US20130292174A1 - Composite liners for perforators - Google Patents
Composite liners for perforators Download PDFInfo
- Publication number
- US20130292174A1 US20130292174A1 US13/463,165 US201213463165A US2013292174A1 US 20130292174 A1 US20130292174 A1 US 20130292174A1 US 201213463165 A US201213463165 A US 201213463165A US 2013292174 A1 US2013292174 A1 US 2013292174A1
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- United States
- Prior art keywords
- liner
- perforating
- charge
- perforating gun
- gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Definitions
- the invention relates generally to a method and system for perforating a wellbore. More specifically, the present invention relates to a liner for a shaped charge having inner and outer layers.
- Perforating systems are used for the purpose, among others, of making hydraulic communication passages, called perforations, in wellbores drilled through earth formations so that predetermined zones of the earth formations can be hydraulically connected to the wellbore.
- Perforations are needed because wellbores are typically lined with a string of casing and cement is generally pumped into the annular space between the wellbore wall and the casing.
- Reasons for cementing the casing against the wellbore wall includes retaining the casing in the wellbore and hydraulically isolating various earth formations penetrated by the wellbore.
- an inner casing string is included that is circumscribed by the casing. Without the perforations oil/gas from the formation surrounding the wellbore cannot make its way to production tubing inserted into the wellbore within the casing.
- Perforating systems typically include one or more perforating guns connected together in series to form a perforating gun string, which can sometimes surpass a thousand feet of perforating length.
- the gun strings are usually lowered into a wellbore on a wireline or tubing, where the individual perforating guns are generally coupled together by connector subs.
- Included with the perforating gun are shaped charges that typically include a housing, a liner, and a quantity of high explosive inserted between the liner and the housing.
- each shaped charge is typically attached to a detonation cord that runs axially within each of the guns.
- a perforating gun that includes a gun body and a shaped charge in the gun body.
- the shaped charge is made up of a charge case and a liner in the charge case, where the liner has an inner layer and an outer layer made of a material with a lower density and that is more ductile than a material in the inner layer.
- the inner layer includes tungsten and the outer layer includes aluminum.
- the liner is frustoconically shaped.
- the inner and outer layers may be formed by cold pressing metal particles.
- a plurality of shaped charges may be included with the perforating gun, where a detonation cord couples with each of the shaped charges.
- the perforating gun is explosive in the charge case underneath the liner, wherein detonating the explosive inverts and discharges the liner from the charge case to form an elongate metal jet having a generally curved outer lateral periphery, wherein the jet perforates the gun body and deposits a slug on an inner surface of the gun body that blocks a flow of debris from inside of the gun body.
- the slug is formed substantially from material making up the inner layer.
- a perforating system where the system includes an annular perforating gun selectively inserted within a wellbore and a shaped charge in the perforating gun.
- the shaped charge is made up of a charge case having an opening and a substantially curved outer periphery adjacent the opening, and a frustoconically shaped liner inserted into the opening of the charge case that is made up of an inner layer having an outer surface covered by an outer layer that is more ductile than the inner layer.
- the perforating system further includes an explosive in the charge case under the liner.
- the inner layer can optionally be made from tungsten cold pressed into shape.
- the outer layer can optionally be made from aluminum that is cold pressed into shape.
- the method includes providing a perforating gun with a shaped charge made from a charge case, a liner in the charge case that has an inner layer and a ductile lower density outer layer, and an explosive in the charge case under the liner.
- the method further includes disposing the shaped charge in the wellbore and detonating the explosive to create an explosion that inverts the liner and expels the liner from the charge case to form a metal jet that perforates a sidewall of the perforating gun and deposits a slug on an inner surface of the perforating gun that restricts debris from exiting the perforating gun.
- the inner layer can include tungsten particles and softer metal particles that are cold pressed into a frustoconical shape.
- the outer layer includes aluminum particles that are cold pressed into a frustoconical shape.
- FIG. 1 is a side sectional view of an example embodiment of a shaped charge in accordance with the present invention.
- FIG. 2 is a side sectional view of the shaped charge of FIG. 1 in a perforating gun in accordance with the present invention.
