Inter-Well Connectivity and Controlling Factors of Ultra-Deep Fault-Controlled Fractured-Vuggy Reservoirs in the Shunbei No.1 Fault Zone, Traim Basin

doi:10.7657/XJPG20250406

Abstract

Abstract:

Ultra-deep fault-controlled fractured-vuggy reservoirs are typically characterized by deep and large fault-controlled hydrocarbon accumulation and preservation. Under the influence of multi-stage tectonism and paleokarstification, the reservoirs have strong heterogeneity and stress sensitivity, leading to unclear inter-well connectivity during the oilfield development process and complex inter-well connection modes, which greatly affect the performance of water/gas injection in production wells. As a fundamental task guiding the waterflooding development of fault-controlled fractured-vuggy carbonate reservoirs, the judgment of the inter-well connectivity is of vital significance. This paper proposes a dynamic-static collaborative analysis method by multi-source data fusion. Based on the division results of statically connected units, using the production performance data and pressure data, several methods such as static pressure analysis, quasi-interference analysis, and production feature similarity, are combined with the well test responses to judge the dynamic connectivity of the statically connected units in the study area. Meanwhile, the changes in the connectivity are analyzed. The proposed method gets ride of the problems of insufficient multi-source data fusion and low efficiency of development data existing in conventional inter-well connectivity analysis.

Key words: Shunbei No.1 fault zone, ultra-deep stratum, fault-controlled reservoir, inter-well connectivity, quasi-interference analysis, production performance similarity

CLC Number:

TE34

LUO Rong, CHEN Shuyang, HE Yunfeng, WANG Zhou, LI Wenliang, LIU Gangbo, WANG Xiao. Inter-Well Connectivity and Controlling Factors of Ultra-Deep Fault-Controlled Fractured-Vuggy Reservoirs in the Shunbei No.1 Fault Zone, Traim Basin[J]. Xinjiang Petroleum Geology, 2025, 46(4): 438-447.

Figures/Tables 12

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Table 1.

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Table 2.

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Table 3.

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Table 4.

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Table 5.

