The present downturn has made large portions of us question whether the oil industry is dying. The quantity of oil and gas jobs lost amid this downturn is assessed to be between 400,000 – 500,000 around the world. In the meantime the industry faces existential dangers from preservationists, elective energy and electric cars.
Here, we examine what is probably going to happen, and what you ought to do about it.
Change is surrounding us, in truth a large number of the suspicions that we experienced childhood with, that our folks showed us, are turning out to not be valid for us by any means. For instance:
- There are no ‘jobs forever’ any longer, employer stability is a deception.
- Education is being seen less as an early life occasion, and to a greater extent a deep rooted attempt.
- The normal individual is encountering more continuous employment changes, and profession changes as well.
- Technological propels undermine many jobs, and request that we investigate our ability sets and future prospects.
So instead of watching the oil cost, and pondering when the recuperation will begin (for us), we have to search internally, at things that we can control. Some of these things incorporate wellbeing, individual funds, preparing and proceeded with education. Fortunately, we can without much of a stretch discover the data that we require on the web. The conundrum is that these days we have less control of our professional stability, and more control of our lives when all is said in done.
A hefty portion of the more youthful oil and gas specialists are finding the need to take a gander at different businesses, not knowing when they may have the capacity to return. Continue reading
A multilateral well is a well with two or more laterals (horizontal, vertical, or deviated) drilled from a main mother well. This allows one well to produce from several reservoirs. Multilateral wells are suitable for complex geology where drilling more new wells to penetrate to those reservoirs is not economical. Lateral sections may be used to produce from a separated section in depleted, faulted, layered and heavy oil reservoirs.
Figure 1 – Multilateral Well Bashkiria drilled in 1953 (Credit – http://www.drillingcontractor.org)
Figure 2 shows how multilateral wells fit with several geological structures.
Figure 2 – Multilateral well with different geological structure
Petroleum engineering has been developed since the beginning of the 19th Century. The following images demonstrates petroleum technology milestone from 1848 – 1959. This is the first part of this series and more to come.
1848:World’s First Oil Well – Major Aleveev drills the world’s first oil well at Baku, Azerbaijan using a primitive cable-tool drilling technique which originated in ancient China.
There are many oil and gas discoveries which are out of reach of fixed structures for one reason or another. They may be in extremely deep water, or the oil or gas deposit might be too small or too widely spread to warrant the high cost of building a fixed structure. In these cases, seabed-completed wells may be connected to a floating platform moored above the field, using a production marine riser. The limiting conditions for fixed installations are not clearly defined, and they have been used in some cases for depths of over 250 meters, although this is in a benign environment. Floating platforms can also be used as the basis for an Early Production System (EPS), in which the appraisal wells drilled from a floating drilling vessel are completed at the seabed and produced to a floating platform carrying the required process plant and other facilities. This allows production to begin and create income whilst a fixed platform is being designed and installed for full field development. In this article, there are some discussions about three main types of floating offshore structures which are Tension Leg Platforms, SPAR and FPSO.
Tension Leg Platforms (Tethered Buoyant Structures)
One more form of offshore platform is what is known as the Tension Leg Platform, or Tethered Buoyant Structure. This method is intended for oil and gas production from water depths of over 500 meters. The platform works in much the same way as a taut moored buoy, which is anchored to the seabed using a vertical wire. The Tethered Buoyant Structure is basically a large, semi-submersible floating vessel, which uses a heavy gravity anchor to moor it to the seabed. Tension force is maintained in these vertical cables by adjusting the buoyancy of the floating platform, to ensure positive tension at all times. This method reduced marine response in the platform to effectively zero in vertical terms, and very little in horizontal terms. Horizontal drift can be further reduced as necessary. By using buoyance against a tension mooring system, this allows the use of a semi-submersible floating platform which can carry an additional load, balancing this out by increasing the buoyancy.
This type of structure is still under development, and there are still many problem points to iron out. How widespread it will become in the future is largely dependent on solving these issues, along with a thorough economic assessment comparing the system to other available ones.
Figure 1 – Tension Leg Platform
We’ve discussed about two type of fixed platform structures which are piled offshore platforms and concrete gravity structures. In this article, it summarize the comparison between these two fixed offshore structures.
Figure 1 – Piled Structure and Gravity Structure of Brent (Courtesy of Shell UK)