中国石化新闻网讯 据世界石油新闻2020年10月15日休斯敦报道，美国威德福国际公司的浅角快速切割系统（Shallow Angle QuickCut System）日前成功实现了全球钻井行业的首次12-1/4英寸套管侧钻，从而在墨西哥湾的一口超深水井的一次起下作业中交付了一个22英尺的套管窗口。

威德福国际公司北美Geozone副总裁奇普·米勒说，“运营商联系了威德福国际公司，要求后者在一根12-1/4英寸的厚壁套管中完成一个墨西哥湾超深水出口。这个成功的12-1/4英寸侧钻套管成为了钻井行业的首创，但由于需要取得一个足够低到能使生产封隔器安全通过生成窗口的“狗腿”，这就使得问题变得更加复杂。”

利用其长达数十年的厚壁套管成功出口的历史，威德福国际公司和运营商部署了浅角快速切割系统，在一次起下作业中磨铣出22英尺的套管窗口和15英尺的鼠洞。

米勒说，“这个行业首先作为一个最佳实践为成功退出厚壁套管服务，而同时允许运营商安全高效地开发未波及的储层部分。”

李峻 编译自 世界石油新闻

原文如下：

Weatherford achieves ultra-deepwater sidetrack milestone

Weatherford International’s Shallow Angle QuickCut System successfully achieved the industry's first 12 ?-in. casing sidetrack, delivering a 22-ft. window in a single trip for an ultra-deepwater well in the Gulf of Mexico.

"The operator contacted Weatherford to perform a Gulf of Mexico ultra-deepwater exit in a 12 ?-in. heavy wall casing," said Chip Miller, Vice President, North America Geozone, Weatherford. "This successful 12 ?-in. sidetrack casing became an industry first, made even more complicated by the need to achieve a dogleg low enough for production packers to safely pass through the resulting window."

Leveraging its decades-long history of successful exits in heavy-walled casing, Weatherford and the operator deployed the Shallow Angle QuickCutand milled the 22-ft casing window and 15-ft rat hole in a single trip.

"This industry-first serves as a best practice for successfully exiting heavy wall casing, opening up a contingency scenario that was previously not feasible while at the same time, allowing operators to tap into bypassed reservoir sections safely and efficiently," said Miller.