High yield well out of "three low" sandstone of Niu Lian Lake in Tuha Oilfield
China Petroleum network news, September 6th, Turpan Hami oilfield, Niu ring, Lake District, Lake Ping 42-11 wells after volume fracturing transformation, Nissan oil 28.9 tons. It indicates that the volume fracturing technique of sandstone reservoir of "three lower" in Niu Lian lake has reached a new stage.
The oil reservoirs in the West Mountain are of low porosity, extra low permeability and low pressure, and the natural productivity of the single well is very low. Lake 42-11 is a development wells three Santanghu oilfield Niuquanhu area block, in July 26th this year after drilling, drilled 2823 meters deep, drilled strata of Jurassic West three kiln group. In order to improve the productivity of the well, Tuha oilfield decided to carry out the new cast fracturing transformation for the West three kiln formation.
Technical personnel according to the development experience of Niujuanhu reservoir characteristics and early reservoir, the horizontal well + fast drilling bridge plug volume fracturing technology and optimization of "slippery water + ultra low concentration and low damage high crosslinked composite fracturing fluid, multi period multi cluster large displacement and large amount of fluid volume in fracture network reconstruction considering the distance between adjacent wells wells and the surrounding circumstances, increase the fracturing scale as much as possible, preferably 20-40 quartz sand proppant fracturing, to further reduce the cost.
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