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Showing posts from February, 2020

Drilling Equipments - Best in Drilling Machine "WELL CONTROLE"

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Sedimentary rocks were initially deposited as horizontal beds and through compression were transformed into rocks. Serious forces came to bear that caused these initially horizontal rock layers to become contorted and reshaped into the layers that are seen here. This massive reshaping of rock layers can cause formation pressure to increase appreciably. Another source of abnormal pressure is a volume of gas “capping” or residing at the top of a permeable interval. The permeable interval contains not only the gas, but possibly oil and/or water, with the fluids separating according to density. Fracture pressure represents the pressure at which the rock fails, or fractures, and begins taking fluid from the wellbore. Contributing factors are rock type, depth of burial, and formation pressure. Prior to drilling, fracture pressure can be determined, to varying degrees of accuracy through the following resources: Off-set Wells – arguably the most accurate source of information – research usual

The Pressures of Drilling and Production

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Normal formation pore pressure is equal to the hydrostatic pressure of the most abundant, naturally-occurring water extending from the surface to the subsurface formation of interest. Having stated that, one must consider the geological environment. In some areas the local water table is close to the surface, while in other areas, it is not. Therefore, an averaging of the various water densities is done to arrive at some estimate of normal formation pressure. And as long as water can escape from a permeable formation at the same rate that deposition is taking place, normal formation pressures are created. Additionally, in order for a formation to be considered normally pressured, it is usually undisturbed with regards to localized tectonics such as faulting, uplift, folding, etc. An analogy is at left. Here is a block of foam rubber filled with water and we’ll imagine the water is not naturally leaking out. The gauge is measuring the hydrostatic pressure of the water. A stone is placed

Well Control Training and Assessment

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Well Control Training and Assessment The drilling industry had earned the reputation as an exceptionally dangerous business, with high-profile blowouts causing loss of equipment, environmental damage, and most importantly, loss of our fellow workers. With the requirement for well control certification and standardization of courses, the industry safety record has been greatly improved. The well killing companies have had to branch out into other businesses, including well control training, due to the decrease in blowouts. We are here this week to gain knowledge of how to minimize the effect of well control incidents and to gain the trust of operating companies, investors, and the general public by operating safely and efficiently. This trust will improve the reputation of the energy industry and will help in the recruitment of new personnel. We owe  it to ourselves and our colleagues to be competent in maintaining control of the wellbore at all times. A clear channel of communication m