Hole Angle should not exceed 15 degrees any where in the hole unless down hole geological conditions induce such deviation, such as acute fault intersections.
井斜角在井眼任何地方不应超过15度，除非井下地质条件引发了此种偏离，如严重的断层交叉。
The results in this paper can be practically used for pipe string design and operational parameter selection for HPHT deep well down hole operations.
本文研究的结果对于高温、高压深井井下作业管柱的合理设计和作业参数的合理选择等具有较大的实用价值。
Can be used on rotary or down hole motor.
可用于转盘钻或井下动力钻具。
Rock drillability of rock samples was studied by means of experiment under zero pore pressure and simulated down hole conditions.
本文用试验方法研究了石油钻井过程中井底岩石零孔隙压力条件下的岩石可钻性。
For high accuracy of electronic gauge, it can reflect minor change of pressure at down hole clearly and obtain information furthest.
电子压力计因其精度高，可以更清楚地反映井下的微小压力变化，最大限度地获取地层信息量。
Drill stem test plays an important role in drilling operation. It is easy to fail or to cause complicated down hole situations if conducted improperly.
中途测试在钻井施工中具有重要的作用，如果测试措施不到位，容易导致测试失败或发生钻井复杂情况。
Some superiorities of using down hole hammer counter circulation type continuous coring (sampling) method in gold ore exploration are expounded in this paper.
文中阐述了在金矿勘探中应用潜孔锤反循环连续取心（样）的优越性；
The results show inorganic scale is calcium carbonate and scale in down hole and well bore area is the most severe. It agrees with practical situation basically.
结果表明，油井无机结垢类型主要是碳酸钙垢，结垢最严重区域为油井井底及近井带，与实际情况基本吻合。
Sealing property of rubber directly restrict its usability. Rubber is a type of super elastic material. Its mechanics behavior is complication under multi-strain in down hole.
封隔器胶筒的密封性能直接制约其使用性能，且胶筒属于超弹性材料，在井下多种载荷作用下，其力学行为复杂。
From analyzing the down hole pressure to calculate flow rate, by correction and process for these data, a better build up curves and accurate formation parameters are achieved.
本文从油井压裂后抽汲求产的井底压力分析出发，对压力恢复资料进行校正处理，得到了较好的恢复曲线，取得了准确的地层参数。
The utility model discloses a coal slurry rough separation machine, which is the equipment used in down hole of coal mines for rough separation of coal slurry in a water chamber.
本实用新型公开了一种煤泥粗分机，它是用于煤矿井下，将水仓中的煤泥水 粗分的设备。
The tools can complete every testing interval's dispense at once time while lowering down hole and have a feature of dispensing while recording, stepless dispensing and high accuracy.
仪器一次下井可完成全井各个层段的调配，具有边测边调、无级调配、高精度调配的特点。
In the detection of deep high-pressure water hazard of coal mine, down-hole electromagnetic method plays a unique role.
在煤矿深部高压水害隐患探测中，井下电磁法发挥着独到的作用。
The identification of down-hole dynamometer card is the key to making the diagnosis expert system for pumping with rod.
井下示功图的自动识别是建造有杆抽油工况诊断专家系统的一个技术关键。
The pure polymer gel has low mechanical strength, but the new multi-function composite gel has high mechanical strength, which can control the down-hole loss circulation effectively.
纯粹的聚合物凝胶力学强度相对较低，而新型多功能复合凝胶的力学强度相对较高，能有效的解决井下地层漏失。
On the basis of a large number of field data, the regression equations of displacement coefficient, down-hole power loss and surface efficiency for pumping wells are established.
本文以大量的现场测试数据为基础，建立了抽油机井排量系数、井下功率损失及地面效率的回归方程；
Based on the structural principle of the drilling liner hangers, with the analysis of down-hole situations, the article sums a set of success experience to operate the hangers.
文章以尾管悬挂器的结构原理作为基础，结合井下情况加以分析，总结出了一套成功使用悬挂器的经验。
The down-hole engineering parameters measure while drilling system has advantages of small in size, low power consumption, vibration resistance and high temperature resistance.
完成的井下工程参数随钻测试系统具有体积小、功耗低、抗振动和抗高温的优点。
One kind of down-hole full-spectrum acquisition controlling sequence generator and anode high-voltage converter is synthesized, which is suitable for pulsed-neutron synthesized logging tool.
研制了一种适用于脉冲中子测井仪的井下全谱采集控制综合时序发生器和阳极高压变换器。
The present utility model discloses a down-hole depth-determining water sampling apparatus for solving a problem that depth-determining water sampling can not be realized in the prior art.
本实用新型的井下定深取水样装置，为了解决现有技术中无法定深取水的问题而发明。
The problem of the behaviors of coiled tubing down-hole buckling is the key of the success of coiled tubing down-hole operation.
连续油管井下屈曲行为问题是连续油管井下作业成败的关键性问题。
In the light of the key technique of the down-hole driven progressive cavity pump (PCP) for oil production, a power distributional planetary reducer is proposed.
针对井下驱动螺杆泵的关键技术问题，提出了用于井下直接驱动螺杆泵的功率分流式行星减速器。
Complete the design of the inner pack assembly of the down-hole blowout preventer. Accomplish the strength analysis and check of the easily worn parts.
完成了井下防喷器的内封隔总成部分的设计，并对易损件进行了强度分析及校核。
Although logging-while-drilling resistivity logging has many advantages, it is influenced by the down-hole measurement environment, mainly anisotropy.
尽管随钻电阻率测井具有诸多优点，但其仍然要受井下测量环境的影响，其主要的环境影响因素是各向异性。
The main factors that influence the efficiency of rock-breaking are the down-hole rock properties and the rock-breaking tools and methods.
其破岩效率的主要影响因素是井下地层岩石性质、破岩工具和方法。
According to this problem, casing oil stolen prevention sealing valve was developed, matching with down-hole oil-gas separator and gas lift valve lift technology.
针对这一难题，研制了套管防盗油密封阀，并配套应用了井下油气分离器与气举阀助流举升工艺技术。
The two technical problems faced by the technology of under-balanced horizontal well drilling with gas injection are the down-hole motor and the conventional MWD can't work normally.
注气欠平衡钻水平井技术面临的两大技术难题是井下动力钻具不能正常工作和常规MWD无法正常工作。
In 1985, the first medium radius horizontal well was drilled using a down-hole mud motor.
在1985年，第一口的中半径水平井采用井下泥浆马达技术钻成。
In 1985, the first medium radius horizontal well was drilled using a down-hole mud motor.
在1985年，第一口的中半径水平井采用井下泥浆马达技术钻成。
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