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Mechanical wireless drilling inclinometers

A wireless while drilling, mechanical technology, applied in the direction of surveying, earthwork drilling, wellbore/well components, etc., can solve the problems of difficult implementation, complex structure of inclinometer mechanism, difficult processing, etc., to achieve reliable performance and save inclinometer Time, the effect of long working hours

Inactive Publication Date: 2011-07-27
中石化石油工程技术服务有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the published content, although the automatic adjustment of the inclinometer range can be realized, the structure of the inclinometer mechanism is very complicated, difficult to process, and difficult to realize

Method used

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  • Mechanical wireless drilling inclinometers
  • Mechanical wireless drilling inclinometers
  • Mechanical wireless drilling inclinometers

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Experimental program
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Embodiment Construction

[0018] see figure 1 , the upper cylinder 14, the lower cylinder 27, the angle range adjustment sleeve 17, the upper plug 9, etc. constitute the shell of the instrument, together with the balance piston 31, the pulse shaft 5 and the seals 15 at the joints form a closed chamber, and The damping device 29 is divided into two parts, an upper airtight chamber 24a and a lower airtight chamber 24b, which are filled with lubricating oil. The control mechanism and measuring mechanism of the instrument are in the upper chamber 24a, so that the components of these mechanisms are all separated from the outside and fully lubricated to ensure the normal operation of each component and improve reliability.

[0019] The control mechanism is composed of a limit tube 10, a main spring 11, a steel ball 12, a control tube 16, a control shaft 20, a control spring 19 and the like. The control spring 19 is sleeved on the control shaft 20, and the control cylinder 16 is installed on the outside of t...

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Abstract

A mechanical wireless clinometer for the well to be drilling is composed of measuring unit, control unit, pulse generator, damper, balance piston and sealed casing full of lubricating oil. The pressure pulse signal generated according to the well inclination is transmitted to ground via drilling liquid.

Description

technical field [0001] The invention belongs to the field of drilling engineering in the exploration and development of petroleum and natural gas, and relates to an inclination-while-drilling tool for measuring the inclination of oil and gas wells. Background technique [0002] Inclinometers are widely used and necessary tools in petroleum drilling engineering. With the development of drilling technology, various inclinometers have appeared one after another. The inclinometers currently used in the field can be divided into two series according to different measurement principles, photographic and electronic. Due to the disadvantages of inconvenient operation and low precision, photographic series inclinometers are less and less used in the field at present, and are gradually replaced by electronic series inclinometers. The electronic series of inclinometers use electronic components to measure well deviation. The electronic series of inclinometers currently used include e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/02
Inventor 蔡文军王平祝远征董怀荣张仁龙梁子波
Owner 中石化石油工程技术服务有限公司