ML20081B978
| ML20081B978 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee, 05000000 |
| Issue date: | 02/07/1972 |
| From: | Tarnuzzer E VERMONT YANKEE NUCLEAR POWER CORP. |
| To: | |
| Shared Package | |
| ML20081B916 | List: |
| References | |
| FOIA-83-296 YAEC-1055, NUDOCS 8310310061 | |
| Download: ML20081B978 (67) | |
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VERMONT Y/uNKEE INTEGRATED PRIMARY CONTAINMENT LEAKAGE RATE TEST Edmund C. Tarnuzzer February 7, 1972 , O
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l TABLE OF CONTDITS i INT RODU C TIDN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 I. SUW.ARY........................................................2 II. III. TEST CONSIDERATIONS A. Description of Containment................................. 3 B. Description of Instrumentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
- 1. Temperature Instrumentation............................. h
- 2. Pressure Instrumentat1cv................................ h 3 Torus Liquid Level Insw umentation...................... h
- h. Humidity Instrumenta tion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 C. De scription of Computer Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 D. Error Analysis......................................[....... 6 E. Description of Tests....................................... 8 IV. RESULTS AND VERIFICATION s A. hh psig Test.............................. ............:... 12 B. 2h psig Test............................................... 12 V. WNCLU S IDN S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1h VI. TABLES & FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 VII. A PPE NDII . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 C-30 Test Procedure 4 e t' e e S h
e e I. INTRODUCTION A series of two Type A integrated leakage rate tests were perfomed on the primary containment structure of the Vemont Yaakee Nuclear Power s Corporation boiling water reactor in November 1971. One test was perfomed at the calculated peak accident pressure of hh psig to verify' that the measured leakage rate (g) is less than the allowable leakage rate (Is) of 0.8 weight percent per 2h hours. The second test was perfomed at the retest pressure of 2h psig, which is defined as "not less than 50% of the calculated peak acciderit pressure". The purpose of this second test was to obtain a measured leakage rate (Lg) to be used in determining an extrapolation factor should a reduced-pressure test program be e ected for future testing. . This report describes and presents the results of these two Type A s leakage rate tests. l l' G m
a : II. SUW ARY An initial series of tests was perfomed during November 1968 on the A strength test at 70 psig completed primary containment structure shell. was followed by a leakage rate test at the design pressure of $6 psig. These tests were performed on the bare structure with all pen'etrations blanked off. The results of that initial leakage rate test at the design pressure of 56 psig was a leakage rate of -0.oh98 + .0225% per day at a 95% confidence level. This result fulfilled a contractual agreement between Chicago Bridge and Iron, the fabricator, and General Electric for a leakage rate of less than 0.2 percent per day at the d'esign pressure. , Following the initial bare containment leakage rate testy all the penetrations and their associated systems were installed. Upon completion
- of all systems penetrating the primary containment, up to and in.cluding external containment isolation valves, the containment was ready for the preoperational leakage rate tests. All isolation valves were individually tested for proper operation and leaktightness. Repairs and corrections were made where necessary.
At the start of the test, all valves were to be in their normal position for plant power operation. Exceptions to this valve lineup were noted during the test and are listed in Addendum No.1 to the C-30 procedure, which is included as Appendix A to this report. Upon completion of these Type A leakage rate tests, individual leak rates were measured on all valves
- listed in Addendum No.1, and the total leakage added to that measurement during the Type A tests. The measured leakage rates were -0.3251 010%
. per day at 2h psig and -0.h76 1 011% per day at hh psig. The isolation valve leakage was measured after the type A tests and added to give final . results of -0.3hh 1 010% per day for the 2h psig test and -0.h831 011%
per day for the hh psig test. e 3 e
- III. TEST CONSIDERATI0tS A. Description of Containment The containment structure is the typical drywell and torus arrangement
, that is utiliznd on contemporary BWR plants. The spherical section diameter of the drywell is 62 feet. The drywell overall height is 106 feet with a calculated free volume of 13h,000 cubic feet. The torus has a major diameter of 98 feet, a minor diameter of 27-2/3 feet, and a calculated free air volume of 108,250 cubic feet with the normal water level. Ihe wall plate thickness varies from about $/8 inches to 2-1/2 inches. The entire containment structure is designed for 56 psig at 281 F.