- FIG. 3 is a side sectional view of an example embodiment of a perforating system having the perforating gun of FIG. 2 and disposed in a wellbore in accordance with the present invention.
- FIG. 4 is a side sectional view of an example embodiment of the perforating gun of FIG. 2 while the shaped charges are detonating in accordance with the present invention.
- FIG. 5 is a side sectional view of an example embodiment of the perforating gun of FIG. 2 after the shaped charges have detonated and in accordance with the present invention.
- FIG. 1 shows in a side sectional view one example embodiment of a shaped charge 10 for use in downhole perforating operations.
- the shaped charge 10 includes a shaped charge case 12 , wherein a forward portion of the outer periphery of the case 12 is substantially cylindrical that has an opening 13 on one end. The end of the cylindrical portion away from the opening 13 transitions into a frustoconical shape, whose radius diminishes with distance away from the opening 13 . Further in the example of FIG. 1 , a cavity 14 is formed within the case 12 that extends from the opening 13 , through the cylindrical portion, and into the frustoconical portion.
- a frustoconical liner 16 is shown set in the cavity 14 , also having a cavity and opening, wherein the opening of the liner 16 substantially aligns with the opening 13 in the case 12 and where a closed end of the liner 16 is directed away from the opening 13 .
- High explosive 18 fills the portion of the cavity 14 between the liner 16 and the walls of the cavity 14 .
- a detonating cord 20 for initiating detonation of the explosive 18 .
- a shock wave propagates along the length of the detonating cord 20 that initiates detonation of a booster 22 .
- the booster 22 is an amount of explosive disposed in a passage 23 axially formed through the rear 19 of the case 12 between the detonating cord 20 and a rear wall of the cavity 14 .
- the liner 16 is shown made up of multiple layers, which in the example of FIG. 1 include an inner layer 24 is on a side of the liner 16 opposite the high explosive; and an outer layer 26 that covers the outer surface of the inner layer 24 and has an outer surface in contact with the high explosive 18 .
- FIG. 2 shows in side sectional view one example of a perforating gun 28 with embodiments of the shaped charges 10 set in an a perforating gun body 30 .
- the shaped charges 10 are shown “phased,” that is having their respective openings 13 directed radially outward at various angles with respect to an axis A x of the body 30 of the perforating gun 28 .
- the body 30 is a substantially annular member in which the shaped charges 10 are spaced in an axial direction within the sidewalls of the body 30 .
- the detonating cord 20 extends within the body 30 and into contact with each of the shaped charges 10 .
- FIG. 3 depicts in a side sectional view examples of shaped charges 10 incorporated into a perforating system 34 .
- multiple perforating guns 28 are mounted end to end to form a perforating string 36 shown suspended on a wireline 38 .
- the wireline 38 extends from a surface truck 40 , from which control commands to the perforating string 36 may be transmitted through the wireline 38 .
- the wireline 38 also provides a means for raising and lowering the perforating string 36 . From the surface truck 40 , the wireline 38 threads through a wellhead assembly 42 and into a borehole 44 shown under the wellhead assembly to suspend the perforating string 36 therein.
- FIG. 3 depicts in a side sectional view examples of shaped charges 10 incorporated into a perforating system 34 .
- multiple perforating guns 28 are mounted end to end to form a perforating string 36 shown suspended on a wireline 38 .
- the wireline 38 extends from a surface truck 40 , from which control commands to the per
- the shaped charges 10 are being initiated and the ensuing detonations form perforations 46 in the formation 48 that surrounds the borehole 44 .
- the phasing of the shape charges 10 provides for perforations 46 to be disposed at multiple angular locations around the borehole 44 .
- detonating the explosive 18 not only expels the liner 16 from within the charge case 12 but also inverts the liner 16 and forms metal jets 50 shown exiting the charge cases 12 and forming openings 52 through side walls of the gun body 30 .
- the outer layer 26 of the liner 16 is made from a material that is more ductile and less dense than the inner layer 24 .
- An advantage of a ductile less dense outer layer 26 is that slugs 54 may be deposited on the inner surface of the gun body 30 and adjacent the openings 52 . The slugs 54 can extend over the opening 52 to restrict or block debris from flowing from the gun body 30 during and subsequent to the step of perforating.
