Wells – Processes – Specific pattern of plural wells
Reexamination Certificate
2000-01-19
2001-03-27
Dang, Hoang (Department: 3672)
Wells
Processes
Specific pattern of plural wells
C166S250160, C073S152010
Reexamination Certificate
active
06206099
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is generally related to fossil fuel producing well fields, and more particularly to a system and method of mathematically relating two or three producing wells in the field either to locate another existing producing well or to locate a position that will yield another producing well.
2. Description of the Related Art
Presently, there are many oil or natural gas producing fields located around the world. Each of these fields includes a number of producing wells that generate a fossil fuel such as oil or natural gas. The wells are distributed over the area of a given field in what appears to be a haphazard manner.
Each well position is originally located and selected for drilling by searching for oil and natural gas utilizing a number of different methods. One method is to simply look for ground seepage wherein oil or natural gas escapes from the earth through the ground into the atmosphere. Oil seepage can be located by visual inspection. Gas seepage can be traced by sensitive equipment that measures the presence or absence of natural gas in the atmosphere. These methods are known as surface methods. Another method is known as either gravity or magnetic survey wherein small changes in the electromagnetic field or gravitational force of the earth at a given area are measured relative to the surrounding areas. These small changes indicate underground formations that may be conducive to oil or natural gas reservoirs. A third method is commonly known as seismographic exploration that can be utilized to detect smaller and less obvious rock formations and underground traps that can include reservoirs of oil or natural gas that are otherwise not discoverable by the previous less sophisticated methods. Seismic surveying utilizes sound transmitted through the ground to indicate less obvious underground formations that can be conducive to oil or natural gas reservoirs. This procedure is repeated over wide areas to determine the possible locations of pockets or reservoirs of oil and/or natural gas.
Heretofore, there has been no method known to somehow relate each and every oil well that exists in an oil field. There is further no presently known method of relating all existing oil wells in a given field for determining prime locations to drill additional oil wells in the field without resorting to the sophisticated, costly and time consuming methods of locating new well sites
SUMMARY OF THE INVENTION
The present invention for a method to mathematically relate each and every producing well in a given oil field. One object of the present invention is to provide a method of relating each and every oil producing well in a given field without resorting to more sophisticated and time consuming methods of locating one or more producing wells. Another object of the present invention is to provide a method of relating all of the oil producing wells in a given field in a manner that will yield other possible locations for new producing wells within the given field.
To accomplish these and other objects, features and advantages of the present invention, a method of relating producing wells in a given fossil fuel drilling field is provided. In one embodiment, the method includes selecting a first origin well known to be a producing well. Next, a second well is selected that is also known to be a producing well. A distance X is then determined between the first origin well and the second well. A distance Y is then calculated from the first origin well to a third well location and using the equation
Y
2
+X·Y−X
2
=0
Next, the third well location is selected relative to the first origin well and having the distance Y from the first well.
In one embodiment, the fossil fuel produced by the existing drilling field is a petroleum oil product. In another embodiment, the fossil fuel is a natural gas product.
In one embodiment, the distance between the first origin well and the second well is calculated using Universal Transverse Mercator coordinates.
In one embodiment, the third well location is calculated in order to locate an existing well known to be a producing well.
In another embodiment, the third well location is determined in order to locate an area for drilling a new producing well.
In another embodiment of the present invention, a method of relating producing wells in a given fossil fuel drilling field is provided. In this embodiment, the method includes selecting a first and a second well each of which are known to be producing wells. An origin distance X is then determined between the first well and the second well. A third well also known to be a producing well is then selected. A distance Y is then calculated from the third well to a fourth well location and using the equation
Y
2
+X·Y−X
2
=0
Next, the fourth well location is selected relative to the third well and having a distance Y from the third well.
In one embodiment, the fourth well location is a known existing location of a producing well in the fossil fuel drilling field. In another embodiment, the fourth well location is determined for locating an area in which to drill a new producing well in the existing field.
These and other objects, features and advantages of the present invention will become apparent upon a review of the written description and accompanying drawings.
REFERENCES:
patent: 1872906 (1932-08-01), Doherty
patent: 3093190 (1963-06-01), Hoyt
patent: 3524346 (1970-08-01), Schmidt
patent: 3921126 (1975-11-01), Waters
patent: 5388456 (1995-02-01), Kettel
Brochure, “ResGram Spatial Data Analysis”, Author and Date unknown.
Brochure, “Wbgeos-Geostatistics for the Reservoir Engineer and Geoscientist”, Scientific Software—Intercomp, 1994.
Brochure, No Title, The Andrews Group International, 1997 and including 2 sheets regarding Semi-Variogram program.
Dang Hoang
Holland & Knight LLP
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