Abstract A new tool in the industry may offer hope in regaining production from wells hindered by skin damage. A flexible drill string known as the Flex Tool was designed to drill a new well bore from vertical in order to get beyond the immediate perimeter of the well bore into new virgin territory. It can be run directly on the end of a work over string, without a motor, drilling a new well bore away from a kick off point adjacent to the pay at a slant approximately 15 feet from the vertical well bore allowing a new hole possibly horizontal into the target formation. If formation potential exist in this new well bore now beyond shallow well bore damage, it could offer hope for increased or regained production.
With economics in mind, this tool was designed to drill a short radius curvature for an operator seeking affordable alternatives to work over solutions. The ability to obtain a horizontal hole by an affordable means affordable makes the benefit to cost ratio extremely promising in some cases. This definitely put this tool on the list for the new millennium. this country has many older wells in need of work over solution to maintaining or regain production potential. An adjacent slant or horizontal well bore may be a great solution to overcoming the problems of abandonment. An experimental job near Graham, Texas will be discussed.
Introduction A new experimental method known as Flex tool drilling by it owner and inheritor can drill a new well bore directly out from an existing hole in attempts to escape shallow well bore damage. Intended to be an economic benefit for the small operator, it may prove to an alterative to regaining production in paying quantities for wells with chocked perimeter.
If shallow well bore re damage exist then this naturally drilling tool may hold a solution to tr regaining production by passing intermediate sone of damage and reach new area in search if better condition into enhance conditions. Not only it promise for improving production but injection wells may benefit by making anew hole away from a scaled vicinity to improve injections pressure.
New Well Bore Theory. In Theory, hindered wells may be directly related to shallow formation damage. A successful alternative to general practice work over methods may be realized in drilling another well bore from the existing one without the use of expensive and time consuming equipment. A new well bore may tap into prolific areas of the formation at close distance of less the 50' to 70'.
Design and Purpose. The flex tool is a flexible string of drill pipe design to run on the end of the work string (Figure 1). It helps cut a window if needed, dress out a rat hole then guides the bit on a self made short radius of curvature into the target area of pay. A horizontal well bore can built to increase well bore exposure to the formation. This new well bore reaches out from close vicinity without the aid of a mud motor, eliminating some of the expenditure of drilling horizontal. However, the flex tool in conjunction with other tools if desired.
New Well Bore Theory. In Theory, hindered wells may be directly related to shallow formation damage. A successful alternative to general practice work over methods may be realized in drilling another well bore from the existing one without the use of expensive and time consuming equipment. A new well bore may tap into prolific areas of the formation at close distance of less the 50' to 70'.
Design and Purpose. The flex tool is a flexible string of drill pipe design to run on the end of the work string (Figure 1). It helps cut a window if needed, dress out a rat hole then guides the bit on a self made short radius of curvature into the target area of pay. A horizontal well bore can built to increase well bore exposure to the formation. This new well bore reaches out from close vicinity without the aid of a mud motor, eliminating some of the expenditure of drilling horizontal. However, the flex tool in conjunction with other tools if desired.