Analytical Algorithm for Normal-Plane Scanning of Interwell Distance
-
摘要: 法面扫描是分析实钻轨迹偏离程度、邻井防碰、定向井中靶等井间关系的重要方法.然而,传统方法存在2个主要缺陷:一是采用比较井段两端点是否位于法面异侧来判别法面与比较井是否存在交点的方法不具有普遍适用性,可能会遗漏掉邻井防碰的危险点;二是用迭代法来求解法面与比较井的交点,需要进行大量的轨迹插值与比较等方面的计算,计算量大、收敛性差.为此,基于井眼轨迹的空间圆弧模型,发展完善了法面与比较井是否相交的判别方法,并研究提出了求解其交点的解析法.这些方法不需要对比较井进行插值计算,仅需要比较井的设计轨道节点或实钻轨迹测点数据就能得到准确的计算结果,大大减小了计算量.应用实例验证了研究结果的科学性和适用性.Abstract: Normal plane scanning is an important method in interwell relationship analyses such as drilling trajectory deviation, adjacent well anti-collision and directional well targeting. However, the conventional method has two major defects:(1) it can determine whether normal plane has an intersection with comparison well by identifying whether both ends of comparison well section are on the different sides of the normal plane, which may omit danger points of adjacent well anti-collisions;(2) the iteration method can be used for solving the intersection between normal plane and comparison well but needs complicated calculations in the track interpolation, resulting that the convergence is usually poor. Therefore, a method is developed based on the spatial arc model of well tracking to determine whether the normal plane is intersected with the comparison. An analytical method is proposed to solve the intersection. It does not need interpolation for the comparison well but can obtain accurate calculation results by using a design track node or drilling track measuring point data of the comparison well, thus greatly reducing calculations. Its applicabilities have been verified by application examples.
-
-
[1] Thorogood J L,Sawaryn S J.The traveling-cylinder diagram:a practical tool for collision avoidance[J].SPE Drilling Engineering,1991,6(1):31-36.
[2] 韩志勇,宁秀旭.一种新的定向钻井绘图:法面扫描图[J].石油大学学报:自然科学版,1990,14(3):24-30. Han Zhiyong,Ning Xiuxu.A new plotting for directional drilling:normal-plane-sanning chart[J].Journal of the University of Petroleum,China:Natural Science Edition,1990,14(3):24-30. [3] 高德利,韩志东.邻井距离扫描计算与绘图原理[J].石油钻采工艺,1993,15(5):21-29. Gao Deli,Han Zhidong.Calculation and drawing principle for adjacent well distance scanning[J].Oil Drilling Production Technology,1993,15(5):21-29. [4] 刘修善,岑章志.井眼轨迹间相互关系的描述与计算[J].钻采工艺,1999,22(3):7-12. Liu Xiushan,Cen Zhangzhi.Description and calculation of relative positions of wellbore trajectories[J].Drilling Production Technology,1999,22(3):7-12. [5] 夏泊洢.邻井法面距离计算方法的改进[J].石油地质与工程,2012,26(5):113-116. Xia Boyi.Perfection of calculating normal plane distance between wells[J].Petroleum Geology and Engineering,2012,26(5):113-116. [6] 唐雪平.一种精确的井距计算方法[J].数学的实践与认识,2012,42(17):69-78. Tang Xueping.An exact well distance calculation method[J].Mathematics in Practice and Theory,2012,42(17):69-78. [7] 刘修善.一种井间相对位置关系的法面扫描解析方法:中国,201410199045.6[P].2014-05-12. Liu Xiushan.Analytical method for normal plane scanning of relative position between wells:CN,201410199045.6[P].2014-05-12. [8] 刘修善,王超.空间圆弧轨迹的解析描述技术[J].石油学报,2014,35(1):134-140. Liu Xiushan,Wang Chao.Analytic description of spatial-arc wellbore trajectory[J].Acta Petrolei Sinica,2014,35(1):134-140. -
期刊类型引用(4)
1. 张东清，万云强，张文平，代永波，张金成，许明标. 涪陵页岩气田立体开发优快钻井技术. 石油钻探技术. 2023(02): 16-21 . 
本站查看
2. 刘慧，丁心鲁，张士杰，方云贵，郝晓波，郑玮鸽. 地下储气库注气过程一体化压力及地层参数计算方法. 石油钻探技术. 2022(06): 64-71 . 本站查看
3. 周志敏，杨刚，崔建航. 顺北1区SHB5-12井周断溶体储层压裂参数设计研究. 水利与建筑工程学报. 2022(05): 109-116+130 . 百度学术
4. 张红杰，刘欣佳，张潇，张遂安，邵冰冰. 煤系储层综合开发中的压裂射孔方案优化研究. 特种油气藏. 2021(01): 154-160 . 百度学术
其他类型引用(2)
计量
- 文章访问数: 3589
- HTML全文浏览量: 137
- PDF下载量: 4546
- 被引次数: 6
下载:
