Secondary Shear Method for Determination of Performance Parameters of Polymer Solutions for Oil Displacement
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A polymer solution and polymer technology, which is applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of actual value gaps, only suitable for simulating shearing at a certain point in the formation, and cannot fully reflect all shearing problems. , to achieve a wide range of applications, time-consuming and labor-intensive solutions, and accurate performance parameters.
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A polymer solution and polymer technology, which is applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of actual value gaps, only suitable for simulating shearing at a certain point in the formation, and cannot fully reflect all shearing problems. , to achieve a wide range of applications, time-consuming and labor-intensive solutions, and accurate performance parameters.
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0052] Taking a certain oil field as an example below, the two-stage shearing experimental method for measuring the performance parameters of the polymer solution for oil displacement provided by the present invention is specifically introduced:
[0053] In this embodiment, the experimental apparatus and materials are as follows:
[0054] (1) Viscometer: Brookfield DV-Ⅲ viscometer, produced by American Brookfield Company. Test conditions: the shear rate is 7.34s -1 ; The test range of different types of rotors is shown in Table 1.
[0055] Table 1 Viscosity measurement range of different spindles
[0057] (2) Electronic balance: range 20g ~ 3000g, precision 0.01g;
[0058] (3) Constant temperature water bath, constant temperature range 20℃~100℃, acc...
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
Property
Measurement
Unit
length
aaaaa
aaaaa
length
aaaaa
aaaaa
Login to View More
Abstract
The invention relates to a secondary shearing method for testing performance parameters of an oil displacing polymer solution. The method comprises the following steps: (1) preparing a to-be-tested polymer solution a0, wherein the to-be-tested polymer solution a0 is a solution of oil field water and polymer dry powder which are mixed at random ratio; (2) primarily shearing the to-be-tested polymer solution a0 by using a WARING stirrer to obtain a polymer solution a1 after primary shearing, and testing the viscosity, the condensate dimension, the microstructure, the rheological property, the resistance coefficient, the residual resistance coefficient and the oil displacing effect of the polymer solution a1; and (3) secondarily shearing the polymer solution a1 by using a shearing simulation device for immediate vicinity of a wellbore to obtain a polymer solution a2 after secondary shearing, and testing the viscosity, the condensate dimension, the microstructure, the rheological property, the resistance coefficient, the residual resistance coefficient and the oil displacing effect of the polymer solution a2.
Description
technical field [0001] The invention relates to an experimental method for measuring the performance parameters of the polymer solution for oil displacement, in particular to a secondary shear method for measuring the performance parameters of the polymer solution for oil displacement. Background technique [0002] With the continuous development of economies around the world, the demand for oil and gas resources is also increasing day by day. In the absence of more proven oil and gas reserves, enhancing oil and gas recovery is the only effective way. Polymer flooding is the most widely used method in enhancing oil recovery. Improve oil recovery by injecting polymer solution into the formation to improve mobility ratio and increase swept volume. The biggest problem faced in the process of polymer solution injection into the formation is shear degradation. The shear degradation of the polymer solution directly leads to the degradation of the performance of the polymer solut...
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
