油管输送射孔抽油泵联作技术研究与应用

On Joint Operation of TCP and Oil-pump-running and Its Applications

为了避免射孔后压井取管柱再下抽油泵对地层造成的再次污染 ,开发了油管输送射孔 (TCP)与有杆抽油泵联作工艺技术。该技术是将油管输送射孔与采油或注水管柱结合起来 ,使射孔完井与新井下抽油泵用一趟管柱完成。介绍了联作的原理与工艺流程、抽油泵的选择原则、射孔枪爆炸压力与压力传播试验分析 ,应用管柱力学软件对抽油泵的受力进行分析、计算及强度校核。在此基础上 ,设计了合理的下井管柱结构 ,在大庆油田采油三厂和八厂现场应用 ,一次获得成功 ,见到了明显的效果。该工艺尤其适用于高压、异常高压油层的生产井 ,可提高射孔完井效率 ,又可预防井喷事故发生 ,减少作业次数。

If abnormal high pressure exists in perforated intervals, there must be a well blowout after perforation, thus, polluting the ground surface. In the follow-up well control and casing string withdrawal operations, the surface will be polluted again. To solve the above problem, a joint operation technology about TCP(tubing conveyed perforation) and rod oil pump has been developed. This technology is to run or set the perforator at a time along with the oil pump through tubing into the borehole, and directly start oil recovery without string withdrawal. Principles of the joint operation and process flow, selection of oil pump, the pumps' loaded force and strength verification are introduced in the paper. The operation technology is successfully used in the No.3 and No.8 oil recovery plant in Daqing Oilfield.