US20100147587A1 - Well completion apparatus and methods - Google Patents
Well completion apparatus and methods Download PDFInfo
- Publication number
- US20100147587A1 US20100147587A1 US12/336,490 US33649008A US2010147587A1 US 20100147587 A1 US20100147587 A1 US 20100147587A1 US 33649008 A US33649008 A US 33649008A US 2010147587 A1 US2010147587 A1 US 2010147587A1
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- wellbore
- propellant
- perforating
- condition
- tool
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- 238000000034 method Methods 0.000 title claims description 19
- 239000003380 propellant Substances 0.000 claims abstract description 56
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 33
- 230000004913 activation Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 10
- 230000003213 activating effect Effects 0.000 claims description 8
- 238000005474 detonation Methods 0.000 claims description 6
- 239000004449 solid propellant Substances 0.000 claims description 6
- 238000005755 formation reaction Methods 0.000 description 26
- 239000012530 fluid Substances 0.000 description 7
- 239000002360 explosive Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000004941 influx Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/117—Shaped-charge perforators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/119—Details, e.g. for locating perforating place or direction
- E21B43/1195—Replacement of drilling mud; decrease of undesirable shock waves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
Definitions
- the present application relates in general to wellbore operations and more specifically to methods and apparatus for completing wells and providing fluid communication between the wellbore and the target formations.
- Perforating is a completion operation that provides fluid communication between a subterranean geological formation and a wellbore, which in turn connects the reservoir to the Earth's surface. The goal is to facilitate controlled flow of the fluids between the reservoir formation and the wellbore. Perforating operations are commonly accomplished by running a perforating gun string into the wellbore and firing of explosive charges proximate the desired reservoir formation. The explosive charges deposit significant energy into the reservoir formation within microseconds.
- the perforating event can be detrimental to the formation's localized pore structure (permeability) and, hence, the productivity of the formation.
- the damage to this shock region is typically mitigated by surge flow, wherein the damaged rock is quickly “sucked” into the wellbore.
- the surge flow is operationally achieved by underbalanced perforating, wherein the wellbore pressure is set to be less than the reservoir pressure when the charges are detonated.
- underbalance perforating is not always effective. In some instances, the underbalance pressure differential may not be sufficient to overcome the dynamic overbalance caused by the detonation and burn of the perforating charges. In other cases, the underbalance differential may result in collapse of the perforations and or excess inflow of sand.
- Fracturing of the formation includes pressuring the desired formation zone, hydraulically or by igniting a propellant.
- One embodiment of a wellbore tool includes a perforating charge adapted to create a tunnel in a subterranean formation upon activation; a propellant that provides a pressure cycle when activated; a first delay device operationally connected to the perforating charge to activate the perforating charge; and a second delay device operationally connected to the propellant to activate the propellant in a manner to influence a selected wellbore condition.
- An embodiment of a method of influencing a wellbore pressure cycle during a wellbore operation includes the steps of performing a wellbore operation; activating a propellant in the wellbore; and influencing a selected wellbore condition.
- An embodiment of a method for performing a wellbore perforating operation includes the steps of detonating a perforating gun in a wellbore to create a tunnel in a target formation; activating a propellant; and influencing a selected wellbore condition.
- FIG. 1 is a well schematic illustrating an embodiment of a wellbore tool disposed in a wellbore.
- detonating cord is intended to include a detonating cord, a deflagrating cord, an igniter cord, or any other cord used to initiate the detonation of another explosive having one or more ignition points.
- FIG. 1 is a well schematic illustrating an embodiment of a tool, generally denoted by the numeral 10 , disposed in a wellbore 12 .
- the well may be supported by a casing 14 or other tubular (e.g., liner, conduit, pipe, etc.) or otherwise be an open or uncased well (not shown).
- Tool 10 may disposed in wellbore 12 to a target formation 16 on a conveyance 18 .
- Conveyance 18 may be, for example, a wireline, slick line, tubing (coiled or joint).
- communication for operating tool 10 may be provided through conveyance 12 .
- Tool 10 includes a propellant 20 and a perforating gun 22 having one or more explosive charges 24 .
- Propellant 20 and perforating charges 24 may be connected to a detonating cord 26 .
