Pre-Drill Wellbore Stability

Unit Price
$50,000.00
SKU#:
10501930.1
Manufacturing Lead Time:
25 days from receipt of client data.

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Short Description
Provides pore pressure and fracture gradient (PPFG) predictions for the planned well(s) based on log data and pressure measurements from two (2) offset wells along with extracted seismic velocity Provides pore pressure and fracture gradient (PPFG) predictions for the planned well(s) based on log data and pressure measurements from two (2) offset wells along with extracted seismic velocity traces at the offset and planned well locations. The geologic structure interpretation provided by the customer will be used to estimate the potential for centroid and buoyancy effects.

Daily drilling reports specifying mud weights, rates of penetration, drilling problems, and other experiences will be examined to further calibrate the PPFG predictions. This knowledge will lead to strategies for optimizing drilling performance in the study area and will help in the determination of mud weight requirements.

To evaluate the potential for wellbore stability problems in the planned well, RDS will build a geomechanical model incorporating the results from the pre-drill PPFG prediction. Well log data from the offset well(s) will be used to estimate rock mechanical properties. The orientations and characteristics of drilling-induced fractures and wellbore breakouts identified from up to 2,000 feet of processed image logs will be used to constrain the in situ stresses. The geomechanical model will be calibrated using drilling events observed in daily drilling reports or scout tickets.

The derived field-specific geomechanical model will be utilized to predict the mud weights and casing seat depths required to prevent borehole collapse and lost circulation in one (1) planned wellbore trajectory. A quantitative risk analysis (QRA) will also be carried out to quantify the effect of uncertainties associated with the model on the predicted mud weights and to define how different parameters in the geomechanical model (e.g. pore pressure, rock strength, etc.) affect the predicted likelihood of success.

Pricing Assumptions
Pricing for the pre-drill 1D wellbore stability model is based on analysis of data from up to two (2) offset wells and wellbore stability prediction for one (1) planned well. Pricing also includes image failure analysis for up to 2,000 feet of image logs. Additional offset wells, planned wells, and or image failure analysis can be added to the Wellbore stability model at the price outlined in the additional charges section.

Deliverables

  • Geomechanical model including a description of stress orientations and magnitudes, the pore pressure model and the mechanical properties model
  • A wellbore stability analysis for the planned well including mud weight window required for safe drilling and casing depth recommendations
  • A Quantitative Risk Analysis to address model sensitivities to well design
  • Executive Summary and Final Presentation (1 hour webinar)

Application
Pre-drill well planning, mud weight and casing depth optimization

Benefits
Safe mud window to drill, reduce drilling uncertaitines and HSE risks, optimize AFE, etc

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Details

Provides pore pressure and fracture gradient (PPFG) predictions for the planned well(s) based on log data and pressure measurements from two (2) offset wells along with extracted seismic velocity traces at the offset and planned well locations. The geologic structure interpretation provided by the customer will be used to estimate the potential for centroid and buoyancy effects.

Features/Benefits

Safe mud window to drill, reduce drilling uncertaitines and HSE risks, optimize AFE, etc

Applications

Pre-drill well planning, mud weight and casing depth optimization.

Learn More

To evaluate the potential for wellbore stability problems in the planned well, RDS will build a geomechanical model incorporating the results from the pre-drill PPFG prediction. Well log data from the offset well(s) will be used to estimate rock mechanical properties. The orientations and characteristics of drilling-induced fractures and wellbore breakouts identified from up to 2,000 feet of processed image logs will be used to constrain the in situ stresses. The geomechanical model will be calibrated using drilling events observed in daily drilling reports or scout tickets.

The derived field-specific geomechanical model will be utilized to predict the mud weights and casing seat depths required to prevent borehole collapse and lost circulation in one (1) planned wellbore trajectory. A quantitative risk analysis (QRA) will also be carried out to quantify the effect of uncertainties associated with the model on the predicted mud weights and to define how different parameters in the geomechanical model (e.g. pore pressure, rock strength, etc.) affect the predicted likelihood of success.

Deliverables

  • Geomechanical model including a description of stress orientations and magnitudes, the pore pressure model and the mechanical properties model
  • A wellbore stability analysis for the planned well including mud weight window required for safe drilling and casing depth recommendations
  • A Quantitative Risk Analysis to address model sensitivities to well design
  • PowerPoint presentation and report (View sample)

Additional Info

Daily drilling reports specifying mud weights, rates of penetration, drilling problems, and other experiences will be examined to further calibrate the PPFG predictions. This knowledge will lead to strategies for optimizing drilling performance in the study area and will help in the determination of mud weight requirements.

To evaluate the potential for wellbore stability problems in the planned well, Baker Hughes Geoscience and Petroleum Engineering (GPE) team will build a geomechanical model incorporating the results from the pre-drill PPFG prediction. Well log data from the offset well(s) will be used to estimate rock mechanical properties. The orientations and characteristics of drilling-induced fractures and wellbore breakouts identified from up to 2,000 feet of processed image logs will be used to constrain the in situ stresses. The geomechanical model will be calibrated using drilling events observed in daily drilling reports or scout tickets.

The derived field-specific geomechanical model will be utilized to predict the mud weights and casing seat depths required to prevent borehole collapse and lost circulation in one (1) planned wellbore trajectory. A quantitative risk analysis (QRA) will also be carried out to quantify the effect of uncertainties associated with the model on the predicted mud weights and to define how different parameters in the geomechanical model (e.g. pore pressure, rock strength, etc.) affect the predicted likelihood of success.

Deliverables

  • Geomechanical model including a description of stress orientations and magnitudes, the pore pressure model and the mechanical properties model
  • A wellbore stability analysis for the planned well including mud weight window required for safe drilling and casing depth recommendations
  • A Quantitative Risk Analysis to address model sensitivities to well design
  • PowerPoint report and delivery.* (View sample)
*Electronic copy of presentation will be provided. Also includes onsite presentation, depending on location and cost, and/or via webinar.

Pricing Assumptions
Pricing for the pre-drill 1D wellbore stability model is based on analysis of data from up to two (2) offset wells and wellbore stability prediction for one (1) planned well. Pricing also includes image failure analysis for up to 2,000 feet of image logs. Additional offset wells, planned wells, and or image failure analysis can be added to the Wellbore stability model at the price outlined in the additional charges section.

Terms

a. Analysis dependent upon receipt of required client data (without any data quality issues)
b. All data will be transferred using Baker Hughes WellLink™ secure online data delivery system
c. This service can only be ordered online for US and Canada wells at this time

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