电缆传输分级选发安全射孔系统  

Wireline conveyed safety perforation system for staged and selective perforation

作　　者：马友龙 MA Youlong(Well Testing Company of PetroChina Daqing Oilfield Company Limited,Daqing,Heilongjiang 163412,China)

机构地区：[1]中国石油大庆油田有限责任公司试油试采分公司,黑龙江大庆163412

出　　处：《油气井测试》2018年第4期21-26,48,共7页Well Testing

摘　　要：大庆油田主力厚油层产量逐渐递减,薄油层相继投入开发,导致电缆传输射孔单井起下射孔枪次数增多,施工周期长,井控安全风险大,电缆寿命缩短。为此,研发了电缆传输分级选发安全射孔系统,主要由爆炸桥丝起爆系统和电子选发分级射孔系统组成。该系统用安全性高的爆炸桥丝起爆系统代替有起爆药的电火工品,仅需在射孔枪身中增加一条贯穿线和一块电子开关,配合地面控制面板和射孔测量控制系统,即可实现采用电缆一次将多支射孔器输送下入井中进行多次选择性射孔。该系统在大庆油田累计应用76次,共完成231级起爆,工艺成功率100%。X5-4-X610井和X3-丁1-X67井的现场应用表明,该系统减少了单井下井次数,提升了电缆射孔施工的安全性,保证了安全施工和分级起爆的成功率,为多层分级射孔设计及施工提供了借鉴。With the decreasing production of the main thick oil layers in Daqing Oilfield,the thin oil layers have been put into development successively,which leads to many problems in the wireline conveyed perforating,such as the increase in the tripping number of perforating guns in single wells,the construction period and risk of well control safety increases,and the cable life is shortened. In order to avoid these problems,this paper has developed a safety perforation system of wireline conveyed perforating,which is mainly composed of an explosion bridge wire detonation system and an electronic selective staged perforation system. The system uses a highsecurity explosive bridge wire detonation system to replace the electric explosive devices with initiator. It only needs to add a throughline and an electronic switch to the perforating gun body to match the ground control panel and the perforation measurement control system. It is possible to carry out multiple perforating guns into the well by wireline once for multiple selective perforation. The system has been applied 76 times in Daqing Oilfield,and completed a total of 231 detonation with a success rate of 100%. The field application of well X5-4-X610 and X3-Ding1-X67 shows that the system reduces the number of trips in a single well,improves the safety of wireline perforation construction,and ensures the success rate of safe construction and staged detonation. All of these advantages provide a reference for the design and construction of multi-layer perforation.

关 键 词：电缆传输射孔 多层 分级射孔 电子选发 起爆装置 电子开关 射孔弹 

分 类 号：TE353[石油与天然气工程—油气田开发工程]