英语翻译Directional-Drilling Sidetrack:A-6 AH:7315 to 8348 m.The

英语翻译
Directional-Drilling Sidetrack:A-6 AH:7315 to 8348 m.The well path was followed as planned,with a maximum DLS of 5.7°/30 m in the kickoff section and 68° inclination throughout the Draupne formation.It was found that the Draupne formation had collapsed for the second time when attempting to run in hole with the new BHA,and a decision was made to perform a second sidetrack on cement below the 103/4-in.Shoe instead of risking stuck pipe in this unstable formation.
Directional-Drilling Main Section:A-6 AHT2:7300 to 9082 m.The Draupne formation was drilled with 65°inclination approximately 100 m away from the other well penetration points and the fault zone.The dip log showed that the relative angle between the formation and the well was good,with an average of 17°.The 1782-m section was drilled in one run as planned with a maximum DLS of 5.87°/30 m and 65°inclination across the Draupne,which was enough to keep the formation stable.The primary objectives of the well were fulfilled,and the TD of the well was set.
7-in.Liner.The 7-in.29-lbm/ft liner was run successfully to 9080 m MD.Generally,low friction was experienced while running in,matching a friction factor trend of 0.10 and 0.25 for casing and open hole,respectively.The running string consisted of approximately 2000 m of 51/2-in.HWDP above the 7-in.liner and 57/8-in.DP to surface.Restrictions were encountered at 7924 to 7950 m and at 8670 m,and rotation was established to run the liner through the restrictions.The 7-in.liner was set in place and cemented.
Subsea Cuttings Injection The well was prepared for cuttings injection in the annulus between the 20-in.and 133/8-in.casing.The well was fractured,and the annulus was displaced with treated seawater.A stable injection rate of 1000 L/min was achieved with a surface pressure of 90 bar.The formation below the 20-in.shoe at 1361 m MD is fractured upward to the shallower Utsira sand formation at 1000 to 1100 m.The plan is that cuttings and slop from subsequent wells will be injected into this formation.Before this well,the Visund field had only one operating cuttings injector,so it was important to have a backup cuttings-injection well.
Downhole Instrumentation and Control System (DIACS) Completion
A cleanout string was run to TD to scrape the casing wall and ensure free passage of the perforation guns.At TD,the well was displaced from oil-based mud to potassium formate brine and a kill pill by use of a wash train and seawater.The updated formation-pressure MWD data allowed the use of this brine.The string contained an alternating circulation tool to increase the rate in the 103/4-in.casing during mud conditioning and circulation of the wash train.This addition enhanced the cleanout operation considerably.

定向侧钻：一种- 6的AH ：7315至8348米良好的道路之后按计划进行,最大波5.7 ° / 30米的开球节和68 °倾角整个Draupne形成.结果发现,Draupne倒塌形成的第二次尝试时,在黑洞运行的新钻具组合,并作出决定,执行第二个侧对水泥低于103/4-in .擦鞋而不是管的危险坚持在这不稳定的形成.
定向钻主科：一个6 AHT2 ：7300至9082米Draupne形成的钻与65 °倾角大约100米以外的其他以及渗透点和断裂带.倾角测井表明,相对夹角的形成和良好良好,平均17 ° .在1782米钻一节中一分,按计划,最大波的5.87 ° / 30米和65 °倾角在Draupne ,这足以使形成稳定的.的首要目标以及得到满足,和运输署的以及成立.
7中.班轮运输.7中.29-lbm/ft班轮运行成功九零八零米博士.一般而言,低摩擦的经验,同时运行,与摩擦系数的趋势0.10和0.25套管和开放的洞,分别.运行字符串包括大约2000米的51/2-in .HWDP上述7中.班轮和57/8-in .压到surface.Restrictions上遇到了7924至七千九百五十零米和8670米,和轮换,建立运行班轮通过限制.7中.班轮运输是确立和巩固.
海底扦插注射该井是准备剪报注射液环之间的20 in.and 133/8-in .套管.该井是骨折,而且是流离失所环与治疗海水.一个稳定的注入速度为1000升/分取得了与表面压力为90列.形成低于20的.鞋在一千三百六十一米博士是裂缝向上的浅水Utsira沙形成的1000至1100年米该计划是,剪报及污水井随后将注入本形成.在此之前很好,Visund领域只有一个操作系统剪报喷油器,所以它必须有一个备份剪报,注水井.
井下仪器和控制系统（ DIACS ）完成
阿清洗字符串运行运输署,以刮削套管墙,并确保自由通行的射孔枪.在运输署,以及流离失所的油基泥浆钾离子甲酸,以盐水和杀死丸使用洗火车和海水.最新的地层压力随钻测量数据允许使用这种盐水.该字符串包含交替循环的工具,增加率103/4-in .套管在泥空调和流通的洗火车.这除了提高了清洗作业很大.
(Google翻译,仅供参考)