川西须家河组致密储层破裂压力研究
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摘要
川西须家河组气藏储层致密、埋深深、地层压力高及圈闭形成历史复杂、勘探难度高,同时对压裂工艺技术的要求也高。在已有的5口压裂施工井中,3口井施工时未成功,施工时最高井底压力达到128MPa、159.6MPa、135.1MPa。因此,研究区须家河组可能存在“高破裂压力”,开展须家河组致密砂岩储层“高破裂压力”研究成为实现该区储层压裂改造突破的关键因素。
     通过对川西深层须家河组特征的认识,在破裂模拟实验的基础上,系统分析了影响破裂压力的地质、工程因素,取得了如下主要成果:
     (1)岩石力学参数测试情况表明,岩石抗张强度随孔隙度的增加呈指数式下降。通过与侏罗系的对比,深层须家河组的抗张强度一般高于侏罗系一倍以上,从而导致深层须家河组破裂压力高。
     (2)运用美国大型设备—岩石物性参数自动测试系统(MTS系统),在该地区进行了破裂模拟实验。多数岩石经钻井液浸泡后泊松比增大,局部水平应力将会升高,从而使水力压裂时岩石的破裂压力增大。
     (3)采用测井方法、压裂方法,结合差应变测量结果,开展了深层11口井地应力剖面图解释。最小主应力偏高是导致破裂压力高的一个原因。
     (4)首次系统地总结了深层须家河组的破裂压力高的主要地质原因和储层原因。储层的致密程度加大,造成岩石抗张强度比侏罗系高一倍多;埋深增大地应力增加和地层压力增加是影响储层破裂压力升高的主要因素;
     (5)首次系统地总结了深层须家河组的破裂压力高的工程因素。影响程度较大的因素是井眼应力畸变、裂缝的弯曲摩阻。
     (6)在对岩层弯曲派生应力、井眼应力畸变等各种影响因素进行定量分析的基础上,提出了川西地区深层破裂压力评价的公式。
     (7)利用生产压裂资料,对川西须家河组进行了部分单井破裂压力验证和评价,通过初步分析认为是可用的,有待今后实际应用检验。
It have characteristics of tight stratum、deep bury、high pressure、complex trap、difficult exploration in Xujiahe Reservoir of west Sichuan. All of these bring much more requests for fracture technology. Among operating 5 wells, 3 wells fracture operation have failed because of high wells pressure. Their pressure are 128MPa、159.6MPa、135.1MPa. So it is possible that there is a high fracture pressure area in Xujiahe Reservoir. It is the key factor to study of high fracture pressure for fracturing success in the deep Xujiahe Reservoir.
     On the basis of fractured modeling test, it is studied in detail on geology factors and engineering factors by means of knowledge about geology characteristics in Xujiahe Reservoir. It have been get some results here:
     (1)It is affected in the rock mechanics test that rock tensile strength exponential declines with porosity increasing. Rock tensile strength of Xujiahe reserveoir is higher 1 twice than Jurassic reservoir. This will make fracture pressure too high.
     (2)The big fracture modeling test has been done in Xujiahe Reservoir. Horizontal stress will increase after rocks are soaked in mud. This will make fracture pressure too high.
     (3)11 wells stress section have been interpretation by well log method and fracture method with differential stress test. Min horizontal stress is so high to make fracture pressure too high.
     (4)Geology factors and reservoir factors have been studied in detail here. Tight stratum、high pressure、high stress are important factors to increase fracture pressure.
     (5) Engineering factors have been studied in detail here. Stress of well bore distortion、fissure frictional resistance made by bending are the key factors for high fracture pressure.
     (6)The formula of fracture pressure has been brought out here based on rock bending distortion and stress of well bore distortion, etc.
     (7)Well fracture pressure has been demonstrated and evaluated with fracture operating well.
引文
[1] 周文.裂缝性油气储集层评价方法.成都:四川科学技术出版社,1998.
    [2] 李志明,张金珠.地应力与油气勘探开发.北京:石油工业出版社,1997.
    [3] 王鸿勋,张琪等.采油工艺原理.北京:石油工业出版社,1985.
    [4] 周文等.川西坳陷洛带、马井地区蓬莱镇组地层现今地应力场评价.成都理工大学,2000.
    [5] 王鸿勋.水力压裂原理.北京:石油工业出版社,1987.
    [6] 刘应中等.高等流体力学.上海:上海交通大学出版社,2000.
