Ecuaciones de perforacion
Páginas: 2 (266 palabras)
Publicado: 24 de febrero de 2012
Planning Direction of wellbore using single equation methods Wiggins
TVD1 r1
I TVD2
TVD3
I
X
TVD4
I
r2
DEP2
DEP3
DEP4
Survey using Radius ofcurvature methods
T
T
T
T
T
T
Survey using Minimum of curvature Methods
In radians
In radians
Inradians
In radians
In degree In degree
Closure assuming wellhead coordinate are 0.00 N and 0.00 E
Vertical section
Note: When Closure direction of survey has been settled, use the value of given Closure Direction to find Vertical Section (you will find negative value ofVertical Section in Target Depth) Dogleg severity
an inclination of 5°.
This equation is simple but not very accurate below
At the Report you ll have to plotted
Horizontal view which is a plot of Vertical Section to True Vertical Depth Plane view which is a plot of East to North Inclination Changewhich is a plot of Inclination to True Vertical Depth Azimuth Change which is a plot of Azimuth to True Vertical Depth Dogleg Severity which is a plot of Dogleg Severity to True VerticalDepth
Nomenclature Br DEP I I1 I2 L MD = Build rate, degrees/ft = Horizontal departure, ft. = Inclination or hold angle, degrees = Inclination angle at upper survey point, degrees =Inclination angle at lower survey point, degrees = Length of the first hold section, ft = Measured depth, feet.
R r1 r2 TD TVD X
= Total radius of curvature, ft = Radius of curvaturein the first build section, ft = Radius of curvature in the drop section, ft = Target depth, feet. = True vertical depth, ft. = Tangent calculation = Change in parameter value
TVD1 r1
I TVD2
TVD3
I
X
TVD4
I
r2
DEP2
DEP3
DEP4
Survey using Radius ofcurvature methods
T
T
T
T
T
T
Survey using Minimum of curvature Methods
In radians
In radians
Inradians
In radians
In degree In degree
Closure assuming wellhead coordinate are 0.00 N and 0.00 E
Vertical section
Note: When Closure direction of survey has been settled, use the value of given Closure Direction to find Vertical Section (you will find negative value ofVertical Section in Target Depth) Dogleg severity
an inclination of 5°.
This equation is simple but not very accurate below
At the Report you ll have to plotted
Horizontal view which is a plot of Vertical Section to True Vertical Depth Plane view which is a plot of East to North Inclination Changewhich is a plot of Inclination to True Vertical Depth Azimuth Change which is a plot of Azimuth to True Vertical Depth Dogleg Severity which is a plot of Dogleg Severity to True VerticalDepth
Nomenclature Br DEP I I1 I2 L MD = Build rate, degrees/ft = Horizontal departure, ft. = Inclination or hold angle, degrees = Inclination angle at upper survey point, degrees =Inclination angle at lower survey point, degrees = Length of the first hold section, ft = Measured depth, feet.
R r1 r2 TD TVD X
= Total radius of curvature, ft = Radius of curvaturein the first build section, ft = Radius of curvature in the drop section, ft = Target depth, feet. = True vertical depth, ft. = Tangent calculation = Change in parameter value
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