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

A closed-cycle hydraulic drainage test process system

A process system and closed-cycle technology, which is applied in the field of closed-cycle hydraulic drainage test process system, can solve problems such as limited adjustment range of pressure and displacement, difficult working parameters of surface pumps, and difficult prediction of formation liquid supply capacity, etc., to achieve Stratum liquid production is intuitive, easy to adjust, and the effect of accurate output

Active Publication Date: 2021-03-02
CNPC BOHAI DRILLING ENG +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One is the water injection pump driven by a motor, the adjustment range of its pressure and displacement is limited, and the liquid supply capacity of the formation is difficult to predict, so it is difficult for the working parameters of the ground pump to match the liquid supply capacity of the formation
[0004] The second is that the surface injection system not only needs to drive the downhole pump to drain liquid, but also quickly perform reverse pressure to realize downhole shut-in. The current surface injection system does not have this function

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 closed-cycle hydraulic drainage test process system
  • A closed-cycle hydraulic drainage test process system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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 closed-cycle hydraulic drainage test process system, which includes a downhole pump unit and a pneumatic water injection pump. The downhole pump unit is respectively connected with a formation fluid storage tank and a power fluid storage tank. The water pump is connected to provide power fluid for the pneumatic water injection pump. The pneumatic water injection pump is connected to the downhole pump unit to provide power fluid for the downhole pump unit. The downhole pump unit is used to separate the formation fluid and power fluid and output them to the corresponding formation fluid storage tank and power fluid reservoir. The surface pump of the present invention adopts a pneumatic water injection pump, the pressure and displacement can be adjusted arbitrarily, and the working parameters of the surface pump can be adjusted at any time according to the liquid production situation of the formation during liquid discharge, so as to adapt to the liquid supply capacity of the formation and improve the working efficiency of the pump discharge .

Description

technical field [0001] The invention belongs to the field of oil and gas well testing, in particular to a closed-circulation hydraulic drainage testing process system. Background technique [0002] At present, in the field of oil and gas well testing and testing technology, jet pump drainage and screw pump drainage are often used for formation drainage. In order to realize the closed-cycle hydraulic drainage testing process, the previous ground injection system mainly has the following two aspects. question: [0003] One is that the water injection pump driven by a motor has a limited adjustment range of pressure and displacement, and the liquid supply capacity of the formation is difficult to predict, so it is difficult for the working parameters of the surface pump to match the liquid supply capacity of the formation. [0004] Second, the surface injection system must not only drive the downhole pump to discharge liquid, but also quickly perform reverse pressure to realiz...

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): E21B43/20E21B43/24
CPCE21B43/20E21B43/24
Inventor 雷鹏杜成良张士川任永宏方正张际兵雷明赵雪峰贾建军
Owner CNPC BOHAI DRILLING ENG
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