Kulluk was an ice-strengthened drill barge that was used for oil exploration in the Arctic waters. She was constructed by Mitsui Engineering & Shipbuilding in Japan in 1983 and operated in the Canadian Arctic until 1993 when she was mothballed for over a decade. In 2005, she was purchased and extensively. .
From 1983 to 1993, the rig was operated by in . She was mothballed in 1993, and in 2005 she was. .
Kulluk was strengthened against ice with 3 in (76 mm) thick, reinforced steel, and a funnel-shaped with flared sides enabling her to. .
• on the CIMSS Satellite Blog• McKenzie Funk, , New York Times Magazine, December 30, 2014 [pdf]
Every year, drill rigs and other heavy, specialty equipment used for deep foundation construction (Figure 1) overturn potentially causing injuries and fatalities, as well as damage to the surrounding s. [pdf]
Deepwater drilling, or deep well drilling, is the process of creating holes in the using a for under the deep sea. There are approximately 3400 deepwater wells in the with depths greater than 150 meters. Deepwater drilling has not been technologically or economically feasible for m. [pdf]
Since 2010, Alxa League has frequently appeared as one of the most prosperous prefecture-level divisions in all of China when measured by GDP per capita; in 2013, the GDP per head was approximately US$30,000. If using this measure alone, Alxa was ranked first in China, even higher than its neighbor . Wealth in the region is not evenly distributed, and the numbers are skewed by its low permanent population. Much of the productive economic activity takes place. [pdf]
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We are a leading supplier of mining equipment. Core drilling is a specialized area with a unique set of demands. For more than 100 years, people around the world have depended on our rigs to deliver excel. [pdf]
There are two types of de-dusting methods: one is wet de-dusting and the other is dry de-dusting. The two types of dust removal methods have different effects. .
The dry de-dusting system of the drilling rigmainly consists of filters and air ducts. In the process of drilling tool gouging, rock dust is blown out of the hole. .
Wet de-dusting is done by mixing the pressurized air with water through a mixer and pumping the water from the tank to the water pipe. The compressed air. [pdf]
RC, or reverse circulation, drilling is a tried and true drilling method in certain circumstances. Drillers usually use it on large-diameter holes because it is faster and easier to clean the hole. The fluid and cuttin. [pdf]
Pneumatic down-the-hole (DTH) hammer has been extensively used in air drillings through hard and ultra-hard geological formations. Numerical modeling can offer close observation on the working behav. [pdf]
The down-the-hole drilling machine is suitable for large-diameter blast hole rock drilling operations in small and medium-sized mines, road construction, water conservancy, and stonework, as well as dri. [pdf]
[FAQS about 70 type down-the-hole drilling rig FAQ]
Water well depths can vary on various factors such as the type of rig, the earth and the type of rock that need to be drilled through. If you’re going down the residential water well drilling route, you’ll typicall. [pdf]
A down-the-hole drill, usually called DTH by most professionals, is basically a screwed on the bottom of a . The fast hammer action breaks hard rock into small cuttings and dust that are evacuated by a fluid (air, water or ). The DTH hammer is one of the fastest ways to drill hard rock. The system is thought to have been invented independently by Stenuic. [pdf]
The Christensen range of surface core drilling rigs has, over many years, established itself a reputation for reliability and ease of use. Many Christensen rigs are available on a simple platform, a trailer p. [pdf]
[FAQS about Core drilling rig]
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