CN-121993160-A - Logging anti-blocking method and device, electronic equipment and storage medium

CN121993160ACN 121993160 ACN121993160 ACN 121993160ACN-121993160-A

Abstract

The method comprises the steps of obtaining structural data of a well to be analyzed and dynamic data of a well logging tool combination, solving a well logging tool combination dynamic model by utilizing the structural data and the dynamic data, calculating to obtain the motion data of the well logging tool combination, calculating to obtain well wall friction data under different speed measurements according to the motion data of the well logging tool combination, calculating to obtain initial speed measurements of the distribution of a cable winch along the well depth by adopting a fuzzy PID control method, and controlling the cable winch according to the initial speed measurements so as to enable the cable winch to log safely. A well logging anti-blocking method based on a well logging tool combination dynamics model is formed, and the problem that blocking is more frequent due to a complex well bore environment in the well logging operation process is solved.

Inventors

YANG BIN
ZHAO ZHIQIANG
HOU WENHUI
SUN FENG
SUN LIBIN
LI YANJUN

Assignees

中国石油化工股份有限公司
中石化石油工程技术服务股份有限公司
中石化经纬有限公司
中石化经纬有限公司地质测控技术研究院

Dates

Publication Date: 20260508
Application Date: 20241107

Claims (10)

1. A method for logging anti-blocking, comprising: acquiring structural data of a well to be analyzed and dynamic data of a logging tool combination; Solving a logging tool combination dynamics model by utilizing the structural data and the dynamics data, and calculating to obtain movement data of the logging tool combination; according to the motion data of the logging tool combination, calculating to obtain well wall friction data under different speed measurements; Based on the well wall friction data under different speed measurements and the logging tool combination dynamics model, calculating to obtain initial speed measurements of the cable winch distributed along the well depth; And controlling the cable winch according to the initial speed measurement by adopting a fuzzy PID control method so that the cable winch can safely log.
2. The method of claim 1, wherein using the structural data and the kinetic data to solve a logging tool combination kinetic model, calculating motion data of the logging tool combination, comprises: performing a dynamic analysis on the logging tool combination based on the dynamics data to construct the logging tool combination dynamics model; And solving the dynamic model of the logging tool combination by using the structural data and the dynamic data, and calculating to obtain the motion data of the logging tool combination.
3. The method of claim 2, wherein the motion data comprises node displacement, node axial force, unit friction, velocity, and acceleration, and wherein using the structural data and the kinetic data, solving the logging tool combination kinetic model, and calculating the motion data of the logging tool combination comprises: setting a speed boundary and initial conditions corresponding to the logging tool combination dynamics model; adopting a second-order precision finite difference method, solving a dynamic model of the logging tool combination based on the speed boundary and the initial condition by utilizing the structural data and the dynamic data, and calculating to obtain the node displacement of the logging tool combination; And calculating to obtain the node axial force, the unit friction, the speed and the acceleration of the logging tool combination according to the speed boundary, the initial condition, the node displacement and the logging tool combination dynamics model.
4. The method of claim 1, wherein calculating well wall friction data at different speeds according to the motion data of the logging tool assembly comprises: Adopting a machine learning method, and constructing a corresponding well wall friction prediction model according to the motion data of the logging tool combination; And inputting the motion data of the logging tool combination into the well wall friction prediction model, and calculating to obtain well wall friction data under different speed measurements.
5. The method of claim 1, wherein calculating well wall friction data at different speeds according to the motion data of the logging tool assembly comprises: and according to the motion data of the logging tool combination, a preset numerical method is used for measuring the speed of the well to be analyzed, and the well wall friction data under different speed measurement are obtained.
6. The method of claim 1, wherein calculating an initial velocity measurement of the cable winch along the well depth distribution based on the wall friction data at the different velocity measurements and the logging tool combination dynamics model comprises: Based on the well wall friction data under different speed measurements and the logging tool combination dynamics model, combining a preset lowering speed and a preset lifting speed, and calculating to obtain wellhead tension of the logging tool combination when the logging tool combination passes through the wellhead of the well to be analyzed; And adjusting the wellhead tension according to a preset safety tension range so as to calculate the speed distribution of different wellhead tensions in the preset safety tension range and obtain the initial speed measurement of the cable winch distributed along the well depth.
7. A logging anti-snag device, comprising: an acquisition module for acquiring structural data of the well to be analyzed and dynamic data of the logging tool combination The first calculation module is used for solving a logging tool combination dynamics model by utilizing the structural data and the dynamics data, and calculating to obtain movement data of the logging tool combination; the second calculation module is used for calculating and obtaining the well wall friction data under different speed measurements according to the motion data of the logging tool combination; The third calculation module is used for calculating to obtain initial speed measurement of the cable winch distributed along the well depth based on the well wall friction data under different speed measurement and the well logging tool combination dynamics model; And the control module is used for controlling the cable winch according to the initial speed measurement by adopting a fuzzy PID control method so as to ensure that the cable winch can safely log.
8. An electronic device comprising a processor and a memory storing computer readable instructions that, when executed by the processor, perform the method of any of claims 1-6.
9. A storage medium having stored thereon a computer program which, when executed by a processor, performs the method of any of claims 1-6.
10. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the method of any of claims 1-6.

