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inner core barrel
    很抱歉,暂未找到该词条的译词。
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     core.
     内核。
短句来源
     Translational Oscillations of the Inner Core
     地球内核的径向振动
短句来源
     Nutation Efficiency of the Earth's Inner Core
     地球内核的章动效应
短句来源
     Core Separator
     核心分离器
短句来源
     It is inner randomicity.
     这种现象是由系统完全确定的,是一种内随机性。
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  inner core barrel
The inner core barrel is lined with a plastic tube to assist in core handling and storage.
      
The bit then was pulled clear of the seafloor, and the inner core barrel was retrieved by wireline.
      
Rock shall be cored using an outer and inner core barrel drilling system.
      
A mud pill was circulated while the string was worked free, and the inner core barrel landed during the process.
      
A good water sample was obtained, and the pipe trip continued with the top drive deployed and a RCB inner core barrel in place.
      


The conventional core inner barrel which unprocessed have crude face and there are mul -steps in the core passage of barrel because the connections of compound ports of inner core barrel that made the core difficult entering barrel in soft formation coring. The low frictinal core barrel has been developed in which inner face has a lay epoxy resin coating with low frictinai factor by Shengli drilling research institute. The frictinal factor decrease with increasing of load...

The conventional core inner barrel which unprocessed have crude face and there are mul -steps in the core passage of barrel because the connections of compound ports of inner core barrel that made the core difficult entering barrel in soft formation coring. The low frictinal core barrel has been developed in which inner face has a lay epoxy resin coating with low frictinai factor by Shengli drilling research institute. The frictinal factor decrease with increasing of load and the hiding structure of core spring barrel with internal flush connections of core passage is adopted. Tnrough ten wells applications,total coring footage is 815. 9 meters,avarege core footage per barrel is 789. 94 meters and the recovery is 96. 82% geater than conventinal tool by 4.16 meters per barrel in footage.

常规内岩心筒的内表面未经任何加工,比较粗糙;内筒组合各部件连接使进心管路成多级台阶,所以在松软地层取心极易堵心。胜利油田钻井工艺研究院研制成功的低摩阻岩心筒,内筒内表面有一层低摩擦系数的环氧树脂涂层,特点是随载荷增加,摩擦系数减小;岩心爪采用隐蔽式结构,进心管路采用内平式连接,有利于岩心顺利进筒。推广后,仅据埕岛、樊家等油田10口井的统计,累计取心进尺815.90m,心长789.94m,岩心收获率96.82%,平均单简进尺10.07m。单筒进尺指标比油田同期平均4.61m提高1倍以上,实现了单筒进尺翻番的目标。

K series hydro - hammer wineline core drilling system is a kind of geological core drillingsystem successfully developed by Exploration Technology institute of MMI, including TK - Aseries positive action hydro - hammer and TK - S series wireline core drilling system. Its structure and principle are shown as Fig. 1 and Fig. 2.A piston hammer (5) is in the upper position when acted by a hammer spring (6) and itscentre bore is covered by a valve (3). Under high pressure fluid, the piston and valve make thehammer...

K series hydro - hammer wineline core drilling system is a kind of geological core drillingsystem successfully developed by Exploration Technology institute of MMI, including TK - Aseries positive action hydro - hammer and TK - S series wireline core drilling system. Its structure and principle are shown as Fig. 1 and Fig. 2.A piston hammer (5) is in the upper position when acted by a hammer spring (6) and itscentre bore is covered by a valve (3). Under high pressure fluid, the piston and valve make thehammer spring and valve spring move down. At the moment when the anvil will be impacted,the valve (3) has been blocked by a valve seat (2), and the valve and piston hammer have beenseparated. The valve acted by the valve spring (l) moves up to the upper position and the piston hammer continues to impact the anvil (7) with inertia. After the valve is apart from the piston, the centre bore is opened and the pressure is relieved on the upper section of the valve. Thepiston hammer begins to move up by the action of the hammer spring. When contacting withthe valve, it moves down again. In this way, the piston hammer moves in cycles to produce continuous impacts. Impacting load is transmitted by a spline mechanism to the bit at the hole bottom.In TK - S series wireline core drilling system, a positive action hydfo - hammer is mountedon an inner core barrel assembly. The impact force is given out by the percussive tool and transmitted by a vibro - transmiting ring, vibro - receiving ring and spline mechanism to the outercore barrel. Meanwhile rotation of the system to form the round cored hole.More than 3, 000 sets of TK series drilling systems have been produced. More than ten million RMB of economic benefits have been obtained by this tool with an accumulative total meterage of over 3, 000, 000m.

介绍了TK-A系列正作用液动冲击器和TK-S系列绳索取心冲击回转钻具的技术原理、主要技术性能参数及推广应用概况。

 
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