Many methods of drilling exist today for different applications. Horizonal drilling is one of the technological marvels in this industry. This method is classified under directional drilling methods and is used in a number of applications where other methods cannot produce the desired results. In this process, the well is horizontally turned to move horizontally at some depth into the ground.
The well is turned horizontally to allow for the extraction of energy sources that are extending horizontally themselves. One common application of this technique is in the extraction of gas in Marcellus Shale Formation. The well has to be drilled vertically up to some point into the ground before it can be turned horizontally. The result of this kind of drilling is a well that is shaped like an exaggerated letter J.
When comparing horizontal and vertical wells, it becomes obvious that horizontal wells can be used for accessing wider rock and natural gas areas. This significantly reduces the number of horizontal wells a company needs for a certain project. This makes the suitability of this process higher.
There are many reasons why companies decide to make use of horizontal wells as opposed to other drilling processes. First, this technique is used when there is need to increase the section length through the reservoir. Thus, the well is drilled at an angle to the reservoir. Secondly, this process is preferred in areas where vertical drilling is not possible. An example of such a scenario is when the oilfield is located below a town.
Accessing oilfields beneath a town requires wells to be drilled at some point far from the town where drilling is feasible. The well starts to be drilled horizontally before it begins to go horizontally toward the oil reservoir. This process is also of great importance where land disturbance has to be minimal and the costs of excavation kept low. Therefore, a single spot is chosen where all wells are drilled and then fanned out in order to access the oilfields located in various places.
The need to employ equipment at multiple points is eliminated by the existence of a central location. Equipment sharing is made possible. Transport costs are lowered while the manpower needed is kept to the minimum. There is also the restriction of environmental disturbance to a single location. This industry aims to minimize environmental pollution and disturbance and this process goes a long way in achieving that goal.
A few shortcomings exist in this method too. Initially, drilling horizontal wells was a much slower process compared to vertical wells. Lengthy surveys had to be made regularly, putting the whole process to a stop. Also, penetration rate was very slow. However, the situation has improved significantly with the invention of better equipment and modern downhole motors.
Another shortcoming results from cost. Horizontal wells are significantly very costly to drill. Drilling at great inclination angles is a very challenging task. Sand influx into wells was also a major problem that has since been solved by better planning and equipment.
The well is turned horizontally to allow for the extraction of energy sources that are extending horizontally themselves. One common application of this technique is in the extraction of gas in Marcellus Shale Formation. The well has to be drilled vertically up to some point into the ground before it can be turned horizontally. The result of this kind of drilling is a well that is shaped like an exaggerated letter J.
When comparing horizontal and vertical wells, it becomes obvious that horizontal wells can be used for accessing wider rock and natural gas areas. This significantly reduces the number of horizontal wells a company needs for a certain project. This makes the suitability of this process higher.
There are many reasons why companies decide to make use of horizontal wells as opposed to other drilling processes. First, this technique is used when there is need to increase the section length through the reservoir. Thus, the well is drilled at an angle to the reservoir. Secondly, this process is preferred in areas where vertical drilling is not possible. An example of such a scenario is when the oilfield is located below a town.
Accessing oilfields beneath a town requires wells to be drilled at some point far from the town where drilling is feasible. The well starts to be drilled horizontally before it begins to go horizontally toward the oil reservoir. This process is also of great importance where land disturbance has to be minimal and the costs of excavation kept low. Therefore, a single spot is chosen where all wells are drilled and then fanned out in order to access the oilfields located in various places.
The need to employ equipment at multiple points is eliminated by the existence of a central location. Equipment sharing is made possible. Transport costs are lowered while the manpower needed is kept to the minimum. There is also the restriction of environmental disturbance to a single location. This industry aims to minimize environmental pollution and disturbance and this process goes a long way in achieving that goal.
A few shortcomings exist in this method too. Initially, drilling horizontal wells was a much slower process compared to vertical wells. Lengthy surveys had to be made regularly, putting the whole process to a stop. Also, penetration rate was very slow. However, the situation has improved significantly with the invention of better equipment and modern downhole motors.
Another shortcoming results from cost. Horizontal wells are significantly very costly to drill. Drilling at great inclination angles is a very challenging task. Sand influx into wells was also a major problem that has since been solved by better planning and equipment.
About the Author:
If you ever have the need for horizonal drilling, the best thing to do is visit the Web and enter the keywords in a search engine. Alternatively, you may go directly to this website at http://www.skinnerhorizontal.com.
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