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Drilling Fluid Technology of Well Xuwen-X3

Liang Ding

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Abstract

Well Xuwen-X3 is a key exploration well of SINOPEC,and it is a three intervals four targets high inclinationdirectional well with the total depth 6,010 m and highest temperature 211 ℃.Severe mud loss is encountered when drillingin Weizhou formation with many micro-fractures.Through laboratory experiments,the polysulfonate water base drillingfluid system,can be used as high as 200 ℃,is developed to overcome some downhole problems such as borehole cleaning,lubricating and wellbore stability,and no pipe sticking happened even the drilling tool stayed in hole for over 70 hours.

About this research paper

What this paper is about

Well Xuwen-X3 is a key exploration well of SINOPEC,and it is a three intervals four targets high inclinationdirectional well with the total depth 6,010 m and highest temperature 211 ℃.Severe mud loss is encountered when drillingin Weizhou formation with many micro-fractures.Through laboratory experiments,the polysulfonate water base drillingfluid system,can be used as high as 200 ℃,is developed to overcome some downhole problems such as borehole cleaning,lubricating and wellbore stability,and no pipe sticking happened even the drilling tool stayed in hole for over 70 hours.

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Available abstract

Well Xuwen-X3 is a key exploration well of SINOPEC,and it is a three intervals four targets high inclinationdirectional well with the total depth 6,010 m and highest temperature 211 ℃.Severe mud loss is encountered when drillingin Weizhou formation with many micro-fractures.Through laboratory experiments,the polysulfonate water base drillingfluid system,can be used as high as 200 ℃,is developed to overcome some downhole problems such as borehole cleaning,lubricating and wellbore stability,and no pipe sticking happened even the drilling tool stayed in hole for over 70 hours.

Key concepts: Borehole, Drilling fluid, Wellbore, Petroleum engineering, Drilling, Geology, Mud logging, Completion (oil and gas wells)

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