Visual horizontal well gravel packing simulation test device
A technology of gravel packing and simulation testing, which is applied to wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve the problems such as no gravel flushing method is given, and achieve the effects of extending length, increasing test pressure and saving investment
Active Publication Date: 2016-01-06
PETROCHINA CO LTD
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Problems solved by technology
Existing gravel packing test devices for horizontal wells do not provide specific gravel flushing methods
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0021] Such as figure 1 As shown, the present invention provides a visual horizontal well gravel packing simulation test device, which includes a simulated wellbore 1 , a fluid loss pipeline 2 and a flowback pipeline 3 . Wherein: the simulated wellbore 1 has a plurality of transparent cylinders 11, two of the transparent cylinders 11 are connected by metal short cylinders 12, one end of the simulated wellbore 1 is connected with a filling joint 13, and the filling ...
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The invention provides a visual simulation test device for horizontal well gravel packing. The device comprises a simulation shaft, a filtration pipeline, and a backflow pipeline, wherein the simulation shaft is provided with a plurality of transparent shafts; each two transparent shafts are connected through a metal short tube; one end of the simulation shaft is connected with a packing connector, and the other end of the simulation shaft is provided with a plug; a screen pipe passes through the simulation shaft; the filtration pipeline is provided with a plurality of filtration branch pipelines, a plurality of filtration secondary pipelines and a filtration main pipeline; the filtration secondary pipelines are connected to the filtration main pipeline; the filtration branch pipelines are connected to each transparent shaft, and the filtration branch pipelines each transparent shaft are connected with one filtration secondary pipeline; the backflow pipeline is provided with a plurality of backflow secondary pipelines and a backflow main pipeline; the backflow secondary pipelines are connected to the backflow main pipeline, and the backflow secondary pipelines are connected with the metal short tubes. The device has the advantages that gravel packing process can be observed vividly, test pressure is increased greatly, and gravel packing rate and sand control effect of a horizontal well can be increased.
Description
technical field [0001] The invention relates to a gravel packing sand control technology test device, in particular to a visual horizontal well gravel packing simulation test device in the technical field of petroleum exploitation. Background technique [0002] In the sand control completion process of horizontal well gravel packing, since the flow direction of the sand-carrying fluid is perpendicular to the direction of gravel gravity, the filling law is fundamentally different from that of vertical wells. Especially in long horizontal wells, the gravel packing process has great technical difficulty. In order to study the law of gravel packing in horizontal wells, optimize the construction technology, improve the gravel packing rate and sand control effect in horizontal wells, different types of horizontal well gravel packing test devices have been developed at home and abroad. [0003] Existing gravel packing test devices for horizontal wells can be mainly divided into th...
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IPC IPC(8): E21B43/02
Inventor 匡韶华张建军王宝权朱富林石磊李彪赵峰陈磊
Owner PETROCHINA CO LTD