Method for improving recovery rate of thick massive viscous oil reservoir by controlling burning gas injection speed
A heavy oil reservoir and recovery technology, which is applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., can solve problems such as low economic benefits, flameout, failure, etc., achieve safe and effective fire operation, and improve fire performance. The effect of sweeping volume and optimized design
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0095] Oilfield 1 is a monocline oil reservoir bounded by faults on three sides. It has the typical characteristics of deep burial, simple structure, extremely thick oil layers, and no internal barriers and interlayers. The buried depth of the oil layer is 1460-1600m, the thickness of the oil layer is 145m, the remaining oil saturation is 0.45, the porosity is 21.6%, the permeability is 860md, and the viscosity of degassed crude oil under formation conditions is 4500mPa.s; in the early stage, the development was mainly based on throughput, and the current formation pressure is low , only 2-3MPa, large underground water storage, only 30% water recovery rate, the highest remaining oil saturation between wells is 61%.
[0096] (1) Carry out rough screening according to the geological characteristics and development status of the oilfield. The reservoir meets the following conditions: oil layer thickness > 30m, single layer thickness greater than 10m accounts for 70% of the total...
Embodiment 2
[0103] Oilfield 2 is a monocline oil reservoir bounded by faults on three sides. It has the typical characteristics of deep burial, simple structure, extremely thick oil layers, and no internal barriers and interlayers. The buried depth of the oil layer is 1460-1600m, the thickness of the oil layer is 76.5m, the remaining oil saturation is 0.43, the porosity is 24.2%, the permeability is 1530md, and the viscosity of degassed crude oil under formation conditions is 2320mPa.s; Low, only 1 ~ 2MPa, large underground water storage, water recovery rate is only 28%, the highest remaining oil saturation between wells is 59.3%.
[0104] (1) Carry out rough screening according to the geological characteristics and development status of the oilfield. The reservoir meets the following conditions: oil layer thickness > 30m, single layer thickness greater than 10m accounts for 70% of the total thickness, remaining oil saturation > 0.45, porosity > 0.18, permeability > 200md, degassed crude...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com