深层致密储层大斜度井压裂裂缝扩展机制研究

doi:10.13722/j.cnki.jrme.2022.0548

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (3710 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要冀东摊海复杂断块油藏致密砂岩储层高效的开采方式为大斜度丛式井体积压裂。斜井射孔水力裂缝起裂后沿水平最大主应力方向和垂向双向扭曲导致裂缝形态复杂，扭曲交界面最易形成砂堵点，因此明确斜井裂缝扩展规律对解决砂堵难题具有重要意义。基于室内真三轴水力压裂物理模拟试验(300 mm3)，探究水平应力差、井斜角、方位角和射孔相位角对斜井压裂裂缝起裂特征和扩展规律的影响。试验结果表明：(1) 斜井压裂后裂缝面形态分为单一裂缝面、双翼平行裂缝面、多次级缝裂缝面和复杂裂缝面。(2) 低水平应力差异系数下，孔眼起裂数量多；高水平应力差异系数下，与水平最大主应力方向夹角较小的孔眼起裂。(3) 20°或者80°井斜角下射孔孔眼起裂点少，40°或者60°井斜角下射孔孔眼起裂点多；裂缝扭曲程度随井斜角增大呈先增后减趋势。(4) 方位角大于80°时，裂缝起裂压力增大，裂缝形态以多次级缝裂缝面和复杂裂缝面为主。(5) 射孔相位角增大，起裂难度增加，孔眼间距增加导致连通作用变弱，易产生次级扩展缝。建议水平应力差大的地层井眼轨迹设计时应该采用大井斜角、小相位角和小方位角施工，可以有效降低裂缝起裂压力和扭曲程度，解决现场施工砂堵难题。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	侯冰1
	2
	崔壮1
	2
	曾悦1
	2

关键词 ：岩石力学, 大斜度井, 井眼轨迹参数, 水力压裂, 裂缝形态, 致密储层

Abstract：The efficient production method of tight sandstone reservoir in Tanhai block of Jidong oilfield is volume fracturing of deviated wells. The bidirectional deformation along the horizontal maximum principal stress direction and the vertical stress direction leads to the complex fracture morphology. The distortion interface is easy to form sand blocking phenomenon. Therefore，it is of great significance to clarify the law of fracture propagation in deviated wells. Based on the large-scale true triaxial hydraulic fracturing physical simulation experiment，this paper studies the influence law of horizontal stress difference，well inclination angle，azimuth angle and phase angle on the fracture initiation characteristics and propagation morphology of deviated well. The results showed that：(1) the fracture morphology of deviated well after fracturing can be divided into single fracture surface，double wing parallel fracture surface，multiple fracture surface and complex fracture surface. (2) Under the low horizontal stress difference coefficient，the number of perforation hole initiation is more. On the contrary，only the perforation hole with a small angle to the direction of the horizontal maximum principal stress starts to crack. (3) There are fewer fracture initiation points in 20° or 80° wells，while there are more fracture initiation points in 40° or 60° wells. The degree of fracture distortion increases first and then decreases with the increase of inclination angle. (4) When the azimuth angle is greater than 80°，the fracture initiation pressure increases，and the fracture morphology is mainly multiple fracture surface and complex fracture surface. (5) The increase of perforation phase angle leads to the increase of fracture initiation pressure. With the increase of hole spacing，the communication between holes becomes weaker，leading to the generation of secondary spreading fractures. It is suggested that the well trajectory design of formation with large horizontal stress difference should adopt large well inclination angle，small phase angle and small azimuth angle. It can effectively reduce the fracture initiation pressure and distortion degree，so as to solve the problem of sand blocking in site construction.

Key words： rock mechanics deviated well borehole trajectory parameters hydraulic fracturing fracture morphology tight reservoirs

引用本文:

侯冰1，2，崔壮1，2，曾悦1，2. 深层致密储层大斜度井压裂裂缝扩展机制研究[J]. 岩石力学与工程学报, 2023, 42(S2): 4054-4063.
HOU Bing1，2，CUI Zhuang1，2，ZENG Yue1，2. Experimental study on fracture propagation morphology of deviated well in tight reservoir. , 2023, 42(S2): 4054-4063.

