Method and device for determining borehole orientation of fractured reservoir horizontal well

A horizontal well and azimuth technology, applied in wellbore/well components, earthwork drilling, production fluid, etc., can solve problems such as not maximizing production capacity

Active Publication Date: 2019-07-16
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method and device for determining the borehole azimuth of a horizontal well in a fractured reservoir, which can solve the problem that the production capacity of the borehole azimuth output of a horizontal well determined in the prior art may not be the biggest problem

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
  • Method and device for determining borehole orientation of fractured reservoir horizontal well
  • Method and device for determining borehole orientation of fractured reservoir horizontal well
  • Method and device for determining borehole orientation of fractured reservoir horizontal well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0091] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, but not necessarily Describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances. In addition, the terms "including" and "having" and any variations of the...

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 and device for determining the borehole orientation of a fractured reservoir horizontal well, and the method comprises the steps: obtaining the occurrence characteristics of a natural fracture in a fractured reservoir according to the logging information of the fractured reservoir; establishing a fracture-bed rock dual-seepage model according to a rock sample, wherein the rock sample is taken from the rock core of the fractured reservoir, and the fracture-bed rock double-seepage model is used for representing the relation between the borehole orientation and thecapacity; obtaining capacity corresponding to N different borehole orientations according to the occurrence characteristics of the natural fracture in the fractured reservoir and the fracture-bed rock double-seepage model, wherein N is an integer larger than or equal to 2; and determining the target borehole orientation according to the capacity corresponding to the N different borehole orientations. According to the method and device for determining the borehole orientation of the fractured reservoir horizontal well, the problem that the output capacity of the borehole orientation of the horizontal well determined in the prior art is possibly not maximum can be solved.

Description

Technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a method and device for determining the borehole orientation of a horizontal well in fractured reservoirs. Background technique [0002] At present, there are oil and gas-bearing regions all over the world. Take China's Tarim Basin as an example. The Tarim Basin is a typical petroliferous basin with huge exploration and development potential. In the main oil and gas production areas of the Tarim Basin, the reservoirs are mainly low-permeability fractured sandstone reservoirs, and the reservoirs are generally developed by means of horizontal wells. However, due to the different development of fractures in the reservoir, horizontal wells usually output different oil and gas productivity under different borehole orientations. Therefore, it is particularly important to determine the borehole orientation of horizontal wells. [0003] In the prior art, one way to determine t...

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): E21B43/26E21B49/00
CPCE21B43/26E21B49/00
Inventor 杨沛杨成新卢运虎梁红军
Owner PETROCHINA CO LTD
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