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Xi encourages new contributions by Daqing Oilfield
President Xi Jinping called on Daqing Oilfield staff on Thursday to keep pursuing reform and innovation and push forward high-quality development in building an oilfield that lasts 100 years.Read more -
China’s natural gas market has great potential: Chinese executive
The demand for natural gas in China is ramping up due to energy structure adjustment and environment protection policy, a senior executive of a leading Chinese energy company has said. Hou Qijun, vice president of China National Petroleum Cooperation, made the remarks during the Special Dialogue ...Read more -
The Introduction of Shock Sub Drilling
The shock sub drilling is developed to isolate the drill string from axial deflections created with the bit through drilling operations and then defend the bit from excessive put on through drilling operations. The tool will absorb shock load around the drill string and drill bit. It includes a h...Read more -
Hydraulic cutters-the most prevailing tools on market
As is known to all, the mechanical internal cutter is mainly used for the incision of the certain parts above the downhole stuck pipe, such as production technology string, drill column and so on. As well, if adopted in the timely cutting of bedding bag milling casing of casing construction, with...Read more -
Outstanding Variations of Cordless Drills
One of the most typical purpose of drills have been in metalworking, woodworking, developing and also the DIY tasks. You will find drills made especially for use in medicine, space exploration and even diamond mining. You’ll find large drills and tiny drills and also a practically infinites...Read more -
World Oil Demand
World Oil Demand Highlights (13 November 2015) *Please note that these Highlights are from the latest Oil Market Report, which is released in full to subscribers only – according to this schedule each month. Non subscribers get free access to the latest Highlights on this schedule, however ...Read more -
Energy drill tools
They are often operated by manually or by electric power. It is possible to also employ this machine as a screwdriver. You have to just fix a screwdriver tip to this machine to use it as a screwdriver. The drilling machines are available in diverse sorts based upon its need. The various forms of ...Read more -
Reverse Circulation (RC) Drilling
Reverse circulation (RC) drilling uses a dual-walled drill pipe (rod) with a solid drill bit to produce a hole in a formation and delivers rock chips (cuttings) to the surface for a subsequent analysis. The drilling mechanism is a pneumatic reciprocating piston (hammer) driving a tungsten-steel d...Read more -
Roller reamers
Roller reamers are employed in boring operations for the oil & gas industry. The main function of roller reamers cut earth formations to enlarge the borehole to the desirable size during well drilling operation, which may be the original size of the drill bit in the case where the drill bit w...Read more -
Downhole Mud Motors
Downhole Mud Motors There are two major types of downhole motors powered by mud flow; 1) The turbine, which is basically a centrifugal or axial pump and 2) The positive displacement mud motor (PDM). The principles of operation are shown in Figure and the design of the tool are totally different. ...Read more -
Types of Drill Bits
Types of Drill Bits Drill bits are broadly classified into two main types according to their primary cutting mechanism. Rolling cutter bits drill largely by fracturing or crushing the formation with “tooth” shaped cutting elements on two or more cone-shaped elements ...Read more -
Double-Acting Hydraulic-Mechanical Drilling Jar performance
To jar downward, apply a compression load to the jar in excess of the down-latch setting. This will release the mechanical latch and initiate the hydraulic delay sequence. Following the delay period, the jar will release, causing a downward jarring impact. Raising the drill string wi...Read more
