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US 4,022,279 AGranted
Formation conditioning process and system
OwnerW. B. Driverinventor
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OwnerW. B. Driverinventor
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According to the invention, a process and system are disclosed for conditioning an oil or gas formation and the application of the various stimulating fluids to the oil or gas formation. The method consists of drilling from a vertical well hole a horizontal spiralling hole which spirals out into the oil or gas formation and around the vertical well hole. Other embodiments include the drilling of a horizontal inward spiralling well from a vertical well hole that inwardly spirals out into the oil or gas formation from the vertical well hole, and the drilling of a hole from a vertical well hole that spirals out and coils down through an oil or gas formation around the vertical well hole. The application of this process is contingent on the use of my remote control directional drilling system, U.S. Pat. No. 3,811,519, and my flexible drill pipe pending application Ser. No. 465,500, filed Apr. 30, 1974 on related equipment, now abandoned.
A process for conditioning and applying stimulating fluids to an oil or gas formation to increase oil or gas production, wherein the process comprises drilling a vertical well hole through an oil or gas formation, drilling one or more horizontal outward spiralling holes at different depths from the vertical well hole that horizontally spirals out into the oil or gas formation and around the vertical well hole, injecting fracturing fluids into the oil or gas formation from the horizontal outward spiralling hole to fracture the oil or gas formation, injecting stimulating fluids into the oil or gas formation from the horizontal outward spiralling hole to induce oil or gas flow to the horizontal outward spiralling hole and to the vertical well hole where said oil or gas is produced.
A well system comprising a vertical well hole drilled through an oil or gas formation, one or more horizontal outward spiralling holes drilled from the vertical well hole that spiral out into the oil or gas formation and around the vertical well hole.
A process for conditioning and applying stimulation fluids to an oil or gas formation to increase oil or gas production, wherein the process comprises, drilling a vertical well hole through an oil or gas formation, drilling one or more spiralling coiling holes at different depths from the vertical well hole that spirals out into and coils down through the oil or gas formation around the vertical well hole, drilling the downhole end of one or more of the spiralling coiling holes to connect to the vertical well hole, injecting fracturing fluids into the oil or gas formation from the spiralling coiling holes to fracture the oil or gas formation, injecting stimulating fluids into the oil or gas formation from the spiralling coiling holes to induce oil or gas flow from the oil or gas formation to the spiralling coiling holes and to the vertical well hole.
A process for conditioning and applying stimulating fluids to an oil or gas formation to increase oil or gas production, wherein the process comprise drilling a vertical well hole through an oil or gas formation, drilling one or more horizontal inward spiralling holes at the same depth and at different depths from the vertical well hole that horizontally inwardly spiral into the oil or gas formation from the vertical well hole, injecting fracturing fluids into the oil or gas formation from the horizontally inward spiralling holes to fracture the oil or gas formation, injecting stimulating fluids into the oil or gas formation from the horizontal inward spiralling holes to induce oil or gas flow from the oil or gas formation to the horizontal inward spiralling holes and the vertical well hole where said oil or gas is produced.
A well system comprising a vertical well hole drilled through an oil or gas formation, one or more horizontal inward spiralling holes drilled at the same depth and at different depths from the vertical well hole that horizontally spiral inwardly out into the oil or gas formation from the vertical well hole.
A well system comprising a vertical well hole drilled through an oil or gas formation, a second vertical well hole drilled through the oil or gas formation near the said vertical well hole, a horizontal inward spiralling hole drilled from the said vertical well hole that horizontally spirals inwardly into the oil or gas formation, a horizontal inward spiralling hole drilled from the second vertical well hole that horizontal spirals inwardly out into the oil or gas formation at the same depths and intermeshes with the horizontal inward spiralling hole drilled from the said vertical well hole.
Dependencies are inferred from the claim text.