摘要
井漏时,起钻更换堵漏钻具后再进行堵漏作业会导致堵漏不及时,进而引发井壁坍塌、卡钻和井喷等一系列事故。为此,研制了一种多次开关循环堵漏工具,可以实现不提钻进行堵漏作业,该工具通过地面投球方式控制开和关,多次投球实现多次循环堵漏,不影响井下仪器和动力钻具,不影响后续施工。经现场应用表明,发生井漏时,该工具能够实现多次堵漏作业,满足了现场使用需求。
When the well is leaking, the replacement of the drill string will result in a series of accidents, such asthe collapse of the shaft wall, sticking and blowout. For this reason, a Multi-cycle switch plugging tool is devel-oped, this tool can finish plugging without raising the rod, the tool uses the method of throwing balls on the drillfloor to control its switch. The whole operations affect neither the downhole instruments and other power toolsnor the subsequent operations.,and its application proved that the tool worked with effective and satisfied results,which met the needs of drilling development when the well was leaking.
出处
《新疆石油天然气》
CAS
2017年第4期79-81,共3页
Xinjiang Oil & Gas
关键词
井漏
随钻堵漏
井下工具
多次开关
投球
Well leakage
Plugging while drilling
Down-hole tools
Multi-cycle switch
Throwing balls