References 23

[1]	廖明光, 廖成基, 陈小凡. 动静态方法在油藏井间连通性分析中的应用研究[J]. 特种油气藏, 2020, 27(3):131-136.
	LIAO Mingguang, LIAO Chengji, CHEN Xiaofan. Application of dynamic and static analyses in inter-well connectivity characterization[J]. Special Oil & Gas Reservoirs, 2020, 27(3):131-136.
[2]	瞿朝朝, 刘斌, 宋洪亮, 等. 基于动静态资料综合判断聚驱后的油藏井间连通性:以渤海L油田为例[J]. 石油地质与工程, 2021, 35(2):76-79.
	QU Chaochao, LIU Bin, SONG Hongliang, et al. Inter well connectivity of reservoir after polymer flooding based on dynamic and static data coupling judgment method:By taking Bohai L oilfield as an example[J]. Petroleum Geology and Engineering, 2021, 35(2):76-79.
[3]	邓兴梁, 曹鹏, 李世银, 等. 缝洞型碳酸盐岩油藏连通性识别方法探讨:以轮古西潜山油藏为例[J]. 重庆科技学院学报(自然科学版), 2012, 14(3):71-74.
	DENG Xingliang, CAO Peng, LI Shiyin, et al. The method to distinguish the connectivity of the carbonate fractured-vuggy reservoir:Taking the Lunguxi reservoir as example[J]. Journal of Chongqing University of Science and Technology(Natural Science Edition), 2012, 14(3):71-74.
[4]	杜鹃红. 干扰试井技术在油藏描述和动态调整中的应用[J]. 油气井测试, 2008, 17(6):32-34.
	DU Juanhong. Application of tech of interference well test in oil reservoir description and performance adjustment[J]. Well Testing, 2008, 17(6):32-34.
[5]	苏群英, 熊念, 张静. 应用脉冲试井分析注聚油藏井间连通性[J]. 辽宁化工, 2012, 41(9):951-952.
	SU Qunying, XIONG Nian, ZHANG Jing. Analyzing inter-well connectivity of polymer-flooded reservoirs with pulse-testing method[J]. Liaoning Chemical Industry, 2012, 41(9):951-952.
[6]	张新宝, 李留仁. 碳酸盐岩缝洞型油藏井间连通性的示踪剂监测:以塔河油田T402注采井组为例[J]. 西安石油大学学报(自然科学版), 2019, 34(6):55-59.
	ZHANG Xinbao, LI Liuren. Tracer monitoring for interwell connectivity in fractured-vuggy carbonate reservoirs:A case study of T402 injection-production well group in Tahe oilfield[J]. Journal of Xi’an Shiyou University(Natural Science Edition), 2019, 34(6):55-59.
[7]	易斌, 崔文彬, 鲁新便, 等. 塔河油田碳酸盐岩缝洞型储集体动态连通性分析[J]. 新疆石油地质, 2011, 32(5):469-472.
	YI Bin, CUI Wenbin, LU Xinbian, et al. Analysis of dynamic connectivity on carbonate reservoir with fracture and cave in Tahe field,Tarim Basin[J]. Xinjiang Petroleum Geology, 2011, 32(5):469-472.
[8]	康志宏, 陈琳, 鲁新便, 等. 塔河岩溶型碳酸盐岩缝洞系统流体动态连通性研究[J]. 地学前缘, 2012, 19(2):110-120.
	KANG Zhihong, CHEN Lin, LU Xinbian, et al. Fluid dynamic connectivity of karst carbonate reservoir with fracture & cave system in Tahe oilfield[J]. Earth Science Frontiers, 2012, 19(2):110-120.
[9]	曹丹平, 印兴耀, 张繁昌, 等. 井间地震资料精细解释方法研究与应用[J]. 地球物理学进展, 2008, 23(4):1209-1215.
	CAO Danping, YIN Xingyao, ZHANG Fanchang, et al. On the interpretation method research and application of crosswell seismic data[J]. Progress in Geophysics, 2008, 23(4):1209-1215.
[10]	李海英, 李伟, 刘军, 等. 两步相控反演在塔里木盆地顺北8井区碳酸盐岩断控储集体预测中的应用[J]. 天然气地球科学, 2023, 34(11):1961-1970. doi: 10.11764/j.issn.1672-1926.2023.05.009
	LI Haiying, LI Wei, LIU Jun, et al. Two-step facies-constrained inversion in prediction of carbonate rock fault-controlled reservoirs with post stack seismic in No.8 structure of Shunbei block,Tarim Basin[J]. Natural Gas Geoscience, 2023, 34(11):1961-1970. doi: 10.11764/j.issn.1672-1926.2023.05.009
[11]	廖红伟, 王琛, 左代荣. 应用不稳定试井判断井间连通性[J]. 石油勘探与开发, 2002, 29(4):87-89.
	LIAO Hongwei, WANG Chen, ZUO Dairong. Applying transient testing to the judgement of inter-well connectivity[J]. Petroleum Exploration and Development, 2002, 29(4):87-89.
[12]	彭文丰, 漆智, 张乔良, 等. 井间连通综合分析方法在复杂断块油藏的应用[J]. 海洋石油, 2015, 35(3):33-37.
	PENG Wenfeng, QI Zhi, ZHANG Qiaoliang, et al. Application of comprehensive method for analyzing interwell communication in complex faulted block reservoirs with distributary channels[J]. Offshore Oil, 2015, 35(3):33-37.
[13]	顾浩, 康志江, 尚根华, 等. 超深层断控缝洞型油藏油井合理产能优化方法及应用[J]. 新疆石油地质, 2023, 44(1):64-69.
	GU Hao, KANG Zhijiang, SHANG Genhua, et al. Reasonable productivity optimization methods and application in ultra-deep fault-controlled fractured-vuggy reservoirs[J]. Xinjiang Petroleum Geology, 2023, 44(1):64-69.
[14]	刘学利, 谭涛, 陈勇, 等. 顺北一区断溶体油藏溶解气驱开发特征[J]. 新疆石油地质, 2023, 44(2):195-202.
	LIU Xueli, TAN Tao, CHEN Yong, et al. Development characteristics of solution-gas drive in fault-karst reservoirs in Shunbei-1 block[J]. Xinjiang Petroleum Geology, 2023, 44(2):195-202.
[15]	卢志强, 马乃拜, 尼加提, 等. 顺北油田深层断溶体内部结构物探表征研究[J]. 内蒙古石油化工, 2022, 48(6):115-120.
	LU Zhiqiang, MA Naibai, NI Jiati, et al. Research and application of fault-karst characterization technology in Shunbei oilfield[J]. Inner Mongolia Petrochemical Industry, 2022, 48(6):115-120.
[16]	刘军, 李伟, 龚伟, 等. 顺北地区超深断控储集体地震识别与描述[J]. 新疆石油地质, 2021, 42(2):238-245.
	LIU Jun, LI Wei, GONG Wei, et al. Seismic identification and description of ultra-deep fault-controlled reservoirs in Shunbei area[J]. Xinjiang Petroleum Geology, 2021, 42(2):238-245.
[17]	潘婷婷, 蔡银涛, 葸晓宇, 等. 井间储层连通性分析技术在新疆油田的应用[J]. 石油地球物理勘探, 2022, 57(增刊2):179-184.
	PAN Tingting, CAI Yintao, XI Xiaoyu, et al. Application of reservoir connectivity analysis technology between wells in Xinjiang oilfield[J]. Oil Geophysical Prospecting, 2022, 57(Supp.2):179-184.
[18]	查玉强. 基于试井反馈信号判定小层连通性技术[J]. 海洋石油, 2019, 39(2):29-34.
	ZHA Yuqiang. Technology for determining small layer connectivity based on well test feedback signals[J]. Offshore Oil, 2019, 39(2):29-34.
[19]	熊国荣, 张国报, 李玖梅. 应用干扰试井资料确定文79北块合理注采井网[J]. 断块油气田, 2000, 7(4):38-40.
	XIONG Guorong, ZHANG Guobao, LI Jiumei. Determination of injection-production well pattern in the north of Wen 79 block with interference well test[J]. Fault-Block Oil & Gas Field, 2000, 7(4):38-40.
[20]	苏泽中, 林加恩, 柏明星, 等. 天然能量开发阶段的缝洞型油藏井间连通性分析[J]. 深圳大学学报(理工版), 2020, 37(6):645-652.
	SU Zezhong, LIN Jiaen, BAI Mingxing, et al. Inter-well connectivity analysis in carbonate fracture-vuggy reservoir in natural energy development stage[J]. Journal of Shenzhen University(Science and Engineering), 2020, 37(6):645-652.
[21]	张艺晓, 李小波, 尚根华, 等. 断溶体油藏应力敏感特征研究[J]. 油气藏评价与开发, 2023,13:(1)127-134.
	ZHANG Yixiao, LI Xiaobo, SHANG Genhua, et al. Stress sensitive characteristics of fault-karst reservoir[J]. Petroleum Reservoir Evaluation and Development, 2023, 13(1):127-134.
[22]	蒋廷学, 周珺, 贾文峰, 等. 顺北油气田超深碳酸盐岩储层深穿透酸压技术[J]. 石油钻探技术, 2019, 47(3):140-147.
	JIANG Tingxue, ZHOU Jun, JIA Wenfeng, et al. Deep penetration acid fracturing technology for ultra-deep oil and gas reservoirs in the Shunbei oil and gas field[J]. Petroleum Drilling Techniques, 2019, 47(3):140-147.
[23]	赵兵, 李春月, 房好青, 等. 顺北断溶体油藏重复酸压时机优化研究[J]. 非常规油气, 2021, 8(5):100-105.
	ZHAO Bing, LI Chunyue, FANG Haoqing, et al. Optimization of repeated acid fracturing timing in Shunbei fault solution reservoir[J]. Unconventional Oil & Gas, 2021, 8(5):100-105.

