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Description
Well Control Simulator provides a graphical very useful tool for training of roughnecks, derrickmen, drillers and students in the well control procedures.
– Interactive System: no pre-set methods;
– Ability to apply methods: Driller’s method, wait and weight, dynamic volumetric and static volumetric (lubricate and bleed);
– Hydraulics and Hydrostatics;
– Behavior of the kick;
– Applied with subsea stack and surface stack;
– Set well with until 4 sections: riser, casing, liner, open well;
– Set Drillstring with drillpipe1, drillpipe2, heavy weight, drillcollar1, drillcolar2
Kick Model in this simulator:
The model assumes that the kick starts as a single bubble at the bottom of hole and migrates upward as a single bubble from the bottom to the surface. In underbalanced condition (BHP<Form Pressure) during control, the single bubble volume is incremented with the inflow volume from formation to the well.
Notes:
– In this simulator, the student inputs the parameters of the kick and applies a method to control.
– No drilling. For drilling simulation and kick detection, check the Drilling Simulators apps available in our portfolio”.
– Visit the our website for User’s Guide.
Visit our Portfolio on the App Store
for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our Portfolio on the App Store
for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
App designed for both iPhone and iPad
New Version 2.0 coming soon on the App Store !!!
Drilling Simulator 1:
– Drilling on vertical well, kick detection, shut-in, stabilisation of pressures (sidpp, sicp, kick volume), save to iCloud to import from other app “Well Control Simulator”.
Drilling Simulator 2:
all of drilling simulator 1 PLUS Direcional and horizontal wells, well control using 01 choke and 01 single kick bubble on borehole and graphical analysis.
Drilling Simulator 3 (This App)
all of drilling simulator 2 PLUS:
1 – until 03 single kick bubbles on the borehole simultaneously
2 – standpipe manifold and choke manifold with 02 chokes and straight through
3 – Complications: failures schedule with Random option:
– Mud Pumps 1 and 2 “power end failure” or “fluid end failure”,
– Chokes 1 and 2 “plugged” or “washed”,
– One Drill Bit Nozzle “plugged” or “washed”
———-
New in the next update (version 2.0 – Coming soon):
– Improved circulation options with subsea valves upper kill & lower kill & upper choke
– On subsea wells, now it is possible to circulate kill mud in the kill line & riser after filling choke line with kill mud weight, keeping bop closed.
– On surface wells, added upper kill line, upper choke and a check valve in kill line
– improved visual of the gauges.
SURFACE WELL: DRILLING
SUBSEA WELL: WELL CONTROL APPLYING THE DRILLER’S METHOD, WITH COMPLICATIONS:
SUBSEA WELL: CIRCULATING KILL MUD IN THE KILL LINE WITH RETURN TO RISER, KEEPING BOP CLOSED:
SUBSEA WELL: CIRCULATION COMPLETE WITH KILL MUD IN THE RISER AND BOP OPEN:
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for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
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During drilling operations on oil wells, there may to occur the inflow of formation fluids into the well, which is an undesirable condition. The driller should detect such events and shut-in the well immediately and to record informations corresponding to stabilization of pressures SIDPP (Shut-in Drillpipe Pressure) and SICP (Shut-in Casing Pressure) and the volume gain.
There are two methods more used to well control when the drill string (drill bit) is in the bottom of borehole (normally on drilling when reaches a formation with pressure bigger relative to the bottom hole pressure): The Driller’s Method and the Wait and Weight Method (also named Engineer ‘s Method).
The Driller’s Method is performed with two circulations. The first circulation with the original fluid to circulate the influx out of well and the second circulation to fill the borehole with a new fluid. This method can be started immediately after shut-in the well.
The Wait and Weight Method is performed just with a single circulation with the new fluid, but is necessary to wait a lag time until to prepare the new fluid to start the method.
The choice between these two methods is a controversial question among professionals of oil & gas, but if the rig has already the new fluid available to control the well (the hydrostatic pressure of the new fluid is equivalent to the formation pressure), the Wait and Weight method is aplied and the control will be just with a single circulation in two steps:
Replacing the original fluid in the drill string with the new fluid circulating until the drill bit. Start pump and bring the pump speed until the slow circulation rate, keeping the circulating pressure according the table “Pressure versus Pumped Strokes”, starting with the Initial Circulating Pressure (ICP) and ending with the Final Circulating Pressure (FCP).
ICP = SIDPP + Circulating Pressure @ Slow Circulating Rate (recorded previously).
FCP = Pressure(@ scr) x New Fluid Density / Original Fluid Density
On vertical section, the rate “pressure drop / stroke” is constant and the calculations can be made in 10 steps.
On deviated section, starting on Kick-Off Point (KOP), the rate “pressure drop / stroke” is not constant. The calculations will consider the steps by 100 strokes each.
Continue the circulation with the new fluid to fill the all annular until the surface keeping the circulating pressure constant equal to FCP – Final Circulating Pressure.
It is very important to monitor operational limits during the circulation to avoid fracture of the formation, usually at the shoe depth of the last casing.
The advantage of the “Wait and Weight” method is to provide a lower resultant pressure at the shoe depth before the gas reaches the shoe depth, that is, when the new fluid passes through the drill bit, increasing the hydrostatic pressure in the annulus before of the gas to reach the shoe depth.
