Method for filling oil-gas well of fractured oil-gas reservoir with isolation particles to reduce water and increase oil production

A method for filling an oil and gas well of a fractured oil and gas reservoir with pack-off particles to reduce water and increase oil production comprises the following steps: (1) injecting a filling liquid carrying pack-off particles into a wellbore and a fracture via a wellhead, until a stratum c...

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Bibliographische Detailangaben
Hauptverfasser: Wang, Hailong, Feng, Guojiang, Zhang, Songmei, Pei, Bailin
Format: Patent
Sprache:eng
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Zusammenfassung:A method for filling an oil and gas well of a fractured oil and gas reservoir with pack-off particles to reduce water and increase oil production comprises the following steps: (1) injecting a filling liquid carrying pack-off particles into a wellbore and a fracture via a wellhead, until a stratum crack/fracture extension pressure is reached or exceeded, or until an injection amount per unit injection pressure is close to zero, or until a preset filling amount of pack-off particles is reached; (2) launching production.