- an advantage in addition to the enhanced performance realized by having liner 16 with two or more layers is the reduced amount of debris left in a wellbore during a step of perforating.
- Example materials for the outer layer 26 include aluminum, copper, silver, gold, nickel, combinations thereof, and other ductile materials.
- Example materials for the inner layer 24 include tungsten, tungsten alloys, and other materials less ductile than the outer layer 26 .
- the inner and outer layers 24 , 26 are formed separately using a ram and die process, wherein metal particles are deposited within a die and a correspondingly shaped ram is inserted into the die under pressure while rotating to cold form each of the layers 24 , 26 .
- the ram and die arrangement may also be used for forming the composite liner 16 , wherein the outer layer 26 is placed in the die, and the inner layer 24 is on the ram portion of the tooling.
- the stresses employed by the ram and die assembly during fabrication of each specific layer are about 50% of that used in forming a typical cold form liner having a single layer.
- the stresses involved in forming the composite layer 16 when combining the inner and outer layers 24 , 26 are about 85% of that employed while forming a currently known single layer liner.
- Advantages of using the less dense more ductile outer layer 26 include a weight savings of the shape charge 10 over a liner having a single layer totally formed from a higher density material. Moreover, the weight savings is not offset by a reduction in performance, in contrast, performance is enhanced by use of the composite layer liner 16 described herein.
- the thickness of each of the inner layer and outer layer 24 , 26 is about one millimeter by making the total thickness of a liner to be about 2 millimeters, which is comparable to most liners currently in use.
Abstract
A shaped charge having a charge case and liner with an outer layer and an inner layer. The liner is a generally hollow frustoconically shaped member with an open end and a closed end, where the closed end of the liner inserts into an opening in the charge case. An explosive is provided between the liner and the charge case. The inner layer of the liner includes a higher density material than material used for forming the outer layer.
Description
- 1. Field of Invention
- The invention relates generally to a method and system for perforating a wellbore. More specifically, the present invention relates to a liner for a shaped charge having inner and outer layers.
- 2. Description of Prior Art
- Perforating systems are used for the purpose, among others, of making hydraulic communication passages, called perforations, in wellbores drilled through earth formations so that predetermined zones of the earth formations can be hydraulically connected to the wellbore. Perforations are needed because wellbores are typically lined with a string of casing and cement is generally pumped into the annular space between the wellbore wall and the casing. Reasons for cementing the casing against the wellbore wall includes retaining the casing in the wellbore and hydraulically isolating various earth formations penetrated by the wellbore. Sometimes an inner casing string is included that is circumscribed by the casing. Without the perforations oil/gas from the formation surrounding the wellbore cannot make its way to production tubing inserted into the wellbore within the casing.
- Perforating systems typically include one or more perforating guns connected together in series to form a perforating gun string, which can sometimes surpass a thousand feet of perforating length. The gun strings are usually lowered into a wellbore on a wireline or tubing, where the individual perforating guns are generally coupled together by connector subs. Included with the perforating gun are shaped charges that typically include a housing, a liner, and a quantity of high explosive inserted between the liner and the housing. When the high explosive is detonated, the force of the detonation collapses the liner and ejects it from one end of the charge at very high velocity in a pattern called a jet that perforates the casing and the cement and creates a perforation that extends into the surrounding formation. Each shaped charge is typically attached to a detonation cord that runs axially within each of the guns.
- Disclosed herein is an example of a perforating gun that includes a gun body and a shaped charge in the gun body. In this example the shaped charge is made up of a charge case and a liner in the charge case, where the liner has an inner layer and an outer layer made of a material with a lower density and that is more ductile than a material in the inner layer. In one example, the inner layer includes tungsten and the outer layer includes aluminum. In one embodiment, the liner is frustoconically shaped. The inner and outer layers may be formed by cold pressing metal particles. A plurality of shaped charges may be included with the perforating gun, where a detonation cord couples with each of the shaped charges. In one example, further provided with the perforating gun is explosive in the charge case underneath the liner, wherein detonating the explosive inverts and discharges the liner from the charge case to form an elongate metal jet having a generally curved outer lateral periphery, wherein the jet perforates the gun body and deposits a slug on an inner surface of the gun body that blocks a flow of debris from inside of the gun body. In one example embodiment, the slug is formed substantially from material making up the inner layer.
