Title:
FULL-BORE AND INFINITE-STAGE SEGMENTED-FRACTURING SLIDING SLEEVE BASED ON INTELLIGENT LABEL CONTROL, AND IMPLEMENTATION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/160732
Kind Code:
A1
Abstract:
A full-bore and infinite-stage segmented-fracturing sliding sleeve based on intelligent label control, including full-bore and infinite-stage segmented-fracturing sliding sleeves (2) and intelligent labels (1) for actuating the sliding sleeves. The full-bore and infinite-stage segmented-fracturing sliding sleeves are lowered into a borehole along with a casing, and well cementation is performed, wherein each fracturing sliding sleeve corresponds to one downhole target fracturing segment; and the intelligent labels are delivered into the casing through the mouth of a well, the power for the intelligent labels to advance in a shaft is provided in a pumping mode, and each intelligent label performs automatic identification, is clamped and set in the fracturing sliding sleeve at a target segment, and activates the sliding sleeve with pressurization by a pump truck. The activation of the fracturing sliding sleeve at each segment corresponds to one intelligent label, and the activation of the fracturing sliding sleeve at each segment and the fracturing construction of each segment are completed stage by stage by repeating label delivery and fracturing operations from back to front. After all segments are fractured, the intelligent labels are completely dissolved under soaking in a fracturing fluid.
Inventors:
SONG WENPING (CN)
ZHANG DUOLI (CN)
YANG JUN (CN)
LI FENGLONG (CN)
WANG HUAPENG (CN)
ZHANG DUOLI (CN)
YANG JUN (CN)
LI FENGLONG (CN)
WANG HUAPENG (CN)
Application Number:
PCT/CN2023/090719
Publication Date:
August 31, 2023
Filing Date:
April 26, 2023
Export Citation:
Assignee:
HARBIN HITTOP TECH CO LTD (CN)
International Classes:
E21B34/14; E21B34/08; E21B43/26
Domestic Patent References:
| WO2021142878A1 | 2021-07-22 |
Foreign References:
| CN113404477A | 2021-09-17 | |||
| CN114517660A | 2022-05-20 | |||
| CN110593837A | 2019-12-20 | |||
| CN106640014A | 2017-05-10 | |||
| CN105822278A | 2016-08-03 | |||
| CN113356794A | 2021-09-07 | |||
| CN110529073A | 2019-12-03 | |||
| CN113279725A | 2021-08-20 | |||
| CN110080719A | 2019-08-02 | |||
| CN113719257A | 2021-11-30 |
Attorney, Agent or Firm:
HEFENG SCIENCE & TECHNOLOGY SERVICE CO., LTD (CN)
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