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WO2012008819A2 - Composition de fluide polymère à base d'eau de mer pour le forage de puits de pétrole - Google Patents

Composition de fluide polymère à base d'eau de mer pour le forage de puits de pétrole Download PDF

Info

Publication number
WO2012008819A2
WO2012008819A2 PCT/MX2011/000087 MX2011000087W WO2012008819A2 WO 2012008819 A2 WO2012008819 A2 WO 2012008819A2 MX 2011000087 W MX2011000087 W MX 2011000087W WO 2012008819 A2 WO2012008819 A2 WO 2012008819A2
Authority
WO
WIPO (PCT)
Prior art keywords
seawater
composition
amount
drilling
oil wells
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/MX2011/000087
Other languages
English (en)
Spanish (es)
Other versions
WO2012008819A3 (fr
Inventor
Carlos Alberto Vega Castillo
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.)
Global Drilling Fluids De Mexico SA de CV
Original Assignee
Global Drilling Fluids De Mexico SA de CV
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 Global Drilling Fluids De Mexico SA de CV filed Critical Global Drilling Fluids De Mexico SA de CV
Publication of WO2012008819A2 publication Critical patent/WO2012008819A2/fr
Publication of WO2012008819A3 publication Critical patent/WO2012008819A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
    • C09K8/10—Cellulose or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/06—Clay-free compositions
    • C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors

Definitions

  • the present invention relates to the oil industry in general, in particular it relates to the media, systems and fluid compositions used in the drilling of oil wells and more specifically refers to the composition of a polymeric fluid based on seawater as a continuous phase.
  • the drilling of oil wells in producing, depleted, fractured areas, with loss of circulation, vertical and directed wells with high angles, wells with problems of instability of the hole and hydratable clays, as well as where there is the difficulty of cleaning the hole.
  • a novel composition of a polymeric fluid based on seawater as a continuous phase for the drilling of oil wells that allows drilling to be carried out facilitating operation in producing, depleted, fractured areas, with loss of circulation, vertical wells and directed at high angles, wells with problems of instability of the hole and hydratable clays, as well as where there is the difficulty of cleaning the hole; It would provide advantages over known fluids.
  • the present invention has as its main objective to make available a novel composition of a polymeric fluid based on seawater as a continuous phase used for the drilling of oil wells that facilitates the operation of drilling in producing, depleted, fractured, lost areas. of circulation, vertical wells and directed with high angles, wells with problems of instability of the hole and hydratable clays, as well as where there is the difficulty of cleaning the hole.
  • Another object of the invention is to make said novel composition of a polymeric sea water based fluid available as a continuous phase used for drilling wells. tankers, which also have excellent Theological properties suitable for cleaning, hole stability and formation inhibition.
  • Another objective of the invention is to make said novel composition of a polymeric seawater based polymer available as a continuous phase used for drilling oil wells, which also avoids the incorporation of clays, which allows minimizing low gravity solids, which allows improving hydraulics and allow an increase in penetration speed.
  • Still another of the objectives of the invention is to make said novel composition of a polymeric water-based polymer fluid available as a continuous phase used for drilling oil wells, which also allows to improve the cleanliness of the directed and high-angle holes.
  • Another object of the invention is to make said novel composition of a polymeric water-based polymer fluid available as a continuous phase used for drilling oil wells, which also minimizes the cost of operation.
  • Yet another object of the invention is to make said novel composition of a polymeric water-based polymer fluid available as a continuous phase used for drilling oil wells, which also employs biodegradable products. that make it environmentally friendly.
  • Still another object of the invention is to make available said novel composition of a polymeric fluid based on seawater as a continuous phase used for drilling oil wells, which is also a solids-free composition and allows to replace fluids that employ highly polluting continuous phases. And all those qualities and objectives that will become apparent when making a general and detailed description of the present invention supported by the illustrated modalities.
  • composition of polymeric fluid based on seawater as a continuous phase for the drilling of oil wells in producing formations, depleted, fractured, with loss of circulation, vertical wells and directed at high angles, wells with problems of instability of the hole and hydratable clays, as well as where there is the difficulty of cleaning the hole.
  • the fluid is a fluid free of solids with good carrying capacity; offers optimal inhibition of shales, allowing the improvement of operating conditions and influencing cost reduction, especially due to the high consumption of diesel in the low density fluid.
  • the formulation uses biodegradable products with environmental care in mind.
  • Said composition comprises organic chemical inhibitors and salts to control the swelling of clays using organic inhibitor molecules in the fluids of the clay surface, where they compete with the water molecules for the reactive sites of the clays and therefore serve to reduce the swelling of the clay
  • the composition comprises seawater as a continuous phase; at least one viscosifier, preferably high purity Xantana Gum that allows to obtain an excellent carry and suspension in the fluid improving the cleaning; at least one filtrate reducer preferably consisting of a regular grade high purity polyanionic cellulose which further aids inhibition; at least one filtrate reducer which preferably consists of a derivative of complex polyethers and that modify the rheology; at least one chemical inhibitor of polyglycol-based shales to prevent the hydration of clays designed to work with high salinities due to their relatively high fog point and to maintain their inhibitory capacity; potassium chloride salt as a clay inhibitor; at least one alkalizing element, pH controller and magnesium precipitate, preferably caustic soda; at least one calcium sequestrant, preferably carbonate of sodium (ASH soda) to precipitate calcium from seawater and for polymers to react and optimize their performance.
  • at least one viscosifier preferably high purity Xantana Gum that allows to obtain an excellent carry and suspension in the fluid improving the cleaning
  • composition is based on determining, by means of a rotational viscometer, the rheological and thixotropic properties of a fluid under given conditions, which must be maintained in a suitable range, to optimize the cleanliness of the well being drilled.
  • Stability refers to having an excellent formation inhibition using glycol based inhibitors; the formations that are inhibited are clays and shales.
  • Said composition quantitatively comprises the following values for 1 m 3 of fluid: seawater in an amount of 962.5 l / m 3 ; ASH soda in an amount of 1.5 Kg / m 3 ;; High quality xanthic gum in an amount of 9.0 lt / m 3 , regular grade polyanionic cellulose in an amount of 4.0 Kg / m 3 ; polymer derived from ether complexes in an amount of 6.0 Kg / m 3 ; polyglycols in an amount of 12.0 lt / m 3 and potassium chloride in an amount of 18.0 Kg / m 3. , caustic soda in an amount of 2.0 Kg / m 3 .
  • the density of the fluid can be managed in values of 1.02 gr / cc to 1.40 gr / cc, the system being densified with calcium carbonate and / or Barite.
  • the polymeric fluid composition is designed to drill producing areas, depleted, fractured, with lost circulation; vertical wells, directed with high angles and horizontal; in wells with problems of instability of the hole and clays highly hydratable, also where there is the difficulty of cleaning the hole.
  • composition of the fluid offers environmental advantages, minimizing the costs and damages as they are clean fluids.
  • Drill hydratable formations with dispersible clays Drill hydratable formations with dispersible clays.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition d'un fluide polymère à base d'eau de mer utilisée en tant que phase continue pour le forage de puits de pétrole, laquelle composition se caractérise en ce qu'elle comprend pour chaque mètre cube de fluide: une quantité de 957,7 litres d'eau de mer en tant que phase continue, 1kg de soude ASH en tant que séquestrant du calcium; 2kg de soude caustique en tant qu'élément alcalifiant, régulateur du pH et agent de précipitation du magnésium; 4kg de cellulose polyanionique ordinaire en tant que réducteur de filtration; 6kg de gomme xanthique de haute qualité en tant qu'agent de viscosité pour obtenir une excellente aptitude à la manipulation et une excellente aptitude à la suspension dans le fluide améliorant la propreté; 8kg de glycols en tant qu'inhibiteur des lutites et 10kg de chlorure de potassium en tant qu'inhibiteur des argiles.
PCT/MX2011/000087 2010-07-12 2011-07-12 Composition de fluide polymère à base d'eau de mer pour le forage de puits de pétrole Ceased WO2012008819A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MX2010007627A MX2010007627A (es) 2010-07-12 2010-07-12 Composicion de fluido polimerico base agua de mar para la perforacion de pozos petroleros.
MXMX/A/2010/007627 2010-07-12

