Check patentability & draft patents in minutes with Patsnap Eureka AI!

A Method for Determining the Floor Limit of Oil and Gas Accumulation in Sedimentary Basins

A technology for oil and gas accumulation and basins, which is applied in the field of deep oil and gas accumulation in sedimentary basins, achieving the effect of wide applicability

Active Publication Date: 2016-12-28
CHINA UNIV OF PETROLEUM (BEIJING)
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, few scholars have systematically proposed the bottom limit of oil and gas accumulation in sedimentary basins and the lower limit of deep oil and gas exploration, as well as the calculation method, application model and change law of the bottom limit of oil and gas accumulation in sedimentary basins.

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
  • A Method for Determining the Floor Limit of Oil and Gas Accumulation in Sedimentary Basins
  • A Method for Determining the Floor Limit of Oil and Gas Accumulation in Sedimentary Basins
  • A Method for Determining the Floor Limit of Oil and Gas Accumulation in Sedimentary Basins

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to deeply understand the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Principle of the present invention refers to Figure 1 ~ Figure 2 , according to the composition of reservoir fluid, it can be divided into bound water, free water and hydrocarbon fluid, and the latter two are collectively called free fluid. When sediments are deposited, they are unconsolidated particles. Due to the adsorption of particles, the surface of rock particles will be covered with a layer of water film that cannot move freely, which is called bound water. Irreduced water is usually water that cannot move freely in formation pores. With the deepening of the sediment burial depth, under the action of compaction, the contact between the sediment particles gradually becomes tighter, and the surface area of ​​the rock particles per unit volume increases, resulting in a slow inc...

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

The invention provides a method of determining a sedimentary basin oil and gas accumulation threshold, and relates to the field of sedimentary basin deep layer oil and gas accumulation. The method mainly comprises steps of collecting data of the sedimentary basin porosity and corresponding irreducible water saturation, using the porosity data and the irreducible water saturation data to build a mathematical model about the two, calculating the irreducible water saturation of the sedimentary basin according to the built mathematical model and the large amount of porosity data, determining the trend of the irreducible water saturation of the sedimentary basin along the depth change and building a mathematical model of average irreducible water saturation, determining the sedimentary basin oil and gas accumulation threshold according to the mathematical model built in the above step, using a step-by-step method in SPSS software to analyze parameters influencing total reservoir pore space and irreducible pore space evolution and building a mathematical model for quantitatively reflecting total reservoir pore space and irreducible pore space change, and in combination with actually-measured total porosity data and the mathematical models of the total pore space and irreducible pore space to build the sedimentary basin oil and gas accumulation threshold under the effect of different parameters.

Description

technical field [0001] The invention relates to the field of deep oil and gas accumulation in sedimentary basins, and specifically relates to establishing mathematical models by using porosity and irreducible water saturation, as well as irreducible water saturation and corresponding burial depth, to determine the bottom limit of oil and gas accumulation in sedimentary basins, and to determine the effects of different parameters A method for lowering the bottom limit of oil and gas accumulation. Background technique [0002] With the continuous improvement of the exploration degree of oil and gas resources in the middle and shallow layers of sedimentary basins, the potential of oil and gas resources in deep layers has attracted people's attention. Scholars and petroleum workers at home and abroad have proved the existence of deep oil and gas from different angles. [0003] Price (1993) proved through experiments that "C15+ heavy hydrocarbons are still stable when Ro is much...

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): G01V9/00
Inventor 庞雄奇王鹏威姜福杰陈筱郭迎春马中振
Owner CHINA UNIV OF PETROLEUM (BEIJING)
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com