WO2011081812A1 - A method of determining queried fluid cuts along a tubular - Google Patents

A method of determining queried fluid cuts along a tubular Download PDF

Info

Publication number
WO2011081812A1
WO2011081812A1 PCT/US2010/059489 US2010059489W WO2011081812A1 WO 2011081812 A1 WO2011081812 A1 WO 2011081812A1 US 2010059489 W US2010059489 W US 2010059489W WO 2011081812 A1 WO2011081812 A1 WO 2011081812A1
Authority
WO
WIPO (PCT)
Prior art keywords
queried
fluid
determining
flow rate
zones
Prior art date
Application number
PCT/US2010/059489
Other languages
French (fr)
Inventor
Kai Sun
Jesse James Constantine
Original Assignee
Baker Hughes Incorporated
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 Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Priority to BR112012014150A priority Critical patent/BR112012014150A2/en
Publication of WO2011081812A1 publication Critical patent/WO2011081812A1/en

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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements

Definitions

  • [0001] Industries employ tubular systems for transporting multiphase fluids, such as, combinations of water and hydrocarbons, for example, from one location to another. Such systems commonly have multiple zones through which the multiphasic fluids enter the tubular. Each of the zones may produce an unknown amount of water as one of the constituents of the multiphasic fluids. A percentage of water that makes up a fluid flow is commonly referred to as the water cut. Systems and methods that allow operators to gain knowledge regarding the water cut attributable to each zone would be beneficial to operators.
  • a method of determining queried fluid cuts along a tubular includes, determining a first flow rate of a queried fluid produced from a plurality of zones along the tubular, measuring a liquid flow rate produced by a selected zone of the plurality of zones, ceasing production from the selected zone, and determining a second flow rate of the queried fluid produced from the plurality of zones along the tubular minus the selected zone. Then determining a queried fluid cut of the selected zone as a percentage of the liquid flow rate produced by the selected zone that a loss between the first flow rate of the queried fluid and the second flow rate of the queried fluid represents.
  • a method of determining queried fluid cuts along a tubular includes, determining liquid produced by all zones along the tubular, determining a queried fluid cut of the liquid produced by all of the zones, calculating a queried fluid produced by all of the zones, determining liquid produced by a selected zone along the tubular, closing the selected zone, determining liquid produced by all zones except the selected zone, and determining a queried fluid cut of the liquid produced by all zones except the selected zone.
  • a method of identifying a queried fluid cut along a tubular includes, determining a first flow rate of a queried fluid flowing through all open zones, determining a flow rate of liquid through a selected zone, and closing the selected zone, determining a second flow rate of the queried fluid flowing through all open zones. And then attributing a queried fluid cut to the selected zone as a percentage that the difference between the first flow rate of the queried fluid and the second flow rate of the queried fluid is of the flow rate of liquid through the selected zone.
  • FIG. 1 depicts a schematic view of a system for determining queried fluid cuts along a tubular disclosed herein;
  • FIG. 2 depicts a partial flow chart of a method for determining a queried fluid cut of multiple zones along a tubular disclosed herein.
  • a tubular system for determining a queried fluid cut at multiple zones along the tubular is illustrated generally at 10.
  • the tubular system 10 includes, a tubular 14 having a plurality of zones 16A-D distributed longitudinally along the tubular 14 and isolated from one another by seals 20, such as packers, for example.
