US20090007650A1 - Method and Apparatus for Wellsite Verification of Properties of a Fluid - Google Patents
Method and Apparatus for Wellsite Verification of Properties of a Fluid Download PDFInfo
- Publication number
- US20090007650A1 US20090007650A1 US11/772,839 US77283907A US2009007650A1 US 20090007650 A1 US20090007650 A1 US 20090007650A1 US 77283907 A US77283907 A US 77283907A US 2009007650 A1 US2009007650 A1 US 2009007650A1
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- US
- United States
- Prior art keywords
- fluid
- meter
- delivery system
- reference meter
- wellsite
- 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.)
- Abandoned
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000012795 verification Methods 0.000 title claims abstract description 12
- 239000000654 additive Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 7
- 230000000638 stimulation Effects 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 231100001261 hazardous Toxicity 0.000 claims description 3
- 231100000331 toxic Toxicity 0.000 claims description 2
- 230000002588 toxic effect Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/2607—Surface equipment specially adapted for fracturing operations
Definitions
- Bucket testing is the current standard practice for verifying the accuracy and flow rates of a fluid delivery system for blending for downhole use.
- the equipment operator turns on the system and fills a 5-gallon bucket, checking the fill time with a stopwatch. The operator then compares the time on the stopwatch with an electronic readout from a flowmeter in that system.
- Bucket testing is a low-tech method of testing. Because the operator must rely on the stopwatch, and a subjective interpretation of when the bucket is full, bucket testing is likely to provide inaccurate readings. Further, when hazardous chemicals are involved, the operator and other personnel are exposed to corrosive, flammable, and/or toxic fluid. Additionally, bucket testing can be environmentally unfriendly and/or wasteful, since fluid must leave the system for this verification.
- the present invention relates generally to the verification of properties of a fluid. More specifically, the present invention provides a method and apparatus for verification at a wellsite.
- a method for wellsite verification of at least one property of at least one fluid comprises: providing a fluid delivery system at the wellsite; providing at least one reference meter at the wellsite; and measuring the property of the fluid within the fluid delivery system, using the reference meter.
- the measuring step may be performed prior to or during dispatch of the fluid into a well bore.
- the reference meter may be a high precision meter.
- an apparatus for wellsite verification of at least one property of at least one fluid comprises: a fluid delivery system and at least one reference meter for measuring the property of the fluid within the fluid delivery system.
- the fluid delivery system and the reference meter are both located at the wellsite.
- a trailer may support the fluid delivery system and the reference meter.
- FIG. 1 is a schematic view of a system for verifying properties of a fluid at a wellsite.
- FIG. 2A is a top view of an exemplary embodiment of the system of FIG. 1 .
- FIG. 2B is a side view of the exemplary embodiment shown in FIG. 2A .
- FIG. 3 is an exemplary embodiment of the system of FIG. 1 .
- FIG. 1 shown therein is schematic view of a wellsite verification system 100 , which may be assembled on site, or pre-assembled and transported to the wellsite, depending on the specific job.
- the system 100 may be assembled on a trailer 230 (shown in FIG. 2 ) for transport to and from the site.
- the system 100 may include system meter 110 and reference meter 120 , which may each measure any of a number of properties of a fluid flowing therethrough, without the need for the fluid to be removed from system 100 . If the fluid is hazardous, such as a corrosive, flammable, or toxic chemical, keeping it within system 100 is advantageous for a number of reasons. Personnel are not exposed to the fluid, nor is the fluid unnecessarily exposed to the environment.
- System meter 110 may be any type of meter typically used in a downhole operation.
- system meter 110 may be a Coriolis flowmeter.
- System 100 may include tank 130 to initially hold the fluid, until pump 140 causes the fluid within tank 130 to flow out and into system meter 110 . Fluid may then pass through first valve 150 .
