WO2017143181A1 - Système de traitement de puits de forage - Google Patents

Système de traitement de puits de forage Download PDF

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Publication number
WO2017143181A1
WO2017143181A1 PCT/US2017/018357 US2017018357W WO2017143181A1 WO 2017143181 A1 WO2017143181 A1 WO 2017143181A1 US 2017018357 W US2017018357 W US 2017018357W WO 2017143181 A1 WO2017143181 A1 WO 2017143181A1
Authority
WO
WIPO (PCT)
Prior art keywords
wellbore
energetic material
welibore
explosive
downhole tool
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.)
Ceased
Application number
PCT/US2017/018357
Other languages
English (en)
Inventor
James GILLIAT
Rajani SATTI
Stephen ZUKLIC
Scott Nelson
Juan Flores
Harold Brannon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Priority to BR112018015899-2A priority Critical patent/BR112018015899B1/pt
Priority to EP17753921.0A priority patent/EP3417143B1/fr
Publication of WO2017143181A1 publication Critical patent/WO2017143181A1/fr
Priority to SA518392182A priority patent/SA518392182B1/ar
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • E21B43/25—Methods for stimulating production

Definitions

  • the present disclosure relates in general to a system and method of treating a subterranean wellbore. More specifically, the present disclosure relates to coupling a well treatment substance with energetic material and reacting the energetic material within a wellbore.
  • 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 hydrau cally 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 wail 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.
  • 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.
  • 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.
  • Wellbore perforating sometimes is typically followed by hydraulic fracturing in order to promote production from the surrounding formation.
  • the extreme pressures generated by the perforating jet often crush and compacts the reservoir rock around each of the perforations; which typically impedes inflow or injection to and from the reservoir.
  • the crushed zone can reduce the effective permeability of the reservoir rock by up to 75%. Acid is sometimes used to break down this crushed and compacted rock, and is usually pumped from surface and injected into the perforations.
  • jOOOSJ Described herein is a method and system for weiibore operations that inciude introducing a treatment substance into the weiibore.
  • One example method includes deploying a downhole tool in the weiibore, where the downhole tool includes an additive casting made up of an energetic material and a crystalline anhydrous acid.
  • the downhole tool is positioned adjacent an opening formed in a sidewall of the weiibore, and a reaction of the energetic material is caused to generate an expanding gas that drives the crystalline anhydrous acid into the opening thereby increasing a flow of hydrocarbons through the opening.
  • the downhole tool can further include an explosive, and wherein the step of causing a reaction of the energetic material involves initiating detonation of the explosive so that detonation products of the explosive contact the energetic material at a temperature to initiate reaction of the energetic material.
  • the energetic material is activated concurrent with forming perforations in a sidewall of the weiibore, so that the treatment substance is forced into the perforations by expanding gases created by activation of the energetic material.
  • the downhole tool includes a perforating gun, and wherein the explosive comprises high explosive disposed in a plurality of shaped charges that are set radially inward from the additive casting, so that when high explosive in the shaped charges are detonated, detonation products are generated from detonation of the high explosive that contact the energetic material at a temperature to initiate reaction of the energetic material.
  • detonation of the shaped charges form perforations in a sidewall of the weiibore, wherein a plurality of openings are formed in the sidewall of the weiibore, and wherein the perforations define the openings
  • the additive casting is formed into an annular member that circumscribes a portion of the tool.
  • the additive casting is formed mto a planar member and disposed inside a body of the tool.
  • the acid optionally dissolves rock inside of the opening.
  • the energetic material can be a propel lant.
  • a downhole tool for use in operations in a welibore and that is made up of a housing, explosive in the housing and that is strategically oriented, so that when the explosive is detonated, detonation products are formed that travel along a designated path, and an additive casting that is intersected by the designated path, the additive casting formed from a solid matrix of a settabie material, and an energetic material, and where a welibore treatment material is embedded within the settabie material, so that when a reaction in the energetic material is initiated in the welibore, the welibore treatment material is released into the welibore.
  • the welibore treatment fluid can be an anhydrous crystalline acid that is reactive with rock that is intersected by a downhole perforation.
  • the energetic material includes a substance that produces energy or pressurized gas when reacted and is selected from the group consisting of a propellant, an oxidizer, ammonium perchlorate, potassium perchlorate, and combinations thereof.
  • An example of the housing is a perforating gun body, wherein the explosive comprises a high explosive within a shaped charge, and wherein detonating the high explosive forms openings in a sidewali of the welibore.
  • One embodiment of the additive casting is an annular member coupled with the housing.
  • the downhole tool can further include a controller in communication with the explosive.
