高级井下工具简介（中英文）DUMP IRON production introduction.doc

短钻铤 Pony DC 短钻铤主要用来调整底部钻井工具位置和改善底部钻具功能。其机械性能和规格与API Spec7-1规范对钻铤的要求相同，但其长度较短。使用轧制或锻造的优质合结钢制造，是钻柱的最重要组成部分。 Pony DC is a short drill collar and is mainly used to adjust the length and improve the properties downhole tools. Its mechanical properties and specifications are in accordance with requirements of API Spec7-1.It is made up of rolling or forging high-quality steel 钻具稳定器 DRILLING STRING STABILIZER SERVICE MANUAL 用途 钻具稳定器是满眼钻井预防井斜的钻具。钻具稳定器分为井底型（近钻头稳定器）和钻柱型。Drill string stabilizer is a full hole-drilling tool of preventing well deviation. 使用注意事项 在使用前，首先应根据该地区或邻井资料作好钻井设计外，还须注意以下工作要点。Design a good well according to information of the local area or the neighboring wells before using it and pay attention to main points of work below. 下井前要认真检查稳定器工作外径，应确保稳定器与井眼的间隙符合设计要求。Before drilling with it, please check the stabilizer for working external diameter carefully and ensure the gap between Stabilizer and hole to accord with the design requirement. 由于满眼钻具本身不具有减斜作用，若井已经偏斜用满眼钻具，就会使井眼一直斜下去或钻成斜直井。因此上部井段一定要钻直，同时在钻进中要经常测斜，当发现井斜超过标准时，必须及时改变钻具配合或调整技术参数，采取有效措施提高井身质量。The full hole drilling rig itself has not the function of reducing deviation, if it is used on a leaning well, the hole will become more and more slanting and result in deviation of the well, so the upper part of a well must be drilled vertically, hole deviation exceeds the standard, Combination of the drilling rig or the technical data must be changed in time, and effective measures should be taken to improve the quality of the well body. 起下钻或中途停钻循环泥浆时，应将钻头提高一定高度，适当降低排量，并不得停留在某一位置长时间循环，以防冲大井眼。Raise height of the drill and reduce discharge when dismantling drilling rig of circulating mud by stopping it halfway. Do not stay it in a certain position for a long time circulation to prevent the hole from enlarging. 合理选择钻压，均匀送钻，在地层岩性变化时调整钻压要及时。Select a reasonable drilling pressure and drill evenly. Adjust the drilling pressure timely when the nature of the rock stratum changes. 增加了稳定器组成的满眼钻具，至少要在钻头以上适当位置定装三只稳定器，保持有三段接触井壁，