RADIOACTIVITY ANALYSES OF OIL WELL SAMPLES

Geophysics ◽  
1942 ◽  
Vol 7 (1) ◽  
pp. 90-94 ◽  
Author(s):  
Bruno Pontecorvo
Keyword(s):  
Laboratory Tests ◽  
Laboratory Method ◽  
Well Logs ◽  
Oil Well ◽  
Rock Samples

A laboratory method of analyzing the radioactivity of rock samples is described in which the laboratory tests are designed to simulate the conditions which prevail when radioactivity logs of wells are made. Thus the radioactivity of samples may be correlated with the results of such well logs and their interpretation improved thereby.

Laboratory and Field Tests on Titanium for Oil Field Pump and Valve Parts

CORROSION ◽  
1961 ◽  
Vol 17 (11) ◽  
pp. 16-30
Author(s):  
F. W. Jessen ◽  
Ricardo J. Molina
Keyword(s):  
Crude Oil ◽  
Laboratory Tests ◽  
Field Tests ◽  
Oil Wells ◽  
Oil Field ◽  
Lower Price ◽  
Oil Well ◽  
Competitive Disadvantage ◽  
Sour Crude ◽  
Gas Lift

Abstract Laboratory and field tests are reported for titanium parts for gas lift valves and down-hole oil well pumps. While titanium performed well in the laboratory tests using aerated fluids, and did well in field tests of gas lift wells, similar trials in wells pumping sour crude oil well showed titanium to be inferior to normally used materials. Authors conclude titanium is suitable for use in gas lift valves and could be competitive to presently used materials at a lower price. They conclude titanium is not suitable for use in oil well pumps, but might perform better if hardened. It also is at a competitive disadvantage to commonly used materials costwise. While titanium is cathodic to materials commonly used in oil wells, no marked corrosion was attributed to this property after exposure of coupon sets in a producing well. Titanium was found resistant to abrasion by sand-laden aerated oil well fluids in laboratory tests. 6.3.15, 8.4.3

scholarly journals Issues in Engineering Geological Classification of Weathered Sedimentary Rocks: Case Study of Kati Formation, Parit, Perak

2018 ◽  
Vol 7 (4.35) ◽  
pp. 131
Author(s):  
Wong Jia Mang ◽  
Abdul Ghani Md Rafek ◽  
Goh Thian Lai
Keyword(s):  
Laboratory Tests ◽  
Sedimentary Rocks ◽  
Point Load ◽  
Uneven Distribution ◽  
Index Test ◽  
Durability Test ◽  
Rock Samples ◽  
Slake Durability ◽  
Laboratory Test Results ◽  
Weathered Rocks

Kati Formation consists of alternating layers of sandstone, siltstone and mudstone that results in non-uniform weathering. The presence of surficial features due to weathering such as iron bands, iron recementation, iron staining and lithobionts coating in an uneven distribution on the outcrop causing more complexity to the heterogeneous sedimentary rocks which are also tectonically deformed. The presence of iron recementation in highly weathered rocks causing the rock strength to be higher than the moderately weathered rocks. Thus, several laboratory tests are conducted in this study to characterise the weathered rocks which are uniaxial compressive strength (UCS), point load strength index, slake durability test, jar slake test and Schmidt hammer rebound test. Among the laboratory tests conducted in this study, slake durability index test, Id2 is the ideal test to characterise the rock samples of different weathering grades as it gives a large range of laboratory test results which is 0.3 % to 15.0 % for completely weathered, 22.0 % to 67.0 % for highly weathered, 68.0 % to 83.0 % for moderately weathered and 87.0 to 98.0 % for slightly weathered to fresh rocks. The values obtained are not affected by the uneven distribution of iron oxide present in the rock samples.

