气顶底水油藏水平井临界产量计算方法

doi:10.3969/j.issn.1673-8926.2015.01.018

LITHOLOGIC RESERVOIRS ›› 2015, Vol. 27 ›› Issue (1): 122-126.doi: 10.3969/j.issn.1673-8926.2015.01.018

Previous Articles Next Articles

New method for determining critical rate of horizontal well in gas cap and bottom water reservoirs

YUAN Lin¹,LI Xiaoping¹,LIU Panpan²

1. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation ， Southwest Petroleum University ， Chengdu 610500 ， China ；2. No. 1 Gas Production Plant ， PetroChina Changqing Oilfield Company ， Yulin 718500 ， Shannxi ， China

Online:2015-02-03 Published:2015-02-03

Abstract

Abstract:

Critical rate of horizontal well in gas cap and bottom water reservoirs is an important factor to measure whether the water and gas had breaked through oil-well earlier or not, so calculating its value accurately is of great significance during developing the gas cap and bottom water reservoirs. Based on the cresting mechanism of bottom water and gas cap around bore hole of horizontal well, this paper considered the ellipsoid constant pressure surfaces as family of the rectangles, used the principle of elliptical flow to deduct a new model for calculating the critical rate of horizontal well in gas cap and bottom water reservoirs. Through actual calculation and contrast, the result calculated by new model only has a small relative error with that calculated by numerical simulation method, only 9.08%. Moreover, when the reservoir thickness is big enough, the error will become smaller, which demonstrates that the new model has higher accuracy and practicability. Sensitivity analysis shows that with the increasing of dimensionless wellbore location, the critical rate presents increasing early, but decreasing when the dimensionless wellbore location has reached a high value. The critical rate gets maximum value when the dimensionless wellbore position is 0.4 because of the physical character differences between gas and water. So during developing the gas cap and bottom water reservoirs with horizontal well, it would be best to prefer the horizontal wellbore location so as to keep higher critical rate.

Key words: experimental analysis technology, tight reservoirs, Lucaogou Formation, Permian, Jimsar Sag, Junggar

YUAN Lin 1,LI Xiaoping 1,LIU Panpan 2. New method for determining critical rate of horizontal well in gas cap and bottom water reservoirs[J].LITHOLOGIC RESERVOIRS, 2015, 27(1): 122-126.

References

［1］喻高明，凌建军，王家宏，等.气顶底水油藏开采特征及开发策略———以塔中 402 油藏为例［J］.石油天然气学报（江汉石油学院学报），2007，29（6）：142-145.

Yu Gaoming，Ling Jianjun，Wang Jiahong，et al. The exploitation characteristics and development strategy in gas cap and bottom water reservoir—Taking Tazhong 402 reservoir as an example［J］. Journal of Oil and Gas Technology（Journal of Jianghan Petroleum Institute），2007，29（6）：142-145.

［2］赵良金，王军.卫 2 块气顶底水油气藏剩余油分布研究［J］.西南石油大学学报：自然科学版，2008，30（1）：93-95.

Zhao Liangjin，Wang Jun. Remaining oil distribution in bottom water oil reservoir with gas cap of Wei 2 block［J］. Journal of Southwest Petroleum University：Science & Technology Edition，2008，30 （1）：93-95.

［3］范子菲，傅秀娟，方宏长.气顶底水油藏水平井锥进的油藏工程研究［J］.大庆石油地质与开发，1995，14（3）：38-43.

Fan Zifei，Fu Xiujuan，Fang Hongchang. Reservoir engineering study of coning in horizontal well in a reservoir with gas cap and bottom water drive［J］. Petroleum Geology & Oilfield Development in Daqing，1995，14（3）：38-43.

［4］范子菲，傅秀娟.气顶底水油藏水平井产能公式和见水时间研究［J］.中国海上油气（地质），1995，9（6）： 406- 413.