Publications (2)

Publication Number Publication Date
WO2012008819A2 true WO2012008819A2 (fr) 2012-01-19
WO2012008819A3 WO2012008819A3 (fr) 2012-04-12

Family

ID=45469973

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2011/000087 Ceased WO2012008819A2 (fr) 2010-07-12 2011-07-12 Composition de fluide polymère à base d'eau de mer pour le forage de puits de pétrole

Country Status (2)

Country Link
MX (1) MX2010007627A (fr)
WO (1) WO2012008819A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016039611A3 (fr) * 2014-09-08 2016-04-07 Tecnología Integral En Fluidos De Perforación S.A. De C.V. Fluide polymère à haute performance en phase aqueuse, pour le forage de puits en formations de faible pente

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361842A (en) * 1993-05-27 1994-11-08 Shell Oil Company Drilling and cementing with blast furnace slag/silicate fluid
US7012043B2 (en) * 2001-11-08 2006-03-14 Huntsman Petrochemical Corporation Drilling fluids
GB0405273D0 (en) * 2004-03-09 2004-04-21 Ici Plc Improved drilling fluids
US7384892B2 (en) * 2004-07-22 2008-06-10 Hercules Incorporated Water-based drilling fluids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016039611A3 (fr) * 2014-09-08 2016-04-07 Tecnología Integral En Fluidos De Perforación S.A. De C.V. Fluide polymère à haute performance en phase aqueuse, pour le forage de puits en formations de faible pente
US10266743B2 (en) 2014-09-08 2019-04-23 Tecnología Integral En Fluidos De Perforación S.A. De C.V. High-performance aqueous-phase polymer fluid for drilling well bores in low-gradient formations

Also Published As

Publication number Publication date
WO2012008819A3 (fr) 2012-04-12
MX2010007627A (es) 2012-01-17

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