The Wait and Weight method is advantageous when the rig has already the new fluid available to immediate circulation. Normally the new fluid need a lag time to be prepared. (1) On well closed, an influx of gas is moving up continuously and pressurizing the borehole all the time. (2) The calculations to control directional wells are relatively complex.
If it is not possible for the new fluid to reach the annulus before the gas reaches the shoe depth, due to (1) the lag time to prepare the new fluid or (2) the volume of the drill string is greater than the volume of the annulus above the gas until the shoe depth or (3) the difficulty to calculations on directional wells or (4) formations with low fracture pressure on deepwater for example, it is recommended choose the “Driller’s Method” to start immediately after the shut-in the well, holding the circulation pressure equal to Initial Circulating Pressure until the circulation of the total volume of the annulus and to replace the fluid only in the second circulation of this method.
I hope that this simple explanation about the Wait and Wait method on directional wells helps on choicing the method most efficient.
Well Control Methods apps: |
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Well Control Worksheets apps: |
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Visit our Portfolio on the App Store
for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
(early 2018 on the App Store)
This application provides well control simulations on production wells in workover operations with coiled tubing and slickline on landing rigs for training in Oil & Gas.
A surface production well (vertical or directional) is used to practice basic operations like moving the coiled tubing into the tubing string and circulating a lesser density fluid, with density smaller that the formation equivalent density, to put the well in flow (underbalance condition) to well control practices: hydraulics calculations, swabbing (on tripping out) and control methods including static volumetric (lubricate and bleed) and bullheading.
This application provides well simulation on production wells in workover operations with slickline on landing rigs for training in Oil & Gas.
A surface production well (vertical or directional) is used to practice basic operations like moving the slickline into the tubing string with tools to install and to retrieve specific plugs.
These plugs are installed and retrieved in two trips using slickline.
This application provides well control simulations on production wells in workover operations with coiled tubing on landing rigs for training in Oil & Gas.
A surface production well (vertical or directional) is used to practice basic operations like moving the coiled tubing into the tubing string and circulating a lesser density fluid, with density smaller that the formation equivalent density, to put the well in flow (underbalance condition) to well control practices: volumes and hydraulics calculations, swabbing (on tripping out), etc.
Visit our Portfolio on the App Store
for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
designed for both iPhone and iPad
| User Guide for iPad | Download PDF (51 MB) |
Drilling Simulator 1:
– Drilling on vertical well, kick detection, shut-in, stabilisation of pressures (sidpp, sicp, kick volume), save to iCloud to import from other app “Well Control Simulator”.
Drilling Simulator 2:
all of drilling simulator 1 PLUS Direcional and horizontal wells, well control using 01 choke and 01 single kick bubble on borehole and graphical analysis.
Drilling Simulator 3 (New)
all of drilling simulator 2 PLUS:
1 – until 03 single kick bubbles on the borehole simultaneously
2 – standpipe manifold and choke manifold with 02 chokes and straight through
3 – Complications: failures schedule with Random option:
– Mud Pumps 1 and 2 “power end failure” or “fluid end failure”,
– Chokes 1 and 2 “plugged” or “washed”,
– One Drill Bit Nozzle “plugged” or “washed”
4 – Drill Pipe Float Valve (non-ported)
5 – Finger Gestures up/down to move the drill string (the kick is induced by swabbing effect for volumetric methods)
Visit our Portfolio on the App Store
for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
designed for both iPhone and iPad
Drilling Simulator 1:
– Drilling on vertical well, kick detection, shut-in, stabilisation of pressures (sidpp, sicp, kick volume), save to iCloud to import from other app “Well Control Simulator”.
Drilling Simulator 2:
all of drilling simulator 1 PLUS Direcional and horizontal wells, well control using 01 choke and 01 single kick bubble on borehole and graphical analysis.
Drilling Simulator 3 (New)
all of drilling simulator 2 PLUS:
1 – until 03 single kick bubbles on the borehole simultaneously
2 – standpipe manifold and choke manifold with 02 chokes and straight through
3 – failures schedule with Random option:
– Mud Pumps 1 and 2 “power end failure” or “fluid end failure”,
– Chokes 1 and 2 “plugged” or “washed”,
– One Drill Bit Nozzle “plugged” or “washed”
4 – Drill Pipe Float Valve (non-ported)
5 – Finger Gestures up/down to move the drill string (the kick is induced by swabbing effect for volumetric methods)
User Guide – Coming Soon
Visit our Portfolio on the App Store for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
This app is applied on oil wells (drilling operations) and it provides the Kick Tolerance as maximum kick volume concept.
This is a limited version using the drill string just drill pipe and drill collar to help in the understanding of this kick tolerance concept. It is an useful tool for students on the well control schools, drilling engineering universities, etc.
For more features like maximum pore pressure concept, graphical analysis, choke line effects on deepwater, directional and horizontal wells, drill string w/ 5 sections, temperature gradient effects, data files, etc, check the full version available for sale on the our portfolio.
This app was developed based in existent spreadsheets. There is no comparison with any other software.
Our goal was to create an application with the help of experts to share with drilling engineers, technicians, drillers, students and teachers of drilling engineering.
There is no intention to replace the professional softwares.
You can contribute with suggestions for improvements, correcting the translation to english, reporting bugs and spreading it to your friends.
Thanks
iPhone version
iPad version
Visit our Portfolio on the App Store for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
Visit our website for more Oil & Gas apps for iPhone, iPod Touch, iPad and Mac OS X.
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