The drywell is connected to the torus by eight 6.75 foot diameter vent pipes. These vent pipes connect to a h'9" diameter vent header within the - torus. Ninety-six 2 foot diareter downcomer pipes project downward from the vent header and terminate four feet below the normal torus water level. Ten vacuum breakers are provided between the torus and drywell to prevent the formation of a vacuum within the drywell following system operation. B. Description of Instrumentation The containment system is equipped with instrumentation to permit leakage rate determination by the absolute method. In this method, the actual mass of dry air within the drywell-torus complex is calculated. The leakage rate is the time rate of change of this value. The r. ass of air is calculated according to the Perfect Gas Law as follows: PV
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Q _ gr where: P a= air partial pressure V = free volume i R = gas constant T = temperature The parameters required are , temperature, pressure, and humidity. The a . INSTRUMENTATION IDCATIDN t C3 A 82 o o
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a B location of the instrumentation is shown on Figure 1.
- 1. Tomoeratum Instrumentation
. The drywell is equipped with 13 precision platinum RTD's, each one housed within a thermal radiation shield. The torus is equipped with six of the same pmcision RTD's. The accuracy of these detectors.is within 0.1 F, and the repeatability is within 0.1% of their normal span. A four-wire system is used to connect the RTD to the bridge system to maintain the required accuracy. The bridge system provides a millivolt signal to the computer which maintains the required accuracy. ,
- 2. Pressure Instrumentation The drywell pmssum is sensed by a 120 inch large bore U[ tube servo-manome ter. One leg is connected to the drywell, and the other' leg is connected to a 0.2 micron vacuum system to provide an absolute pressure
. i signal. The accuracy of this instrument is 3 0.00$ inch of mercury with a resolution of f 0.0005 inch of mercury. The 0-ho MV signal to the computer is provided by a 5K ohm potentiometer with a linearity of 0.025 and supplied by a 0.02% regulated power supply network. A differential pressum sensor and transmitter measures any differential between the torus and drywell and provides a signal to the computer. This value is combined with the drywell pressure to arrive at the torus pressure. This instrument is a diaphragm type transmitter with an accuracy of f 0.h% and a repeatability of f 0.1% of its 120 inch span. During these leakage rate tests, all of the torus to drywell vacuum breakers were blocked open to insure pressure equalization between torus and drywell. 3 Torus I:iquid Level Instrumentation A differential pressure sensor and transmitter similar to the torus-drywell diffemntial pressure instrument is providad to sense the liquid
- level within the torus and provide a signal to the computer. It has an
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i B I e accuracy of + 0.h% and a repeatibility of + 0.1% of its 36 inch span. _ h. Humidity Instrumentation The drywell and torus are each provided with two dew point temperature measuring devices. They are of the lithium chloride cell type. The dew point temperature is sensed by a precision platinum RTD. The overall accuracy of these ' detectors is estimated to be within 2 of the dew point temperature. The output from the bridge circuit is fed directly to the computer. C. Description of Computer Program , All the parameters necessary to calculate ,the mass of air contained within the drywell and torus are fed to the computer, which perfonns all the necessary calculations. The sensors are all scanned at one-minute intervals, and the individual values are stored. Calculations are made at . A ten-minute intervals based upon the average of the previous 10 one minute readings. A weighted average temperature is calculated for both the drywell and the torus. The 13 drywell RTD's are weighted according to the fraction of , the total free drywell volume each RTD senses. The six torus RTD's are evenly spaced within the torus air volume so that a straight arithmetic average is used. The dewpoint temperature is the average of the two detectors in both the drywell and torus. By utilizing built-in steam tables and the dewpoint temperatures, the computer calculates the partial pressure due to water vapor in both the torus and drywell. The partial pressure is then subtracted from the total pressure as measured in the drywell, and drywell and AP for the torus total pressure, to arrive at the respective air partial pressures. For the drywell, the free volume and the gas constant are constants so that the mass of contained dry air is: 5
E B s i Q= (const)xh
