第38卷第3期 2016年5月
石
油
钻
采
工
艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2016)03034705
DOI: 10.13639/j.odpt.2016.03.014
Vol. 38 No. 3 May 2016
考虑应力场变化的水平井压后产能计算方法
水平井井筒沿最小主应力方向杨立峰1-2钟太贤”陈超峰4丁云宏2刘哲1.2
1.中国石油天然气集团公司油气藏改造重点实验室；2.中国石油勘探开发研究院康坊分院；
3.中国石油天然气集团公司科技管理部；4.中国石油新疆油田分公司
引用格式：杨立峰，钟太贤，陈超峰，丁云宏，刘督。考虑应力场变化的水平井压后产能计算方法应力方向[J]，石油钻采工艺,2016,38(3)：347-351.
—水平井井筒沿最小主
摘要：低渗、特低渗油气赢水平并的分段压象产能模拟计算，一般不考虑储层应力变化对款缝形态的影响，计算误差较大将二维诱导应力场计算模型与预估的每段分压时间隔相结合，计算已存在的人工裂缝对应力场变化的影响，预测后续压裂人工裂缝形态，并根据预测结果建立地质模型，采用三维三相黑油模型计算水平井压后产能，从而建立主了考虑人工聚缝存在时应
力场变化后的水平并分段压裂产能计算方法。
结果表明，在考患应力场变化时，人工裂缝形态会发生明显变化，由预期的横划
裂缝，变成类似于“T"形的人工裂缝，且横切缝部分会远离预定的射孔性置。JM油实例分析得出，考虑8条横切裂缝存在时水平并产能与不考虑应力场变化时所计算的产能相比，5年末的累计产量相差5.6%，验证了进行水平并分段压裂产能计算时考虑实施过程中应力场变化的必要性。
关键词：低渗透；特低渗透；水平井分段；应力场；产能模拟
中图分类号：TE357.1
文献标识码：A
Post-fracturing productivity computation method of horizontal well with consideration to stress
field variation: along the minimum principal stress in horizontal wellbore
YANG Lifeng”, ZHONG Taixian', CHEN Chaofeng, DING Yunong", LIU Zhe-2
1. CNPC Key Labonafory for Refovmationt of Oil and Gas Reservoirs, Langfang, Hebei 065007, China; 2. Langfang Branch of PeroChina Research Institrte of Petroleum Explorationr and Development, Langfang, Hebei 065007, China; 3. CNPC Science and Technology Mamagement Deparment,
Beijing 100007, China; 4. PetroChina Xinjiang Oifeld Company, Karamay, Xinjiang 834000, Chinr
Citation: YANG Lifeng, ZHONG Taixian, CHEN Chaofeng, DING Yunhong, LIU Zhe. Post-fracturing productivity computation method of horizontal well with consideration to stress field variation: along the minimum principal stress in horizontal wellbore [ J] Oil Drilling &: Production Technology, 2016, 38(3): 347-351.
Abstract: The effect of reservoir stress variation on the fracture morphology is usually not considered in the simulation calculation o e e e ad e ead o sa eo aaod e as large calculation errors. In this paper, the 2D induced stress field computation model was combined with the estimated staged fracturing time interval in each stage to calculate the effect of the existing artificial fractures on the stress field variation and predict the artificial fracture morphology in subsequent fracturing. Then, based on the prediction results, a geologic model was established, and the 3D three-phase black-oil model was used to calculate the post-fracturing productivity of horizontal wells. Finally, a staged fracturing productivity computation method of horizontal wells with consideration to the stress field variation in case of existence of artificial fractures was defined. According to the study results, when the stress field variation is considered, the artificial fracture morphology would change
基金项目：国家科技重大专项“低渗、特低渗法气端层高效改造关键技术"（编号：2011ZX05013-03)；中国石油天然气股份有限公司科第一作者：杨立峰（1979-),2002年毕业于中国石动大学（北京）油气开发专业，硕士研究生，现主要从事水力压梨技术的研究工作
通讯地址：(065007)河北省序坊市万庄.石油分院44#信箱。电话：010-69213712。E-mail：yanglifeng_9500@126.com
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