Abutting and pressing stable type sucker rod centralizer
A technology for sucker rods and centralizers, which is applied in the direction of drill pipes, drilling equipment, and earthwork drilling and production, and can solve problems such as the inability to adjust the radial centralization distance, the adjustment of different centralization distances, poor stability of the sucker rod, etc., and achieve increased Anti-slip and stable performance, radial righting width reduction, and the effect of improving smoothness
Inactive Publication Date: 2021-08-31
JIANGSU LIKE GASOLINEEUM MACHINERY
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Problems solved by technology
[0002] At present, pumping units are widely used in oil fields. They are connected by sucker rods and drive plungers located deep in oil wells to pump crude oil out of the ground. When in use, multi-section sucker rods are connected through connectors. The oil rod is a slender rod, and the stability of the sucker rod is poor during the reciprocating pumping movement. For this reason, in order to increase the telescopic stability of the sucker rod and ensure the axial position of the sucker rod in the well, generally the sucker rod The centralizer is installed on the top to improve the movement stability of the sucker rod. The existing centralizer generally installs a plurality of axially distributed rollers with different angles on the centralizer body for centralization, but the centralizer with the above structure cannot adjust the rollers. Radial position, so the spacing of different centralizers cannot be adjusted according to the radial size of different deep wells, which makes the use of the centralizer inflexible, and the radial centralization spacing cannot be adjusted according to the actual situation. In addition, the stability of the structure needs to be ensured
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[0022] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0023] Such as Figures 1 to 6 As shown, a pressure-resisting and stable sucker rod centralizer includes an annular cylinder 1, a roller mechanism 3, a radial drive assembly 2, and a pressure-resisting mechanism 4; a plurality of Passing groove 11; a roller mechanism 3 is respectively installed in the passing groove 11; the radial driving assembly 2 includes a positioning threaded cylinder 21, a driving screw 22, a driving ring 23, a driven swash plate 24, and a radial floating block 25. Radial floating rod 26, pressing elastic body 27; a positioning thread cylinder 21 is installed inside one end of the annular cylinder 1; a radial floating rod 26 is respectively installed on the inner side of the roller mechanism 3; the radial floating The rod 26 radially slides through the connecting groove 11 and then extends to the inside of the annular cy...
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The invention discloses an abutting and pressing stable type sucker rod centralizer. The sucker rod centralizer comprises an abutting and pressing mechanism. According to the butting and pressing stable type sucker rod centralizer, the abutting and pressing mechanism is additionally arranged, the outer ends of abutting and pressing columns are connected with abutting and pressing barrels in a sleeving mode, pressing elastic bodies are installed inside the abutting and pressing barrels, the pressing elastic bodies press the abutting and pressing barrels towards the outside, then abutting and pressing blocks on the outer sides of the abutting and pressing barrels are connected to the inner wall of an annular cylinder in an pressing mode, and the abutting and pressing blocks are anti-skid rubber blocks, so that the anti-skidding and stable performance of a driving screw rod is improved.
Description
technical field [0001] The invention relates to a pressure-resistant and stable sucker rod centralizer. Background technique [0002] At present, pumping units are widely used in oil fields. They are all connected by sucker rods and drive the plunger located deep in the oil well to pump crude oil out of the ground. When in use, multi-section sucker rods are connected through connectors. The oil rod is a slender rod, and the stability of the sucker rod is poor during the reciprocating pumping movement. For this reason, in order to increase the telescopic stability of the sucker rod and ensure the axial position of the sucker rod in the well, generally the sucker rod The centralizer is installed on the top to improve the movement stability of the sucker rod. The existing centralizer generally installs a plurality of axially distributed rollers with different angles on the centralizer body for centralization, but the centralizer with the above structure cannot adjust the roller...
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IPC IPC(8): E21B17/10
CPCE21B17/1078E21B17/1042E21B17/1007
Inventor 王昌彬吴小娟
Owner JIANGSU LIKE GASOLINEEUM MACHINERY