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iCem ® Service. Achieving wellbore integrity with sound, technical decision making. Increasing the Probability of Wellbore Integrity. Sound technical decisions rely on: Field-proven technical solutions Laboratory-driven empirical data.

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icem service

iCem® Service

Achieving wellbore integrity with sound, technical decision making

increasing the probability of wellbore integrity
Increasing the Probability of Wellbore Integrity

Sound technical decisions rely on:

Field-proven technical solutions

Laboratory-driven empirical data

And now the most robust cementing design tool available in the industry:

iCem®Service

Drive better decisions by collaboratively conducting iterative scenarios and evaluating alternatives for achieving successful cementing operations.

icem service wellbore integrity
iCem® Service – Wellbore Integrity

Increasing the probability of

a successful cementing job

Restrict fluid movement between formations

Bond and support the casing

Water Aquifer

Hydrocarbon Zone

Hydrocarbon Zone

general cementing job process overview
General Cementing Job – Process Overview

Solution Development

  • Finite Element Analysis
  • Computational Fluid Dynamics

Job Execution

  • Density Control
  • High-Capacity Blender
  • Dropping the Plug
  • Bulk Delivery and Feed

Results Evaluation

  • Bump the Plug
  • Cement Bond Log

Cement Sheath with optimum zonal isolation

is the objective for each individual well.

slide6

iCem®Service – Process Overview

Solution Development

  • Well Configuration
  • Formation Properties
  • Casing Properties
  • Operational Loads
  • Mud, Spacer, Cement Fluid Properties

Job Execution

  • Real-Time Data
    • ECD (calculated)
    • Fluid Volumes & Densities
    • Pump Rates
    • Planned vs Actual Job Comparison

Results Evaluation

  • Future Design Optimization
  • Analysis of ECDs, Fluid Volumes, Fluid Density, Pump Rates, etc.

High-Level Features

  • Fresh User Interface
  • PROFILE™ Wellbore Schematic with Directional View
  • 2D Hydraulics Simulator
  • 3D Fluid Displacement
  • Simulator
  • Stress Analysis Simulator
  • Dynamic Temperature Modeling with Heat Transfer and Slurry Placement Temperature Graph
  • Real-time Data Acquisition and Monitoring
slide7

Legacy Discrete Software Now Consolidated

OptiCem™ Software

Cement Job Simulation

Finite Element Analysis

Displace 3D® Simulator

Displacement models in 3D

Computational Fluid Dynamics

WellLife® Express Service

Cement Sheath Stress Analysis

Finite Element Analysis

Data Acquisition

Field data acquisition and monitoring

iCem®

Service

two dimensional hydraulic simulation
Two-Dimensional Hydraulic Simulation

Equivalent circulating density (ECD) management

Dynamic temperature affects on fluid properties

Pump schedule design

With and without foam cement

Volume to achieve TOC

Balanced plug

Standoff

Torque and drag

Surge and swab

Mud removal and erodibility

Advanced rheological modeling

Other utilities (i.e. integrated fluid-flow potential)

Complex wellbore geometry designs

Automatic pump rate adjustment to stay below fracture gradient

two dimensional hydraulics simulation
Two-Dimensional Hydraulics Simulation

Interactive temperature profile graph

Casing temperature

Annular temperature profiles

Bottomhole circulating temperature

two dimensional hydraulics simulation1
Two-Dimensional Hydraulics Simulation

Cement stages temperature tracker

three dimensional displacement simulator
Three-Dimensional Displacement Simulator

Fluid interface

Fluid placement over time at all depths

Drilling fluid

Spacer

Lead cement

Tail cement

Helps determine spacer volume to avoid contamination of cement

three dimensional displacement simulator1
Three-Dimensional Displacement Simulator

Conforms to highly eccentric annuli or localized washout

Predict Material Volumes to

Avoid contamination

Achieve top of cement (TOC)

Achieve optimum casing standoff

Determine impact of pump rate

Determine impact of pipe rotation and reciprocation

three dimensional displacement simulator2
Three-Dimensional Displacement Simulator

The same data can be represented both in a graph (above) or a cross section of the well (below)

Helps determine a volume of spacerfor optimized displacement.

