*choose the appropriate word to fill in the blanks in each of the following sentences: A/ In rotary drilling the drilling processes accompanied by Pumping water with [1-cement, 2-Sands 3- clay] B/ In wash boring the excoration process begins in this Way be hammering a casing Pife into the Soil at adepin ranging between [1-(2m and 3.5m), 2-(3m aud 6m) 93-(smand (120) of/ The use of Percussion drilling is limited to places with CI-hard soil and rock, 2- Soft clay, 3-Silt and clay) D/ Split-spoon methode is one of the most common methods for extracting -- samples (1-undisturbed, 2-disturbed 3-compacted) E/ Shelby tube me thod is also know as the thin-walled and its tube, as the Length of the tuble is abut. internal and external diameters are 50.80mm and 76.20mm, respedirely [1-(50 cm), 2-(qocm), 3-(120cm) }

*choose the appropriate word to fill in the blanks in each of the following sentences: A/ In rotary drilling the drilling processes accompanied by Pumping water with [1-cement, 2-Sands 3- clay] B/ In wash boring the excoration process begins in this Way be hammering a casing Pife into the Soil at adepin ranging between [1-(2m and 3.5m), 2-(3m aud 6m) 93-(smand (120) of/ The use of Percussion drilling is limited to places with CI-hard soil and rock, 2- Soft clay, 3-Silt and clay) D/ Split-spoon methode is one of the most common methods for extracting -- samples (1-undisturbed, 2-disturbed 3-compacted) E/ Shelby tube me thod is also know as the thin-walled and its tube, as the Length of the tuble is abut. internal and external diameters are 50.80mm and 76.20mm, respedirely [1-(50 cm), 2-(qocm), 3-(120cm) }

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter19: Drilled Shaft

Section: Chapter Questions

Problem 19.1P

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7. Define yield of cement in slurry design. 8. Give the functions of centralizer and scratcher in drilling engineering. 9. What is the general formula for calculating the number of days allowed for fishing? 10. State the advantages and disadvantages of natural diamond bits ?
Question: Choose the appropriate word to fill in the blank in each of the following sentences. A. In rotary drilling the drilling processes accompanied by Pumping water with... ..(1- cement, 2-sand,3-clay). B. Bentonite can be used on the hole through perforated pipes to reduce the friction of the rotating shaft and thus........ the speed of drilling. (1- increase,2-dicrease, 3-hardining). C. A loose.........sample is a soil sample whose structure is disintegrated and whose mechanical properties have changed during its extraction. (1- undisturbed,2-disturbed ,3- compacted). D. There are some tests that require a.....and undisturbed Sample, such as shear, permeability, sittlement and others [soild, loose, soft]
Describe two advantages mud has over water as a drilling ﬂuid.
Question 4 Identify the borehole technique that advances drilling into rock formation Hollow stem augers b. Hydraulic push Rotary Wash Solid flight augers
b) Describe the following drilling methods and give advantages and disadvantages of each: solid i. stem augerii. rotary washiii. coring.
21. You have a wellbore that is drilled to 3,298 feet measured depth. Inside it, the customer ran 3,297 feet of 11.75 inch OD, 27 pound/linear foot casing with 11 inch ID. After pumping cement, we will drop a plug and displace to within 80 feet of the bottom of the pipe. How many barrels of displacement fluid do you need? (1bbl =5.6146 cubic feet, 1foot = 12 inches) * 95.0334 3217 80 378.32
You have drilled the first section (26" OH) using 10 ppg mud and it was cased with 24" Casing (ID 23") down to 1800 ft. Your task is to calculate how many bbls of the old mud will be required to drill the second section (20" OH) down to 3200 ft with 11 ppg. Is the old mud enough or you need to prepare an extra fresh volume?
I need the answer as soon as possible
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A 7 in – 17 lb/ft (6.538in ID) casing string is set at 8,000 ft deep in a 8 3/4 in hole. A height of 3,850 ft of cement is required in the annulus, and 60 ft of cement is left in the casing. Caliper measurements indicate the following average diameter: Well Depth ft 7000-8000 6000-7000 5000-6000 4000-5000 Average Diameter inch 91/8 91/4 95/8 93/8 Calculate the volume of cement slurry required using the caliper measurements and 15% of excess, and Without using the caliper measurement and 50% of excess. Calculate, for each case, the number of sacks of cement if the yield is 1.1 /sack.
13.5 Select a jaw crusher for primary crushing and a roll crusher for secondary crushing to produce maximum-size stone from the quarry will be crushed to the following specifications: tph of limestone rock. The I50 in. The stone is to be 23 Size screen opening (in.) Passing Retained on Percent 100 30-40 20-35 10-30 0-25 Specify the size and setting for each crusher selected. /4 3/141/40 1/4 3/4 1/
Refer to Figure 11.46. If the consolidation properties of the clay are rep- resented by the test results given in Problem 11.4, determine the primary 11.9 P Clay Df Yd H1 GWT B × L Ysat Clay Ysat Sandy gravel Figure 11.46 Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203 Problems consolidation settlement of the clay layer. Given: P = 675 kN, B = L = 3 m, D, = 2 m, H, = 4 m, and H, = 6 m. The soil properties are Sand: Ya 15 kN/m³; Ysat = 18 kN/m³ Clay: Ysat 18.9 kN/m³; e, = 1.18 P at the middle of the clay layer.) BL (Use Δσ' =