  • Each of the zones 16A-D have at least one port 18 through a wall 22 of the tubular 14, and at least one valve 26, configured to selectively variably occlude the port(s) 18 of the associated zone 16A-D.
  • the system 10 also includes, a flow rate measuring device 30 configured to measure a total liquid flow rate, Q Uq , flowing through all open zones 16A-D, as well as flow measuring apparatuses 34 distributed along the tubular 14 for measuring flow rates at various points along the tubular 14 including one upstream and one downstream of each of the zones 16A-D.
  • the system 10 includes just one water cut meter 38 located downstream of all of the zones 16A-D.
  • the system 10 is applied downhole in the hydrocarbon recovery industry in a wellbore 42 and the water cut meter 38 is located at surface 46.
  • water cut and phase flow rates are measurable at surface after oil-gas-water separation. Since the system 10 only has the one water cut meter 38 or measurement, the water cut at each zone 16A-D is not directly measurable. Methods disclosed herein, however, allow an operator to determine the water cut, Wcut , that occurs at each of the zones 16A-D.
  • a flow chart 50 illustrates a plurality of steps disclosed herein that facilitate the determination of water cut from each zone 16A-D.
  • the variables used include superscripts to identify the step in which the measurement is made and subscripts to identify the location where the measurement is made.
  • the process starts at step 0 defined as all valves 26 being open and all zones 16A-D producing fluid.
  • Downhole pressure and temperature information is used to adjust the measured rates in standard (pressure/temperature) condition or downhole in-situ pressure/temperature condition or mass- rate condition, as production fluid (especially for hydrocarbons) properties (i.e., volume, density, bubble point, solution gas-oil ratio, etc.) are highly impacted by the in-situ fluid pressure and temperature (Tarek Ahmed, Equations of State and PVT Anal sis).
  • Measurements are made of total liquid flow rate at the surface 46 at step 0, ; water cut of the total liquid flow rate at the surface 46 at step 0, Wciltg ; anc j l qu d flow rate produced by one of the zones 16A at step 0, ⁇ liq-A (zone A in this example). It should be noted that some values could be calculated from other measured values depending upon equipment utilized. For example, if multiphase flow meters are used at the surface 46 to separately measure flow rates of the different liquids, such as, the water flow rate at step 0, wat-S , and the oil flow rate at step 0, x ⁇ oil-S , for example, then the total liquid flow rate at the surface 46 at step 0, , can be calculated with formula (1):
  • Wcut S can be calculated with formula (2):
  • valve 26A that controls occlusion of the zone 16A (the zone being analyzed first), is closed defining step 1. Once closed and flows are stabilized measurements are made of total liquid flow rate at the surface 46 at step
  • This formula may be more easily understood when thought of as first determining the water flow rate produced by all of the zones at step 0, Qu q -s ⁇ CUtg ⁇ ⁇ 6 ⁇ subtracting the water flow rate produced by all of the zones except zone A step 1 (since zone
  • zone A alone, S£ w w c a t-A ⁇
  • the water cut from zone A is then found by dividing this water flow rate produced by zone A by the total liquid produced by zone A, ⁇ £uq-A , which is formula (2) for determining water cut rewritten here as formula (2') for zone A specifically.
  • This method can also be used for conditions having a combined gas-liquid flow near bottom of the wellbore 42.
  • PVT calibration Tarek Ahmed, Equations of State and PVT Analysis
  • zone A If the water cut produced by zone A is calculated to be either a negative number or has a value that is greater than 1 an error has occurred and the process should be repeated after adjusting any settings that may have contributed to or caused such error.

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

A method of identifying a queried fluid cut along a tubular includes, determining a first flow rate of a queried fluid flowing through all open zones, determining a flow rate of liquid through a selected zone, and closing the selected zone, determining a second flow rate of the queried fluid flowing through all open zones, and attributing a queried fluid cut to the selected zone as a percentage that the difference between the first flow rate of the queried fluid and the second flow rate of the queried fluid is of the flow rate of liquid through the selected zone.

Description

A METHOD OF DETERMINING QUERIED FLUID CUTS ALONG A TUBULAR
CROSS REFERENCE TO RELATED APPLICATIONS
This application claims the benefit of the filing date of United States Patent
Application Serial Number 12/638,241 filed December 15, 2009, for "A METHOD OF DETERMINING QUERIED FLUID CUTS ALONG A TUBULAR."
BACKGROUND
[0001] Industries employ tubular systems for transporting multiphase fluids, such as, combinations of water and hydrocarbons, for example, from one location to another. Such systems commonly have multiple zones through which the multiphasic fluids enter the tubular. Each of the zones may produce an unknown amount of water as one of the constituents of the multiphasic fluids. A percentage of water that makes up a fluid flow is commonly referred to as the water cut. Systems and methods that allow operators to gain knowledge regarding the water cut attributable to each zone would be beneficial to operators.
BRIEF DESCRIPTION
[0002] Disclosed herein is a method of determining queried fluid cuts along a tubular. The method includes, determining a first flow rate of a queried fluid produced from a plurality of zones along the tubular, measuring a liquid flow rate produced by a selected zone of the plurality of zones, ceasing production from the selected zone, and determining a second flow rate of the queried fluid produced from the plurality of zones along the tubular minus the selected zone. Then determining a queried fluid cut of the selected zone as a percentage of the liquid flow rate produced by the selected zone that a loss between the first flow rate of the queried fluid and the second flow rate of the queried fluid represents.
[0003] Further disclosed herein is a method of determining queried fluid cuts along a tubular. The method includes, determining liquid produced by all zones along the tubular, determining a queried fluid cut of the liquid produced by all of the zones, calculating a queried fluid produced by all of the zones, determining liquid produced by a selected zone along the tubular, closing the selected zone, determining liquid produced by all zones except the selected zone, and determining a queried fluid cut of the liquid produced by all zones except the selected zone. And then calculating a queried fluid produced by all of the zones except the selected zone, and calculating the queried fluid cut for the selected zone as a difference in the queried fluid produced by all of the zones and the queried fluid produced by all of the zones except the selected zone and dividing by the liquid produced by the selected zone.
[0004] Further disclosed herein is a method of identifying a queried fluid cut along a tubular. The method includes, determining a first flow rate of a queried fluid flowing through all open zones, determining a flow rate of liquid through a selected zone, and closing the selected zone, determining a second flow rate of the queried fluid flowing through all open zones. And then attributing a queried fluid cut to the selected zone as a percentage that the difference between the first flow rate of the queried fluid and the second flow rate of the queried fluid is of the flow rate of liquid through the selected zone.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] The following descriptions should not be considered limiting in any way. With reference to the accompanying drawings, like elements are numbered alike:
[0006] FIG. 1 depicts a schematic view of a system for determining queried fluid cuts along a tubular disclosed herein; and
[0007] FIG. 2 depicts a partial flow chart of a method for determining a queried fluid cut of multiple zones along a tubular disclosed herein.
DETAILED DESCRIPTION
[0008] A detailed description of one or more embodiments of the disclosed apparatus and method are presented herein by way of exemplification and not limitation with reference to the Figures.
[0009] Referring to Figure 1, a tubular system for determining a queried fluid cut at multiple zones along the tubular is illustrated generally at 10. Although the queried fluid could be any of multiple fluids that make up a multiphase fluid, water will be used as the queried fluid illustrated in embodiments disclosed herein. The tubular system 10 includes, a tubular 14 having a plurality of zones 16A-D distributed longitudinally along the tubular 14 and isolated from one another by seals 20, such as packers, for example. Each of the zones 16A-D have at least one port 18 through a wall 22 of the tubular 14, and at least one valve 26, configured to selectively variably occlude the port(s) 18 of the associated zone 16A-D. The system 10 also includes, a flow rate measuring device 30 configured to measure a total liquid flow rate, QUq , flowing through all open zones 16A-D, as well as flow measuring apparatuses 34 distributed along the tubular 14 for measuring flow rates at various points along the tubular 14 including one upstream and one downstream of each of the zones 16A-D. Additionally, a water cut meter 38 is configured to determine water cut, Went = at 5 or the percentage of the total liquid flow rate,
Figure imgf000005_0001
, that is water, Sei-wat■ Alternate embodiments are contemplated wherein water, oil and gas are separated at surface and their flow rates determined separately after which the water cut is determined.
[0010] The system 10 includes just one water cut meter 38 located downstream of all of the zones 16A-D. In the embodiment illustrated herein the system 10 is applied downhole in the hydrocarbon recovery industry in a wellbore 42 and the water cut meter 38 is located at surface 46. Normally for a multi-zone single well producer, water cut and phase flow rates are measurable at surface after oil-gas-water separation. Since the system 10 only has the one water cut meter 38 or measurement, the water cut at each zone 16A-D is not directly measurable. Methods disclosed herein, however, allow an operator to determine the water cut, Wcut , that occurs at each of the zones 16A-D.
[0011] Referring to FIG. 2, a flow chart 50 illustrates a plurality of steps disclosed herein that facilitate the determination of water cut from each zone 16A-D. The variables used include superscripts to identify the step in which the measurement is made and subscripts to identify the location where the measurement is made. The process starts at step 0 defined as all valves 26 being open and all zones 16A-D producing fluid. Downhole pressure and temperature information is used to adjust the measured rates in standard (pressure/temperature) condition or downhole in-situ pressure/temperature condition or mass- rate condition, as production fluid (especially for hydrocarbons) properties (i.e., volume, density, bubble point, solution gas-oil ratio, etc.) are highly impacted by the in-situ fluid pressure and temperature (Tarek Ahmed, Equations of State and PVT Anal sis).
Measurements are made of total liquid flow rate at the surface 46 at step 0,
Figure imgf000005_0002
; water cut of the total liquid flow rate at the surface 46 at step 0, Wciltg ; ancj l qu d flow rate produced by one of the zones 16A at step 0, ^ liq-A (zone A in this example). It should be noted that some values could be calculated from other measured values depending upon equipment utilized. For example, if multiphase flow meters are used at the surface 46 to separately measure flow rates of the different liquids, such as, the water flow rate at step 0, wat-S , and the oil flow rate at step 0, x^oil-S , for example, then the total liquid flow rate at the surface 46 at step 0,
Figure imgf000006_0001
, can be calculated with formula (1):
Qliq-S Qoil-S Q wat-S (1)
Additionally the water cut of the total liquid flow rate at the surface 46 at step 0,
,0
Wcut S: can be calculated with formula (2):
Wcut Q w°at-S
(2)
Q Al liiaq-S
[0012] After the above measurements are made the valve 26A that controls occlusion of the zone 16A (the zone being analyzed first), is closed defining step 1. Once closed and flows are stabilized measurements are made of total liquid flow rate at the surface 46 at step
1, Qliq-S ; water cut of the total liquid flow rate at the surface 46 at step 1, WcUtg ; lne water flow rate at step 1, xZ-wat-S , and the oil flow rate at step 1,
Figure imgf000006_0002
[0013] Values of the foregoing variables can be used in formula (3) to determine water cut of the liquid flow rate produced by zone A at step 0, WcUt^ 5 which also equals the water cut of the liquid flow rate produced by zone A at step 1, WcUt^ since the water cut produced by a zone has been found to be substantially constant regardless of the occlusion of the zone A
Figure imgf000006_0003
[0014] This formula may be more easily understood when thought of as first determining the water flow rate produced by all of the zones at step 0, Quq-s ^CUtg ^ ^6η subtracting the water flow rate produced by all of the zones except zone A step 1 (since zone
A has been closed),
Figure imgf000006_0004
, which equals the water flow rate 0
produced by zone A alone, S£ wwcat-A■ The water cut from zone A is then found by dividing this water flow rate produced by zone A by the total liquid produced by zone A, \£uq-A , which is formula (2) for determining water cut rewritten here as formula (2') for zone A specifically.
Wcut i Q ^w°at—A
A - no (2')
^liq-A
[0015] Application notes regarding formula (3): WcUt^ 5 [s actually the combined water cut of the zones left open (i.e. by closing zone 16A, while leaving the other zones in their original, open, conditions). Another important assumption of formula (3) is to assume that the combined water cut of the zones left open (16B-D) remain the same regardless of whether zone 16A is open or closed. The closing of zone 16A has minimal affect on the wellbore annulus pressure profile, therefore, the zonal water rate change and its impact on the combined water cut, WcUtg 5 js normally negligible. If a measured annulus pressure near bottom of the wellbore 42 has changed significantly after closing the zone 16A, it is suggested to adjust a surface wellhead choke 44 (i.e. decreasing the wellhead choke) to get a similar annulus pressure near bottom of the wellbore 42 as before applying this method to estimate the water cut, Wcut .
[0016] This method can also be used for conditions having a combined gas-liquid flow near bottom of the wellbore 42. However, to avoid too much PVT calibration (Tarek Ahmed, Equations of State and PVT Analysis) and increase the accuracy of this application, it is suggested to use this method with wellbore flowing pressure above oil bubble point. In this way, at downhole, production fluid is in liquid phase flow condition.
[0017] If the water cut produced by zone A is calculated to be either a negative number or has a value that is greater than 1 an error has occurred and the process should be repeated after adjusting any settings that may have contributed to or caused such error.
[0018] The foregoing process can be repeated until all of the zones 16A-D have been closed and water cuts attributed to each of the zones 16A-D has been established. Closing of the zones 16A-D in a sequential manner starting with the zone 16A nearest to the water cut meter 38, at the surface 46 in this embodiment, and moving one at a time toward the zone 16D, furthest from the surface 46, will assure that the flow measurements taken at the surface 46 are correctly attributed to all of the zones 16A-D remaining open and not to the next zone 16B-D in the sequence being closed.
[0019] While the invention has been described with reference to an exemplary embodiment or embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the claims. Also, in the drawings and the description, there have been disclosed exemplary embodiments of the invention and, although specific terms may have been employed, they are unless otherwise stated used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention therefore not being so limited. Moreover, the use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another. Furthermore, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.

Claims

What is claimed is:
1. A method of determining queried fluid cuts along a tubular comprising:
determining a first flow rate of a queried fluid produced from a plurality of zones along the tubular;
measuring a liquid flow rate produced by a selected zone of the plurality of zones; ceasing production from the selected zone;
determining a second flow rate of the queried fluid produced from the plurality of zones along the tubular minus the selected zone; and
determining a queried fluid cut of the selected zone as a percentage of the liquid flow rate produced by the selected zone that a loss between the first flow rate of the queried fluid and the second flow rate of the queried fluid represents.
2. The method of determining queried fluid cuts along a tubular of claim 1, further comprising repeating the foregoing process until all of the plurality of zones have been closed and a queried fluid cut of each zone has been determined.
3. The method of determining queried fluid cuts along a tubular of claim 1, further comprising closing the plurality of zones sequentially.
4. The method of determining queried fluid cuts along a tubular of claim 3, wherein the closing sequentially starts with closing the zone nearest to a queried fluid cut measuring apparatus then continues with closing the zone next nearest to the queried fluid cut measuring apparatus and so on.
5. The method of determining queried fluid cuts along a tubular of claim 1, further comprising ascribing values of queried fluid cuts that are greater than one and less than zero to errors requiring redoing at least a portion of the foregoing process.
6. The method of determining queried fluid cuts along a tubular of claim 1, wherein the determining the first flow rate of the queried fluid produced from the plurality of zones along the tubular further comprises:
measuring a first flow rate produced from the plurality of zones;
measuring a first queried fluid cut of the first flow rate; and
calculating the first flow rate of the queried fluid produced from the plurality of zones.
7. The method of determining queried fluid cuts along a tubular of claim 1, wherein the determining the second flow rate of the queried fluid produced from the plurality of zones along the tubular minus the selected zone further comprises: measuring a second flow rate produced from the plurality of zones minus the selected zone;
measuring a second queried fluid cut of the second flow rate; and
calculating the second flow rate of the queried fluid produced from the plurality of zones minus the selected zone.
8. The method of determining queried fluid cuts along a tubular of claim 1, wherein the queried fluid is water.
9. A method of determining queried fluid cuts along a tubular comprising:
determining liquid produced by all zones along the tubular;
determining a queried fluid cut of the liquid produced by all of the zones;
calculating a queried fluid produced by all of the zones;
determining liquid produced by a selected zone along the tubular;
closing the selected zone;
determining liquid produced by all zones except the selected zone;
determining a queried fluid cut of the liquid produced by all zones except the selected zone; calculating a queried fluid produced by all of the zones except the selected zone; and calculating the queried fluid cut for the selected zone as a difference in the queried fluid produced by all of the zones and the queried fluid produced by all of the zones except the selected zone and dividing by the liquid produced by the selected zone.
10. The method of determining queried fluid cuts along a tubular of claim 9, further comprising repeating the foregoing steps until a queried fluid cut from each zone is determined.
11. A method of identifying a queried fluid cut along a tubular, comprising:
determining a first flow rate of a queried fluid flowing through all open zones;
determining a flow rate of liquid through a selected zone;
closing the selected zone;
determining a second flow rate of the queried fluid flowing through all open zones; and
attributing a queried fluid cut to the selected zone as a percentage that the difference between the first flow rate of the queried fluid and the second flow rate of the queried fluid is of the flow rate of liquid through the selected zone.
PCT/US2010/059489 2009-12-15 2010-12-08 A method of determining queried fluid cuts along a tubular WO2011081812A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR112012014150A BR112012014150A2 (en) 2009-12-15 2010-12-08 method for determining surveyed fluid cuts along a tubular

