查询词典 drilling stem

In view of the rheological property of the heavy oil in Bo-hai field, this paper deduces the multilateral wells'production model of Non-Newtonian Bingham fluid with equiangular transformation method. In view of the multilateral wells Bo-hai, the paper analyses the multilateral wells'capitalized cost composition, including pre-drilling engineering, drilling engineering, completion engineering and production engineering. It also constructs the multilateral wells'economic benefit models basing on net present value, inner rate of return and payback period.

针对我国渤海油田稠油的流变特性，运用保角变换方法，推导了非牛顿Bingham流体的分支水平井产能模型；针对渤海油田的分支井，从钻前工程、钻井工程、完井工程、采油工程等方面对分支井的投资成本费用构成进行了具体分析；最后以净现值、内部收益率、投资回收期经济评价指标为基础，建立了海上分支井经济效益模型，并根据所建模型应用VB。

In the application of water-saving drilling system, in-hole drilling condition can only be judged by observing pressure change in pressure gauge on the surface with low precision.

节水钻探系统在使用过程中，由于孔内不返水，在地表只能通过观察压力表的变化量来判断孔内工况，精度不高。

In the application of water-saving drilling system,in-hole drilling condition can only be judged by observing pressure change in pressure gauge on the surface with low precision.By study,the quantization of working condi...

通过研究，最终解决通过地表压力变化值来判断孔内工作情况的量化问题，建立初步理论模型，从而更加准确地判断孔内的工况，使这套钻具更快地应用到实际工程中。

During the 26th Antarctic expedition to study deep ice core drilling team will carry out the preparatory work, in the Kunlun station to build a deep ice core drilling site, while continuing to carry out the Zhongshan Station-Dome A cross-section of glaciology observations, Dome A site measurement of the Hong Kong Observatory and astronomical observations and mapping study visits, and will complete the second phase of the Kunlun station, including the installation and commissioning of sewage treatment and other equipment.

第26次南极考察期间，考察队员将进行深冰芯钻探的前期准备工作，在昆仑站构筑深冰芯钻探的场地，同时继续开展中山站-Dome A断面的冰川学观测、Dome A天文台址测量和天文观测以及测绘学考察，并将完成昆仑站的二期工程，包括安装调试污水处理等设备。

During the 26th Antarctic expedition to study deep ice core drilling team will carry out preparatory work, in the Kunlun station to build a deep ice core drilling site, while continuing to carry out from Zhongshan Station to Dome A cross-section of glaciology observations, the Hong Kong Observatory Dome A site measurements and astronomical observations and mapping study visits, and will complete the second phase of the Kunlun station, including the installation and commissioning of sewage treatment and other equipment.

第26次南极考察期间，考察队员将进行深冰芯钻探的前期准备工作，在昆仑站构筑深冰芯钻探的场地，同时继续开展中山站至冰穹A断面的冰川学观测、冰穹A天文台址测量和天文观测以及测绘学考察，并将完成昆仑站的二期工程，包括安装调试污水处理等设备。

Half of the shallow oxide potential in the southern half of the project. The 2004 drilling program is focused on infill and extension drilling of several targets in the Fortitude area to the north and the Glory Hole and Minnie area to the south.

Phoenix露天矿的南墙上层的潜力最大。2004年的钻探计划重点是在北面的Fortitude区和南面的Glory Hole and Minnie的几个靶区布置加密钻探和延伸钻探。

Oil exploration practice and researched results indicate that most of hydrocarbon reservoir forming related to gyp- sum and salt rock formation,and the hydrocarbon is also associated with it,so,successfully drilling through gypsum and salt rock formation has been become one of drilling dif- ficult problems.

石油勘探实践和研究结果表明，许多油气藏的形成都与膏盐岩地层有关，也常与膏盐岩地层伴生，成功钻穿膏盐岩地层是钻井难题之一，录井技术成为钻进安全监测、膏盐岩地层准确预报的重要手段。

He TXU-50 drilling machine mainly by the gyrator, gives the organization, the gear box, the drilling machine control mechanism and so on is composed the hand, has the monitor and other some auxiliary unit.

XU-50型钻机主要由回转器、给进机构、变速箱、钻机操纵机构把手组成，配有控制测量仪表和其他一些辅助装置。

Nowadays,oil and gas exploration is widely undergoing development in the world and drilling horizontal well technology is the major support for highly efficient oil and gas well in order meet the rapidly increased numbers of horizontal well,to meet the requirement of explorative difficulty and to meet the development trend of this technology competition of horizontal well drilling.

当今世界范围内正加大油气勘探开发投入，水平井已成为高效开发油气的重要技术支撑，水平井的数量也迅速增多，以适应油气勘探开发技术难度普遍增大的需求及水平井技术实力竞争加剧的趋势。

The paper introduces to the control principle of the radial drilling machine. Established the programmable controller improve the design project of electric control system of Z3040 radial drilling machine. Completed the design of the software and hardware of the electric control system, Among them include the model of PLC choice、the I/O allotment of the address、the I/O hardware connects the line diagram、PLC trapezium diagram ' s design.

论文分析了摇臂钻床的控制原理，制定了可编程控制器改造Z3040摇臂钻床电气控制系统的设计方案，完成了电气控制系统硬件和软件的设计，其中包括PLC机型的选择、I/O端口的分配、I/O硬件接线图的绘制、PLC梯形图程序的设计。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。