US20070107899A1 - Perforating Gun Fabricated from Composite Metallic Material - Google Patents

Perforating Gun Fabricated from Composite Metallic Material Download PDF

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Publication number
US20070107899A1
US20070107899A1 US11/464,632 US46463206A US2007107899A1 US 20070107899 A1 US20070107899 A1 US 20070107899A1 US 46463206 A US46463206 A US 46463206A US 2007107899 A1 US2007107899 A1 US 2007107899A1
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United States
Prior art keywords
perforating gun
layers
apparatus
intermetallic
perforating
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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
Application number
US11/464,632
Inventor
Andrew Werner
Ian Walton
Brenden Grove
Philip Kneisl
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Schlumberger Technology Corp
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Schlumberger Technology Corp
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Publication date
Priority to US59592305P priority Critical
Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Priority to US11/464,632 priority patent/US20070107899A1/en
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION reassignment SCHLUMBERGER TECHNOLOGY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WALTON, IAN C., WERNER, ANDREW T., GROVE, BRENDEN M., KNEISL, PHILIP
Publication of US20070107899A1 publication Critical patent/US20070107899A1/en
Application status is Abandoned legal-status Critical

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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • E21B43/119Details, e.g. for locating perforating place or direction
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11Perforators; Permeators
    • E21B43/116Gun or shaped charge perforators

Abstract

A perforating gun and method of manufacture is provided for downhole perforation operations in a wellbore. The perforating gun includes tubular components fabricated from a multi-layer metallic/intermetallic laminate material. For example, the perforating gun may include a tubular gun carrier and/or loading tube fabricated from a multi-layers of two different metals (e.g., iron and aluminum) bonded together to form an intermetallic laminate.

