Connecting structure formed by data stick, drill collar and internal pup joint and logging while drilling instrument

A logging-while-drilling and data technology, applied to drilling equipment, measurement, drill pipe, etc., can solve the problem of insufficient single-core connectors

Active Publication Date: 2016-07-20
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the cycle test, it is necessary to monitor the operation of the system. After the test is completed, the data of the

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  • Connecting structure formed by data stick, drill collar and internal pup joint and logging while drilling instrument
  • Connecting structure formed by data stick, drill collar and internal pup joint and logging while drilling instrument
  • Connecting structure formed by data stick, drill collar and internal pup joint and logging while drilling instrument

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Embodiment Construction

[0038] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0039] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways than described here. Therefore, the protection scope of the present invention is not limited by the specific implementation disclosed below. Example limitations.

[0040] The connection structure formed by the data rod, the drill collar and the internal nipple and the logging-while-drilling tool of some embodiments of the present invention are described below with reference to the acco...

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Abstract

The invention discloses a connecting structure formed by a data stick, a drill collar and an internal pup joint and a logging while drilling instrument.The data stick comprises an outer sleeve with a through hole, an inner sleeve with a through hole, a first multi-core plugging component, a second multi-core plugging component and a pressure cap, wherein the inner sleeve is mounted in the outer sleeve and rotates relative to the outer sleeve, the first multi-core plugging component is mounted inside one end of the inner sleeve and is positioned by a spigot of the outer sleeve, the second multi-core plugging component is mounted inside the other end of the outer sleeve and is connected with the first multi-core plugging component, and the pressure cap is mounted at the other end of the outer sleeve, sleeves the inner sleeve and is positioned by a spigot of the inner sleeve so as to prevent the inner sleeve from shedding from the outer sleeve.The data stick is used for write in and data exchange of an internal chip and a circuit of the pup joint and procedure chips of an external display terminal, an input terminal, a power source and the like of the logging while drilling instrument, instrument operation state monitoring, power transmission and the like.

Description

technical field [0001] The invention relates to oil exploitation equipment technology, in particular to a connection structure formed by a data rod, a drill collar and an internal short joint and a logging-while-drilling instrument. Background technique [0002] Measurement While Drilling (MeasureWhileDrilling: MWD) and Logging While Drilling (LoggingWhileDrilling: LWD) are the key technologies to complete large-angle and horizontal well drilling, real-time well site data acquisition, interpretation, on-site decision-making and guidance to complete geosteering drilling. Logging, drilling and reservoir description and other disciplines and technologies can simplify drilling procedures, save costs, improve drilling precision, adjust drilling design and increase recovery. [0003] It is generally believed that LWD includes MWD. Generally, the sub-section is used as the functional unit of the LWD tool, and each functional tool is a sub-section, for example: the resistivity sub-...

Claims

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Application Information

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IPC IPC(8): E21B47/12E21B47/01E21B17/16
CPCE21B17/16E21B47/01E21B47/12
Inventor 王智明菅志军陆庆超张峥刘占龙
Owner CHINA NAT OFFSHORE OIL CORP
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