Fan Zifei，Fu Xiujuan. Study of productivity and breakthrough time of horizontal well in a reservoir with gas-cap and bottom-water drive［J］. China Offshore Oil and Gas（Geology），1995，9（6）：406-413.

［5］范子菲.气顶底水油藏水平井试井解释方法研究［J］.油气井测试，1996，5（4）：25-32.

Fan Zifei. Study on well test interpretation of horizontal well in a reservoir with gas-cap and bottom-water drive［J］. Well Test，1996，5（4）：25-32.

［6］王德龙，凌建军，郑双进，等.气顶底水油藏水平井最优垂向位置研究［J］.断块油气田，2008，15（4）：76-79.

Wang Delong，Peng Jianjun，Zheng Shuangjin，et al. Study on optimum vertical location of horizontal wells in reservoir with bottom water and gas cap［J］. Fault-block Oil & Gas Field，2008，15（4）：76-79.

［7］伍增贵，孙新民.气顶底水油藏中水平井双向脊进研究［J］.新疆石油地质，2008，29（5）：622-625.

Wu Zenggui，Sun Xinmin. A study of dual cresting of horizontal wells in reservoirs with gas cap and bottom water ［J］. Xinjiang Petroleum Geology，2008，29（5）：622-625.

［8］时宇，杨正明，张训华.气顶底水油藏水平井井间干扰研究［J］. 大庆石油地质与开发，2008，27（5）：62-66.

Shi Yu，Yang Zhengming，Zhang Xunhua. Interwell interference study on horizontal well in gas-cap oil reservoir with bottom water ［J］. Petroleum Geology & Oilfield Development in Daqing，2008，27（5）：62-66.

［9］陆燕妮，邓勇，陈刚.塔河油田缝洞型底水油藏临界产量计算研究［J］.岩性油气藏，2009，21（4）：108-110.

Lu Yanni，Deng Yong，Chen Gang. Calculation method of critical production rate for fractured-vuggy reservoir with bottom water［J］. Lithologic Reservoirs，2009，21（4）：108-110.

［10］王庆，刘慧卿，曹立迎.非均质底水油藏水平井水淹规律研究［J］.岩性油气藏，2010，22（1）：122-125.

Wang Qing，Liu Huiqing，Cao Liying. Water flooding law of horizontal well in heterogeneous bottom water reservoir［J］. Lithologic Reservoirs， 2010，22（1）:122-125.

［11］王涛，赵进义.底水油藏水平井含水变化影响因素分析［J］.岩性油气藏，2012，24（3）：103-107.

Wang Tao，Zhao Jinyi. Influencing factors of water cut for horizontal wells in bottom water reservoir ［J］. Lithologic Reservoirs，2012，24（3）：103-107.

［12］陈元千.预测水锥和气锥水平井临界产量的新方法［J］.中国海上油气，2010，22（1）：22-26.

Chen Yuanqian. New methods to predict critical production retes in horizontal wells with water and gas coning［J］. China Offshore Oil and Gas，2010，22（1）：22-26.

［13］吕劲.水平井稳态产油量解析公式及讨论［J］.石油勘探与开发，1994，20（6）：135-140.

Lü Jin. An analytical solution of steady-state flow equation for the productivity of a horizontal well ［J］. Petroleum Exploration and Development，1994，20（6）：135-140.

［14］熊健，曾山，王绍平.低渗透油藏变导流垂直裂缝井产能模型［J］.岩性油气藏，2013，25（6）：122-126.

Xiong Jian，Zeng Shan，Wang Shaoshan. A productivity model of vertically fractured well with varying conductivity for low permeability reservoirs［J］. Lithologic Reservoirs，2013，25（6）：122-126.

［15］张烈辉，张苏，熊燕莉，等.低渗透气藏水平井产能分析［J］.天然气工业，2010，30（1）：49-51.

