Directinal Drilling Technology

8/15/2019 Directinal Drilling Technology

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Introduction toIntroduction to

DirectionalDirectional

DrillingDrillingKhalifah Al-AmriKhalifah Al-Amri

Senior Drilling & WorkoverSenior Drilling & WorkoverEngineerEngineer


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OutlineOutline

De nitionDe nitionWhat Are Directional Wells ?What Are Directional Wells ?

Directional Well TypesDirectional Well TypesWhy Drill Directionally?Why Drill Directionally?Planning A Directional Well PathPlanning A Directional Well Path

o! To Drill Directionally?o! To Drill Directionally?ori"ontal Drillingori"ontal Drilling#omple$ Wells#omple$ Wells


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DefnitionDefnition

Directional %rilling is the science ofDirectional %rilling is the science of

%eviating a !ell ore along a%eviating a !ell ore along aplanne% co'rse to a s' s'rfaceplanne% co'rse to a s' s'rfacetarget !hose location is a giventarget !hose location is a given

lateral %istance an% %irection fromlateral %istance an% %irection fromthe vertical(the vertical(


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What Are Directional What Are Directional Wells ? Wells ?

Directional !ells areDirectional !ells are%eviate% from vertical%eviate% from vertical)straight*)straight*

Directional !ells areDirectional !ells are%rille% !ith intentional%rille% !ith intentionalcontrol to hit a pre-control to hit a pre-%etermine% target+%etermine% target+

inclination )angle*inclination )angle*a"im'th )%irection*(a"im'th )%irection*(

Think ,-D !hen %irectionalThink ,-D !hen %irectional


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Vertical Type Slant (J) Type

“S” Type Horizontal Type

Directional Well TypesDirectional Well Types


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Inaccessible Locations

Salt Dome Drilling Fault Controlling

Sidetracking

Why Drill Directionally? Why Drill Directionally?


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Why Drill Directionally? Why Drill Directionally?


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Planning A DirectionalPlanning A Directional Well Path Well Path

Kick O PointKick O PointBuild Up ateBuild Up ate

A!i"uthal A!i"uthalDirectionDirectionInclination AngleInclination AngleTrue #ertical DepthTrue #ertical Depth$easured Depth$easured Depth%ori!ontal%ori!ontalDisplace"entDisplace"ent

TVD EOWMD

KOP

HD

Inc

0 N

Dir


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%o& To Drill%o& To DrillDirectionally?Directionally?

Sli%e & otate .o%eSli%e & otate .o%eDo!nhole .otorDo!nhole .otor/ent S'/ent S'

0i$e%0i$e% A%1'sta le A%1'sta le

S'rveying ToolS'rveying Tool

.e%ia of.e%ia ofTransmissionTransmission


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%ori!ontal Drilling%ori!ontal Drilling

Types o' %ori!ontalTypes o' %ori!ontal Wells( Wells(

)ong adius *+,-.,/01123)ong adius *+,-.,/01123$ediu" adius *.,-$ediu" adius *.,-41,/0112341,/011235hort adius *41,-5hort adius *41,-61,/0112361,/01123

Ultra 5hort adius *61,-Ultra 5hort adius *61,-+11,/01123+11,/01123


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VerticalWells

HorizontalWells

WaterConing

Gas

Oil

Water

Gas Coning

Applications: Gas and Water Coning:

Longer horizontal drain hole increases theexposure o the pay!zone

Allo"s a higher production rate at lo"erdra"do"n pressure resulting in less coning


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Other $a7or Applications(Other $a7or Applications($a8i"u" reser9oir e8posure$a8i"u" reser9oir e8posure:aturally 'ractured tight reser9oirs:aturally 'ractured tight reser9oirsThin dry reser9oirsThin dry reser9oirs)ess &ells needed to de9elop a feld



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;o"ple8 Wells;o"ple8 Wells

Stacke% 2ateralsStacke% 2aterals


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0ish one Wells0ish one Wells


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Stacke% 0ish oneStacke% 0ish oneWellsWells


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.'ltiple-/ranch.'ltiple-/ranch

.'ltilateral Wells.'ltilateral Wells

Directinal Drilling Technology

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