GB1453203A - Motion compensated blowout and lost circulation detection - Google Patents

Motion compensated blowout and lost circulation detection

Info

Publication number
GB1453203A
GB1453203A GB4245374A GB4245374A GB1453203A GB 1453203 A GB1453203 A GB 1453203A GB 4245374 A GB4245374 A GB 4245374A GB 4245374 A GB4245374 A GB 4245374A GB 1453203 A GB1453203 A GB 1453203A
Authority
GB
United Kingdom
Prior art keywords
signal
drilling fluid
vessel
modified
flow
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.)
Expired
Application number
GB4245374A
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.)
Offshore Co
Original Assignee
Offshore Co
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 Offshore Co filed Critical Offshore Co
Publication of GB1453203A publication Critical patent/GB1453203A/en
Expired 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)

Abstract

1453203 Boring earth etc OFFSHORE CO 30 Sept 1974 [4 Oct 1973 26 Sept 1974] 42453/74 Heading E1F A method of detecting the commencement of blowouts or loss of drilling fluid in a subaqueous well hole 6 connected through risers 9 with a floating vessel 4 includes the steps of detecting the rate of flow of the drilling fluid back to the mud system 24 aboard the vessel 4 and generating a signal proportional thereto, modifying this signal to compensate instantaneously for the change in the volume of the flow path of the drilling fluid caused by the heaving of the vessel 4, and comparing the modified signal with the rate of flow of the drilling fluid into the well hole. As described the rates of flow of the drilling fluid entering and leaving the well hole are measured by flow meters 31 and 30 respectively. To accommodate the heaving motion of the vessel 4 the riser 9 has a telescopic section 11 and the drilling rod 15 has a telescopic sub 20, the riser 9 being tensioned by cables 32 (only one shown) fixed at their ends to the vessel 4 and to the lower portion 13 of the riser 9 and passing over sheaves 36 attached to piston rods 35 extending from cylinders 34. The heaving motion of the vessel is measured by a transducer (not shown) operated by one of the piston rods 35 by means of arm 37, cable 38 and sheave 39. In a first embodiment the outputs of the flow meters 30 and 31 are subtracted to produce a signal which is then modified by the signal from the transducer to compensate for the change in volume of the flow path of the drilling fluid caused by the heaving motion of the vessel, and this modified signal is fed to a chart recorder. Under normal conditions this modified signal is zero, an increase in the signal indicating the commencement of a blowout and a decrease in the signal indicating a loss of drilling fluid. An alarm may be sounded if the modified signal exceeds preselected threshold limits. In a second embodiment the output of flowmeter 30 is modified by the signal from the transducer to compensate for the heaving of the vessel and this modified signal is fed to a chart recorder. If the drilling fluid flows into the well at a constant rate variations in the modified signal are sufficient to indicate the commencement of a blowout or loss of drilling fluid. Otherwise the output of flowmeter 31 is also fed to the chart recorder and the two tracings can be compared to detect any difference between them.
GB4245374A 1973-10-04 1974-09-30 Motion compensated blowout and lost circulation detection Expired GB1453203A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40338073A 1973-10-04 1973-10-04
US508883A US3910110A (en) 1973-10-04 1974-09-26 Motion compensated blowout and loss circulation detection

Publications (1)

Publication Number Publication Date
GB1453203A true GB1453203A (en) 1976-10-20

Family

ID=27018265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4245374A Expired GB1453203A (en) 1973-10-04 1974-09-30 Motion compensated blowout and lost circulation detection

Country Status (3)

Country Link
US (1) US3910110A (en)
GB (1) GB1453203A (en)
NL (1) NL7412994A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142679A (en) * 1983-06-23 1985-01-23 Teleco Oilfield Services Inc Method and apparatus for borehole fluid influx detection
GB2273512A (en) * 1992-12-12 1994-06-22 Timothy Peter Blatch Compensation for mud flow indicators

