (and eventually to the surface), there must be a sufficiently unobstructed flow path from the formation to the wellbore.
[0003] Hydraulic fracturing is the primary means of increasing the productivity of a well by laying or extending the passage from the wellbore to the reservoir. This operation essentially works by hydraulical...