- a control or delay element 28 may be in operational connection with propellant 20 and/or perforating charges 24 to selectively offset the activation of propellant 20 and perforating charges 24 relative to one another.
- a first delay element 28 a is shown connected with perforating gun 22 , thus perforating charges 24 , and detonation cord 26 .
- a second delay element 28 b is connected with detonating cord 26 and propellant 20 .
- the delay element may be positioned distally from the propellant and/or the perforating gun, for example at the surface.
- delay elements include, without limitation, mechanical, electrical, and pyrotechnic devices such as, but not limit to, timers, fuses, processors and electrical circuits.
- an activation signal may be provided to activate the propellant separate from the activation signal transmitted to the perforating gun. It is noted that signals for activation of charges 24 and/or propellant 20 may be communicated over an electrical conductor, a fiber optic line, a hydraulic control line, mud pulse, wireless transmission and the like.
- Propellant 20 is a pressure generating device.
- Propellant 20 may be, but is not limited to, a material or a device that when activated creates a pressure cycle that may be identified.
- the pressure cycle may be referred to herein as a propellant cycle or propellant pressure cycle to avoid confusion with the perforating charge detonation or the wellbore pressure cycle during the wellbore operation being performed.
- propellant 20 temporarily generates pressure in a known pressure cycle.
- propellant 20 examples include, but are not limited to, materials that burn, materials stored under pressure and released upon activation, materials that undergo a pressure inducing chemical reaction, and mechanical pressure generating devices.
- the pressure cycle represents the high and low pressures over a relevant time period, which in some embodiments may be measured in milliseconds.
- propellant 20 includes a solid propellant material that upon activation or ignition it produces a radial burn that may have a known pressure cycle.
- Illustrated perforating gun 22 includes a plurality of shaped explosive charges 24 to create perforations or tunnels 30 in formation 16 .
- tunnels 30 are provided to create or enhance the fluid communication between wellbore 12 and formation 16 .
- underbalance perforating wherein the pressure in the wellbore at formation 16 is less than the pressure in formation 16 before the perforating charges are detonated.
- a sufficient underbalance differential cannot be established or another pressure environment may be desired.
- Tool 10 may be utilized to control or influence desired wellbore conditions in the wellbore proximate to the target formation 16 during wellbore operations.
- a wellbore operation is a perforating operation. It is noted for purposes of description that perforating operations include a period of time prior to detonation of perforating charges 24 and subsequent to the creation of tunnels 30 .
- Wellbore conditions may include overbalance, underbalance and balanced pressure conditions.
- the wellbore operation is a perforating operation and may include formation fracturing.
- a propellant 20 and perforating charges 24 are disposed in wellbore 12 and positioned proximate to a target subterranean formation 16 .
- Propellant 20 and perforating charges 24 may be positioned proximate to one another.
- Propellant 20 and perforating charges 24 may be carried on the same conveyance 18 . It is noted, that more than one propellant 20 and or perforating gun 22 may be utilized. Further, the separate propellants 20 and perforating guns 22 may be activated at different times from one another.
- a desired wellbore pressure condition or pressure profile for the wellbore operation may be pre-determined.
- Activating perforating gun 22 and detonating perforating charges 24 creates tunnels 30 in formation 16 . It is recognized that detonated perforating charges 24 have a pressure cycle that create dynamic pressure conditions in wellbore 12 .
- Propellant 20 is activated to influence the desired wellbore pressure condition or conditions. A time delay between the activation of propellant 20 and perforating gun 22 may be selected to influence the wellbore pressure conditions to achieve the desired wellbore pressure condition.
- the wellbore condition may include a pressure profile of the wellbore operation.
- Propellant 20 may be activated prior to, simultaneous with, or after the perforating gun is activated.
- propellant 20 may be activated prior to activation of perforating gun 22 so that the pressure low at the end of the propellant pressure cycle corresponds with completion of tunnel 30 . This increases the underbalance differential proximate to the time of completion of tunnels 30 and may promote the influx of fluid and cleaning of tunnels 30 . Further, activation of propellant 20 may be utilized to increase the pressure conditions during creation of tunnels 30 which may provide a fracturing force to formation 16 .
