際際滷

際際滷Share a Scribd company logo

Reservoir rock samples

Download as PPTX, PDF
Y
Yani Carolina Araujo

Rock core samples are taken from reservoirs to analyze the geological formations and understand properties like porosity and permeability. There are different types of rock samples including core samples, cuttings, and sidewall cores. Core samples involve drilling into the reservoir with a hollow steel tube to extract a cylindrical rock sample preserving its structure. The core is then prepared in the lab for analysis to characterize the reservoir and model fluid flow properties essential for evaluating the hydrocarbon resource.

Convert to study guideBETA

Transform any presentation into a summarized study guide, highlighting the most important points and key insights.

1 of 13
Download to read offline
Reservoir rock samples
RESERVOIR Rock Core Samples Yani Carolina Araujo
Introduction: The reservoir Types of rock samples Drilling cuts Wall Core Coring process Core preservation Core preparation for laboratory analysis Why we need rock samples? CONTENT Any fool can know. The point is to understand. Albert Einstein
THE RESERVOIR A petroleum reservoir, or oil and gas reservoir, is a subsurface container of hydrocarbons confined in porous or fractured rock formations. Reservoir Rock Impermeable Rock Cap Rock Sedimentary Rock: Sandstone Carbonates
http://bc.outcrop.org/GEOL_B10/lecture13.html Overburden Pressure (Confining or Lithostatic) is the pressure or stress imposed on a layer of rock by the weight of overlying material. This pressure exerts pressure on both the grains and pore fluids. Formation pressure is the pressure of the fluid within the pore spaces of the rock. THE RESERVOIR Hydrostatic Pressure is the total fluid pressure created by the weight of a column of fluid, acting on any given point in a well.
Well Logs WELL LOGS
Coring Intervals DEFINING THE CORING AREA
TYPES OF CORE SAMPLES Drilling Cuttings SidewallSamples SamplesforReservoirStudies Broken bits of solid material removed from a drilled borehole Percussion: A gun assembly shooting hollow bullets across mud into the formation Bullets designed for hard or soft rock Must be shot from bottom up to avoid cutting cables holding bullets already shot Rotary: The rotary sidewall tool uses a small robotic core bit to bore a core sideways into the formation. The core is then loose and withdrawn into the main coring tool where the plug is retrieved and stored. Then the tool is moved to another spot in the hole, and the robotic bit is again extended and used to take another core.
TYPES OF CORE SAMPLES Samples for Reservoir Studies Core Samples Obtained by drilling with special drills into the reservoir with a hollow steel tube called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample different media under different conditions. In the coring process, the sample is pushed more or less intact into the tube. Removed from the tube in the laboratory, it is inspected and analyzed by different techniques and equipment depending on the type of data desired. A cylindrical section of rock from a specific well depth Core preserves its geological structure and physicochemical characteristics
CORING PROCESS
CORE PRESERVATION Wax Preservation Other Methods: Foam Dry Ice Steel Tube
CORE PREPARATION Source: J. B. Martell Andrade, Desarrollo de la Evaluaci坦n Petrof鱈sica en M辿xico y su Futuro a trav辿s de la UNAM
WHY ROCK SAMPLES? Rock cores are the only representative element of the reservoir rock that are physically available for examination and modeling for basic flow processes

More Related Content

Reservoir rock samples

  • 3. Introduction: The reservoir Types of rock samples Drilling cuts Wall Core Coring process Core preservation Core preparation for laboratory analysis Why we need rock samples? CONTENT Any fool can know. The point is to understand. Albert Einstein
  • 4. THE RESERVOIR A petroleum reservoir, or oil and gas reservoir, is a subsurface container of hydrocarbons confined in porous or fractured rock formations. Reservoir Rock Impermeable Rock Cap Rock Sedimentary Rock: Sandstone Carbonates
  • 5. http://bc.outcrop.org/GEOL_B10/lecture13.html Overburden Pressure (Confining or Lithostatic) is the pressure or stress imposed on a layer of rock by the weight of overlying material. This pressure exerts pressure on both the grains and pore fluids. Formation pressure is the pressure of the fluid within the pore spaces of the rock. THE RESERVOIR Hydrostatic Pressure is the total fluid pressure created by the weight of a column of fluid, acting on any given point in a well.
  • 8. TYPES OF CORE SAMPLES Drilling Cuttings SidewallSamples SamplesforReservoirStudies Broken bits of solid material removed from a drilled borehole Percussion: A gun assembly shooting hollow bullets across mud into the formation Bullets designed for hard or soft rock Must be shot from bottom up to avoid cutting cables holding bullets already shot Rotary: The rotary sidewall tool uses a small robotic core bit to bore a core sideways into the formation. The core is then loose and withdrawn into the main coring tool where the plug is retrieved and stored. Then the tool is moved to another spot in the hole, and the robotic bit is again extended and used to take another core.
  • 9. TYPES OF CORE SAMPLES Samples for Reservoir Studies Core Samples Obtained by drilling with special drills into the reservoir with a hollow steel tube called a core drill. The hole made for the core sample is called the "core hole". A variety of core samplers exist to sample different media under different conditions. In the coring process, the sample is pushed more or less intact into the tube. Removed from the tube in the laboratory, it is inspected and analyzed by different techniques and equipment depending on the type of data desired. A cylindrical section of rock from a specific well depth Core preserves its geological structure and physicochemical characteristics
  • 11. CORE PRESERVATION Wax Preservation Other Methods: Foam Dry Ice Steel Tube
  • 12. CORE PREPARATION Source: J. B. Martell Andrade, Desarrollo de la Evaluaci坦n Petrof鱈sica en M辿xico y su Futuro a trav辿s de la UNAM
  • 13. WHY ROCK SAMPLES? Rock cores are the only representative element of the reservoir rock that are physically available for examination and modeling for basic flow processes