顺北油田“三高”油气井试井工艺技术  

Well test processes of oil and gas wells with“three highs”in Shunbei Oilfield

作　　者：崔龙兵[1] 刘练[1] 周生福 邹伟[1] 李旭华 王红兵 CUI Longbing;LIU Lian;ZHOU Shengfu;ZOU Wei;LI Xuhua;WANG Hongbing(Completion and Well Test Management Center,Sinopec Northwest Oilfield Company,Luntai,Xinjiang 841600,China)

机构地区：[1]中国石化西北油田分公司完井测试管理中心,新疆轮台841600

出　　处：《油气井测试》2020年第3期57-63,共7页Well Testing

摘　　要：顺北油田超深超高温高压含腐蚀介质油气井试井作业一次成功率不到90%。历年试井资料表明,影响试井作业一次成功率的关键因素是压力、温度,流体性质,地层出砂或岩屑,管柱弯曲变形及投捞工艺等。针对上述要素,建立了一套包括优选井口装置、仪器串、压力计,制定井口及管串遇阻技术措施,优化通井工艺,改进投捞工具工艺,设计防落井装置等手段在内的试井作业工艺技术。经对30井次的应用评价,压力恢复试井、产能试井、干扰试井等试井作业一次成功率100%。该技术在保证安全的前提下,保障资料的成功录取,为类似井况提供了有效解决方案。Due to the extra depth,high temperature,high pressure,and corrosive fluid,the one-run success rate of well test in the Shunbei Oilfield is less than 90%.Historical well test data indicate that the key factors that affect the success rate include pressure,temperature,fluid properties,sand or cuttings,bent and deformed string and fishing process.A well test process has been developed,which is equipped with optimized wellhead,tool strings and pressure gauges,effective technical measures for stuck wellhead and tool strings,and improved drifting,fishing and protecting tools.Applications in 30 wells,including pressure buildup test,productivity test and interference test,have proved the one-run success rate is 100%.This technology is not only safe,but also successful for data collection.It provides an effective solution to similar well conditions.

关 键 词：顺北油田 高温高压油气井 试井 腐蚀介质 压力恢复试井 成功率 

分 类 号：TE353[石油与天然气工程—油气田开发工程]