Bamboo joint type connection method of logging instrument string
A logging instrument and connection method technology, which is applied in the directions of measurement, earthwork drilling, borehole/well components, etc., can solve problems such as untight connection of instruments, affect logging operations, and inaccurate measurement, so as to improve safety performance, improve logging efficiency, and improve accuracy
Inactive Publication Date: 2017-05-31
吉辰智能设备集团有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to propose a connection method of string bamboo joints for well logging instruments, which solves the problem of unfastened connection of instruments, inaccurate measurement, and due to the unified power supply in series, the power of individual instruments is exhausted or short circuit, open circuit, etc. Problems that affect the operation of the entire instrument string, thereby affecting logging operations
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[0014] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0015] The connection method of the bamboo-type logging instrument series, the instrument series includes the azimuth energy spectrum 2, the compensated neutron 3, the lithology density 6, the digital sound wave 8 and the caliper logging tool 9, which are sequentially connected in series. A rotating short joint 4 is connected between the compensation neutron 3 and the lithology density 6, and the above-mentioned instruments are connected by threaded pull rings 10, and protective caps 1 are provided at the front and rear ends of the instrument string.
[0016] A posture holder 5 is arranged between the rotating sub-joint 4 and the lithology density 6 .
[0017] The caliper logging tool 9 is a plate-type spring-type caliper logging tool.
[0018] Each logging instrument of the instrument string is pr...
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The invention discloses a bamboo joint type connection method of a logging instrument string. The instrument string comprises an azimuth energy spectrum, compensated neutrons, a lithology density, digital acoustic waves and a caliper logging instrument which are successively connected, a rotation short section is arranged between the compensated neutrons and the lithology density, each instrument is connected by a thread pulling ring, the front and rear end of the instrument string are provided with protective cap; a gesture maintainer is arranged between the rotation short section and the lithology density; the caliper logging instrument adopts plate type spring caliper logging instrument; the inner portion of each logging instrument in the instrument string is provided with an independent power supply unit, the power supply unit is powered by a high temperature resistant lithium battery; a flexible short section is arranged between the lithology density and the digital acousitc waves; the bamboo joint type connection method of the logging instrument string has the advantages that each instrument in the whole instrument is provided with an independent unit, a high temperature resistant lithium battery is used for power supply, and the efficiency and safety of logging is improved; each instrument is connected by a thread pulling ring, combined with the gesture maintainer and the flexible short section, not only it's convenient to assembly and disassemble, but also the accuracy of measured data is improved.
Description
technical field [0001] The invention relates to the field of well logging equipment, in particular to a method for connecting bamboo joints of well logging instruments. Background technique [0002] In oil and natural gas exploration and development operations, in order to accurately obtain geological data of underground oil reservoirs, it is necessary to continuously put various logging instruments downhole for logging during drilling operations, because each instrument can only measure one type of downhole data In the past, when logging, it was necessary to put various instruments into the well for logging, and then replace another instrument after collecting data. Due to the variety of instruments, the number of operations required is also high, resulting in high labor intensity and low efficiency. . Later, instrument strings appeared, that is, connecting various logging instruments into a string, and deploying multiple instruments for logging at one time, so that multip...
Claims
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Login to View More IPC IPC(8): E21B47/00
CPCE21B47/00
Inventor宋海滨黄文帜高怀雪
Owner吉辰智能设备集团有限公司