水力泵排液测试中的不压井作业技术  

Snubbing technology in hydraulic pump discharge test

作　　者：肖志永 李超 刘皓 刘喆 焦金龙 钱虎 XIAO Zhiyong;LI Chao;LIU Hao;LIU Zhe;JIAO Jinlong;QIAN Hu(Testing Branch,PetroChina Daqing Oilfield Co.,Ltd.,Daqing,Heilongjiang 163412,China)

机构地区：[1]中国石油大庆油田有限责任公司试油试采分公司,黑龙江大庆163412

出　　处：《油气井测试》2021年第4期26-31,共6页Well Testing

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目“气井带压作业技术推广”(2020B-4121(GF))。

摘　　要：高压油气井压井作业易造成地层污染,导致油气井在一段时间内难以恢复到施工前的产能状态,不利于油、气井求产。通过分析不压井作业工程参数,使用不压井作业设备下入水力泵排液测试管柱,只要压力在额定压力之内,即可进行不压井作业下水力泵排液。通过4井次不压井作业现场应用,及对2015年、2016年水平井施工动态数据的收集整理发现,使用不压井作业后,从钻完桥塞开始放喷至下完水力泵排液管柱的平均时间由904 h缩短至190 h。水力泵排液测试中的不压井作业技术可有效减少地层污染,缩短施工周期,是未来测试地层产能的发展趋势。The killing operation of high-pressure oil and gas wells is easy to cause formation pollution and make it difficult for oil and gas wells to return to the pre-construction productivity state in a period of time,which is not conducive to the production of oil and gas wells.By analyzing the engineering parameters of snubbing operation,using the snubbing equipment to run the hydraulic pump discharge test string,if the pressure is within the rated pressure,the hydraulic pump discharge can be carried out under the snubbing operation.Through the field application of four wells of snubbing operation and the collection and collation of the dynamic data of horizontal well construction in 2015 and 2016,it is found that after using snubbing operation,the average time from the start of blowout after drilling bridge plug to the completion of discharge after run in hydraulic pump string is shortened from 904 h to 190 h.The snubbing technology in hydraulic pump discharge test can effectively reduce the formation pollution and shorten the construction period,which is the development trend of formation productivity test in the future.

关 键 词：不压井作业 水力泵 排液 压裂 地层污染 产能 施工周期 

分 类 号：TE358[石油与天然气工程—油气田开发工程]