[1]王衛,倪衛寧,王佳琦,等.基于隨鉆方位伽馬和電磁波電阻率的井下可視化地質導向技術[J].測井技術,2019,43(03):235-240.[doi:10.16489/j.issn.1004-1338.2019.03.003]
 WANG Wei,NI Weining,WANG Jiaqi,et al.Downhole Visualized Geosteering Technology Based on Azimuth Gamma and Electromagnetic Wave Resistivity Logging While Drilling[J].WELL LOGGING TECHNOLOGY,2019,43(03):235-240.[doi:10.16489/j.issn.1004-1338.2019.03.003]
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基于隨鉆方位伽馬和電磁波電阻率的井下可視化地質導向技術()
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《測井技術》[ISSN:1004-1338/CN:61-1223/TE]

卷:
第43卷
期數:
2019年03期
頁碼:
235-240
欄目:
方法研究
出版日期:
2019-06-30

文章信息/Info

Title:
Downhole Visualized Geosteering Technology Based on Azimuth Gamma and Electromagnetic Wave Resistivity Logging While Drilling
文章編號:
1004-1338(2019)03-0235-06
作者:
王衛1 倪衛寧1 王佳琦2 劉寶銀3 張中慶3
(1.中國石化石油工程技術研究院, 北京 100101; 2.北京科學儀器裝備協作服務中心, 北京 100035; 3.浙江大學, 浙江 杭州 310012)
Author(s):
WANG Wei1 NI Weining1 WANG Jiaqi2 LIU Baoyin3 ZHANG Zhongqing3
(1. Research Institute of Petroleum Engineering, SINOPEC, Beijing 100101, China; 2. Service Center of Scientific Instruments and Equipment Cooperation, Beijing 100035, China; 3. Zhejiang University, Hangzhou, Zhejiang 310012, China)
關鍵詞:
隨鉆測井 地質導向 地層模型 可視化 鉆遇率
Keywords:
logging while drilling geosteering formation model visualization drill-in rate
分類號:
P631.84
DOI:
10.16489/j.issn.1004-1338.2019.03.003
文獻標志碼:
A
摘要:
水平井鉆井過程中不能直接觀測地層的地質結構,常常造成軌跡調整不及時而脫離鉆井目標。提出一種地層實時可視化井眼軌跡導向技術,提高水平井鉆遇率。借助已鉆井的測井數據和隨鉆實時數據,基于隨鉆方位伽馬和電磁波電阻率測井,整合井周三維建模地層預測、井下導向可視化、隨鉆實時地層走向自動分析及邊界自動預測,實現地層可視化精準預測。地層初始模型采用地震層面約束下的多井井周地層反演技術構建; 地層走向采用近鉆頭伽馬確定; 地層邊界位置利用遠探測電阻率確定。充分發揮各類型儀器探測優勢,綜合多類型測井數據,保證技術目標實現。該技術已進行現場應用,精確預測了地層的地質特征,保證了高時效優質鉆井,為提高優質儲層鉆遇率提供了新的技術手段。
Abstract:
The purpose of drilling a horizontal well is to drill as more reservoirs as possible to increase recovery. In complex strata, it is difficult to adjust the trajectory in time because the geological structure before the bit cann't be seen while drilling. A real-time visualization technique is proposed to guide drilling operation and improve drill-in rate. Based on logging and drilling data of drilled wells, and the real-time LWD data of the well being drilled, i. e. azimuth gamma and electromagnetic wave resistivity, the technique realizes formation visualization and accurate target prediction by building a near-wellbore 3D model, visualized downhole navigation, real-time formation strike analysis and automatic boundary prediction while drilling. The initial formation model is constructed by multi-well formation inversion with seismic constraints, formation strike is determined by near-bit gamma data, and formation boundary is determined by remote detected resistivity. The technology takes full advantages of logging tools and full use of logging data. Field application has proved that it can accurately predict gelogical characteristics and ensure accurate and fast drilling. It provide a new technical means to improve the drill-in rate of good reservoirs.

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備注/Memo

備注/Memo:
基金項目: 國家科技重大專項課題“低滲透儲層高精度隨鉆成像技術研究”(2016ZX05021-002); 中國石化科技部科技攻關項目“近鉆頭三維隨鉆導向解釋技術研究”(P16018) 第一作者: 王衛,男,1965年生,高級工程師,從事測井方法研究及軟件研發工作。E-mail:[email protected]
更新日期/Last Update: 2019-08-30
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