Operation well rod pipe on-line cleaning system
A technology for cleaning systems and operating wells, which is applied to cleaning equipment, wellbore/well components, earthwork drilling and production, etc., and can solve problems such as environmental pollution, difficult treatment, and many oily and solid wastes
Active Publication Date: 2018-01-19
PETROCHINA CO LTD +2
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide an on-line cleaning system for operating well rods and pipes, so as to overcome the existing technology in the process of lifting and lowering pipes and rods in oil and water wells, which produces oily dirt and solid waste, and is difficult to recycle and process. Easy to cause environmental pollution, serious environmental risks and other issues
Method used
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[0036] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0037] Such as figure 1 As shown, the present invention provides an online cleaning system for working well pipes, including:
[0038] Wellhead liquid collector, anti-leakage sealer 8 in the well and ground heating and heat preservation circulation pool;
[0039] The wellhead liquid collector is arranged on the top of the downhole tubing group, and the downhole tubing group includes a sucker rod 7, and a screen 6, a liner 5 and a casing 4 are sequentially sleeved on the outside of the sucker rod 7;
[0040] Among them, the wellhead liquid collector includes:
[0041] The main body of the liquid collector 2, a flange is embedded in the main body of the liquid collector, ...
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Abstract
The invention relates to the technical field of downhole operation processes of oil-water wells in oil production engineering, in particular to an operation well rod pipe on-line cleaning system. Theoperation well rod pipe on-line cleaning system comprises a wellhead liquid collector, a downhole anti-leakage sealer and a ground heating heat-preservation circulation pool. The wellhead liquid collector is arranged at the top end of a downhole pipe set; the anti-leakage sealer comprises an inner rubber cylinder and an outer rubber cylinder; the ground heating heat-preservation circulation pool comprises a water storage pool, a heating device, a circulation pump and a power distribution cabinet; a circulation liquid inlet in the water storage pool communicates with an opening in the outer wall of a main body of the liquid collector, and a circulation liquid outlet in the water storage pool communicates with a sleeve four-way joint; and circulation liquid enters an annulus of a lining pipeand a sleeve through the sleeve four-way joint. According to the operation well rod pipe on-line cleaning system, equipment is simple, and operation is easy; and oil stains and solid waste can be avoided during taking-out and putting-down of a rod pipe, pollution to the environment is avoided, environment-friendly risks are reduced, and thus the operation well rod pipe on-line cleaning system haslarge social significance.
Description
technical field [0001] The invention relates to the technical field of downhole operation technology of oil and water wells in oil production engineering, in particular to an online cleaning system for operating well rods and pipes. Background technique [0002] At present, the pipes and rods that are pulled out during oil and water well operations are mainly laid on the ground by laying pipes and rods. , The oil and waste liquid from stabbing and washing are all collected by non-woven fabrics, resulting in a large amount of oil and solid waste, which is difficult to recycle and deal with, which can easily cause environmental pollution and pose serious environmental risks. Contents of the invention [0003] (1) Technical problems to be solved [0004] The technical problem to be solved by the present invention is to provide an on-line cleaning system for operating well rods and pipes, so as to overcome the existing technology in the process of lifting and lowering pipes a...
Claims
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Login to View More IPC IPC(8): E21B33/08E21B37/00
Inventor 魏金辉郭士英王秀斌李山山张栋贾永付吕康廷熊汝彬魏颂东
Owner PETROCHINA CO LTD