首页|期刊简介|投稿指南|分类索引|刊文选读|订阅指南|资料|样刊邮寄查询|常见问题解答|联系我们
王英英,薛林福. 油页岩原位开采中裂隙与井组相对位置及其产状对加热效果的影响[J]. 科学技术与工程, 2019, 19(35): 141-147.
Wang Ying-ying.Impact of Fracture Occurrence and Relative Position on the Heating Effect in Oil Shale In-situ Mining[J].Science Technology and Engineering,2019,19(35):141-147.
油页岩原位开采中裂隙与井组相对位置及其产状对加热效果的影响
Impact of Fracture Occurrence and Relative Position on the Heating Effect in Oil Shale In-situ Mining
投稿时间:2019-05-07  修订日期:2019-09-24
DOI:
中文关键词:  油页岩原位开采 裂隙产状 相对位置 加热效果 数值模拟
英文关键词:Oil shale in situ mining  fracture occurrence  relative position  heating effect  numerical simulation
基金项目:吉林省重大科技攻关项目(20170201001SF);吉林省教育厅“十三五”科学技术项目(JJKH20180161KJ)联合资助
     
作者单位
王英英 吉林大学地球科学学院
薛林福 吉林大学地球科学学院
摘要点击次数: 228
全文下载次数: 74
中文摘要:
      当采用对流加热技术对地下油页岩进行加热时,油页岩层中因地应力所形成的自然裂隙与由水力压裂形成的人工裂隙共同构成了流体的运移通道。裂隙可为热流体提供通道,增大或者减小油页岩的加热范围;也可通过改变热流体的流动速度,影响油页岩的加热速度。因此充分地认识地下裂隙对油页岩加热效果的影响,确定合理的布井方式对油页岩的开采十分重要。通过使用商业仿真模拟软件ANSYS,简化复杂的地下裂隙问题建立三维模型,对向地下注热流体加热油页岩这一过程进行数值模拟。以此来模拟油页岩原位注热开采中的温度场,探究并分析不同裂隙位置与产状条件下油页岩的加热效果。模拟结果表明,加热5年后即可达到稳态,加热井远离开放裂隙,生产井位于加热井与开放裂隙之间时油页岩加热效果更好。井组连线的走向垂直于裂隙走向时,加热效果更好;开放裂隙垂直于岩层时,加热效果更好。
英文摘要:
      When convective heating technology is used to heat underground oil shale, the natural fissure formed by the ground stress in the oil shale layer and the artificial fissure formed by hydraulic fracturing together constitute the fluid migration channel. The fissure can provide a passage for the hot fluid to increase or decrease the heating range of the oil shale; it can also affect the heating rate of the oil shale by changing the flow velocity of the hot fluid. Therefore, it is very important to fully understand the influence of underground fissures on the heating effect of oil shale and determine the reasonable well placement method for oil shale mining. By using the commercial simulation software ANSYS, the complex underground crack problem is simplified to establish a three-dimensional model, and the process of heating the oil shale with heat fluid injection is numerically simulated. By simulating the temperature field of oil shale in-situ hydrothermal mining, the heating effect of oil shale under different fracture locations and occurrence is explored and analyzed. The simulation results show that the steady state can be reached after heating for 5 years. when the heating well is far away from the open crack, and the production well is located between the heating well and the open crack, the oil shale heating effect is better . When the direction of the well group connection is perpendicular to the fracture direction, the heating effect is better; when the open fracture is perpendicular to the rock formation, the heating effect is the better .
查看全文  查看/发表评论  下载PDF阅读器
关闭
你是第28679362位访问者
版权所有:科学技术与工程编辑部
主管:中国科学技术协会    主办:中国技术经济学会
Tel:(010)62118920 E-mail:stae@vip.163.com
京ICP备05035734号-4
技术支持:本系统由北京勤云科技发展有限公司设计

京公网安备 11010802029091号