Wellhead conversion device of fire flooding injection well and method of wellhead conversion device
A conversion device and conversion method technology, which is applied in the direction of wellbore/well components, earthwork drilling, production fluid, etc., can solve the problems of increasing the labor intensity of test workers, and achieve the effects of simple structure, reduced operation intensity and high installation time efficiency
Inactive Publication Date: 2018-03-27
BC P INC CHINA NAT PETROLEUM CORP
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Problems solved by technology
In the above two cases, when the fire drive steam injection well is to be tested on site, it is necessary to connect a lot of adapters on the upper part of the wellhead before it can be connected with our test lubricator thread or clamp, which increases the labor intensity of the test workers
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[0042] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art Modifications to various equivalent forms of the present invention fall within the scope defined by the appended claims of the present application.
[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments, and is not intended to limit the application.
[0044] It should be noted that when an element is referred to as being “d...
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Abstract
The invention discloses a wellhead conversion device of a fire flooding injection well and a method of the wellhead conversion device. The wellhead conversion device of the fire flooding injection well has the same inner diameter, the wellhead conversion device of the fire flooding injection well comprises a hollow rotary type body, and the hollow part is a penetrating hole; the body is provided with the first end and the second end which are opposite, a first inner thread is arranged at the position close to the inner side of the first end, a first outer thread is arranged at the position close to the outer side of the first end, a second inner thread is arranged at the position close to the inner side of the second end, and a flange mechanism is arranged outside the second end; and the outer side of the body is provided with a steam injection hoop joint. According to the wellhead conversion device of the fire flooding injection well and the method of the wellhead conversion device, the requirements of the processes such as fire flooding injection well wellhead testing are well met, the mounting process is simplified, the operation intensity of field personnel is reduced, and thefire flooding production time is improved.
Description
technical field [0001] The invention relates to the technical field of fire-flooding development, in particular to a wellhead switching device for fire-flooding injection wells and a method thereof. Background technique [0002] At present, the development methods for heavy oil mainly include conventional steam stimulation, steam flooding, SAGD and fire flooding. For example, currently, as a typical heavy oil field, Huanxi Oilfield mainly focuses on steam huff and puff and steam flooding, supplemented by fire flooding. At present, the development of fire flooding is still in the pilot test stage, and the relevant supporting facilities are not perfect. [0003] Fire flooding technology is a cutting-edge technology in the field of heavy oil thermal recovery. Compared with other thermal recovery methods, fire flooding has obvious technical advantages: high thermal efficiency, wide range of applicable oil reservoirs, less environmental pollution, and high recovery efficiency. ...
Claims
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Login to View More IPC IPC(8): E21B33/03E21B43/243
CPCE21B33/03E21B43/243
Inventor 贾财华李洪波张巍孙立超郑大伟徐江宏房中甲
Owner BC P INC CHINA NAT PETROLEUM CORP