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diatomite formations typified

Pacific Coast Oil Trust

The Diatomite formation in the Orcutt oilfield is a shallow zone that lies approximately 100 to 900 feet below the surface. PCEC began cyclic steam development in 2005 and was producing 49 Diatomite wells using the process described above as of December 31, 2011. PCEC began a project expansion in 2011 to increase the total Diatomite project to

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Regional Geologic Setting of Late Cenozoic Lacustrine

sources of diatomite, and a better understanding of their for-mation and geologic settings may aid diatomite exploration and land-use management. Diatomite deposits in the Great Basin are the products of two stages: (1) formation in Late Cenozoic lacustrine basins and (2) preservation after formation. Processes that favored

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DIATOM METHODS

Diatomite formation seems to have been particularly prevalent in the Miocene, the Plio-Pleistocene, and during the early to middle Holocene periods. Because of the properties conferred on

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Freshwater Diatomite Deposits in the Western United States

The formation of a diatomite deposit in a freshwater lake requires that many processes take place in and adjacent to the lake. The ab-sence of one or more of these processes can limit or prevent the growth of diatoms and thus the formation of a thick diatomite depos-it. Indeed, far more lacustrine sediments in

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Fracturing Results in Diatomaceous Earth Formations, South

At the time our research began, fracture treatments were uncommon in the diatomaceous earth zones in the San Joaquin Valley. Very modest, discouraging results were reported from one area 1 with somewhat more encouraging results being reported from another area 2 when oil-base fracturing fluids were used. Personal communications with various sources confirmed that fracturing had met with very

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Diatomaceous earth

Diatomaceous earth (/ ˌ d aɪ. ə. t ə ˈ m eɪ. ʃ ə s /), diatomite (/ d aɪ ˈ t. ə ˌ m aɪ t /), or kieselgur/kieselguhr is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder. It has a particle size ranging from more than 3 μm to less than 1 mm, but typically 10 to 200 μm. Depending on the granularity, this powder

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Belridge Giant Oil Field, Diatomite Pool

Dec 17, 2006Dec 17, 2006Aera Energy LLC (a company owned jointly by Shell ExxonMobil) currently produces 65 thousand barrels (10,300 cu m) of oil and 40 million CF (1.1 million cu m) of gas daily from a sequence of deep marine diatomite layers in the Miocene Monterey Formation. The diatomite sequence is vertically continuous for over 2000 ft (600 m) and covers about

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Oil production from diatomite formations by fracture

Such a reservoir is typified by the diatomite formations in the Lost Hills or Cymric Fields which are characterized by depths of about 1000 feet, with thicknesses of about 100 to 300 feet; and having a porosity of about 50%, an oil saturation of about 60%, an oil API gravity between about 13 to 30 degrees, a water saturation of about 40%, and a

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What is diatomite?

At burial depths between 600 to 1500 m and temperatures ranging from 50 to 80C, as found for example in the Monterey Formation, diatomite is transformed into opaline chert with a low porosity of around 10% (Isaacs, Reference Isaacs and Isaacs 1981b, Reference Isaacs, Garrison, Douglas, Pisciotto, Isaacs and Ingle 1981c).

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Sisquoc Formation

The Sisquoc Formation is a sedimentary geologic unit widespread in Southern California, both on the coast and in mountains near the coast.Overlying the Monterey Formation, it is of upper Miocene and lower Pliocene age (from about 4 to 6 million years old). The formation consists of claystone, mudstone, siltstone, shale, diatomite, and conglomerates, with considerable regional variation, and

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Diatomite Formation

Successful application in diatomite reservoirs is forecast to be possible in the current low oil-price environment. Economic application in fractured shales, assuming similar imbibition behavior as in diatomites, would require a higher oil price because of the higher well costs and lower oil content relative to diatomite projects.

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Diatomite

Diatomite formation seems to have been particularly prevalent in the Miocene, the Plio-Pleistocene, and during the early to middle Holocene periods. Because of the properties conferred on diatomite sediment by a high silica content and a fine-grained texture, these extensive natural deposits are

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Diatomite Statistics and Information

Diatomite is a chalk-like, soft, friable, earthy, very fine-grained, siliceous sedimentary rock, usually light in color (white if pure, commonly buff to gray in situ, and rarely black). It is very finely porous, very low in density (floating on water at least until saturated), and essentially chemically inert in

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Diatomite and Diatomaceous Earth

What is Diatomite? Diatomite is a friable light-colored sedimentary rock that is mainly composed of the siliceous skeletal remains of diatoms. It is a very porous rock with a fine particle size and a low specific gravity. These properties make it useful as a filter media, an absorbent, and as a lightweight filler for rubber, paint, and plastics.

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