"Directional drilling apparently allows access to oil and gas deposits up to two miles from the drill point. Political movement emerging in northern Colorado from oil and gas oppositionįor this article, Denver7 aimed to answer one specific question we have received from numerous viewers in Denver, Arvada and even Glenwood Springs.State finds issue at Extraction drill site near Erie, notifies health dept.COGCC report: Initiative 97 would make 85% of non-federal land in Colorado off limits to oil and gas.As people stand up against oil and gas in neighborhoods, Anadarko says sides need to work together.Colorado activists submit signatures for measure to limit fracking.Fact-checking political ads about Proposition 112.Since then dozens of viewers have reached out with more questions and viewpoints that we have shared in several follow-ups. We first took a 360 look when it was a proposed measure and called initiative 97 and most recently when organizers gathered enough signatures to get Prop 112 on the November ballot. The statewide ballot measure to limit drilling in Colorado would increase the setback for new wells to half a mile from homes, schools, and other "vulnerable areas."ĭenver7 has covered this issue extensively and the many perspectives on both sides. To comment on this or other 360 stories, email us at See more 360 stories here.ĭENVER - As Election Day nears, the noise around Proposition 112 is reaching a fever pitch. and French Oil & Gas Industry Association (1990) Directional drilling and deviation control technology.Editor's Note: Denver7 360 stories explore multiple sides of the topics that matter most to Coloradans, bringing in different perspectives so you can make up your own mind about the issues. Technical, T., Astier, B., Baron, G., Boe, J.-C., Peuvedic, J.L.P. (1993) Introduction to directional and horizontal drilling. Richardson, TX: Society of Petroleum Engineers. (2012) Fundamentals of drilling engineering. The build-up rate = q = 1.53 degree/100 ft The measure depth of the well = 10,477.35 ft We can answer in degree/100 ft by multiplied 100 therefore you will get the answer like this. Total MD from the rig to end of the build section = 7000 + 3477.35 = 10,477.35 ftĭetermine build rate via this following equation: You can determine the length of build section via the equation below Therefore, cos (θ) = 3/5 is the right answer for this case.įrom the Equation 1, you will be able to get Rb via the Equation 1
Then you need to check which answer is correct.Ĭos (θ) = 1 is unreal because θ = 0 degree. Use the polynomial relationship to arrange the equation as shown below: Therefore you can change the Equation 5like this: TVD in build section = 10,000 – 7,000 = 3,000 ftĮquation 2 ÷ Equation 1 so you will get like thisĪrrange the Equation 4 and you will get like this:Īccording to the trigonometry relationship The formula for radius build (Rb) and length of hole (L) are listed below respectively
Horizontal directional drilling diagram how to#
Please keep in mind that this diagram I draw with the Power Point so it will not show good proportion but it can give you good idea on how to solve this problem. Calculate the measure depth and build up rate.įirst thing, I would like to draw a trigonometry diagram like this. He intends to achieve a horizontal departure of 1500 ft at the with the TVD at the target point to be 10,000 ft. Wellplanner is planning to design a deep kick-off well with a build section to by pass a salt dome section. I got the question from my friend, Nien, asking me about directional drilling calculation and the question is shown below:
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