12. (10pts) Calculate the Dogleg Severity (DLS) between the following two survey
ID: 296095 • Letter: 1
Question
12. (10pts) Calculate the Dogleg Severity (DLS) between the following two surveys in the curve of a 3-D arc. Survey B INC (N) 12.2 deg Survey A deg AZM (e) 227.3 deg 5906 5905.6 INC (a)7.8 AZM (EN) 234.1 deg 5951 MD (ft) TVD (ft) MD (ft TVD (ft) 5949.9 13. (10pts) What location in the wellbore was Survey B taken? (ie. vertical, curve, tangent, lateral) 14. (15pts) Research modern Rotary Steerable Systems (RSS) on the market. a. In 1-2 paragraphs, explain the product(s) you found, who the service company is that provides this tool include how it steers the bit, and what are some pros/cons to the tool?Explanation / Answer
Formula : Dogleg severity (DLS) = {cos-1 [(cos I1 x cos I2) + (sin I1 x sin I2) x cos (Az2 – Az1)]} x (100 ÷ MD)
given.
DLS =
MD = 5949.9-5905.6=44.3
I1 = 7.8 degrees
I2 = 12.2 degrees
Az1= 227.3
Az2 = 234.1
Ans : Dogleg severity (DLS) = {cos-1 [(cos 7.8 x cos 12.2) + (sin 7.8 x sin 12.2) x cos (234.1 – 227.3)]} x (100 ÷ (5949-5905.6))=
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