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Analysis and treatment of complex well conditions caused by cable falling into the well

Song Haichao （ Engineering Technology Branch of CNOOC Energy Development Co., Ltd ）

https://doi.org/10.37155/2811-0609-0402-67

Abstract

During the cross layer static pressure test of the cable passing through the production well, a tool string got stuck and the cable was cut off at the wellhead. After multiple treatments

Failed to successfully salvage the cable fish; During the operation of replacing the pipe column, the pipe column could not be lifted. After two years and three attempts, the operation was unsuccessful. Currently, the well is experiencing difficulties due to testingCable cutting, the pipe column cannot be lifted, and the current fish top position is near the Y joint, affecting production. To increase oil storage production, this article focuses on cable fishing and pipe columnsConduct in-depth analysis of the encounter card, process new tools to handle problems separately, salvage the pipe column, and achieve the resumption of production of the well.

Keywords

Cable; Encountering cards; Production pipe column

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References

[1] Editorial Committee of "Completion Manual for Offshore Oil and Gas Fields" for offshore oil and gas field completion
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[2] Q/HS14010-2017 Quality Control Standards for Offshore Drilling and Completion Engineering
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Writing Guide [S]

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