Tight oil reservoir horizontal well staged fracturing fracture parameter design method

A technology for staged fracturing and tight oil reservoirs, applied in computer-aided design, design optimization/simulation, calculation, etc., can solve the lack of universality, high application difficulty and low fracturing design efficiency of blocks and even similar oil reservoirs And other issues

Active Publication Date: 2020-10-23
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the existing staged fracturing fracture parameter design methods are optimized for specific horizontal wells to be fractured, lacking the universality of blocks or even

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
  • Tight oil reservoir horizontal well staged fracturing fracture parameter design method
  • Tight oil reservoir horizontal well staged fracturing fracture parameter design method
  • Tight oil reservoir horizontal well staged fracturing fracture parameter design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment discloses a method for designing fracture parameters for staged fracturing of horizontal wells in tight oil reservoirs, including:

[0043]S100. Obtain geological development data of the tight oil reservoir, and establish a numerical simulation model for staged fracturing horizontal well development based on the geological development data of the tight oil reservoir.

[0044] Specifically, geological development data include reservoir structure parameters, reservoir physical properties parameters and fluid physical properties parameters of the target block; structural parameters include top structure, burial depth, interlayer and fault distribution data; reservoir physical property parameters include formation pressure, formation temperature , sand body thickness, effective thickness, permeability, porosity, oil saturation distribution data and rock compressibility coefficient; fluid physical parameters include crude oil viscosity, crude oil density, crud...

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

A tight oil reservoir horizontal well staged fracturing fracture parameter design method comprises the steps: acquiring tight oil reservoir geological development data, and establishing a staged fracturing horizontal well development numerical simulation model through the tight oil reservoir geological development data; changing the parameter combination value of the crack spacing and the crack flow conductivity in the horizontal well development numerical simulation model, and calculating the effective production time and the effective cumulative oil yield under the current parameter combination value; establishing a relation curve between the daily average oil production capacity of the tight oil reservoir staged fracturing horizontal well and a fracturing production increasing potentialfactor; and according to the daily average oil production capacity design value of the tight oil reservoir staged fracturing horizontal well, determining the fracture interval and fracture flow conductivity parameter combination value of the staged fracturing horizontal well. According to the tight oil reservoir horizontal well staged fracturing fracture parameter design method, the fracture spacing and fracture flow conductivity combined scheme matched with the daily average oil production capacity design value of the tight oil reservoir staged fracturing horizontal well can be rapidly and accurately determined, and the tight oil reservoir horizontal well staged fracturing fracture parameter design method is beneficial to improving the staged fracturing design efficiency of the tight oilreservoir horizontal well.

Description

technical field [0001] The invention relates to the technical field of oil and gas field development, in particular to a method for designing fracture parameters of staged fracturing of horizontal wells in tight oil reservoirs. Background technique [0002] my country is rich in tight oil reservoir resources, which are widely distributed in the Songliao, Ordos, and Sichuan Basins. It is generally believed that the most effective way to develop tight oil is multi-stage fracturing stimulation of horizontal wells, and to ensure the effect of fracturing stimulation, it is necessary to provide a complete fracturing construction design plan before on-site construction. Among many design parameters, the selection of fracture spacing and fracture conductivity has an important impact on the stimulation effect of horizontal well staged fracturing design and post-fracture production efficiency. [0003] In the prior art, the invention patent with the application number 201410168072.7 ...

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
IPC IPC(8): G06F30/20G06F30/28E21B43/26G06F111/10G06F119/14G06F113/08
CPCE21B43/26G06F30/20G06F30/28G06F2111/10G06F2113/08G06F2119/14
Inventor 张先敏冯其红任佳伟张纪远谢泽豪
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap