Foaming mechanism, high-energy gas foam fracturing device and process
A technology of high-energy gas fracturing and high-energy gas, which is applied in the direction of production fluid, wellbore/well components, drilling composition, etc., and can solve the problem that it is difficult to form fracture network fractures, and cannot produce large-area fracture surfaces, and between layers. To avoid problems such as poor inter-communication, to achieve the effect of convenient operation, simple structure and high liquid efficiency
Active Publication Date: 2021-02-19
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
[0006] In addition, the present invention provides a high-energy gas foam fracturing process, which uses the high-energy gas foam fracturing device for fracturing construction to solve the problem that the existing foam fracturing process can produce wider cracks but is difficult to form a fracture network And the high-energy gas fracturing process can produce fracture networks, but the fractures are short, unable to produce large-area fracture surfaces, and the communication between layers is poor
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[0042] The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. However, the present invention can be fully understood by those skilled in the art about the parts that are not described in detail.
[0043] In addition, those of ordinary skill in the art should understand that the provided drawings are only for illustrating the objects, features and advantages of the present invention, and the drawings are not actually drawn to scale.
[0044] At the same time, unless the context clearly requires, the words "include", "include" and other similar words in the entire specification and claims should be interpreted as an inclusive meaning rather than an exclusive or exhaustive meaning; that is, "include but not limited to the meaning of ".
[0045] figure 1 It is a schematic structural v...
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The invention discloses a foaming mechanism, a high-energy gas foam fracturing device and a process. The foaming mechanism and the high-energy gas fracturing device are combined to form the high-energy gas foam fracturing device, wherein the foaming mechanism is used for forming foam so as to perform foam fracturing on a target layer; and the high-energy gas fracturing device continuously performshigh-energy gas fracturing on the target layer to solve the problems that a traditional foam fracturing process can generate wider cracks but is difficult to form a crack net, and a high-energy gas fracturing process can generate the crack net but is short in cracks, cannot generate large-area crack surfaces, and is weak in communication between layers.
Description
technical field [0001] The invention relates to a horizontal well fracturing device and a fracturing process. Background technique [0002] Foam fracturing in the existing fracturing technology has the advantage of high foam fracturing viscosity, which is conducive to opening the formation and producing wider cracks. However, most of the cracks produced by foam fracturing extend up and down. Small, difficult to form a seam network. [0003] High-energy gas fracturing is to use a large amount of high-temperature and high-pressure gas produced by the rapid combustion of gunpowder or rocket propellant in the wellbore to press out a radial multi-fracture system on the production layer, improving the permeability of the near-wellbore zone, thereby increasing the production and injection of oil and gas wells. A production enhancement measure for water well injection. [0004] However, most high-energy gas fracturing fractures have poor extensibility and short fracture lengths, w...
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IPC IPC(8): E21B43/26C09K8/70C09K8/68
CPCE21B43/26C09K8/703C09K8/685
Inventor 张宁吴佳骏南晓函曹广胜隋雨王鑫安宏鑫张紫航郭达李丹徐谦
Owner NORTHEAST GASOLINEEUM UNIV