石油钻采工艺2016，Vol.38Issue(4)：510-513,4.DOI:10.13639/j.odpt.2016.04.020
水平井定向堵水技术在云2平4井的应用
Application of horizontal well directional water plugging technology in Well Y2-P4
吝拥军 1王宏华 1付波 1吴桂英 1李素芹 1穆哈拜1
作者信息
摘要
Abstract
Cementation is usually not conducted outside the casing in horizontal section of a horizontal well completed by screen pipe, and the application of conventional water detection and shutoff tools is restricted. In this regard, the horizontal well directional water plugging technology was discussed for its applicability in Well Y2-P4 in the Zhongyuan Oilfield. Special K344 packer was used to seal the pre-determined section, and the high performance plugging agent annular chemical packer (ACP) was placed directionally to realize separation of formation outside the casing that was not cemented. Then, special K344 packer was used to verify the plugging effect of the ACP. Finally, special bayonet-tube packer was used to inject large volume of high performance plugging agent (ZR-PD) into the formation, so as to achieve the plugging of water-producing interval of horizontal section. Field application shows that, after water plugging, the average daily incremental oil was 3.7 t, and the water cut dropped by 4.5%. By the end of 2015, the interim total incremental oil was 1 023.6 t, the total decremental fluid was 22 983 m3, and the interim effective period was 398 d. The horizontal well directional water plugging technology is highly specific to certain application, and it can realize high success and apparent oil increasing and water decreasing effect.关键词
水平井/筛管完井/环空化学封隔器/胶束微膜堵剂/定向堵水/中原油田Key words
horizontal well/screen completion/annular chemical packer/micelles microfilm plugging ageint/directional water plugging/Zhongyuan Oilfield分类
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吝拥军,王宏华,付波,吴桂英,李素芹,穆哈拜..水平井定向堵水技术在云2平4井的应用[J].石油钻采工艺,2016,38(4):510-513,4.
