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PETE 394 Lab 1 C - PETE 394 Reservoir Mechanics Lab Lab...

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PETE 394 Reservoir Mechanics Lab Lab Experiment No. 1 Grain Size Analysis UL Department of Petroleum Engineering Date Preformed: January 23, 2006 Date Submitted: March 9, 2006 Submitted to Dr. Okoye ________________________ Carl J. Barbier
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Barbier, Carl J. Grain Size Analysis PETE 394 Lab Experiment No. 1 Performed: 1/23/06 Submitted: 3/9/06 Table Of Contents Page I Objective 3 II Synopsis 3 III Apparatus 3 IV Procedure 4 V Tabulated Summary of Results 4 VI Discussion of Results 5 VII References 6 VIII Appendix 6 2
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Barbier, Carl J. Grain Size Analysis PETE 394 Lab Experiment No. 1 Performed: 1/23/06 Submitted: 3/9/06 I. Objective To perform size analysis of an oilfield sand by screen test and determine grain size distribution by statistical analyses. II. Synopsis Sieve analysis is the process of “analyzing the size distribution of a sand or gravel sample. In sand-control applications, a sample of formation sand is shaken through a series of sieves of known size. The resulting distribution is then used to design an appropriate treatment (gravel pack) that will retain the (formation) sand, while causing a minimal restriction to production.” 1 Also, studying a reservoir requires knowledge of the rocks or sediments that a particular formation is composed of. Important information held within the rocks can yield whether the zone is a potential reservoir. The following are factors that determine whether a reservoir is economically producible. 1. “The depositional environment in which the reservoir rocks originated. 2. The changes that take place in a sediment as a result of increased temperatures and pressures, causing rock formation (diagenetic history). 3. The quality (production potential) of the reservoir rocks resulting from the depositional and diagenetic history. 4. The correlation lithologic characteristics to log properties. 5. The fluid sensitivities of the reservoir rocks to completion chemicals. 6. How to maximize production and minimize formation damage using the proper exploitation procedures.” 2 But for this preliminary sample evaluation, identifying the grain size properties of the reservoir rock is what was studied here. A sand sample of known weight and unknown particle size is passed through a set of sieves of known mesh sizes. The sieves are arranged in downward decreasing mesh diameters. The sieves are mechanically vibrated for a fixed period of time. The weight of sediment retained on each sieve is measured and converted into a percentage of the total sediment sample. This method essentially measures the maximum diameter of the sediment grains.
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