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/638,241 US20110139446A1 (en) 2009-12-15 2009-12-15 Method of Determining Queried Fluid Cuts Along a Tubular
US12/638,241 2009-12-15

Publications (1)

Publication Number Publication Date
WO2011081812A1 true WO2011081812A1 (en) 2011-07-07

Family

ID=44141639

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/059489 WO2011081812A1 (en) 2009-12-15 2010-12-08 A method of determining queried fluid cuts along a tubular

Country Status (3)

Country Link
US (1) US20110139446A1 (en)
BR (1) BR112012014150A2 (en)
WO (1) WO2011081812A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190768A (en) * 1978-06-29 1980-02-26 Texaco Inc. Determining the water cut and water salinity in an oil-water flow stream by measuring the sulfur content of the produced oil
US4499418A (en) * 1982-08-05 1985-02-12 Texaco Inc. Water cut monitoring means and method
US5287752A (en) * 1991-04-26 1994-02-22 Shell Oil Company Measurment of gas and liquid flowrates and watercut of multiphase mixtures of oil, water and gas
US5625293A (en) * 1995-05-01 1997-04-29 Marrelli; John D. Determination of the watercut of a multiphase flow directly from measured microwave frequency dielectric properties

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733907A (en) * 1972-01-24 1973-05-22 Varian Associates Valve structure for collecting multiple samples
US3876003A (en) * 1973-10-29 1975-04-08 Schlumberger Technology Corp Drill stem testing methods and apparatus utilizing inflatable packer elements
US4320800A (en) * 1979-12-14 1982-03-23 Schlumberger Technology Corporation Inflatable packer drill stem testing system
US4685522A (en) * 1983-12-05 1987-08-11 Otis Engineering Corporation Well production controller system
US5697445A (en) * 1995-09-27 1997-12-16 Natural Reserves Group, Inc. Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means
US8682589B2 (en) * 1998-12-21 2014-03-25 Baker Hughes Incorporated Apparatus and method for managing supply of additive at wellsites
US6328103B1 (en) * 1999-08-19 2001-12-11 Halliburton Energy Services, Inc. Methods and apparatus for downhole completion cleanup
US6318156B1 (en) * 1999-10-28 2001-11-20 Micro Motion, Inc. Multiphase flow measurement system
US6543540B2 (en) * 2000-01-06 2003-04-08 Baker Hughes Incorporated Method and apparatus for downhole production zone
AU2001293809A1 (en) * 2000-09-12 2002-03-26 Sofitech N.V. Evaluation of multilayer reservoirs
US6613376B2 (en) * 2001-03-12 2003-09-02 Par-Way Group, Inc. Storage stable pan release coating and cleaner
US6622554B2 (en) * 2001-06-04 2003-09-23 Halliburton Energy Services, Inc. Open hole formation testing
US6945095B2 (en) * 2003-01-21 2005-09-20 Weatherford/Lamb, Inc. Non-intrusive multiphase flow meter
US6910388B2 (en) * 2003-08-22 2005-06-28 Weatherford/Lamb, Inc. Flow meter using an expanded tube section and sensitive differential pressure measurement
US7004252B2 (en) * 2003-10-14 2006-02-28 Schlumberger Technology Corporation Multiple zone testing system
US7343983B2 (en) * 2004-02-11 2008-03-18 Presssol Ltd. Method and apparatus for isolating and testing zones during reverse circulation drilling
US7322417B2 (en) * 2004-12-14 2008-01-29 Schlumberger Technology Corporation Technique and apparatus for completing multiple zones
US7455114B2 (en) * 2005-01-25 2008-11-25 Schlumberger Technology Corporation Snorkel device for flow control
AU2006268266B2 (en) * 2005-07-07 2011-12-08 Expro Meters, Inc. Wet gas metering using a differential pressure based flow meter with a sonar based flow meter
US7980306B2 (en) * 2005-09-01 2011-07-19 Schlumberger Technology Corporation Methods, systems and apparatus for coiled tubing testing
BRPI0713448B1 (en) * 2006-06-26 2019-03-06 Exxonmobil Upstream Research Company METHOD FOR ALLOCATING A PREDICTED FINAL FLOW FOR AN INDIVIDUAL ZONE AND SYSTEM
US7415357B1 (en) * 2007-03-07 2008-08-19 Honeywell International Inc. Automated oil well test classification
US20080257544A1 (en) * 2007-04-19 2008-10-23 Baker Hughes Incorporated System and Method for Crossflow Detection and Intervention in Production Wellbores
US7849920B2 (en) * 2007-12-20 2010-12-14 Schlumberger Technology Corporation System and method for optimizing production in a well

