The successful application of expansion positioning multilateral well technology and its tool in well A22h of Chengbei oil field has increased the oil production from 11 m3/d of old well to 112 m3/d of branch hole, and got obvious economic benefit.
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膨胀管定位分支井技术及其工具在埕北油田A2 2h井的成功应用 ,使原来产油 11m3/d的老井通过分支井达到产油 112m3/d ,取得显著的经济效益。
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