Search results
Results From The WOW.Com Content Network
This is a list of oilfield service companies – which provide services to the petroleum exploration and production industry but do not typically produce petroleum. In the list, notable subsidiary companies and divisions are listed as sub-lists of their current parent companies.
Geosteering is the optimal placement of a wellbore based on the results of realtime downhole geological and geophysical logging measurements rather than three-dimensional targets in space. The objective is usually to keep a directional wellbore within a hydrocarbon pay zone defined in terms of its resistivity, density or even biostratigraphy.
There are four types of centralizers: bow-spring, rigid, semi-rigid, and mold-on. Bow-spring centralizers consist of an ease of passage way through narrow hole sections with expansion in targeted locations. Rigid centralizer are made up of solid steel bars or cast iron, with a fixed blade height that are sized to fit specific casing or hole sizes.
Sinopec in Hangzhou, Zhejiang. China Petroleum and Chemical Corporation, or Sinopec, is a Chinese oil and gas enterprise based in Beijing. It is listed in Hong Kong and also trades in Shanghai . Sinopec Limited's parent, Sinopec Group, is the world's largest oil refining, gas and petrochemical conglomerate, headquartered in Chaoyang District ...
Total revenue is usually self-reported by the company, and often reported by neutral, unbiased, reliable publications. Reported data may be subsequently revised or restated due to a wide range of issues such as exchange rates, contract settlements, or mid-year discontinuation of products or services.
Doll was a leading figure in the development of oil well logging and a key technical leader of the Schlumberger oilfield services company. A graduate of the École Polytechnique and École des Mines, he married Anne Schlumberger, daughter of one of the Schlumberger brothers (Conrad), and joined their company.
Wireline truck rigged up to a drilling rig in Canada. In the oil and gas industry, the term wireline usually refers to the use of multi-conductor, single conductor or slickline cable, or "wireline", as a conveyance for the acquisition of subsurface petrophysical and geophysical data and the delivery of well construction services such as pipe recovery, perforating, plug setting and well ...
Logging while drilling (LWD) is a technique of conveying well logging tools into the well borehole downhole as part of the bottom hole assembly (BHA).. Although the terms Measurement while drilling (MWD) and LWD are related, within the context of this section, the term MWD refers to directional-drilling measurements, e.g., for decision support for the smooth operation of the drilling, while ...