How do you calculate inclination and azimuth?
Tangential Method Calculation
- Survey 1. Depth = 3500 ft. Inclination = 15 degree (I1) Azimuth = 20 degree (Az1)
- Survey 2. Depth = 3600 ft. Inclination = 25 degree (I2) Azimuth = 45 degree (Az2)
- Solution: MD = 3600 – 3500 = 100 ft. As per the formulas above, you will get answers as listed below; North = 29.88 ft.
What is drilling formula?
In this section you find the drilling formulas and definitions needed for your drilling operations, such as cutting speed, feed per revolution and specific cutting force….Drilling formulas and definitions.
| Metric | Imperial |
|---|---|
| Penetration rate, (vf) m/min | Penetration rate, (vf) inch/min |
| Feed per revolution, (fn) mm/rev | Feed per revolution, (fn) inch/rev |
How do you find the vertical section in directional drilling?
Vertical Section is calculated using the following equations:
- Closure Azimuth = ArcTAN [ ]
- Azimuth Difference = Closure Azimuth – Vertical Section Azimuth.
- Closure Distance = √ Y² + X² (i.e. The length of the hypotenuse of a right angled triangle, with two sides of length x and y (square root of x2 + y2).
What is inclination in directional drilling?
Azimuth is typically measured clockwise from north. The inclination is the deviation of the wellbore from the vertical. The azimuth and inclination define the coordinates of the wellbore along its length, usually relative to the location of the wellhead. Tool face quantifies the direction in which the tool is pointing.
What is drift angle in directional drilling?
The build-up rate is often termed the dogleg severity (DLS). – Tangent angle of the well (or drift angle) is the inclination (in degrees from the vertical) of the long straight section of the well after the build-up section of the well.
How do you calculate spindle speed?
The following equation is used to calculate spindle speed: rpm = sfm ÷ diameter × 3.82, where diameter is the cutting tool diameter or the part diameter on a lathe in inches, and 3.82 is a constant that comes from an algebraic simplifica-tion of the more complex formula: rpm = (sfm × 12) ÷ (diameter × π).
What is the formula to calculate the speed of drill?
vf=fr×n=0.2×1350=270mm/min The spindle feed is 270mm/min.
How is RPM calculated in drilling?
R.P.M. = (3.8197 / Drill Diameter) x S.F.M….Feeds and Speeds – Formulas.
| R.P.M. = Revolutions Per Minute | I.P.R. = Inches Per Revolution |
|---|---|
| S.F.M. = Surface Feet Per Minute | Feed Stroke = Drill Depth + 1/3 |
What is closure in directional drilling?
Simply stated, the closure is the shortest distance between the surface location and the horizontal projection of the last survey point. The closure is always a straight line since that represents the shortest distance between two points.
What is TVD in directional drilling?
The vertical distance from a point in the well (usually the current or final depth) to a point at the surface, usually the elevation of the rotary kelly bushing (RKB).