摘要
针对常规封隔器密封部件承压能力仅为１８ＭＰａ，且控制部件可靠性差，以及不能满足水平井完井和采油工艺要求的问题，研制出ＴＦＳ—１４０—Ⅳ型套管外封隔器。这种封隔器的控制部件和密封部件设计合理，结构新颖，动作灵活可靠，承压能力达到４６ＭＰａ，能有效地封隔套管外环空和防止油、气、水混窜，并能经受４２ＭＰａ压裂作业的考验。在水平井中试验，封隔器坐封成功率、套管试压合格率和固井优质率均达１００％；在定向井及竖直井中应用，封隔器坐封成功率为９８％，套管试压合格率为１００％，固井优质率为９５％。
In view of the problem that conventional packers cannot meet the need
of horizontal hole completion and production with low pressure bearing capacity and bad
reliability, Model TFS140 external casing packer is developed. The controllable element and
sealing element of this packer is designed rationally with 46MPa pressure bearing capacity,
therefore the packer can operate effectively and reliably. Tests of the packer in horizontal holes,
directional holes and straight holes show that the packer runs perfectly in setting, pressure test
and well completion.
出处
《石油机械》
北大核心
1999年第3期31-33,共3页
China Petroleum Machinery
