长庆油田长停井生产测井组合找漏技术-《油气井测试》

文章信息/Info

Title:: Leak detection technology of production logging combination for longterm shutdown well in Changqing Oilfield

作者:: 张金海1; 王中涛1; 谢海波2; 李桂山2; 曹娟2; 刘怡辰1; 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

Author(s):: ZHANG Jinhai1; WANG Zhongtao1; XIE Haibo2; LI Guishan2; CAO Juan2; LIU Yichen1; 1.Geological research Institute, China Petroleum Logging Co., Ltd., Xi′an, Shaanxi 710000, China
2.Changqing Branch, China Petroleum Logging Co., Ltd., Xi′an, Shaanxi 710200, China

Keywords:: ;
high water cut well; casing damage well; long shutdown well; production logging; leak detection;
comprehensive management; old well production potential tapping; remaining recoverable reserves

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3 100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。

Abstract:: 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 3 100 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.