A current collector and a current collector system using the same
A current collector and flow channel technology, which is applied in the field of current collector systems, can solve the problems of easy explosion of the ball, inability to achieve accurate measurement, low reliability and success rate of the ball current collector, etc.
Active Publication Date: 2020-01-10
PETROCHINA CO LTD +1
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In view of this, the present invention provides a current collector and a current collector system using the same to solve the problem that the umbrella-type current collectors used in the horizontal well collection and logging methods are due to the gap between the umbrella ribs of the current collecting umbrella and the casing. The existence of gaps and the impact of the instrument being not centered due to the weight of the logging instrument itself lead to a large leakage of the umbrella collector, which cannot achieve accurate measurement of the fluid in various downhole sections of the low-production horizontal well, and the measurement of the ball collector The reliability and success rate of the well are low, because the ball is easy to be scratched during the downhole process of the ball collector, and the ball is easy to explode due to poor control of the time to pump liquid into the ball
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] The following describes the present invention based on embodiments, but it is worth noting that the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail. However, for parts that are not described in detail, those skilled in the art can also fully understand the present invention.
[0045] In addition, those of ordinary skill in the art should understand that the drawings provided are only to illustrate the purpose, features, and advantages of the present invention, and the drawings are not actually drawn to scale.
[0046] At the same time, unless clearly required by the context, the entire specification and claims, "including", "including" and other similar words should be interpreted as inclusive rather than exclusive or exhaustive meaning; in other words, "including but not including" Limited to the meaning of ".
[0047] The invention is specially developed for...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a current collector and a current collector system applying the same, and relates to the field of oil field testing. The current collector is arranged in a sleeve, an elastic part is arranged on the outer side of a current collector body, and an oil jacket space is formed between the elastic part and the sleeve. The elastic part is connected with a driving mechanism troughan elastic part driving mechanism. The current collector body is provided with a liquid inlet, and the liquid inlet communicates with a current collecting channel in the current collector body, and the current collecting channel is provided with a flow and water content measurement sensor. The driving mechanism controls the elastic part driving mechanism to deform or restore the initial state of the elastic part. The flow and water content measurement sensor is used for measuring the low flow fluid entering the current collecting channel. The problems that the leakage of an umbrella current collector is too large, accurate measurement of fluid in each layer of downhole of a horizontal well with low liquid production cannot be realized, as well as the low logging reliability and success rate of a ball type current collector are solved.
Description
Technical field [0001] The invention relates to the field of oilfield testing, in particular to a current collector and a current collector system using the same. Background technique [0002] At present, the production logging of horizontal wells in China is mainly based on current gathering measurement. The purpose of current gathering is to increase the fluid velocity under the condition of low fluid production, thereby improving the test accuracy of the test instrument. There are two main types of current collection methods: umbrella type current collection method (CN201020611183.8) and ball type current collection method (CN201110347614.3). Umbrella type current collectors have the advantage of high reliability. At present, horizontal well collection logging The method uses this current collector, but due to the gap between the umbrella rib of the current collecting umbrella and the casing and the influence of the instrument not being centered due to the weight of the loggin...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00
CPCE21B47/00
Inventor 李雷谢荣华刘兴斌唐海涛李军王玉玲刘艳玲吕建华王明伟杨浩常晖李洪斌李金凤蔺薇薇张自成孙亮蔡兵马水龙马威关永彪郑惠峰
Owner PETROCHINA CO LTD