Does The Same Rig That Drills Down Vertically Go Horizontally On A Frac Drilling

How many wells does a rig drill each month?

The number of wells a rig can drill each month depends on The location ie geology it is drilling The depth If it's offshore or onshore. Whether the well is exploratory or development drilling Just to give you an idea. Exploration well is first well drilled to check if there are hydrocarbons and hence the operator may not have information on geology and the hazards of drilling   An exploration well in deep water well may take 60 days ( near field exploration) in Malaysia or Gulf of Mexico to 180 days or more in ( west Africa Angola etc). This is when the depth is very much similar and so is  geological setting of reservoir rock. However the drilling hazards are different and hence need different well designs. Development wells are the wells drilled to extract oil and gas for production purposes The number of days varies enormously Onshore in America a well is drilled to 5000m depth in a month. In Oman a well is drilled to 4000m in 15 days. Deep water development wells take twice as much time to drill the same depth. However to give a generic idea. The number of days vs the drilling depth varies exponentially for a given region and type of well.

What the difference between drilling gas and oil wells?

Actually, it’s unusual to drill a well that’s either 100% oil or 100% gas. Most oil wells produce at least a little gas and most gas wells produce at least a little oil.There are some practical well control differences between drilling oil and gas wells. A gas kick, an influx of gas into the wellbore is more dangerous and difficult to kill than an oil kick because gas expands to many times its original volume as it migrates up the wellbore. When large amounts of gas are present you might have to route your drilling mud through a degasser to maintain the proper density.In drilling horizontal gas wells in porous formations you might try to keep the wellbore above the fluid contact depth. When drilling oil wells in porous formations you might try to keep the wellbore below the fluid contact depth but, above the oil/water contact depth.Once the well is drilled and cased different production equipment is required, depending on whether the well produces only gas, primarily gas, a mixture of the two, or only oil.

what is the difference between slant, directional and horizontal drilling? Are they the same?

They are all subdivisions of the category of deviated drilling. Any intentionally deviated well is by nature directional no matter the angle from 1 degree to 90 from vertical. Slant is different from horizontal by the matter of the angle from vertical. Slant hole can be any angle from vertical according to the needed offset from the surface location to the target zone. Horizontal is exactly that, horizontal to the surface at a given , mostly fixed, depth. These latter boreholes may vary a few degrees up or down and are usually designed as either toe-up or toe-down, again according to the reason/target of the project.

How long does it take to drill a well?

Your question is kind of like, “How long does it take to drive a car?”The answer depends on how far you’re going, what the course is like, and what the impediments to progress are.I work on the U.S. Gulf Coast. One rule of thumb is that it takes roughly 10 days to reach 10,000 feet. That’s in an environment where the sediments are geologically young and without much rock strength, therefore easily penetrated by a drill bit.You go to Oklahoma an answer will be different. The rocks are older, harder, and ofter folded. It is “crooked hole country”.You go to the deepwater offshore Louisiana and the answer will be different, to, but for different reasons. The first 5,000 feet or so are easy, because that’s how deep the water is. Because of the water depth, rock strength is less so bigger holes must be drilled in anticipation of multiple casing strings. Most of the wells go much deeper, where drilling slows down significantly. The time to drill a well to total depth will range from several weeks to several months.Another measure of the variability involved is “How much does a well cost?”In the U.S. a very shallow well depth, on land, in an area with readily-available services can be drilled for a few hundred thousand dollars. Equipping it for production, if successful, may take a similar investment.In the deepwater, just the cost to drill may be $50- to $150 million. Orders of magnitude different.

How much does it cost to drill and frac a shale gas/oil well?

In the Bakken, for a 18,000 ft horizontal well (10,000 ft vertical + 8,000 ft lateral) after you buy your acreage, it costs roughly $4-6 million to drill, and another $4-6 million to complete (frac + drill out + artificial lift) plus another $500K for surface facilities (tanks, treaters, lact, etc).  So all in, for a company that drills 100 of these wells per year and has their technique and efficiency down to an art, it costs in the range of $8-12 Million per well.  In the Eagle Ford it's around $6-8 Million per well.

How much does it cost to drill a one mile deep well?

How much does it cost to drill a one mile deep well?It depends. In some parts of the country 5,280 feet (1 mile) doesn’t get you below the fresh water table. Therefore, you’ve drilled a water well, not an oil & gas well. Water rigs are significantly cheaper to operate than oil rigs.Assuming a South Texas vertical well with water table (surface casing depth) at 3000 ft. Location preparation, 7 5/8″ surface casing and 4 1/2″ production casing cemented in place. You’re looking at $750,000.This does not include surface facilities, lease, completion, tubing etc. Which in my mind is not part of the drilling process.