whtat are different drilling speed in oil well ?
594819
Well it depends on several things.\n\nIf you mean how fast it chews down through the earth, on a mud rig 60ft or so every hour.  I dont know about air rigs, never worked on one of those.\n\nNow if you mean how fast the bit is actually spining, I'm not sure...I just know it it no fun to change
283982
The answer to how oil is drilled can be found here:
804118
It's the oil flow that causes the operation of the hydraulic cylinder.  The oil, under pressure, causes the piston in the cylinder to move in or out.  No oil flow, no motion.  \n \nPressure gives power.  100 PSI of oil pressure onto a 5 sq. in. piston results in 500 pounds of force from the rod.  \n \nVolume of flow gives speed of motion.  1 cubic inch per second of oil will produce a certain movement by filling the cylinder so fast.  10 cubic inch's per second will produce a motion ten times as fast.
1160164
Depends on the oil :\n\nAs a broad indicator :\n\nLight oil (100SUS / 20 cSt @ 40C)  about 0.820kg/lt\nMedium Oil (500SUS / 300 cSt @ 40C) about 0.850kg/lt\nHeavy Oil (BRIGHTSTOCK / 1000 cSt @ 40C) about 0.900kg/lt\n\nWater around 1kg/lt
60954
It depends on usage. You know that there are two main things in pump, Head and Discharge, and we have a rating curve for these two parameter. If you want to send water to higher elevation, you can send less water (Decrease Discharge) and vise-versa.\n\nin normal case and normal usage, we have some pumps around 2 lit/sec for a very low high to around 2000 lit/sec. Pumps that are used in wells is around 30 to 50 lit/sec.\nBut I advice you to chose apropriate pump by rating curve.\nOne of the largest company in pump industries is KSB. You can find more information in their sites. Below:
866361
CEMENT\nPortland Cement Class G Oil well cements are designed for use in extremely hot environments with high pressures. Their predictable retarder response makes ...\nwww.glaciernw.com/dept.asp?d_id=15247 - 9k - Cached - Similar pages
302438
Mud logging is done on oil and gas wells to better understand the nature of wells that are being produced.  It is done when they are drilling a well, so they are analyzing the drill mud that is coming back up from the well.  The analysis helps them know where they are during drilling and when they've found a spot that is producing.  That is an extremely basic  understanding of mud logging as that's all I know, but look further on the internet to learn more.  Check out the link, it's got good stuff.
1160115
Lubri gel and Ez Gel are trade names for a class of additives used to condition the well bore in oil and gas drilling operations.\nDrilling mud has several properties  DENSITY or Mud Weight being one..FLUID a mixture of water and mud are pumped down to the drill bit to cool the drill bit, clear cuttings from the hole and to help  seal and condition the well bore. Water alone has a weight of 1000kg (m3 cubic meter)  as you go deeper into the earth more fluid weight(hydrostatic pressure) is needed to keep the pressure coming up from below in balance..You add BENTONITE GEL a type of clay to your mixing hopper and send it  to your mudtanks to increase your fluid density and then pump it down hole  it also helps seal thesmall gaps in the bore of your hole to help you retain fluid in the bore..and maintain hydrostatic balance on the gases or fluids downhole. Weight on Weight as opposed to an UNDERBALANCED DRILLING program.\nThere are many different types of additives that are used down hole ranging from INVERT a type of Diesel used in areas where a water based drilling fluid would damage your formation down hole..to SAWDUST  Cellophane and golfballs in extreme cases.\nLubri Gel & EZ Gel are trade names for a Bentonite Clay based drilling mud. Hope this helps
1136335
http://www.ioga.com/Special/crudeoil_Hist.htm\nThat should help.
43324
What takes the place of the oil depends on the drilling methods used.  Since the 1950's, secondary recovery processes such as hydraulic fracturing or waterflooding have been used to force fluids -into- the underground reseroirs of oil, forcing the oil -out- of the ground.  Thus, the fluids take the place of the oil. These secondary extraction processes allow drillers to extract much more oil from a well than was previously possible.\n\nIt's possible that a connection exists between hydrocarbon extraction and earthquakes (called "induced seismicity"), but there is no scientific concensus or proven "cause and effect" correlation between anthropogenic activity and earthquakes.\n\nI hope you can sleep easier now :)
30165
This really depends on what liquid versus what solid you are heating.  Some liquids are actually less heat conductive that solids.\n\nFor example,  if you have some oil and some aluminum then the aluminum is going to heat up faster than the oil would.
