1,082 articles
Polymer flooding
Polymer flooding is an enhanced oil recovery method that thickens injection water with polymers like HPAM, improving sweep efficiency; China's Daqing oilfield is its largest application.
Port Arthur Refinery (Valero)
The Port Arthur Refinery is a Valero-owned petroleum refinery in Port Arthur, Texas, processing 435,000 barrels of crude daily into gasoline, diesel, and jet fuel.
Porvoo refinery
The Porvoo refinery is an oil refinery in Kilpilahti, Porvoo, Finland, owned by Neste and Finland's only crude oil refinery since the Naantali refinery closed in 2021.
Possible reserves
Possible reserves are the most uncertain category of petroleum reserves, less likely to be recoverable than probable reserves, with at least a 10% recovery probability.
Potential test (petroleum)
A potential test is a well testing procedure in petroleum engineering that estimates the theoretical absolute open flow (AOF) rate at zero sandface backpressure, used for reservoir assessment and production allocation.
Potochnoye Oil Field
Potochnoye Oil Field (Поточное месторождение) is a large oil field in the Khanty-Mansi Autonomous Okrug, Western Siberia, discovered in 1974 and operated by LUKOIL-Western Siberia.
Povkhovskoye Oil Field
The Povkhovskoye Oil Field (Повховское) is a large, mature onshore oil field near Kogalym in Western Siberia, Russia, discovered in 1972 and operated by LUKOIL subsidiary TPP Povkhneftegaz.
Poza Rica Oil and Gas Field
The Poza Rica oil and gas field is a giant petroleum field in Veracruz, Mexico, discovered by Shell in 1930 and Mexico's main oil source for three decades.
Pravdinskoye Oil Field
Pravdinskoye Oil Field (Правдинское месторождение) is a large oil field in the Khanty-Mansi Autonomous Area of Western Siberia, Russia, discovered in 1964 and producing since 1968.
Pressure transient analysis
Pressure transient analysis (PTA) is a well testing method that interprets pressure changes measured in a well over time to estimate permeability, skin factor, and reservoir pressure.
Primrose (oil sands project)
Primrose is a thermal in situ oil sands project in the Cold Lake area of northeast Alberta, owned and operated by Canadian Natural Resources Limited since 1984.
Prirazlomnoye Oil Field
Prirazlomnoye is an offshore oil field on the Pechora Sea shelf in the Russian Arctic, discovered in 1989 and producing since December 2013 from the ice-resistant platform Prirazlomnaya.
Production logging
Production logging is the set of downhole measurements, run in a producing or injecting well with the well flowing, that shows which zones contribute flow, where water or gas enters, and where leaks or channels exist.
Proved reserves
Proved reserves are oil and gas quantities demonstrated with reasonable certainty to be commercially recoverable from known reservoirs, the most conservative tier of petroleum reserve classification.
Prudhoe Bay Oil Field
Prudhoe Bay Oil Field is a giant oil field on Alaska's Arctic coast, discovered in 1968 by ARCO and Humble Oil; it is the largest oil field in North America.
Puerto La Cruz refinery
The Puerto La Cruz refinery (Refinería de Puerto La Cruz) is a Venezuelan crude oil refinery in Anzoátegui state, eastern Venezuela, built by Gulf Refining and operated by PDVSA since nationalization in 1976.
Puget Sound refinery
The Puget Sound Refinery is an oil refinery in Anacortes, Washington, owned by HF Sinclair since 2021 and operating since 1957, with a capacity of 149,000 barrels per day.
Pumpjack
A pumpjack, also known as a horsehead pump or nodding donkey, is the surface machine that drives a plunger pump to lift oil from a well.
Putaohua Oil Field
Putaohua Oil Field (葡萄花油田) is an oil field in the southern Daqing placanticline of the Songliao Basin in northeastern China, producing from the Putaohua reservoir.
Pyrenees Oil and Gas Field
The Pyrenees Oil and Gas Field is a group of six offshore oil fields about 45 km northwest of Exmouth, Western Australia, producing since 2010.
Qarn Alam Oil and Gas Field
Qarn Alam is an oil field in central Oman operated by Petroleum Development Oman, discovered in 1972 and home to the world's first full-field steam injection project in a fractured carbonate reservoir.
Qingcheng Shale Oil Field
Qingcheng Shale Oil Field (庆城油田) is a shale oil field in Qingyang, Gansu Province, China, discovered by PetroChina in 2019 and China's largest, with reserves exceeding 1 billion tons.
Qinhuangdao 32-6 Oil Field
Qinhuangdao 32-6 Oil Field (秦皇岛32-6油田, often abbreviated QHD 32-6) is a heavy-oil field in Bohai Bay, China, discovered by CNOOC in 1995 and producing since 2001.
Quesqui Oil and Gas Field
Quesqui is a giant onshore gas and condensate field in Huimanguillo, Tabasco, Mexico, discovered by Pemex in 2019 and announced as Mexico's biggest oil discovery since 1987.
Quifa Oil Field
Quifa Oil Field is a heavy-oil field in the Llanos Orientales basin of eastern Colombia, operated by Frontera Energy with Ecopetrol since commercial viability in 2010.
Qurna West 1 oil field
Qurna West 1, also known as West Qurna 1, is a giant oil field in southern Iraq producing about 550,000 barrels per day under operator PetroChina since 2024.
Qurna West 2 oil field
Qurna West 2, also known as West Qurna-2, is a giant oil field in southern Iraq near Basra, developed by Russia's Lukoil from 2010 to 2026.
Rabasa oil field
Rabasa (Campo Rabasa) is an onshore oil and gas field near Agua Dulce, Veracruz, Mexico, discovered in 2008 and operated by Pemex, with production awarded to Latina in 2026.
Rabi oil field
The Rabi oil field, also called Rabi-Kounga, is a giant onshore oil field in southwestern Gabon, discovered by Shell Gabon in 1985 and Gabon's largest onshore field.
Racemosa gas field
Racemosa gas field is an operating onshore natural gas field in Mexico, wholly owned and operated by PEMEX, whose associated gas and oil output began in 2021.