Unlock instant, AI-driven research and patent intelligence for your innovation.

Enriched multi-point flux approximation

A flow and vertex technology, applied in the modeling field of hydrocarbon reservoirs, can solve problems such as MPFA usage restrictions

Inactive Publication Date: 2014-06-18
EXXONMOBIL UPSTREAM RES CO
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In any case the possibility of these oscillations can severely limit the use of MPFA in a variety of applications

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Enriched multi-point flux approximation
  • Enriched multi-point flux approximation
  • Enriched multi-point flux approximation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Detailed description of the preferred embodiment

[0037] Embodiments of the invention generally provide methods, devices and systems that can be used to reduce or eliminate numerical oscillations in solutions that occur when using conventional MPFAs. The present technique may be referred to as Enhanced Multipoint Flow Approximation (EMPFA).

[0038] The EMPFA described herein can be used in various applications such as modeling common Single or multiphase flow. EMPFA can be used to model energy transfer flows. Furthermore EMPFA can be applied to Cartesian, Voronoi or even arbitrary meshes. In a particular embodiment, EMPFA can be used to improve the consistency and accuracy of constructing pressure interpolations within grid cells for determining flow equations for predicting flow within a reservoir.

[0039] As described above, with the traditional MPFA approach, based on linear interpolation of the pressure at the center of the block and the centers of two adjace...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Methods and systems to reduce or eliminate numerical oscillations in solutions that occur when using conventional MPFA when modeling flow in a reservoir are provided. The technique may be referred to as enriched multi-point flux approximation (EMPFA) and may be used to improve the consistency and accuracy in constructing pressure interpolations in cells for the purpose of determining flux equations used in predicting flow in a reservoir.

Description

[0001] This application claims the benefit of US Provisional Application No. 60 / 837,499, filed August 14, 2006. technical field [0002] The present invention relates generally to modeling of hydrocarbon reservoirs, and in particular to providing a more consistent and accurate representation of fluid flow and pressure gradients. Background technique [0003] Locating oil deposits, drilling wells, and managing the extraction of oil from deposits is accomplished at significant expense. Due to the complex and rigorous nature of locating and managing hydrocarbon deposits, new professions have developed and specialized techniques have been developed to reduce uncertainty, lower costs and optimize production. Petroleum engineers, production engineers, geographers and geologists now use computerized models of the Earth's crust to plan extraction and manage production from petroleum reservoirs. [0004] Reservoir conditions are not static, and gases and liquids within a reservoir c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06G7/48
CPCG06F2217/16E21B43/00G06F17/5018E21B49/00G06F30/23G06F2111/10
Inventor 陈千勇R·T·米夫林J·万杨亚汉
Owner EXXONMOBIL UPSTREAM RES CO