CN101240163A - Oil well cement swelling agent - Google Patents

Oil well cement swelling agent Download PDF

Info

Publication number
CN101240163A
CN101240163A CNA2007100567110A CN200710056711A CN101240163A CN 101240163 A CN101240163 A CN 101240163A CN A2007100567110 A CNA2007100567110 A CN A2007100567110A CN 200710056711 A CN200710056711 A CN 200710056711A CN 101240163 A CN101240163 A CN 101240163A
Authority
CN
China
Prior art keywords
cement
oil well
swelling agent
well cement
stratums
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.)
Pending
Application number
CNA2007100567110A
Other languages
Chinese (zh)
Inventor
郑华武
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.)
TIANJIN TEWEI TRADE CO Ltd
Original Assignee
TIANJIN TEWEI TRADE CO Ltd
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 TIANJIN TEWEI TRADE CO Ltd filed Critical TIANJIN TEWEI TRADE CO Ltd
Priority to CNA2007100567110A priority Critical patent/CN101240163A/en
Publication of CN101240163A publication Critical patent/CN101240163A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/0028—Aspects relating to the mixing step of the mortar preparation
    • C04B40/0039—Premixtures of ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
    • 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
    • C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
    • C09K8/473—Density reducing additives, e.g. for obtaining foamed cement compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

An oil-well cement expander is provided, characterized by consisting of 70% calcium light and 30% azo compounds. The present invention has advantages of making the cement volume expand, effectively improving cementing property between cement columns and sleeves or stratums, improving capability of cement columns supporting sleeves and separating stratums, compensating the liquid column pressure during slurry curing to avoid gas channeling, so the expander is also called the prevention of gas channeling with property in promoting solidification.

Description

Oil well cement swelling agent
Technical field:
The present invention relates to applied admixture in a kind of reinforcing oil well operation, used oil well cement nitrogen expansion agent in particularly a kind of reinforcing oil well operation.
Background technology:
Annular space oil, gas in the oil gas well, water is scurried outward is the outstanding problem of domestic and international petroleum engineering circle common concern always, fails so far fundamentally to solve, and has caused very big financial loss for the petroleum industry of various countries.Therefore, the research of the anti-channeling material and the mechanism of action thereof remains one of focus of various countries' oil well cementation area research.
Summary of the invention:
Purpose of the present invention just is to overcome above-mentioned the deficiencies in the prior art, and a kind of oil well cement swelling agent is provided, and this expansion can improve cementing power, prevent has channeling.
Technical scheme of the present invention is: a kind of oil well cement swelling agent is characterized in that: form by adding the reaction of 70% fine particle calcium carbonate and 30% azo-compound.
The present invention has following advantage and positively effect:
The present invention can significantly improve cement and expanded rate, thickening time and ultimate compression strength not had influence, has good salt resistance and compatibleness.
The present invention is along with the rising of temperature, and the swelling agent dosage reduces.Rate of expansion increases.Be mainly used in the well cementation of oil, gas well.Mix after the present invention, can make the volumetric expansion of grout, can effectively improve the bond on cement annulated column and sleeve pipe and stratum, improve the concrete column supporting sleeve and separate the ability on stratum, fluid column pressure during the compensation water slurry curing prevents has channeling, so also claim to prevent the has channeling agent sometimes.This product has some blood coagulation enhancing effects.
Embodiment:
Embodiment 1: when 38 ℃ of temperature, and good magnificent cement 800 grams, fresh water 352 grams, by swelling agent 6.4 grams that 70% fine particle calcium carbonate and 30% azo-compound are made, the time of getting angry, rate of expansion was greater than 2% between 1-3 hour.
Embodiment 2: when 50 ℃ of temperature, and good magnificent cement 800 grams, the gram of fresh water 352, swelling agent 4 grams of 70% fine particle calcium carbonate and 30% azo-compound, rate of expansion is greater than 12%.

