首页> 外文OA文献 >An integrated simulation model for sand production prediction and sand control
【2h】

An integrated simulation model for sand production prediction and sand control

机译:砂产量预测和防砂的集成仿真模型

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The paper decribes the development of a computer package that can be used to predict sand production and select the optimum sand control. This package consists of two major parts. The first is simulation of perforation stability and onset of sand production. This is a coupled mechanical and fluid flow model. The main objectives of this model are predicting the onset of sand production, study the effect of perforation patternm, perforation density, phasing angle and 2-phase fluid (oil and water) production on the perforation cavity stability. The finite element method is used to develop this model. Among the assumptions made were that the reservoir rock surrounding the perforation cavity is assumed isothermal with its pores completely filled with fluid. The oil and water either in perforation cavity or in pores are considered totally immiscible. The deformation condition is considered nonlinear. The perforation boundary that is in contact with cement is assumed to be under no flow and displacement condition. In the events that sand production cannot be avoided, gravel packing is normally carried out to prevent the sand from entering the wellbore. This causes decline in well productivity, which is characterized by the additional pressure drop across the well. The productivity impairment is often aggravated by high-velocity flow. A finite-difference model is developed to evaluate the productivity of gravel-packed wells. This is the second part of the computer package and it represents an improved approach to the study of production impairment due to gravel-packing compared to the current practice of using the skin concept. In this work, the perforations are treated as cylinders and the annulus between the perforation and screen is filled with gravel.
机译:本文介绍了一种计算机软件包的开发,该软件包可用于预测出砂量并选择最佳的出砂控制。该软件包包括两个主要部分。首先是射孔稳定性和出砂开始的模拟。这是一个耦合的机械和流体流动模型。该模型的主要目的是预测出砂的开始,研究射孔方式,射孔密度,相位角和两相流体(油和水)的产生对射孔腔稳定性的影响。使用有限元方法来开发该模型。在作出的假设中,假设围绕射孔腔的储层岩石是等温的,其孔隙完全充满了流体。射孔腔或孔中的油和水被认为是完全不混溶的。变形条件被认为是非线性的。假定与水泥接触的射孔边界处于无流动和无位移的条件下。在无法避免出砂的情况下,通常会进行砾石充填,以防止沙子进入井眼。这导致油井生产率下降,其特征在于油井上的额外压力下降。高速流动常常加剧生产率的下降。建立了一个有限差分模型来评估砾石充填井的生产率。这是计算机程序包的第二部分,与当前使用皮肤概念的实践相比,它代表了一种研究方法,用于研究由于砾石堆积而造成的生产损失。在这项工作中,孔眼被视为圆柱体,孔眼和筛子之间的环空被砾石填充。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号