387644
The deepest research borehole ever drilled was in Russia, on the Kola peninsula. Over a period of more than a decade a huge rig, built specifically to do this, drilled to over 12 kilometers.  Digging that deep or deeper is _very_ hard as at those depths the pressure exerted by the earth begins to exceed the structural strength of most metals, so the earth actually begins to crush your drill.
711916
Geothermal drilling is a usual drilling with some restricted rules and regulations. Such as equipment specification; location specification and a host of other rules and specifications.
1064334
Drilling Rig , Via Wikipedia\n\nReverse circulation the course of drilling fluid downward through the annulus and upward through the drill stem. Also referred to as “circulating the short way,” since returns from bottom can be obtained more quickly than in normal circulation. Compare normal circulation.
782398
You measure as a percentage of time longer it takes to separate the water out from oil than a control test of half water half oil mix. For example you mix 1 liter oil with 1 liter water (heated to 100oC and thoroughly mixed), then measure the time it takes to separate the water completely from oil. Then separate the oil you wish to calculate. The time taken longer, as a percentate, is the measurement. We do this using a ASTM D1401 machine - look this up on the web for more details.
1124898
It is a complex process, so I will try to hit on the most important factors. \n\nIn past years oil exploration was done based on the observation of oil seeps at the surface. In many areas oil seeps out of the ground naturally, so these were likely places to drill. As geologic understanding grew, geologists realized that certain structures were likely to contain oil. The first geologist going into Saudi Arabia identified drilling sites from the deck of the ship before he even landed. He could see the structures that were likely to contain oil. As the easy finds have been drilled, the process has gotten much more scientifically rigorous. \n\nOften oil exploration starts with an exercise called basin modeling. Geologists look at ancient basins and use available evidence to determine \n1) if there is adequate source rock of sufficient organic content and of the proper organic content to generate oil\n2) if the burial and subsidence history of the basin was such that at some time in the past the source rock was forced to a depth where the temperature and pressure were ideal for petroleum generation \n3) the oil expelled from the source rock had a migration path that allowed it to escape from the source rock\n4) there were traps created by structure (anticlines, synclines, fault blocks, etc) or stratigraphy (variations in rock composition) that existed at the same time as the migration took place \n5) there was a seal on the trap that prevented escape of the oil or gas over the long period of time that the oil resided there\n6) the past heat gradient of the basin was such that the temperature of the source rock reached the ideal temperature range and did not get too hot or stay too cold. \n\nAs you can guess, a good understanding of a basin's geologic history is necessary, including it's deposition, burial, subsidence, uplift, and faulting history. Misunderstanding or incomplete evidence of any one of these factors results in more risk of failure. \n\nThe efficiency of the kitchen (the area where the organic material in the source rock is being 'cooked' into oil) can be evaluated with several different kinds of data. Certain organic compounds known as vitrinite can be examined and can give visual evidence of the maximum temperature they have reached. These samples are taken from well cuttings so the approximate depth of the sample is known. Bottom hole temperatures of existing wells are commonly measured and plotted on maps, as well as the temperature gradient coming up through the well. Apatite fission track analysis is another method for determining the thermal history of a sample and can tell the story of the burial history. \n\nIf there is adequate organic material of the proper makeup and if it can be predicted that it reached a temperature of more than 140 degrees F, then it was likely to generate oil. While it was between 140 F and 320 F it would have been generating oil, and beyond about 200 F, it would have started generating natural gas. If it stayed in the high end of that range long enough, the oil would have changed to natural gas. Beyond about 390 F both oil and natural gas will break down and change to graphite. Understanding this thermal history will lead to predictions about the existence and the potential quantity of oil and gas in a basin. \n\nPressure is also a factor in this process. When the hydrostatic or lithostatic pressure reaches a certain point, oil will begin cracking to form natural gas. Quite often this change can generate what is called overpressure in the reservoir, where the reservoir pressure actually is higher than lithostatic pressure and it can be dangerous for drilling if not anticipated.\n\nOne of the most fascinating parts of this basin modeling process is that different oil reservoirs can be identified by a geochemical signature that can be traced back to the original source rock. Often when working in a basin there is more than one source rock, and more than one possible mig
602681
15w-40 has a cold cranking wieght of 15... (w for winter) and is a 40 weight at operating temp, so it'll flow a little better then the 20w-40. Synthetic oils usually come in a wider range of viscositys like 0w-30, 5w-40 and such. Takes alot... too much volume index improvers and such for conventional, that the oil would go out of grade in no time... different manufacturers have a small difference in wieghts... one may be a high 40 wieght, the other a low 40 weight at operating temp. Just sticking with name brands insure quality.