中1H侧钻短半径水平井钻井技术

2007年 14卷 第01期
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Sidetracking Technology of H or izontalW e llM iddle
1H with Short Radius
蔡 元
Cai Yuan
中原石油勘探局钻井一公司, 河南濮阳457331
( NO. 1 Dr illing Company of ZPEB,
SINOPEC, Puyang 457331, China).
中1H 井是塔中卡塔克1区块的一口侧钻短半径水平井, 先后采用了多种较为
先进的生产工艺, 如锻铣开窗技术、定向侧钻技术、小井眼短半径水平井技术、欠平衡钻井技
术、高钙盐钻井液体系的推广应用等, 施工程序复杂。历时142. 75 d完成了这口技术密集的
评价井, 试油见到了良好的油气显示, 社会效益、经济效益显著。
Well Middle 1H is a sidetracking hor izonta l we ll w ith
short radius sited in them iddle area of Tarim, Ka tac block 1.
Severa l k inds o f advanced techniques w ere used in th is w ell
such as forg e m illing s ide open ing techno logy, d irectiona l
sidetrack ing techno logy, sm all ho le short rad ius horizonta l
w e ll drilling techno logy, unde rbalance drilling techno logy and
spreading app lication o f h igh calc ium salt mud system. The
operation process is very comp licated. A fter 142. 75 days􀀁
hard w ork ing o f severa l technic ians, the w ell is comp le ted.
O il and g as show is good a fter o il test and the so cial and
econom ic benefit is obv ious.
中1H 水平井 高钙盐 欠平衡;
M idd le 1H, H orizonta lw e l,l H igh ca lcium
sa lt, Underba lance, O il test;