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Sources of Drilling Errors and their Control

Drilling errors are frequent but undesirable occurrences in mining operations and are composed of collaring alignment trajectory and length errors Improved drilling accuracy has tremendous monetary benefits in terms of optimum fragmentation reduced dilution get price

Surface exploration drilling checklist

Guidance Note Safety in surface exploration drilling checklist Part 1 The four critical areas 1 Access to drill site Yes/No Action Are the access roads/tracks to the drill site well formed steepness and width? Are roads suitable for the vehicles and machines in use? Is access to the drill site on an exploration or mining licence clearly marked?get price

Beyond MWD

Jul 25 2019Although several oil and gas logging techniques cannot be adapted for mining seismic while drilling (SWD) or using the sound of the drilling bit has no such limitations Furthermore its effectiveness is even more impressive in mining than in oil and gas These errors are typically caused by varying drilling conditions such as WOB get price

Lake Peigneur

The mine was finally closed in December 1986 Since 1994 AGL Resources has used Lake Peigneur's underlying salt dome as a storage and hub facility for pressurized natural gas There was concern from local residents in 2009 over the safety of storing the gas under the lake and nearby drilling get price

Borehole and Drilling problems

Mar 05 2017Equipment related drilling problems Most drilling problems result from unseen forces in the subsurface But the equipment involved can also be a source of problems The integrity of drilling equipment and its maintenance are major factors in minimizing drilling problems get price

What is Air

Because of the simple mechanism removing the samples won't be as complicated as you imagine It will be effortless and error-free Effective Drilling Results in Productive Mining Over the past few years we've seen the constant development of mining industries Thanks to the air-core drilling get price

MINE PLANNING AND SCHEDULING

Aug 30 2011MINE PLANNING AND SCHEDULING SMART PRACTICES FOR IMPROVING SPEED AND ACCURACY TO ACHIEVE OPERATIONAL EXCELLENCE INTRODUCTION Strength of a building depends on its strength of its foundation Same is true for mining as well As the foundation of all mining activity a mine plan most accurately reflects the real-time reality of theget price

Exploration Drilling Method Setup Operation Procedure

DRILLING proceeds in the following manner The driller measures and reports the length of core to the panner This and the depth of casing in the ground are recorded in the log book Water is poured into the casing the spudding lever thrown in the "On" position and the core chopped up get price

Miner

Based on just few hundred block mining don't know why this strange result came out The Diamond Drill is far more expensive but around four times faster EU/Tick A miner with a Mining Drill and OD Scanner will use ~2-3 EU/t A miner with a Diamond Drill and OV Scanner will use ~20-24 EU/t due to the higher cost per tool and faster mining speed get price

7 ways oil and gas drilling is bad for the environment

Aug 09 2019Although the health threats from oil and gas production are very real the federal government continues to push for fossil fuel drilling near communities The city of Bakersfield in California is a sad example of that trend The Trump administration is pushing to open up more than one million acres of land to drilling and fracking in the region get price

HOW TERRAIN FOR DRILLING ENABLES MORE

HOW TERRAIN FOR DRILLING ENABLES MORE ACCURATE DRILLING As the first step in the mining value chain drilling can have a profound impact on the efficiency of every other operation down the line A well-executed drill pattern improves fragmentation while requiring less explosive material Good fragmentation pays off in turn with reduced get price

Integrating the Theory of Sampling into Underground Mine

Errors are generally additive throughout the sampling value chain and generate both monetary and intangible losses The aim is to collect representative samples to accurately describe the material In many mines diamond core drilling and/or reverse circulation (RC) drilling has become important in the grade Minerals 2018 8 232 3 of 45 get price

What Are the Pros and Cons of Fossil Fuels?

Nov 22 2018Con Bad for Humans and Animals Issues of public health have been raised in countries where exploration and drilling are frequent Diseases such as asthma lung cancer allergies and chronic coughing have been attributed to the inhaling of gases resulting from combustion of fossil fuels get price

Everything you need to know about Bitcoin mining

This provides a smart way to issue the currency and also creates an incentive for more people to mine Bitcoin is Secure Bitcoin miners help keep the Bitcoin network secure by approving transactions Mining is an important and integral part of Bitcoin that ensures fairness while keeping the Bitcoin network stable safe and secure Linksget price

Drilling

The basic drilling process is simple a rotating steel bit fixed to the bottom of a string of pipe bores its way into the Earth's crust Drilling time depends on the depth and difficulty of reaching the pool Shallow wells of a few hundred metres in depth can be drilled in as little as a day while others thousands of metres deep may take several weeks to reach depth get price

Mining

Today computers are key to efficient and profitable mining operations JLT rugged devices are tried and tested worldwide in environments where only the toughest survive They can be used in almost any mining vehicle or drilling machine from draglines dozers graders and haulers to supervisors' vehicles get price

Types of Drilling Methods used in Mining

It has been adopted for drilling upto a depth of 3000 m and hole diameter upto 200 mm Drilling upto such large depths is not required in coal mining areas where the maximum drilling depth is upto 1000 m as coal mines are rarely deeper than that get price

Drilling of Shotholes

Drilling of Shotholes As regards safe blasting operations the drilling of the shotholes is probably the most important factor as it is the initial operation and inaccuracies and issues at this stage can cumulatively affect the blast Activities prior to commencing drilling operationsget price

What is grade control and how can it save you time?

Aug 14 2015Drilling machinery provides the operator with real-time grade guidance while they are drilling What this means is that they are given information about the desired depth slope and alignments (which was traditionally given to them by a specialist inspecting the site) Drilling samples are sent to laboratories for geologists to access the grade get price

What is grade control and how can it save you time?

Aug 14 2015Drilling machinery provides the operator with real-time grade guidance while they are drilling What this means is that they are given information about the desired depth slope and alignments (which was traditionally given to them by a specialist inspecting the site) Drilling samples are sent to laboratories for geologists to access the grade get price

Coal mining

Coal mining extraction of coal deposits from the surface of Earth and from underground Coal is the most abundant fossil fuel on Earth Its predominant use has always been for producing heat energy It was the basic energy source that fueled the Industrial Revolution of the 18th and 19thget price

Navigating the Bumps in the Road

Navigating the Bumps in the Road The Trade‐offs in Drilling the "Perfect Horizontal Well"™ April 30 2014 HorizontalSI LLC 2014 Page7 Focus on Stratigraphy TSP modeling • What exactly is True Stratigraphic Position (TSP) modeling o Relating TSP in a 2D graphical domainget price

Offshore Drilling Pros and Cons

Offshore drilling is a method of extracting petroleum from beneath the sea It has created quit a bit of controversy claims have been made that it is a detriment to our environment and life in the ocean The petroleum that is pulled from the earth is used for all sorts of different fueling purposes and is very important to our economy get price

Drill and Blast Performance Evaluation at the Obra Pit of

Eshun P A Afum B O and Boakye A (2016) "Drill and Blast Performance Evaluation at the Obra Pit of Chirano Gold Mines Ltd Ghana" Ghana Mining Journal Vol 16 No 2 pp 28 35 Abstract This paper investigates the causes of inefficient fragmentation and formation of toes in the Obra pit of Chirano Gold Minesget price

I UNDERGROUND BLASTING

UNDERGROUND BLASTING TUNNELING There are two reasons to go underground and excavate i to use the excavated space e g for storage transport etc ii to use the excavated material e g mining and quarrying operations In both cases tunneling forms an integral part of the entire operation The main difference between tunnel blasting and benchget price

Surface exploration drilling checklist

Guidance Note Safety in surface exploration drilling checklist Part 1 The four critical areas 1 Access to drill site Yes/No Action Are the access roads/tracks to the drill site well formed steepness and width? Are roads suitable for the vehicles and machines in use? Is access to the drill site on an exploration or mining licence clearly marked?get price

Calculation of Ore Tonnage Grade from Drill hole Samples

Calculation of Ore Tonnage Grade from Drill hole Samples the calculated from the actual would not be as great as the off-check between Figs 1 and 2 on account of compensating errors Neither in general churn drilling would many prisms develop as scalene as in Fig 2 but it seems that a method should not be used that can give results get price

Automation Remote Mining

Hetronic Australia has a new range of IECapproved radio remote controls for drill rigs and mining equipment working in hazardous [Australian defined zone 1 and 2 explosive areas] The range is said to incorporate innovative technology that raises the bar for safety and efficiency in mining and drilling equipment operations "The transmitter get price

Ghana Mining Journal

It is therefore recommended that in order to reduce excessive deviations in the drilling parameters periodic training of operators must be conducted supervision of drilling and blasting operations must be enhanced and inclinometers should be used during drilling activities to ensure the accuracy and precision of all blast holes get price

Underground Drilling

In this month's Spotlight Feature Article from the pages of the June 2012 issues of International Mining Editor Paul Moore reports that Underground Drilling remains a challenging environment so continued improvements from key machine and component suppliers continues to help mines improve efficiency particularly as operations go deeper get price