Description

    TECHNICAL FIELD
  • The present invention relates generally to enhancements in production of hydrocarbons from subterranean formations, and more particularly to a perforating gun for use downhole in a wellbore.
  • BACKGROUND
  • After a well has been drilled and casing has been cemented in the well, one or more sections of the casing, which are adjacent to formation zones, may be perforated to allow fluid from the formation zones to flow into the well for production to the surface or to allow injection fluids to be applied into the formation zones. In other productions, hydrocarbons are retrieved from an uncased or “openhole” well. Whether in a cased or open hole well, a perforating gun string is lowered into the well to a desired depth and then the gun is fired to create openings in the casing (in cased well operations) and to extend perforations into the surrounding formation. Production fluids in the perforated formation can then flow through the perforations and the casing openings into the wellbore.
  • Typically, perforating guns (which include gun carriers and shaped charges mounted on or in the gun carriers) are lowered through tubing or other pipes to the desired well interval. Shaped charges carried in a perforating gun are often phased to fire in multiple directions around the circumference of the wellbore. When fired, shaped charges create perforating jets that form holes in surrounding casing as well as extend perforations into the surrounding formation.
  • Various types of perforating guns exist. One type of perforating gun includes capsule shaped charges that are mounted on a strip in various patterns. The capsule shaped charges are protected from the harsh wellbore environment by individual containers or capsules. Another type of perforating gun includes non-capsule shaped charges, which are loaded into a sealed carrier for protection. Such perforating guns are sometimes also referred to as hollow carrier guns. The non-capsule shaped charges of such hollow carrier guns may be mounted in a loading tube that is contained inside the carrier, with each shaped charge connected to a detonating cord. When activated, a detonation wave is initiated in the detonating cord to fire the shaped charges. In a hollow-carrier gun, charges shoot through the carrier into the surrounding casing formation.
  • One problem with a carrier gun is the damage done to the gun housing which can create unwanted debris and contaminants in the wellbore. During a perforation operation, the gun housing is subjected damage caused by internal pressure from the explosive gases released by the charges, and by high-velocity impacts from fragments of charge cases. Accordingly, a need exists for a gun housing that is capable of withstanding the damage caused by these extreme pressures and high velocity impacts. The present invention is directed at providing such a system.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • The manner in which these objectives and other desirable characteristics can be obtained is explained in the following description and attached drawings in which:
  • FIG. 1 illustrates an embodiment of a perforating system assembly including the components linked on a perforating gun string.
  • FIG. 2 illustrates a profile view of a shaped charge in accordance with the present invention.
  • FIG. 3A shows a partial view of the perforating system in accordance with the present invention.
  • FIG. 3B displays a cross-sectional view of the shaped charge in accordance with the present invention.
  • FIG. 4 shows an enlarged view of a component in the perforating system assembly.
  • However, it should be noted that the appended drawings illustrate typical embodiments of this invention and are not to be considered limiting in scope. The invention may admit to other equally effective embodiments.
  • SUMMARY
  • In general, according to one embodiment of the present invention, a gun system, fabricated from a multi-layer metallic/intermetallic laminate material that is used to perforate a wellbore, is provided.
  • DESCRIPTION OF EMBODIMENTS OF THE PRESENT INVENTION
  • In the specification and appended claims, the terms “connect”, “connection”, “connected”, “in connection with”, and “connecting” are used to mean “in direct connection with” or “in connection with via another element”. The term “set” is used to mean “one element” or “more than one element”. 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 described 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.
  • Typically, the steel used to fabricate gun carriers or housings for perforating guns is compounded and processed to balance high strength with high toughness, for collapse and swell resistance and cracking/splitting resistance, respectively.
  • In general, an embodiment of the present invention includes a laminate material used to fabricate the perforating gun components (e.g., gun carrier or housing, loading tube, and so forth) that are susceptible to damage from high internal gas pressures and impact of explosive components during perforation operations. The laminate material comprises interleaved layers of metallic and intermetallic compounds. For example, combinations of metallic and intermetallic compounds include titanium and titanium aluminide, nickel and nickel aluminide, iron and iron aluminide, and iron and iron stanide.
  • In some embodiments, the laminate material may be produced by stacking multiple layers of aluminum and titanium (or other metals), and subsequently subjecting the stack of metals to high pressures and elevated temperatures. In such embodiments, the aluminum reacts with a portion of the titanium to form a hard, strong intermetallic compound. Layers of titanium remain in between the layers of brittle intermetallic compound, providing toughness (crack resistance) to the laminate. The resulting material has advantageous mechanical properties, namely increased strength and penetration resistance. U.S. Pat. No. 6,357,332, which is incorporated herein by reference, describes a process for making metallic-intermetallic composite laminate material for use in lightweight armor applications. The '332 Patent describes the process for making the laminate material from sheets with a tough first metal interleaved with sheets, and a second metal compounded with the first metal. The confined metal layers resist cracking and fracturing of the intermetallic layers. The interleaved sheets react under heat and pressure to react the metals to form a region of an intermetallic compound. The first set of metals may be fabricated are from metal or metal alloys such as titanium, nickel, vanadium, or iron; and the second set of metals may be fabricated from metal or metal alloys such as aluminum and alloys of aluminum.
  • Intermetallic compounds are comprised of two specifically proportioned metals or metal alloys having a defined ratio of one atomic species to another, on specific lattice sites. The bonding is metallic, rather than ionic, but the ordered structure (which can be visualized as two interpenetrating lattices, each containing one atomic species) gives rise to high strength and hardness with limited ductility.
  • In an embodiment of the present invention, a perforating gun (e.g., a carrier, housing, loading tube, or other components) may be fabricated from a metallic-intermetallic laminate material. The material may be formed into a tubular shape of appropriate dimensions. Once a suitable tube is available, application as a perforating gun is a simple matter of direct substitution of the high-strength steel tube conventionally employed.
  • In another embodiment of the present invention, a method is provided to form a metallic-intermetallic laminate tube. Such a tube may be formed by wrapping alternating layers of aluminum and low-carbon steel such as iron (or alternatively, aluminum and titanium) around a mandrel with sufficient turns to build up a tube with an appropriate thickness and with an appropriate number of layers. The aluminum and iron form a series of iron aluminides analogous to a titanium aluminide. This is done by inserting a wrapped tube into a heated tubular die, with an inside diameter equal to the desired outside diameter of the finished laminate tube. Then using suitable end caps, the inside of the laminate tube is pressurized with air, nitrogen, argon, helium, or any suitable gas, to the required pressure, and the die is heated to the proper temperature. The die may be a clamshell shaped furnace that when closed, forms a cylindrical mold and can be opened to remove the finished tube.
  • After allowing time for the aluminum to diffuse into and react with the iron, the laminate is cooled. This is one proposed means of fabricating the laminate material into a tubular shape suitable for use as a perforating gun. Although this particular embodiment was described using layers of aluminum and iron, in other embodiments of the present invention other metals may be used for such layers that including and elements that form ordered intermetallic compounds.
  • FIG. 1 illustrates a perforating “carrier” gun string as used in conventional perforating operations in a wellbore 11. The perforating gun string 5 may be suspended and run into the wellbore 11 by a wireline 1, or any other conveyance mechanism (e.g., tubing, slickline, and so forth). The perforating gun string is positioned downhole within a casing 3 to the desired depth via the wireline 1. In other embodiments, the perforating gun may be deployed in uncased or open hole wells. The perforating gun string 5 may include one or more guns coupled together in series, each holding at least one explosive charge, and connected together by an adapter 9.
  • FIG. 2 shows an embodiment of a shaped charge 101 that is connected to a detonating cord 109. The shaped charge 101 includes an outer case 103 that is designed to hold an explosive 105 and liner 111. The liner 111 and the case 103 encompass an explosive 105 that is contained inside the case. The primer column 107 provides the detonating connection between the detonation cord 109 and the explosive 105. When activated, a detonation wave is created in the detonating cord 109 and activates the primer column 107. This causes the explosive 105 to detonate and consequently create a detonation wave through the shaped charge 101. The liner 111 collapses under the force of the explosive 105 charge.
  • FIGS. 3A and 3B demonstrates an embodiment of a perforating gun system including an outer cylindrical tube or carrier 201, and a loading tube 113. The loading tube mechanically holds the holds the charges and is then inserted into the gun carrier 201. After the shaped charges are detonated, the energy is transmitted through the loading tube 113, to the gun carrier 201. In accordance with the present invention, an embodiment of the gun carrier 201 may be formed from a multi layered metallic-intermetallic laminate 203A. Moreover, the loading tube 113 may also be formed from a multi-layered metallic and /or inter-metallic laminate 203B. Embodiments of the present invention include a perforating gun system having a multi-layered laminate gun carrier or loading or both.
  • FIG. 4 illustrates a tubular member 301 formed from a multi-layered laminate material. For example, a perforating gun carrier or loading tube could represent the tubular member 301. Each layer consists of a metal or metal alloy and an intermetallic compound of that element. The illustrated embodiment includes a tubular formed from five laminated layers, but it is intended that the present invention includes tubes for use in perforating gun systems including two or more laminate layers.
  • Although only a few exemplary embodiments of this invention have been described in detail above, those skilled in the art will readily appreciate that many modifications are possible in the exemplary embodiments without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention.

