Simulation efficiency testing equipment for medicament used in oil well casing

A technology for oil well casing and testing equipment, which is applied in the field of pharmacy simulation performance testing equipment, can solve the problems of reduced production, invalid medicament, unsatisfactory expectations, etc., and achieves the effect of saving manpower and material resources

Active Publication Date: 2020-03-24
DONGYING BAIYANG PETROLEUM TECH CO LTD
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to improve oil recovery efficiency, it is necessary to inject various chemicals into the well, such as wax remover, viscosity reducer, drag reducer, plugging remover, scale inhibitor, corrosion inhibitor, emulsifying dispersant, gel breaker, etc. , The dosing position includes adding from the wellhead of the oil well, adding from the wellhead of the water injection well, and adding from the water injection pipeline. To improve the efficacy, in addition to the use of simple agents, compound formulas are often used. Each well has different parameters such as geology, production period, oil-water composition, formation temperature, and groundwater salinity. Efficacy, two methods are often used for prediction and detection, one is laboratory prediction, laboratory testing of the physical and chemical performance indicators of the agent to be filled, such as the viscosity of the agent, surface tension, pH value, solid content, etc., These indicators are all necessary indicators. It can be considered that if these indicators are not met, the technical requirements may not be met after injection downhole, and the production increase effect will not be achieved. However, even if these laboratory indicators are qualified, it is not a sufficient condition. The downhole also sometimes fails to meet expectations. The second is to put it into the downhole for actual verification. If the verification is successful and the expected increase in production is achieved, it is considered satisfactory. However, in the existing technology, there is a problem that it must be injected larger Quantity (dozens of tons) of chemicals, otherwise, the affected area is too small to see the effect. The bigger problem is that once the test is unsuccessful, there will be drugs that are ineffective or even harmful, such as clogging the oil circuit, reducing production, and polluting Downhole environment and other conditions, after a large amount of countercurrent injection of chemicals, it is difficult to repair quickly after returning to the original flow direction, which will cause waste of chemicals, and there is a major risk of oil well damage or even scrapping. What is the problem, we can not open it to see, we can only guess based on theory and experience, formulate an improvement plan, and conduct a new test, especially for tertiary oil recovery, a wide variety of surfactants are used, which is still relatively relatively low in our country. There are not many mature formulas and processes for new technologies, and a lot of experimental research work is still needed in the face of various oil well conditions.

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Simulation efficiency testing equipment for medicament used in oil well casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment one, with reference to figure 1 : Simulation performance testing equipment for chemicals used in oil well casings, including a liquid storage tank 1, which can store the tested chemical liquid in the liquid storage tank 1. The upper end is open and the lower end is closed. The size is about Φ300mmX220mm. The inner bottom surface of the liquid tank 1 is fixed with a middle barrel support 13 on one side near the center, the middle barrel support 13 can support and fix the position of the middle barrel 3, and the inner bottom surface of the liquid storage barrel 1 is fixed on the other side near the center. The test barrel support 12, the test barrel support 12 can support and fix the position of the test barrel 4, the middle barrel 3 is installed on the top of the middle barrel support 13, the diameter of the middle barrel 3 is approximately equal to the casing of the oil well, and the size is about It is Φ150mmX220mm, the upper end is open, and the middle barr...

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

No PUM Login to View More

Abstract

The invention discloses simulation efficiency testing equipment for a medicament used in an oil well casing. The equipment comprises a liquid storage barrel, a middle barrel support is fixed to the side, close to the center, of the inner bottom face of the liquid storage barrel, a test barrel support is fixed to the other side, close to the center, of the inner bottom face of the liquid storage barrel, a middle barrel is installed at the top of the middle barrel support, and a test barrel is installed at the top of the test barrel support. In the present invention, a simple method and equipment are adopted; the detection problem of underground chemicals is basically solved; before the medicament is put into production and use; the analogue simulation test is realized; adoption of this technology, a small amount (about one thousandth of the actual measurement of an oil well) of medicament can be used; through simulation testing, a conclusion whether the reagent is effective or not is obtained, the effect of the reagent can be qualitatively determined, data positively related to a production well experiment can be obtained, data close to reality can be obtained after multiple times of comparison with production practice, and manpower and material resources can be greatly saved compared with direct testing in a production well.

Description

technical field [0001] The invention belongs to the technical field of petroleum equipment, in particular to simulation performance testing equipment for chemicals used in oil well casings. Background technique [0002] In order to improve oil recovery efficiency, it is necessary to inject various chemicals into the well, such as wax remover, viscosity reducer, drag reducer, plugging remover, scale inhibitor, corrosion inhibitor, emulsifying dispersant, gel breaker, etc. , The dosing position includes adding from the wellhead of the oil well, adding from the wellhead of the water injection well, and adding from the water injection pipeline. To improve the efficacy, in addition to the use of simple agents, compound formulas are often used. Each well has different parameters such as geology, production period, oil-water composition, formation temperature, and groundwater salinity. Efficacy, two methods are often used for prediction and detection, one is laboratory prediction,...

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
no application Login to View More
Patent Type & AuthorityApplications(China)
IPC IPC(8): G01N33/00G01M10/00
CPCG01N33/00G01M10/00
Inventor杨震龚知远王小龙钟银高连涛周洪涛姜红傅桂云
OwnerDONGYING BAIYANG PETROLEUM TECH CO LTD