Coiled tubing multi-system shale oil reservoir coupling transformation method

The invention relates to the technical field of underground operation, in particular to a coiled tubing multi-system shale oil reservoir coupling transformation method, which comprises the following steps of: 1, mounting a high-pressure pulse jet tool string at the lower end of a coiled tubing, lowe...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: GAO YANRU, ZHAO ZEWANG, PANG DEXIN, GUO XINWEI, WANG LINSHENG, LIU ZHANGZOU, ABULIMITI, ABIB, XIANG XINSHENG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention relates to the technical field of underground operation, in particular to a coiled tubing multi-system shale oil reservoir coupling transformation method, which comprises the following steps of: 1, mounting a high-pressure pulse jet tool string at the lower end of a coiled tubing, lowering the coiled tubing to send the high-pressure pulse jet tool string to a target interval, and then, transferring the high-pressure pulse jet tool string to the target interval; and a nozzle on the high-pressure pulse jet tool string is aligned with a target interval needing to be fractured. Fracturing fluid pumped by a coiled tubing at high pressure is ejected from an underground pulse nozzle to form a pulsating pressure load, and meanwhile, sand-carrying fluid stably pumped into an annular space between the coiled tubing and a casing pipe is subjected to multi-system superposition at a fracturing well section to form an unstable load to act on reservoir rock, so that the rock is cracked and extended at a preset