Gas lift method production fluid section plane test technique of mechanical mining horizontal well

A technology of liquid production profile and process method, which is applied in the directions of measurement, fluid production, earthwork drilling and production, etc., and can solve problems such as inability to test liquid production profile

Inactive Publication Date: 2009-04-08
DAQING OILFIELD CO LTD
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Problems solved by technology

[0004] In order to overcome the deficiency that the existing horizontal wells cannot test the liquid production profile under normal production conditions, the present invention provides a method for testing the liquid production profile of the mechanically recovered horizontal well with the gas lift method. The profile testing process can leave enough testing channels for the testing instrument, thus finally realizing the liquid production profile testing of horizontal wells under normal production conditions

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  • Gas lift method production fluid section plane test technique of mechanical mining horizontal well

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with accompanying drawing:

[0013] figure 1 It is a schematic diagram of the testing process for the fluid production profile of a mechanically produced horizontal well with the gas lift method. A method for testing the liquid production profile of a mechanically produced horizontal well by gas lift method, including ①, stopping the production of the original well, and starting the original pipe string; ②, washing the well and opening the well, using a Φ118mm scraper to open the well to the bottom of the artificial well for opening the well , washing the well with well-washing fluid or hot water also includes the following steps:

[0014] a. Run into the gas lift production string 10. There are several gas lift valves 5 inside the gas lift production string 10. The function of the gas lift valve 5 is to inject the high-pressure gas between the oil pipe and the casing into the oil pipe, and then conne...

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Abstract

The invention relates to a produced fluid profile logging technique method of a mechanical recovery horizontal well by a pneumatic lifting method, aiming at solving the problem that the existing horizontal well can not carry out profile testing in normal production state. The method is characterized in that: a. a pneumatic lifting production string (10) is put into the well, and a gas transmission line (8) and a pipe laying (9) are connected; b. a tester (7) and a traction apparatus (6) are put into the well by the pneumatic lifting production string (10); and c. a nitrogen gas generation locomotive (4) and a compressing locomotive (3) are started for carrying out oil extraction, and a cable is lifted up to carry out testing when the oil extraction production is stable. The produced fluid profile logging technique method of the mechanical recovery horizontal well by the pneumatic lifting method can leave enough testing channel for the tester, thereby finally realizing the produced fluid profile testing of the horizontal well in normal production state.

Description

Technical field: [0001] The invention relates to a method for testing a fluid production profile in the field of oil field logging, in particular to a process method for testing a fluid production profile by a gas lift method for a mechanically recovered horizontal well. Background technique: [0002] The large-scale drilling and application of horizontal wells is a bright spot in the oil industry in the late 20th century. Horizontal well technology has achieved remarkable results in the development of new oilfields and the adjustment of old oilfields. It can reduce the cost of exploration and development, and greatly increase the production capacity and recovery rate etc. PetroChina currently has nearly 3,000 horizontal wells. With the rapid increase in the number of horizontal wells year by year, the demand for testing the fluid production profile of horizontal wells is becoming increasingly urgent. Liquid production profile test data is an important technical basis for t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B49/00E21B43/00
Inventor 刘兴斌李军毛军蔡兵韩传会吴静波
Owner DAQING OILFIELD CO LTD
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