Fracture Gradient Prediction And Its Application In Oilfield Operations Pdf

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fracture gradient prediction and its application in oilfield operations pdf

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This invention is in the field of hydrocarbon well planning, and is more particularly directed to the determination of pore pressure and fracture gradient profiles at locations where hydrocarbon wells may be drilled. In the field of oil and gas production, the design of new wells has become a critical factor in minimizing drilling cost and in ensuring successful production.

Ahmed, A. December 8, Energy Resour. March ; 3 : Several correlations are available to determine the fracture pressure, a vital property of a well, which is essential in the design of the drilling operations and preventing problems.

Fracture Gradient Prediction and Its Application in Oilfield Operations

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Liang Published Engineering. The present deterministic pore pressure and fracture gradient prediction techniques simplify the input variables from a statistical range of data to a deterministic value, thereby producing over-simplified deterministic pore pressure and fracture gradient results. As a consequence, we lose the ability to quantitativel y analyze risks, and we cannot quantify the uncertainties of our pore pressure and fracture gradient prediction.

Application of artificial neural network in fracture pressure prediction

The fracture gradient is a critical parameter for drilling mud weight design in the energy industry. A new method in fracture gradient prediction is proposed based on analyzing worldwide leak-off test LOT data in offshore drilling. Current fracture gradient prediction methods are also reviewed and compared to the proposed method. We analyze more than LOT data in several offshore petroleum basins and find that the fracture gradient depends not only on the overburden stress and pore pressure, but also on the depth. The data indicate that the effective stress coefficient is higher at a shallower depth than that at a deeper depth in the shale formations.

Eaton, Ben A. Continental Oil Co. October, — OnePetro. In arriving at a new method of predicting formation fracture gradients, it was found that overburden load, Poisson's ratio for rocks, and pressure gradients vary with depth. Although the method was developed specifically for the Gulf Coast, it should be highly reliable for all areas, provided that the variables reflect the conditions in the specific area being considered. The subject of many discussions and technical papers in the last 20 years has been the prediction of the wellbore pressure gradients that are required to induce or extend fractures in subsurface formations.

Application of Quantitative Risk Analysis to Pore Pressure and Fracture Gradient Prediction

AIME supports its four Member Societies through the conferring of awards, scholarships and special grants. And, as one of the five Founder Societies of engineering , AIME provides its Member Societies with national visibility and representation within the larger engineering and scientific community. Connecting minerals, metals, and materials scientists and engineers working in industry, academia, and government from around the world.

Prediction of formation fracture pressure is an essential task in designing safer drilling operations and economical well planning, allowing effective control, operation and stimulation. Errors in fracture pressure prediction can lead to several serious problems such as lost circulation and kick, and even blowout. This paper presents an overview on application of artificial intelligent in the petroleum industry. The results obtained from the model are compared with those obtained from conventional method.

Application of Quantitative Risk Analysis to Pore Pressure and Fracture Gradient Prediction

Fracture gradient prediction: an overview and an improved method

Eaton, Ben A.. In arriving at a new method of predicting formation fracture gradients, it was found that overburden load, Poisson's ratio for rocks, and pressure gradients vary with depth. Although the method was developed specifically for the Gulf Coast, it should be highly reliable for all areas, provided that the variables reflect the conditions in the specific area being considered. The subject of many discussions and technical papers in the last 20 years has been the prediction of the wellbore pressure gradients that are required to induce or extend fractures in subsurface formations.

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1 Comments

  1. Florian B. 28.12.2020 at 14:27

    Fracture Gradient Prediction and Its Application in Oilfield Operations In arriving at a new method of predicting formation fracture gradients, it was found that overburden load, Poisson's ratio for rocks, This content is only available via PDF.