Proposing a new model to approximate the elasticity modulus of granite rock samples based on laboratory tests results

2017 ◽  
Vol 78 (3) ◽  
pp. 1527-1536 ◽  
Author(s):  
Katayoun Behzadafshar ◽  
Mehdi Esfandi Sarafraz ◽  
Mahdi Hasanipanah ◽  
S. Farid F. Mojtahedi ◽  
M. M. Tahir
Keyword(s):  
Laboratory Tests ◽  
Elasticity Modulus ◽  
New Model ◽  
Rock Samples ◽  
Granite Rock

scholarly journals Computer Application to Estimate PVT Conditions in Oil Wells in the Ecuadorian Amazon

2021 ◽  
Vol 8 (5) ◽  
pp. 727-738
Author(s):  
Paulo Escandón-Panchana ◽  
Fernando Morante-Carballo ◽  
Gricelda Herrera-Franco ◽  
Edwin Pineda ◽  
Jonathan Yagual
Keyword(s):  
Physical Properties ◽  
Laboratory Tests ◽  
Oil And Gas ◽  
Initial Conditions ◽  
Oil Wells ◽  
Computer Application ◽  
Oil Well ◽  
Pvt Properties ◽  
Eastern Basin ◽  
Mathematical Correlation

A reservoir behaviour's characterisation is determined by analysing the fluids' physical properties, reported in Pressure, Volume and Temperature (PVT) tests. These tests are performed in the laboratory or are estimated by mathematical correlations with the well's basic properties. The eastern basin of Ecuador is considered a hydrocarbon zone, and the analysis of the physical properties of the fluid from oil wells is essential. The aim is to develop the PVTTESTSYSTEM software to estimate PVT conditions when there are no laboratory tests. The study methodology is based on (i) Compilation of 10 PVT laboratory tests of oil wells in the eastern basin of Ecuador; (ii) Analysis of mathematical correlations; (iii) Development of the PVTTESTSYSTEM software, with the wells' initial conditions' input, selecting the mathematical correlation and estimation of results, based on the relationship of the properties of oil and gas; iv) Comparison of data obtained by laboratory tests and PVTTESTSYSTEM software reports. The software used with a graphical interface presents a registration and login platform and five modules that allow: inserting company and field data, initial oil well data, selecting correlations, calculating PVT properties and generating a graphic report. The results show that the mathematical correlations that estimate PVT properties were systematised, which approximate the laboratory tests' real results. The approximation of the calculated results with the actual results establishes a high confidence level for the PVTTESTSYSTEM software.

Laboratory Method to Measure Sealing Capacity of Caprocks / Metodyka Wykonywania Pomiarów Laboratoryjnych do Określania Własności Uszczelniających Skał Nadległych

2012 ◽  
Vol 57 (2) ◽  
pp. 471-481
Author(s):  
Łukasz Klimkowski ◽  
Rafał Smulski
Keyword(s):  
Laboratory Tests ◽  
Oil And Gas ◽  
Laboratory Method ◽  
Threshold Pressure ◽  
Direct Examination ◽  
Detailed Characterization ◽  
Laboratory Methods ◽  
Sealing Capacity ◽  
Current Trends ◽  
Current Standards

Abstract Adoption of geological sequestration as one of the main options for reducing carbon emissions to the atmosphere resulted in the intensification of research on various aspects relating to such a solution. The choice of structures for the potential storages must be preceded by a detailed characterization process. In addition to the appropriate location, capacity and injectivity, the most important issue is the proper seal, preventing the migration of injected CO2 into overburden, and ultimately to the atmosphere. The process of granting licenses for the injection of CO2 will require to confirm the sealing capacity of caprock by means of laboratory tests. In response to current trends and requirements in the laboratory of the Faculty of Drilling, Oil and Gas of AGH UST in Krakow the apparatus for direct examination of the sealing efficiency of poorly permeable rocks, acting as seal rocks, was created according to current standards. This article discusses the mechanism of capillary seal and basic laboratory methods for determining the capillary threshold pressure for CO2. The authors present the results of preliminary tests on shale samples with different permeabilities.

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