초록 ▼

A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator forms a high-pressure gas, which includes steam, that expands to stress and fracture the formation. Suit

A device for perforating and fracturing a formation in a single trip includes shaped charges and a volume of a gas generator. When activated by detonation of the shaped charges, the gas generator forms a high-pressure gas, which includes steam, that expands to stress and fracture the formation. Suitable gas generating materials include hydrates and hydroxides. Other materials that can be employed with the gas generator include oxidizers and material such as metals that increase the available heat for the activation of the gas generator.

대표청구항 ▼

What is claimed is: 1. A method for perforating and fracturing a formation, comprising:positioning a gas generator internal to a charge tube and external to a plurality of shaped charges affixed to the charge tube;initiating a detonation of the plurality of shaped charges;creating a plurality of per

What is claimed is: 1. A method for perforating and fracturing a formation, comprising:positioning a gas generator internal to a charge tube and external to a plurality of shaped charges affixed to the charge tube;initiating a detonation of the plurality of shaped charges;creating a plurality of perforating jets for penetrating the formation to form perforations in the formation;releasing thermal energy by the detonation of the plurality of shaped charges;creating a high-pressure gas by using carbon, the thermal energy released by the detonation of the plurality of shaped charges, and the gas generator; andstressing the perforations using the high-pressure gas.