稠油热采不同开发技术潜力评价  

Potential evaluation of different thermalrecovery technologies for heavy oil

作　　者：顾浩[1] 孙建芳[1] 秦学杰[1] 董翠[1] 李洪毅 郑昕 GU Hao;SUN Jianfang;QIN Xuejie;DONG Cui;LI Hongyi;ZHENG Xin(Petroleum Exploration & Production Research Institute,SINOPEC,Beijing City,100083,China;Exploration and Production Research Institute,Shengli Oilfield Company,SINOPEC,Dongying City,Shandong Province,257015,China)

机构地区：[1]中国石化石油勘探开发研究院,北京100083 [2]中国石化胜利油田分公司勘探开发研究院,山东东营257015

出　　处：《油气地质与采收率》2018年第3期112-116,共5页Petroleum Geology and Recovery Efficiency

基　　金：国家科技重大专项"稠油;碳酸盐岩和致密油藏开发主体技术与应用潜力"(2016ZX05016-006)

摘　　要：为评价中国石化不同稠油热采开发技术的潜力,针对蒸汽吞吐加密和蒸汽驱2种提高采收率技术,利用财务净现值、油藏数值模拟和成本分析法,绘制蒸汽吞吐单井经济极限产油量和蒸汽驱经济极限油汽比图版,建立了2种油藏埋深、2种井型蒸汽吞吐加密潜力评价标准,修订了蒸汽驱潜力评价标准,并以中国石化W油田为例开展实例应用。研究结果表明:当油藏埋深一定时,随着油价下降,无论是直井还是水平井,蒸汽吞吐单井经济极限产油量均呈指数增加;在油价为60美元/bbl时,中国石化稠油油藏蒸汽驱经济极限油汽比为0.096 t/t,W油田蒸汽吞吐加密和蒸汽吞吐直接转蒸汽驱新增可采储量分别为32.4×10~4和71.1×10~4t,总潜力为103.5×10~4t,当油价为80美元/bbl时,W油田总潜力为426.5×10~4t。同时,建议将水平井蒸汽驱潜力作为技术攻关潜力进行评价。In order to evaluate the potential of different thermal-recovery technologies for heavy oil in SINOPEC,two EOR technologies,cyclic steam stimulation with infill wells and steam flooding,were studied.The methods of financial net present value,reservoir numerical simulation and cost analysis were used to draw the charts of single-well oil economic limit production of the cyclic steam stimulation and economic limit of oil-steam ratio for the steam flooding.And then the evaluation standards of the potential of cyclic steam stimulation with infill wells aimed at two kinds of buried depths and two kinds of well types were set up and the evaluation standards of the potential of steam flooding was revised.Finally,the potential was evaluated by taking W Oilfield of SINOPEC as an example.The results show that at a certain burial depth,single-well oil economic limit production of the cyclic steam stimulation increases exponentially as the oil price decreases for the vertical and the horizontal well.At the oil price of US$60/bbl,the economic limit of oil-steam ratio for the steam flooding in the heavy oil reservoirs of SINOPEC is0.096t/t.The cyclic steam stimulation with infill wells and the steam flooding directly after cyclic steam stimulation can increase32.4×104and71.1×104tons of recoverable reserves respectively,and the total potential of W Oilfield is103.5×104t.At the oil price of US$80/bbl,the total potential is426.5×104t for the W Oilfield.At the same time,it is suggested that the potential of steam flooding for the horizontal well should be evaluated as the potential of technological breakthrough.

关 键 词：潜力评价 稠油热采 蒸汽吞吐加密 蒸汽驱 评价标准 

分 类 号：TE345[石油与天然气工程—油气田开发工程]