解决方案

Cementing System

Upper Completion System

Staged Fracturing System

Sand Control System

Production Enhancement Systems

CCUS

Sand Control Process with One Layer of Gravel Filling at A Time

One layer of gravel filling is achieved through a single trip of the pipe column; The inner and outer pipe columns are assembled at the wellhead according to the piping schedule and delivered to the sand control section by the drill pipe; After pitching the ball and sealing the top packer (without the need for backwashing the ball), press and lift the string, and release the service tool; The external sand control pipe column is fixed in the sand control well section, and the setting position of the packer is the filling operation position of the service pipe column; After the service tool is released, the filling operation can be carried out with an overpressure pipe column of 5-10t.

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A multi-layer Gravel Filling Sand Control Process

Multiple layers of gravel filling can be achieved through a single pipe string; The process column consists of an outer column (sand control column) and an inner column (filling service column); The inner and outer pipe columns are assembled at the wellhead according to the "piping table" and delivered to the sand control well section by the drill pipe; After setting the top packer, the external sand control pipe column is fixed in the sand control well section; After the hydraulic release of the inner column, it separates from the outer column; Lift up the filling service tool and complete multiple layers of filling from bottom to top. After filling is completed, lift out all service columns.

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Gravel Filling and Sand Control Process for Barehole Horizontal Wells

Barehole horizontal well gravel filling process is one of the key technologies for sand control in barehole horizontal wells; during the whole construction period, the upper annulus of the top packer is always connected with the barehole, thus ensuring the stability of the well wall and effective sand control operation. The gravel-filled sand control tubular column of bare eye horizontal wells includes inner tubular column and outer tubular column, and the inner and outer tubular columns can work together to realise the reverse cycle pickling operation in place of mud filling; in the process of the operation, the tubular column is lifted up and lowered down, and the load indicator is used in conjunction with the locating hoop to realise the positioning, which is easy to operate and has the characteristics of accurate positioning. Translated with www.DeepL.com/Translator (free version)

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Multi-layer Simple Anti-sanding Process

Multi-layer simple sand control process is a layered sand control process that does not require gravel filling in the casing. The simple sand control tubular column includes inner and outer tubular columns, which are assembled at the wellhead in accordance with the "Tubing Table" and delivered to the sand control well section by the drilling pipe; after pitching and seating the top packer, the tubular column will be pressurised, and the internal service tubular column will be discharged; after lifting up the inner tubular column, and seating all the segregation packers in turn from the bottom to the top, the drilling will be started to complete the sand control operation. The sand control operation is completed.

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Bare Eye Simple Anti-sanding Process

Bare-eye simple sand control process is bare-eye non-gravel filling sand control process, bare-eye simple sand control service tubular column includes inner tubular column and outer tubular column, which can be applied in large inclined wells, horizontal wells and other complex structure wells. The simple structure and convenient operation of the tubular column greatly reduce the difficulty of the operation, save the cost of the operation and increase the production capacity of the well.

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