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190768A (en) * 1978-06-29 1980-02-26 Texaco Inc. Determining the water cut and water salinity in an oil-water flow stream by measuring the sulfur content of the produced oil
US4499418A (en) * 1982-08-05 1985-02-12 Texaco Inc. Water cut monitoring means and method
US5287752A (en) * 1991-04-26 1994-02-22 Shell Oil Company Measurment of gas and liquid flowrates and watercut of multiphase mixtures of oil, water and gas
US5625293A (en) * 1995-05-01 1997-04-29 Marrelli; John D. Determination of the watercut of a multiphase flow directly from measured microwave frequency dielectric properties

Also Published As

Publication number Publication date
US20110139446A1 (en) 2011-06-16
BR112012014150A2 (en) 2016-05-17

Similar Documents

Publication Publication Date Title
AU2009257758B2 (en) Method of measuring multiphase flow
EP3289319B1 (en) Multiphase flow meters and related methods
EP2855840B1 (en) Dual differential pressure multiphase flow meter
US9777555B2 (en) Predictive flow assurance assessment method and system
US20040035577A1 (en) Downhole flow meter
US11504648B2 (en) Well clean-up monitoring technique
EP2317073B1 (en) An instrumented tubing and method for determining a contribution to fluid production
EP3365528B1 (en) Method and system for determining the production rate of fluids in a gas well
US11280141B2 (en) Virtual multiphase flowmeter system
US9057252B2 (en) Product sampling system within subsea tree
BR112020004652B1 (en) APPARATUS, SYSTEM AND METHOD FOR DETECTING A FRACTION OF A COMPONENT IN A FLUID
Jadid Performance evaluation of virtual flow metering models and its application to metering backup and production allocation
WO2011081812A1 (en) A method of determining queried fluid cuts along a tubular
AU2021284169B2 (en) Flow rate optimizer
US10908007B1 (en) Multiphase flow metering system for horizontal well compartments
NO347308B1 (en) System and method for monitoring the content of a multiphase flow
Ali et al. A novel interpretation approach for production logging
NO347216B1 (en) An apparatus, a production string comprising the apparatus, and a method for estimating a production flow rate at a certain position of a well
WO2023211569A1 (en) Downhole 3-phase flow measurement using speed of sound above and below the bubble-point pressure

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10841461

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010841461

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112012014150

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112012014150

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20120612