静态连通单元	井名	脱气前单位压降产液量/ （t·MPa^-1）	储集体类型	静态连通单元	井名	脱气前单位压降产液量/ （t·MPa^-1）	储集体类型
SH-BP3H	SHB1-9井		洞穴型	SHB1-1H	SHB1-20H井	1 330	洞穴型
	SHB1-17CH井	568	裂缝-孔洞型		SHB1-1H井	2 335	洞穴型
	SH-BP3H井	925	洞穴型		SHB1-4HCH井	1 393	洞穴型
	SHB1-8H井	776	裂缝-孔洞型		SHB1-5H井	2 424	洞穴型
SHB1-6H	SHB1-3井	17 674	洞穴型		SHB1-2H井	2 413	洞穴型
	SHB1CX井	6 044	裂缝型		SHB1-13CH井	681	裂缝-孔洞型
	SHB1-19H井	956	裂缝-孔洞型		SHB1-24X井	2 261	洞穴型
	SHB1-10H井	1 391	洞穴型		SHB1-11井	1 226	洞穴型
	SHB1-18H井	666	裂缝型	SHB1-12H	SHB1-14井	1 038	洞穴型
	SHB1-6H井	1 402	洞穴型		SHB1-12井	879	裂缝-孔洞型
	SHB1-22H井	2 222	裂缝型		SHB1-15井	2 375	洞穴型
SHB1-1H	SHB1-7H井	3 191	洞穴型		SHB1-16H井	生产波动大	裂缝-孔洞型