Zhang Liehui，Zhang Su，Xiong Yanli，et al. Productivity analysis of horizontal gas wells for low permeability gas reservoirs ［J］.Natural Gas Industry，2010，30（1）：49-51.

Related Articles 15

[1]	LI Daoqing, CHEN Yongbo, YANG Dong, LI Xiao, SU Hang, ZHOU Junfeng, QIU Tingcong, SHI Xiaoqian. Intelligent comprehensive prediction technology of coalbed methane “sweet spot”reservoir of Jurassic Xishanyao Formation in Baijiahai uplift，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(6): 23-35.
[2]	BAI Yubin, LI Mengyao, ZHU Tao, ZHAO Jingzhou, REN Haijiao, WU Weitao, WU Heyuan. Geochemical characteristics of source rocks and evaluation of shale oil “sweet spot”of Permian Fengcheng Formation in Mahu Sag [J]. Lithologic Reservoirs, 2024, 36(6): 110-121.
[3]	WANG Yifeng, TIAN Jixian, LI Jian, QIAO Tong, LIU Chenglin, ZHANG Jingkun, SHA Wei, SHEN Xiaoshuang. Geochemical characteristics of Permian condensate oil and gas and phase types in southwest of Mahu Sag [J]. Lithologic Reservoirs, 2024, 36(6): 149-159.
[4]	QIAO Tong, LIU Chenglin, YANG Haibo, WANG Yifeng, LI Jian, TIAN Jixian, HAN Yang, ZHANG Jingkun. Characteristics and genetic mechanism of condensate oil and gas of the Jurassic Sangonghe Formation in western well Pen-1 sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(6): 169-180.
[5]	YU Qixiang, LUO Yu, DUAN Tiejun, LI Yong, SONG Zaichao, WEI Qingliang. Reservoir forming conditions and exploration prospect of Jurassic coalbed methane encircling Dongdaohaizi sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(6): 45-55.
[6]	YANG Haibo, FENG Dehao, YANG Xiaoyi, GUO Wenjian, HAN Yang, SU Jiajia, YANG Huang, LIU Chenglin. Characteristics of source rocks and thermal evolution simulation of Permian Pingdiquan Formation in Dongdaohaizi Sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(5): 156-166.
[7]	WEI Chenglin, ZHANG Fengqi, JIANG Qingchun, LU Xuesong, LIU Gang, WEI Yanzhao, LI Shubo, JIANG Wenlong. Formation mechanism and evolution characteristics of overpressure in deep Permian in eastern Fukang Sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(5): 167-177.
[8]	XU Tianlu, WU Chengmei, ZHANG Jinfeng, CAO Aiqiong, ZHANG Teng. Natural fracture characteristics and fracture network simulation in shale reservoirs of Permian Lucaogou Formation in Jimsar Sag [J]. Lithologic Reservoirs, 2024, 36(4): 35-43.
[9]	BAO Hanyong, ZHAO Shuai, ZHANG Li, LIU Haotian. Exploration achievements and prospects for shale gas of Middle-Upper Permian in Hongxing area，eastern Sichuan Basin [J]. Lithologic Reservoirs, 2024, 36(4): 12-24.
[10]	SHEN Youyi, WANG Kaifeng, TANG Shuheng, ZHANG Songhang, XI Zhaodong, YANG Xiaodong. Geological modeling and“sweet spot”prediction of Permian coal measures shale reservoirs in Yushe-Wuxiang block，Qinshui Basin [J]. Lithologic Reservoirs, 2024, 36(4): 98-108.
[11]	TANG Shukai, GUO Tiankui, WANG Haiyang, CHEN Ming. Numerical simulation of fracture propagation law of in-fracture temporary plugging and diverting fracturing in tight reservoirs [J]. Lithologic Reservoirs, 2024, 36(4): 169-177.
[12]	SHAO Wei, ZHOU Daorong, LI Jianqing, ZHANG Chengcheng, LIU Tao. Key factors and favorable exploration directions for oil and gas enrichment in back margin sag of thrust nappe in Lower Yangtze [J]. Lithologic Reservoirs, 2024, 36(3): 61-71.
[13]	DUAN Yifei, ZHAO Weiwei, YANG Tianxiang, LI Fukang, LI Hui, WANG Jianan, LIU Yuchen. Source-reservoir characteristics and accumulation rules of shale gas of Permian Shanxi Formation in Yan'an area, Ordos Basin [J]. Lithologic Reservoirs, 2024, 36(3): 72-83.
[14]	BIAN Baoli, LIU Hailei, JIANG Wenlong, WANG Xueyong, DING Xiujian. Discovery and exploration enlightenment of Carboniferous volcanic condensate gas reservoirs in western well Pen-1 sag，Junggar Basin [J]. Lithologic Reservoirs, 2024, 36(3): 96-105.
[15]	WANG Hongbo, ZHANG Lei, CAO Qian, ZHANG Jianwu, PAN Xing. Sedimentary model of fluvial fan of Permian He-8 member in Ordos Basin and its exploration significance [J]. Lithologic Reservoirs, 2024, 36(3): 117-126.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 10

