Molecular Weight Correlation for Crude Oil in the Fields
The current method used in the laboratory to test the crude oil samples for average molecular weight value is the freezing point depression method, which is implemented in an automated cryometer ¹.
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PSOrigin of the Mid-Cretaceous Heavy Oils from the Safaniya Sandstone Reservoir, (Wasia Formation), Saudi Arabia* Ranya Algeer. 1, Haiping Huang. 1, and Steve R. Larter. 1. Search and Discovery Article #51277 (2016)** Posted August 15, 2016 *Adapted from poster presentation at GEO-2016, 12th Middle East Geosciences Conference & Exhibition, Manama, Bahrain, March 7-10, 2016
Molecular Weight Correlation for Crude Oil in the Fields
Molecular weight determination of crude oil samples is an important factor in the process of oil production in any oil field. This paper shows an experimental study to develop a correlation that numerically predicts the molecular weight of any crude oil sample with a known density.
1. Introduction. Oil and gas well drilling require different drilling fluids to perform various functions: to maintain the rheology of fluids , , , , , , manage the hydrostatic pressure in the wellbore, lubricate the drilling bit, prevent the invasion of fluid loss into formations, transport rock cuttings to the surface, and prevent the swelling of shale formations , , , , , .
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The typical oil concentration in produced water generated during oil and gas operation is between 100 and 1000 mg L À1 and even may go higher depending on the oil well, which cannot be discharged
An Experimental Study on Hydrodynamic Retention of Low
Polymers are often added with water as a viscosifier to improve oil recovery from hydrocarbon reservoirs. Polymer might be lost wholly or partially from the injected polymer solution by adsorption on the grain surfaces, mechanical entrapment in pores, and hydrodynamic retention in stagnant zones. Therefore, having a clear picture of polymer losses (and retention) is very important for
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- What is an antifreeze agent?
- An antifreeze is defined as an additive that, when added to a water-based fluid, will reduce the freezing point of the mixture. Antifreeze agents are used in mechanical equipment in environments below the freezing point to prevent the freezing of heat transfer fluids.
- What is a good antifreezing agent?
- For example, a formulation of 100 kg EG with 400 g KH 2 PO 4, 475 g Na 2 HPO 4, and 4 l of water is used as an antifreezing agent, which can be diluted accordingly with water, approximately 50:50. This formulation will be highly anticorrosive. Also, borax can be used to protect metal surfaces from corrosion.
- How many types of antifreeze chemicals are there?
- Inspection of Table 14.1 shows that there are two different types of antifreeze chemicals, that is, liquids that are miscible over the full range of concentration with water and salts, often salts which are soluble only to a certain amount. In the case of liquids, a mixture of 50% with water is given.
- Which antifreeze agent is most corrosive?
- Brines Of the commonly used antifreeze agents, brines are the most corrosive to metals of the engines and exhibit scale deposition characteristics that are highly restrictive to heat transfer. Today brines (sea water) still find applications in offshore uses because they are cheap.
