A Completion Method of Volumetric Fracturing for Horizontal Wells in Unconventional Reservoirs
A volume fracturing and horizontal well technology, applied in wellbore/well components, production fluid, earthwork drilling and production, etc., can solve the problem of insufficient consideration of reservoir heterogeneity, perforation and productivity matching three-dimensional stress, geological Reserves have not been effectively produced, and there are large differences in fluid flow into pores between clusters, etc., to achieve the effects of increasing the fracture control area, shortening the interval between clusters, and reducing the driving pressure difference
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0118] Example 1: Reduced section, cluster spacing + nano-fracturing fluid for oil wells + high-strength sanding of quartz sand throughout the process
[0119] Fuyu tight oil in Songliao Basin-shortening section and cluster spacing, increasing interference between fractures and forming complex fractures;
[0120] Fuyu tight oil area in Songliao Basin: 10,000km 2
[0121] Burial depth of oil layer: 1850~2600m
[0122] Reservoir thickness: 2~10m (the thickest is 40m)
[0123] Single well production: 0.5~3t / d, up to 20t / d
[0124] Physical properties: porosity 6% ~ 10%, permeability 0.01 ~ 1mD
[0125] Properties of crude oil: Density 0.8~0.86g / cm 3 , Viscosity: 3~15mPa·s
[0126] Formation pressure coefficient: 0.97~1.06
[0127] Excellent source-reservoir configuration relationship is the key to the formation of Fuyu tight oil
[0128] The Fuyu oil layer is upper-generation and lower-reservoir: the source-reservoir is close to the
[0129] Hydrocarbon source rock: Huxi...
example 2
[0134] Example 2: Subdivided small layers + fine segmented hole layout + targeted fracturing technology
[0135] JY52-6HF-subdivided small layer, fine segmented hole layout, one section one strategy
[0136] Table 7 shows JY52-6HF-subdivided sub-layers and fine segmented hole layout data. It can be seen from Table 7 that the structure is complex, the buried depth increases (2883-3861m), and the span of the traversed horizon is relatively large (①-⑨ layers, streams grass ditch).
[0137] Table 7 JY52-6HF-subdivision sublayer, fine segment hole layout data
[0138] Hashtag structure walk through layers vertical depth(m) Horizontal section length (m) number of segments 5HF Wujiang Broken Nose ①-⑨turbidity sand 3105-3200 1100.38 17 6HF White Horse Syncline ④-⑧ 3397-3647 1056 17 8HF Pingqiao Broken Anticline ③ 2883-3011 1585.55 22 69-2HF Diaoshuiyan syncline ①~⑦ Jiancaogou 3502-3722 1574 24 81-2HF Jiaoshiba a...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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