查询词典 drilling

Working conditions of drilling string is complex underground, various factors ofteninteract, in the process of drilling, drilling string acts complex movement in drill fluid, drillfluid unavoidable corrupt drilling string because such as oxygen, hydrogen sulfide and manysalts are dissolved in it. At the same time, many cyclic stresses act on drilling pipe, such asflexural cyclic stress, torsional cyclic stress.

钻柱在井下的工作状态是复杂的，常常是多种因素交织在一起的，在钻井过程中，钻柱在溶解了氧、硫化氢及各种盐类的钻井液中作复杂运动，不可避免的受到它们的腐蚀作用，同时还要受到弯曲、扭转等交变应力作用。

Next, take the rock mechanics as a foundation, has analyzed the gas drilling broken rock mechanism; Thought that the gas drilling broken rock mechanism is different with the conventional drilling fluid well drilling, the bottom of the well rock destruction way destroys for the volume, the bottom of the well rock and the drill bit contact plane disproportionality causes the gas well drilling well diviation another reason.

其次，以岩石力学为基础，分析了气体钻井破岩机理；认为气体钻井破岩机理不同于常规钻井液钻井，井底岩石破坏方式为体积破坏，井底岩石与钻头接触平面不均衡性是导致气体钻井井斜的又一原因。

To avoid lost circulation or wellbore instability when drilling fluid circulated downhole after gas drilling, or to shorten drilling cycle and reduce drilling costs, it is recognized that the cementing quality needs to be improved further. 18 dryhole cementing jobs have been tried in 339.7 mm and 244.5 mm holes in Sichuan and Chongqing oil or gas fields and a set of technology for dryhole cementing after gas drilling is developed, including wellbore preparation, casing running, incontinuous liquid slurry injection, etc.

为了避免气体钻井结束后替入钻井液可能引发的井漏、井眼不稳定等复杂情况，缩短钻井周期、降低钻井成本，进一步提高固井质量，在川渝地区探索实践了气体介质条件下339.7 mm表层套管和244.5 mm技术套管共18井次的干井筒固井作业，基本形成了一套气体钻井后干井筒（井眼内为纯气体时的井筒简称为干井筒）固井工艺技术方案与措施。

To avoid lost circulation or wellbore instability when drilling fluid circulated downhole after gas drilling, or to shorten drilling cycle and reduce drilling costs, it is recognized that the cementing quality needs to be improved further. 18 dry-hole cementing jobs have been tried in 339.7 mm and 244.5 mm holes in Sichuan and Chongqing oil or gas fields and a set of technology for dry-hole cementing after gas drilling is developed, including wellbore preparation, casing running, incontinuous liquid slurry injection, etc.

为了避免气体钻井结束后替入钻井液可能引发的井漏、井眼不稳定等复杂情况，缩短钻井周期、降低钻井成本，进一步提高固井质量，在川渝地区探索实践了气体介质条件下339.7mm表层套管和244.5mm技术套管共18井次的干井筒固井作业，基本形成了一套气体钻井后干井筒（井眼内为纯气体时的井筒简称为干井筒）固井工艺技术方案与措施。

7 Mm casing drilling technology in batch drilling on the Chenghai-1 platform in Dagang Oilfield was introduced in detail,including tools used in casing drilling,structures and principles of casing driver and the casing shoe,major equipment requirements of casing drilling,drilling process,and cementing techniques without drilling rig.

简要介绍了套管钻井技术的工艺特点及国内外研究现状，详细介绍了φ339.7 mm套管钻井技术在大港油田埕海一号平台批钻井中的应用情况，包括套管钻井使用的工具———套管钻井驱动器和套管钻鞋的结构和工作原理；套管钻井的主要设备要求、工艺流程以及无钻机固井工艺。

The application of φ339.7 mm casing drilling technology in batch drilling on the Chenghai-1 platform in Dagang Oilfield was introduced in detail,including tools used in casing drilling,structures and principles of casing driver and the casing shoe,major equipment requirements of casing drilling,drilling process,and cementing techniques without drilling rig.

