Fracturing method for shale reservoir microfracture self-supporting
A technology for shale reservoirs and micro-fractures, which is used in earth-moving drilling, production of fluids, wellbore/well components, etc., can solve the problems of unsolved implementation process or operation method, etc., and achieve high fracture conductivity and stability. Good results
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0073] Well J is a marine shale gas horizontal well. The target layer of this well is the Lower Silurian Longmaxi Formation-Upper Ordovician Wufeng Formation, and the middle vertical depth of the target layer is 3810m. The average quartz content of the well target layer is 51.8%, the average carbonate content is 6.8%, the shale is 23.1%, the average Poisson’s ratio is 0.21, the Young’s modulus is 46.6GPa, the brittleness index is 67%, and the two-way horizontal stress difference coefficient is 0.165 , compressibility index 0.55. The imaging logging shows that the horizontal bedding of the target layer is developed, and there are high conductivity fractures and high resistance fractures in some intervals. From the perspective of engineering geological parameters, the target layer of this well has high brittleness index, small difference in horizontal stress, and natural fractures in some intervals, which are very conducive to the development of fracture network fracturing. How...
Embodiment 2
[0091] Well H is a marine deep shale gas horizontal well. The target layer of this well is the Lower Silurian Longmaxi Formation-Upper Ordovician Wufeng Formation, and the vertical depth in the middle of the target layer is 4095m. The average content of quartz in the target layer of this well is 41.1%, the average carbonate content is 14.4%, the shale is 26.4%, the closing pressure is 97MPa, the average Poisson’s ratio is 0.22, the Young’s modulus is 43GPa, the brittleness index is 65%, and the two-way horizontal stress difference The coefficient is 0.21, the two-way horizontal stress difference is 19-22.2MPa, and the compressibility index is 0.55. Imaging logging shows that the high-angle fractures in the target layer are generally well developed, mostly half-filled or filled by calcite and pyrite, and horizontal bedding fractures are well developed. From the perspective of engineering geological parameters, the target layer of this well has a high brittleness index and natur...
PUM
Property | Measurement | Unit |
---|---|---|
Viscosity | aaaaa | aaaaa |
Viscosity | aaaaa | aaaaa |
Viscosity | aaaaa | aaaaa |
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