- propellant 20 may be activated relative to activation of charges 24 so that the high pressure of the propellant pressure cycle corresponds with the completion of the formation of tunnels 30 . In this manner the wellbore pressure conditions may minimize damage to tunnels 30 and/or sanding of the well.
- propellant 20 is adapted to provide a propellant pressure profile that includes a relatively slow pressure decline. This may influence wellbore conditions and limit the inflow or pressure drop of the inflow of fluid and minimize formation damage and/or sand influx. In some embodiments, one or more propellants 20 may be activated to limit the rate of decline of the pressure cycle from high to low.
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A wellbore tool includes a perforating charge adapted to create a tunnel in a subterranean formation upon activation; a propellant that provides a pressure cycle when activated; and a delay device operationally connected to the perforating charge and the propellant to activate the perforating charge and the propellant in a manner to influence a selected wellbore condition.
Description
- The present application relates in general to wellbore operations and more specifically to methods and apparatus for completing wells and providing fluid communication between the wellbore and the target formations. BACKGROUND
- Perforating is a completion operation that provides fluid communication between a subterranean geological formation and a wellbore, which in turn connects the reservoir to the Earth's surface. The goal is to facilitate controlled flow of the fluids between the reservoir formation and the wellbore. Perforating operations are commonly accomplished by running a perforating gun string into the wellbore and firing of explosive charges proximate the desired reservoir formation. The explosive charges deposit significant energy into the reservoir formation within microseconds.
- While successfully connecting the reservoir to the wellbore, the perforating event can be detrimental to the formation's localized pore structure (permeability) and, hence, the productivity of the formation. The damage to this shock region is typically mitigated by surge flow, wherein the damaged rock is quickly “sucked” into the wellbore. The surge flow is operationally achieved by underbalanced perforating, wherein the wellbore pressure is set to be less than the reservoir pressure when the charges are detonated. However, underbalance perforating is not always effective. In some instances, the underbalance pressure differential may not be sufficient to overcome the dynamic overbalance caused by the detonation and burn of the perforating charges. In other cases, the underbalance differential may result in collapse of the perforations and or excess inflow of sand.
- In many instances, perforation of the well completion is followed with a formation stimulation operation such as fracturing. Fracturing of the formation includes pressuring the desired formation zone, hydraulically or by igniting a propellant.
- One embodiment of a wellbore tool includes a perforating charge adapted to create a tunnel in a subterranean formation upon activation; a propellant that provides a pressure cycle when activated; a first delay device operationally connected to the perforating charge to activate the perforating charge; and a second delay device operationally connected to the propellant to activate the propellant in a manner to influence a selected wellbore condition.
- An embodiment of a method of influencing a wellbore pressure cycle during a wellbore operation includes the steps of performing a wellbore operation; activating a propellant in the wellbore; and influencing a selected wellbore condition.
- An embodiment of a method for performing a wellbore perforating operation includes the steps of detonating a perforating gun in a wellbore to create a tunnel in a target formation; activating a propellant; and influencing a selected wellbore condition.
- The foregoing has outlined some of the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages will be described hereinafter which form the subject of the claims.
- The foregoing and other features and aspects will be best understood with reference to the following detailed description of a specific embodiment, when read in conjunction with the accompanying drawings, wherein:
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FIG. 1 is a well schematic illustrating an embodiment of a wellbore tool disposed in a wellbore. - Refer now to the drawings wherein depicted elements are not necessarily shown to scale and wherein like or similar elements are designated by the same reference numeral through the several views. In the following description, numerous details are set forth to provide an understanding of the present embodiments. However, it will be understood by those skilled in the art that the present embodiments may be practiced without these details and that numerous variations or modifications from the described embodiments may be possible.
- As used herein, the terms “up” and “down”, “upper” and “lower”, “upwardly” and “downwardly”, “upstream” and “downstream”; “above” and “below”; and other like terms indicating relative positions above or below a given point or element are used in this description to more clearly describe some embodiments of the invention. However, when applied to equipment and methods for use in wells that are deviated or horizontal, such terms may refer to a left to right, right to left, or other relationship as appropriate. Moreover, in the specification and appended claims, the term “detonating cord” is intended to include a detonating cord, a deflagrating cord, an igniter cord, or any other cord used to initiate the detonation of another explosive having one or more ignition points.
