电子式定向仪由井下仪器及地面处理设备组成。
Electronic directional drilling system consists of downhole tool and sur - face data processing equipment.
同时对井下仪器在超深井中工作的可靠性给予评价。
Moreover, the reliability of downhole tool in ultra deep well is appraised.
利用套管柱上的已知的基准点来确认或对比处理深度所用的井下仪器。
A downhole tool used to confirm or correlate treatment depth using known reference points on the casing string.
油田现场试验表明，它完全可以模拟井下仪器，解决了地面系统的自检问题。
The results of experiment in oil fields show that it can simulate the signals of downhole instruments and resolve the problem of self-test of ground system.
该技术主要仪器为声纳测距仪，它包括地面仪器、井下仪器及各种辅助设备。
It is mainly composed of sonar range finder which includes comprehensively surface instrument, subsurface equipment and different kinds of accessory.
文章介绍该仪器的基本原理、井下仪器结构、仪器工作方式、技术指标和测井实例。
This paper presents the measurement principle, downhole tool structure, operating mode, technical specifications and a log example of the tool.
应用锁相环集成电路ne567对音频信号的鉴相原理实现对控制信号的译码输出，控制井下仪器马达工作。
The latch phase circle circuit NE567 functions as phase demodulation of audio frequency signals for realizing decoding output of the control signals to control the downhole motor operations.
本文从超声波信号模型出发，对超声电视测井井下仪器的接收机、发射机的指标和方位检测精度进行了详细分析。
With a model for the ultrasonic signal, the requirement on receiver and transmitter performance and the detection accuracy of the bearings of an ultrasonic borehole televiewer are discussed.
其次，分析了感应测井技术的基本原理和井下仪器的整体电路结构，为后续的电路单元设计提供了一定的理论依据。
Secondly, the principle of induction logging technique and the entire architecture of downhole tool are analyzed in details, which can provide definite theory foundation for subsequent circuit design.
测量数据存储在井下仪器内部，可在地面进行回放读取，且无需电缆供电传播波形的质量很高，可用于高级后处理。
Memory data stored in the tool can be accessed on surface without requiring power through the wireline cable, and delivers the highest quality waveforms for use in advanced post-processing.
VMM允许使用者评估井下钻进的振动剧烈程度，以此来提高钻进效率，还能警告作业者注意振动状况，包括粘卡及涡动等可能损坏MWD和其它井下仪器的现象。
VMM allows users to assess the severity of downhole drilling to improve drilling efficiency and alert them to vibration conditions that could damage MWD and other downhole tools.
在单芯电缆测量的脉冲中子氧活化仪器中，如何从地面实现对井下中子管的控制是一个非常复杂的问题。
How to control the downhole tool's neutron tube from the surface is a complex problem in the pulse neutron oxygen activation logging tool, which measures through a single core cable.
该仪器主要用于检测煤矿井下环境气体中的甲烷浓度，运用了热催化原理。
This instrument is used with the principle of catalytic incineration to measure the concentration of methane in coal mine.
同时由于从井口到井底始终存在着连续的液相流，常规井下动力钻具和随钻仪器的性能不受影响，可以进行正常的井眼轨迹控制。
Meanwhile, the downhole motor and MWD are not affected and wellbore trajectory can be controlled because of the continuous fluid phase flow throughout the bore hole.
一种井下工具，它用来固定暂时要被留在井筒中的井下仪表或仪器。
A downhole tool on which downhole gauges or instruments that are to be temporarily left in the wellbore are attached.
这里介绍了一种采用计算机系统对井下故障进行诊断的仪器，叙述了仪器的设计结构和应用效果。
This paper presents a instrument which can diagnoses the down hole failure with computer system, and describes the design of its construction and applications.
准确判断井下钻具振动并采取相应的技术措施对于有效保护FEWD测量仪器、提高钻井综合效益具有重要意义。
The accurate estimate of the drill string vibration and the corresponding technique are very important to protect the FEWD equipment and increase the comprehensive efficiency.
使用机械浮子井下流量计经常因仪器、水质、井下工具等问题，造成测试资料不准或因卡住仪器而修井。
A mechanical floating is used because of instrument, water quality and down hole tools that make in-correct result measured or instrument blocked down hole.
在水平井地质导向钻井过程中，井下钻具振动易导致井下FEWD测量仪器损坏，造成巨大经济损失。
During the horizontal drilling, the vibration of drilling string will easily cause the damage on the FEWD equipment and a huge economic loss.
测试要受井下情况的复杂性和测试仪器的影响。
The test will be affected by complex nature of downhole and testing instruments.
该仪器已经通过了井下试验。
该仪器能够从井口自动监测抽油井内环空液面深度变化，通过分析计算获得井下压力的恢复情况。
The monitor can automatically measure the annular liquid level changes at well head, and then calculate the bottom hole pressure.
测试仪器安装在水力活塞泵泵芯尾部取样器内，随泵芯投入井下进行测试，可实时检测地层液的含水率情况，利用数据存储器实时保存历史曲线，提供了全天候观测生产过程的手段。
Testing instrument was installed in sampler at heel of hydraulic pump, put into down-hole with pump, and it can examine water cut of formation fluid, save history curves in real time by data memory.
套管接箍定位器是一种电测井下井仪器，它检测由套管接箍的相对较高的质量所引起的磁异常。
The casing collar locator is an electric logging tool that detects the magnetic anomaly caused by the relatively high mass of the casing collar.
井下声波电视测井图上的一种异常现象。在电缆提升的过程中，由于下井仪器在井中的不稳定运动，而在阴极射线管上显示出异常的一种效应。
On borehole televiewer logs. An unusual effect produced on the cathode-ray tube display by erratic movement of the tool as it drags along the borehole.
特殊的井下环境要求井下测井仪器的尺寸小、可靠性高而且具有高速数据传输能力。
Special downhole environment requires small and reliable downhole logging tools with faster data transmission speed.
某高温高压试验站通过模拟井下高温高压环境，对HTHP测井仪器进行安全性测试。
A safety test on HTHP logging equipment is accomplished by simulating the HTHP environment by a HTHP experimental station.
介绍了针对井下采煤机工作现场振动检测而开发的基于ARM7嵌入式微机的检测仪器。
The paper introduces a kind of inspecting instrument with embedded microcomputer based on ARM7, which is developed aiming at spot inspection to vibration occurs from silo shearer.
阐述了其工作原理及结构特点，通过试验分析对比，得到了适合于石油井下聚合物流量测量的靶型设计，实验结果证明仪器设计是可行的。
A suitable target type of measuring polymer flow under oil well is designed through the experiment, analyzing and contrast. The experiment result proves that the design of flowmeter is applied.
井下压力测试资料统计分析证明，利用在地表上容易观测到的水位、水温资料计算出的井下压力，达到了与下井仪器相同级别的工程测量精度。
The analysis of data for pressure at the well bottom shows that the well pressure acquired through calculation by using the water level and water temperature which are easily observed on ground has...
应用推荐