Drilling simulation experiment device

A technology for simulating experimental equipment and drilling, which is used in material inspection products, soil material testing, etc., and can solve problems such as the inability to measure rock drillability.

Inactive Publication Date: 2011-12-21
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing drillability measuring instruments at home and abroad can only measure the drillability of rocks u

Method used

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Embodiment Construction

[0018] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0019] Such as figure 1 , figure 2 , image 3 As shown, the present invention proposes a drilling simulation experiment device 100. The simulation experiment device 100 includes a core clamping mechanism 1 and a drilling mechanism 2 installed coaxially on the upper and lower sides. The core clamping mechanism 1 is connected with a first implement. Pressure mechanism 3, the upper and lower ends of the core clamping mechanism 1 are respectively connected with the first pressure application control pipeline 4 and the second pressure application control pipeline 5, and the drilling mechanism 2 is connected with the second pressure application mechanism 6; as figure 1 , figure 2 As shown, the core clamping mechanism 1 includes a ...

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Abstract

The invention relates to a well drilling simulation test device. The well drilling simulation test device comprises a rock core clamping mechanism, a drilling mechanism, a pressing mechanism and a pressing control pipeline, wherein the rock core clamping mechanism and the drilling mechanism are concentrically arranged above and below a test frame; constant pressure liquid which is applied to the upper end of the rock core by a constant pressure pump of the pressing mechanism and constant pressure liquid or high pressure gas which is pressed on the rock core by a constant pressure pump of the drilling mechanism or a high pressure gas source are converged in a simulated cavity at the bottom of the well, and are controlled to flow out by the pressing control pipeline consisting of a filter, a back pressure device and a flowmeter; the back pressure device is connected with the high pressure gas source of the drilling mechanism and controls the pressure of the simulated cavity at the bottom of the well by controlling the gas supply pressure of the high pressure gas source; the pressing mechanism, a pressure sensor of the back pressure device and the flowmeter transmit signals to a computer; and change of related parameters is controlled by the computer program, so that various drilling schemes are simulated and tested, and indoor test data is provided for increasing drilling speed,improving drilling quality and reducing drilling cost.

Description

technical field [0001] The invention relates to a simulation experiment device for parameters related to drilling in an oil field, in particular to a drilling simulation experiment device that provides reliable theoretical data for near-balanced, under-balanced, and over-balanced drilling in an oil field, so as to formulate a more reasonable drilling implementation plan. Background technique [0002] With the development of drilling technology, near-balanced, under-balanced and over-balanced drilling technologies are all applied, among which under-balanced drilling technology has been proved to be a feasible and cost-effective method. In conventional overbalanced or near-balanced drilling, in addition to carrying cuttings, stabilizing the well wall, and cooling the drill bit, the drilling fluid is more important to balance the formation pressure and prevent the formation fluid from entering the wellbore. In underbalanced drilling, the bottom hole circulation pressure is cons...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 张辉高德利黄鹤
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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