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horizontal drilling patterns in mines

Drilling patterns QueensMineDesignWikiMost blasting patterns and techniques rely on the first sequences of the blast to open ‘a cut’ in the face essentially creating another free face and a route for the rock at depth to escape into. Equipment Utilized. Typically, in todays industry large drill rigs commonly known as “jumbos” are used for drilling Horizontal Drilling an overview ScienceDirect T

Directional Drilling for mineral exploration Boart Long

Directional Drilling. When you need to accomplish more with less, directional drilling can provide greater mineral exploration from one hole and save time and money. Boart Long offers a range of innovative steering/survey tools and continues to explore new ways to help mining operations reduce costs and find mineral resources faster.

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Avoiding Underground Utilities during Horizontal

BEFORE ANY DRILLING OCCURS A CONTRACTOR MUST USE THE STATE'S UTILITY LOCATION SYSTEM Introduction Installing underground utility lines safely using horizontal directional drilling (HDD) equipment prevents the drill from hitting and breaking existing underground utility lines (i.e., electrical, water, sewage, gas, steam, chemical). If the

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UT Admin Code R6493. Drilling and Operating Practices

R649. Natural Resources; Oil, Gas and Mining; Oil and Gas. Rule R6493. Drilling and Operating Practices. As in effect on January 1, . Table of Contents. R64931. Bonding. R64932. Location And Siting of Vertical Wells and Statewide Spacing for Horizontal Wells. R64933. Exception to Location and Siting of Wells. R64934.

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Drilling in mining SlideShare

Apr 07, 20140183;32;Drilling in mining 1. Introduction to Drilling Technology for Surface Mining Prof. K. Pathak Dept. of Mining Engineering, IIT, Kharagpur721302 1 Introduction Drilling is the process of making a hole into a hard surface where the length of the hole is very large compared to the diameter.

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Drilling and blasting powerpoint 2003 SlideShare

Apr 21, 2013;32;DRILLING PATTERNS Selection of drilling pattern varies with the type and size of the drills used, depth of hole, kind of rock, quantity, rapidity of the explosive amp; amount of steaming. 13. BLASTING DEFINITION The process of breaking rocks into smaller pieces by use of explosives. TYPES OF EXPLOSIVES Explosives based on chemical nature

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Drilling patterns QueensMineDesignWiki

Most blasting patterns and techniques rely on the first sequences of the blast to open a cut in the face essentially creating another free face and a route for the rock at depth to escape into. Equipment Utilized. Typically, in todays industry large drill rigs commonly known as jumbos are used for drilling

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(PDF) Drilling and blasting as a tunnel excavation method

in mines is carried out with 5 to 10 drilling patterns for different tunnel sizes (production drifters, haulage drifters, drawpoi nts, ramps etc.) The pattern is finalized at the drilling site.

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Mining Horizontal openings drifts Britannica

Mining Mining Horizontal openings drifts All horizontal or subhorizontal development openings made in a mine have the generic name of drift. These are simply tunnels made in the rock, with a size and shape depending on their usefor example, haulage, ventilation, or exploration. A drift running parallel to the ore body and lying in the footwall is called a footwall drift, and drifts

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Horizontal Drilling an overview ScienceDirect Topics

Applications of inmine horizontal drilling are discussed chronologically for (a) coal mine degasification, (b) gas production from mine shafts, (c) oil production from shallow/depleted oil fields, (d) improved auger mining, and (e) mine water disposal. Coal mine degasification started in 1970s and it is an established practice by now in all gassy mines.