  • Another method of welibore operations includes disposing an additive casting in the welibore, the additive casting formed from an energetic material and welibore treatment material combined in a solid matrix, and introducing the welibore treatment material into an opening in a sidewali of the welibore by initiating a reaction of the energetic material that releases the welibore treatment material from the matrix, and generates a gas that drives the welibore treatment material into the opening.
  • the method can further include forming the opening by detonating a shaped charge downhole that is oriented to the sidewall.
  • the additive casting is disposed in a path of detonation product discharged from the shaped charge, and wherein the detonation product is at a temperature that initiates the reaction of the energetic material.
  • the wellbore treatment material is a crystalline anhydrous acid that when in the wellbore reconstitutes as a liquid and reacts with rock inside of the opening.
  • the reactive material is a propellant.
  • Figure 1 is a partial side sectional view of an example of a welibore treatment system for use in treating a welibore.
  • Figure 1A is a side sectional view of an example of a shaped charge for use with the welibore treatment system of Figure 1.
  • Figure 2 is a partial side sectional view of the welibore treatment system forming perforations in the welibore of Figure 1 and releasing a treatment fluid into the welibore and the perforations.
  • Figure 3 is side partial sectional view of an alternate example of a welibore treatment system for use in treating a welibore.
  • Figure 4 is side partial sectional view of another alternate example of a welibore treatment system for use in treating a welibore.
  • FIG. 1 An example of a well treatment system 10 is shown in a partial side sectional view in Figure 1.
  • the system 10 is used for treating a wellbore 12 that intersects a formation 14.
  • Wellbore 12 is lined with casing 16 which forms a barrier between formation 14 and inside of wellbore 12.
  • a perforating string 18 shown made up of a string of perforating guns 20 ⁇ 20 ⁇ optional connector subs 22. , 22 2 couple together adjacent guns 20i-20 n
  • the guns 20 r 20 n of the illustrated embodiment include elongate gun bodies 24i-24 n that have a generally curved outer surface and resemble a cylindrical shape.
  • Charge tubes 26 are depicted disposed within each of the gun bodies 24 ⁇ ,-24 ⁇ . Further in the example of Figure 1 , shaped charges 28 are shown mounted within the charge tubes 26j-26RAT. Shown in a side sectional view in Figure 1A is an embodiment of a shaped charge 28, and which includes a case C, a liner L set in the case C, and high explosive HE between the case C and liner L. A detonating cord 29 extends within the perforating string 18 ( Figure 1) and along a path that runs adjacent a booster charge BC in each of the shaped charges 28.
  • Example high explosives HE include compositions sold under trade designations HMX, HNS, RDX, PYX and TNAZ.
  • a wireline 32 is shown mounted to an upper end of a perforating string 18 and is used for raising and lowering perforating string 18 within well bore 12. Additionally, wireline 32 can provide a communication means between perforating string 18 and a surface truck 33 shown mounted on surface 34 and outside of the wellbore 12. In one alternative, a controller 35 is included, such as in surface truck 33, and that is in selective communication with wireline 32 for controlling operation of perforating string 18. In an optional embodiment, wireline 32 couples to a motorized reel (not shown) for raising/lowering wireline 32 m wellbore 12.
  • FIG. 1 shows in a side partial sectional view an example of the shaped charges 28 of Figure 1 having been detonated, such as from a signal via wireline 32 from surface truck 33 or controller 35, and which have formed perforations 36 that project radially out from the wellbore 12, through the casing 16, and into the formation 14.
  • Openings 38 in the sidewali of each of the gun bodies 24 ⁇ -24 ⁇ are also formed by detonating the shaped charges 28.
  • the additive castings 30]-30 go are substantially solid members whose constituents include an energetic material and a treatment substance.
  • the energetic material include any substance that produces energy or pressurized gas when reacted, such as a propellant, oxidizers, ammonium perchlorate, potassium perchlorate, any other reactive material, and combinations thereof.
  • the treatment substance include anything used for treating the wellbore 12, such as an acid, crystalline acids, anhydrous acids, crystalline anhydrous acids, brine, a surfactant, a salt, a polysaccharide, corrosion inhibitors, and combinations thereof.
  • suitable crystalline anhydrous acids and salts that produce acids when dissolved include, but are not intended to be limited to, acetic anhydride, citric acid anhydride, sulfamic acid anhydride, benzoic acid, benzoic acid flakes, hydrochloric acid, hydrofluoric acid, phthalic acid, phthalic anhydride, terephthalic acid, terephthalic anhydride, sulfuric acid anhydride, poiylactic acid, boric acid, ammonium bifluoride, potassium bifluoride, ethyl enediammetetraacetic acid, lactic acid, along with combinations and mixtures thereof.
  • the treatment substance is encapsulated in a shell (not shown) that dissolves/degrades when exposed to conditions/fluids downhole.
  • the treatment substances dissolve in connate fluid, water based drilling fluids, oil based drilling fluids, and combinations thereof.
  • the shaped charges 28 of Figure 1 are oriented so that when explosives within the shaped charges 28 are detonated, detonation products generated by the detonation are directed towards the additive casting 30i-30 n .
  • An example of the detonation products includes gas at high pressure and/or temperature that initiate a corresponding reaction of the energetic material in the additive casting 30i-30 n .
  • the treatment substance takes the form of a treatment fluid 40 when released from the castings 30 ⁇ -30 ⁇ .