观察井措施	邻井流压动态变化	邻井流体势动态变化
投产	流压下降/流压下降趋势加快	流体势下降/流体势下降趋势加快
关井	流压上升/流压下降趋势变缓	流体势上升/流体势下降趋势变缓
调大油嘴	流压下降/流压下降趋势加快	流体势下降/流体势下降趋势加快
调小油嘴	流压上升/流压下降趋势变缓	流体势上升/流体势下降趋势变缓

阶段	井名	归一化欧氏距离
阶段	井名	SHB1-1H井	SHB1-2H井	SHB1-20H井	SHB1-5H井	SHB1-7H井
SHB1-1H静态连通单元阶段一	SHB1-1H井	0	0.062	0.072	0.056	0.034
	SHB1-2H井	0.062	0	0.031	0.019	0.035
	SHB1-20H井	0.072	0.031	0	0.033	0.044
	SHB1-5H井	0.056	0.019	0.033	0	0.031
	SHB1-7H井	0.034	0.035	0.044	0.031	0
SHB1-1H静态连通单元阶段二酸化压裂前	SHB1-1H井	0	0.016	0.031	0.062	0.012
	SHB1-2H井	0.016	0	0.018	0.049	0.017
	SHB1-20H井	0.031	0.018	0	0.037	0.031
	SHB1-5H井	0.062	0.049	0.037	0	0.060
	SHB1-7H井	0.012	0.017	0.031	0.060	0
SHB1-1H静态连通单元阶段二酸化压裂后	SHB1-1H井	0	0.068	0.039	0.089	0.035
	SHB1-2H井	0.068	0	0.104	0.030	0.066
	SHB1-20H井	0.039	0.104	0	0.122	0.055
	SHB1-5H井	0.089	0.030	0.122	0	0.089
	SHB1-7H井	0.035	0.066	0.055	0.089	0

井名	类干扰响应	试井响应	生产曲线相似性	是否连通	动态连通井组划分
SHB1-1H井与SHB1-7H井	具有	具有	相似	连通	井组1：SHB1-1H井、SHB1-7H井、SHB1-20H井
SHB1-1H井与SHB1-20H井	具有		相似	连通
SHB1-7H井与SHB1-20H井	具有	具有		连通
SHB1-4HCH井与SHB1-2H井	具有		相似	连通	井组2：SHB1-4HCH井、SHB1-5H井、SHB1-2H井、SHB1-13CH井
SHB1-4HCH井与SHB1-5H井	具有	具有	相似	连通
SHB1-5H井与SHB1-2H井		具有	相似	连通
SHB1-5H井与SHB1-13CH井	具有		相似	连通
SHB1-2H井与SHB1-4HCH井	具有		相似	连通
SHB1-24X井				单井单元	单井单元1：SHB1-11井
SHB1-11井				单井单元	单井单元2：SHB1-24X井

井名	阶段	归一化欧氏距离
井名	阶段	SHB1-1H井	SHB1-2H井	SHB1-20H井	SHB1-5H井	SHB1-7H井
SHB1-5H井	酸化压裂前	0.062	0.049	0.037	0	0.060
SHB1-5H井	酸化压裂后	0.089	0.030	0.122	0	0.089
SHB1-7H井	酸化压裂前	0.012	0.017	0.031	0.060	0
SHB1-7H井	酸化压裂后	0.035	0.066	0.055	0.089	0