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with appropriate consideration so the mass, Q, is in pounds. , Ir. the torus, the free volume is not necessarily constant, as it will vary depending upon the torus water level. The computer calculates the free volume utilizing the water level signal. Following this calculation, the computer calculates the mass of dry air within the torus. This mass is then combined with the drywell mass of dry air to arrive at the total mass of contained air. This computer program has many options which provide flexibility in handling the data and permits its use as a continuous monitoring system. Any or all of the data used by the computer can be printed on demand or automatically at' intervals of one minute or longer. The weight of air calculation can be made as frequently as once every 10 minutes or up to - s once a day for continuous leakage monitoring purposes with the plant operating. For purposes of this test, all the sensors were scanned once per minute and the temperature and pressure data printed for permanent records. The mass of air calculation was performed eirery 10 minutes and consisted of an average of the previous 10-minute scans. This result was then printed also. This averaging process tended to smooth out the random sensing and trans-mission errors which occur. An off-line program, STAREG, was used to calculate a least square fit of all the mass of air calculations. The leakage rate was calculated as a function of pounds mass leakage versus time in minutes. For a 2h-hour test period and six calculations being made per hour, there were lhh independent data points. Thus, precision not ordinarily available in a short-term test . l was employed. , D. Error Analysis Error analysis on test results involves two distinct areas. These are e . a naximum possible error. which is usually perfomed prior to a test to dater-
.' mine the precision necessary on the instrumentation to be used for the test, and probable error, which is applied to the results to assess the credence of the test after it is perfomed.
The maximum probable error is customarily determined by evaluating the results at a 95%~ confidence level. In addition, to insure that a bias has net been introduced into all the data, a verification test is performed. This is done by metering a known quantity of air into the containment and observing the change in the calcu2ated value. Agreement to within 25% of this value is deemed an acceptable result. . In applying the absolute method of leakage measurement as[ Yankee does, each calculation -represents an independent number. Each number, then, has . a maximum possible error associated with it while the leakage rate'is a . s least square fit of a series of these numbers. The maximum possible error on an individual point is detemined as follows. In simple terms, the mass of air calculated thus: P Q=K y where: Q = mass of air in pounds K = constant = free volume / gas constant Pt = total pressure Py = water partial pressure ,_ T = weighted average air tempe mture Py , the water vapor partial pressure, is calculated from the dew point temperature, which is accurate to
+ 1 F.
A 1 degree error in dew point temperature results in an error of 0.08" HG out of 120", or an error of 0.067% of the pressure reading. This error is not of significance. T, the weighted average tempemture, is the average of a series of values, each of which is accurate to 0
+03F. The error in the average will not exceed , }0.1 out of $300F or a maximum error of + 0.019%.
Using the method presented in ORNL-NSIC-26, Testing of Containment Systems Used with Light-Water Cooled Power Reactors, page 218, the maximum possible 1
a , error in ths valus of the mass of contained air may be express d: EQ = 2Ef,2_E) p Q 7 P/ E g, 0.2 . 0.010 Q 530 120 f = 0.00038 + 0.00008 = 0.000h6 This represents a maximum error of about 36 pounds mass out of approximately 80,000 pounds mass present during the kh psig test. Assuming this error wem applied to each calculated value of Q in such a manner to give the largest leakage rate (i.e., added to the initial values of Q and progressively decreasing until the final value of Q would have 36 pounds mass subtEacted), the total effect would be less than 'O.1% increase in the measured value of leakage rate. , . s E. Description of Tests ~ The containment was made ready for the integrated leakage rate tests, and pressurization commenced during the late afternoon of November 8,1971. Pressurization was accomplished by using two mobile, oil-free air compassors, one with 900 SCFM capacity, and the other with 1200 SCFM capacity. They were connected by hose to the air purge supply line outboard of the isolation valves as shown on Figure 2. A pressure of 5 psig was reached after approxi-mately one hour of pumping. At this point, numerous pipe and vent plugs were found missing. Attempts to insta11 them with the containment pressurized were largely unsuccessful. The containment pressure was reduced to atmospheric, and the plugs were installed. Pressurization was resumed early in the morning of November 9 at a rate of nearly 6 psig per hour. The retest pressure of 2h psig was reached at 6:00 AM on November 9 A survey was begun to locate and repair a number of leaking plugs, flanges, and packings on lines penetrating the containment. t Data gathering was also initiated, and leak rate detemination was begun.
