Limited entry, multiple fracturing from deviated wellbores
Abstract
This patent describes a limited entry method for inducing simultaneously multiple vertical fractures in a deviated wellbore penetrating a subterranean formation. It comprises: determining a horizontal distance the deviated wellbore must travel to obtain the most effective and efficient recovery of resources from the formation which formation is not required to exhibit a predetermined minimum pressure increase; drilling the deviated wellbore through the formation at an angle of deviation sufficient to achieve the horizontal distance and at an angle of incidence to a preferred fracture orientation sufficient to obtain the most effective and efficient recovery of the resources; casing the deviated wellbore; ascertaining the number and size of holes to be made in the wellbore casing after deciding a fracture treatment fluid to be used, the fluid's pumping rate, and the perforation pressure drop necessary to divert the fluid through all holes at a rate sufficient to simultaneously create multiple vertical fractures in the formation; perforating the wellbore to create holes therein of the ascertained number and size sufficient to create the fractures when flowing a treating fluid therethrough at an ascertained pumping rate; and placing a pressure on the treating fluid in an amount and at a pumping ratemore »
- Inventors:
- Publication Date:
- OSTI Identifier:
- 5404977
- Patent Number(s):
- US 4867241
- Application Number:
- PPN: US 7201650A
- Assignee:
- Mobil Oil Corp., New York, NY
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 1 Jun 1988
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 02 PETROLEUM; 03 NATURAL GAS; NATURAL GAS WELLS; HYDRAULIC FRACTURING; OIL WELLS; ENHANCED RECOVERY; FRACTURING FLUIDS; PERFORATION; PETROLEUM; WELL STIMULATION; COMMINUTION; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FRACTURING; FUELS; RECOVERY; STIMULATION; WELLS; 020300* - Petroleum- Drilling & Production; 030300 - Natural Gas- Drilling, Production, & Processing
Citation Formats
Strubhar, M K. Limited entry, multiple fracturing from deviated wellbores. United States: N. p., 1989.
Web.
Strubhar, M K. Limited entry, multiple fracturing from deviated wellbores. United States.
Strubhar, M K. 1989.
"Limited entry, multiple fracturing from deviated wellbores". United States.
@article{osti_5404977,
title = {Limited entry, multiple fracturing from deviated wellbores},
author = {Strubhar, M K},
abstractNote = {This patent describes a limited entry method for inducing simultaneously multiple vertical fractures in a deviated wellbore penetrating a subterranean formation. It comprises: determining a horizontal distance the deviated wellbore must travel to obtain the most effective and efficient recovery of resources from the formation which formation is not required to exhibit a predetermined minimum pressure increase; drilling the deviated wellbore through the formation at an angle of deviation sufficient to achieve the horizontal distance and at an angle of incidence to a preferred fracture orientation sufficient to obtain the most effective and efficient recovery of the resources; casing the deviated wellbore; ascertaining the number and size of holes to be made in the wellbore casing after deciding a fracture treatment fluid to be used, the fluid's pumping rate, and the perforation pressure drop necessary to divert the fluid through all holes at a rate sufficient to simultaneously create multiple vertical fractures in the formation; perforating the wellbore to create holes therein of the ascertained number and size sufficient to create the fractures when flowing a treating fluid therethrough at an ascertained pumping rate; and placing a pressure on the treating fluid in an amount and at a pumping rate sufficient to create simultaneously multiple vertical fractures in the formation through the holes.},
doi = {},
url = {https://www.osti.gov/biblio/5404977},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 19 00:00:00 EDT 1989},
month = {Tue Sep 19 00:00:00 EDT 1989}
}