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You are here: Home » News » Classification and analysis on complex cases and accidents in geological drilling holes

Classification and analysis on complex cases and accidents in geological drilling holes

Views:0     Author:Site Editor     Publish Time: 2017-07-17      Origin:Site

In recent years,the number of geological drillig hole accidents has declined.Howerer,due to the changes in technical and economic conditions,the geological drilling applications and scope have expanded with the increasing of drilling depth and the complicated downhole situation.Once downhole accident occures,the construction becomes even harder.It is necessary to sort out the comples cases and the types of accident in drilling hole as soon as possible and establish the technical rules for the downhole accident prevention and treatment to promote the development and standardization management of the downhole accident prevention and treatment.There are many kinds of complicated case in the geological drilling hole,such as drilling leakage/water gushing,bore hole bending,borehole temperature anomaly,borehole diameter reduction/expansion,hole collapse/blockage,hole sedimentation,foreign matter in hole and other abnormal situations in hole.The types of accidents in geological drilling holes mainly include drilling tool accidents,coring accidents and other accidents,burial drilling accidents,bit burnt accisdents,casing accidents,logging accidents,coring accidents and other accidents.there are freat technological differences between geological drilling and oil and gas drilling,the complex cases in holes and accident types are also different,for geological drilling,the types of accident in oil and gas drilling can not be applied mechanically,but the advanced technology and management ideas of down hole accidents prevnetion and treatment in oil and gas drilling industry should be learned.

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Casing Shoe Bit

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wireline double tube core barrel

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Diamond Core Drilling Rig Machine


Wuxi Geological Drilling Equipment CO., LTD
Tel:+86-510-81631009
Fax:+86-510-81631009
Mob:+8615261631775
Add: No122 Xizhang Road,Gushan Town,Jiangyin City,Jiangsu Province
E-mail: xizuanmandy@gmail.com
website: http://www.chinaxizuan.com



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