- First valve 150 may be any of a number of different valves. For example, it may be a 3 way ball valve with one outlet that allows fluid to flow toward check valve 160 , and an alternative outlet that allows fluid to flow toward reference meter 120 . After passing through reference meter 120 , fluid may flow through second valve 180 , into tank return 190 or to check valve 160 .
- Reference meter 120 may be removably attached to system 100 via first dry disconnect 200 and second dry disconnect 210 , allowing reference meter 120 to be taken completely off line for inspection and/or recalibration.
- Reference meter 120 may be independent of the fluid delivery system.
- Reference meter 120 may be a Coriolis or any other type of reference meter suitable for use with the specific fluid and for the specific properties for which measurement is desired. In any event, it is desirable that reference meter 120 be suitable for use at the wellsite.
- One purpose of reference meter 120 may be to establish the performance accuracy of system meter 110 to some tolerance.
- reference meter 120 may be a high precision meter which has been calibrated and accuracy documented by a competent authority certificate. Reference meter 120 may also be certified for structural integrity.
- Reference meter 120 may follow reference meter 120 with information as to its accuracy, who performed the testing and calibration and when the last test was performed. For certain applications, reference meter 120 may also meet Zone 2, ATEX guidelines for equipment used in hazardous area environments and be certified as such. Each reference meter 120 may be physically tagged for its overall accuracy, mass accuracy, density accuracy, meter serial number and date of calibration. Also on the tag may be the institute whose standard was used for calibration. For example, the tag may indicate National Institute for Standards and Technology (NIST). In another embodiment, reference meter 120 may be tagged for sensor serial number, transmitter serial number, calibration date, calibration standard institute, flow accuracy, density accuracy, and repeatability.
- NIST National Institute for Standards and Technology
- reference meter 120 has a calibration that has been determined against a standard before it is installed in series with system meter 110 , and comparative readings are taken. While reference meter 120 may be a derivation of a master meter prover, reference meter 120 may alternatively be any type of reference meter, including a mechanical displacement prover (“pipe prover”) or a positive displacement meter, such as those used for crude oil and petroleum products. Liquid provers, and more specifically pipe provers allow for in-place testing of system meter 110 , including the fluid and the flow effects in system 100 .
- Check valve 160 may be provided to prevent back flow of other process fluids into the fluid delivery system of system 100 .
- Check valve 160 may be any type typically used in a stimulation operation. As shown in this embodiment, check valve 160 flows into process line 170 . However, check valve 160 may flow into any of a number of lines.
- the operator takes measurements using system meter 110 and compares them with measurements taken using reference meter 120 . Desirably, this is done prior to dispatching the fluid into the well bore. However, comparisons may be made during dispatch, or after the fluid is downhole, with any required adjustments to pump 140 , or any other component of system 100 taking place as soon as practical, under the circumstances. While measurement of flowrate is most common, system 100 may also be used to measure density and/or specific gravity.
- system 100 may be mounted on trailer 230 , and include liquid additives in tanks 130 a - 130 g, and flush water in tank 130 h.
- reference meter 120 is not integral with system 100 . Rather, reference meter 120 (shown in FIG. 1 ) may be connected at reference meter station 240 after system 100 is on location.
- Reference meter 120 may be used with any existing chemical additive system, in which case reference meter 120 is added to the existing system to alleviate the need for bucket testing. This creates a safer, more accurate, and more environmentally friendly system.
- System 100 may be used for verification in any type of onsite oilfield operation, such as, but not limited to, acid blending and mixing, blending or mixing for fracturing chemicals, or any other chemical blending operation.
- System 100 may be used in a number of different applications where bucket testing is currently used, including stimulation, mudding, and cementing operations. More specifically, system 100 may be used for fracturing and/or acidizing operations.
- System 100 and more particularly reference meter 120 may be placed wherever a meter is typically used, including within an on-the-fly mixing operation. In this type of operation, system 100 is desirably be used prior to mixing the chemicals. However, system 100 may alternatively be used during mixing.
