MY199062A - Solid-free high-density completion fluid and preparation method thereof - Google Patents

Solid-free high-density completion fluid and preparation method thereof

Info

Publication number
MY199062A
MY199062A MYPI2022000054A MYPI2022000054A MY199062A MY 199062 A MY199062 A MY 199062A MY PI2022000054 A MYPI2022000054 A MY PI2022000054A MY PI2022000054 A MYPI2022000054 A MY PI2022000054A MY 199062 A MY199062 A MY 199062A
Authority
MY
Malaysia
Prior art keywords
density
zinc chloride
completion fluid
calcium bromide
solid
Prior art date
Application number
MYPI2022000054A
Inventor
Wandong Zhang
Bo Chen
Yongtang Hu
Hongsheng Zhang
Ming Luo
Tie Geng
Zili Li
Qiang Sun
Hailong Miao
Chongmin Wang
Original Assignee
China Oilfield Services Ltd
Cosl Chemicals Tian Jin 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 China Oilfield Services Ltd, Cosl Chemicals Tian Jin Ltd filed Critical China Oilfield Services Ltd
Publication of MY199062A publication Critical patent/MY199062A/en

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

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)
  • Lubricants (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

Provided is a solid-free high-density completion fluid including water, calcium bromide, zinc chloride and an imidazoline additive. A mass ratio of the water, the calcium bromide, the zinc chloride and the imidazoline additive is 10:(22 to 24):(21 to 22):(0.1325 to 0.14). In the present application, calcium bromide and zinc chloride are compounded, and imidazoline additive is added to prepare a thermal-resistant, high-density solid-free completion fluid with density higher than that obtained when calcium bromide and zinc chloride are dissolved in water separately to reach saturation, so that the density of the completion fluid is (2.002-2.037) g/cm, the fluidity of the solution is good, the apparent viscosity is = 19.50 mPa.s, the corrosion rate to 13Cr coupon at 200 C and normal pressure is = 0.0333 mm/a, the anti-swelling rate of clay is = 87.0%, the solution is transparent and colorless and has the turbidity of = 28.5 NTU, which provides powerful scientific and technological support for the completion and workover of ultra-deep and high-temperature oil and gas wells.
MYPI2022000054A 2020-07-07 2021-01-28 Solid-free high-density completion fluid and preparation method thereof MY199062A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010647466.6A CN111778002B (en) 2020-07-07 2020-07-07 A kind of solid-free high-density completion fluid and preparation method thereof
PCT/CN2021/074111 WO2022007390A1 (en) 2020-07-07 2021-01-28 Solid-free and high-density completion fluid and preparation method therefor

Publications (1)

Publication Number Publication Date
MY199062A true MY199062A (en) 2023-10-11

Family

ID=72758348

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2022000054A MY199062A (en) 2020-07-07 2021-01-28 Solid-free high-density completion fluid and preparation method thereof

Country Status (3)

Country Link
CN (1) CN111778002B (en)
MY (1) MY199062A (en)
WO (1) WO2022007390A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111778002B (en) * 2020-07-07 2022-02-11 中国海洋石油集团有限公司 A kind of solid-free high-density completion fluid and preparation method thereof
CN115261007B (en) * 2022-06-15 2023-08-04 中海油天津化工研究设计院有限公司 Ocean oil field completion fluid and flowback recycling treatment method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9062238B2 (en) * 2009-06-04 2015-06-23 Rhodia Operations Methods and compositions for viscosifying heavy aqueous brines
CN104910880A (en) * 2015-04-21 2015-09-16 西南石油大学 Leak stopping high-density bound water well killing fluid
CN111073613A (en) * 2018-10-22 2020-04-28 中国石油化工股份有限公司 Solid-free completion fluid, preparation method and application thereof
CN111778002B (en) * 2020-07-07 2022-02-11 中国海洋石油集团有限公司 A kind of solid-free high-density completion fluid and preparation method thereof

Also Published As

Publication number Publication date
CN111778002A (en) 2020-10-16
CN111778002B (en) 2022-02-11
WO2022007390A1 (en) 2022-01-13

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