  • the treatment fluid 40 is shown in wellbore 1 2 and entering perforations 36.
  • a crystalline acid such as an anhydrous crystalline acid
  • an energetic gas generating material such as potassium perchlorate
  • energy is generated, that in an example includes high velocity gases, that carries or urges the crystalline acid into the perforations 36, and where the acid begins to react with the crushed and compacted rock that surrounds the perforations 36.
  • energy is generated, that in an example includes high velocity gases, that carries or urges the crystalline acid into the perforations 36, and where the acid begins to react with the crushed and compacted rock that surrounds the perforations 36.
  • calcareous components of the crushed rock are dissolved, as well as the matrix itself. This results in a removal of the crushed and compacted rock, which reduces the overall formation skin.
  • a fuel such as a plastic resin, can be used in combination with the energetic gas generating materials to enhance reaction of the propellant. Examples of the reaction of the propellant include combustion, burning, ignition, and detonation.
  • the charge tubes 2(>; -2b hit could be formed from the cast material of the propellants/energetic material in the additive substance.
  • the combination of cast energetic material and treatment substance can be positioned within the gun bodies 24i-24 n in any shape or form.
  • the treatment method described herein can be performed with or without packers (not shown).
  • Figure 3 shows an alternate example of a well treatment system 10A where the perforating string 18A is disposed in wellbore 12 and shown having additive castings 30Aj-30A ri disposed within the annular gun bodies 24A 1 -24A n .
  • the additive castings 30Ai- 30AAN are disk like members and placed adjacent the shaped charges 28A disposed within the gun bodies 24Aj-24A n .
  • the operational sequence of the embodiment of the well treatment system 10A of Figure 3 is much the same as that of the system 10 of Figure 1, that is detonation of the shaped charges 24A 1 -24Aerne in turn causes initiation of a reaction of the additive castings 30Aj- 30A meaning, thereby releasing a treatment substance into the wellbore 12.
  • other means of initiation reaction of the energetic material can be employed, such as electricity (i.e. via wireline 32) or from a detonation wave from detonation cord 29A in the perforating string ISA.
  • FIG. 4 Another alternate example of a well treatment system 10B is shown in a side partial sectional view in Figure 4.
  • the additive casting SOB is an elongate cylindrical member disposed on an end of wireline 32 and set within wellbore 12.
  • perforations 36 have already been formed within the formation 14.
  • a signal from the surface truck 33 via wireline 32 makes it way to the additive casting 30B to initiate a reaction of the energetic material making up the casting SOB, and thereby releasing the treatment substance into the wellbore 12 and into perforations 36.
  • an additive casting 30 the energetic material is bound to a settable material, combined with a wellbore treatment material, and then molded into a desired shape, such as the annular shape of the additive casting 30 of Figure 1.
  • Example settable materials include thermosetting polymers, resins, thermosetting resins, acrylic resins, polyesters, vinyl esters, epoxy, polyurethane, phenolic resins, amino resins, furan resins, any other material that is moldable and then hardens, and combinations thereof.
  • An alternate embodiment of forming the casting 30 includes mixing a liquid-form resin with a powdered composition of crystalline acid and a propellant, and molding the mixture into a disk or other shape.
  • the propellant/acid disk is then placed adjacent to conventional shaped charges within a perforating gun assembly.
  • the propellant/acid combination is cast as a cylinder (casting SOB of Figure 4) and conveyed downhole to treat a previously perforated wellbore.
  • reaction of the propellant is initiated by means other than a shaped charge, such as by a detonating cord or other suitable initiator.
  • Other components, such as wellbore treatment materials, which include acids, anhydrous acids, crystalline acids, and anhydrous crystalline acids, are optionally blended into the mixture of the energetic material and resin.
  • the gas generated by an oxidation process of the energetic material urges the acid into the perforations 36, and the energetic material is a conveyance or delivery method rather than a stimulation tool.
  • the acid/energetic material composition is cast into tubes and placed inside perforation gun bodies 24i ⁇ 24 u ( Figure 1).
  • One example propellant for use in the casings described above includes potassium perchl orate.
  • detonating a perforating gun generates extreme pressure and heat that ignite the propellant material.
  • a high-velocity gas is generated which carries the crystalline acid into the perforations.
  • the acid reconstitutes as a liquid acid that reacts with the crushed and compacted rock surrounding the perforation tunnels.
  • the calcareous components of the crushed rock can be dissolved or the rock matrix itself can be removed.
  • a significant advantage realized by the present disclosure is that costly equipment for pumping wellbore treatment fluids downhole is not required.
  • Another advantage is that the amount of wellbore treatment fluids or material can be greatly reduced as well as an excessive amount of wellbore treatment fluid is consumed when being pumped downhole.
  • Typical acidizing treatment operations require many hundreds of liters of acid, whereas implementation of the presently disclosed technique is expected to require only grams of treatment substance.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Treating Waste Gases (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)

