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Technology simulation testing device for horizontal well

A technology of process simulation and test equipment, which is applied in the direction of borehole/well components, measurement, earthwork drilling and production, etc., can solve the problems that the performance of horizontal well process measures cannot be fully and truly obtained, and the lack of simulating horizontal wells can improve the construction efficiency. Safety and reservoir protection effect, promotion of process technology level, promotion of improvement effect

Active Publication Date: 2015-03-18
DRILLING TECH DEV CO LTD OF TIANJIN DAGANG OILFIELD PETROLEUM ENG INST +2
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the lack of test devices that can simulate the actual well conditions of horizontal wells in the existing oil drilling and production test equipment, and the problem that the performance of horizontal well process measures cannot be fully and truly obtained, the present invention provides a horizontal well simulation process test device

Method used

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  • Technology simulation testing device for horizontal well
  • Technology simulation testing device for horizontal well

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Simulation test of horizontal well annulus chemical isolation process. This test includes steps such as device assembly, chemical agent preparation, simulated injection, test result detection and evaluation, etc.

[0025] 1. Device assembly

[0026] First, according to the test plan, assemble the test pipe string 100 and the pipe assembly 200 (the core pipe 25 and the artificial core 19 are not installed on the pipe assembly 200);

[0027] Then by adjusting the height of the lifting bracket 6, the angle of the test string 100 is consistent with the real well deviation, and the test string 100 is fixed;

[0028] Install gates on the union joints 1 at both ends of the casing 15 and close the gates, and simultaneously close all valves of the test string 100, and tighten each plug;

[0029] The cement truck pipeline is connected to the front end of the test pipe string 100, and the pressure seal test is carried out on the test pipe string 100 (compression pressu...

Embodiment 2

[0038] Embodiment 2: Simulation experiment of horizontal well segmented water shutoff technology (see attached figure 2 ), this test included steps such as device assembly, artificial core filling and preparation, annulus chemical sealing, segmented sealing, and simulated mining.

[0039] 1. Device assembly

[0040] First, according to the test plan, assemble the test string 100 and assemble the pipes into 200; install the packer 27 in the annulus of the test tubing 24 and the screen 22 of the test string 100;

[0041]Then by adjusting the height of the lifting bracket 6, the angle of the test string 100 is consistent with the real well deviation, and the test string 100 is fixed;

[0042] Install gates on the union joints 1 at both ends of the casing 15 and close the gates, and simultaneously close all valves of the test string 100, and tighten each plug;

[0043] The cement truck pipeline is connected to the front end of the test pipe string 100, and the pressure seal tes...

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Abstract

The invention provides a technology simulation testing device for a horizontal well. By the technology simulation testing device for the horizontal well, the shortcoming that the existing petroleum drilling and production testing equipment does not have a testing device capable of simulating actual conditions of a horizontal well is overcome. A testing tubular column is horizontally and fixedly arranged on a fixed support and a hoisting support and is connected with a manifold assembly through a high-pressure pipeline; a sieve tube is arranged in a casing of the testing tubular column; a testing oil tube is arranged in the sieve tube; flanges are fixedly arranged at two ends of the casing; a sampling opening, an observing opening, a measuring meter mounting hole and a bottom sampling opening are formed in a wall of the casing; oil tubes of the manifold assembly are sequentially connected to one another fixedly through a tee joint; the tee joint is also connected with a check valve; the other end of the check valve is connected with a waste liquid draining tube; a union joint is fixedly arranged at the rear end of the manifold assembly; and a vacuum suction valve and a flowmeter are arranged at the rear end of each oil tube of the manifold assembly. The technology simulation testing device for the horizontal well has the advantages that the structure design is reasonable, technologies of segmented water plugging, annular chemical packing, tube external gravel packing, separated injection and the like of the horizontal well can be simulated, and the construction safety and the oil deposit protecting effect of measures of the horizontal well are improved.

Description

technical field [0001] The invention relates to an experimental device for oil drilling and production technology, in particular to a simulation test device for horizontal well technology. Background technique [0002] Horizontal wells are widely used in domestic and foreign oilfields because of their large percolation area and high production. However, under the complex completion methods and drilling trajectories of horizontal wells, technological measures such as annulus chemical isolation, water shutoff, gravel packing outside the pipe, and cementing may permanently change the downhole casing structure and oil and gas flow capacity. Mistakes will be difficult to remedy. Through the simulation test of this device, the technical performance of horizontal well measures can be fully and truly tested, which can effectively improve the technical level of horizontal well development and reduce the occurrence of engineering accidents. [0003] At present, due to the lack of tes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/08E21B47/00
CPCE21B47/00E21B49/08
Inventor 廖翰明于永生王冬梅代劲光薛军邹小平张秋红尤冬石刘建梅
Owner DRILLING TECH DEV CO LTD OF TIANJIN DAGANG OILFIELD PETROLEUM ENG INST
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