In-situ observation tester simulating sand cleaning process in drilling

A testing machine and in-situ technology, which is applied in measurement, earthwork drilling, wellbore/well components, etc., can solve the problem of starting rolling without comprehensive consideration of drilling fluid formula parameters, rotational speed parameters, torque parameters, pressure parameters, drill pipe eccentricity parameters, etc. Problems such as moving and rotating are achieved to improve economic benefits and prevent drilling accidents

Active Publication Date: 2015-12-02
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
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Problems solved by technology

The previous research on sand removal tests in the drilling process was less, and it was mainly based on software simulation research, without comprehensive consideration of different well types, drilling fluid formulation parameters, speed p

Method used

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  • In-situ observation tester simulating sand cleaning process in drilling
  • In-situ observation tester simulating sand cleaning process in drilling
  • In-situ observation tester simulating sand cleaning process in drilling

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Embodiment Construction

[0052] 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.

[0053] like figure 1 As shown, the present invention provides an in-situ observation test machine for simulating the sand removal process of drilling, including a bottom plate, a slide plate, a transparent simulated casing, a fixed cylinder liner, a simulated hollow drill pipe, a rotating drive mechanism for the drill pipe, and a drilling fluid circulation control device. and data acquisition and processing devices. The bottom plate extends along a longitudinal direction, assuming figure 1 The left end is the front end, and the right end is the rear end. The rear end of the bottom plate is hinged with the base, and the base is fixed. The bottom plate is connected with an inclination angle driving device. into different angles. ...

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Abstract

The invention relates to an in-situ observation tester simulating a sand cleaning process in drilling, comprising a bottom plate, a slide plate, a transparent simulation sleeve, a fixing cylinder sleeve, a simulation hollow drill stem, a drill stem rotation drive mechanism, a drilling fluid cycle control device and a data acquisition device. In-situ observation in the sand cleaning process of drilling is tested by integrating parameter such as eccentricity, hole drift angle, drilling fluids of different features, pressure, flow, flow speed, torque, different sands, sand addition, sand-cleaning eyeholes and drilling stem sleeve surface roughness, and great significance is brought to sand cleaning mechanism of the drilling process, abrasion of the sleeve, sand cleaning features of drilling fluids and the like; the tester is simple in structure, has a clear principle and is convenient to operate.

Description

technical field [0001] The invention relates to the research on the deposition and removal process of drilling sand under different drilling conditions in petroleum drilling engineering, and in particular relates to an in-situ observation test machine for simulating the drilling sand removal process. Background technique [0002] With the rapid development of the global economy, the demand for petroleum products is increasing, and the scope of oil reservoir exploitation is increasing. However, unconsolidated sandstone oil reservoirs in my country have a wide distribution and large reserves, and oil production occupies a very important position. , and oil well sand production is the main contradiction in the exploitation of this type of reservoir, and this problem is particularly prominent, and problems such as sand deposition and sand sinking and pipe sticking also gradually appear during the drilling process, resulting in increased drilling fluid return resistance during dril...

Claims

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Application Information

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IPC IPC(8): E21B47/00E21B49/00
Inventor 郭岩宝杨柳刘书海王德国范肖玉
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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