Oil well casing Stone with a short tube plus an average of just 20 yuan per well, you can eliminate the phenomenon of burglary valve casing. "This is the recent five Central China Oil Plant in Hu 5-124 well site held a cesspool valve security watch the scene at the meeting, the second team of Chang Chih-jun on the team invented a new type of casing valve anti-theft device - casing four The introduction of the principle of short-section with the protection of the tube, the production process and the effect of the implementation of the scene described in detail.Since the metering station closer to the village, these metering station casing valve has become the target of some criminals to implement the theft .Although before Workers will casing valve clamps welding torch, but unscrupulous elements often use small workers to run the gap, take the clamps forcibly unzipped or the casing cut short four-section method to steal the casing valve , Up to once, a week lost five casing valve.In response to this situation, after careful study and repeated experiments, workers design and manufacture of casing with four-way short tube plus protection, even if the law-breaking molecular diameter 159 Mm short section, but also can not be sawed within the welded wire rope, so as to achieve the purpose of anti-theft.The device is easy to use, less investment, the average investment of only 20 yuan per well, according to a casing valve 410 yuan calculation, one year to restore direct economic losses of more than 60,000 yuan.At present, the device has been in more than 20 wells to try, and no loss of casing valve phenomenon, cracking down on the theft of lawless elements to avoid The loss of supplies to ensure the normal production wells.