- Also provided herein is a perforating system, where the system includes an annular perforating gun selectively inserted within a wellbore and a shaped charge in the perforating gun. In this example the shaped charge is made up of a charge case having an opening and a substantially curved outer periphery adjacent the opening, and a frustoconically shaped liner inserted into the opening of the charge case that is made up of an inner layer having an outer surface covered by an outer layer that is more ductile than the inner layer. In one example, the perforating system further includes an explosive in the charge case under the liner. The inner layer can optionally be made from tungsten cold pressed into shape. The outer layer can optionally be made from aluminum that is cold pressed into shape.
- Further disclosed herein is a method of reducing debris from being discharged from a perforating gun while perforating a wellbore. In one example the method includes providing a perforating gun with a shaped charge made from a charge case, a liner in the charge case that has an inner layer and a ductile lower density outer layer, and an explosive in the charge case under the liner. The method further includes disposing the shaped charge in the wellbore and detonating the explosive to create an explosion that inverts the liner and expels the liner from the charge case to form a metal jet that perforates a sidewall of the perforating gun and deposits a slug on an inner surface of the perforating gun that restricts debris from exiting the perforating gun. The inner layer can include tungsten particles and softer metal particles that are cold pressed into a frustoconical shape. Optionally, the outer layer includes aluminum particles that are cold pressed into a frustoconical shape.
- Some of the features and benefits of the present invention having been stated, others will become apparent as the description proceeds when taken in conjunction with the accompanying drawings, in which:
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FIG. 1 is a side sectional view of an example embodiment of a shaped charge in accordance with the present invention. -
FIG. 2 is a side sectional view of the shaped charge ofFIG. 1 in a perforating gun in accordance with the present invention. -
FIG. 3 is a side sectional view of an example embodiment of a perforating system having the perforating gun ofFIG. 2 and disposed in a wellbore in accordance with the present invention. -
FIG. 4 is a side sectional view of an example embodiment of the perforating gun ofFIG. 2 while the shaped charges are detonating in accordance with the present invention. -
FIG. 5 is a side sectional view of an example embodiment of the perforating gun ofFIG. 2 after the shaped charges have detonated and in accordance with the present invention. - While the invention will be described in connection with the preferred embodiments, it will be understood that it is not intended to limit the invention to that embodiment. On the contrary, it is intended to cover all alternatives, modifications, and equivalents, as may be included within the spirit and scope of the invention as defined by the appended claims.
- The method and system of the present disclosure will now be described more fully hereinafter with reference to the accompanying drawings in which embodiments are shown. The method and system of the present disclosure may be in many different forms and should not be construed as limited to the illustrated embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey its scope to those skilled in the art. Like numbers refer to like elements throughout.
- It is to be further understood that the scope of the present disclosure is not limited to the exact details of construction, operation, exact materials, or embodiments shown and described, as modifications and equivalents will be apparent to one skilled in the art. In the drawings and specification, there have been disclosed illustrative embodiments and, although specific terms are employed, they are used in a generic and descriptive sense only and not for the purpose of limitation. Accordingly, the improvements herein described are therefore to be limited only by the scope of the appended claims.