70%

10%

Direct correlation of data.

In this example further iterations are required to develop a design that eliminates channeling.

cement sheath stress analysis
Cement Sheath Stress Analysis

Cement hydration

Shoe pressure testing

Fracturing / stimulation

Completion fluid change out

Injection and production

Evacuation / unloading

Well kill

Examines Effects of Planned Well Operations on Specific Cement Designs

cement sheath stress analysis1
Cement Sheath Stress Analysis

Predicts the competence of a cement sheath

Generates mechanical properties for the sheath to survive downhole stress conditions

Simulator elements

Properties of the formation

Well structure

Long-term critical well conditions

Operation Type MD TVD Pre-Job Temperature

(ft) (ft) (°F)

Product 166880 166880 141.0

Casing Fluid Pressure Casing Fluid Temperature Pore Pressure

(psi) (°F) (psi)

11409.0 416.0 11076.0

cement sheath stress analysis what if
Cement Sheath Stress Analysis – “What If?”

Reports on performance differing cement systems allowing cost analysis

Enables decisions based comparisons of cementing mechanical properties

Young’s Modulus

Poisson’s Ratio

Shrinkage

Thermal expansion

Compressive strength

Tensile strength

Thermal conductivity

Specific heat

real time data acquisition and monitoring
Real-Time Data Acquisition and Monitoring

Real-time collection and graphing of cementing operations data

Equivalent circulating densities (ECDs)

Pump pressure

Pump rate

Fluid volume

Fluid density

Scores

real time data acquisition and monitoring1
Real-Time Data Acquisition and Monitoring

Evaluation of pre-job simulations against recorded job data – During or after the job

Identification of probable causes of irregularities on the job

Enables optimization of future designs

case history field application
Challenge (Libya)

Poor cement bond log (CBL) results from first two production wells in a new field

Solution

Three-dimensional displacement Simulation and cement sheath stress analysis

Modified mud rheology

Increased use of centralizers to achieve 70% standoff

Increased spacer volume to 60 bbl

Result

Significantly improved CBLs in wells after optimized plan via iCem® service

Case History – Field Application

Excellent CBL after simulations

designed solution modifications

Poor CBL from

previous wells

case history field application1
Challenge (Shale North America)

Highly stressed formation subjecting wells to excessive washout, sloughing shales, stuck pipe, and poor cement jobs

Solution – iCem® service simulation revealed risks of debonding and causes of sheath failure over time due to wellbore stresses and led to changes as follows:

Wellbore fluid conditioning

Optimized centralizer placement for proper standoff

Cement spacer properties

Resilient mechanical properties designed into the slurry to address completion and production wellbore stresses to the cement sheath

Result

CBL indicated dramatic improvements in placement coverage over conventional cements used previously

Previously required remediation was avoided

Case History – Field Application
case history field application2
Challenge (HPHT)

High profile eastern-hemisphere wells for a major operator in a field where previous wells experienced

Gas migration and channeling issues

Expense and delay of remedial cementing operations

Solution – Eight (8) iCem® service simulations run during a 2-hour meeting evaluating the following parameters

Spacer volume

Wiper plugs

Rotation and reciprocation during pumping operations

Pump rates

Centralization

Result

Spacer volume doubled over previous well plans

Pump rates increased though still within fracture gradient limits

Centralizers changed to ones that allow pipe rotation

Cement bond logs were excellent / no remediation required

Case History – Field Application
slide23

Summary

Job Plan

Slurry Design

Surge & Swab Avoidance

Cement Mechanical Properties

Centralizer Selection

iCem®

Service

Cement Sheath Analysis

Casing Placement

Achieve Top-of-Cement

Torque & Drag Minimization

ECD Management

Mud Conditioning

Avoid Cement Contamination

Displacement Efficiency

questions
Questions?

iCem®Service