-
FIG. 1 is a well schematic illustrating an embodiment of a tool, generally denoted by thenumeral 10, disposed in awellbore 12. The well may be supported by acasing 14 or other tubular (e.g., liner, conduit, pipe, etc.) or otherwise be an open or uncased well (not shown).Tool 10 may disposed inwellbore 12 to atarget formation 16 on aconveyance 18.Conveyance 18 may be, for example, a wireline, slick line, tubing (coiled or joint). In some embodiments, communication foroperating tool 10 may be provided throughconveyance 12. -
Tool 10 includes apropellant 20 and a perforatinggun 22 having one or moreexplosive charges 24.Propellant 20 and perforatingcharges 24 may be connected to a detonatingcord 26. A control or delay element 28 may be in operational connection withpropellant 20 and/or perforatingcharges 24 to selectively offset the activation ofpropellant 20 and perforatingcharges 24 relative to one another. In the illustrated embodiment, afirst delay element 28 a is shown connected withperforating gun 22, thus perforatingcharges 24, anddetonation cord 26. Asecond delay element 28 b is connected with detonatingcord 26 andpropellant 20. In some embodiments, the delay element may be positioned distally from the propellant and/or the perforating gun, for example at the surface. Examples of delay elements include, without limitation, mechanical, electrical, and pyrotechnic devices such as, but not limit to, timers, fuses, processors and electrical circuits. In some embodiments, an activation signal may be provided to activate the propellant separate from the activation signal transmitted to the perforating gun. It is noted that signals for activation ofcharges 24 and/orpropellant 20 may be communicated over an electrical conductor, a fiber optic line, a hydraulic control line, mud pulse, wireless transmission and the like. -
Propellant 20 is a pressure generating device.Propellant 20 may be, but is not limited to, a material or a device that when activated creates a pressure cycle that may be identified. The pressure cycle may be referred to herein as a propellant cycle or propellant pressure cycle to avoid confusion with the perforating charge detonation or the wellbore pressure cycle during the wellbore operation being performed. In some embodiments,propellant 20 temporarily generates pressure in a known pressure cycle. - Examples of
propellant 20 include, but are not limited to, materials that burn, materials stored under pressure and released upon activation, materials that undergo a pressure inducing chemical reaction, and mechanical pressure generating devices. The pressure cycle represents the high and low pressures over a relevant time period, which in some embodiments may be measured in milliseconds. In the illustrated embodiment,propellant 20 includes a solid propellant material that upon activation or ignition it produces a radial burn that may have a known pressure cycle. Some embodiments ofpropellant 20 are disclosed in U.S. Pat. No. 7,431,075, the teachings of which are incorporated herein by reference. - Illustrated perforating
gun 22 includes a plurality of shapedexplosive charges 24 to create perforations or tunnels 30 information 16. As is known in the art, tunnels 30 are provided to create or enhance the fluid communication betweenwellbore 12 andformation 16. In some embodiments it is desired to promote inflow of fluid fromformation 16 upon completion of tunnels 30 to remove debris. This is often accomplished by underbalance perforating; wherein the pressure in the wellbore atformation 16 is less than the pressure information 16 before the perforating charges are detonated. However, at times a sufficient underbalance differential cannot be established or another pressure environment may be desired. For example, and without limitation, it may be desired to increase the underbalance differential at the point of initiating perforating and/or at the completion of the formation of tunnels 30; to decrease the underbalance differential at various time periods of the perforating operation; to provide an overbalance differential or a balance condition at one or more time of the perforation operation. Examples of some embodiments of wellbore pressure cycles and wellbore conditions that may be desired to be achieved during perforating operations are taught in U.S. Pat. No. 7,428,921, assigned to Schlumberger Technology Corporation, and incorporated herein by reference. -
Tool 10 may be utilized to control or influence desired wellbore conditions in the wellbore proximate to thetarget formation 16 during wellbore operations. One embodiment of a wellbore operation is a perforating operation. It is noted for purposes of description that perforating operations include a period of time prior to detonation of perforatingcharges 24 and subsequent to the creation of tunnels 30. Wellbore conditions may include overbalance, underbalance and balanced pressure conditions. - A method for performing a wellbore operation is now described. In this embodiment, the wellbore operation is a perforating operation and may include formation fracturing. A