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- O From the very beginnirg it was obvious that the leakage rate at the retest pmssure of 2h psig was high and would not result in an acceptable test.
The leakage rate was approxinately 20 pounds mass per hour, while an acceptable value at the peak accident pressure of hh psig was about 15 pounds nass per hour. Leakage location and repair continued throughout November 9 and 10 with only limited success in reducing the leakage rate. Late on November 10 it was felt that leak location might be easier at a higher pmssure and also that some larger valves which might be leaking would seat more tightly at increased pressum. Thus, the containment pressure was increased to the peak accident pressure of hh psig. Pressurization was continued at 2230 hours
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on November 10 w[th 1200 cfm rate. After an hour, the 900 cfm compressor was I I started to increase compression rate from h.$ psig per hour to 5.h psig per hour. The test pmssure of hh psig was reached at 0300 hours on November 11, and data gathering and leak rate determination commenced. i Leak location and repair also continued. Leakage was located in the isolation valve in the air charge line. These were the AC-8 and 10 valves and were believed to have been damaged during the isolation process at hh psig. Manual downstream valves were closed for the test, and the AC-8 and 10 valves were repaired and individually tested subsequent to the Type A tests. Air temperature control was maintained by control of the Reactor Building Component Cooling Water (RBCCW) to the coolers in the drywell. With a constant temperature and an acceptable leakage rate, time zero for the leakage rate test at peak accident pressure (hh psig) was determined to be 1600 hours on November 11.
,' The test was well underway on November 12 when, at 09h5 hours, a sudden
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a s drain valve had been opened by persons unknown, and approximately 3 ,000 , gallons of water had drained before the valve could be closed. Locks were then placed on a number of valves to prevent a reoccurrence of this type. Because the computer program takes the torus liquid level into account, no large change in air mass was noticed, even though a noticeable' dip in pressure had occurred (Figures 3 and h). The kh psig test was completed without further incident at 1600 hours on November 12. The leakage rate test was immediately verified by metering back to the containment a volume of the same magnitude as the leakage. This pumpback of 900 cubic, feet was complete at 1623' hours, and sufficient data had been gathered by 16h5 hours to detemine that the verification was successful, and bl own to the 2h psig level commenced. The 2h psig pressure was reached at 2200 hours, and data gathering and reduction was started. It was decided to wait four hours to permit equilibrium conditions to return prior to the start of the 2h psig test. Time O for the 2h psig test was 0200 hours on November 13 The test was run without incident, and the 2h-hour test period was completed at 0200 hours on November R. This test was verified by the metering back to the containment of 700 cubic feet of air. This charge was completed by 0215 hours. The data indicated good agreement, and the testing was declared complete at 02h5 hours, and depres-surization was initiated. It was known prior to the test that certain isolation valves were leaking and othsr isolation valves were found to be leaking after the l containment was pressurized. Manual valves downstream of these automatic l l , isolation valves were intentionally closed to contain leakage. In' addition, one manual valve in the A feedwater line was inadvertantly shut prior to the
.' start of the test. To obtain the true containment leakage rate, these valves were repaired where necessary and individually leakage tested. This leakage,
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which was tabulated in' Addendum 1 of the C-30 procedure (Appendix A), was added to the leakage previously measured during the Type A tests to arrive
- at the total integrated leakage rate.
