【摘 要】
:
According to the influence of internal agency, the boundary of actual reservoir is complex.In this article, using the fluid flow through porous media theory, we establish the mathematic model of horiz
【机 构】
:
Chongqing Science and Technology University ,Chongqing 401331, China
【出 处】
:
2011全国特殊气藏开发技术研讨会
论文部分内容阅读
According to the influence of internal agency, the boundary of actual reservoir is complex.In this article, using the fluid flow through porous media theory, we establish the mathematic model of horizontal well in complex boundary reservoir.On the base of Lord Kelvin point-source solution, the integral of Bessel function, Poisson superimpose formula and boundary element method, we resolve it and obtain the boundary element basic solution.We establish the pressure response model of horizontal well in complex boundary reservoir.Obtain the dimensionless pressure and pressure derivate double log type curve by calculating the pressure response function.And analysis the character of fluid flow through porous media and its influence effect.
其他文献
To make clear the factors influence China coal mine safety production, the multiple regression model of the death rate per million tons coal show that level of mechanical coal mining and investment in
In the drilling operation, It is easy to develop scrapped of boreholes、 cluster die and cluster wound and other serious catastrophic accidents if there is out of control of blowout.Based on Fault Tree
Safety input is a safeguarding force to mining, as well as one of main reasons for the increased growth rates of Total Factor Productivity (TFP).To figure out the contribution of the safety input to m
To solve the single tube gathering process paraffin oil viscosity reduction shaft and gathering the problem of high back pressure.Technical application of crude oil pour point depressant, mixed ester,
The cementing quality is directly related to the normal operation of the gas well, therefore, the evaluation of cementing quality is key to the correctly use the gas well as well as to take measures t
针对压力复杂条件下的井身结构设计困难的问题,本文基于可靠性理论提出了一种新的方法.在对地层压力的概率密度分析的基础上,建立了井身结构可靠度模型,并按照可靠度最大的原则,提出了套管下深的计算方法和基于模拟退火法的求解算法.实例分析证明了本方法的合理性和科学性.研究结果表明,该方法实用性好,与传统的井身结构设计方法相比,可以在一定程度上提高设计的可靠性.
气体钻水平井能最大限度地暴露并保护储层,同时也是防漏治漏的良好手段,而它的工程难点在于并眼净化,即安全携岩.由于气体钻水平井中岩屑受力状态与直井有很大不同,特别是遇到井径扩大,更是携岩的关键点.因此,在分析了气体钻水平井岩屑运移特点以及建立环空连续性方程和动能方程的基础上,以实际井为例考虑了不同井径扩大率,数值模拟了其扩径段气固两相流动状态,包括:气固速度、岩屑浓度、压力分布等.经过数据分析得到规
探讨了我国液化天然气作钻井燃料钻井(下文简称"LNG钻井")安全生产的现状,根据"LNG钻井"现场施工实例情况,提出了现阶段"LNG钻井"安全生产存在的问题,并提出了对"LNG钻井"安全生产的展望.通过本文对"LNG钻井"安全生产现状的分析,希望能给钻井现场作业人员以及燃气动力设备科研人员有所帮助,以期能对"LNG钻井"的推广起到积极的促进作用.
利93断块是一个有力的生油凹陷,但该区块地质情况复杂,存在着诸多施工难题,本公司通过对利93断块所钻井的研究,在总结以往钻井经验的基础上,认真消化和吸收国内同行业的先进钻探技术,结合的利93断地质特点,展开技术攻关,经过近两年不断的摸索与实践,总结出了一套适应该区块安全快速钻进的实用技术,提高了该区块的钻井速度与钻井质量,取得了良好的社会效益与经济效益.
气体钻井过程中井筒循环气体与地层之间持续不断地发生着热量传递,井筒温度随钻进时间和钻井参数等的变化而改变,井眼循环温度是气体钻井工艺设计的基础.通过深入研究井筒流动和热量传递规律,建立井筒温度预测数学模型,并对模型进行数值求解.实例计算表明:钻杆和环空内的温度均呈非线性分布,钻杆内温度低于环空内温度,环空温度随着注气量的增大而降低.