Oil well wax precipitation detection rod
A technology for detecting rods and oil wells, which is applied to wellbore/well components, earth-moving drilling, etc., can solve the problems of invisibility, decline in production, passive production, etc., so as to improve the efficiency and accuracy of judgment, reduce labor intensity, and save oil production. cost effect
Inactive Publication Date: 2011-05-11
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the amount of wax deposition reaches a certain level, the load of the pumping unit will increase and the output will decrease. In severe cases, the oil flow channel will be blocked, and the sucker rod will be stuck in the wellbore by wax, resulting in the failure of normal production of the oil well. Therefore, it is necessary to Take certain measures to clean wax deposits in oil wells
[0003] The problem of wax deposition in oil wells has existed for a long time. The problem of wax deposition in oil wells in some oilfields in my country is widespread. A lot of manpower and material resources have been spent on the treatment of wax deposition. However, there is no simple observation device for the wax deposition status of oil production wells so far.
[0004] Usually, the method of judging the degree of wax deposition in oil wells is to infer the degree of wax deposition by analyzing the changes in parameters such as surface pumping unit load and wellhead pressure. The state of wax deposition, which will bring a certain passiveness to the production
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
[0017] Such as figure 1 As shown, an oil well wax detection rod, the oil well wax detection rod includes a detection rod body 1 and a nozzle sleeve plug 2; the nozzle sleeve plug 2 is installed in the nozzle sleeve 3 at the wellhead of the oil well; the detection One end of the rod body 1 is connected with the oil nozzle sleeve plug 2 and is located in the oil flow channel. The oil flow channel is for oil to enter from the oil pipeline 4 and flow into the oil removal pipeline 5 through the oil nipple cover 3 .
[0018] One end of the probe body 1 is welded to the oil nipple sleeve plug 2 .
[0019] One end of the probe body 1 is provided with a thread, which is threadedly connected with the oil nozzle sleeve plug 2 .
[0020] The material of the detection rod body 1 is the same as that of the tubing in the wellbore.
[0021] When the waxy crude oil enters the wellbore from the formation and rises in the wellbore, with the change of temperature, pressure and other factors, t...
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 provides an oil well wax precipitation detection rod belonging to the field of petroleum geology and comprising a detection rod body and an oil nozzle sleeve plug, wherein the detection rod body is connected with the oil nozzle sleeve plug arranged on a wellhead nozzle sleeve of an oil well, and the detection rod body is placed in an oil flow channel. By using the oil well wax precipitation detection rod provided by the invention, the oil well wax precipitation degree is observed in real time at the wellhead, a detection device can be used for rapidly and conveniently checking the wax precipitation degree when the normal production of the oil well is carried out so that more effective paraffin removal measures are taken. The judging efficiency and the judging accuracy of the wax precipitation degree are improved, the oil extraction cost is saved, and the labor intensity of workers is lowered; in addition, the invention has simple structure, is convenient for use, and provides reliable basis for judging the wax precipitation degree of the oil well.
Description
technical field [0001] The invention belongs to the field of petroleum geology, and in particular relates to an observation device for the wax deposition condition of an oil production well, that is, an oil well wax deposition detection rod. Background technique [0002] During the production process of oil wells with high wax content, the crude oil enters the wellbore from the formation and then to the surface. Due to changes in temperature, pressure and other factors, the paraffin dissolved in the crude oil will crystallize and precipitate, and part of the precipitated wax will be deposited in the The inner wall of the tubing and the outer surface of the sucker rod. When the amount of wax deposition reaches a certain level, the load of the pumping unit will increase and the output will decrease. In severe cases, the oil flow channel will be blocked, and the sucker rod will be stuck in the wellbore by wax, resulting in the failure of normal production of the oil well. There...
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 Applications(China)
IPC IPC(8): E21B49/08
Inventor 武明辉王建伟程喆张海君
Owner CHINA PETROLEUM & CHEM CORP