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7377318 |
Interpretation and design of hydraulic fracturing treatments
Solutions for the propagation of a hydraulic fracture in a permeable elastic rock and driven by injection of a Newtonian fluid. Through scaling, the dependence of the solution on the problem...
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7340384 |
Process for determining the variation in the relative permeability of at least one fluid in a reservoir
A method for determining for a reservoir ( 1 ) containing fluids (W, O), the variation in the relative permeability (krO, krW) of at least one of the fluids, as a function of the saturation of at...
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7337839 |
Fluid loss additive for enhanced fracture clean-up
A hydraulic fracturing method is disclosed that includes designing a fracture treatment including a fluid pumping schedule to fracture a subterranean formation according to a design model that...
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7314082 |
Methods of improving well bore pressure containment integrity
Methods of improving the pressure containment integrity of subterranean well bores are provided. The methods include pumping a fracture sealing composition into the well bore that rapidly converts...
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7302849 |
Method and system for monitoring of fluid-filled domains in a medium based on interface waves propagating along their surfaces
The invention relates to monitoring of fluid-filled domains in various media including, for example, subterranean formations, construction elements, bones. Claimed are a method for determining...
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7185703 |
Downhole completion system and method for completing a well
A system for completing a well having casing ( 34 ) includes a perforating assembly ( 38 ) and a tubing string assembly ( 40 ). The tubing string assembly ( 40 ) including a pair of seal assemblies...
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7181380 |
System and process for optimal selection of hydrocarbon well completion type and design
A process to determine optimal completion type and design prior to drilling of a hydrocarbon producing well utilizing information from hydrocarbon recovery modeling such as reservoir,...
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7171309 |
Downhole tool controller using autocorrelation of command sequences
The present invention provides for an apparatus and method of use to control a downhole tool remotely based on the autocorrelation of command sequences. Repeating signals of a priori unknown or...
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7165616 |
Method of controlling the direction of propagation of injection fractures in permeable formations
The invention relates to a method of controlling the production of oil or gas from a formation ( 1 ) comprising that a first and second drilled production well ( 105, 110 ) are formed next to each...
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7134492 |
Mapping fracture dimensions
Hydraulic fracture dimensions and, optionally, fracture closure pressure and time are determined by adding particulate matter that discharges to create an acoustic signal to the proppant, allowing...
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7111681 |
Interpretation and design of hydraulic fracturing treatments
Solutions for the propagation of a hydraulic fracture in a permeable elastic rock and driven by injection of a Newtonian fluid. Through scaling, the dependence of the solution on the problem...
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7104320 |
Method of optimizing production of gas from subterranean formations
The present invention relates generally to subterranean well construction, and more particularly, to improved methods for producing gas from subterranean formations that include coal seams. The...
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7100688 |
Fracture monitoring using pressure-frequency analysis
Changes occurring downhole during a fracturing process can create or reflect pressure signals. Capturing and evaluating such pressure waves during fracturing enables personnel to monitor, in real...
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7096943 |
Method for growth of a hydraulic fracture along a well bore annulus and creating a permeable well bore annulus
A method for growth of a hydraulic fracture or a tall frac is described wherein the tall frac is disposed next to a well bore using a sandpacked annulus. Also, a method for creating a permeable...
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7086464 |
Well testing system
A well testing system and well testing method is described which can be operated as a closed system with no production of hydrocarbons outside the well or gas can be separated and flared at surface...
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7082993 |
Means and method for assessing the geometry of a subterranean fracture during or after a hydraulic fracturing treatment
A method is given of fracturing a subterranean formation including the step of a) pumping at least one device actively transmitting data that provide information on the device position, and further...
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7069989 |
Method of increasing productivity and recovery of wells in oil and gas fields
A method of increasing productivity and recovery of wells in oil and gas fields includes determining a direction of maximal horizontal stresses, producing at least two wells so that they are spaced...
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7066266 |
Method of treating oil and gas wells
A method of stimulating an entire target formation of an oil or gas well during fluid treatment is obtained by dividing the target formation into intermediate zones and initiating stimulation in...
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7063147 |
Method and apparatus and program storage device for front tracking in hydraulic fracturing simulators
A method and system and program storage device is adapted to continuously update a perimeter of a fracture footprint created in an Earth formation when a fracturing fluid fractures the formation...
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7059405 |
Methods of treating subterranean formations using low-molecular-weight fluids
The present invention relates to systems and methods useful in subterranean treatment operations. Examples of methods of the present invention include methods for fracturing a portion of a...
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7051808 |
Seismic monitoring of in situ conversion in a hydrocarbon containing formation
In an embodiment, a system may be used to heat a hydrocarbon containing formation. The system may include a conduit placed within an opening in the formation. A conductor may be placed within the...
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7032671 |
Method for increasing fracture penetration into target formation
A method of propagating a fracture farther from a well-bore into an oil and/or gas-bearing zone of a target formation while inhibiting growth of the fracture into an adjacent water-bearing zone...
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7032662 |
Method for determining the extent of recovery of materials injected into oil wells or subsurface formations during oil and gas exploration and production
Disclosed is a method of determining the extent of recovery of materials injected into oil wells or subsurface formations. The method includes injection of one or more tracers into an oil well or...
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6994167 |
Method and system for cement lining a wellbore
The invention describes a method of cement lining a wellbore to enable a fixed sensor internal of the lining to sense characteristics of the external formations surrounding the wellbore using, at...