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FIG. 1 shows in a side sectional view one example embodiment of ashaped charge 10 for use in downhole perforating operations. Theshaped charge 10 includes ashaped charge case 12, wherein a forward portion of the outer periphery of thecase 12 is substantially cylindrical that has anopening 13 on one end. The end of the cylindrical portion away from the opening 13 transitions into a frustoconical shape, whose radius diminishes with distance away from theopening 13. Further in the example ofFIG. 1 , acavity 14 is formed within thecase 12 that extends from theopening 13, through the cylindrical portion, and into the frustoconical portion. Afrustoconical liner 16 is shown set in thecavity 14, also having a cavity and opening, wherein the opening of theliner 16 substantially aligns with theopening 13 in thecase 12 and where a closed end of theliner 16 is directed away from theopening 13. High explosive 18 fills the portion of thecavity 14 between theliner 16 and the walls of thecavity 14. On a rear 19 of thecase 12 opposite the opening 13, shown is a detonatingcord 20 for initiating detonation of the explosive 18. As is known, a shock wave propagates along the length of the detonatingcord 20 that initiates detonation of abooster 22. In the example ofFIG. 1 , thebooster 22 is an amount of explosive disposed in apassage 23 axially formed through the rear 19 of thecase 12 between the detonatingcord 20 and a rear wall of thecavity 14. Theliner 16 is shown made up of multiple layers, which in the example ofFIG. 1 include an inner layer 24 is on a side of theliner 16 opposite the high explosive; and anouter layer 26 that covers the outer surface of the inner layer 24 and has an outer surface in contact with the high explosive 18. -
FIG. 2 shows in side sectional view one example of aperforating gun 28 with embodiments of theshaped charges 10 set in an a perforatinggun body 30. In the example ofFIG. 2 , theshaped charges 10 are shown “phased,” that is having theirrespective openings 13 directed radially outward at various angles with respect to an axis Ax of thebody 30 of theperforating gun 28. In the example ofFIG. 2 , thebody 30 is a substantially annular member in which theshaped charges 10 are spaced in an axial direction within the sidewalls of thebody 30. The detonatingcord 20 extends within thebody 30 and into contact with each of the shapedcharges 10. -
FIG. 3 depicts in a side sectional view examples ofshaped charges 10 incorporated into a perforating system 34. In this example, multiple perforatingguns 28 are mounted end to end to form a perforatingstring 36 shown suspended on awireline 38. Thewireline 38 extends from asurface truck 40, from which control commands to the perforatingstring 36 may be transmitted through thewireline 38. Thewireline 38 also provides a means for raising and lowering the perforatingstring 36. From thesurface truck 40, thewireline 38 threads through awellhead assembly 42 and into a borehole 44 shown under the wellhead assembly to suspend the perforatingstring 36 therein. In the example ofFIG. 3 , the shapedcharges 10 are being initiated and the ensuing detonations formperforations 46 in theformation 48 that surrounds the borehole 44. The phasing of the shape charges 10 provides forperforations 46 to be disposed at multiple angular locations around the borehole 44. As is known, detonating the explosive 18 not only expels theliner 16 from within thecharge case 12 but also inverts theliner 16 and formsmetal jets 50 shown exiting thecharge cases 12 and formingopenings 52 through side walls of thegun body 30. - Referring now to
FIG. 5 , shown is one example of a perforatinggun 28 at a time after thejets 50 have exited the side wall of thegun body 30. In one example, theouter layer 26 of theliner 16 is made from a material that is more ductile and less dense than the inner layer 24. An advantage of a ductile less denseouter layer 26 is thatslugs 54 may be deposited on the inner surface of thegun body 30 and adjacent theopenings 52. Theslugs 54 can extend over theopening 52 to restrict or block debris from flowing from thegun body 30 during and subsequent to the step of perforating. As such, an advantage in addition to the enhanced performance realized by havingliner 16 with two or more layers is the reduced amount of debris left in a wellbore during a step of perforating. - Example materials for the
outer layer 26 include aluminum, copper, silver, gold, nickel, combinations thereof, and other ductile materials. Example materials for the inner layer 24 include tungsten, tungsten alloys, and other materials less ductile than theouter layer 26. In one example, the inner andouter layers 24, 26 are formed separately using a ram and die process, wherein metal particles are deposited within a die and a correspondingly shaped ram is inserted into the die under pressure while rotating to cold form each of thelayers 24, 26. The ram and die arrangement may also be used for forming thecomposite liner 16, wherein theouter layer 26 is placed in the die, and the inner layer 24 is on the ram portion of the tooling. - In one example, the stresses employed by the ram and die assembly during fabrication of each specific layer are about 50% of that used in forming a typical cold form liner having a single layer. In one example, the stresses involved in forming the
composite layer 16 when combining the inner andouter layers 24, 26 are about 85% of that employed while forming a currently known single layer liner. Advantages of using the less dense more ductileouter layer 26 include a weight savings of theshape charge 10 over a liner having a single layer totally formed from a higher density material. Moreover, the weight savings is not offset by a reduction in performance, in contrast, performance is enhanced by use of thecomposite layer liner 16 described herein. In another example, the thickness of each of the inner layer andouter layer 24, 26 is about one millimeter by making the total thickness of a liner to be about 2 millimeters, which is comparable to most liners currently in use. - The present invention described herein, therefore, is well adapted to carry out the objects and attain the ends and advantages mentioned, as well as others inherent therein. While a presently preferred embodiment of the invention has been given for purposes of disclosure, numerous changes exist in the details of procedures for accomplishing the desired results. For example, instead of wireline, the perforating string can be deployed on tubing, slickline, or any other currently known or later developed conveyance means. These and other similar modifications will readily suggest themselves to those skilled in the art, and are intended to be encompassed within the spirit of the present invention disclosed herein and the scope of the appended claims.