The valves blanked prior to the test because of leakage were: Nitrogen makeup inlet isolation valve AC-SE-20 AC-SE-22A Torus nitrogen makeup isolation valve AC-SE-22B- Drywell nitrogen makeup isolation valve FD-82) Floor drain discharge isolation valves pp_g3) AC-SB-6 ) ' AC-SB-7 ) AC-SB-6A) Torus and drywell purge and vent lines to standby AC-SB-7A ) . gas treatment and bypass valves AC-SB-6B) AC-SB-7B) . s, SS-39) Reactor recirculation loop sample line isolation valves SS-h0) The valves isolated after the start of the test because of suspebt<ed leakage
- were:
AC-SB-8 Drywell purge inlet isolation valve AC-SB-10 Torus purge inlet isolation valve RCIC-SSC-9 RCIC turbine exhaust valve RCIC-SSC-10 RCIC vacuum pump discharge valve HPIC-SSC-12 HPIC turbine exhaus.t valve HPIC-SSC-13 HPIC turbine exhaust drain valve The valve found shut that should have been open during the test was: FW-29 Feedwater line A isolation valve s l
~
l l IV. RESULTS AND VERIFICATION
. A. hh psig Test The computer scanned the instrumentation once per minute and performed a calculation for Q, the mass of contained air, once every 10 ninutes. This data, once every 10 minutes, was used to calculate a leakage rate at a 95 percent confidence level. For a 2h-hour test, there shall be 1M independent pieces of data. The results of a least square fit of all data predict a leakage rate of -351.1h 1 8 15 pounds mass leakage per day. The initial contained mass of air was 73,733 pounds, therefore the above leakage is equi-valent to 0.h76 1 011 percent per day.
The verificaIIion consisted of metering back to the containment 900 cubic feet of air at a base pressure of $h psig and base temperature of 6b F. This volume is equivalent to 321 pounds mass of air. The calculated ma'ss of con-tained air prior to the charge was 73,366 pounds, and the value after the charge was 73,717 pounds for a net difference of 351 pounds, or an accuracy of better than 10 percent. . The overall leakage rate result of the M psig test consists of the above result plus additional leakage from the previously listed isolation valves. The total measured leakage from these valves was -h.9921 26h pounds mass per day at M psig. Adding this leakage to the previously measured leak-age results in a final leakage of -0.h8310.011 percent per day for the
& psig test at a 95 percent confidence level.
B. 2h psig Test The data was handled in the same manner for the 2h psig test. The re-sult of the least square fit of the data was a leakage rate of -160 9h 15 2h pounds mass per day. The initial contained mass of air was h9,556 pounds, and the above leakage was equivalent to -0 3251010 percent per day. l .
~
i .- The verification consisted of a metered pumpback of 700 cubic feet at a base pressure of 35 psig and base temperature of 60 F, which is equivalent j to 180 pounds mass. The calculated mass of contained air prior to the charge was h9,381 pounds, and the value after the charge was h9,569 for a net dif-ference of 188 pounds, or an accuracy of better than 5 percent. The overall leakage rate result of the 2h psig consists of the above plus additional measured leakage from the previously listed isolation valves. The total measured leakage from these valves was -h.3hh + .168 pounds per day. The overall leakage rate for the 2h psig test was -0 33h + .010 percent per day. e O 1 I e b (
4 e l
a . , ~ V. CONCLUSIONS
. a l ' ' . . :. . o 9
. Both the kh psig and the 21 psig leakage rate tests pInvided acceptable j p .-e m , ; e . result s. The technical specification requirements that the leakage at the peak faturi :e ! .- accident pressure (Lp) not exceed 0.8 percent per 2h hours was met with a We: .- measured leakage. rate of 0.h83 percent per 2h hours. The measured result of 0 33h percent per 2h hours at the retest pressure permits the next test to be performed at either 2h psig or hh psig. The applicable portion of the specification is as follows: Section h.7 A.2. (b) Acceptable Criteria for Type A Tests (1) The mnvimum allowable leak rate (Lp ) shall not exceed 0.80. weight percent of the contained air per 2h hours at the pe'ak accident pressure of hh psig (P p ), which is the design basi.s accident leakage rate, L a ~ (2) The allowable test leak rate (Lt ) shall be the lesseb.of: Lg =L a and Lt " La 1/2 . Ltm
. . . P.
where: I =_ m measured leakage rates Pt = retest pressure, 2h psig Pp = peak accident pressure, hh psig . (3) The allowable operational leak rate (Lto), which shall be met prior to resumption of power operation following a test (either as measured or following repairs), shall not exceed 0 75 Lt* The two leak rate tests results reported here permit the calculation of items (2) and (3) above. The tests have provided the following results: L tm = 0 33h5/ day Lpn = 0.h83%/ day For item (2), L is the lesser of: Lg = L, Ltm = 0.8 33h = 0.55 and Lpm . .
. Lg =L a Pt = 0.8 2h 1/2 = 0.59 p
E ' l _P_ - -
. 4 From the above, Lg is now estimated to be 0 55
-lh- l i
t e If a reduced pressure test program is utilized for future testing, the allowable test leakage (Ltm) must not exceed 0.75 Lt , which is 0.h1 weight percent per 2h hours. If a peak pressure test program is utilized for future testing, the allowable test leakage (Lpm) must not exceed 0.75 La ' which is 0.60 weight percent per 2h hours.
'A
, t e f S l l
e l e ' VI. TABIES & FIGURES I s l 9 W
*h e
e O b ( e
-16.
l l T
Table 1
SUMMARY
OF hh PSIG TEST DATA
~
Time Q Pressure T Time Q Pressure T (minutes) (pcunds ) "HG F (minutes ) (pounds) "HG F o 73711 118.79 80 9 500 73613 n8.h6 79.h 10 73698 n8.67 80 3 510 73617 20 73693 118.6h 79.8 52 0 73617 118.h3 79.h 30 73685 n8.6h 79.7 530 73607 - ho 73695 n8.6h 79.6 Sho 73609 n8.h3 79 3 50 73692 n8.61 79.5 550 73601 60 73693 n8.61 79.5 560 73600 188.ho 79.h 70 73696 n8.61 79.h 570 73588 j 80 -- n8.6h 79.h 580 73598 118.37 79 3 90 73695 n8.61 79 3 590 73597 100 73693 118.61 79 3 600 73588 n8.37 79.h llo 73702 n8.61 79 3 610 73585 - 12 0 73689 n8.58 79 3 620 73586 n8.33 79 3 ; 13 0 73690 n8.58 79 3 630 7357h ' 1ho 73698 n8.58 79 3 6ho 73576 n8.37 79 3 150 73689 n8.58 79.2 650 73575: 160 736914 118.58 79.2 660 73566' n8 33 79 3 170 73697 n8 58 79.2 670 73569 180 73681 n8.52 79.2 68o 73572 n8 33 79.3 190 7367h 118 52 79.2 690 73571 ,
~
200 73685 n 8 52 79.1 700 73572
- n8.30 79.1 210 73671 n8.h9 79.2 710 73570
. 220 73665 n8.52 79.2 720 73556 n830 79.2 230 7368h n8.52 79.1 730 73550 2ho 73681 n8.h9 79.0 7ho 73551 n8 30 79 2 250 73673 n8.h9 79.0 750 7356h 260 73672 n8.h9 79.0 760 7356h n8.27 79.1 270 73661 n8.h6 79 0 770 73551 280 73677 n8.h6 79.0 780 7355h n8.27 79.1 290 73668 n8.h6 79.o 790 735h5 300 63668 n8.h6 79.0 800 735h1 n8.2h 79.1 310 73670 118.h9 79.o 81o 73526 320 73667 118.h9 79.1 820 735h2 n8.2h 79.1 330 7366h n8. 52 79.2 83 0 73528 3ho 73666 n8.h9 79.3 8ho 73528 n8.21 79 1 350 73653 n8. 52 79.h 850 73515 360 73662 n8.52 79.h. 860 73519 n8.21 79 1 370 73660 n8.52 79.h 870 73515 380 73658 n8.55 79.h 880 73512 n8.21 79.1 390 7365h n8.52 79.h 890 73509 hoo 7365h n8.52 79.5 900 73513 n 8.21 79.o h10 736h7 n8.h9 79.5 910 73517 h20 --
n8.h9 79.5 920 73500
, h30 --
930 73h98 118.18 79.1 hho 73633 118.h9 79.5 9ho 73h68 h50 73633 950 73h96 n8.15 79.0 h60 73627 n8.h6 79.5 960 73h90 h70 73622 970 73h86 n8.15 79.0 h80 73627 n8.h6 79.h 980 73h85 h90 73621 990 73h79 n8.12 79.o
~
I
Table 1 (cont'd)
SUMMARY
OF hh PSIG TEST DATA Time Q Pressure T
, (minutes) (pounds) HG F 1000 73h99 1010 73h97 117.9h 78.9 1020 73h99 -
1030 73h98 117.73 78.9 10ho 73h9h 1050 73h92 117.h6 78.9 1060 73hB3 1070 73 512 117.19 78.8 1080 73505 117.07 78.8 1090 73h92 116.9h 78.9 1100 73h93 116.82 78.9 - 1110 73h90 116.70 78.8 1120 73h55 116.67 78.8 ' 1130 73h38 116.67 78.8 11ho 73hho 116.70 78.8 1150 73hho 116.70 78.8 1160 73h31 116.70 78.9 1170 73h29 116.67 78.9 1180 73h2h 116.67 78.9 1190 73h29 116.67 78.8 1200 73h3h 116.67 78.8 .'. 1210 73h31 116.67 78.8
- 1220 73hho 116.67 78.7 1230 73h33 116.6h 78.7 12ho 73h23 116.67 78.8 1250 73h28 116.6h 78.8
- 78.8 1260 73h08 116.6h -
1270 73h21 116.6h 78.8 1280 73h10 116.61 78.8 1290 -- 116.6h 78.8 1300 -- 116.6h 78.8 1310 73393 116.61 78.8 1320 73h00 116.6h 78.8 1330 73hoh 116.6h 78.8 13ho 73h05 116.61 78.8 1350 73383 116.61 78.8 1360 7338h 116.61 78.8 1370 73380 116.61 78.8 1380 73398 116.61 78.7 1390 73375 116.58 78.8 1h00 73381 116.61 78.8 1h10 '73387 116.61 78.7 1h20 73391 116.58 78.7
. 1h30 73363 116 58 78.8 1hho 73377 116 58 78.7 i
- Table 2 SU12ARY OF 2h PSIG TEST IRTA Time Q Pressure T Time Q Pressure T (minutes ) (pounds) "HG F (minutes ) (pounds) "HG F O h9536 78. 73 77.5 500 h9510 78. 73 77.5 lo h9538 510 h9506 78. 73 77.6 20 h95h2 78.76 77.5 52 0 h9506 78.76 77.6 30 h95hh 53 0 h95oh 78.73 77.5 ho h95h1 Sho h9508 78.73 77.5 50 h95h5 78.76 77.5 550 h9502 78.73 77.5 60 h95hh 560 h9502 78. 73 77 5 70 h95h1 570 --
78.73 77.6 80 h9539 78.76 77.5 580 --
- 78. 73 77.6 90 h95h1 590 h9h96 7 8. 73 77.6 100 h95ho 78.76 77.5 600 h9h97 ' 78.76 77.6 110 h9536 610 h9h88 78.73 77.6 120 h9539 620 h9h90 78. 73 77.6 13 0 h9538. 78.76 77.5 63 0 h9h82 78.70 77.5 1ho h9539 6ho h9h76 78.70 77.6 150 h9535 78.76 77.5 650 h9h73 78.73 77.6 160 h9533 660 h9h71~ 78.70 77.6 170 h9538 670 h9h75 78.70 77.5 180 h9531 78.76 77.5 680 h9h72 78.70 77.6
