水平井参与下的油藏隔夹层描述技术及应用

doi:10.11743/ogg20180618

摘要/Abstract

摘要： 油田开发中后期井间隔夹层分布预测成为油藏精细描述中不可或缺的研究内容，由于隔夹层导致的渗透差异成为影响剩余油分布的重要因素。针对复杂的、非均质性很强的油藏类型，仅依靠露头地质资料、有限的直井信息、地质经验难以精准、合理地表征复杂油藏中的薄隔夹层。本文充分利用水平井开发区丰富的水平井信息，提出一种新的直井与水平井联合的隔夹层描述新思路与新流程，引入了隔夹层敏感测井曲线的变化幅度参数值交会分析新技术，利用直井（段）的隔夹层识别、划分标准和地震构造面约束下的地层产状水平井曲线预测技术，构建出直井（段）与水平井的隔夹层等时对比格架、直井与水平井隔夹层测井响应关系，确定了水平井单井隔夹层类型和定量解释标准；探讨了水平井沿轨迹方向的隔夹层分布；综合多种信息和地质模型指导完成了水平井参与下的油藏隔夹层剖面对比分析、隔夹层平面展布规律的研究，验证和修正了前人基于直井（段）隔夹层解释结果、明显地提高了隔夹层预测精度，最后结合动态开发资料综合分析了在隔夹层控制下的油水运动过程以及剩余油分布富集特征，为后续油田开发方案的调整以及新井部署提供了有力的依据。

关键词: 直井, 水平井, 隔夹层描述, 油水分布, 剩余油气, 油藏开发

Abstract: The prediction for the distribution of baffles and barriers is an indispensable part for the fine description of oil reservoirs in the middle-late stages of oilfield development,because the differential permeability caused by these layers has become an important factor affecting the distribution of remaining oil.As for complex and highly heterogeneous reservoirs,it is difficult to accurately and reasonably characterize their thin baffles and barriers simply by using the geological data of outcrop, limited vertical well data and geological experiences.As there are abundant horizontal well data available,we proposed a new idea and technical process to describe baffles and barriers by the combination of vertical and horizontal well data.The cross-plotting analysis technique of change amplitude parameter values of logging curves being sensitive to baffles and barriers was introduced into the technical process.The identification criteria of baffles and barriers and the method of predicting their occurrences with horizontal well logs under the constraint of seismic structural surfaces were used to establish the isochronous correlation framework and the relationship of logging responses of baffles and barriers between vertical wells(segments)and laterals,and to determine the types and quantitative interpretation standards of baffles and barriers in single laterals.Then the distribution of baffles and barriers along the trajectory of horizontal wells was discussed, and multiple data and geologic models were integrated to guide the correlation of baffles and barriers on profiles and the study of their planar distribution,and to verify and correct the previous interpretation results obtained based solely on vertical well data.Finally,the oil-water movement process and residual oil distribution and enrichment characteristics under the control of the baffles and barriers were comprehensively analyzed in combination with the dynamic development data.This study provides a powerful basis for the adjustment of subsequent oilfield development plans and the emplacement of new wells.

Key words: vertical well, horizontal well, description of baffle and barrier, oil-water distribution, remaining oil and gas, oilfield development

中图分类号:

TE1321

夏竹,张婷婷,张胜,等. 水平井参与下的油藏隔夹层描述技术及应用[J]. 石油与天然气地质, 2018, 39(6): 1293-1304. doi: 10.11743/ogg20180618 Xia Zhu,Zhang Tingting,Zhang Sheng,et al. Technique for describing baffles and barriers in oil reservoir with horizontal well data integrated and its application[J]. Oil & Gas Geology, 2018, 39(6): 1293-1304. doi: 10.11743/ogg20180618

