Shijiazhuang drill pipe tells you what is overflow and well kick

Classification:

Company News

Release time:

2019-08-26

【Summary Description】 Shijiazhuang drill pipe tells you what is overflow and well kick

石家庄钻杆

During the drilling process, when the downhole high-pressure layer is encountered and the fluid column pressure of the wellbore is lower than the formation pressure, a continuous stream of mud will flow from the drill pipe at the wellhead or the rotary table surface of the drilling rig,Shijiazhuang drill pipeI tell you this is what we call a well overflow, and a growing well overflow will create a kick.

When drilling overflow and well kick occur, if measures are not taken in time, the amount of well kick will gradually increase, the more and more ejecta will spray, the higher the blowout, and finally the blowout will occur.

Overflow and kick of drilling are the precursors of blowout. In the process of drilling, when drilling overflow or kick is found, the operator should first correctly judge whether the phenomenon is accurate and whether there is any influence of other external factors.

After verification, the drilling foreman shall give instructions and alarms immediately, and all on-the-job personnel of the drilling crew shall take their positions and perform their duties.Shijiazhuang drill pipeIt also tells you that if the drilling site conditions permit, the drilling tools in the well should be as deep as possible, which is good for the next step to deal with the accident. Then, it shall be handled according to the drilling well control operation regulations. First, close the drilling BOP, carry out controlled blowout and organize force to kill the well.

There are many ways to judge drilling overflow and well kick. At present, the most widely used methods are drilling fluid flowmeter and drilling fluid level indicator, which can also be monitored by drilling geological comprehensive logging instrument.StoneJiazhuang drill pipeofThe sooner the drilling overflow is found, the better. Especially in the process of drilling into high-pressure gas layer, when the natural gas returns with mud from the bottom of the well to the wellhead, due to the continuous reduction of pressure and the continuous expansion of the volume of natural gas, the more mud will be discharged when approaching the wellhead, and the shorter the time from overflow to blowout will be.

石家庄钻杆

Key words:

weilida drill