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Designing Blast Patterns Using Empirical Formulas

Empirical formulas that may be applied to drilling and blasting pattern design.. 6 Calculation of burden, B, from equation 1 The Bureau of Mines has been conducting field studies of explosive blast173; showed horizontal bedding without or with conspicuous jointing, fs, faults, caves, and filled joints influence blasting and mining

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Horizontal Drilling and Hydraulic Fracturing Practices

Horizontal drilling rig operating for Woolsey in Kansas Horizontal production facilities on a Woolsey lease in Kansas. the facilities that would be needed for the 4 6+ vertical wells replaced by one horizontal well. As the well is commonly produced by gas lift

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US7513304B2 Method for drilling with improved fluid

A method for improving underground fluid collection and removal. The method includes drilling one well with a vertical section and a horizontal section having main bores and branches. All of the branches are substantially in one horizontal plane except one branch for each main bore. That one branch for each main bore is slope downward towards a common place, where a second vertical well is

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6.1. GENERAL

Many mines and excavation sites still plan their drilling patterns manually, but advanced computer programs are available and widely used. Computer programs make it easier to modify the patterns and fairly accurately predict the effects of changes in drilling, charging, loading and production.

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Title Unconventional Drilling Methods for Unconventional

A single pinnate pattern can be drilled in 4 directions offset by 90 o each to cover an area of up to 1,200 acres (4.87 km2) over 360o. (Figure 2 Quad Pinnate). In the ongoing effort to save drilling cost more advanced horizontal drilling patterns have also been developed.

Horizontal Drilling amp; Directional Drilling Natural Gas Wells

Horizontal drilling has been used to install gas and electric lines that must cross a river, cross a road, or travel under a city. (E) quot;Relief wellquot; for an quot;outofcontrolquot; well Relief well If a well has a problem and begins to flow out of control, it must be sealed at depth or

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(PDF) HORIZONTAL DIRECTIONAL DRILLING NEW ERA FOR

Horizontal directional drilling (HDD) was pioneered in the United States for an innovative road boring contractor who successfully completed a 183 m river crossing using a modified rod pushing a

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Optimization of horizontal well staggered patterns

Nov 21, 20080183;32;Abstract. Staggered linedrive patterns are widely used in oilfields. In this paper, to optimize a staggered pattern of horizontal wells, a 3D problem was divided into two 2D (xy plane and yz plane) problems with the pseudo3D method, conformal transformation and superposition principle.A productivity equation for a horizontal well was deduced, which can be used to optimize the well pattern.

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V2H Vertical to horizontal drilling Mining3

A feat of engineering excellence, the technology sees traditional drill heads replaced with a highpressure jetting system that rapidly creates an extensive pattern of horizontal tunnels for oil and gas to flow directly into a vertical well. Multiple radials can be placed at various depths.

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Types of Drilling Methods used in Mining Boring Mining

ADVERTISEMENTS In this article we will discuss about the types of drilling methods used in mining. The types are 1. Percussive Drilling 2. Rotary Drilling. Method 1. Percussive Drilling In this method which is the est one of drilling, the hole is drilled by striking a number at

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Horizontal Drilling amp; Directional Drilling Natural Gas Wells

Horizontal drilling has been used to install gas and electric lines that must cross a river, cross a road, or travel under a city. (E) quot;Relief wellquot; for an quot;outofcontrolquot; well Relief well If a well has a problem and begins to flow out of control, it must be sealed at depth or the pressure must be relieved. In this situation a

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A Parametric Study on the Benefits of Drilling Horizontal

Horizontal or directional drilling refers to the practice of intentionally deviating a wellbore in a controlled way from its initial path. Under ideal conditions, directional drilling can provide

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Inmine horizontal drilling and applications ScienceDirect

Jan 01, 0183;32;Applications of inmine horizontal drilling are discussed chronologically for (a) coal mine degasification, (b) gas production from mine shafts, (c) oil production from shallow/depleted oil fields, (d) improved auger mining, and (e) mine water disposal. Coal mine degasification started in 1970s and it is an established practice by now in all

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Coal mining Choosing a mining method Britannica

Coal mining Coal mining Choosing a mining method The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many

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Title Unconventional Drilling Methods for Unconventional

A single pinnate pattern can be drilled in 4 directions offset by 90 o each to cover an area of up to 1,200 acres (4.87 km2) over 360o. (Figure 2 Quad Pinnate). In the ongoing effort to save drilling cost more advanced horizontal drilling patterns have also been developed.

