Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A New Method for Increasing Production and Injection

A technology of injecting water and formation pressure, applied in chemical instruments and methods, earth-moving drilling, wellbore/well components, etc. It can solve the dead angle of oil supply, cannot solve the problem of large-area oil supply in the bottom hole radius, and the crude oil cannot flow to the Bottom hole and other problems, to achieve the effect of increasing the oil supply radius, increasing the producing reserves, and increasing the recovery factor

Active Publication Date: 2022-05-27
新疆赢华石油技术服务有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a new method of increasing production and injection, which solves the problem that the fracturing process in the prior art can only produce high-permeability oil supply channels in a certain direction, but cannot solve the problem of large-area oil supply with a bottom hole radius. The technical problem that the oil supply dead angle is formed, so that the crude oil in the low porosity cannot flow to the bottom of the well

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 New Method for Increasing Production and Injection
  • A New Method for Increasing Production and Injection
  • A New Method for Increasing Production and Injection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 A schematic flowchart of a new method for increasing production and injection in the embodiment of the present invention, such as figure 1 As shown, the method includes:

[0025] Step 110: inject water into the formation using the ground pump set equipment, record the formation pressure and observe its changes;

[0026] Further, the use of ground pump unit equipment to inject water into the formation, recording formation pressure and observing its changes, includes: when injecting water into the formation, the flow rate of the injected water needs to be continuously increased, so that the formation pressure can be continuously increased.

[0027] Specifically, compared with the fracturing process, in the embodiment of the present application, under the condition of small displacement and low relative pressure, the formation is pressurized, sand-filled, volume-expanded, and fracture-increased, so as to expand the water absorption radius and the oil supply radiu...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The application discloses a new method for increasing production and increasing injection. The method includes: injecting water into the formation using surface pump equipment, recording formation pressure and observing its change; obtaining a pressure threshold, wherein the value range of the pressure threshold is greater than 0 and less than the formation fracture pressure; judge whether the formation pressure is within the pressure threshold range; if the formation pressure is within the pressure threshold range, adjust the water displacement of the pump so that the formation pressure is stable and does not Greater than or equal to the pressure threshold; after the formation pressure stabilizes, start injecting gas into the cavitation generator installed on the ground until the formation pressure begins to drop; at the same time, fill the formation with quartz sand and stop the pump. Utilizing the principle of cavitation, the technical effects of expanding and connecting the capillaries, small pores and micro-cracks of formation rocks, greatly increasing the oil supply radius, increasing the producing reserves, and finally improving the recovery of oil wells are achieved.

Description

technical field [0001] The present application relates to the technical field of oil field stimulation, in particular to a new method for increasing production and injection. Background technique [0002] Fracturing is an important technical measure for oil and gas well stimulation and water injection well stimulation. It is not only widely used in low-permeability oil and gas reservoirs, but also has achieved good results in the stimulation and stimulation of medium and high-permeability oil and gas reservoirs. It uses the high-pressure pump group on the ground to inject high-viscosity liquid into the well at a displacement that greatly exceeds the absorption capacity of the formation, and builds up high pressure at the bottom of the well. When the pressure is greater than the formation fracture pressure, the formation has relatively high penetration capacity in the direction of large pores. , so that the formation rocks are broken and extended for a certain length. The ne...

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): E21B43/26E21B43/267E21B49/00B01F23/20B01F27/722
CPCE21B43/26E21B43/267E21B49/008B01F23/235B01F25/31112B01F2101/48
Inventor 杜智超李成成杜宝华
Owner 新疆赢华石油技术服务有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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