Application of wavelet transform to improving the vertical resolution of logging while drilling wave propagation resistivity 应用小波分析改善随钻电阻率测量的纵向分辨率
With the development of worldwide petroleum industry , deviated holes , branch holes and horizontal wells are used to exploit oil reservoir which is smaller , thinner and worse . logging while drilling ( lwd ) is used to evaluate and geosteering drill in this kind of reservoir because of its characters 随着世界石油工业的不断发展,大斜度井、分支井和水平井等钻井技术越来越多地被用来开发规模更小、油层更薄、物性更差、非均质性强的油藏。
Parameters can be interpreted through the method used in straight wells . after logging curves in horizontal wells are revised to true vertical depth , oil - bearing formation is evaluated through the comparison of wells combined with geological information . logging while drilling have great difference with ordinary cable logging especially in deviated holes and horizontal wells . comparison of cable logging and lwd carried out in different time indicates characters of mud invasion 实际解释lwd资料时首先需对随钻测井资料进行预处理和标准化,然后从随钻测井、录井资料中提取与岩性密切相关的参数,建立测井相-岩相统计模式,并采用灰色关联识别方法实时判别地层岩性;采用直井的参数解释方法进行随钻地层参数解释;将水平井的随钻测井曲线从实际井深校正到垂直井深上,通过随钻测井资料与邻井测井资料的对比解释,并结合地质、录井资料进行随钻地层含油气性评价。
logging: n. 1.伐木事业;伐木量。 2.载入值班簿[航行日志] ...while: n. 一段时间;一会儿;(所需、所费的)功夫。 Rest ...drilling: adj. 尖锐的,辛辣的。 drilling eyes ...logging while drilling apparatus: 随钻测井仪logging-while-drilling tool: 随钻测井仪well logging while drilling: 随钻测井logging-while-drlling: 随钻测井maximum torque while drilling: 钻进最大扭矩measurement while drilling: 随钻测量plugging while drilling: 随钻堵漏seismic while drilling: 以井底钻头声能为震源的地震方法torque while drilling: 钻进扭矩(瞬时)well logging during drilling: 随钻测井drilling engineering data logging unit: 钻井工程录井仪; 钻井工程数据记录仪for ,while: 等条件句中for a while: 过会…; 一阵子; 暂时,一时; 暂时;一会儿;一段时间; 只是一会the while: 其时, 当时while: n. 一段时间;一会儿;(所需、所费的)功夫。 Rest a while 休息一会儿。 A long [good] while 长久。 After a while 过了一会儿。 All the while 始终,一直。 At whiles 有时,时常。 Between whiles 时常,不时地。 Every little while = at whiles. For a [one] while 暂时,一时。 In a little while 不久,没一会儿,立刻。 Make it worth sb.'s while 酬劳;行贿。 Once in a while 时常,有时。 The while [whilst] 1. 当时;其间,在那中间;同时。 2. 〔诗〕…当中〔此义常用 whilst〕。 Worth (sb.'s) while 有…的价值,值得;有利益的 (It is worth while to see the museum. 参观博物馆是有益的)。 1.当…的时候;和…同时。 2.而,但是,可是,倒,却,但另一方面,反过来;虽则。 He was drowned while swimming. 他游泳时淹死了。 W- I like the colour of the hat, I do not like its shape. 我倒喜欢这顶帽子的颜色,但不喜欢那个式样。 One lost a leg, another an arm, while a third was killed outright. 一个人折了一只腿,一个人丢了一只胳膊,另一个人呢,当场死了。 At a time when … while … 一面…一面又…。 vt. 消磨,闲混(时间) (away)。 〔古语〕直至(某时)。 W- then, God be with you. 直至彼时,上天将保佑汝。 logging: n. 1.伐木事业;伐木量。 2.载入值班簿[航行日志];记录;存入。 3.记下调谐位置。 4.【地质学;地理学】录井,测井。 logging clearing 集材。 a logging railway 森林(运送木材)铁路。 logging in: 登录logging on: 登录no logging: 无记录drilling: n. 1.钻孔;【矿物】钻井;〔pl.〕钻屑,钻粉。 2.操练,训练。 drilling machine 钻床。 drilling fluid [mud] 钻探泥浆。 n. 【农业】条播。 ridge [furrow] drilling 垄[沟]播。 n. 【纺织;印染】斜纹布,卡其。 adj. 尖锐的,辛辣的。 drilling eyes 敏锐的目光。 drilling taunt about politics 辛辣的政治抨击。 drilling in: 钻入of drilling: 混合钻进方法