Abstract

Cette invention concerne un procédé et un système de traitement d'un puits de forage. Un additif de coulée comprenant un matériau énergétique et une substance de traitement est introduit en fond de trou, puis le matériau énergétique subit une réaction de manière à libérer la substance de traitement dans le système puits de forage. Un système de perforation est utilisé pour initier la réaction du matériau énergétique. Le matériau énergétique comprend par exemple un agent propulsif qui génère des gaz qui poussent la substance de traitement dans des ouvertures dans les parois latérales du puits de forage, telles que des perforations ou des fractures. Selon un mode de réalisation, la substance de traitement comprend un acide cristallin anhydre.
PCT/US2017/018357 2016-02-17 2017-02-17 Système de traitement de puits de forage Ceased WO2017143181A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR112018015899-2A BR112018015899B1 (pt) 2016-02-17 2017-02-17 Método de operações em um furo de poço e ferramenta de fundo de poço para uso em operações em um furo de poço
EP17753921.0A EP3417143B1 (fr) 2016-02-17 2017-02-17 Système de traitement de puits de forage
SA518392182A SA518392182B1 (ar) 2016-02-17 2018-08-09 نظام معالجة حفرة بئر

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662296308P 2016-02-17 2016-02-17
US62/296,308 2016-02-17

Publications (1)

Publication Number Publication Date
WO2017143181A1 true WO2017143181A1 (fr) 2017-08-24

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ID=59560249

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Application Number Title Priority Date Filing Date
PCT/US2017/018357 Ceased WO2017143181A1 (fr) 2016-02-17 2017-02-17 Système de traitement de puits de forage

Country Status (5)

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US (1) US20170234116A1 (fr)
EP (1) EP3417143B1 (fr)
BR (1) BR112018015899B1 (fr)
SA (1) SA518392182B1 (fr)
WO (1) WO2017143181A1 (fr)

Cited By (1)

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WO2021055075A1 (fr) * 2019-09-16 2021-03-25 Halliburton Energy Services, Inc. Systèmes et procédés d'amélioration de la production de puits permettant d'améliorer la production de puits

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US11629585B2 (en) 2019-01-16 2023-04-18 Hunting Titan, Inc. Integrated coaxial perforating acidizing operation
WO2020197607A1 (fr) * 2019-03-27 2020-10-01 Halliburton Energy Services, Inc. Amélioration de placement de fluide de traitement dans une formation souterraine
US20210404299A1 (en) * 2019-06-20 2021-12-30 Halliburton Energy Services, Inc. Microencapsulated Acid with Perforation Strategies to Improve the Delivery and Treatment of Formations in Hydraulic Fracturing Applications
US11994009B2 (en) * 2020-03-31 2024-05-28 Saudi Arabian Oil Company Non-explosive CO2-based perforation tool for oil and gas downhole operations
US11441407B2 (en) * 2020-06-15 2022-09-13 Saudi Arabian Oil Company Sheath encapsulation to convey acid to formation fracture

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WO2014179676A1 (fr) * 2013-05-03 2014-11-06 Schlumberger Canada Limited Technique de canon de perforation sensiblement dégradable
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US20090114382A1 (en) * 2007-09-07 2009-05-07 Schlumberger Technology Corporation Shaped charge for acidizing operations
US20130056269A1 (en) * 2011-09-03 2013-03-07 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
WO2014179676A1 (fr) * 2013-05-03 2014-11-06 Schlumberger Canada Limited Technique de canon de perforation sensiblement dégradable
WO2015009753A1 (fr) * 2013-07-15 2015-01-22 Los Alamos National Security, Llc Fracturation géologique en plusieurs étapes

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2021055075A1 (fr) * 2019-09-16 2021-03-25 Halliburton Energy Services, Inc. Systèmes et procédés d'amélioration de la production de puits permettant d'améliorer la production de puits
US11352859B2 (en) 2019-09-16 2022-06-07 Halliburton Energy Services, Inc. Well production enhancement systems and methods to enhance well production

Also Published As

Publication number Publication date
BR112018015899A2 (pt) 2018-12-26
US20170234116A1 (en) 2017-08-17
BR112018015899B1 (pt) 2022-11-08
EP3417143B1 (fr) 2021-08-18
EP3417143A1 (fr) 2018-12-26
SA518392182B1 (ar) 2022-04-21
EP3417143A4 (fr) 2019-11-06

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