Tag: oil

what are Emulsions

Removing water from crude oil often requires additional processing beyond gravitational separation. In selecting a treating system, several factors should be considered to determine the most desirable methods of treating the crude oil to contract requirements. Some of these factors are: Tightness of the emulsion. Specific gravity of the oil and produced water. Corrosiveness of […]

Drilling Bits

when talking about oil well drilling, it is important to know How well the drilling bit drills depends on several factors, such as the condition of the drilling bit, the weight applied to it, and the rate at which it is rotated. Also important for a drilling bit performance is the effectiveness of the drilling […]

Crude Oil Price

First of all we have to understand the Classification of Petroleum Products The petroleum products that may be subject to evaluation can be grouped as: crude oil - natural gas - associated products Crude oil is a liquid composite of many hydrocarbon compounds that, depending on the composition, has differing properties such as oil gravity, […]

Drilling Fluids

Drilling Fluid Definitions and General Functions Results of research has shown that penetration rate and its response to weight on bit and rotary speed is highly dependent on the hydraulic horsepower reaching the formation at the bit. Because the drilling fluid flow rate sets the system pressure losses and these pressure losses set the hydraulic […]

Life of an Oil or Gas Field

by Abass Radhi Abbas The Exploration and Production Lifecycle There are five stages in the exploration and production ‘lifecycle’. These stages step through how hydrocarbons are discovered to what happens after an oil or gas field is decommissioned. Each stage is described below in terms of the activities, jobs, cost and time involved. There are […]

Effective and Relative Permeability

Mustafa AbdulSattar When there is only one type of fluid flowing through porous media, the permeability for this case is called “absolute permeability.” However, when there is more than one type of fluids present in a rock, a permeability of each fluid to flow is decreased because another fluid will be moving in […]

HSE in Drilling

An effective HSE program is characterized by no injury to people, no loss of property, and no harm to the environment. Great HSE performance is anindication of great leadership. It is much more than statistics, although measurements are necessary to facilitate performance improvement. HSE must be considered a core responsibility for all business participants, operators, […]

What is Crude Oil

Petroleum, meaning literally “rock oil,” is the term used to describe a myriad of hydrocarbon-rich fluids that have accumulated in subterranean reservoirs. (also called crude oil) varies dramatically in color, odor, and flow properties that reflect the diversity of its origin. Petroleum products are any petroleum-based products that can be obtained by refining and comprise […]

Classification of Petroleum Reservoirs

Petroleum reservoirs exist in many different sizes and shapes of geologic structures. It is usually convenient to classify the reservoirs according to the conditions of their formation as follows: 1. Dome-Shaped and Anticline Reservoirs: These reservoirs are formed by the folding of the rock layers as shown in Figure 1. The dome is circular in […]