链接本文:

http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2022.0548 或 http://rockmech.whrsm.ac.cn/CN/Y2023/V42/IS2/4054

[9]	DANESHY A A. Experimental investigation of hydraulic fracturing through perforations[J]. Journal of Petroleum Technology，1973，25：1 201-1 206.
[7]	YEW C H，LI Y. Fracturing of a deviated well[J]. SPE Production Enginerring，1998，3(4)：429-437.
[12]	ABASS H H，HEDAYATI S，MEADOWS D L. Nonplanar fracture propagation from a horizontal wellbore：experimental study[J]. SPE Prod Facil，1996，11：133-137.
[22]	DONG Z，TANG S B. Numerical study of near-wellbore hydraulic fracture propagation[J]. Theoretical and Applied Fracture Mechanics，2019，103：1-17.
[8]	BRUMLEY J L，ABASS H H. Hydraulic fracturing of deviated wells： interpretation of breakdown and initial fracture opening pressure[C]// SPE Eastern Regional Meeting. [S. l.]：OnePetro，1996.
[35]	YEW C H，SCHMIDT J H. On fracture design of deviated well[R]. SPE 19722，1989.
[3]	ZHAO K，DU P. A new production prediction model for multistage fractured horizontal well in tight oil reservoirs[J]. Advances in Geo-energy Research，2020，4(2)：152-161.
[4]	朱维耀，岳明，刘昀枫，等. 中国致密油藏开发理论研究进展[J]. 工程科学学报，2019，41(9)：1 103-1 114.(ZHU Weiyao，YUE Ming，LIU Yunfeng，et al. Research progress on tight oil exploration in China[J]. Chinese Journal of Engineering，2019，41(9)：1 103-1 114. (in Chinese))
[10]	HOSSAIN M M，RAHMAN M K，RAHMAN S S. A comprehensive monograph for hydraulic fracture initiation from deviated wellbores under arbitrary stress regimes[C]//SPE Asia Pacific oil and gas conference and exhibition. [S. l.]：OnePetro，1999.
[13]	毕振辉，王磊，杨涵志，等. 多簇水力裂缝起裂与扩展物理模拟试验系统研制及验证[J]. 岩石力学与工程学报，2021，40(11)：2 273-2 285.(BI Zhenhui，WANG Lei，YANG Hanzhi，et al. Development and verification of a physical simulation experiment system for initiation and propagation of multiple clusters of hydraulic fractures[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(11)：2 273-2 285.(in Chinese))
[14]	ZHANG R X，HOU B，SHAN Q L，et al. Hydraulic fracturing initiation and near-wellbore nonplanar propagation from horizontal perforated boreholes in tight formation[J]. Journal of Natural Gas Science Engineering，2018，55：337-349.
[18]	李明辉，周福建，胡晓东，等. 大斜度井多簇水力压裂裂缝扩展数值模拟[J]. 科学技术与工程，2020，20(28)：11 555-11 561.(LI Minghui，ZHOU Fujian，HU Xiaodong，et al. Numerical simulation of multi-cluster hydraulic fracture propagation in highly deviated wells[J]. Science Technology and Engineering，2020，20(28)：11 555-11 561.(in Chinese))
[20]	HUANG L K，LIU J J，ZHANG F S，et al. 3D lattice modeling of hydraulic fracture initiation and near-wellbore propagation for different perforation models[J]. Journal of Petroleum Science and Engineering，2020，191：1-13.
[23]	赵凯凯，张镇，李文洲，等. 基于XSite的钻孔起裂水力裂缝三维扩展研究[J]. 岩土工程学报，2021，43(8)：1 483-1 491. (ZHAO Kaikai，ZHANG Zhen，LI Wenzhou，et al. Three-dimensional simulation of hydraulic fracture from a borehole using XSite[J]. Chinese Journal of Geotechnical Engineering，2021，43(8)：1 483-1 491.(in Chinese))