[1]	HUANG Sijing,HUANG Peipei,WANG Qingdong,LIU Haonian,WU Meng,ZOU Mingliang. The significance of cementation in porosity preservation in deep-buried sandstones[J]. Lithologic Reservoirs, 2007, 19(3): 7 -13 .
[2]	LIU Zhen,CHEN Yanpeng,ZHAO Yang,HAO Qi,XU Xiaoming,CHANG Mai. Distribution and controlling factors of hydrocarbon reservoirs in continental fault basins[J]. Lithologic Reservoirs, 2007, 19(2): 121 -127 .
[3]	DING Chao，GUO Lan，YAN Jifu. Forming conditions of Chang 6 reservoir in Anding area of Zichang Oilfield[J]. Lithologic Reservoirs, 2009, 21(1): 46 -50 .
[4]	LI Yanshan，ZHANG Zhansong，ZHANG Chaomo，CHEN Peng. Application of mercury injection data to Chang 6 reservoir classification in Changqing area[J]. Lithologic Reservoirs, 2009, 21(2): 91 -93 .
[5]	LUO Peng,LI Guorong,SHI Zejin,ZHOU Dazhi,TANG Hongwei,ZHANG Deming. Analysis of sequence stratigraphy and sedimentary facies of M aokou Formation in southeastern Sichuan[J]. Lithologic Reservoirs, 2010, 22(2): 74 -78 .
[6]	ZUO Guoping， TU Xiaolong， XIA Jiufeng. Study on volcanic reservoir types in Subei exploration area[J]. Lithologic Reservoirs, 2012, 24(2): 37 -41 .
[7]	WANG Feiyu. Method to improve producing degree of thermal recovery horizontal wells and its application[J]. Lithologic Reservoirs, 2010, 22(Z1): 100 -103 .
[8]	YUAN Yunfeng，CAI Ye，FAN Zuochun，JIANG Yiyang，QIN Qirong， JIANG Qingping. Fracture characteristics of Carboniferous volcanic reservoirs in Hongche fault belt of Junggar Basin[J]. Lithologic Reservoirs, 2011, 23(1): 47 -51 .
[9]	YUAN Jianying， FU Suotang， CAO Zhenglin， YAN Cunfeng，ZHANG Shuichang， MA Dade. Multi-source hydrocarbon generation and accumulation of plateau multiple petroleum system in Qaidam Basin[J]. Lithologic Reservoirs, 2011, 23(3): 7 -14 .
[10]	SHI Zhanzhan， HE Zhenhua， WEN Xiaotao， TANG Xiangrong. Reservoir detection based on EMD and GHT[J]. Lithologic Reservoirs, 2011, 23(3): 102 -105 .

TRENDMD: