Viscosimeter calibration system and method of operating the same
First Claim
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1. An in-line viscosimeter testing system for use in flow systems, comprising:
- a main flow line adapted to receive flowing material;
a flow diversion line loop operably connected to said main flow line for transfer of flowing material from said main flow line to said flow diversion line loop and for return of said flowing material from said flow diversion line loop to said main flow line;
a viscosimeter mounted in said flow diversion line loop and operably configured for conducting viscosity measurements on materials flowing through said flow diversion line;
means for selectively diverting said flowing material from said main flow line into said flow diversion line to permit said viscosimeter to perform viscosity measurements on said flowing material;
means for selectively preventing diversion of flow from said main flow line into said flow diversion line to isolate said main flow line from said flow diversion line;
a purge line occupying a portion of said flow diversion line and providing means for purging said flow diversion line of said flowing material when said selectively preventing means is isolating said main flow line from said flow diversion line;
a test line loop including a reservoir containing a standard viscosity fluid, said test line loop being operably connected to said flow diversion line for supplying said standard viscosity liquid to said flow diversion line and said viscosimeter when said selectively preventing means is isolating said main flow line from said flow diversion line;
means for selectively flowing said standard viscosity fluid through said test line loop between said reservoir and said viscosimeter to permit said viscosimeter to perform viscosity measurements on said standard viscosity fluid when said flow diversion line is isolated from said main flow line; and
means for comparing said viscosity measurements performed on said standard viscosity fluid against standard correlation values for said standard viscosity fluid.
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Abstract
A viscosimeter testing and calibration system (200) includes a main flow line (202), a flow diversion loop (204), a test loop (206), and a purge line (208). The flow diversion loop (204) contains a Coriolis effect viscosimeter (10). The test loop includes a tank (246) that is filled with a standard viscosity liquid (245). A process control unit (210) directs a method of system operation, which can calibrate the viscosimeter (10) without necessitating removal of the viscosimeter (10) from the system (200).
23 Citations
21 Claims
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1. An in-line viscosimeter testing system for use in flow systems, comprising:
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a main flow line adapted to receive flowing material; a flow diversion line loop operably connected to said main flow line for transfer of flowing material from said main flow line to said flow diversion line loop and for return of said flowing material from said flow diversion line loop to said main flow line; a viscosimeter mounted in said flow diversion line loop and operably configured for conducting viscosity measurements on materials flowing through said flow diversion line; means for selectively diverting said flowing material from said main flow line into said flow diversion line to permit said viscosimeter to perform viscosity measurements on said flowing material; means for selectively preventing diversion of flow from said main flow line into said flow diversion line to isolate said main flow line from said flow diversion line; a purge line occupying a portion of said flow diversion line and providing means for purging said flow diversion line of said flowing material when said selectively preventing means is isolating said main flow line from said flow diversion line; a test line loop including a reservoir containing a standard viscosity fluid, said test line loop being operably connected to said flow diversion line for supplying said standard viscosity liquid to said flow diversion line and said viscosimeter when said selectively preventing means is isolating said main flow line from said flow diversion line; means for selectively flowing said standard viscosity fluid through said test line loop between said reservoir and said viscosimeter to permit said viscosimeter to perform viscosity measurements on said standard viscosity fluid when said flow diversion line is isolated from said main flow line; and means for comparing said viscosity measurements performed on said standard viscosity fluid against standard correlation values for said standard viscosity fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An in-line viscosimeter test procedure, comprising the steps of:
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providing a series of nested tubing loops including a main flow line, a flow diversion line loop including a measurement device connected to said main flow line, a test line loop including a standard liquid reservoir connected to said flow diversion line loop, and a purge line connected to said flow diversion line loop; flowing material through said main flow line; diverting a portion of said material from said main flow line to said flow diversion line loop; determining a material parameter value from said material in said flow diversion line loop through use of said measurement device; isolating said flow diversion line loop to cease flow of said material through said flow diversion line loop;
thereafterpurging said flow diversion line loop of said material; moving standard liquid from said standard liquid reservoir through said measurement device to determine a test parameter value; and calculating a difference between said test parameter value and a standard correlation value for said standard liquid at environmental conditions. - View Dependent Claims (18, 19, 20, 21)
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Specification