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目前,在我国的石油装备中,试采设备是最薄弱的一个环节。在大港油田的修井、试油作业设备中,8·8-80型履带式通井机占50％左右,它承担修井、试油作业工作量的85～90％,而大部分进口的或国产的轮胎式修井设备都处于停用状态,少数在用的也仅仅是因为履带式通井机处于修理、保养时期。停用的主要原因是进口修井机配件供应困难,作业井深浅,轮胎比压不够,雨季对油田道路和井场地面适应性差,部分整机的质量也差。相对来说,履带式通井机具有对路面和井场适应性强,作业井较深,工作可靠,结构简单,配件供应充足,易于维护保养等优点,因此在油田得到广泛使用。
At present, in China’s oil equipment, test mining equipment is the weakest link. In Dagang Oilfield’s workover and test oil operating equipment, the Model 8.8-8 Crawler Drilling Machine accounts for about 50% of the total work load. It undertakes 85-90% of the work load of workover and oil testing, while most of the imported Or domestic tire-type workover equipment are in the disabled state, a few are in use only because the track-type well machine is in repair, maintenance period. The main reason for deactivation is the difficulty of supply of spare parts for workover rigs, the depth of working wells and insufficient pressure of tires. The rainy season has poor adaptability to the road and well site of the oilfield and the quality of some complete machines is also poor. Relatively speaking, crawler wellhead has the advantages of strong adaptability to pavement and wellsite, deep working wells, reliable operation, simple structure, adequate supply of spare parts and easy maintenance. Therefore, it is widely used in oil fields.