Pressure detection device for tight oil reservoir air injection
A technology for tight oil reservoirs and detection devices, which can be used in measurement, wellbore/well components, production fluids, etc., and can solve problems such as hidden safety hazards, troublesome use, and detection.
Active Publication Date: 2021-06-29
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology
[0004] Traditional oil production and gas injection equipment have relatively simple functions, and it is not convenient to detect the pressure after gas injection during use, which has certain potential safety hazards. At the same time, some current pressure detection devices have a single structure and insufficient functionality, which is troublesome to use
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[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0027] It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for...
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The invention discloses a pressure detection device for tight oil reservoir air injection. The pressure detection device comprises a monitoring structure, an adjusting structure, an auxiliary supporting structure and a connecting box. A connecting cavity is formed in the connecting box, and a sliding groove is formed in the top end of the connecting cavity. The monitoring structure comprises a mounting seat, a connecting shaft is arranged at the bottom end of the mounting seat, the top end of the connecting shaft is rotationally connected with the mounting seat through a bearing, and the bottom end of the connecting shaft is fixedly connected with the top end of the connecting box. A rotating plate is arranged at the top end of the mounting seat, one end of the rotating plate is rotationally connected with the mounting seat, and a camera is embedded in the outer end of the rotating plate. A corrugated pipe is arranged at the top end of an air outlet pipe, and when the pressure detection device is connected into air injection equipment, the connection angle can be finely adjusted through the corrugated pipe; and meanwhile, a ball at the top end of a screw can rotate in a connecting groove, then a fastening nut is tightened, and at the moment, the screw can play a role in supporting the corrugated pipe.
Description
technical field [0001] The present application relates to the technical field of tight oil and gas, in particular to a pressure detection device for air injection in tight oil reservoirs. Background technique [0002] Petroleum is divided into crude oil, natural gas, natural gas liquid and natural tar, etc., but it is customary to use "oil" as the definition of "crude oil". There are oil reserves in some areas of the upper crust, and the main components are mixtures of various alkanes, cycloalkanes, and aromatic hydrocarbons, which are one of the main objects of geological exploration. [0003] Tight oil and gas refers to petroleum gas stored in reservoirs such as tight sandstone and tight carbonate rock with overburden matrix permeability less than or equal to 0.1×10-3 μm2 (air permeability less than 1×10-3 μm2). Generally, a single well has no natural productivity or the natural productivity is lower than the lower limit of industrial oil and gas flow, but industrial oil ...
Claims
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Login to View More IPC IPC(8): E21B47/06E21B43/16
CPCE21B47/06E21B43/168
Inventor 王亮亮王杰祥王腾飞陈毅柏宗宪
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)