Embedded focusing probe

An embedded, probe technology, applied in sampling devices and other directions, can solve problems such as complex probe structure

Active Publication Date: 2012-04-18
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that the probe structure of the dual-fluid channel structure in the prior art is complicated

Method used

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  • Embedded focusing probe
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Embodiment Construction

[0030] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention.

[0031] figure 1 is a schematic diagram of the appearance of the embedded focusing probe according to the embodiment of the present invention, figure 2 Yes figure 1 Bottom view of the embodiment shown, image 3 Yes figure 2 The R-R sectional schematic diagram of the bottom view shown, Figure 4 Yes figure 2 A schematic diagram of the Q-Q section of the bottom view shown, Figure 5 Yes figure 2 Schematic diagram of the V-V section of the bottom view shown.

[0032] like Figure 1 to Figure 5 As shown, the embedded focusing probe of the embodiment of the present invention mainly includes a composite probe 1, a single port base 2, a sealing head (Packer) 3, a ...

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Abstract

The invention discloses an embedded focusing probe, which overcomes the defect that a probe structure of a double-fluid passage structure is complex in the prior art. A central hole of a complex probe in the embedded focusing probe is communicated with a central pipe of a single-port pedestal, the pedestal part of the single-port pedestal is provided with a first pipeline which is communicated with the central pipe of the single-port pedestal, and then an inner suction port passage is formed; and a sealing head is provided with an outer suction hole which is parallel to the central hole axis of the complex probe, and a passage space between the inner layer pipe and the outer layer pipe of the complex probe is communicated with the outer suction hole. The outer suction hole of the sealing head, the passage space between the inner layer pipe and the outer layer pipe of the complex probe and a suction pipe form an outer suction hole passage. The probe provided by the embodiment of the invention comprises a double-fluid passage which can separate a filtrate from ground layer fluid.

Description

technical field [0001] The invention relates to an earth exploration instrument, in particular to an external focusing probe. Background technique [0002] Obtaining high-purity undisturbed formation fluid during drilling is of great significance to the exploration and development of oil and gas fields. Affected by the mud filtrate, it is often very difficult to obtain high-purity undisturbed formation fluid with the existing probe equipment, mainly because the filtrate is continuously mixed into the formation fluid. In order to obtain the required formation fluid, it takes a lot of time to eliminate various fluids that have been contaminated by the filtrate. This not only increases the cost of exploration and development, but also increases the difficulty and danger of the operation. [0003] On the other hand, currently existing probes include different forms of single-fluid channel structure and double-fluid channel structure, but the current single-fluid channel struct...

Claims

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Application Information

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IPC IPC(8): G01N1/14
Inventor 周明高
Owner CHINA NAT OFFSHORE OIL CORP
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