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6987463 |
Method for collecting geological data from a well bore using casing mounted sensors
A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a...
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6981549 |
Hydraulic fracturing method
The present invention relates to methods of designing a hydraulic fracturing treatment in a subterranean reservoir and methods of treatment. Methods of the invention include quantifying reservoir...
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6978832 |
Downhole sensing with fiber in the formation
A portion of at least one fiber is moved from a wellbore into a formation such that the portion is placed to conduct a signal responsive to at least one parameter in the formation. One particular...
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6978831 |
System and method for sensing data in a well during fracturing
A system and method for sensing and recovering data in a well, according to which one or more sensors are located in an area of the well for sensing data associated with the well and transmitting...
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6935424 |
Mitigating risk by using fracture mapping to alter formation fracturing process
A formation fracturing method with which to mitigate risk to hydrocarbon productivity includes pumping fracturing fluid, during at least part of a fracturing job time period, into a well to...
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6929066 |
Method for upward growth of a hydraulic fracture along a well bore sandpacked annulus
A method for outward and upward growth of a hydraulic fracture along a well bore sandpacked annulus and over a selected rock formation interval along a length of a well bore. The fracture is...
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6863128 |
Method of predicting friction pressure drop of proppant-laden slurries using surface pressure data
The present invention relates to a method of determining the proppant friction generated in a fracture of a subterranean formation during a hydraulic fracturing treatment involving injection stages...
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6837310 |
Intelligent perforating well system and method
An instrumented perforating gun and associated methods. One aspect provides a recess for placement of instruments on the perforating gun. Another aspect provides methods for perforating and...
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6834233 |
System and method for stress and stability related measurements in boreholes
A system and method for the measurement of the stresses and pressure perturbations surrounding a well, and a system for computing the optimum location for initiating a hydraulic stress fracture....
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6827144 |
Method for reducing sand production
A method for optimally orienting perforations in a subterranean formation is disclosed, the optimization process being based on establishing the orientation of bedding planes in the formation and,...
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6823950 |
Method for formation pressure control while drilling
A method for addressing the problem known as formation breathing occurring during the drilling of a subsea well in an earth formation in performing a series of leak off tests to determine the earth...
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6795773 |
Well completion method, including integrated approach for fracture optimization
Fracture design for well completion includes determining a conductivity profile for the given reservoir to be fractured. Materials needed to obtain this conductivity profile are selected based on...
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6758271 |
System and technique to improve a well stimulation process
A technique that is usable with a subterranean well includes introducing a fluid into the well in connection with a fluid efficiency test. The technique also includes measuring a temperature versus...
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6749022 |
Fracture stimulation process for carbonate reservoirs
A new process of fracture stimulating a carbonate reservoir in a subterranean formation to stimulate the production of hydrocarbon fluids from the formation is described. During the process, the...
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6747570 |
Method for preventing fracturing of a formation proximal to a casing shoe of well bore during drilling operations
A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a...
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6725926 |
Method of tracking fluids produced from various zones in subterranean wells
Compositions and methods for determining the source of treatment fluids being produced from a production formation having multiple zones by introducing a treatment composition having a tracking...
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6724687 |
Characterizing oil, gasor geothermal wells, including fractures thereof
An excitation event in an oil, gas or geothermal well creates a responsive signal having lower and higher frequency components, which higher frequency component provides information about one or...
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6705398 |
Fracture closure pressure determination
A method for assessing the fracture pressure closure is proposed. This method includes first injecting a fluid into the formation at a first generally constant rate Q to create a fracture, and...
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6443227 |
Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments
A method and apparatus for initiating an azimuth controlled vertical hydraulic fracture in unconsolidated and weakly cemented soils and sediments using active resistivity to monitor and control the...
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6439310 |
Real-time reservoir fracturing process
Methods are disclosed for hydraulic fracturing of subterranean reservoir formations using various combinations of gelled fluid, nitrogen, and carbon dioxide base components, in association with...
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6431278 |
Reducing sand production from a well formation
A method and apparatus for performing sand control using fracturing is described. A curve is defined that correlates the percentage of flow through out-of-phase perforations (those perforations not...
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6364015 |
Method of determining fracture closure pressures in hydraulicfracturing of subterranean formations
The closure pressure (P c ) of a fracture generated in a subterranean formation is determined by creating a fracture in the formation, permitting the fracture to close, and performing post-closure...
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6330914 |
Method and apparatus for tracking hydraulic fractures in unconsolidated and weakly cemented soils and sediments
The invention is a method and apparatus for initiating an azimuth controlled vertical hydraulic fracture in unconsolidated and weakly cemented soils and sediments using active resistivity to...
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6227044 |
Methods and apparatus for detecting torsional vibration in a bottomhole assembly
The invention provides a method of detecting, at the surface, the occurrence of torsional vibration in a bottomhole assembly mounted on the drill string of a rotary drilling system. The method...
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6216786 |
Method for forming a fracture in a viscous oil, subterranean formation
A method for forming a fracture in a viscous oil subterranean formation wherein a data-fracturing operation is carried out to first determine the "leak-off" rate for the formation and then the...
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6186230 |
Completion method for one perforated interval per fracture stage during multi-stage fracturing
This invention provides a method for designing a multiple-stage ball sealer-diverted fracture treatment so that only one set of perforations is fractured by each stage of fluid pumped. It further...
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