Drilling an oil well from surface drilling to completion – video training

This is one of excellent training video demonstrating the drilling process from start at surface casing to completing of the well in less than 7 minutes. This would be a good tool to teach people about drilling in our oil and gas industry. We also provide video transcription in order to help learners understand the content easily. If you love this content, please feel free to share with your friends.

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An Introduction to the Oil Industry for Kids – Free Download

It is quite difficult to find a book that explain about oil and gas industry to our children. There are many times that you are asked about oilfield by your kids and you could not find the good resource to explain them. Today we would like to share one of the best and simple oilfield books for kids. This book is “I need to know – An Introduction to the Oil Industry & OPEC“. An introduction to the Oil Industry and OPEC tells the story of oil. It tells how crude oil – or, using its more technical term, petroleum – was discovered, how it is explored and taken from the ground and made into other products.

The contents in this book are well written into simple language in order to explain about oilfield to young generations around the world. Not only is it good for children, it is also excellent to educate people who do not know much about oil and gas industry. The contents in this book are listed below; Continue reading

Water Phase Salinity of Oil Based Mud

Water phase salinity is a factor showing the activity level of salt in oil based mud. In order to control the water phase salinity, salt is added into the drilling fluid. The salt added into the system will be dissolved by water in the mud; therefore, the chloride content will increase.

By increasing the chloride concentration (adding salt), the activity level in the mud will decrease. Salt is added in order to create an activity level which is equal to or less than formation water. Therefore, the water phase in the mud will not move into formation and cause a clay swelling issue. Practically, calcium chloride (CaCl2) or sodium chloride (NaCl) is the chemical to be used.

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25 World’s Largest Public Oil & Gas Companies in 2016 – Interesting Information

The World’s Largest Public Oil & Gas Companies in 2016 by Forbes. This is so interesting to know that Russian companies are ranked as the first and the second biggest public oil and gas company in 2016.

Forbes’ List of the 25 Biggest Public Oil & Gas Companies

  1. Gazprom gazprom(GAZP, com) – Russia – 8.38 MMBoepd – EV $84.3 billion
  2. Rosneftrosneft (ROSN, com) – Russia – 5.07 MMBoepd – EV $72.5 billion
  3. ExxonMobil exxon( XOM, com) – USA – 4.10 MMBoepd – EV $390 billion
  4. PetroChina petrochina( PTR, com) – China – 4.07 MMBoepd – EV $303 billion
  5. BP bp(BP; com) – UK – 3.24 MMBoepd – EV $121 billion
  6. Royal Dutch Shell shell(RDS.A – com) – Netherlands – 2.95 MMBoepd – EV $216 billion
  7. Chevron chevron(CVX; com) – USA – 2.62 MMBoepd – EV $207 billion
  8. Petrobras petro-bras(PBR; com) – Brazil – 2.55 MMBoepd – EV $132 billion
  9. Lukoil luk-oil(LKOH; com) – Russia – 2.40 MMBoepd – EV $36.2 billion
  10. Total total(TOT; com) – France – 2.35 MMBoepd – EV $136 billion
  11. Statoil stat-oil(STO; com) – Norway – 1.81 MMBoepd – EV $63 billion
  12. Eni eni( E; com) – Italy – 1.69 MMBoepd – EV $74 billion
  13. ConocoPhillips conoco-philip(COP; com) – USA – 1.59 MMBoepd – EV $71.5 billion
  14. Surgutneftegas surgutneftegas(SGTZY; ru) – Russia – 1.49 MMBoepd – EV $8.5 billion
  15. CNOOC cnooc(CEO; com) – China – 1.36 MMBoepd – EV $397 billion
  16. China Petroleum & Chemical [Sinopec] sonopec(SNP; com) – China – 1.32 MMBoepd – EV $130 billion
  17. Oil and Natural Gas Corp.ongc (ONGC; com) – India – 1.07 MMBoepd – EV $23 billion
  18. Anadarko Petroleum adanako(ticker: APC; com) – USA – 840,000 Boepd – EV $43 billion
  19. Canadian Natural Resources canadian-natural-resources(CNQ; com) – Canada – 790,000 Boepd – EV $40 billion
  20. Devon Energy devon(DVN; com) – USA – 680,000 Boepd – EV $29 billion
  21. Ecopetrol ecopetrol(EC; com) – Colombia – 670,000 Boepd – EV $33 billion
  22. Occidental Petroleum oxy(OXY; com) – USA – 650,000 Boepd – EV $57 billion
  23. Suncor Energy suncor(SU; com) – Canada – 580,000 Boepd – EV $50 billion
  24. EOG Resources eog(EOG; com) – USA – 570,000 Boepd – EV $47 billion
  25. Repsol repsol( REP; com) – Spain – 560,000 Boepd – EV $33 billion

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Oil Well Cement Additives

Most oil well cement slurries will be added to some additives in order to modify cement properties so cement operation can be properly performed. In this article, it will cover some of important cement additives in general terms so that it will help you understand the basic function of each additive.

oilwell-cement-addtives

Accelerators

Accelerators are added to shorten the time for cement to properly set and it will reduce rig time while waiting on the cement (WOC). Accelerators are crucial in shallow depths where bottom temperature is low. In the deeper section, it may not require an accelerator, because the well is hot enough and the thickening time will be normal. The WOC time is generally based on the time required to obtain 500 psi compressive strength of the cement.

Chemical used as accelerators are as follows;

  • Calcium chloride 1.5 – 2.0 %
  • Sodium chloride 2.0 – 2.5%
  • Sea water

If the percentage of these additives is high, they will act as retarders instead of accelerators. Continue reading