[24]	陈铭，胥云，翁定为. 水平井多段压裂多裂缝扩展形态计算方法[J]. 岩石力学与工程学报，2016，35(增2)：3 906-3 914.(CHEN Ming，XU Yun，WENG Dingwei. Calculation method for multi fracture propagation morphology of multi-stage fracturing in horizontal wells[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(Supp.2)：3 906-3 914.(in Chinese))
[28]	HOU B，CHEN M，LI Z M，et al. Propagation area evaluation of hydraulic fracture networks in shale gas reservoirs[J]. Petroleum Exploration and Development，2014，41(6)：833-838.
[30]	侯冰，张儒鑫，刁策，等. 大斜度井水力压裂裂缝扩展模拟实验分析[J]. 中国海上油气，2016，28(5)：85-91.(HOU Bing，ZHANG Ruxin，DIAO Ce，et al. Experimental investigation on propagation geometry of hydraulic fracture in compact limestone reservoirs[J]. China Offshore Oil and Gas，2016，28(5)：85-91.(in Chinese))
[33]	DUAN W G，SUN B J，PAN D，et al. Experimental study on fracture propagation of hydraulic fracturing for tight sandstone outcrop[J]. Energy Exploration and Exploitation，2021，39(1)：156-179.
[34]	姜浒，陈勉，张广清，等. 定向射孔对水力裂缝起裂与延伸的影响[J]. 岩石力学与工程学报，2009，28(7)：1 321-1 326.(JIANG Hu，CHEN Mian，ZHANG Guangqing，et al. Effect of directional perforation on hydraulic fracture initiation and extension[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(7)：1 321- 1 326.(in Chinese))
[38]	ALEKSEENKO O P，POTAPENKO D I，CHEMY S G，et al. 3D modeling of fracture initiation from perforated nonnoncemented wellbore[J]. SPE Journal，2012，18(3)：589-600.
[1]	郑民，李建忠，吴晓智，等. 我国主要含油气盆地油气资源潜力及未来重点勘探领域[J]. 地球科学，2019，44(3)：833-847. (ZHENG Min，LI Jianzhong，WU Xiaozhi，et al. Potential of oil and natural gas resources of main hydrocarbon-bearing basins and key exploration fields in China[J]. Earth Sciences，2019，44(3)：833-847.(in Chinese))
[2]	孙龙德，邹才能，贾爱林，等. 中国致密油气发展特征与方向[J]. 石油勘探与开发，2019，46(6)：1 015-1 026.(SUN Longde，ZOU Caineng，JIA Ailin，et al. Development characteristics and orientation of tight oil and gas in China[J]. Petroleum Exploration and Development，2019，46(6)：1 015-1 026.(in Chinese))
[5]	侯冰，武安安，常智，等. 页岩油储层多甜点压裂裂缝垂向扩展试验研究[J]. 岩土工程学报，2021，43(7)：1 322-1 330.(HOU Bing，WU Anan，CHANG Zhi，et al. Experimental study on vertical propagation of fractures of multi-sweet of spots shale oil reservoir[J]. Chinese Journal of Geotechnical Engineering，2021，43(7)：1 322-1 330.(in Chinese))
[11]	FALLAHZADEH S H，RASOULI V. SARMADIVALEH M. An investigation of hydraulic fracturing initiation and near-wellbore propagation from perforated boreholes in tight formations[J]. Rock Mechanics and Rock Engineering，2015，48：537-584.
[15]	陈勉，陈治喜，黄荣樽. 大斜度井水压裂缝起裂研究[J]. 石油大学学报：自然科学版，1995，19(2)：30-35.(CHEN Mian，CHEN Zhixi，HUANG Rongzun. Study on large slope well water[J]. Journal of Petroleum University：Natural Science，1995，19(2)：30-35.(in Chinese))
[21]	HOU B，CUI Z，DING J H，et al. Perforation optimization of layer-penetration fracturing for commingling gas production in coal measure strata[J]. Petroleum Science，2022，19(4)：1 718-1 734.
