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研制的简易酸化井口装置由保护法兰、过渡短节、卡箍、闸阀、三通和抗振压力表等组成。酸化施工时 ,先拆除CYB 2 50井口大四通以上的部件 ,把过渡短节旋入CYB 2 50井口油管挂中 ,将保护法兰与大四通用螺栓连接 ,并压紧CYB 2 50井口油管挂 ,地面管汇输送来的高压液体可通过三通、过渡短节、油管挂和油管柱直接进入地层。河南石油勘探局采油厂共推广应用这种井口 8套 ,使用 89井次。使用结果表明 ,简易酸化井口与CYB 2 50井口配套使用 ,安装方便 ,安全可靠 ,抗腐蚀性能好 ,正常使用压力为 2 0～ 38MPa,成功率 1 0 0 % ,价格仅为常用简易酸化井口的三分之一。
Developed simple acidification wellhead device by the protection of the flange, transitional short section, clamp, gate valve, tee and anti-vibration pressure gauge and other components. During the acidification construction, disassemble the parts of the CYB 2 50 wellhead with more than four passes, screw the transition short section into the tubing string of CYB 2 50 wellhead, connect the protection flange with the general-purpose universal screw and press CYB 2 50 wellhead tubing Hanging, high pressure liquid delivered from the ground manifold can enter the formation directly through the tee, transitional short section, tubing hanger and tubing string. Henan Petroleum Exploration Bureau production plant to promote the use of this wellhead 8 sets, the use of 89 wells. The results show that the simple acidification wellhead is used with the well of CYB 2 50, which is convenient for installation, safe and reliable, with good corrosion resistance. The normal working pressure is 20 ~ 38MPa and the success rate is 100%. The price is only for common acidizing wellhead one third.