参考文献

[1] 吴胜和,蔡正旗,施尚明等.油矿地质学[M].北京:石油工业出版社,2011:161-180. Wu Shenghe,Cai Zhengqi,Shi Shangming,et al.Oil deposit geology[M].Petroleum Industry Press,2011,161-180.
[2] Geehan G W.Geologic prediction of shale continuity prudhoe bay field:reservoir characterization[J].Academic Press Inc,1986,19(9):162-168.
[3] 吕晓光,马福士,田东辉.隔层岩性、物性及分布特征研究[J].石油勘探与开发,1994,21(5):80-87. Lv Xiaoguang,Ma Fushi,Tian Donghui.A study of lithology,petrophysical of barriers and their distribution properties[J].Petroleum Exploration and Development,1994,21(5):80-87.
[4] 张吉,张烈辉,胡书勇等.陆相碎屑岩储层隔夹层成因、特征及其识别[J].测井技术,2003,27(3):221-224. Zhang Ji,Zhang Liehui,Hu Shuyong,et al.The genesis and characteristics and identification of intercalations in non-marine reservoir with clastic rock[J].Well Logging Technology,2003,27(3):221-224.
[5] 朱东亚,胡文瑄,曹学伟等.临南油田隔层类型划分及其分布规律研究[J].地球科学,2004,29(2):211-218. Zhu Dongya,Hu Wenxuan,Cao Xuewei,et al.Classification and distribution of insulating layers in Linnan Oilfield[J].Earth Science,2004,29(2):211-218.
[6] 顾家裕,张兴阳,郭彬程等.塔里木盆地东河砂岩沉积和储层特征及综合分析[J].古地理学报,2006,8(3):285-294. Gu Jiayu,Zhang Xingyang,Guo Bincheng,et al.Characteristics of sedimentation and reservoir of the Donghe Sandstone in Tarim Basin and their synthetic analysis[J].Journal of Palaeogeography,2006,8(3):285-294.
[7] 周灿灿,王昌学.水平井测井解释技术综述[J].地球物理学进展,2006,21(1):152-160. Zhou Cancan,Wang Changxue.Technology review on the log interpretation of horizontal well[J].Progress in Geophysics,2006,21(1):152-160.
[8] 李鹏翔.水平井测井解释研究的发展[J].江汉石油学院学报,1999,21(2):23-26. Li Pengxiang.Development of the log interpretation of horizontal well[J].Journal of Jianghan Petroleum Institute,1999,21(2):23-26.
[9] 汪中浩,易觉非,赵乾富等.水平井测井资料地质解释应用[J].江汉石油学院学报,2004,26(3):70-72. Wang Zhonghao,Yi Juefei,Zhao Qianfu,et al.Application of geologic interpretation of horizontal well logging data[J].Journal of Jianghan Petroleum Institute,2004,26(3):70-72.
[10] 申银民,贾进华,齐英敏等.塔里木盆地上泥盆统-下石炭统东河砂岩沉积相与哈得逊油田的发现[J].古地理学报,2011,13(3):279-286. Shen Yinmin,Jia Jinhua,Qi Yingmin,et al.Sedimentary facies of donghe sandstone in the upper devonian-lower carboniferous and discovery of hadexun oilfield in Tarim basin[J].Journal of Palaeogeography,2011,13(3):279-286.
[11] 朱筱敏,赵澄林,钟大康.塔里木盆地东河砂岩沉积储层特征[M].北京:石油工业出版社,2006:93-108. Zhu Xiaomin,Zhao Chenglin,Zhong Dakang.Characteristics of sedimentation and reservoir of the donghe sandstone in Tarim basin[M].Beijing:Petroleum Industry Press,2006:93-108.
[12] 焦翠华,王海更,牛玉杰等.塔里木盆地哈得4油田东河砂岩层序地层界面类型及测井识别方法[J].石油与天然气地质,2007,28(1):69-76. Jiao Cuihua,Wang Haigeng,Niu Yujie,et al.Sequence boundary types and logging identification of donghe sandstone in HD4 oilfield,Tarim basin[J].Oil & Gas Geology,2007,28(1):69-76.
[13] 李国永,徐怀民,牛玉杰.哈得逊地区东河砂岩沉积微相特征及其对流动单元的控制作用[J].油气地质与采收率,2008,15(5):35-37. Li Guoyong,Xu Huaimin,Niu Yujie.Microfacies characteristic of donghe sandstone and their control on flow units in Hudson area[J].Petroleum Geology and Recovery Efficiency,2008,15(5):35-37.
[14] 何香香.哈得逊地区东河砂岩测井资料隔夹层识别[J].海洋石油,2012,32(4):70-74. He Xiangxiang.Identification on interbedded layers among donghe sandstones in Hadexun district with well logging data[J].Offshore Oil,2012,32(4):70-74.
[15] 王洋,刘婧,汪建国等.塔里木盆地东河1油藏东河砂岩隔夹层形成的主控因素及流体来源[J].石油学报,2015,36(2):74-181. Wang Yang,Liu Jing,Wang Jianguo,et al.Major controlling factors for the formation of inter-layer of donghe sandstone of Donghe1 reservoir in Tarim basin and its fluid source[J].Acta Petrolei Sinica,2015,36(2):174-181.