油管

The furring thickness of water pipe is the worst factors, along with the increasing of furring thickness, both the temperature and efficiency reduced. Secondly, when wax thickness of oil pipe enhanced, the media temperature at outlet increases, but the efficiency reduces.

不利因素中影响最大的是伴热管道结水垢，随着水垢厚度的增加，油出口温度及伴热效率都降低；其次是油管结蜡，随着油管结蜡厚度的增加，油出口温度有所增加，但伴热效率降低。

Load spectrum determination of tubing inwall proves the tubing is acted by the axial alternating load in a rod pumped well, and all the fractures are located at the root of the tooth.

油管内壁载荷谱测定进一步明确了油管在工作状态下承受轴向拉-拉交变载荷，其断裂部位全部在应力集中的齿根处。

A tubing length intelligent measurer was developed in the light of low measuring accuracy,high labor intensity and low efficiency of manual measuring.

针对油管长度人工计量方法存在的计量精度差、工人劳动强度大、生产效率低等问题，研制了以单片微机为核心的油管长度智能计量仪。

Fruit dry, of two mericarps united by their faces, and usually attached to a central axis, from which the mericarps separate at maturity; mericarps are variously flattened dorsally, laterally or terete; each mericarp has 5 primary ribs, one down the back, two on the edges near the commissure, and two between the dorsal and lateral ribs, occasionally with four secondary ribs alternating with the primary, the ribs filiform to broadly winged, thin or corky; vittae usually present in the furrow (intervals between the ribs sometimes called the valleculae) and on the commissure face, rarely also in the pericarp, sometimes obscure.

果干燥，二分果瓣，通常附着在果瓣柄上，成熟时分离，分果瓣背面不同程度扁平，横向或者圆柱状；每分果瓣有5条主棱，一条背棱，2条侧棱，3条中棱，有时有4条与主棱互生的次级棱，棱丝形到形成宽翅，薄或木栓质沟槽和分果的合生面通常有油管（在棱和棱之间有沟槽，很少果皮上有油管，有时不明显。

The first ten tubes and the eightieth to ninetieth oil tubes located at the portal of oil well should be the main part for testing, and their important testing regions were presented also.

得出了油井中应重，点检测靠近井口的1~10和80~90根油管，给出了油管上的重点检测部位。

Fruit ovoid-globose, 4–5 × 3–4 mm, calyx teeth rostrate, persistent, bristles uncinate above, dilated at base; vittae 5, moderate, commissural vittae 2, larger.

球状果卵球形， 4-5 * 3-4 毫米，具喙，宿存的萼齿，具钩的刚毛在上面，膨大的在基部；油管5，适度，联合的油管2，大。

Groovy vitta cleans a method to chemistry is cleaned, physics is cleaned etc, however they are existing severally defect, clean the effect not beautiful, it is difficult to cannot be satisfied clean vitta clean a requirement.

常规的油管清洗方法有化学清洗、物理清洗等，然而它们各自都存在着缺点，清洗效果不佳，无法满足难清洗油管的清洗要求。

An atomatic modeling program is developed to establish the parameterized finite element model of such joints with damaged teed, the elastoplastic contact characteristics and stress-strain of threaded tubing joists are analyzed by the software of ANSYS.

开发了存在螺牙损伤的油管螺纹接头参数化有限元自动建模程序，应用ANSYS软件对缺牙油管螺纹接头进行了弹塑性接触特性及应力应变分析。

Downhole throttling technology is to adjust downhole pressure through installing the throttle valve in an appropriate position on the tube. The gas flowing through the throttle valve is heated up by the geotherm and the conditions of gas hydrate formation are changed, so as to effectively prevent gas hydrate formation, decrease transportation pipeline pressure, eliminate attemperator, and reduce the cost of gas production.

井下节流技术将井下节流器置于油管某一适当位置来实现井筒节流降压，并充分利用地热对油管内流体加热，使节流后气流温度高于节流后压力条件下的水合物形成初始温度，从而达到降低地面管线压力，取消地面加热保温装置、降低气井开采成本的目的。

A method of retrievably deploying an electrically driven downhole well fluid transducer system, such as an electrical submersible pump, comprises installing a production tubing (1), which is equipped near its lower end with one part of a wet mateable electrical connector (35) and an external electric conduit (15), and subsequently lowering the fluid transducer system, which is equipped with another part of a wet mateable electrical connector through the tubing until the wet mateable connector (19) parts engage each other.

本发明公开了一种可撤回地部署电动井下抽流器系统的方法，所说电动井下抽流器系统例如是一个电潜泵，该方法包括步骤：安装一生产油管(1)，靠近其下端处装备了可湿接电气接插件(35)的一个部件和一条电缆导管(15)；所说抽流系统上装备了可湿接电气接插件的另一个部件，随后将抽流系统经油管进行下放，直到使可湿接接插件(19)的两个部件相互接合到一起为止。

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。