Lost Circulation Model

During drilling or cementing operations, drilling fluid or cement slurries may be lost into the permeable or cavernous formations. This is called lost circulation. Treatment of lost circulation has become an important aspect of a successfully constructing a well. Pumping in lost circulation treatment material (LCM) while controlling bottom hole pressure and temperature requires a complete understanding of the hydraulic and thermal conditions in the wellbore.

The software has been developed to assist in the design of drilling, cementing, or well treatment operations where lost circulation is present. The simulator models the fluid displacement process with a planned pumping schedule, different loss conditions, and any annular filling operations.

The software also has been developed to assist in the design of drilling, cementing, or well treatment operations where lost circulation is present. The simulator models the fluid displacement process with a planned pumping schedule, different loss conditions, and any annular filling operations.

Features

Land and offshore well
Options to specify or calculate loss rate Multiple annulus fill situations
Lost volume vs. time
Free-fall/back-fill (U-tubing) calculation ECDs/pressures at various depths vs. time
Handling of up to 12 fluids, each at up to 40 different rates Fluid displacement animation
Shut-in time Caliper log import
Bingham Plastic, Power Law, and Herschel Buckley rheology models
Temperature at point of interest
Pressure drop calculation for coiled tubing Microsoft Word report

LCPRO-2D Displacement Simulation

LCPRO-Handles up to 12 Fluids

LCPRO-Volume Loss vs. Elapsed Time

Clean Max

Advanced Wellbore Cleanup Model

A successful wellbore cleanup is one of the most critical steps to ensure a trouble-free completion. Cleanup operations reduce the risk of formation damage and enhance well productivity by efficiently and meticulously planning out the removal of leftover drilling fluid residue and casing debris. In addition to spacer chemistry and cleanup tools, advanced displacement software has contributed to creating a more competent displacement process leading to lower operation costs and increased production.

Features

Up to 16 operation stages for land wells
Combination of 9 flow paths for deep water operations Free-fall/back-fill (U-tubing) calculation ECDs/pressures at various depths vs. time
Up to 12 fluids for each stage Circulating temperature prediction Fluid compressibility
Pressure and temperature dependent rheology Effects of pipe standoff on hydraulics Circulation sub and gravel pack
Coiled tubing operation
Flow split with 2 circulation subs

CleanMax Plus-ECD vs. Elapsed Time

Clean Max Plus-Output Summary

Stuck pipe analysis model

Stuck pipe occurrences are widely held to be the most expensive drilling problem confronting the petroleum industry and the cost of correcting, even a single occurrence, can amount to millions of dollars. Stuck Pipe Pro, developed by PVI and Chevron, calculates differential sticking force, stuck chance along drill strings or casings for pick up operation.

Features:

3D wellbore
Multiple wellbore, pipe and formation sections
Axial drag and side force calculations
Differential sticking
Additional side force due to pipe stiffness
Friction factors for different wellbore intervals
Friction factors for each pipe
Extensive tubular database included
MS Word report
US oil field, SI and customized units
3D visualization of any user-defined parameter