propellant 20 and perforatingcharges 24 are disposed inwellbore 12 and positioned proximate to a targetsubterranean formation 16.Propellant 20 and perforatingcharges 24 may be positioned proximate to one another.Propellant 20 and perforatingcharges 24 may be carried on thesame conveyance 18. It is noted, that more than onepropellant 20 and or perforatinggun 22 may be utilized. Further, theseparate propellants 20 and perforatingguns 22 may be activated at different times from one another. - In some embodiments, a desired wellbore pressure condition or pressure profile for the wellbore operation may be pre-determined. Activating perforating
gun 22 and detonating perforating charges 24 creates tunnels 30 information 16. It is recognized that detonated perforatingcharges 24 have a pressure cycle that create dynamic pressure conditions inwellbore 12.Propellant 20 is activated to influence the desired wellbore pressure condition or conditions. A time delay between the activation ofpropellant 20 and perforatinggun 22 may be selected to influence the wellbore pressure conditions to achieve the desired wellbore pressure condition. The wellbore condition may include a pressure profile of the wellbore operation.Propellant 20 may be activated prior to, simultaneous with, or after the perforating gun is activated. - In one example,
propellant 20 may be activated prior to activation of perforatinggun 22 so that the pressure low at the end of the propellant pressure cycle corresponds with completion of tunnel 30. This increases the underbalance differential proximate to the time of completion of tunnels 30 and may promote the influx of fluid and cleaning of tunnels 30. Further, activation ofpropellant 20 may be utilized to increase the pressure conditions during creation of tunnels 30 which may provide a fracturing force toformation 16. - In another example,
propellant 20 may be activated relative to activation ofcharges 24 so that the high pressure of the propellant pressure cycle corresponds with the completion of the formation of tunnels 30. In this manner the wellbore pressure conditions may minimize damage to tunnels 30 and/or sanding of the well. - In some embodiments,
propellant 20 is adapted to provide a propellant pressure profile that includes a relatively slow pressure decline. This may influence wellbore conditions and limit the inflow or pressure drop of the inflow of fluid and minimize formation damage and/or sand influx. In some embodiments, one ormore propellants 20 may be activated to limit the rate of decline of the pressure cycle from high to low. - From the foregoing detailed description of specific embodiments, it should be apparent that devices, systems and method for timing a pressure cycle of a propellant to influence a wellbore operation that is novel has been disclosed. Although specific embodiments have been disclosed herein in some detail, this has been done solely for the purposes of describing various features and aspects, and is not intended to be limiting with respect to the scope of the claims. It is contemplated that various substitutions, alterations, and/or modifications, including but not limited to those implementation variations which may have been suggested herein, may be made to the disclosed embodiments without departing from the spirit and scope defined by the appended claims which follow.
Claims (20)
1. A wellbore tool comprising:
a perforating charge adapted to create a tunnel in a subterranean formation upon activation;
a propellant that provides a pressure cycle when activated;
a first delay device operationally connected to the perforating charge to activate the perforating charge; and
a second delay device operationally connected to the propellant to activate the propellant in a manner to influence a selected wellbore condition.
2. The tool of claim 1 , wherein the propellant comprises a solid propellant material.
3. The tool of claim 1 , wherein the wellbore condition is an underbalance condition occurring proximate to the completion of a tunnel formed in a subterranean formation by activation of the perforating charge.
4. The tool of claim 1 , wherein the wellbore condition is a pressure differential between a wellbore pressure and a formation pressure.
5. The tool of claim 4 , wherein the wellbore condition is an underbalance condition occurring proximate to the completion of a tunnel formed in a subterranean formation by activation of the perforating charge.
6. The tool of claim 4 , wherein the wellbore condition is an overbalance condition occurring proximate to the completion of a tunnel formed in a subterranean formation by activation of the perforating charge.
7. The tool of claim 1 , wherein the wellbore condition is selected from a group of underbalance, overbalance, or balanced.
