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

Determination method of perforation plan for large-stage multi-cluster fracturing

A determination method and fracturing technology, which can be used in earth-moving drilling, wellbore/well components, design optimization/simulation, etc., and can solve the problem that the perforation distribution scheme cannot satisfy the simultaneous and uniform expansion of large-scale multi-cluster fractures.

Active Publication Date: 2022-07-05
PETROCHINA CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a method for determining the perforation scheme of multi-cluster fracturing in large sections, so as to solve the problem that the perforation distribution scheme in the multi-cluster fracturing process of horizontal wells in the prior art cannot be satisfied with multi-cluster in large sections The Problem of Simultaneous Uniform Growth of Cracks

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
  • Determination method of perforation plan for large-stage multi-cluster fracturing
  • Determination method of perforation plan for large-stage multi-cluster fracturing
  • Determination method of perforation plan for large-stage multi-cluster fracturing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0026] In the present invention, unless otherwise stated, the directional words used such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the components themselves in vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" refers to the inner and outer relative to the contour of each component itself, but 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 for determining a perforation plan for large-stage multi-cluster fracturing. The method for determining the perforation plan for large-stage multi-cluster fracturing includes: step S1: establishing a fracturing section model; step S2: determining the liquid distribution and fracture shape of the fracturing section model; step S3: determining the proppant size of the fracturing section model Distribution amount; Step S4: Determine the perforation blasthole erosion efficiency, blasthole diameter after erosion and flow coefficient of the fracturing section; Step S5: Determine the perforation plan of the final fracturing section. The invention solves the problem that the perforation distribution scheme in the horizontal well staged multi-cluster fracturing process in the prior art cannot satisfy the simultaneous uniform expansion of large-stage multi-cluster fractures.

Description

technical field [0001] The invention relates to the field of oil exploitation, in particular to a method for determining a perforation plan for large-stage multi-cluster fracturing. Background technique [0002] Horizontal well staged multi-cluster fracturing technology is one of the main technologies for the development of unconventional oil and gas reservoirs. Through multi-cluster fracturing in the stage, the simultaneous expansion of multiple hydraulic fractures can be achieved, and high-conductivity fracture channels can be realized in unconventional reservoirs. , increase the seepage capacity of the reservoir, and realize the stimulation and transformation of unconventional oil and gas reservoirs. Generally, the staged fracturing technology adopts bridge plug perforation fracturing as the main reformation process. At present, the scale of domestic oilfield reformation is generally 70-80 meters in interval between sections and 30-45 meters in cluster interval. The leng...

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): E21B43/114E21B43/26E21B43/267G06F30/20
CPCE21B43/114E21B43/26E21B43/267
Inventor 郭长永纪拥军石善志陈仙江黄波郁洁唐歌熊启勇孙凯李明辉梁天博赵海燕
Owner PETROCHINA CO LTD