Calculation Method of the Productivity of Partially Perforated Vertical Well
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摘要: 为了准确计算部分射开直井的产能，并为射孔方案优化提供理论依据，将McLeod射孔几何模型改进为双径向流模型，应用渗流力学原理和等值渗流阻力法，分射穿污染带与未射穿污染带2种情况，得到各向同性油藏部分射开直井的产能计算方法。在此基础上，根据各向异性油藏渗流理论，将各向异性油藏变换为等价的各向同性油藏，得到各向异性油藏部分射开直井的产能计算方法。分析参数敏感性得出，当射开程度小于70%、射孔深度小于80 cm、射孔密度小于20孔/m、压实程度大于75%时，这4个参数对产能的影响很大；相位角、孔径、压实带厚度对产能的影响很小；未射穿污染带时的产能对各参数的敏感性比射穿污染带时高。实例计算表明，该方法的计算结果与表皮系数法相差约5%。研究结果表明，产能与射孔深度、射孔密度、孔径、相位角、压实带厚度、压实程度和射开程度之间均为非线性关系。Abstract: To accurately calculate the productivity of partially perforated well and provide theoretical foundation for optimization of perforation scheme,McLeod’s perforation geometric model is modified to dual radial flow model.Then,by considering penetrated and unpenetrated damaged zone,productivity calculation methods of partially perforated vertical well in isotropic reservoir was established based on the principle of fluid mechanics in porous medium and equivalent flowing resistance method.On the basis of this work,the productivity calculation methods of partially perforated vertical well in anisotropic reservoir was established by transforming anisotropic reservoir into isotropic reservoir based on the principle of fluid mechanics in anisotropic reservoir.Sensitivity analysis of the perforation parameter of partially perforated vertical well shows that perforated degree,perforation length,shot density and compaction degree have great effect on the productivity when the perforation has a perforated degree less than 70 percent,perforation length less than 80 cm,shot density less than 20 shots per meter and a compaction degree more than 75 percent.But perforation phasing,perforation diameter and crushed zone thickness have little effect on the productivity.The productivity of a reservoir with penetrated damaged zone is less sensitive to reservoirs with partially penetrated damaged zone.An example is provided and the difference between corresponding results of new method and skin method is about 5 percent.Results show that perforation length,shot density,perforation diameter,phasing,crushed zone thickness,compaction degree and perforated degree have a nonlinear relationship with productivity.
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[1] 王海东, 孙新波.国内外射孔技术发展综述[J].爆破器材, 2006, 35(3):33-36. Wang Haidong, Sun Xinbo.Perforating technology development inside and outside of china[J].Explosive Materials, 2006, 35(3):33-36. [2] 姚约东, 刘艳华.打开不完善井的合理产能评价[J].石油钻探技术, 2010, 38(2):14-18. Yao Yuedong, Liu Yanhua.Productivity evaluations of partial penetrating wells[J].Petroleum Drilling Techniques, 2010, 38(2):14-18. [3] 张丽华.射孔参数对油井产能影响的分析[J].石油大学学报:自然科学版, 1993, 17(2):33-38. Zhang Lihua.Effect of perforation parameters on oil well productivity[J].Journal of the University of Petroleum, China:Edition of Natural Science, 1993, 17(2):33-38. [4] 牛超群, 张玉金.油气井完井射孔技术[M].北京:石油工业出版社, 1994:61-67. Niu Chaoqun, Zhang Yujin.Perforating technology of oil and gas well completion[M].Beijing:Petroleum Industy Press, 1994:61-67. [5] Asadi M, Preston F W.Characterization of the crushed zone formed during jet perforation by qualitative scanning electron microscopy and quantitative image analysis[R].SPE 22812, 1991.
[6] Pucknell J K, Berhmann L A.An investigation of the damaged zone created by perforating[R].SPE 22811, 1991.
