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首页> 外文会议>SPE Asia Pacific improved oil recovery conference (APIORC 01) >Simultaneous Snubbing and Drilling Operation on Long Reach Multi Lateral Improves Field Economics
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Simultaneous Snubbing and Drilling Operation on Long Reach Multi Lateral Improves Field Economics

机译：在长距离多侧井上同时进行压井和钻井作业，提高了现场经济性

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When Petronas Carigali, the national oil company ofrnMalaysia, planned the development of its platform EWDP-Arnoffshore Sabah, they did so on the basis of using coiled tubingrnfor any thru-tubing workover operations which were neededrnwhile the drilling rig was still in place. In this way therndrilling rig could be fully utilized for drilling operations, thusrnmaximizing the efficiency of, and minimizing the total timernfor, the development. Well EW 117 was completed on thisrnplatform as a level 6 Multilateral in July 2000 with dual 3-1/2”rntubing strings accessing two laterals with measured depths ofrn14,910ft. And 15,236ft., respectively. The clean-out andrnperforation operations commenced with coiled tubing with thernrig assisting. However, due to a combination of the tortuosityrnand the lengthy horizontal sections of the laterals, it was notrnpossible to reach bottom with coiled tubing because of thernhigh frictional forces encountered.rnAfter consideration of several alternatives arnfeasibility study was undertaken to explore the possibility ofrnusing a Hydraulic Workover (Snubbing) unit to perform the –rnthru-tubing operations concurrent with the continuing drillingrnactivity. The study concluded that, with some customrndesigned handling equipment, a special tapered workstringrnand strict adherence to a permissible concurrent activityrnmatrix, this approach was indeed feasible. The operation wasrnperformed in February 2001 and the well made available forrnproduction by the beginning of March. Throughout thernworkover operation the drilling rig sequence remained inrnaccordance with plans, apart from a period of 14 hoursrndowntime while moving the Snubbing unit into its workingrnlocation.rnThis paper will review the problem encountered, thernmotive forces applicable, the feasibility study and the resultantrncustom designed equipment and workover operation. It willrndiscuss on the integrated team approach and detailed planning,rnin which active participation from Petronas Carigali, therndrilling contractor and several service companies resulted in arnsuccessful operation.
机译：当马来西亚国家石油公司Petronas Carigali计划开发其平台EWDP-Arnoffshore Sabah时，他们之所以这样做是基于在所有钻机仍在使用的情况下，对任何油管修井作业都使用连续油管。这样，钻机可以完全用于钻井作业，从而最大程度地提高了开发效率，并缩短了开发总时间。 EW 117井于2000年7月在该平台上完成为6级多边钻探，双3-1 / 2”钻管柱进入了两个测得的深度为rn14,910ft的分支井。和15236英尺。清理和打孔操作始于在热钻协助下的连续油管。但是，由于曲折度和支管的较长水平段的结合，由于遇到了很大的摩擦力，所以不可能用连续油管到达底部。在考虑了几种选择之后，进行了可行性研究，以探讨使用液压修井的可能性（钻取）单元在连续进行钻探活动的同时执行–nthru-tubing操作。该研究得出的结论是，使用一些定制设计的装卸设备，特殊的锥形工作弦并严格遵守允许的并行活动矩阵，这种方法确实是可行的。该作业于2001年2月进行，并于3月初投入生产。在整个修井作业中，钻机序列与计划不符，除了将缓冲装置移入其工作位置的停机时间为14小时。本文将回顾遇到的问题，适用的动力，可行性研究以及由此产生的定制设计的设备和修井操作。它将讨论团队的综合方法和详细的计划，其中Petronas Carigali，钻井承包商和多家服务公司的积极参与导致了成功的运营。

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