CAJ | 학술논문

小井眼及套变井压裂与常规井眼压裂不同,需要配套相应的小直径井下工具和抗高压的井口装置,对压裂液的携砂性、抗剪切性及降摩阻性能都有更高的要求.为解决小井眼及套变井的压裂难题,针对小井眼及套变井的特点和目前小直径工具的实际情况,研制和改进了Y341-70和K341-98小直径封隔器,完成了Φ89 mm、Φ127 mm套管小井眼井和Φ139.7 mm套变井的压裂工艺管柱设计与配套,优化了压裂液体系和压裂工艺,成功完成了40多井次的现场施工,见到了良好的压裂效果.
소정안급투변정압렬여상규정안압렬불동,수요배투상응적소직경정하공구화항고압적정구장치,대압렬액적휴사성、항전절성급강마조성능도유경고적요구.위해결소정안급투변정적압렬난제,침대소정안급투변정적특점화목전소직경공구적실제정황,연제화개진료Y341-70화K341-98소직경봉격기,완성료Φ89 mm、Φ127 mm투관소정안정화Φ139.7 mm투변정적압렬공예관주설계여배투,우화료압렬액체계화압렬공예,성공완성료40다정차적현장시공,견도료량호적압렬효과.
Fracturing in slim hole and casing deformation wells is different from the fracturing in general holes. It needs to be equipped with the downhole tools of minor diameters and wellhead devices resistant to high pressure, reauires a lot on the carrying capacity, anti-shear performance, and the performance of reducing friction. In order to solve the difficulties in fracturing in slim hole and casing deformation wells,according to the specialty of slim hole and casing deformation wells and the reality of minor diameter downhole tools,the Y341-70 packer and K341-98 packer are developed and the design of downhole technique string is accomplished for φ89 mm and φ127 mm casing slim hole wells and φ139.7 mm casing deformation wells. The fracturing fluid and fracturing operation are optimized. The technology is successfully accomplished on more than 40 wells and achieves good effect.