Content Tagged: "cement"

In this SPE Tech Talk episode with NOV, we discuss the way real-time high-resolution images and logs enable precise wellbore placement to increase production and overcome geosteering challenges.

Friday, March 29, 2024 | 10:00AM – 11:30AM CT H2 as an economically viable source of energy hinges o

Liquid loading poses a persistent challenge in gas well operations, particularly at low gas rates, leading to flow instabilities and operational disru

This topic outlines the seven common types of unconventionals. It identifies the twelve desired characteristics of productive shale gas formations and outlines the impact of unconventional drilling on shale gas resources. The process of hydraulic fracture stimulation is described. The potential for seismic to help in the search for shale reservoirs is explained. Important mechanical rock properties for reservoir engineers that help with reservoir characterization are listed. The three seismic attributes that are useful for identifying optimal drilling locations are identified, and how these attributes are derived from the direct seismic is explained. It defines the three common current inversion methods. Two important factors that affect unconventional rock velocity are described. It outlines two important factors of velocities and explains how this determines the placement of wellbores. The coherence attribute and the features it helps to identify are explained. The main objectives of a microseismic survey are discussed. It lists the reasons it is important to identify faults early in the hydrofracking operation. Four key reasons microseismic is used to monitor well stimulation activities are explained.

Petroleum exploration opportunities, like investments in the stock market, face a wide range of risks with substantial impact on ultimate financial performance; however, with careful planning, analysis and selection, these projects can be grouped into portfolios, with relatively predictable outcomes. In this module you will learn how energy opportunity diversification using portfolio management processes leads to a predictable commercial outcome. Global exploration opportunities are studied in the context of reserve and income replacement. The learner will be able to: learn key business fundamentals of an enterprise including existing businesses and their historical performance, analyze and characterize the portfolio of existing and potential businesses and rank them in light of business performance fundamentals and the strategic objectives of the enterprise, and learn how to apply risk to your decision process and its effect on the portfolio.

Covers sand control topics from rock mechanics to equipment. Emphasizes estimation and control methods. Presents gravel-pack design and placement procedures in detail, describing surface equipment used, as well as downhole screens and associated equipment.

Secondary Recovery: Waterflooding & Gas InjectionIntroduces the fundamental principles governing the displacement of oil by water in reservoir rocks, as well as techniques for predicting oil recovery by water and gas injection. Describes the important factors to consider in planning secondary recovery projects. Enhanced Recovery: Miscible FloodingIntroduces the physical and chemical processes governing the recovery of oil by miscible displacing agents. Contains extensive discussion of methods for estimating oil recovery. Describes the considerations involved in designing a miscible flood, and illustrates these considerations by reviewing a number of pilot tests and commercial projects.

The same basic fundamentals for hydrocarbon accumulation apply for small accumulations as they do for large accumulations, and those basic principles should always be applied. However, hydrocarbon exploration has become more challenging as larger discoveries are less prolific and smaller accumulations, as well as unconventional resources, require more technological advancements in order to be economically feasible. Due to these challenges, it is essential to discover and evaluate new methods and standards in petroleum geology. This topic explores these methods and standards, such as the classification of different basin types and the requirements involved with the five phases of hydrocarbon exploration. This topic further evaluates the processes involved with maturation, the categorization of organic matter and how it relates to the anticipated hydrocarbon type, and the migration of hydrocarbons and their relationship to porosity and permeability of different rock types. Types of trapping mechanisms involved with hydrocarbon accumulation and both technical and economic risks involved in petroleum geology are also identified. By exploring these methods and standards, perhaps future challenges and risks can be minimized in the field of petroleum exploration.

Introduces the deliverability equation for horizontal wells. Compares horizontal and vertical well performance. Identifies formation characteristics that favor horizontal wells, and discusses methods for their determination. Describes basic well configurations and completion designs. Looks at practical aspects of cementing, zonal isolation, casing design and sand control. Address guidelines for matrix acid treatments and hydraulic fracture stimulations.

This topic defines porosity and describes its different types as they relate to reservoir quality. It defines permeability and explains how it is determined in a laboratory setting. The course summarizes the different elements associated with rock texture and describes how those elements affect the porosity and permeability of a reservoir. It explains how capillary pressure affects the overall quality of a reservoir. The four sandstone burial factors that affect porosity and permeability and the three main cementation types that degrade porosity in sandstones are described. The course explains the ways in which porosity can be degraded in limestones and dolomites. It identifies the rocks that typically form atypical reservoirs and how porosity primarily occurs in these reservoirs. The differences between pay, net pay and gross pay, and how reservoir formations can affect these calculations are described. The five different types of reservoir shapes associated with areal continuity and the different types of reservoir orientations associated with cross-sectional continuity are explained. The course describes how to calculate a reservoir's initial oil and gas in-place volume using basic inputs and equations.

Determine the most appropriate procedures, equipment, tools and cementing materials for assuring a high-quality cement job. Upon completion of this module, the participant should be able to: determine the volume, displacement and density requirements for cementing a casing string, select the cement additives appropriate to a given job, specify the casing accessories to be use on a primary cement job, outline the steps involved in cementing a string of casing, evaluate the results of a primary or squeeze cementing operation, and calculate the volumes and displacements required to set a cement plug.

Introduces the drilling procedure and provides a clear "blueprint" for the safe, efficient drilling of a well. Integrates the mud, casing, bit, cementing and safety programs. Presents an understanding of how a well proposal is initiated and justified economically.

Evaluate the improved recovery potential of the reservoir. Upon completion of this module, the participant should be able to apply basic screening criteria and determine a reservoir's suitability for various improved recovery processes, including waterflooding and enhanced oil recovery, observe waterflood performance and perform basic recovery calculations, based on a frontal advance model and analysis of fractional flow curves, and determine the displacement efficiency of a pilot waterflood.

Upon completion of this module, the participant should be able to: prepare the well for open-hole logging operations and take steps to ensure that such operations proceed smoothly, alert the wellsite geologist and service company logging engineer of hole conditions that may require modifications or special precautions in the logging program, assist in planning and carrying out a drill stem test, determine safe operating parameters for running a production casing string, plan and carry out a simple single-stage primary cementing operation, use temperature surveys to determine the top of cement in the casing/hole annulus, and outline the steps involved in preparing the well for final completion and releasing the drilling rig.

This topic presents design and selection considerations for the equipment that makes up the lower completion, including tubulars, packers, seals and elastomers, along with downhole accessories for flowing and gas lift wells, positive displacement pumping systems and unconventional wells.