长庆油田长停井生产测井组合找漏技术  

Leak detection technology of production logging combination for long-term shutdown well in Changqing Oilfield

作　　者：张金海 王中涛 谢海波 李桂山 曹娟 刘怡辰 ZHANG Jinhai;WANG Zhongtao;XIE Haibo;LI Guishan;CAO Juan;LIU Yichen(Geological research Institute,China Petroleum Logging Co.,Ltd.,Xi′an,Shaanxi 710000,China;Changqing Branch,China Petroleum Logging Co.,Ltd.,Xi′an,Shaanxi 710200,China)

机构地区：[1]中国石油集团测井有限公司地质研究院,陕西西安710000 [2]中国石油集团测井有限公司长庆分公司,陕西西安710200

出　　处：《油气井测试》2021年第5期61-67,共7页Well Testing

基　　金：陕西省重点研发计划项目“鄂尔多斯盆地低渗透油藏剩余油测井评价技术与应用”(2021GY-113)。

摘　　要：为进一步开发长停井地层剩余油,治理套损高含水井,对长庆油田3100余口长停井现状进行调研,并在Z277示范区块采用不同生产测井组合技术进行找漏。通过传统井径测井技术找到套损部位,将长停井进行临时改注作业,打破井筒内流压平衡,产生负压流体,结合流量、井温、噪声等测井手段,对明确出水点的井进行封堵。结果表明,X井改造后恢复生产,日产油量2.0 t。用组合找漏技术对该区块多口井重复验证,平均产量达到1.97 t/d。该技术应用于长停套损井综合治理,能有效找出套管漏失出水点,经济效益显著,具有推广价值。In order to further develop the remaining oil of long-term shutdown well and control the casing damage of high-water cut wells,the current situation of more than 3100 long-term shutdown wells in Changqing Oilfield is investigated,and different production logging combination technologies are used to find leakage positon in Z277 demonstration block.The casing damage position is found through the traditional caliper logging technology,and the long-term shutdown well is temporarily changed to injector,to break the balance of flow pressure in the wellbore and produce negative pressure fluid.In combination with flow,well temperature,noise,and other logging means,clear water outlet point of the well is blocked.The results show that the production of Well X is resumed after reconstruction,and the daily oil production is 2.0 t.The combined leak detection technology is used to repeatedly verify multiple wells in this block,and the average production is 1.97 t/d.This technology is applied to the comprehensive treatment of long-term shutdown wells with casing damaged,which can effectively find out the water leakage point of casing,with remarkable economic benefits and popularization value.

关 键 词：高含水井 套损井 长停井 生产测井 找漏 综合治理 老井挖潜 剩余可采储量 

分 类 号：TE358[石油与天然气工程—油气田开发工程]