8. The tool of claim 3 , wherein the propellant comprises a solid propellant material.
9. The tool of claim 5 , wherein the propellant comprises a solid propellant material.
10. A method of influencing a wellbore pressure cycle during a wellbore operation, the method comprising the steps of:
performing a wellbore operation;
activating a propellant in the wellbore; and
influencing a selected wellbore condition.
11. The method of claim 10 , wherein the wellbore operation is a perforating operation.
12. The method of claim 10 , wherein the propellant comprises a solid propellant material.
13. The method of claim 10 , where the propellant temporarily provides a pressure cycle.
14. The method of claim 10 , wherein the step of influencing includes the step of correlating a pressure cycle provided by the activated propellant with the wellbore operation.
15. A method for performing a wellbore perforating operation comprising the steps of:
detonating a perforating gun in a wellbore to create a tunnel in a target formation;
activating a propellant; and
influencing a selected wellbore condition.
16. The method of claim 15 , wherein the step of influencing comprises timing the step of activating and the step of detonating relative to one another.
17. The method of claim 15 , wherein the step of activating the propellant is timed relative to the step of detonating the perforating gun to influence a wellbore condition proximate a time of completion of the tunnel.
18. The method of claim 1 5, wherein the wellbore condition is one of underbalance, balanced, or overbalanced
19. The method of claim 15 , wherein the step of activating the propellant is performed prior to detonation of the perforating gun to influence an underbalance condition proximate completion of the tunnel.
20. The method of claim 15 , wherein the propellant is a solid propellant material providing a known pressure cycle.
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US12/336,490 US20100147587A1 (en) | 2008-12-16 | 2008-12-16 | Well completion apparatus and methods |
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US12/336,490 US20100147587A1 (en) | 2008-12-16 | 2008-12-16 | Well completion apparatus and methods |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014168699A3 (en) * | 2013-04-09 | 2014-12-24 | Chevron U.S.A. Inc. | Controlling pressure during perforating operations |
US20150376957A1 (en) * | 2013-05-16 | 2015-12-31 | Halliburton Energy Services, Inc. | Systems and methods for releasing a tool string |
US10337300B2 (en) * | 2014-05-08 | 2019-07-02 | Halliburton Energy Services, Inc. | Method to control energy inside a perforation gun using an endothermic reaction |
US20200217190A1 (en) * | 2017-09-27 | 2020-07-09 | Halliburton Energy Services, Inc. | Passive wellbore monitoring with tracers |
WO2020251606A1 (en) * | 2019-06-13 | 2020-12-17 | Halliburton Energy Services, Inc. | Energetic perforator fill and delay method |
US10883810B2 (en) | 2019-04-24 | 2021-01-05 | Saudi Arabian Oil Company | Subterranean well torpedo system |
US10955264B2 (en) | 2018-01-24 | 2021-03-23 | Saudi Arabian Oil Company | Fiber optic line for monitoring of well operations |
US10995574B2 (en) | 2019-04-24 | 2021-05-04 | Saudi Arabian Oil Company | Subterranean well thrust-propelled torpedo deployment system and method |
US11365958B2 (en) | 2019-04-24 | 2022-06-21 | Saudi Arabian Oil Company | Subterranean well torpedo distributed acoustic sensing system and method |
US20220381140A1 (en) * | 2019-10-18 | 2022-12-01 | Core Laboratories Tools Lp | Perforating and tracer injection system for oilfield applications |
US11566508B2 (en) | 2019-03-04 | 2023-01-31 | Halliburton Energy Services, Inc. | Wellbore perforation analysis and design system |
US11662185B2 (en) | 2013-03-29 | 2023-05-30 | Schlumberger Technology Corporation | Amorphous shaped charge component and manufacture |
US11767739B2 (en) * | 2020-04-30 | 2023-09-26 | Expro Americas, Llc | Perforating gun for oil and gas wells, and system and method for using the same |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160412A (en) * | 1977-06-27 | 1979-07-10 | Thomas A. Edgell | Earth fracturing apparatus |
