دانلود کتاب National Driller January 2012

فهرست مطالب :

National Driller January 2012......Page 1
The Latest from EPA on Hydrofracturing: Blame for Pollution......Page 4
Contents\r......Page 6
Foundation Project Milestone......Page 10
HDD Bore Through a Steep Slope......Page 12
HDD in Environmentally Sensitive Areas......Page 20
Another Record-setting\rNGWA Show......Page 24
Coming Events\r......Page 32
The Wonders of Travel......Page 34
Sealing the Wellhead......Page 40
Backreaming Through Rock......Page 42
More about Drop Pipe This time not steel......Page 46
World’s Largest Pile......Page 48
Well Problems and Solutions......Page 50
Product Showcase\r......Page 52
Multiple-depth Monitoring Well Installation......Page 54
Product Info\r......Page 55
A Parting Shot\r......Page 56
The Marketplace\r......Page 57
Back Cover\r......Page 72