WELL LOGGING TECHNIQUES

What Is Well Logging?

Well logging is the process of recording various physical, chemical, electrical, or other properties of the rock/fluid mixtures penetrated by drilling a well into the earth's mantle. A log is a record of a voyage, similar to a ship's log. In this case, the ship is a measuring instrument of some kind, and the trip is taken into and out  of the wellbore... Read More

FALLING OF OIL PRICE

WORLD oil prices have fallen sharply over the past seven months, leading to significant revenue shortfalls in many energy-exporting nations. On the other hand, consumers in many oil importing countries, including Tanzania, are likely to have to pay less for the oil products they use as a matter of course..... Read More.

Uganda-Tanzania Oil Pipeline a Done Deal

PRESIDENT John Magufuli’s office categorically asserted yesterday that the agreement entered between Tanzania and Uganda for the construction of a crude oil pipeline linking the two neighbouring countries is conclusive despite ongoing jostling by Kenya for the project.

According to the acting State House director of communications, Gerson Msigwa, what appear to be increasingly desperate maneuvers by high-level officials in Kenya to try to snatch the major infrastructure project from Tanzania will eventually prove futile because the deal struck by Magufuli with his Ugandan

counterpart Yoweri Museveni in Arusha recently was literally iron-clad. Read More...

PETROLEUM EXPLORATION AND PRODUCTION (UP STREAM SECTOR)

Geological exploration methods 

The methods and procedures followed in geologic surveying depend upon whether the survey is reconnaissance or detailed (geological, topography and structure mapping).

Reconnaissance surveying: is for the purpose of determining the oil prospects of a relatively large area in a limited space and time. A preliminary survey, usually executed rapidly and at relatively low cost, prior to mapping in detail and with greater accuracy.

Detailed geological survey: Based on these available maps, the geologist must make his own map contains all the geologic and economic data that were obtained. In the search for stratigraphic traps, the geologist must identify the environment of deposition, possible reservoir rocks, but of possible source and seal rocks as well. He also determines the source of clastic sediment and the direction of transport.  The field party should also collect stratigraphic data, as well as the geologic and structural maps..... Read More.

PETROLEUM PRUDUCTION

Production Stage

The production stage is the most important stage of a well's life, when the oil and gas are produced. By this time, the oil rigs and work over rigs used to drill and complete the well have moved off the wellbore, and the top is usually outfitted with a collection of valves called a Christmas tree or Production trees.

These valves regulate pressures, control flows, and allow access to the wellbore in case further completion work is needed. From the outlet valve of the production tree, the flow can be connected to a distribution network of pipelines and tanks to supply the product to refineries, natural gas compressor stations, or oil export terminals. 

As long as the pressure in the reservoir remains high enough, the production tree is all that is required to produce the well. If the pressure depletes and it is considered economically viable, an artificial lift method mentioned in the completions section can be employed.... Read More.

Petroleum Technology Overview

History of Petroleum.

Engineering Technology tells a story of the evolution of technological innovation in obtaining energy from oil and natural gas resources by the people who made it all happen. 

The site includes Oral Histories from some of petroleum engineering’s most notable engineers and scientists, a Timeline of Technological Milestones and Innovation, and links to game-changing Technical Papers.  More

PROCESING NATURAL GAS

Natural gas, as it is used by consumers, is much different from the natural gas that is brought from underground up to the wellhead. Although the processing of natural gas is in many respects less complicated than the processing and refining of crude oil, it is equally as necessary before its use by end users.

The natural gas used by consumers is composed almost entirely of methane. However, natural gas found at the wellhead, although still composed primarily of methane, is by no means as pure. Raw natural gas comes from three types of wells: oil wells, gas wells, and condensate wells. Natural gas that comes from oil wells is typically termed ‘associated gas’. This gas can exist separate from oil in the formation (free gas), or dissolved in the crude oil (dissolved gas)...More