泵杆

With the development of the oilfield, deviated wells, sidetracking wells and horizontal wells have more and more important function,whereas the particularity of casing programme limited the landing depth of sucker rod pump ,and affected the producibility of oil well seriously.

随着油田的开发，斜井、侧钻井、水平井等非直井在油田开发中起到越来越重要的作用，但由于井身结构的特殊性，限制了有杆泵的下入深度，严重影响了油井的生产能力，同时抽油井杆管偏磨，已成为非直井降低产量，增加作业成本、增加杆管成本的主要矛盾。

Third, in the industrial area of the screw pump for lubrication pump, the hydraulic system for hydraulic pumps, the fuel system for the transmission and the booster pump; in the pipeline for the transportation system and pumps.

三螺杆泵在工业领域中作润滑泵，在液压系统中作液压泵，在燃油系统中作输送及增压泵；在输油系统中作输送及加油泵。

In order to solve the phenomenon of the side wear and corrosion between the rod and the tube during the sucker rod pump's working process,wearable and antisepsis coatings was coated in oil tube ,and friction and wear properties between many types of oil tube and rod materials pairs were studied.

为了治理有杆泵井的管杆偏磨问题，在油管上喷涂了一层耐磨防腐涂层，并对比研究了抽油杆和油田常用的油管摩擦副及喷涂耐磨涂层后的油管摩擦副的摩擦磨损性能。

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than that in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

It is considered that fatigue crack is early produced on drill pipes, because the vibration load of drilling tools in air drilling is more severe than in mud drilling. Fatigue cracks easily occur under alternating vibration. Because the current wellhead detecting instruments can not be used to reflect the change of pump pressure produced after drill pipe piercement timely and accurately, effective measures can not be taken in time to prevent the expansion of fatigue cracks. As a result, drill pipe fracture accidents occur.

失效分析表明，钻杆属于早期疲劳断裂，断裂主要原因是在空气钻井过程中钻具受到的震动载荷远大于钻井液钻井过程中的震动载荷，在交变的震动载荷作用下，钻具容易产生疲劳裂纹；由于现有的井口检测仪表不能精确及时反映钻杆刺穿之后产生的泵压变化，无法及时采取预防措施，疲劳裂纹不断扩展，最终导致了钻杆断裂失效。

Chi Chun oil Shandong Machinery Co., Ltd., located in China's second largest oilfield Shengli Oil Field in Dongying City, Shandong location, the main tool for petroleum products for the manufacture and sale of the company for the China University of Petroleum relying on scientific research bases, leading products include: the use of the rigs Efficient wear shoes, duplex milling Cone, Cone window milling, Xitou sets, sets milling extinguishers, the mother Cone Cone, screw drill, screw pump drives, production efficiency devices, with oil production by pumping leakproof , Feng Jing, tubing collar, the collar rod, such as wellhead valves.

采油增效装置等。山东骏驰石油机械有限公司，位于中国第二大油田胜利油田所在地山东东营市，主营产品为石油专用工具制造及销售，公司依托中国石油大学为科研基地，主导产品包括：各型修井用高效磨鞋，复式铣锥，开窗铣锥，套铣头，套铣筒，公锥母锥，螺杆钻具，螺杆泵驱动装置，采油增效装置，采油增抽防漏器，封井器，油管接箍，抽油杆接箍，井口阀门等。

In order to design the rod string and analyze failure mechanism, the dynamics analysis on rod string of surface driving screw pump must be conducted.

地面驱动螺杆泵抽油杆柱动力学分析是杆柱设计、失效机理分析的关键技术。

This type of tubing anchor is constitute by anchor body,turnover slip and the centralizer,it is installed in the lower end of the PCP.When the rotor is rotating,it drives the shell and rotary anchor to rotate clockwise.In the role of the friction between turnover slip and the casing,the turnover slip turns over , its outer diameter increases,then it locks to the casing and the anchoring implements.

这种油管锚由锚体，翻板卡瓦和扶正体等组成，安装在螺杆泵下端，泵转子旋转时，带动泵外壳，旋转锚顺时针方向转动，在翻板卡瓦和套管摩擦力作用下，翻板卡瓦向外涨出，外径增大，卡封在套管上，实现锚定。

Therefore, the pump body with the outer surface of screw and screw and screw more space should be as small as possible.

因此，泵体与螺杆外圆表面及螺杆与螺杆间隙应尽可能小些。

Running faulty and type selection process are introduced for the slurry pump in phosphoric acid tank area, summarization is made for type selection of slurry pump, as well as for application effect after its reformation; by means of reformation for coupling of single screw pump imported, running rate is increased by 1%, phosphoric gain rate is increased by 3%.

介绍磷酸罐区泥浆泵的运行故障和改型过程，总结了泥浆泵选型及改造后的使用效果，通过对进口单螺杆泵联轴节的改造，运转率提高1％，磷酸装置磷得率提高3％。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。