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Underground Drilling International Mining

Boart Long Stopemate S36 operating at a mine in Sudbury, Ontario. Horizontal development is common to all underground mines and new technology improvements that help to increase development rates are vital for the industry. Mine Master, the manufacturer of face drilling jumbos including the Face Master 1.4 (very low seams); 1.7 and 2.3 (low

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6.1. GENERAL

Drifting in mines is carried out with 5 to 10 drilling patterns for different tunnel sizes (production drifters, haulage drifters, drawpoints, ramps etc.) The pattern is finalized at the drilling site.Tunnel blasting differs from bench blasting in that tunnels have only

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Dexpan Free Drilling Designs

Well designed hole drilling patterns will minimize consumption of Dexpan174; Silent Cracking Agent by cutting into desired sizes To insure success, Dexpan174; needs Free Space to expand to. Make sure that the rock or concrete has an open face for expansion equal to the drilling depth.

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Drilling Pattern, Blasting Design Types used In U/G mines

Jun 16, 0183;32;In this Post We Cover drilling pattern in underground coal mines and all 7 types of blasting design patterns like wedge cut drilling pattern, pyramid cut drilling pattern, burn cut drilling pattern, cone cut, ring cut drilling pattern, drag cut drilling pattern, fan cut drilling pattern, cormorant cut all of them blasting design.

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Directional Drilling for mineral exploration Boart Long

Directional Drilling. When you need to accomplish more with less, directional drilling can provide greater mineral exploration from one hole and save time and money. Boart Long offers a range of innovative steering/survey tools and continues to explore new ways to help mining operations reduce costs and find mineral resources faster.

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Drilling pattern in underground mining wedge cut

Jan 06, 0183;32;In this video explain the wedge cut pattern which is used in solid blasting. Important questions for mining compition exam https//youtu.be/nfm7rutwzbo*Seco

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Blasting Techniques Used in Underground and Opencast Mines

The pattern of shotholes drilled for solid blasting in coal in galleries of bord and pillar working is 1. Wedge cut, or . 2. Fan cut . Drivage of a narrow gallery in coal without an undercut can be compared with drivage of a drift in stone. Blasting out coal in the centre of the face in the wedge cut pattern gives free face for the remaining coal.

What is horizontal drilling and how does it work

Jul 21, 0183;32;On having two or three sites from horizontal drilling may have the potential to equate its productivity with twenty vertical wells. Such drilling reduces the health impacts on the peoples residing nearby. Implementation of horizontal drilling is benefiting in productivity and creating a safer mining atmosphere. Working of the Horizontal Drilling

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Machine learning applied to drilling in open pit mines

Machine Learning techniques are proposed to identify these patterns. The detection of these geological changes is particularly important in coal mines to stop drilling just before reaching the coal bed. This is to prevent blasting from fracturing the coal bed.

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Directional drilling techniques for exploration inadvance

@article{osti_5303245, title = {Directional drilling techniques for exploration inadvance of mining}, author = {Kravits, S J and Schwoebel, J J}, abstractNote = {Inseam directionally drilled horizontal boreholes have provided effective solutions in underground coal mines for methane and water drainage and inherently provide an excellent tool for coalbed exploration.

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Chapter 8 BLAST DESIGN National Park Service

the shot will allow for an expansion of the drilling pattern, with resultant decrease in overall drilling costs. Improved production rates and consequent cost reduction in digging, hauling, crushing, or moving rock are the major benefits obtained from the efficient application of

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I UNDERGROUND BLASTING Mining and Blasting Weblog

Various drilling patterns have been developed for blasting solid rock faces, such as i. wedge cut or V cut ii. pyramid or diamond cut iii. drag cut iv. fan cut v. burn cut

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Inmine horizontal drilling and applications ScienceDirect

Jan 01, 0183;32;Applications of inmine horizontal drilling are discussed chronologically for (a) coal mine degasification, (b) gas production from mine shafts, (c) oil production from shallow/depleted oil fields, (d) improved auger mining, and (e) mine water disposal. Coal mine degasification started in 1970s and it is an established practice by now in all gassy mines.

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Drilling and blasting

Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation.It is practiced most often in mining, quarrying and civil engineering such as dam, tunnel or road construction.The result of rock blasting is often known as a rock cut.. Drilling and blasting currently utilizes many different varieties of

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