Leak-Off Test Simulator for iPhone, iPod Touch and iPad 1.1 now available on the App Store

Leak-Off Test Simulator

LOTSim2_Icon_256

 for iPhone and iPod Touch  for iPad
resized__120x45_available_appstore_icon_ resized__120x45_available_appstore_icon_

New in this update:  Sharing data files with iCloud and several improvements

This app provides a graphical very useful tool for training of Technicians, Drillers, Toolpushers, Drilling Engineers, Students and others professionals of the oil & gas industry to simulate leak-off test and more: hydraulics, hydrostatic, capacities and volumes, ability to select unit systems: Metric, Si, Imperial and Field (mix), very useful for filling well control worksheets.

About the Leak-off Test on drilling operations:
A test to determine the strength or fracture pressure of the open formation, usually conducted immediately after drilling below a new casing shoe.
Initially, pumping fluid into the borehole results in volumetric compression of the drilling mud column and elastic expansion of the casing string plus rock around the borehole. As the pressure in the borehole increases, the leak-off pressure (LOP) is reached when the relationship between pressure increase and volume of fluid pumped deviates from linear. This occurs when fluid begins to diffuse into the formation at a more rapid rate as the rock begins to dilate. Generally, a LOT is a test that finishes immediately after LOP is reached.

Features: 

1) Panel with the following parameters: pump pressure, choke pressure, mud pump speed, strokes totalizer, flow rate, mud weight and volume;
2) Intuitive graphical interface: Instruments with pointers to the parameters: pump pressure, choke pressure and open/close hydraulic choke;
3. Graph Options:
– Pressures Pump / Choke and Volume Pumped versus Pumping Time;
– Pressures Pump/ Choke and Pumping Time versus Volume Pumped;
4) Panel with alarms: pump failure, bop failure and bop status;
5) Toolbar with buttons: Data File, Well Config, Restart, Ranges, Set Alarms, Graph Limits, Pause/Continue, Restart, Set BOP, Send by email, about;
6) Set drillstring with drillpipe1, drillpipe 2, heavy-weight, drillcollar1 and drillcollar2;
7) Select floating rig or land rig;
8) Select unit systems: Metric, SI, field1 (imperial) and field2 (mix);
9) set fluid parameters: mud weight, plastic viscosity, yield point and initial gel;
10) Select rheological models: Power or Bingham;
11) Set gradients: absorption and fracture;
12) Set jet nozzles or fixed TFA;
13) Set choke parameters and BOP test pressure;
14) Vertical or Slant Well Type (KOP, TVD and Measured Depth);
15) Set surface circulation equipments (mud pump and lines);
16) Save configuration to data files;
17) Select circulation options: drillpipe -> riser and drillpipe -> choke, Close/Open (Hard shut-in) the well;
18) Reset alarms: pump failure: max pump speed, max pump pressure and max pump power;
19) Register the pressures at the kill speed ;
20) Show schematic of well with drillstring and riser, casing, liner and open hole;
21) Shut-in the well using hard method;
22) Circulation on slow rate (kill speed);
23) Useful for filling of Standardized Kill Sheets for Well Control;
24) Useful for Filling of Previous Recorded Sheets;
25) Analize of the Choke Line effect in Maximum Choke Pressure;
26) Analize of the Effect of porosity and permeability on absorption curve;
27) Simulation of the Leak-Off Test operation and Graphical Analize of the Leak-Off Test
28) Capacities and Volumes calculations;
29) Hydrostatic and critical pressures calculations;
30) Hydraulics calculations;

Basic Exercise:
1. Close BOP and Choke;
2. Set Mud Pump Speed;
3. Monitor the Choke Pressure;
4. When the pressure deviates from linear, stop the mud pump;
5. Wait until the choke pressure stabilize;
6. Tap on graph to obtain data;
7. Open choke to bleed until choke pressure to zero;

Notes:
1. Set fracture gradient > absorption gradient;
2. The Absorption curve is function of porosity and permeability.
3. Tap with finger and moving it in the graph area to obtain Choke Pressure,
Equivalent Density, Equivalent Gradient, Volume Pumped and Pumping Time.

For iPhone and iPod Touch:

LOT1_11_01
LOT1_11_08

For iPad:

LOT2_11_01
  wellcontrol_url.png

 contact@wellcontrol.com.br

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Updates to Leak-Off Test Analyzer for iPhone, iPad and Mac OS X: iCloud Support

Leak-Off Test Analyzer

LOT3_Icon_256

for iPhone and iPod Touch version 1.2   for iPad version 1.2    for Mac OS X  (soon version 1.2)
Available on the App Store Available on the App Store Available on the Mac App Store

New in the version 1.2Sharing Data Files with iCloud.

This app provides for Technicians, Drillers, Toolpushers, Drilling Engineers, Students and others professionals of the oil industry a very helpfull tool to analysis and use during the performing of the leak-off test in wellsite.

About the Leak-off Test on drilling operations:

A test to determine the strength or fracture pressure of the open formation, usually conducted immediately after drilling below a new casing shoe.

Initially, pumping fluid into the borehole results in volumetric compression of the drilling mud column and elastic expansion of the casing string plus rock around the borehole. As the pressure in the borehole increases, the leak-off pressure (LOP) is reached when the relationship between pressure increase and volume of fluid pumped deviates from linear. This occurs when fluid begins to diffuse into the formation at a more rapid rate as the rock begins to dilate. Generally, a LOT is a test that finishes immediately after LOP is reached.

Features: 

1. Intuitive graphical interface;

2. Ability to work with multiple files;

3. Set ranges for graph;

4. Graph Options:

– Choke Pressure and Volume Pumped versus Pumping Time;

–  Choke Pressure and Pumping Time versus Volume Pumped;

5. Data edition (add, edit/save, insert, remove);

6. Ability to send screenshots by email;

7. Ability to print via AirPrint

8. Tap with finger and moving it in the graph area to obtain Choke Pressure,

Equivalent Density, Equivalent Gradient, Volume Pumped and Pumping Time.

 

For iPhone and iPod Touch

LOT1_12_01 LOT1_12_02
LOT1_12_03 LOT1_12_04
LOT1_12_05 LOT1_12_06

For iPad

LOT2_12_01
LOT2_12_02
LOT2_12_03
LOT2_12_04

For Mac OS X

LOT3_12_02
LOT3_12_03
LOT3_12_04
wellcontrol_url.png

contact@wellcontrol.com.br

http://www.wellcontrol.com.br