[7] 牛华.试论射孔与油气井产能的关系[J].大庆石油学院学报, 1995, 19(2):32-34. Niu Hua.Discussion on the relationship of perforation and oil-gas well production[J].Journal of Daqing Petroleum Insititute, 1995, 19(2):32-34. [8] 李东传, 唐国海, 孙新波, 等.射孔压实带研究[J].石油勘探与开发, 2000, 27(5):112-114. Li Dongchuan, Tang Guohai, Sun Xinbo, et al.A study on perforation crushed-zone[J].Petroleum Exploration and Development, 2000, 27(5):112-114. [9] Harris M H.The effect of perforating oil well productivity[J].Journal of Petroleum Technology, 1966, 18(4):518-528.
[10] Klotz J A, Krueger R F, Pye D S.Effect of perforation damage on well productivity[R].SPE 4654, 1974.
[11] McLeod H O, Jr.The effect of perforating conditions on well performance[R].SPE 10649, 1983.
[12] Karakas Metin, Tariq S M.Semianalytical productivity models for perforated completions[R].SPE 21477, 1990.
[13] 唐愉拉, 潘迎德.有限元方法在射孔完井中的应用[J].石油学报, 1989, 10(3):48-58. Tang Yula, Pan Yingde.Evaluation of perforating completion by finite element method[J].Acta Petrolei Sinica, 1989, 10(3):48-58. [14] 唐愉拉, 潘迎德, 冯跃平.油、气井射孔完井产能预测和优化射孔设计[J].油气井测试, 1991(2):102-125, 101. Tang Yula, Pan Yingde, Feng Yueping.Productivity forecast and optimal design of the perforated oil and gas well[J].Well Testing, 1991(2):102-125, 101. [15] 郎兆新, 张丽华, 朱九成, 等.射孔工程应用软件WPSYS-A的开发[J].石油大学学报:自然科学版, 1992, 16(6):42-48. Lang Zhaoxin, Zhang Lihua, Zhu Jiucheng, et al.Development of well perforation engineering software WPSYS-A[J].Journal of the University of Petroleum, China:Edition of Natural Science, 1992, 16(6):42-48. [16] 李祥贵, 王清河, 李元.射孔完井模型的数值模拟[J].石油大学学报:自然科学版, 1996, 20(2):48-53. Li Xianggui, Wang Qinghe, Li Yuan.Numerical simulation model of perforated well completions[J].Journal of the University of Petroleum, China:Edition of Natural Science, 1996, 20(2):48-53. [17] 成绥民, 王天顺.表皮系数系统分解方法[J].油气井测试, 1992(1):35-40. Cheng Suimin, Wang Tianshun.The system decomposition method of the skin factor[J].Well Testing, 1992(1):35-40. [18] 张红霞.表皮系数系统分解研究与应用[D].青岛:中国石油大学(华东)石油工程学院, 2006:8-12. Zhang Hongxia.The system decomposition research and application of the skin factor[D].Qingdao: China University of Petroleum(Huadong), School of Petroleum Engineering, 2006:8-12. [19] 张建国, 杜殿发, 侯健, 等.油气层渗流力学[M].2版.东营:中国石油大学出版社, 2009:126-133. Zhang Jianguo, Du Dianfa, Hou Jian, et al.Seepage mechanics of reservoir[M].2nd ed.Dongying:China University of Petroleum Press, 2009:126-133. [20] Joshi S D.A review of horizontal well anddrainhole technology[R].SPE 16868, 1987.
[21] 陈元千, 邹存友.考虑各向异性和偏心距影响的水平井产量公式推导、对比与应用[J].新疆石油地质, 2009, 30(4):486-489. Chen Yuanqian, Zou Cunyou.Derivation, comparison and application of horizontal well production formula considering anisotropy and eccentricity effects[J].Xinjiang Petroleum Geology, 2009, 30(4):486-489. [22] 葛家理, 刘月田, 姚约东.现代油藏渗流力学原理:下[M].北京:石油工业出版社, 2003:29-51. Ge Jiali, Liu Yuetian, Yao Yuedong.Seepage mechanics principle of reservoir in modern:part Ⅱ[M].Beijing:Petroleum Industy Press, 2003:29-51. [23] Besson J.Performance of slanted and horizontal wells on an anisotropic medium[R].SPE 20965, 1990.
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