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THE RESEARCH AND APPLICATION OF FOAM UNDERBALANCED DRILLING FLUID

Shen Ruichen

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Abstract

Foam drilling fluid has an obvious effect in drilling well,completion and production operations that can easily achieve underbalanced pressure at the bottomhole.Through research and evaluation of foam drilling fluid in lab.,the paper screened out new high effect foamer foam stabilizer,shale inhibitor,then gave out the formula of foam drilling fluid used in high temperature condition.Through field application in well-Yi51,the performance of the foam drilling fluid could keep well in the well bottom hole with 3000m depth and 110℃ temperature.

About this research paper

What this paper is about

Foam drilling fluid has an obvious effect in drilling well,completion and production operations that can easily achieve underbalanced pressure at the bottomhole.Through research and evaluation of foam drilling fluid in lab.,the paper screened out new high effect foamer foam stabilizer,shale inhibitor,then gave out the formula of foam drilling fluid used in high temperature condition.Through field application in well-Yi51,the performance of the foam drilling fluid could keep well in the well bottom hole with 3000m depth and 110℃ temperature.

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Method / approach

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Available abstract

Foam drilling fluid has an obvious effect in drilling well,completion and production operations that can easily achieve underbalanced pressure at the bottomhole.Through research and evaluation of foam drilling fluid in lab.,the paper screened out new high effect foamer foam stabilizer,shale inhibitor,then gave out the formula of foam drilling fluid used in high temperature condition.Through field application in well-Yi51,the performance of the foam drilling fluid could keep well in the well bottom hole with 3000m depth and 110℃ temperature.

Key concepts: Underbalanced drilling, Drilling fluid, Petroleum engineering, Drilling, Oil shale, Foaming agent, Lost circulation, Stabilizer (aeronautics)

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