扩孔加大了环空间隙，固井后水泥环厚度和强度增大，可以延长侧钻小井眼油井寿命。
The annular clearance was also enlarged, thus the thickness and strength of the cement sheath was increased, and the oil well life of the sidetracked slim hole was also prolonged.
套管开窗侧钻小井眼水平井钻井技术的特殊性及复杂性给传统常规录井带来了严峻的挑战。
The particularity and complexity of sidetracking horizontal wells through the opened casing hole has brought severe challenges to conventional mud logging.
分析了中原油田开窗侧钻小井眼固井技术的难点，并针对性地提出了解决小井眼固井的技术措施。
The article analyses the main technical difficulty in cementing small hole well and proposes the acupuncture treatments.
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