    [7] 刘鹤年.流体力学.北京:中国建筑工业出版社.2001
    [8] 王世泽等.川西坳陷合兴场、新场、丰谷地区须家河组气藏地应力研究.2004
    [9] 埃克诺米德斯,诺尔特(美)著.油藏增产措施(第三版)[M].石油工业出版社.2002
    [10] 王树寅,王秉刚,吴卫,等.利用测井信息评价预测砂岩储层压裂效果[J].地球物理测井.1991,15(3):169-175
    [11] 赵金洲,郭建春.水力压裂效果动态预测[J].石油钻采工艺,1995,17(6):55-61
    [12] 王大力,陈玉英.前馈神经网络用于压裂效果预测[J].石油物探.2000,39(3):121-126
    [13] 黄润秋,张倬元,王士天著.高边坡稳定性的系统工程地质研究,成都:成都科技大学出版社,1991
    [14] 青永固.川西致密碎屑岩气藏水力压裂工艺技术进展[J].天然气工业.2002,21(24):21-24
    [15] 黄辉,谭明文,张绍彬等.川西深层须家河组气藏压裂改造难点和工艺技术对策[J].钻采工艺.2004,27(5):27-30
    [16] Geertsma, J. and Deklerk, F. A Rapid Meathod of Predicting Width and Extent of Hydraulically Induced Fractures[J].JPT(Dec, 1969): 1571-81
    [17] Nolte. K. G. Determination of Fracture Parameters from Fracturing Pressure Decline[J]. Paper SPE8341 Presented at the 1979 SPE Annual Technical Conference and Exhibition, Gas Vegas, Sept, 23-26
    [18] Nolte, K.G. and Smith, M.B. Interpretation of Fracturing Pressures J].JPT (Sept, 1981) 1767-75
    [19] Brown, J.E.,etal. The Technology of Artificial Llift Methods[J], Tulsa, Oklahoma, USA, Penn Well Publishing Co. 1984
    [20] Meng, H.Z.,Proano, E.A.,Buhidma, I.M. and Mach, J.M. Production Systems Analysis of Vertically Fractured Wells[J],paper SPE/DOE 10842, presented at the SPE/DOE Unconventional Gas recovery Symposium, Pittsburgh, Pennsylvania, USA(May 16-18, 1982)
    [21] Hunt, J.L. Production Systems Analysis for Fractured Wells[J],paper SPE15931, presented at SPE Eastern Regional Meeting, Columbus, Ohio, USA(November 12-14,1986)
    [22]Poe, B. D. Jr. , Elbel, J. B. and Wiggins, M. L. Prediction of Future Well Performance, Including Reservoir Depletion Effects[J], paper SPE29465, presented at the SPE operations symposium, Denver, Colorado, USA9April 2-4, 1995)
    [23]Spath, J. B., Ozkan, E. and Raghavan, R. An Efficient Algorithm of Well Responses in Commingled Reservoirs[J], paper SPE21550.SPE Formation Evaluation(June 1994)9, No. 2, 115-121 [24]Aud. W. W., Wright, T. B., Cipolla, C. L, Harkrider, J. D. and Hansen, J. T. The Effect of Viscosity on Near-Wellbore Tortuosity and Premature Screenouts. paper SPE28492, presented at SPE Annual[31]Technical Conference and Exhibition, New Orleans, Louisiana, USA(Sept 25-28,1994) [25]Cleary, M., Johnson, D., Kogsboll, H., Owens, K., Perry, K., dePater, C., Stachel, A., Schmidt, H. andTambini, M.. Field Implementation of Proppant Slugs to Avoid Premature Screen-Out of Hydraulic Fractures with Adequate Proppant Concentration, paper SPE 25892, presented at the SPE Rocky Mountain Regional/Low Permeability Reserviors Symposium, Denver, Colorao, USA(Apr 12-14,1993)
    [26]Romero, J., Mack, M. G. and Elbel, J. L.. Theoretical Model and Numerical Investigation of Near-Wellbore Effects in Hydraulic Fracturing, paper SPE30506, presented at the SPE AnnualTechnical Conference and Exhibition, Dallas, Texas, USA(Oct 22-25,1995) [27]Abass, H., Meadows, D,. Brumley, J. and Venditto, J.. Oriented Perforations-A Rock Mechanics View. paper SPE 28555,presented at the SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, USA(Sept 25-28, 1994)
    [28]Warpinski. N. R. Measurement of Width and Pressure in a Propagating Hydraulic Fracture. SPE,Feb 1985
    [29]Brown SR. A note on the description of surface roughness using fractal dimension. Ge-ophys Res Lett 1987,92:1095-8.