- the procedure, process, or system for verifying a fluid delivery system accuracy for oilwell stimulation fluids that involves reference meter 120 may apply to any application where chemicals are required to be added into a blending or mixing process.
- a blending process where one or more liquid additives must be metered into a blended fluid or device for blending the fluid and where the system meter and/or pump must be verified for accuracy.
- Some applications may include, but are not limited to, oilfield stimulation blenders, liquid additive delivery trucks, trailers, and/or skids.
- Other applications may include any process where a “bucket test” is the current standard for verifying accuracy of the fluid delivery system.
- liquid additive systems for offshore applications In this case, a skid may replace trailer 230 and a stimulation vessel would attach to a platform.
- the procedure, process, or system involving reference meter 120 may also apply to applications where chemicals are being transferred from one liquid additive system to another. For example, transferring liquid additives from one container to another regardless of whether the containers are within one fluid delivery system or other fluid delivery systems.
- Reference meter 120 may also be used as a backup to system meter 110 , which may be a standard fluid delivery meter installed into a fluid delivery system.
Abstract
A method for wellsite verification of properties of a fluid may include providing a fluid delivery system at the wellsite; providing at least one reference meter at the wellsite; and measuring the property of the fluid within the fluid delivery system, using the reference meter. The measuring step may be performed prior to or during dispatch of the fluid into a well bore. The reference meter may be a high precision meter. An apparatus for wellsite verification of at least one property of at least one fluid may include a fluid delivery system and at least one reference meter for measuring the property of the fluid within the fluid delivery system. The fluid delivery system and the reference meter may both be located at the wellsite. A trailer may support the fluid delivery system and the reference meter.
Description
- “Bucket testing” is the current standard practice for verifying the accuracy and flow rates of a fluid delivery system for blending for downhole use. The equipment operator turns on the system and fills a 5-gallon bucket, checking the fill time with a stopwatch. The operator then compares the time on the stopwatch with an electronic readout from a flowmeter in that system. Bucket testing is a low-tech method of testing. Because the operator must rely on the stopwatch, and a subjective interpretation of when the bucket is full, bucket testing is likely to provide inaccurate readings. Further, when hazardous chemicals are involved, the operator and other personnel are exposed to corrosive, flammable, and/or toxic fluid. Additionally, bucket testing can be environmentally unfriendly and/or wasteful, since fluid must leave the system for this verification.
- The present invention relates generally to the verification of properties of a fluid. More specifically, the present invention provides a method and apparatus for verification at a wellsite.
- In one embodiment of the present invention, a method for wellsite verification of at least one property of at least one fluid comprises: providing a fluid delivery system at the wellsite; providing at least one reference meter at the wellsite; and measuring the property of the fluid within the fluid delivery system, using the reference meter. The measuring step may be performed prior to or during dispatch of the fluid into a well bore. The reference meter may be a high precision meter.
- In another embodiment of the present invention, an apparatus for wellsite verification of at least one property of at least one fluid comprises: a fluid delivery system and at least one reference meter for measuring the property of the fluid within the fluid delivery system. In this embodiment, the fluid delivery system and the reference meter are both located at the wellsite. A trailer may support the fluid delivery system and the reference meter.
-
FIG. 1 is a schematic view of a system for verifying properties of a fluid at a wellsite. -
FIG. 2A is a top view of an exemplary embodiment of the system ofFIG. 1 . -
FIG. 2B is a side view of the exemplary embodiment shown inFIG. 2A . -
FIG. 3 is an exemplary embodiment of the system ofFIG. 1 . - Referring now to
FIG. 1 , shown therein is schematic view of awellsite verification system 100, which may be assembled on site, or pre-assembled and transported to the wellsite, depending on the specific job. For example, thesystem 100 may be assembled on a trailer 230 (shown inFIG. 2 ) for transport to and from the site. Thesystem 100 may includesystem meter 110 andreference meter 120, which may each measure any of a number of properties of a fluid flowing therethrough, without the need for the fluid to be removed fromsystem 100. If the fluid is hazardous, such as a corrosive, flammable, or toxic chemical, keeping it withinsystem 100 is advantageous for a number of reasons. Personnel are not exposed to the fluid, nor is the fluid unnecessarily exposed to the environment. -
System meter 110 may be any type of meter typically used in a downhole operation. For example,system meter 110 may be a Coriolis flowmeter.System 100 may includetank 130 to initially hold the fluid, untilpump 140 causes the fluid withintank 130 to flow out and intosystem meter 110. Fluid may then pass throughfirst valve 150.First valve 150 may be any of a number of different valves. For example, it may be a 3 way ball valve with one outlet that allows fluid to flow towardcheck valve 160, and an alternative outlet that allows fluid to flow towardreference meter 120. After passing throughreference meter 120, fluid may flow throughsecond valve 180, into tank return 190 or to checkvalve 160. -
Reference meter 120 may be removably attached tosystem 100 via firstdry disconnect 200 and seconddry disconnect 210, allowingreference meter 120 to be taken completely off line for inspection and/or recalibration.Reference meter 120 may be independent of the fluid delivery system.Reference meter 120 may be a Coriolis or any other type of reference meter suitable for use with the specific fluid and for the specific properties for which measurement is desired. In any event, it is desirable thatreference meter 120 be suitable for use at the wellsite. One purpose ofreference meter 120 may be to establish the performance accuracy ofsystem meter 110 to some tolerance. For example,reference meter 120 may be a high precision meter which has been calibrated and accuracy documented by a competent authority certificate.Reference meter 120 may also be certified for structural integrity. Documentation may followreference meter 120 with information as to its accuracy, who performed the testing and calibration and when the last test was performed. For certain applications,reference meter 120 may also meet Zone 2, ATEX guidelines for equipment used in hazardous area environments and be certified as such. Eachreference meter 120 may be physically tagged for its overall accuracy, mass accuracy, density accuracy, meter serial number and date of calibration. Also on the tag may be the institute whose standard was used for calibration. For example, the tag may indicate National Institute for Standards and Technology (NIST). In another embodiment,reference meter 120 may be tagged for sensor serial number, transmitter serial number, calibration date, calibration standard institute, flow accuracy, density accuracy, and repeatability. - Some exemplary reference meters are covered in the American Petroleum Institute Manual of Petroleum Measurement Standards. In particular, Chapter 4 deals with “proving systems,” section 5 deals with “master-meter provers.” In this embodiment,
reference meter 120 has a calibration that has been determined against a standard before it is installed in series withsystem meter 110, and comparative readings are taken. Whilereference meter 120 may be a derivation of a master meter prover,reference meter 120 may alternatively be any type of reference meter, including a mechanical displacement prover (“pipe prover”) or a positive displacement meter, such as those used for crude oil and petroleum products. Liquid provers, and more specifically pipe provers allow for in-place testing ofsystem meter 110, including the fluid and the flow effects insystem 100. -
Check valve 160 may be provided to prevent back flow of other process fluids into the fluid delivery system ofsystem 100.Check valve 160 may be any type typically used in a stimulation operation. As shown in this embodiment,check valve 160 flows intoprocess line 170. However,check valve 160 may flow into any of a number of lines. - In an exemplary embodiment, the operator takes measurements using
system meter 110 and compares them with measurements taken usingreference meter 120. Desirably, this is done prior to dispatching the fluid into the well bore. However, comparisons may be made during dispatch, or after the fluid is downhole, with any required adjustments to pump 140, or any other component ofsystem 100 taking place as soon as practical, under the circumstances. While measurement of flowrate is most common,system 100 may also be used to measure density and/or specific gravity. - Referring now to
FIGS. 2A , 2B and 3,system 100 may be mounted ontrailer 230, and include liquid additives intanks 130 a-130 g, and flush water intank 130 h. In this embodiment,reference meter 120 is not integral withsystem 100. Rather, reference meter 120 (shown inFIG. 1 ) may be connected atreference meter station 240 aftersystem 100 is on location. -
Reference meter 120 may be used with any existing chemical additive system, in whichcase reference meter 120 is added to the existing system to alleviate the need for bucket testing. This creates a safer, more accurate, and more environmentally friendly system.System 100 may be used for verification in any type of onsite oilfield operation, such as, but not limited to, acid blending and mixing, blending or mixing for fracturing chemicals, or any other chemical blending operation.System 100 may be used in a number of different applications where bucket testing is currently used, including stimulation, mudding, and cementing operations. More specifically,system 100 may be used for fracturing and/or acidizing operations. -
System 100, and more particularlyreference meter 120 may be placed wherever a meter is typically used, including within an on-the-fly mixing operation. In this type of operation,system 100 is desirably be used prior to mixing the chemicals. However,system 100 may alternatively be used during mixing. - The procedure, process, or system for verifying a fluid delivery system accuracy for oilwell stimulation fluids that involves
reference meter 120 may apply to any application where chemicals are required to be added into a blending or mixing process. For example, a blending process where one or more liquid additives must be metered into a blended fluid or device for blending the fluid and where the system meter and/or pump must be verified for accuracy. Some applications may include, but are not limited to, oilfield stimulation blenders, liquid additive delivery trucks, trailers, and/or skids. Other applications may include any process where a “bucket test” is the current standard for verifying accuracy of the fluid delivery system. For example, liquid additive systems for offshore applications. In this case, a skid may replacetrailer 230 and a stimulation vessel would attach to a platform. - The procedure, process, or system involving
reference meter 120 may also apply to applications where chemicals are being transferred from one liquid additive system to another. For example, transferring liquid additives from one container to another regardless of whether the containers are within one fluid delivery system or other fluid delivery systems. -
Reference meter 120 may also be used as a backup tosystem meter 110, which may be a standard fluid delivery meter installed into a fluid delivery system. - Therefore, the present invention is well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. The particular embodiments disclosed above are illustrative only, as the present invention may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. For example, while
system meter 110 is shown betweenpump 140 andreference meter 120,system meter 110, andreference meter 120 could each be placed in any of a number of locations. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. It is therefore evident that the particular illustrative embodiments disclosed above may be altered or modified and all such variations are considered within the scope and spirit of the present invention. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the patentee.
Claims (31)
1. A method for wellsite verification of at least one property of at least one fluid, comprising:
providing a fluid delivery system at the wellsite;
providing at least one reference meter at the wellsite; and
measuring the property of a fluid within the fluid delivery system, using the reference meter.
2. The method of claim 1 , wherein the measuring step is performed prior to dispatching the fluid into a well bore.
3. The method of claim 1 , wherein the measuring step is performed during the dispatch of the fluid into a well bore.
4. The method of claim 1 , wherein the reference meter is a high precision meter.
5. The method of claim 1 , wherein the reference meter is independent of the fluid delivery system.
6. The method of claim 1 , wherein the fluid delivery system includes a system meter, the method further comprising measuring the property of the fluid with the system meter and verifying the accuracy of the system meter using the measurements from the reference meter.
7. The method of claim 6 , further comprising making one or more adjustments to the system meter.
8. The method of claim 1 , wherein the fluid delivery system includes a pump, the method further comprising verifying the accuracy of the pump using the measurements from the reference meter.
