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 need for turning the well horizontally at a depth is to extract an energy source that is running horizontally itself. This method is commonly used for the extraction of gas from the Marcellus Shale Formation. The wells start to turn horizontally at some depth into the ground. This implies that the well must first be drilled vertically before turning horizontally. This makes the complete well to look like an exaggerated letter J.
A comparison between vertical and horizontal wells show that horizontal wells have the ability to access wider areas of rock and natural gas contained within them. As such, a smaller number of horizontally stretching wells is needed than that of vertical wells. This method is therefore rendered suitable in multiple situations.
Companies choose to employ horizontal wells over other wells for a number of reasons. First, this method helps to increase the section length through a reservoir. This necessitates for drilling wells that are at an angle to intended reservoirs. The second reason why this method may be preferred is when other methods are not viable. For instance, when an oilfield is occurring beneath a town.
To access such oil, the well is drilled at a location outside the town where drilling is viable. A vertical well is drilled before it is turned horizontally to access the oilfield. This process is also preferred in situations where cost needs to be kept low and ensure that minimum disturbance is caused to the land. This is achieved by grouping several wells at one location and then fanning them out underground to access the required oilfields.
The presence of a central locations makes it unnecessary to employ equipment at multiple locations. Equipment can be shared at the central site. Manpower necessary for the task is kept low as are transport costs. Utilization of a central site limits environmental disturbance to that location alone. This process plays a major role in the goal of minimizing environmental pollution and disturbance.
This method has a few shortcomings of its own. First, initially, the process of drilling horizontal wells was very slow compared to that of drilling vertical wells. The process was made slower because regular stops had to be made in order to make some lengthy surveys. The rate of penetration was also considerably very low. However, with the invention of better tools and modern downhole motors, the process has improved significantly.
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 need for turning the well horizontally at a depth is to extract an energy source that is running horizontally itself. This method is commonly used for the extraction of gas from the Marcellus Shale Formation. The wells start to turn horizontally at some depth into the ground. This implies that the well must first be drilled vertically before turning horizontally. This makes the complete well to look like an exaggerated letter J.
A comparison between vertical and horizontal wells show that horizontal wells have the ability to access wider areas of rock and natural gas contained within them. As such, a smaller number of horizontally stretching wells is needed than that of vertical wells. This method is therefore rendered suitable in multiple situations.
Companies choose to employ horizontal wells over other wells for a number of reasons. First, this method helps to increase the section length through a reservoir. This necessitates for drilling wells that are at an angle to intended reservoirs. The second reason why this method may be preferred is when other methods are not viable. For instance, when an oilfield is occurring beneath a town.
To access such oil, the well is drilled at a location outside the town where drilling is viable. A vertical well is drilled before it is turned horizontally to access the oilfield. This process is also preferred in situations where cost needs to be kept low and ensure that minimum disturbance is caused to the land. This is achieved by grouping several wells at one location and then fanning them out underground to access the required oilfields.
The presence of a central locations makes it unnecessary to employ equipment at multiple locations. Equipment can be shared at the central site. Manpower necessary for the task is kept low as are transport costs. Utilization of a central site limits environmental disturbance to that location alone. This process plays a major role in the goal of minimizing environmental pollution and disturbance.
This method has a few shortcomings of its own. First, initially, the process of drilling horizontal wells was very slow compared to that of drilling vertical wells. The process was made slower because regular stops had to be made in order to make some lengthy surveys. The rate of penetration was also considerably very low. However, with the invention of better tools and modern downhole motors, the process has improved significantly.
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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