Description

Logging anti-blocking method and device, electronic equipment and storage medium Technical Field The present invention relates to the field of logging operations, and in particular, to a method and apparatus for preventing a logging from being blocked, an electronic device, and a storage medium. Background Logging is one of the important means for obtaining geological data in oil and gas exploration engineering. In the practice of improving the oil and gas exploration benefits and realizing multi-disciplinary intersection, the wide application of logging data will certainly promote the rapid development of the related research field. In the logging operation process, the instrument string is blocked in the falling process and blocked in the lifting process, and the instrument string is a frequently-occurring working condition, mainly because an actual borehole is not smooth, and has irregular borehole walls such as steps, shrinkage, collapse, sand bridges, doglegs and the like, especially under the large environment of improving the drilling speed and efficiency, if the borehole and mud are not well processed, complex borehole environments such as unstable borehole wall, poor borehole track and the like are caused, the situation of the logging is increased when the logging is blocked and blocked is caused, and the drilling fluid is often required to be repeatedly processed, so that the cost is increased and the time is wasted, and even the logging instrument is blocked or falls into the borehole. Therefore, the logging anti-blocking method based on the logging tool combination dynamics model is researched, so that the logging tool combination dynamics model and the fuzzy PID control method are utilized to control the cable winch, and the method has important significance for avoiding the blocking problem of the cable winch, ensuring the safe logging of the cable winch and the sustainable development of logging anti-blocking. Disclosure of Invention The invention provides a logging anti-blocking method, a logging anti-blocking device, electronic equipment and a storage medium, which are used for solving the problem that blocking is more frequent due to a complex well environment in the logging operation process and laying an important foundation for safe logging. In a first aspect, the present invention provides a method for logging anti-sticking, including: acquiring structural data of a well to be analyzed and dynamic data of a logging tool combination; Solving a logging tool combination dynamics model by utilizing the structural data and the dynamics data, and calculating to obtain movement data of the logging tool combination; according to the motion data of the logging tool combination, calculating to obtain well wall friction data under different speed measurements; Based on the well wall friction data under different speed measurements and the logging tool combination dynamics model, calculating to obtain initial speed measurements of the cable winch distributed along the well depth; And controlling the cable winch according to the initial speed measurement by adopting a fuzzy PID control method so that the cable winch can safely log. Optionally, using the structural data and the dynamics data, solving a logging tool combination dynamics model, and calculating to obtain motion data of the logging tool combination, including: performing a dynamic analysis on the logging tool combination based on the dynamics data to construct the logging tool combination dynamics model; And solving the dynamic model of the logging tool combination by using the structural data and the dynamic data, and calculating to obtain the motion data of the logging tool combination. Optionally, the motion data comprises node displacement, node axial force, unit friction, speed and acceleration, the structural data and the dynamics data are utilized to solve the dynamic model of the logging tool combination, and the motion data of the logging tool combination are obtained through calculation, wherein the motion data comprise: setting a speed boundary and initial conditions corresponding to the logging tool combination dynamics model; adopting a second-order precision finite difference method, solving a dynamic model of the logging tool combination based on the speed boundary and the initial condition by utilizing the structural data and the dynamic data, and calculating to obtain the node displacement of the logging tool combination; And calculating to obtain the node axial force, the unit friction, the speed and the acceleration of the logging tool combination according to the speed boundary, the initial condition, the node displacement and the logging tool combination dynamics model. Optionally, according to the motion data of the logging tool combination, calculating to obtain the well wall friction data under different speed measurement, including: Adopting a machine learning method, and constructing a corresponding well wall f