摘要
带有MWD、测井仪器等非常规钻具结构钻井施工过程中,快速有效的重建堵漏通道是一项世界性技术难题,为解决因常规PBL随钻堵漏装置在使用中水眼不够畅通,堵漏次数受限,完成堵漏后无法将堵球及时取出,堵漏5次后需要起下钻才能将随钻堵漏装置球篮内堵球取出,方能进行二次入井使用等难题,利用超系统的无偿资源泥浆浮力,再通过系统内的泵压为动力,研制了多功能随钻堵漏旁通装置,通过泵压推动球座活塞下行,打开旁通,建立二次堵漏通道,在完成堵漏后只需停泵,球座活塞自动复位,关闭旁通,再利用自浮投捞载体依靠泥浆浮力将堵球取出,恢复正常钻进,从而缩短堵漏施工时间,消除因井漏引发的各项安全事故,保护油气,助力油气田安全、环保、有效的开发,具有较好的推广应用前景。
In the process of drilling construction with unconventional drilling tools such as MWD and logging tools, it is a worldwide technical problem to quickly and effectively reconstruct the plugging channel. For example, the water hole of conventional PBL plugging device while drilling is not unblocked and the plugging times are limited.The plugging ball cannot be taken out in time after completing the plugging,and after five times,the plugging ball in the basket of the plugging device while drilling needs to be pulled out of before it can be used for the second time.In view of the above problems,a multifunctional bypass device for plugging while drilling is developed by using the free resource mud buoyancy of the super system and thingking of the pumping pressure as the power. In addition,the ball seat piston is pushed down by pump pressure to open the bypass and establish a secondary plugging channel.After the plugging is completed,the pump only needs to be stopped to reset the ball seat piston automatically, close the bypass, and then use the self-floating fishing carrier relying on mud buoyancy to plug the ball out and restore normal drilling, which shortens the plugging construction time and eliminates the safety accidents caused by lost circulation.Only in this way can it protect and help the safety, environmental protection and effective development oil and gas field with good prospects for promotion and application.
作者
张耀先
李开荣
妥红
张勇
张勇
ZHANG Yaoxian;LI Kairong;TUO Hong;ZHANG Yong;ZHANG Yong(Western Drilling Engineering Co.,Ltd.,CNPC;Chuanqing Drilling Engineering Co.,Ltd.,CNPC;Bohai Drilling Engineering Co.,Ltd.,CNPC)
出处
《石油石化节能》
2023年第1期10-14,共5页
Energy Conservation in Petroleum & PetroChemical Industry
关键词
随钻堵漏
井漏
旁通装置
自浮投捞载体
堵球
plugging with drilling
lost circulation
bypass device
self-floating and fishing carrier
plugging ball
