本文關(guān)鍵詞：利用PNST測井資料評價示蹤陶粒壓裂裂縫Ⅰ:能譜　出處：《測井技術(shù)》2016年06期 　論文類型：期刊論文

  更多相關(guān)文章： 脈沖中子測井 水力壓裂 裂縫高度 示蹤陶粒 俘獲能譜 地層元素 資料解釋

【摘要】：為滿足水力壓裂支撐縫高度評價需要,針對含高熱中子俘獲截面材料氧化釓的非放射性示蹤陶粒的辨識問題,研究了PNST俘獲伽馬能譜測井資料處理與解釋方法。經(jīng)預(yù)處理實測俘獲能譜和元素標準譜、解譜確定元素產(chǎn)額、校正井眼元素產(chǎn)額、運用相對靈敏度因子和氧化物閉合模型等數(shù)據(jù)處理與解釋步驟,獲得了地層元素干重與礦物組分。為反映地層的可壓裂性,進一步計算了巖石脆性指數(shù)。測井實例表明,通過比較壓裂前后地層釓元素干重的差異,能辨識示蹤陶粒鋪置位置。該方法的解釋結(jié)論與測量熱中子俘獲截面的解釋結(jié)論相符,且該方法具有特異性和更高的靈敏度。
[Abstract]:In order to meet the need of evaluating the height of hydraulic fracturing support fracture, the identification of non-radioactive tracer ceramsite containing gadolinium oxide with high thermal neutron capture cross section was studied. The processing and interpretation method of PNST capture gamma-ray spectroscopy logging data are studied. The elemental yield is determined and the borehole element yield is corrected by pre-processing measurement of capture spectrum and elemental standard spectrum. By using the relative sensitivity factor and the oxide closure model, the dry weight and mineral components of the formation elements are obtained, which reflect the fracturing ability of the formation. The rock brittleness index is further calculated. The logging example shows that the difference of formation gadolinium dry weight before and after fracturing is compared. The method can identify the location of tracer ceramsite. The result of this method is consistent with that of the measurement of thermal neutron capture cross section, and the method has higher sensitivity and specificity.
【作者單位】： 大慶油田有限責(zé)任公司測試技術(shù)服務(wù)分公司;
【基金】：國家科技重大專項大型油氣田及煤層氣開發(fā)(2011ZX05014)
【分類號】：TE311;P631.81
【正文快照】： 0引言評價水力壓裂人工裂縫位置與寬度有助于制定開發(fā)井未來措施方案,也有助于調(diào)整同一區(qū)塊其他井壓裂方案。非放射性示蹤陶粒壓裂裂縫評價技術(shù)由放射性示蹤壓裂評價技術(shù)演變而來,主要用于探測垂向裂縫高度(支撐劑鋪置高度)和定性指示縫寬。非放射性示蹤陶粒支撐劑中含少量的，

本文編號：1393070