井筒压力波动对气测全烃数据的影响及校正标准实验研究  

Influence of wellbore pressure fluctuation on gas logging total hydrocarbon data and experimental study on calibration standards

作　　者：姜维寨 于伟高 黎红 孙红华 郭素杰 王灿丹婷 JIANG Weizhai;YU Weigao;LI Hong;SUN Honghua;GUO Sujie;WANG Candanting(No.2 Mud Logging Company,BHDC,CNPC,Renqiu,Hebei 062552,China;Exploration Enterprise of PetroChina Huabei Oilfield Company,Renqiu,Hebei 062552,China)

机构地区：[1]中国石油渤海钻探第二录井公司 [2]中国石油华北油田分公司勘探事业部

出　　处：《录井工程》2024年第2期8-14,共7页Mud Logging Engineering

基　　金：中国石油集团渤海钻探工程有限公司重大科技项目“巴彦油田深探井录井关键技术研究”(编号:2022ZD13Y-02)。

摘　　要：为解决井筒压力波动对气测全烃数据检测结果产生的影响,设计了一种模拟井筒压力波动条件下的气测录井模拟实验装置,进行相关影响因素的模拟实验,并根据实验数据建立了全烃检测值校正标准。实验结果表明:全烃检测值随着钻井液密度的增加而降低,随着钻井液粘度的增加先升高、后降低,当钻井液粘度为60 s时检测值最大。全烃校正模型在文安斜坡25口井的老井复查和8口新钻井进行了应用,解释符合率为84.6%,提高了5%,有效解决了气测全烃检测值在井筒压力波动条件下受钻井液性能影响的难题。To solve the influence of wellbore pressure fluctuation on the detection results of total hydrocarbon data of gas logging,a gas logging simulation experiment apparatus was designed under the condition of simulating wellbore pressure fluctuation.Simulation experiments were conducted on relevant influencing factors,and calibration standards for total hydrocarbon detection values were established based on experimental data.The experimental results show that the total hydrocarbon detection values decrease with the increase of drilling fluid densities,and first increase and then decrease with the viscosities of drilling fluid.The detection value reaches the maximum when the viscosity of drilling fluid is 60 s.The total hydrocarbon correction models have been applied to the reevaluation of 25 old wells and 8 newly drilled wells in Wen′an slope,and the interpretation coincidence rate is 84.6%,an increase of 5%,which effectively solve the problem that the total hydrocarbon detection values of gas logging are influenced by drilling fluid properties under the condition of wellbore pressure fluctuation.

关 键 词：气测录井 井筒压力波动 影响因素 气测全烃数据 模拟实验 

分 类 号：TE132.1[石油与天然气工程—油气勘探]