![]() ![]() Pks - Recorded pump pressure at the kill rate speed, psiĪ) Pks must be recorded by circulating riser ī) Record the friction loss in the choke line at the kill rate speed, psi ICP = Pks + SIDPP ICP - Inital Circulation Pressure, psi In case of top of the kick bellow the bit, it is recommended to apply the volumetric method until kick go through the drill bit to the annular, following then the driller’s method. The formation pressure consider the depth of well. To minimize errors of calculation of the kill mud weight, the calculations made in this application considers the depth of the drill bit instead of the depth of the well to calculate the kill mud weight. This method should only be applied with the drill bit in the bottom hole or when the kick is completely in annular of the drill string. On subsea stack, after the choke fully open, the pump pressure increases until FCP 2. ![]() Complete circulation of the annular to the surface keeping the pressure of circulation with the kill mud constant named FCP – Final Circulation Pressure. Fill the drill string until the bit by keeping the pressure at the Choke (at the KILL, on subsea stack) constant and equal to SIDPP.Ģ. The second circulation should be made with the kill mud weight in two steps:ġ. That is to circulate the influx even with the original weight of the mud, keeping constant the circulation pressure named ICP – Initial Pressure Circulation. The control method to be applied is the driller’s method. In the case of operations on floating units (subsea stack), this term could be redefined as Shut-in Choke Pressure). Record information after the closing of the well corresponding to stabilization of pressure, volume gain, SIDPP (Shut-in Drillpipe Pressure) and SICP (Shut-in Casing Pressure. The driller should detect such events and closing the well immediately. Static Volumetric – Lubricate / Bleed (Top Kill)ĩ) Sections: Riser, Casing, Liner and Open Hole ġ0) Pop-up view to alert user about invalid values ġ2) Show graph theoretical of the methods.ġ3) Set drillstring with drillpipe1, drillpipe2, heavy weight, drillcollar1 and drillcollar2 ġ5) Select unit systems: Metric, SI, field1 (imperial) and field2 (mix) ġ6) set fluid parameters: mud weight, plastic viscosity, yield point and initial gel ġ7) Select rheological models: Power or Bingham ġ8) Set gradients: formations and temperature Ģ0) Vertical or Slant Well Type (KOP, TVD and Measured Depth) Ģ1) Set surface circulation equipments (mud pump and lines) Ģ3) Show schematic of well with drillstring Ģ3) Useful for filling of Standardized Kill Sheets for Well Control Ģ4) Useful for Filling of Previous Recorded Sheets Ģ6) Hydrostatic and critical pressures calculations Ģ7) Hydraulics calculations The Driller’s Methodĭuring drilling operation of oil wells, there may be inflow of formation fluids into the well, which is an undesirable condition. It is can be applied in the oilfield and also help on understanding the methods of the well control.įor Simulation, use the another app “Well Control Simulation”.įor new features, report bugs, improvements and suggestions please contact us: Control Methods:ĥ. ![]() This app is completely interactive and allows users to define a wide variety of parameters for oil wells and unit system, save data and more. This application uses the basic calculations of the methods to control oil wells after the occurrence of kick during drilling operations on floating platforms and land rigs. Well Control Methods for iPhone and iPod Touch – WCMethods
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