. 190 h9535 690 h9h76 78.70 77.6 200 h9531 78.76 77.5 700 h9h67 78.70 77 5 210 h9528 710 h9h73 '78.70 77.6 220 h9533 720 h9h62 78.70 77 5 230 h9533 78.76 77.5 730 L9h57 78.70 77.7 2ho h9520 7ho h9h63 78.70 77.7 250 h9515 78.76 77.6 750 h9h62 78.70 77.6 260 h9526 760 h9h6h 78.70 77.6 270 h9527 770 h9h67 78.70 77.6 280 h9526 78.76 77.5 780 h9h62 78.70 77.6 290 h9527 790 h9h62 78.70 77.6 300 h9527 78.76 77.6 800 h9h59 78.70 77 7 310 h952h 810 h9h69 78.70 77.6 320 h952h 20 h9h65 78.70 77.6 330 h9515 78.76 77.5 83 0 h9h61 78.70 77.7 3ho h9516 8ho h9h57 78.70 77.7 l
350 h951h 78.76 77.6 850 h9h62 78.70 77 7 360 h9522 860 h9h62 78.70 77.6 l 370 h9519 870 h9h59 78.70 77.6 78.70 77.6 380 h9523 78.76 77.6 880 h9h60 390 h9521 78.76 77.6 890 h9h59 78.70 77.6 I hoo h9519 78.76 77.6 900 h9h62 78.70 77.6 l hio h5518 78.76 77.6 910 h9h56 78.70 77.6 h20 h952h 78.76 77 5 920 h9h58 78.67 77.6
. h30 h952h 78.76 77 5 93 0 h9h50 78.67 77.6 hho h9520 78.76 77.5 9ho h9h50 78.70 77.6 h50 h9518 78.76 77 5 950 h9hh9 78.67 77.6 h60 h9517 78.76 77.6 960 h9hh8 78.70 77.6 h70 h9513 78.73 77 5 970 h9hh9 78.70 77.6 h80 h9519 78.73 77.5 980 h9h52 78.70 77.6 h90 h9515 78.76 77 5 990 h9hh5 78.70 77.6
Table 2 (cont'd)
SUMMARY
OF 2h PSIG TEST DATA l Pressure Time Q T , (minutes) (pounds) "HG F 1000 h9h52 78.70 77.6 1010 h9h53 78.70 77.6 1020 h9h53 78.67 77.6 - 1030 h9h51 78.67 77.6 10h0 h9h56 78.70 77.6 1050 h9h55 78.67 77.6 1060 h9h55 78. 70 77.6 1070 h9h53 78.70 77.6 1080 h9h55 78.70 77.6 1090 h9h51 78.70 77.6 1100 h9hh9 78.70 77 7 - 1110 h9hh8 78.67 77 7 1120 h9hh8- 78.70 77.7 ' 1130 h9h55 78.70 77.6 11ho h9hhh 78.70 77.6 ' 1150 h9h3h 78.67 77.6 1160 h9h38 78.67 77.6 1170 h9h37 78.67 77.5 1180 h9h23 78.6h 77.5 1190 1200 h9h19 h9h22 78.70 78.6h 77.6 77.6 '. 1210 h9h17 78.6h 77.6 - 1220 h9h17 78.61 77.5 1230 h9h0h 78.61 77.5 12ho h9h09 78.61 77 5 1250 h9h10 78.61 77.5 1260 h9h05 78.61 77.5 1270 h9h12 78.61 77.5 - 1280 h9h00 78.61 77.5 1290 h9397 78.61 77.6 1300 h9h02 78.61 77.5 1310 h9h03 78.61 77.5 1320 h9h00 78 58 77.5 1330 h9hoh 78.61 77.5 13ho h9h00 78.61 77.5 1350 h9h00 78.6h 77.5 1360 h9h02 78.61 77.5 1370 h9395 78.58 77.h 1380 h9397 78.58 77.5 1390 h9391 78.58 77.5 1h00 h9390 78.58 77.h 1h10 h9387 78.58 77.h 1h20 h938h 78.58 77.h ~ 1h30 h9382 78.61 77.5 1hho h9381 78.58 77.5 e
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