[25]	杨兆中，易良平，李小刚，等. 致密储层水平井段内多簇压裂多裂缝扩展研究[J]. 岩石力学与工程学报，2018，37(增2)：3 870-3 878. (YANG Zhaozhong，YI Liangping，LI Xiaogang，et al. Study on multi cluster fracturing and multi fracture propagation in horizontal well section of tight reservoir[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(Supp.2)：3 870-3 878.(in Chinese))
[31]	CHENG Y G，LU Y Y，GE Z L，et al. Experimental study on crack propagation control and mechanism analysis of directional hydraulic fracturing[J]. Fuel，2018，218：316-324.(in Chinese))
[6]	WANG X H，ZHANG F S，TANG M R，et al. Effect of stress shadow caused by multistage fracturing from multiple well pads on fracture initiation and near-wellbore propagation from infill wells[J]. SPE Journal，2022，27(1)：204-225.
[16]	柳贡慧. 考虑地应力影响下的射孔初始方位角的确定[J]. 石油学报，2001，22(1)：105-108.(LIU Gonghui. Initial perforating azimuth angle considering stress of stratum[J]. Journal of Petroleum，2001，22(1)：105-108.(in Chinese))
[26]	毕振辉，王磊，杨涵志，等. 多簇水力裂缝起裂与扩展物理模拟试验系统研制及验证[J]. 岩石力学与工程学报，2021，40(11)： 2 273-2 285.(BI Zhenhui，WANG Lei，YANG Hanzhi，et al. Development and verification of physical simulation test system for multi cluster hydraulic fracture initiation and propagation[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(11)：2 273-2 285.(in Chinese))
[36]	尹建民，刘元坤，罗超文，等. 原生裂隙水压法三维地应力测量原理及应用[J]. 岩石力学与工程学报，2001，20(增1)：1 706-1 709. (YIN Jianmin，LIU Yuankun，LUO Chaowen，et al. Principle and application of primary fracture water pressure method for 3D geostress measurement[J]. Chinese Journal of Rock Mechanics and Engineering，2001，20(Supp.1)：1 706-1 709.(in Chinese))
[17]	ZENG F H，PENG F，ZENG B，et al. Perforation orientation optimization to reduce the fracture initiation pressure of a deviated cased hole[J]. Journal of Petroleum Science and Engineering，2019，177：829-840.
[19]	SHAN Q L，ZHANG R X，JIANG Y J. Complexity and tortuosity hydraulic fracture morphology due to near-wellbore nonplanar propagation from perforated horizontal wells[J]. Journal of Natural Gas Science and Engineering，2021，89：1-17.
[29]	谭鹏，金衍，侯冰，等. 煤岩定向井水力裂缝起裂及非平面扩展实验[J]. 石油勘探与开发，2017，44(3)：439-445.(TAN Peng，JIN Yan，HOU Bing，et al. Experimental investigation on fracture initiation and non-planar propagation of hydraulic fractures in coal seams[J]. Petroleum Exploration and Development，2017，44(3)： 439-445.(in Chinese))
[27]	柳贡慧，庞飞，陈治喜. 水力压裂模拟实验中的相似准则[J]. 石油大学学报：自然科学版，2000，24(5)：45-48.(LIU Gonghui，PANG Fei，CHEN Zhixi. Similar guidelines in hydraulic fracturing simulation experiments[J]. Journal of Petroleum University：Natural Science，2000，24(5)：45-48.(in Chinese))
[32]	GUO T，TANG S，LIU S，et al. Physical simulation of hydraulic fracturing of large-sized tight sandstone outcrops[J]. SPE Journal，2021，26(1)：372-393.
[37]	张保平，方竞，田国荣，等. 水力压裂中的近井筒效应[J]. 岩石力学与工程学报，2004，23(14)：2 476-2 479.(ZHANG Baoping，FANG Jing，TIAN Guorong，et al. Near wellbore effect in hydraulic fracturing[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(14)：2 476-2 479.(in Chinese))