    [30]Fast. R. E. , Murer. A. S, . Timmer. R. S. , Description and Analysis of Cored Hydraulic Fractures-Lost Hills Field, Kern County, California. SPE Production & Facilities, May 1994 [31] Jain. M, Lloyd. D. J. and Macewen. S. R. Hardening Laws, Surface Roughness and Biaxial Tensile Limit Strains of Sheet Aluminium Alloys. Int. J Mech Sci Vol.38 No. 2, pp. 219-232,1996 [32]Van Dam. D. B., De Pater. C. J. and Remco Romijn. Analysis of Hydraulic Fracture Closure in Laboratory Experiments. SPE Production & Facilities, Aug 2000
    [33]Lanaro. F A Random Field Model for Surface roughness and Aperture of Rock Fractures. International Journal of Rock Mechanics & Mining Sciences 37 (2000) 1195-1210 [34]Leung. C. W, Wong. T. T., Probert. S. ZD.. Enhangced Forced-Convection from Ribbed or Machine-Roughened Inner Surfaces within Triangular Ducts. Applied Energy 69(2001)87-99
    [35]Michel A. Verbanck. Assessment of Sediment Behaviour in A Cunette-Shaperd Sewer Section. Wat. Sci. Tech Vol. 33No. 9, pp49-59,1996
    [36] 孙广忠著.岩体结构力学(M).北京:科学出版社,1991
    [37] 蒋廷学,杨艳丽.灰色拓扑预测方法在评价压裂效果中的应用[J].新疆石油地质.2001,22(2):160-162
    [38] P.E. Gretener. Port Pressure: Fundamentals, General Ramification and Implication for Structural Geology.AAPG Department of Education
    [39] 李志明.地应力与油层改造方案[J].石油钻采工艺.1998,20(6):47-52
    [40] 伊向艺,卢渊.石油钻采工程.2006,西南交通大学出版社
    [41] 王平.地质力学方法研究-不同构造力作用下地应力的类型和分布[J].石油学报.1992,13(1):3-11
    [42] 周文.川西坳陷侏罗系气藏地应力与气层压裂改造方案研究[R].成都理工大学.2003
    [43] 陈子光.岩石力学性质与构造应力场[M].北京:地质出版社,1986.
    [44] 曹学军,李晖,郭淑芬.加砂压裂压力分析及应用[J].油气井测试.2001,10(1,2):56-59
    [45] 吴志均,何顺利.新场致密气藏地质特征及合理压裂规模[J].天然气工业.2004,24(9):3-96
    [46] 谭廷栋.从测井信息中提取地层破裂压力.地球物理测井,1992,14(6):373-377
    [47] 王振峰 罗晓容等编.国家高技术研究发展计划成果——莺琼盆地高温高压地层钻井压力预监测技术研究[M].石油工业出版社,2004.03:12-16
    [48] 胡湘炯 高德利等编.油气井工程[M].中国石化出版社,2003.02:106-112
    [49] 史晓飞.地层破裂压力的预测方法探讨[J].电大理工,2006,08(3):16-18
    [50] 黄荣樽 庄锦江.一种新的地层破裂压力预测方法[J].石油钻采工艺,1986(3):1-14
    [51] 程远方 王京印 沈海超 赵益忠.岩屑声波法地层压力监测技术研究与应用[J].中国石油大学学报(自然科学版),2006,10(5):50-52
    [52] 聂采军 赵军 夏宏权 刘之的.地层破裂压力测井预测的统计模式研究[J].天然气地球科学,2004,12(6):633-635
    [53] 李嗣贵 邓金根 蔚宝华 于连俊.高温井地层破裂压力计算技术[J].岩石力学与工程学报,2005,11(24):5669-5673
    [54] 葛洪魁 林英松 马善洲 王爱国 董星亮.修正Holbrook地层破裂压力预测模型[J].石油钻探技术,2001.06(3):20-22
    [55] 郭凯俊 常培锋.浅部地层破裂压力预测研究[J].岩石力学与工程学报,2004.7(14):2484-2487.
    [56] 王亚东.如何用测井声波时差曲线计算地层压力[J].录井工程,2005,12(16):59-62
    [57] 斯仑贝谢公司.李舟波等译.测井解释原理及应用[M].北京:石油工业出版社,1991.
