Petroleum Operations Geology – An Outlines

Petroleum Operations Geology – An Outlines

Fundamental knowledge to meet the modern demands in well planning, well execution, and well finalization.

OBJECTIVES :

1. CONDUCT the geological planning for a well including risk analysis, formation pressure forecasting and data acquisitions programs
2. MANAGE contractor activities and maintain quality control on data acquisition and operations
3. MONITOR execution of the phase of a well, make informed decisions, and manage data, and advise on coring and wireline logging actitivities
4. ORGANIZE end of well activities including reporting, lessons learned meetings and final data distribution

OVERVIEW

Operations Geology include duties and responsibilities with respect to data management, well planning, subsurface hazard identification and mitigation, contractor selection and management, HSE, data acquisition planning. During the well execution phase, monitoring of coring, wireline logging, geosteering, and pore pressure evaluation. Post well duties including end of well reporting, data distribution and archiving.

The Operations Geologist Skill sets

Be able to conduct the geological planning for a well including risk analysis, formation pressure forecasting, and data acquisition programs.

Be able to monitor the execution phase of the well , make informed decisions, manage data, and advise on coring and wireline logging activities

Be able to manage end of well activities including reporting, lesson learned meetings, and final data distribution.

Well Planning

1.    Overview of Well Planning

2.    Importance of Minimizing Non-Productive Time (NPT)

3.    Understanding the Prospect

4.    Offset Well Data Acquisition and Interpretation

5.    Detailed Risk Assessment and Presentation of Risk

Well Planning procedure

1.    Required Documentation

2.    Data Acquisition Program (Wireline vs LWD)

3.    IT and Communications

4.    Well AFE (Authorization for Expenditure)

5.    Permitting

6.    Pre-Well Meetings and Finalization

Data Management, Contracting, Coring, & Sidewall Coring

Data Management

·         Growth of Operations Geology Data

·         Types of Data

·         Use of File Naming Conventions and Directory Structure

Contracting and Contractor Quality Assurance

·         Types of Contractors

·         General Contracting Process

·         Quality Assurance of Contractors

Coring and Sidewall Coring

·         Processing of Coring and Sidewall Coring

·         Core Analysis Overview

·         Picking Core Points

·         Picking Side Wall Core Points

Geosterring & ERD, Introduction to Formation Pressures

Geosteering and ERD

·         Extended Reach Drilling (ERD)

·         Operations Geology and Geosteering

Introduction to Formation Pressures and Definition of Terms

·         Why is it important?

·         Definition of Terms

·         Units of Measurement

·         Fluid Pressures

Overview of Earth Stress

·         Fracturing and Borehole Break-out

Overburden Pressures and Overburden Gradients (OBG)

·         Definitions

·         Methods of Calculation

·         Formation Density

Evaluation of Formation Pressure While Using Wellsite Data

Wellsite Formation Pressure Evaluation

·         Introduction and Overview

·         Fundamental Aspects

Quantitative Analysis Methods

·         Ratio Method

·         Equivalent Depth or Matrix Stress Methods

·         Eaton Method

·         Common Problems

·         What method should be used?

Direct Pressure Measurements

·         Influxes and Kicks

·         Wireline and LWD Pressure Measurements

·         Drill Stem Tests

Fracture Pressure Measurements

·         LOTs and FITs

·         LOT Plots and Diagnosis

·         Mud Losses and Lost Circulation

·         Wellbore Strengthening

Indirect Pressure Indicators

·         Introduction

·         Drilling Indicators and DXC

·         Shale Characteristics

·         Hole Conditions

·         Cuttings and Cavings Analysis

·         Gas Event Monitoring

·         Geothermal Gradient/Temperature

·         Mud Resistivity/Conductivity

Good Evaluation Practices

Post Well Evaluation

Course Round-up and Finalization

Youtube:

References:

• Google.com
• Youtube.com
• https://www.amazon.com/PETROLEUM-DRILLING-OVERVIEW-Andi-Anriansyah/dp/1792194684
• https://www.amazon.com/PETROLEUM-WELL-COMPLETION-OVERVIEW-1/dp/1792195575