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063602A (en) * 1975-08-13 1977-12-20 Exxon Production Research Company Drilling fluid diverter system
US3976148A (en) * 1975-09-12 1976-08-24 The Offshore Company Method and apparatus for determining onboard a heaving vessel the flow rate of drilling fluid flowing out of a wellhole and into a telescoping marine riser connecting between the wellhouse and the vessel
US4065747A (en) * 1975-11-28 1977-12-27 Bunker Ramo Corporation Acoustical underwater communication system for command control and data
US4099582A (en) * 1976-09-03 1978-07-11 Martin-Decker Company, A Division Of Gardner-Denver Drilling fluid compensation device
US4208906A (en) * 1978-05-08 1980-06-24 Interstate Electronics Corp. Mud gas ratio and mud flow velocity sensor
US4273212A (en) * 1979-01-26 1981-06-16 Westinghouse Electric Corp. Oil and gas well kick detector
US4282939A (en) * 1979-06-20 1981-08-11 Exxon Production Research Company Method and apparatus for compensating well control instrumentation for the effects of vessel heave
US4440239A (en) * 1981-09-28 1984-04-03 Exxon Production Research Co. Method and apparatus for controlling the flow of drilling fluid in a wellbore
US4527425A (en) * 1982-12-10 1985-07-09 Nl Industries, Inc. System for detecting blow out and lost circulation in a borehole
US4733232A (en) * 1983-06-23 1988-03-22 Teleco Oilfield Services Inc. Method and apparatus for borehole fluid influx detection
US4553429A (en) * 1984-02-09 1985-11-19 Exxon Production Research Co. Method and apparatus for monitoring fluid flow between a borehole and the surrounding formations in the course of drilling operations
US4566318A (en) * 1984-03-30 1986-01-28 Nl Industries, Inc. Method for optimizing the tripping velocity of a drill string
US4815536A (en) * 1985-03-19 1989-03-28 Noel Carroll Analysis of multi-phase mixtures
US4610161A (en) * 1985-07-05 1986-09-09 Exxon Production Research Co. Method and apparatus for determining fluid circulation conditions in well drilling operations
GB8929246D0 (en) * 1989-12-22 1990-02-28 Electro Flow Controls Ltd A gas detection system
EP0498128B1 (en) * 1991-02-07 1995-02-22 Sedco Forex Technology Inc. Method for determining fluid influx or loss in drilling from floating rigs
US5163029A (en) * 1991-02-08 1992-11-10 Teleco Oilfield Services Inc. Method for detection of influx gas into a marine riser of an oil or gas rig
US5205166A (en) * 1991-08-07 1993-04-27 Schlumberger Technology Corporation Method of detecting fluid influxes
FR2682715A1 (en) * 1991-10-21 1993-04-23 Elf Aquitaine Gas inrush detector
US6499540B2 (en) * 2000-12-06 2002-12-31 Conoco, Inc. Method for detecting a leak in a drill string valve
BRPI0517922A (en) * 2004-11-03 2008-10-21 Shell Int Research system for retrofitting a sensor and sensor communication system for monitoring an installed structural element, and method for monitoring physical changes in an underwater element
GB2478119A (en) * 2010-02-24 2011-08-31 Managed Pressure Operations Llc A drilling system having a riser closure mounted above a telescopic joint
US8347982B2 (en) * 2010-04-16 2013-01-08 Weatherford/Lamb, Inc. System and method for managing heave pressure from a floating rig
CN103154379A (en) * 2010-10-21 2013-06-12 科诺科菲利浦公司 Ice worthy jack-up drilling unit with telescoping riser
GB2490156A (en) 2011-04-21 2012-10-24 Managed Pressure Operations Slip joint for a riser in an offshore drilling system
BR112015007504A2 (en) * 2012-10-05 2017-07-04 Halliburton Energy Services Inc incoming flow detection and loss while drilling from floating vessel
EP2806100A1 (en) * 2013-05-24 2014-11-26 Geoservices Equipements Method for monitoring the drilling of a well using a floating drilling rig and associated monitoring system
GB2521374A (en) 2013-12-17 2015-06-24 Managed Pressure Operations Drilling system and method of operating a drilling system
GB2521373A (en) 2013-12-17 2015-06-24 Managed Pressure Operations Apparatus and method for degassing drilling fluid
AU2015202590B2 (en) * 2014-05-13 2017-02-16 Weatherford Technology Holdings, Llc Marine diverter system with real time kick or loss detection

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760891A (en) * 1972-05-19 1973-09-25 Offshore Co Blowout and lost circulation detector
US3811322A (en) * 1972-09-25 1974-05-21 Offshore Co Method and apparatus for monitoring return mud flow

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142679A (en) * 1983-06-23 1985-01-23 Teleco Oilfield Services Inc Method and apparatus for borehole fluid influx detection
GB2273512A (en) * 1992-12-12 1994-06-22 Timothy Peter Blatch Compensation for mud flow indicators

Also Published As

Publication number Publication date
US3910110A (en) 1975-10-07
NL7412994A (en) 1975-04-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee