CA2708799A1 - Gas trap for drilling mud having quick-release separable lower section - Google Patents

Gas trap for drilling mud having quick-release separable lower section Download PDF

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Publication number
CA2708799A1
CA2708799A1 CA 2708799 CA2708799A CA2708799A1 CA 2708799 A1 CA2708799 A1 CA 2708799A1 CA 2708799 CA2708799 CA 2708799 CA 2708799 A CA2708799 A CA 2708799A CA 2708799 A1 CA2708799 A1 CA 2708799A1
Authority
CA
Canada
Prior art keywords
extending
shaft
top member
bottom member
gas
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.)
Granted
Application number
CA 2708799
Other languages
French (fr)
Other versions
CA2708799C (en
Inventor
Terence D. Phillips
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.)
Rigsat Communications Inc
Original Assignee
Rigsat Communications 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 Rigsat Communications Inc filed Critical Rigsat Communications Inc
Priority to CA2708799A priority Critical patent/CA2708799C/en
Publication of CA2708799A1 publication Critical patent/CA2708799A1/en
Application granted granted Critical
Publication of CA2708799C publication Critical patent/CA2708799C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D19/00Degasification of liquids
    • B01D19/0021Degasification of liquids by bringing the liquid in a thin layer
    • B01D19/0026Degasification of liquids by bringing the liquid in a thin layer in rotating vessels or in vessels containing movable parts
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • E21B21/063Arrangements for treating drilling fluids outside the borehole by separating components
    • E21B21/067Separating gases from drilling fluids

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A gas trap apparatus for liberating gas from drilling mud and collecting such gas for analysis. A motor is connected to a rotatable vertical shaft having beater bars thereon, which when the shaft is immersed in drilling mud and rotate, stirs such mud to liberate gas entrained therein. The gas trap is characterized in having a top member and a bottom member which surrounds the vertical shaft and which is releasibly secured to the top member thereof by a quick release mechanism which facilitates rapid detachment of the bottom member from the top member to permit quick access said vertical shaft and beater bars thereon for replacement or servicing. The vertical shaft may further likewise be provided with a quick-release means to allow quick release of the shaft from the motor for easy replacement and servicing of same.

Claims (11)

1. A gas trap apparatus for liberating gas from drilling mud, comprising:

an elongate, vertically-downwardly extending shaft, having stirring means thereon to stimulate and cause circulation of drilling mud when extended into and rotated within drilling mud;

motor means for rotating said downwardly-extending shaft, a top member, situated below said motor means, said shaft passing vertically downwardly through and extending below said top member, having a gas collection port therein for allowing gas liberated from said drilling mud to be collected and withdrawn for analysis;

a bottom member, extending around said shaft; and quick-release coupling means, releasibly coupling said upper portion of said bottom member to said lower portion of said top member, to permit rapid detachment of said bottom member from said top member to thereby allow access to said downwardly-extending shaft and stirring means when same need servicing or replacement.
2. The gas trap apparatus as claimed in claim 1, wherein said quick release coupling means comprises a "U" shaped locking member, which is removably insertable in apertures in each of said top member and said bottom member.
3. The gas trap apparatus as claimed in claim 1, wherein said quick-release coupling means comprises at least one manually-actuated clip which may be easily released to permit detachment of said upper portion of said bottom section from said lower portion of said top section.
4. The gas trap apparatus as claimed in claim 3, wherein said at least one manually-actuated clip comprises :

(i) a plurality of bale members, pivotally secured to said lower portion of said top section about a periphery thereof, and (ii) a plurality of protuberances, extending from said upper portion of said bottom member, engagable with said bale members to releasibly secure said bottom member to said top member.
5. The gas trap apparatus as claimed in claim 3, wherein said at least one manually-actuated clip comprises :

(i) a plurality of bale members, pivotally secured to said lower portion of said top section about a periphery thereof, and (ii) a plurality of protuberances, extending from said upper portion of said bottom member, engagable with said bale members to releasibly secure said bottom member to said top member.
6. The gas trap apparatus as claimed in claim 3, wherein said at least one manually-actuated clip comprises :

(i) a plurality of bale members, pivotally secured to said upper portion of said bottom section about a periphery thereof, and (ii) a plurality of protuberances, extending from said bottom portion of said top member, engagable with said bale members to releasibly secure said bottom member to said top member.
7. The gas trap apparatus as claimed in claim 1, wherein said quick-release coupling means comprises segmented rim means on each of said lower portion of said top member and said upper portion of said bottom member, to permit locked engagement thereof, wherein said upper portion of said bottom member when inserted into and rotated in a first direction about a vertical axis relative to said top member, becomes secured to said top member due to engagement of said respective segmented rim means, and when said bottom member is rotated in an opposite direction about said vertical axis said bottom member may be removed from engagement with said top member.
8. The gas trap apparatus as claimed in any one of the preceding claims, wherein (i) matingly engageable quick release coupling means is further situated on said downwardly-extending shaft and on said motor means, to allow said shaft to be quickly attached and detached from said motor means.
9. The gas trap apparatus as claimed in any one of claims 1-7, wherein (i) matingly engageable quick release coupling means is situated on said downwardly-extending shaft and on radially-outwardly extending members therefrom, to allow said radially-outwardly extending members to be quickly attached and detached from said shaft.
10. A gas trap apparatus for liberating gas from drilling mud, comprising:

an elongate, vertically-downwardly extending rotatable shaft, having radially outwardly-extending bar members adapted when extended into drilling mud and rotated therein to cause stirring of said drilling mud and liberation of gas therefrom;

motor means for rotating said downwardly-extending shaft, quick-release coupling means situated on said downwardly-extending shaft to allow said shaft to be attached and detached from said motor means;

a top member, situated below said motor means, said shaft passing vertically downwardly through and extending below said top member, having a gas collection port therein for allowing gas liberated from said drilling mud to be collected for analysis;

a bottom member, extending around said shaft, having a mud ingress aperture therein and a mud egress aperture therein, and quick-release coupling means, releasibly coupling said upper portion of said bottom member to said lower portion of said top member, to permit rapid detachment of said bottom member from said top member to thereby allow access to said downwardly-extending shaft and stirring means when same need servicing or replacement.
11. The gas trap apparatus as claimed in claim 10, wherein said quick release coupling means on said top member and bottom member comprises a "U" shaped locking member, which is removably insertable in apertures in each of said top member and said bottom member.
CA2708799A 2010-06-30 2010-06-30 Gas trap for drilling mud having quick-release separable lower section Expired - Fee Related CA2708799C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2708799A CA2708799C (en) 2010-06-30 2010-06-30 Gas trap for drilling mud having quick-release separable lower section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2708799A CA2708799C (en) 2010-06-30 2010-06-30 Gas trap for drilling mud having quick-release separable lower section

Publications (2)

Publication Number Publication Date
CA2708799A1 true CA2708799A1 (en) 2011-12-30
CA2708799C CA2708799C (en) 2014-04-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2708799A Expired - Fee Related CA2708799C (en) 2010-06-30 2010-06-30 Gas trap for drilling mud having quick-release separable lower section

Country Status (1)

Country Link
CA (1) CA2708799C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101446120B1 (en) 2014-04-18 2014-10-06 우민기술(주) mud gas separator
CN109736731A (en) * 2017-10-31 2019-05-10 中石化石油工程技术服务有限公司 Multi-parameter Combined Tool logging device
CN111075377A (en) * 2020-01-14 2020-04-28 苏州冠德能源科技有限公司 High-concentration mud gas degassing and collecting device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101446120B1 (en) 2014-04-18 2014-10-06 우민기술(주) mud gas separator
CN109736731A (en) * 2017-10-31 2019-05-10 中石化石油工程技术服务有限公司 Multi-parameter Combined Tool logging device
CN111075377A (en) * 2020-01-14 2020-04-28 苏州冠德能源科技有限公司 High-concentration mud gas degassing and collecting device

Also Published As

Publication number Publication date
CA2708799C (en) 2014-04-08

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Effective date: 20170630