Claims (14)

1. Apparatus for use in a well, comprising:
a tubular housing for holding an explosive, the tubular housing being adapted to be deployed in the well;
wherein the housing includes at least two laminated layers of material.
2. The apparatus of claim 1, wherein the housing is a perforating gun carrier.
3. The apparatus of claim 1, wherein the housing is a perforating gun loading tube.
4. The apparatus of claim 1, wherein at least two laminated layers are intermetallic layers.
5. The apparatus of claim 1, wherein the at least two laminated layers comprise a metal and an intermetallic layer.
6. The apparatus of claim 5, wherein the first metal layer consists of: iron, copper, nickel, titanium, vanadium, or any alloy thereof.
7. The apparatus of claim 5, wherein the second metal layer consists of: aluminum, or alloys of aluminum, or any other element that forms an ordered intermetallic compound with the first metal layer.
8. The apparatus of claim 1, wherein the tubular housing is adapted to hold a plurality of shaped charges.
9. A method for perforating a formation in a wellbore, comprising:
providing a perforating gun formed from at least two laminated layers;
deploying the perforating gun in the wellbore adjacent to the formation; and
firing the perforating gun.
10. The method of claim 9, wherein providing a perforating gun comprises: forming the perforating gun from at least two laminated metallic-intermetallic layers.
11. The method of claim 10, wherein one of the metallic-intermetallic layers consists of: iron, copper, nickel, titanium, vanadium, or any alloy thereof.
12. The method of claim 11, wherein another of the metallic-intermetallic layers consists of:
aluminum, alloys of aluminum, or any other element that forms an ordered intermetallic compound with the metal of the first layer.
13. A method of forming a perforating gun for perforating well formations, comprising:
wrapping alternating layers of a first metallic layer and a second metallic layer around a tubular structure to form a layered tube;
inserting the layered tube into a tubular die;
pressurizing the layered tube from within;
heating the tubular die to diffuse the layers of the layered tube together to form a laminate tube; and
cooling the laminate tube.
14. The method of claim 13, wherein the tubular structure is formed with at least two turns of the alternating layers to form the layered tube.
US11/464,632 2005-08-17 2006-08-15 Perforating Gun Fabricated from Composite Metallic Material Abandoned US20070107899A1 (en)

