1 / 21

Oilfield Business - 101

Oilfield Business - 101. An overview of the Oilfield Industry Anu Kuehn 08/10/2009. Fun facts. US Oil industry – 75% natural gas and 25% Oil 8,000 companies with $80B combined revenue Half of these companies have <5 employees Fragmented industry Onshore and Offshore operations

kamil
Download Presentation

Oilfield Business - 101

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Oilfield Business - 101 An overview of the Oilfield Industry Anu Kuehn 08/10/2009

  2. Fun facts • US Oil industry – 75% natural gas and 25% Oil • 8,000 companies with $80B combined revenue • Half of these companies have <5 employees • Fragmented industry • Onshore and Offshore operations • Long process, Long time • Capital inten$ive – Drilling 35% industry revenue • Ever changing Government Rules and Regulations • Demand driven activities • Technology plays major role

  3. Oilfield Sectors • Upstream • Exploration • Drilling • Cementing • Completion • Production • Downstream • Refining and Processing • Distribution and Marketing

  4. Exploration • Surface geographical studies • Data collections from public records • Geophysical Surveys • Magnetic, electromagnetic, gravity,, seismic • Reservoir Development tools • Driller’s logs, cores and cuttings, wireline logs, formation test data, and basin Modeling • Exploratory wells • Many uncertainties and costly • Lack of success can cost from $5M to $20M

  5. Off shore Seismic Acquisition

  6. Cross section of a Reservoir Y y Oil drops in grains of sand Gas Oil Water Microscopic view Fossils

  7. Drilling

  8. Drilling Process • Prepare the drill site • Rigging up/moving the rig and related equipment • Drilling the surface hole • Pump drilling mud/fluids • Consists of water, clay, special minerals and chemicals • Cools and lubricates the drill bit

  9. Drilling Process • Running surface casing (large steel pipe) • Cementing • Well control • Control formation pressure • Prevent blow outs

  10. Spindle Top Blow out, 1901

  11. Drilling Process • Drilling to final depth • Evaluate formations/ decision making • Setting production casing • Additives • Corrosion control • Filtrate control • Lubricants • Thinners • Viscosifiers • Surfactants • Deflocculants • Dispersants • Defoamers • Shale stabilizers

  12. Cementing

  13. Cementing • Portland cement • Objectives • To seal the annulus after a casing string has been run • To seal a lost circulation zone • To set a plug in an existing well • To plug a well for abandonment • Cementing Additives • Fluid loss and gas migration additives • Cement retarders (increases thickening time) • Cement extenders(to decrease the density) • Accelarators, Dispersants and other special chemicals

  14. Well Completion • Method used is determined • The characterstics of the reservoir • Its economical potential • Methods • Open-hole, perforated, tubingless • Drilling equipment is removed • Install the wellhead • Seal off the well with safety valves and flow control devices • Completion fluids • Facilitates final operations before production • Solids free Packer fluid inhibitors

  15. Production Christmas tree Christmas tree Oilwell head Pump Jacks

  16. Production Methods • Influential factors • Underground pressure, oil/gas ratio, characteristics of rock, viscosity of oil • Primary Recovery • Jed Clampett style • Artificial lift (gas or pumps) • Secondary Recovery • Acidizing • Corrosion Inhibitors, surfactants • Extenders, intensifiers, retarders • Hydraulic Fracturing • Friction Reducers, gelling agents, Proppants, breakers, biocides, clay control, surfactants

  17. Production Methods • Tertiary Recovery • Chemical flooding • Polymer • Surfactant-Polymer • Alkaline • Gas injection • CO2 • Nitrogen • Natural Gas • Water flooding • Thermal Recovery • Steam drive • Steam soak • In situ combustion

  18. Production Methods • Enhanced Oil Recovery • Original Oil In Place • High water cut • New investments • Methods similar to tertiary recovery • Well servicing and Workover • Part replacement • Cleanout operations • Well bore clean-up chemicals • Paraffin Inhibitors, Asphaltene Inhibitors • Sand control

  19. Major Players in the Industry • Oil Companies (Operators) • MNOCs – ExxonMobil, Shell • NOCs – Petrobras, CNOC • Independents – Anadarko, Devon • Service Companies • Full service, Single service, global and regional • Chemical Companies • Specialty and Commodity suppliers

  20. Supply Chain

  21. Conclusion • Overview of Oilfield industry • Upstream activities • Additives • Major players and their suppliers • Questions/Comments • Email: Akuehn@harcros.com • Cell#: 281-705-9562

More Related