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coring device
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  取心器
     SDQ-91 MWD directional coring tool consists of two parts: directional coring device and MWD tool.
     SDQ - 91型随钻测量定向取心钻具包括定向取心器和随钻测量仪 2个部分。
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  相似匹配句对
     Infusion device
     输血输液装置
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     Nanosemiconductor Device and Its Application
     纳米半导体器件及其应用
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     Directionally Coring Technique
     定向取心技术
短句来源
     SDQ-91 MWD directional coring tool consists of two parts: directional coring device and MWD tool.
     SDQ - 91型随钻测量定向取心钻具包括定向取心器和随钻测量仪 2个部分。
短句来源
     The research on fluidic coring tools included fluidic elements, whirl-proof drill bits and water isolating device.
     射流式取心钻具的研究内容包括射流元件的研究、抗涡动钻头的研究及隔水装置的研究。
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  coring device
In particular, small (~100-500 μm) core samples from specially selected regions of petrographic thin sections can be obtained using a micro-coring device and analyzed by micro-INAA.
      
Details are outlined for the construction and use of an easily constructed and inexpensive parachute-assisted, gravity-driven, sediment coring device.
      
Instructions for construction and use of a simple and inexpensive sediment coring device are presented.
      
A new coring device is presented which allows the recovery of loose watery surface sediments and the water/sediment interface byin situ freezing, resulting in well preserved samples.
      
We will collect a minimum of three cores from each reservoir using a Livingston Piston Coring device.
      
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OP is very low in mineral exploration sampling drilling when encountering rock with compressive strength greater than. 75MPa, and core blockage is common with low recovery, especially in hard and broken formations. P. R. C. developed hydro - hammers, powered by the hydraulic energy left from that the pump provides to flushes the hole bottom and cools the bit, realize DTH hydro -hammer drilling. The hydro - hammer exerts impact load on the bit under action of weight - on - bit and torque, allowing rock under...

OP is very low in mineral exploration sampling drilling when encountering rock with compressive strength greater than. 75MPa, and core blockage is common with low recovery, especially in hard and broken formations. P. R. C. developed hydro - hammers, powered by the hydraulic energy left from that the pump provides to flushes the hole bottom and cools the bit, realize DTH hydro -hammer drilling. The hydro - hammer exerts impact load on the bit under action of weight - on - bit and torque, allowing rock under pre - stressed compressive stress to receive skew impact, which enhances rock fragmentation. It is proven through drilling of 900,000m that ROP can increase 30% to 100%. Single - bodied hydro - hammers with diametersranging from 43 to 219mm have been developed. The hydro -hammer wireline drilling systemcan reduce core blockage obviously owing to forcible vibration of the core barrel, with core recovery greater than 90%. There are available hydro -hammer wireline drilling system in sizes ofBQ, No and Ho. YS single - bodied hydro - hammer and SSC hydro - hammer wireline drillingsystem have a temperature resistance up to 300℃ , with well diameter/core diameter ratio of 1. 2to 1. 4 for YS and 1. 5 to 2. 0 for SSC, which looks good for scientific drilling.The performance of the hydro - hammer can be fully evaluated on the basis of output power, hydraulic energy availability and service life. The hydro -hammer drilling technique of P. R.C. has attracted the attention of the counterparts in developed countries with its high effiency,advantages in drilling through difficult formations and multiple sizes.In order to develop the technique, P. R. C. has established the special research institution,set up the laboratory, and developed corollary tools (bits, coring devices, testing instruments,etc. ). The professional standard of Specifications of "Hydro - Hammer Drilling Technique"(DZ/T0053- 93) has been issued by MGMR.Combination of the hydro - hammer with other relevant drilling tools, as well as its use inscientific drilling, directional drilling, horizontal drilling and development of large diameter hydro - hammer for rock socketed foundation pile hole drilling will be researched in the future.

利用泥浆泵驱动的液动潜孔锤钻探技术比回转钻探强化了碎岩过程,在复杂岩层中钻进减少岩心堵塞,提高钻井笔直度。论述了阀式液动锤设计及评价的依据.地矿部勘探技术研究所从50年代开始研制了适用于矿产勘探岩心钻进用的各种液动潜孔锤,并积累了较丰富的实践经验.提出了大陆科学钻探利用此技术的前景和建议.

SDQ-91 MWD directional coring tool consists of two parts: directional coring device and MWD tool. The working principle, technical performance and components are described. The method of finding the attitude of the rock formation structural plane by the computer through four core orientation parameters is presented. The testing and its results are also introduced.

SDQ - 91型随钻测量定向取心钻具包括定向取心器和随钻测量仪 2个部分。叙述了其工作原理、技术性能和结构组成 ;说明了采用 4个岩心定向参数由微机求解岩层构造面产状的方法 ;介绍了试验情况及结果

It discussed the design of long distance core-pulling device, and depicted the mold construction with angle pin in two-stage coring, solving the problem of mold's large dimensions for long distance core-pulling device, and described operating process. To pull the core of molding part which has inside ribbing, the draw back, tapered slide block coring device is adapted, and the molded part is ejected out simultaneously by use of tapered slide block. This kind of mold is compact in construction and the efficiency...

It discussed the design of long distance core-pulling device, and depicted the mold construction with angle pin in two-stage coring, solving the problem of mold's large dimensions for long distance core-pulling device, and described operating process. To pull the core of molding part which has inside ribbing, the draw back, tapered slide block coring device is adapted, and the molded part is ejected out simultaneously by use of tapered slide block. This kind of mold is compact in construction and the efficiency is high in production.

论述长距离抽芯机构方案的选择,给出变角度斜销抽芯注塑模具结构及工作过程,解决长距离抽芯模具尺寸较大的问题。对塑件内侧凸起,采用内缩式斜滑块抽芯,同时利用斜滑块推出塑件,模具结构紧凑,生产效率高。

 
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