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针对萨中油田 10 1 6mm套管井采油工艺技术的需要 ,研制了Y2 11— 76型小直径封隔器。这是一种单向卡瓦支撑、重力坐封、上提管柱解封的压缩式封隔器 ,总长 787mm ,最大外径76mm ,最小通径 2 8mm ,设有防转动导向滑道 ,密封胶筒为压缩式三组合胶筒。该型封隔器与小直径锚定器配套使用 ,在锚定器定位支撑管柱后 ,依靠重力实现坐封。 3井次的现场试验表明 ,Y2 11— 76型小直径封隔器不仅适用于侧钻井 ,更适用于直井 ,在用于喷射泵采油和找漏施工中 ,坐封合格率 10 0 % ,现场施工成功率 10 0 %。
Aiming at the need of 1016mm cased hole production technology in Sazhong Oilfield, Y211-76 small diameter packer was developed. This is a one-way slip support, gravity setting, lifting the string unwinding compression packer, the total length of 787mm, the maximum diameter of 76mm, the minimum diameter of 28mm, with anti-rotation guide slide, seal Plastic cartridge for the compression of three combinations of plastic. The packer is used with a small diameter anchor to position the anchor by means of gravity after the anchor has been positioned to support the column. The field test of 3 wells shows that Y2 11-76 small diameter packer is not only suitable for side drilling but also for vertical well. In the construction of jet pump and leak detection, the pass rate is 100% Construction success rate 10 0%.