埕海一号平台13口井表层套管批钻井的应用结果表明，采用套管钻井技术可以缩短钻井周期，提高机械钻速，降低钻井成本，而且国产套管钻鞋的钻井指标已接近国外公司同类产品的技术水平，虽然成本相对较高，但批量生产后成本会显著降低。

Prepared by Tom Sheeran A Drilling Rig ! Here are a few different types of drilling rigs available: Land Rig For drilling on land. Drill Ship Drill ships and semi-submersible rigs are for drilling in water depths from 100 to 5000+ ft. Semi-Submersible Rig Jackup Rig For drilling in water depths from 15 ft to +/- 350 ft. Inland Barge For drilling in water depths from 8 to 30 ft.

以下是一些不同种类的钻井设备：陆上钻井架用于陆上钻井钻井船钻井船和半潜式钻井平台用于水深100 ft到5000+ft情况的钻井半潜式钻井平台自升式钻井平台用于水深15ft 到+/-350ft 情况的钻井内陆驳船钻井架用于水深8ft 到30ft情况的钻井

Drilling track is key factor which decide trenchless success or failure , but controlling drilling track stay around rectifyed phase at the present .guided the theory of force is the key affectting the drilling track ,the paper discuss primary factors on contralling drilling track ,and advance the formulary ahout reckoning deviation force and azimuth force ,expect to achieve the aim that drilling track were controled real time and be anticipated , and have the initiative on drilling track contaolling .

岩层钻进轨迹是决定非开挖成败的关键因素，目前对钻孔轨迹的控制仅仅停留在被打纠偏层面上，本文在力是影响钻进轨迹本质因素理论指导下，对影响岩层钻进轨迹控制的因素进行了理论探讨，并针对造斜力和变方位力提出了计算模式，希望最终能实现钻孔轨迹的实时监控与调整，变被打纠偏为主动钻进。

Drilling needle grinding and disposal Process Description : Note the use of needle drilling Content : drilling needles is the main circuit board drilling consumables, the most profound impact on circuit board drilling costs, the majority of the larger diameter needle drilling will engage in further grinding.

钻针研磨及排放制程说明：说明钻针的运用工作内容：钻针是电路板钻孔主要的耗材，极度影响电路板钻孔的成本，因此多数较大孔径的钻针都会从事再研磨。

Taking a general view of the paper, major innovative ideas and returns are as follows: The main innovative ideas are as follows: 1. The paper put forward the new idea that combine water-saving drilling with rotary percussion drilling creatively according to the present situation of water resource lack seriously and the background of implementation of state geological survey strategy. 2. The working principle of new designed system of water-saving hydraulic percussion device completely different from traditional hydraulic percussion device, the system can carry out rotary percussion drilling on the condition that no surface water be consumed, and achieve the purposes that saving surface water, cutting cost and improving drilling efficiency. 3. The design conception of steel ball percussion device is very novel, the percussion device is durable, with a simple structure, at the same time drilling efficiency would be improved highly and drilling cost would be reduced greatly when drill with the steel ball percussion device.

综观全文，论文的主要创新点及研究成果如下：主要创新点： 1、结合我国许多地区水资源严重短缺的现状以及国家实施地质大调查战略的背景，创造性地提出了&节水钻探&和&回转冲击钻进&结合起来的新思维； 2、设计出的节水型液动冲击器系统，其工作原理跳出了传统液动冲击器要消耗大量地表水的原理模式，在基本不消耗地表水的情况下便能实现回转冲击钻进，达到节约地表水、降低成本、提高钻探效率的目的； 3、设计的球体冲击器构思新颖，克服了同类产品冲击功传递效率低的弊端、且结构简单、经久耐用，可大幅度提高钻探效率、降低钻探成本。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。