US4391337A (en) * | 1981-03-27 | 1983-07-05 | Ford Franklin C | High-velocity jet and propellant fracture device for gas and oil well production |
US5355802A (en) * | 1992-11-10 | 1994-10-18 | Schlumberger Technology Corporation | Method and apparatus for perforating and fracturing in a borehole |
US5551344A (en) * | 1992-11-10 | 1996-09-03 | Schlumberger Technology Corporation | Method and apparatus for overbalanced perforating and fracturing in a borehole |
US6598682B2 (en) * | 2000-03-02 | 2003-07-29 | Schlumberger Technology Corp. | Reservoir communication with a wellbore |
US6732798B2 (en) * | 2000-03-02 | 2004-05-11 | Schlumberger Technology Corporation | Controlling transient underbalance in a wellbore |
US20040231840A1 (en) * | 2000-03-02 | 2004-11-25 | Schlumberger Technology Corporation | Controlling Transient Pressure Conditions In A Wellbore |
US6896059B2 (en) * | 1999-07-22 | 2005-05-24 | Schlumberger Technology Corp. | Components and methods for use with explosives |
US7036594B2 (en) * | 2000-03-02 | 2006-05-02 | Schlumberger Technology Corporation | Controlling a pressure transient in a well |
US7243725B2 (en) * | 2004-05-08 | 2007-07-17 | Halliburton Energy Services, Inc. | Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
US20080105430A1 (en) * | 2006-04-25 | 2008-05-08 | Cuthill David A | Method and Apparatus for Perforating a Casing and Producing Hydrocarbons |
US20090084552A1 (en) * | 2007-09-27 | 2009-04-02 | Schlumberger Technology Corporation | Providing dynamic transient pressure conditions to improve perforation characteristics |
US20090084535A1 (en) * | 2007-09-28 | 2009-04-02 | Schlumberger Technology Corporation | Apparatus string for use in a wellbore |
-
2008
- 2008-12-16 US US12/336,490 patent/US20100147587A1/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4160412A (en) * | 1977-06-27 | 1979-07-10 | Thomas A. Edgell | Earth fracturing apparatus |
US4391337A (en) * | 1981-03-27 | 1983-07-05 | Ford Franklin C | High-velocity jet and propellant fracture device for gas and oil well production |
US5355802A (en) * | 1992-11-10 | 1994-10-18 | Schlumberger Technology Corporation | Method and apparatus for perforating and fracturing in a borehole |
US5551344A (en) * | 1992-11-10 | 1996-09-03 | Schlumberger Technology Corporation | Method and apparatus for overbalanced perforating and fracturing in a borehole |
US6896059B2 (en) * | 1999-07-22 | 2005-05-24 | Schlumberger Technology Corp. | Components and methods for use with explosives |
US20040159434A1 (en) * | 2000-03-02 | 2004-08-19 | Johnson Ashley B. | Providing a low pressure condition in a wellbore region |
US6732798B2 (en) * | 2000-03-02 | 2004-05-11 | Schlumberger Technology Corporation | Controlling transient underbalance in a wellbore |
US20040231840A1 (en) * | 2000-03-02 | 2004-11-25 | Schlumberger Technology Corporation | Controlling Transient Pressure Conditions In A Wellbore |
US6598682B2 (en) * | 2000-03-02 | 2003-07-29 | Schlumberger Technology Corp. | Reservoir communication with a wellbore |
US7036594B2 (en) * | 2000-03-02 | 2006-05-02 | Schlumberger Technology Corporation | Controlling a pressure transient in a well |
US7284612B2 (en) * | 2000-03-02 | 2007-10-23 | Schlumberger Technology Corporation | Controlling transient pressure conditions in a wellbore |
US7243725B2 (en) * | 2004-05-08 | 2007-07-17 | Halliburton Energy Services, Inc. | Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
US20080105430A1 (en) * | 2006-04-25 | 2008-05-08 | Cuthill David A | Method and Apparatus for Perforating a Casing and Producing Hydrocarbons |
US20090084552A1 (en) * | 2007-09-27 | 2009-04-02 | Schlumberger Technology Corporation | Providing dynamic transient pressure conditions to improve perforation characteristics |
US20090084535A1 (en) * | 2007-09-28 | 2009-04-02 | Schlumberger Technology Corporation | Apparatus string for use in a wellbore |
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WO2020251606A1 (en) * | 2019-06-13 | 2020-12-17 | Halliburton Energy Services, Inc. | Energetic perforator fill and delay method |
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