曹妃甸油田井间压力预测及关调制度研究
Study and Application of Inter-Well Pressure Prediction and Shut-down Regulation System in CFD Oilfield
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- 引用格式:
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王昆剑,刘鹏飞,李进,王伟,龚宁.曹妃甸油田井间压力预测及关调制度研究[J].天然气与石油,2020,38(6):52-59.doi:
Wang Kunjian, Liu Pengfei, Li Jin, Wang Wei, Gong Ning.Study and Application of Inter-Well Pressure Prediction and Shut-down Regulation System in CFD Oilfield[J].Natural Gas and Oil,2020,38(6):52-59.doi:
- DOI:
- 作者:
- 王昆剑1,2 刘鹏飞1,2 李进1,2 王伟1,2 龚宁1,2
Wang Kunjian, Liu Pengfei, Li Jin, Wang Wei, Gong Ning
- 作者单位:
- 1. 海洋石油高效开发国家重点实验室,2. 中海石油(中国)有限公司天津分公司
State Key Laboratory of Offshore Oil Exploitation, Tianjin, 300459, China
- 关键词:
- 井间压力;关调制度;压力预测;注采关系;曹妃甸油田
Inter-well pressure; Shut-down regulation; Pressure prediction; Injection-production relationship; CFD oilfield
- 摘要:
为保障曹妃甸油田加密调整井钻完井作业安全,减少溢流、漏失等钻井复杂情况和事故发生,根据曹妃甸油田地质和开发特点,通过室内实验和数模相结合的方法,研究分析了不同关调制度下的井间压力变化规律。基于调整井间压力变化规律及预测模型,建立了基于卡尔曼滤波算法的注采关系确定新方法,形成了强边底水油藏和弱边底水油藏调整井周边注采井关调制度确立方法。经2口井现场应用表明，在确保加密调整井钻完井作业安全的前提下,新建立的周边注采井关调制度较传统关调方式分别降低关调量62%和54.5%,应用效果良好。研究结果可有效预测加密调整井井间压力,合理关调周边注采井,对保障调整井施工安全具有重要意义。
In order to ensure the safety of drilling and completion operation of infill adjustment wells in CFD oilfield, and reduce the drilling complications and accidents such as overflow and leakage, according to the geological and development characteristics of CFD oilfield, the variation law of inter well pressure under different shut-down regulation systems is studied and analyzed by means of laboratory experiment and numerical simulation. Based on the variation law and prediction model of pressure between adjustment wells, a new method for determining injection -production relationship based on Kalman filter algorithm is established, and a method for determining the shut-down regulation system of injection production wells around the adjustment wells in reservoirs with strong edge and bottom water and reservoirs with weak edge and bottom water is established. On-site application of the two wells show that on the premise of ensuring the safety of drilling and completion operation of infill adjustment wells, the new shut-down adjustment system for peripheral injection production wells reduces the shut-down amount by 62% and 54.5% respectively compared with the traditional general shut-down method, and the application effect is good. This study can effectively predict the inter-well pressure of infill adjustment wells, which is of great significance to avoid drilling overflow and leakage of adjustment wells and ensure the safety of drilling and completion of adjustment wells.