    [58] 葛洪魁,黄荣樽等.理想条件下定向井及水平井地层破裂压力的理论分析[J].石油大学学报,1993,17(2).
    [59] 葛洪魁.钻柱与井壁摩擦造成的扩大斜井眼中的地层破裂压力[J].石油钻探技术,1994,21(3)
    [60] 葛洪魁等.倾斜井眼地层破裂压力的变化规律,石油科技进展[M].东营:石油大学出版社,1995.
    [61] 王鸿勋等编著.水力压裂设计数值计算方法[M].石油工业出版社.1998
    [62] 陈子光.地壳岩石的力学性能—理论基础与实验方法[M].北京:地震出版社,1988.
    [63] 德莱塞阿特拉斯公司.测井与解释技术[M].北京:石油工业出版社,1991.
    [64] 陶振宇,潘别桐著.岩石力学原理与方法[M].北京:中国地质大学出版社,1991.
    [65] 同济大学工程地质与水文地质教研室.构造地质与地质力学[M].北京:中国建筑出版社,1982.
    [66] 孙殿卿,高庆华.地质力学与地壳运动[M].北京:地质出版社,1982.
    [67] 谷德振著.岩体工程地质力学基础[M].北京:科学出版社,1983.
    [68] 万天丰.构造应力场研究的新进展.地学前缘[J],1995,2(1~2).
    [69] 于学馥等.岩石力学新概念及开挖结构优化设计.北京:科学出版社,1995.
    [70] 宋惠珍.地应力场综合研究.北京:石油工业出版社,1990.
    [71] 付永强,李鹭光,何顺利.斜井及水平井在不同构造应力场水力压裂起裂研究.钻采工艺,2007,30(1):27-30.
    [72] 曲占庆,许江华,王岩峰,孙东海.斜井射孔完井地层破裂压力三维有限元分析.石油钻探技术,2007,35(1):13-15.
    [73] 李根生,刘丽,黄中伟,牛继磊.水力射孔对地层破裂压力的影响研究.中国石油大学学报:自然科学版,2006,30(5):42-45.
    [74] 王立军,吕波,吴锋,邵振军.注水井地层破裂压力预测方法及应用.大庆石油学院学报,2006,30(4):16-18,21.
    [75] 金衍,陈勉.T453井三叠系石炭系地层安全钻井液密度窗口的确定.石油钻探技术,2006,34 (3):48-51.
    [76] 黄禹忠.降低压裂井底地层破裂压力的措施.断块油气田,2005,12(1):74-76.
    [77] 王桂华,徐同.井壁稳定地质力学分析.钻采工艺,2005,28(2):27-10.
    [78] 梁何生,闻国峰,王桂华等.孔隙压力变化对地应力的影响研究.石油钻探技术,2004,32(2):18-20.
    [79] 边芳霞,林平,王力.油气井压裂时地层岩石新的破裂压力计算模型的建立.钻采工艺,2004,27(6):19-22.
    [80] 夏宏泉,张元泽,陈平.碳酸盐岩地层破裂压力的测井预测研究.天然气工业,2004,24(8):32-35.
    [81] 刘萍英,郑淑芬,周政英等.测井资料在压裂技术中的应用.测井技术,2004,28(5):468-470.
    [82] 章成广,樊小意,肖柏勋等.用全波资料预测破裂压力的应用研究.国外测井技术,2003,18(6):13-15.
    [83] 刘之的,夏宏泉,陈平.一种估算碳酸盐岩地层自然破裂压力的新方法.国外测井技术,2003,18(6):35-37.
    [84] 刘之的,夏宏泉,汤小燕等.地层破裂压力测井预测的统计模式研究.测井与射孔,2003,6(4):35-38.
    [85] 张广清,陈勉等.射孔对地层破裂压力的影响研究.岩石力学与工程学报,2003,22(1):40-44.
    [86] 徐文梅.利用测井资料预测塔河油田地层破裂压力.石油物探,2003,42(1).
    [87] 邓金根,周建良.渗透性地层井壁坍塌压力和破裂压力的计算模型.岩石力学与工程学报,2002,21(B06):2069-2072.
    [88] 李传亮.射孔完井条件下的岩石破裂压力计算公式.石油钻采工艺,2002,24(2):37-38.
    [89] 张筠,林绍文.利用测井进行地层弹性特征及应力场分析.测井技术,2001,25(6):467-472.
    [90] 田素月,孙灵芬.声波全波列测井在油藏工程中的应用.测井技术,2001,25(5):384-385,388.

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