9. The method of claim 8 , further comprising making one or more adjustments to the pump.
10. The method of claim 1 , wherein the fluid is hazardous.
11. The method of claim 10 , wherein the fluid is corrosive.
12. The method of claim 10 , wherein the fluid is flammable.
13. The method of claim 10 , wherein the fluid is toxic.
14. The method of claim 1 , wherein the fluid is a stimulation fluid.
15. The method of claim 14 , wherein the fluid is a liquid additive.
16. The method of claim 1 , wherein the property comprises flowrate.
17. The method of claim 1 , wherein the property comprises density.
18. The method of claim 1 , wherein the property comprises specific gravity.
19. An apparatus for wellsite verification of at least one property of at least one fluid, comprising:
a fluid delivery system; and
at least one reference meter for measuring the property of the fluid within the fluid delivery system;
wherein the fluid delivery system and the reference meter are both located at the wellsite.
20. The apparatus of claim 19 , further comprising a trailer to support the fluid delivery system and the reference meter.
21. The apparatus of claim 19 , further comprising a skid to support the fluid delivery system and the reference meter.
22. The apparatus of claim 19 , further comprising a system meter.
23. The apparatus of claim 22 , wherein the system meter and the reference meter are installed in series.
24. The apparatus of claim 19 , further comprising at least one valve.
25. The apparatus of claim 24 , wherein the valve is a 3-way ball valve.
26. The apparatus of claim 19 , further comprising at least one dry disconnect.
27. The apparatus of claim 19 , further comprising at least one tank.
28. The apparatus of claim 19 , further comprising at least one pump.
29. The apparatus of claim 19 , wherein the property comprises flowrate.
30. The apparatus of claim 19 , wherein the property comprises density.
31. The apparatus of claim 19 , wherein the property comprises specific gravity.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/772,839 US20090007650A1 (en) | 2007-07-03 | 2007-07-03 | Method and Apparatus for Wellsite Verification of Properties of a Fluid |
PCT/GB2008/002205 WO2009004311A1 (en) | 2007-07-03 | 2008-06-26 | Method and apparatus for wellsite verification of properties of a fluid |
ARP080102863A AR067400A1 (en) | 2007-07-03 | 2008-07-02 | METHOD AND APPLIANCE FOR THE VERIFICATION OF THE PROPERTIES OF A FLUID IN THE WELL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/772,839 US20090007650A1 (en) | 2007-07-03 | 2007-07-03 | Method and Apparatus for Wellsite Verification of Properties of a Fluid |
Publications (1)
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US20090007650A1 true US20090007650A1 (en) | 2009-01-08 |
Family
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US11/772,839 Abandoned US20090007650A1 (en) | 2007-07-03 | 2007-07-03 | Method and Apparatus for Wellsite Verification of Properties of a Fluid |
Country Status (3)
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US (1) | US20090007650A1 (en) |
AR (1) | AR067400A1 (en) |
WO (1) | WO2009004311A1 (en) |
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US20110284220A1 (en) * | 2008-03-07 | 2011-11-24 | Robert Hayworth | On-the-fly acid blender with sampling equipment |
US20150075273A1 (en) * | 2013-09-13 | 2015-03-19 | Chevron U.S.A. Inc. | Alternative gauging system for production well testing and related methods |
US20150261601A1 (en) * | 2014-03-12 | 2015-09-17 | Cameron International Corporation | Network Synchronization for Master and Slave Devices |
WO2016068965A1 (en) * | 2014-10-31 | 2016-05-06 | Halliburton Energy Services, Inc. | Detecting and preventing two-phase flow to gaseous fueled engines |
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EP1899685B1 (en) * | 2005-06-29 | 2021-06-23 | Micro Motion Incorporated | Method and device for determining the density of one of the components of a multi-component fluid flow |
-
2007
- 2007-07-03 US US11/772,839 patent/US20090007650A1/en not_active Abandoned
-
2008
- 2008-06-26 WO PCT/GB2008/002205 patent/WO2009004311A1/en active Application Filing
- 2008-07-02 AR ARP080102863A patent/AR067400A1/en unknown
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AR067400A1 (en) | 2009-10-07 |
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