Deepwater test well completion tubular column and setting and printing method thereof

Abstract

The invention discloses a deepwater test well completion tubular column and a setting and printing method thereof. The tubular column consists of a packer (1), a setting tool assembly (10), a positioning joint (2), a long tubular column (3), a suspender assembly (4) and a feeding tubular column (5). The setting and printing method comprises the following steps: S1: suspending and connecting tubular columns into a well in sequence; S2: setting and suspending the suspender assembly to a position behind the well, closing a blowout preventer unit and printing a gate plate, electrically measuring and correcting depth; S3: lifting the tubular columns to the setting position of the packer according to the depth corrected results, adding balls to seal the packer, and falling; and S4: drilling. The tubular column disclosed by the invention can be used for realizing two purposes of printing the blowout preventer unit and sealing the packer, so that the operation time is saved; the suspender is set and suspended to a position behind the well, and then the depth correcting operation is performed, so that the influences of tidal range on setting depth of the deepwater packer are relatively small, accurate depth correction of the tubular column can be realized, and the setting precision of the packer can be improved to be within 0.3m during the deepwater operation period.

Description

technical field [0001] The invention belongs to the technical field of offshore deepwater completion testing, and specifically refers to a deepwater testing completion pipe string and a method for setting and printing. Background technique [0002] At present, in offshore deepwater drilling and completion operations at home and abroad, the common process of offshore deepwater completion test printing and packer setting is: divide the string into two trips, one trip to print the tubing string, and one trip to lower the packer string. The production cost is very high due to the long operation time due to the two trips and the expensive deepwater drilling rig. In addition, since the setting depth of deepwater packers is greatly affected by tidal range, the setting accuracy of existing packers is relatively poor. [0003] The purpose of the foregoing discussion is to introduce the reader to various aspects of the technology that may be related to various aspects of the present ...

AI Technical Summary

Problems solved by technology

Very high production costs due to long operating times due to two string trips and expensive deepwater rigs

In addition, since the setting depth of deepwater packers is greatly affected by tidal range, the setting accuracy of existing packers is relatively poor

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