Claims (14)
1. A perforating gun comprising:
a gun body;
a shaped charge in the gun body comprising,
a charge case,
a liner in the charge case having an inner layer and an outer layer made of a material with a lower density and that is more ductile than a material in the inner layer.
2. The perforating gun of claim 1 , wherein the inner layer comprises tungsten and the outer layer comprises aluminum.
3. The perforating gun of claim 1 , wherein the liner is frustoconically shaped.
4. The perforating gun of claim 1 , wherein the inner and outer layers comprise cold pressed metal particles.
5. The perforating gun of claim 1 , further comprising a plurality of shaped charges and a detonation cord coupled with each of the shaped charges.
6. The perforating gun of claim 1 , further comprising explosive in the charge case and underneath the liner, wherein detonating the explosive inverts and discharges the liner from the charge case to form an elongate metal jet having a generally curved outer lateral periphery, wherein the jet perforates the gun body and deposits a slug on an inner surface of the gun body that blocks a flow of debris from inside of the gun body.
7. The perforating gun of claim 6 , wherein the slug is formed substantially from material making up the outer layer.
8. A perforating system comprising:
an annular perforating gun selectively inserted within a wellbore;
a shaped charge in the perforating gun comprising,
a charge case having an opening and a substantially curved outer periphery adjacent the opening,
a frustoconically shaped liner inserted into the opening of the charge case that is made up of an inner layer having an outer surface covered by an outer layer that is more ductile than the inner layer.
9. The perforating system of claim 8 , further comprising an explosive in the charge case under the liner.
10. The perforating system of claim 8 , wherein the inner layer comprises tungsten cold pressed into shape.
11. The perforating system of claim 8 , wherein the outer layer comprises aluminum cold pressed into shape.
12. A method of reducing debris created while perforating a wellbore comprising:
providing a perforating gun with a shaped charge that comprises, a charge case, a liner in the charge case that has an inner layer and a ductile outer layer, and an explosive in the charge case under the liner;
disposing the shaped charge in the wellbore; and
detonating the explosive to create an explosion that inverts the liner and expels the liner from the charge case to form a metal jet that perforates a sidewall of the perforating gun and deposits a slug on an inner surface of the perforating gun that restricts debris from exiting the perforating gun.
13. The method of claim 12 , wherein the inner layer comprises tungsten particles and softer metal particles that are cold pressed into a frustoconical shape.