Claims (1)

1. an oil well cement swelling agent is characterized in that: form by adding the reaction of 70% fine particle calcium carbonate and 30% azo-compound.
CNA2007100567110A 2007-02-05 2007-02-05 Oil well cement swelling agent Pending CN101240163A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100567110A CN101240163A (en) 2007-02-05 2007-02-05 Oil well cement swelling agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100567110A CN101240163A (en) 2007-02-05 2007-02-05 Oil well cement swelling agent

Publications (1)

Publication Number Publication Date
CN101240163A true CN101240163A (en) 2008-08-13

Family

ID=39931997

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100567110A Pending CN101240163A (en) 2007-02-05 2007-02-05 Oil well cement swelling agent

Country Status (1)

Country Link
CN (1) CN101240163A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102464463A (en) * 2010-11-09 2012-05-23 中冶武汉冶金建筑研究院有限公司 Compound high-performance expanding agent for cement-based material
CN104724968A (en) * 2013-09-11 2015-06-24 武汉格瑞林建材科技股份有限公司 Plastic expanding agent for settlement resistance of high flow state cement based cementing material and preparation method thereof
CN105271919A (en) * 2015-11-06 2016-01-27 湖北工业大学 Slow-release plastic expanding agent for cement-based binding material and preparation method of slow-release plastic expanding agent
CN105358650A (en) * 2013-05-24 2016-02-24 普拉德研究及开发股份有限公司 Methods for maintaining zonal isolation in a subterranean well
CN105601141A (en) * 2015-12-25 2016-05-25 陕西延长石油(集团)有限责任公司研究院 Expanding agent for oil well cement and preparation method of expanding agent
CN105621923A (en) * 2016-03-08 2016-06-01 上海英杉新材料科技有限公司 Cement-based expanding agent and preparation method and use method thereof
CN107760288A (en) * 2016-08-19 2018-03-06 中国石油天然气集团公司 Gas expansion agent and its application are used in the well cementation of high temperature well

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102464463A (en) * 2010-11-09 2012-05-23 中冶武汉冶金建筑研究院有限公司 Compound high-performance expanding agent for cement-based material
CN102464463B (en) * 2010-11-09 2013-12-11 中冶武汉冶金建筑研究院有限公司 Compound high-performance expanding agent for cement-based material
CN105358650A (en) * 2013-05-24 2016-02-24 普拉德研究及开发股份有限公司 Methods for maintaining zonal isolation in a subterranean well
CN104724968A (en) * 2013-09-11 2015-06-24 武汉格瑞林建材科技股份有限公司 Plastic expanding agent for settlement resistance of high flow state cement based cementing material and preparation method thereof
CN104724968B (en) * 2013-09-11 2018-03-09 武汉格瑞林建材科技股份有限公司 The plastic expansion agent and preparation method thereof of upper flow regime cement-based gelling material anti-settling
CN105271919A (en) * 2015-11-06 2016-01-27 湖北工业大学 Slow-release plastic expanding agent for cement-based binding material and preparation method of slow-release plastic expanding agent
CN105601141A (en) * 2015-12-25 2016-05-25 陕西延长石油(集团)有限责任公司研究院 Expanding agent for oil well cement and preparation method of expanding agent
CN105601141B (en) * 2015-12-25 2017-12-19 陕西延长石油(集团)有限责任公司研究院 A kind of oil-well cement swelling agent and preparation method thereof
CN105621923A (en) * 2016-03-08 2016-06-01 上海英杉新材料科技有限公司 Cement-based expanding agent and preparation method and use method thereof
CN105621923B (en) * 2016-03-08 2018-05-18 上海英杉新材料科技有限公司 Cement base swelling agent and preparation method thereof and application method
CN107760288A (en) * 2016-08-19 2018-03-06 中国石油天然气集团公司 Gas expansion agent and its application are used in the well cementation of high temperature well

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20080813