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090078420A1 (en) * 2007-09-25 2009-03-26 Schlumberger Technology Corporation Perforator charge with a case containing a reactive material
US20130118730A1 (en) * 2011-11-14 2013-05-16 Baker Hughes Incorporated Downhole tools including anomalous strengthening materials and related methods
US9033055B2 (en) 2011-08-17 2015-05-19 Baker Hughes Incorporated Selectively degradable passage restriction and method
US9057242B2 (en) 2011-08-05 2015-06-16 Baker Hughes Incorporated Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate
US9068428B2 (en) 2012-02-13 2015-06-30 Baker Hughes Incorporated Selectively corrodible downhole article and method of use
US9080098B2 (en) 2011-04-28 2015-07-14 Baker Hughes Incorporated Functionally gradient composite article
US9079246B2 (en) 2009-12-08 2015-07-14 Baker Hughes Incorporated Method of making a nanomatrix powder metal compact
US9090955B2 (en) 2010-10-27 2015-07-28 Baker Hughes Incorporated Nanomatrix powder metal composite
US9090956B2 (en) 2011-08-30 2015-07-28 Baker Hughes Incorporated Aluminum alloy powder metal compact
US9101978B2 (en) 2002-12-08 2015-08-11 Baker Hughes Incorporated Nanomatrix powder metal compact
US9109429B2 (en) 2002-12-08 2015-08-18 Baker Hughes Incorporated Engineered powder compact composite material
US9109269B2 (en) 2011-08-30 2015-08-18 Baker Hughes Incorporated Magnesium alloy powder metal compact
US9127515B2 (en) 2010-10-27 2015-09-08 Baker Hughes Incorporated Nanomatrix carbon composite
US9133695B2 (en) 2011-09-03 2015-09-15 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
US9139928B2 (en) 2011-06-17 2015-09-22 Baker Hughes Incorporated Corrodible downhole article and method of removing the article from downhole environment
US9187990B2 (en) 2011-09-03 2015-11-17 Baker Hughes Incorporated Method of using a degradable shaped charge and perforating gun system
US9243475B2 (en) 2009-12-08 2016-01-26 Baker Hughes Incorporated Extruded powder metal compact
US9267347B2 (en) 2009-12-08 2016-02-23 Baker Huges Incorporated Dissolvable tool
US9347119B2 (en) 2011-09-03 2016-05-24 Baker Hughes Incorporated Degradable high shock impedance material
US9605508B2 (en) 2012-05-08 2017-03-28 Baker Hughes Incorporated Disintegrable and conformable metallic seal, and method of making the same
US9643144B2 (en) 2011-09-02 2017-05-09 Baker Hughes Incorporated Method to generate and disperse nanostructures in a composite material
US9682425B2 (en) 2009-12-08 2017-06-20 Baker Hughes Incorporated Coated metallic powder and method of making the same
US9707739B2 (en) 2011-07-22 2017-07-18 Baker Hughes Incorporated Intermetallic metallic composite, method of manufacture thereof and articles comprising the same
US9816339B2 (en) 2013-09-03 2017-11-14 Baker Hughes, A Ge Company, Llc Plug reception assembly and method of reducing restriction in a borehole
US9833838B2 (en) 2011-07-29 2017-12-05 Baker Hughes, A Ge Company, Llc Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9856547B2 (en) 2011-08-30 2018-01-02 Bakers Hughes, A Ge Company, Llc Nanostructured powder metal compact
US9910026B2 (en) 2015-01-21 2018-03-06 Baker Hughes, A Ge Company, Llc High temperature tracers for downhole detection of produced water
US9926766B2 (en) 2012-01-25 2018-03-27 Baker Hughes, A Ge Company, Llc Seat for a tubular treating system
US10016810B2 (en) 2015-12-14 2018-07-10 Baker Hughes, A Ge Company, Llc Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof
US10092953B2 (en) 2011-07-29 2018-10-09 Baker Hughes, A Ge Company, Llc Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US10221637B2 (en) 2015-08-11 2019-03-05 Baker Hughes, A Ge Company, Llc Methods of manufacturing dissolvable tools via liquid-solid state molding
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US10335858B2 (en) 2011-04-28 2019-07-02 Baker Hughes, A Ge Company, Llc Method of making and using a functionally gradient composite tool