14. The method of claim 12 , wherein the outer layer comprises aluminum particles that are cold pressed into a frustoconical shape.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US13/463,165 US20130292174A1 (en) | 2012-05-03 | 2012-05-03 | Composite liners for perforators |
GB1421380.5A GB2521527A (en) | 2012-05-03 | 2013-03-01 | Composite liners for perforators |
BR112014026642A BR112014026642A2 (en) | 2012-05-03 | 2013-03-01 | composite end caps for drills |
PCT/US2013/028506 WO2013165539A1 (en) | 2012-05-03 | 2013-03-01 | Composite liners for perforators |
NO20141186A NO20141186A1 (en) | 2012-05-03 | 2014-10-03 | Compound linings for perforators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US13/463,165 US20130292174A1 (en) | 2012-05-03 | 2012-05-03 | Composite liners for perforators |
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US20130292174A1 true US20130292174A1 (en) | 2013-11-07 |
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US13/463,165 Abandoned US20130292174A1 (en) | 2012-05-03 | 2012-05-03 | Composite liners for perforators |
Country Status (5)
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US (1) | US20130292174A1 (en) |
BR (1) | BR112014026642A2 (en) |
GB (1) | GB2521527A (en) |
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US9233491B2 (en) | 2012-05-01 | 2016-01-12 | Johnson & Johnson Consumer Inc. | Machine for production of solid dosage forms |
US20190316455A1 (en) * | 2016-08-19 | 2019-10-17 | Halliburton Energy Services, Inc. | Utilizing electrically actuated explosives downhole |
US10493026B2 (en) | 2017-03-20 | 2019-12-03 | Johnson & Johnson Consumer Inc. | Process for making tablet using radiofrequency and lossy coated particles |
WO2020069113A3 (en) * | 2018-09-28 | 2020-07-02 | Baker Hughe, A Ge Company, Llc | Expendable hollow carrier fabrication system and method |
WO2020236442A1 (en) * | 2019-05-23 | 2020-11-26 | Halliburton Energy Services, Inc. | Dissolvable expendable guns for plug-and-perf applications |
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- 2013-03-01 BR BR112014026642A patent/BR112014026642A2/en not_active IP Right Cessation
- 2013-03-01 WO PCT/US2013/028506 patent/WO2013165539A1/en active Application Filing
- 2013-03-01 GB GB1421380.5A patent/GB2521527A/en active Pending
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2014
- 2014-10-03 NO NO20141186A patent/NO20141186A1/en not_active Application Discontinuation
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US9233491B2 (en) | 2012-05-01 | 2016-01-12 | Johnson & Johnson Consumer Inc. | Machine for production of solid dosage forms |
US20190316455A1 (en) * | 2016-08-19 | 2019-10-17 | Halliburton Energy Services, Inc. | Utilizing electrically actuated explosives downhole |
US10920557B2 (en) * | 2016-08-19 | 2021-02-16 | Halliburton Energy Services, Inc. | Utilizing electrically actuated explosives downhole |
US10493026B2 (en) | 2017-03-20 | 2019-12-03 | Johnson & Johnson Consumer Inc. | Process for making tablet using radiofrequency and lossy coated particles |
WO2020069113A3 (en) * | 2018-09-28 | 2020-07-02 | Baker Hughe, A Ge Company, Llc | Expendable hollow carrier fabrication system and method |
GB2592787A (en) * | 2018-09-28 | 2021-09-08 | Baker Hughes Holdings Llc | Expendable hollow carrier fabrication system and method |
US11267031B2 (en) * | 2018-09-28 | 2022-03-08 | Baker Hughes, A Ge Company, Llc | Expendable hollow carrier fabrication system and method |
GB2592787B (en) * | 2018-09-28 | 2023-01-25 | Baker Hughes Holdings Llc | Expendable hollow carrier fabrication system and method |
WO2020236442A1 (en) * | 2019-05-23 | 2020-11-26 | Halliburton Energy Services, Inc. | Dissolvable expendable guns for plug-and-perf applications |
US11391138B2 (en) | 2019-05-23 | 2022-07-19 | Halliburton Energy Services, Inc. | Acid fracturing with dissolvable plugs |
US11428089B2 (en) | 2019-05-23 | 2022-08-30 | Halliburton Energy Services, Inc. | Locating self-setting dissolvable plugs |
US11454101B2 (en) | 2019-05-23 | 2022-09-27 | Halliburton Energy Services, Inc. | Dissolvable setting tool or hydraulic fracturing operations |
Also Published As
Publication number | Publication date |
---|---|
WO2013165539A1 (en) | 2013-11-07 |
BR112014026642A2 (en) | 2017-06-27 |
GB201421380D0 (en) | 2015-01-14 |
NO20141186A1 (en) | 2014-10-29 |
GB2521527A8 (en) | 2015-07-01 |
GB2521527A (en) | 2015-06-24 |
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Legal Events
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AS | Assignment |
Owner name: BAKER HUGHES INCORPORATED, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HARVEY, WILLIAM B.;WENDT, CLARENCE, JR.;HETZ, AVIGDOR;AND OTHERS;SIGNING DATES FROM 20120426 TO 20120501;REEL/FRAME:028150/0389 |
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