links for 2010-01-12

links for 2010-01-07

links for 2010-01-05

  • Lucius – 20,000 ft. Jake – 13,500 ft. Good news, but feasible given the completions link below?
  • "We are drilling wells now that we can't complete," said Kevin Lacy, VP of drilling and completion in the Gulf of Mexico for BP. Some of the wells are possible because of high-spec drilling equipment, he noted, but the completions equipment is not yet available. "We're starting to see (conditions) in excess of 15,000psi." Other looming challenges include wells beyond 30,000ft, bottomhole pressures exceeding 20,000psi, temperatures over 250° F, hard-to-reach bottomhole locations, complex sand face completions and complex intervention requirements, Lacy said.

links for 2009-12-11

links for 2009-11-28

links for 2009-11-24

“As for your doctrines I am prepared to go to the Stake if requisite … I trust you will not allow yourself to be in any way disgusted or annoyed by the considerable abuse & misrepresentation which unless I greatly mistake is in store for you … And as to the curs which will bark and yelp – you must recollect that some of your friends at any rate are endowed with an amount of combativeness which (though you have often & justly rebuked it) may stand you in good stead – I am sharpening up my claws and beak in readiness.”
Thomas Henry Huxley (in a letter to Darwin a few days after The Origin of Species dropped)

In honor of the sesquicentennial of the publication of Charles Darwin’s On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life, here are my favorite science links of the day.

links for 2009-10-20

  • "This textbook is intended to introduce engineering graduate students to the essentials of
    modern Continuum Mechanics. This understanding should include an appreciation for the status of the classical theories as special cases of general nonlinear continuum models. The relationship of the classical theories to nonlinear models is essential in light of the increasing reliance, by engineering designers and researchers, on prepackaged computer codes. These codes are based upon models which have a specific and limited range of validity. Given the danger associated with the use of these computer codes in circumstances where the model is not valid, engineers have a need for an in depth understanding of continuum mechanics and the continuum models which can be formulated by use of continuum mechanics techniques."

links for 2009-10-08