Document on basics and fundamentals of Hydraulic fracturing
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HyFractFull description
Research essay about the pros and cons of hydraulic fracturing. This essay discusses the positives and the consequences of the use of hydraulic fracturing to make oil wells more productive. …Full description
Jika copy filenya tolong masukin ke Daftar Pustakanya ya teman, Thanks best regards yogie mohammadDeskripsi lengkap
Hydraulic fracturing is widely accepted and applied to improve the gas recovery in unconventional reservoirs. Unconventional reservoirs to be addressed here are with very low permeability, compli...
Descripción: today in Petrovietnam University, I uploaded this file to share with everyone on the worldwide.
Jika copy filenya tolong masukin ke Daftar Pustakanya ya teman, Thanks best regards yogie mohammadFull description
today in Petrovietnam University, I uploaded this file to share with everyone on the worldwide.
Descripción: BP's hydraulic fracturing manual.
BP's hydraulic fracturing manual.Full description
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Balikpapan, 21 December 2013
Definition and Objective Rock Mechanics Fracture Mechanics
Net Pressure
Net Pressure Modes
Fracture Direction and Propagation
Fracture Dimensions
Net pressure is the “excess pressure” above closure pressure
Assuming a BHTP of 4500 psi on a formation at 10,000 ft, calculate the Net pressure for the given information… ( ν) (σv) (α) (Pr)
= = = =
0.17 0.9 Psi/ ft 0.7 3500 Psi
A gradual pressure increase means the fracture relatively contained and most movement length extension into reservoir A constant pressure in which accelerated height growth or fluid loss is causing less efficient length extension A pressure increase of unit slope in which the fracture has screened out and no further length extension takes place A gradual pressure decline in which uncontrolled height growth is occurring, resulting in narrow fracture width and poor fracture length extension
Fracture direction is normal (perpendicular) to the minimum resistance
Once fracture has been initiated it will continue to grow as long as BHTP exceeds fracture extension pressure Lower bound of propagation pressure is fracture closure pressure (σMin)
• Fracture Length: It is assumed to consist of two equal half-lengths in each side of the well • Propped Length: Conductive length, not the created hydraulic length • Fracture Width: Frac opening along fracture propagation • Fracture height: Height depends on net fracturing pressure and the stress contrast between the pay zone and the adjacent layers • Propped Height: Conductive height