第34卷第4期 2017年7月
钻井液与
究
井液
DRILLINGFLUID&COMPLETIONFLUID
doi: 10.3969/j.issn.1001-5620.2017.04.013
Vol. 34 No. 4 July2017
基于模糊数学的防气窜能力评价新方法及应用
李进1，高斌1，龚宁「，谢中成2，陈毅1，韩耀图（1.海洋石油高效开发国家重点实验室中海石油（中国）有限公司天津分公司，天津300459；
2.中海石油（中国）有限公司上海分公司，上海200335）
李进，高斌， LI Jin.
GAOB
and its
appll 雅
中图分旁
学的店
融标识型
力评价
维号
新方法及应用
[].钻井液与完井液，2017。34（4】：69-74
d method for anti-channeling perfomance evaluation 69-74
能力是有效预防环
推确度有限
装
制数
1001-5620（2017）04-0069-06
ANew Fuzzy Mathematics-based Method for Anti-channeling Performance Evaluation and Its
Application
LI Jin', GAO Bin', GONG Ning', XIE Zhongcheng', CHEN Yi', HAN Yaotu'
(1. State Key Laboratory of Offshore Oil Exploitation, Tianjin Branch of CNOOC, Tianjin 300459;
2. CNOOC Energy Technology & Services Limited Shanghai Branch, Shanghai 200335)
Abstract Gas channeling in annular spaces is a difficult problem seriously harmful to cementing almost all gas wells. Accurate evaluation of cement slurry's anti-channeling performance is one of the key technologies for the prevention of gas channeling in annular spaces. There are several factors which affect gas channeling in annular spaces in a combined way, while the evaluation methods presently in use do not take them all in consideration and have limited accuracy, and hence they cannot give a full view of the problem they asaon ard es eo es n a se eea ps s ea n e
anti-channeling performance of a cement slur Five commonly used evaluation method
"good","medium” correspondit
factor is calculated, and has been proved that this
comprehensive and integrated evaluation
nethodandSPA
cteristics of gas channeling in annular spaces. integrated into an evaluation factor set, Based on the characteristics of each factor, a
, the weighted fuzzy set of each
erall risk of sand production is determined. It inneling in well cementing. It provides a more
ent slurry formulation to prevent pressurized wellhead after well
cementing, thereby to ensure the quality and safety of a cemented well
Key words Well cementing; Gas channeling; Cement slurry, Comprehensive prediction; Analytic hierarchy process; Fuzzy mathematics
基金项目：“十三五”国家重大科技专项“潘海油田高效开发示范工程”（2016ZX05058）第一作者简介：李进，主要从事油气井固井技术及完井射孔、防砂技术研究。
电话（022）66501136；E-mail ：
lijin35@cnooc.com.cn。万方数据