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Combination property experimental device and performance estimating method for sand-preventing sieve tube

A sand control screen and comprehensive performance technology, applied in the field of unconsolidated sandstone oil and gas field development

Active Publication Date: 2012-02-15
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of evaluation methods and supporting experimental detection methods that can reflect the above-mentioned performances and comprehensive performance of sand control screens.

Method used

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  • Combination property experimental device and performance estimating method for sand-preventing sieve tube
  • Combination property experimental device and performance estimating method for sand-preventing sieve tube
  • Combination property experimental device and performance estimating method for sand-preventing sieve tube

Examples

Experimental program
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Effect test

Embodiment

[0078] An experimental device for comprehensive performance testing of sand control screens, such as Figure 1-Figure 6 As shown, it includes a closed main tank, a simulated well wall sleeve 4, a simulated casing 5, a simulated perforation hole 7 and a fastening tie rod 12; the detachable simulated well wall sleeve 4 and simulated casing 5 are nested in the The closed main tank is located at the axis of the closed main tank; the simulated perforation hole 7 is assembled in the hole of the simulated well wall sleeve 4 and the simulated casing 5; the fastening rod 12 for fastening the main tank is connected with the The top cover 1 of the main tank is connected to the support bottom 3; the sand control screen comprehensive performance testing experimental device is also equipped with a split flow system 17, a constant flow liquid supply system 18, a real-time flow monitoring system 19, and a sand output monitoring system 20 and pressure real-time acquisition system 21.

[0079]...

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PUM

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Abstract

The invention discloses a combination property experimental device and a performance estimating method for a sand-preventing sieve tube, which belong to the technical field of loose sandstone oil and gas field development. The device comprises a closed main tank body, a simulating well wall sleeve, a simulating casing, a simulating jet hole eyelet and a fastening tie rod; the main tank body comprises a top cover, a barrel side wall and a supporting bottom; the side wall of the main tank body is provided with eight liquid inlets; the supporting bottom is provided with one liquid outlet and seven pressure testing holes; the top cover is provided with two air exit holes and four assembling hanging rings; both the simulating well wall sleeve and the simulating casing are steel barrels with a plurality of eyelets, are nested in the main tank body and are detachable; the simulating eyelet is a plastic short pipe with better flexility; and the fastening tie rod is a specially-made steel bolt. By using the combination property experimental device and the performance estimating method for the sand-preventing sieve tube, sand-preventing well completion conditions, such as the sand prevention and the gravel packing sand prevention and the like of a jet hole, a bare hole and a sieve tube can be simulated; the radial flow state at the bottom of an actual well is simulated; collected data of flow rate, pressure and sand production rate are analyzed; and one set of performance evaluating method for the sand-preventing sieve tube is provided.

Description

technical field [0001] The invention relates to an experimental device for comprehensive performance detection of a sand control screen and a performance evaluation method, belonging to the technical field of unconsolidated sandstone oil and gas field development. Background technique [0002] At present, sand production has become one of the main problems faced in the exploitation of unconsolidated sandstone reservoirs, and sand control is the main way to solve the sand production problem. As the main downhole sand control tool, sand control screen is widely used in sand control wells. There are many types of sand control screens currently used, including wire-wound screens, slotted liners, double-layer pre-packed gravel wire-wound screens, metal wool sand filter pipes, ceramic sand filter pipes, etc. The sand retaining media of these screens are different, and the sand control effect depends on the characteristics of the screen itself and the properties of the formation s...

Claims

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Application Information

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IPC IPC(8): G01M99/00
Inventor 董长银刘春苗刘永红武龙李志芬
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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