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US9109429B2 (en) 2002-12-08 2015-08-18 Baker Hughes Incorporated Engineered powder compact composite material
US9101978B2 (en) 2002-12-08 2015-08-11 Baker Hughes Incorporated Nanomatrix powder metal compact
US20090078420A1 (en) * 2007-09-25 2009-03-26 Schlumberger Technology Corporation Perforator charge with a case containing a reactive material
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US9682425B2 (en) 2009-12-08 2017-06-20 Baker Hughes Incorporated Coated metallic powder and method of making the same
US9079246B2 (en) 2009-12-08 2015-07-14 Baker Hughes Incorporated Method of making a nanomatrix powder metal compact
US9243475B2 (en) 2009-12-08 2016-01-26 Baker Hughes Incorporated Extruded powder metal compact
US9267347B2 (en) 2009-12-08 2016-02-23 Baker Huges Incorporated Dissolvable tool
US9090955B2 (en) 2010-10-27 2015-07-28 Baker Hughes Incorporated Nanomatrix powder metal composite
US9127515B2 (en) 2010-10-27 2015-09-08 Baker Hughes Incorporated Nanomatrix carbon composite
US9080098B2 (en) 2011-04-28 2015-07-14 Baker Hughes Incorporated Functionally gradient composite article
US9631138B2 (en) 2011-04-28 2017-04-25 Baker Hughes Incorporated Functionally gradient composite article
US10335858B2 (en) 2011-04-28 2019-07-02 Baker Hughes, A Ge Company, Llc Method of making and using a functionally gradient composite tool
US9139928B2 (en) 2011-06-17 2015-09-22 Baker Hughes Incorporated Corrodible downhole article and method of removing the article from downhole environment
US9926763B2 (en) 2011-06-17 2018-03-27 Baker Hughes, A Ge Company, Llc Corrodible downhole article and method of removing the article from downhole environment
US9707739B2 (en) 2011-07-22 2017-07-18 Baker Hughes Incorporated Intermetallic metallic composite, method of manufacture thereof and articles comprising the same
US10092953B2 (en) 2011-07-29 2018-10-09 Baker Hughes, A Ge Company, Llc Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9833838B2 (en) 2011-07-29 2017-12-05 Baker Hughes, A Ge Company, Llc Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9057242B2 (en) 2011-08-05 2015-06-16 Baker Hughes Incorporated Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate
US10301909B2 (en) 2011-08-17 2019-05-28 Baker Hughes, A Ge Company, Llc Selectively degradable passage restriction
US9033055B2 (en) 2011-08-17 2015-05-19 Baker Hughes Incorporated Selectively degradable passage restriction and method
US9925589B2 (en) 2011-08-30 2018-03-27 Baker Hughes, A Ge Company, Llc Aluminum alloy powder metal compact
US9090956B2 (en) 2011-08-30 2015-07-28 Baker Hughes Incorporated Aluminum alloy powder metal compact
US9856547B2 (en) 2011-08-30 2018-01-02 Bakers Hughes, A Ge Company, Llc Nanostructured powder metal compact
US9802250B2 (en) 2011-08-30 2017-10-31 Baker Hughes Magnesium alloy powder metal compact
US9109269B2 (en) 2011-08-30 2015-08-18 Baker Hughes Incorporated Magnesium alloy powder metal compact
US9643144B2 (en) 2011-09-02 2017-05-09 Baker Hughes Incorporated Method to generate and disperse nanostructures in a composite material
US9133695B2 (en) 2011-09-03 2015-09-15 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
US9187990B2 (en) 2011-09-03 2015-11-17 Baker Hughes Incorporated Method of using a degradable shaped charge and perforating gun system
US9347119B2 (en) 2011-09-03 2016-05-24 Baker Hughes Incorporated Degradable high shock impedance material
US9079247B2 (en) * 2011-11-14 2015-07-14 Baker Hughes Incorporated Downhole tools including anomalous strengthening materials and related methods
US20130118730A1 (en) * 2011-11-14 2013-05-16 Baker Hughes Incorporated Downhole tools including anomalous strengthening materials and related methods
CN104145073A (en) * 2011-11-14 2014-11-12 贝克休斯公司 Downhole tools including anomalous strengthening materials and related methods
US9926766B2 (en) 2012-01-25 2018-03-27 Baker Hughes, A Ge Company, Llc Seat for a tubular treating system
US9068428B2 (en) 2012-02-13 2015-06-30 Baker Hughes Incorporated Selectively corrodible downhole article and method of use
US9605508B2 (en) 2012-05-08 2017-03-28 Baker Hughes Incorporated Disintegrable and conformable metallic seal, and method of making the same
US9816339B2 (en) 2013-09-03 2017-11-14 Baker Hughes, A Ge Company, Llc Plug reception assembly and method of reducing restriction in a borehole
US9910026B2 (en) 2015-01-21 2018-03-06 Baker Hughes, A Ge Company, Llc High temperature tracers for downhole detection of produced water
US10221637B2 (en) 2015-08-11 2019-03-05 Baker Hughes, A Ge Company, Llc Methods of manufacturing dissolvable tools via liquid-solid state molding
US10016810B2 (en) 2015-12-14 2018-07-10 Baker Hughes, A Ge Company, Llc Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof

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