彭水页岩气水平井中靶技术与应用  

Application of shooting technology of horizontal wells in Pengshui shale gas area

作　　者：谷红陶 袁航[1] 夏海帮[1] 

机构地区：[1]中国石化华东油气分公司非常规资源勘探开发指挥部,山西乡宁042100

出　　处：《油气藏评价与开发》2015年第6期76-80,共5页Petroleum Reservoir Evaluation and Development

摘　　要：通过对彭水地区PYHF-1井地质导向技术的攻关研究与总结,提出了一种"数学逼近算法"。依据地质标志层逐步计算实钻地层倾角进而预测靶点垂深位置的中靶技术,建立了适合彭水区块的页岩气水平井中靶计算的数学模型,给出了数学模型的解析解。并在中靶技术计算过程中,提出了"地层微分化"的概念,提高了靶点垂深计算的准确性。该方法具有直观性、操作简便的优点,并在PY2HF、PY3HF、PY4HF井中靶计算过程中成功应用。Through the total amount of geosteering technology and research in well PYHF- 1 of Pengshui area, a mathematical ap- proximation algorithm is proposed. According to geologic strata, the real drilling stratigraphic dip is calculated step by step and the shooting technology of target vertical depth place is predicted, accordingly, the mathematical model of shooting calculation suited for horizontal wells of Pengshui shale gas is established and its analytical solution is obtained. During the calculation of shooting technology, the stratum differentiation concept is proposed, which improves the accuracy of the target vertical depth calculation. Having the advantages of strong visual impression and simple operation, this method is successfully applied in shooting calculation process of well PY2HF, PY3HF and PY4HF.

关 键 词：页岩气水平井 中靶技术 地质标志层 数学逼近算法 地层微分化 

分 类 号：TE243[石油与天然气工程—油气井工程]