CN112282728B - Rigid casing centralizer trafficability characteristic detection device - Google Patents
Rigid casing centralizer trafficability characteristic detection device Download PDFInfo
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- CN112282728B CN112282728B CN201910665087.7A CN201910665087A CN112282728B CN 112282728 B CN112282728 B CN 112282728B CN 201910665087 A CN201910665087 A CN 201910665087A CN 112282728 B CN112282728 B CN 112282728B
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- rigid casing
- inner pipe
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
The invention provides a rigid casing centralizer trafficability characteristic detection device which comprises a support control system, an outer pipe, an inner pipe, a rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and is positioned between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe, and the first driving piece drives the inner pipe to move along the axis of the outer pipe. The passing capacity of the rigid casing centralizer under different underground working conditions can be truly simulated.
Description
Technical Field
The invention relates to the field of oil and gas field exploration, in particular to a rigid casing centralizer trafficability characteristic detection device.
Background
The casing centralizer is a common well cementation accessory, is arranged on a casing and is beneficial to running in the casing and ensuring that the casing has a certain centering degree, thereby being beneficial to improving the well cementation displacement efficiency. Casing centralizers are mainly divided into elastic casing centralizers, rigid casing centralizers and special casing centralizers, and the failure problem of the casing centralizers occurs occasionally.
Factors affecting the quality control of casing centralizers are many, including the material of the production casing centralizer, the machining process, the downhole stress condition, the installation mode of the casing centralizer, the casing running speed and the like. Therefore, when the quality problem of the casing centralizer is researched and controlled, important research is carried out according to the practical situation, the installation mode of the centralizer, the lowering speed of the casing and the like.
The method has the advantages that the elastic casing centralizer is researched a lot at home and abroad, the detection standard and the minimum performance requirement index are provided, but the quality control research on the rigid casing centralizer is less, the corresponding detection standard is not provided at home, only a recommended test mode is provided at foreign countries, and the real condition of the rigid casing centralizer under a well is not considered in the test process.
Disclosure of Invention
The invention provides a rigid casing centralizer trafficability detection device to simulate the real underground situation of a rigid casing centralizer.
The invention provides a rigid casing centralizer trafficability detection device which comprises a support control system, an outer pipe, an inner pipe, a rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and is positioned between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe, and the first driving piece drives the inner pipe to move along the axis of the outer pipe.
As an alternative mode, the invention provides a rigid casing centralizer trafficability detection device,
still including installation fixed system, installation fixed system includes trapped orbit and coupling assembling, and the trapped orbit is the tubulose, and the outer tube cup joints in the trapped orbit and is connected with the trapped orbit through coupling assembling, and the trapped orbit is connected with support control system.
As an alternative mode, the invention provides a rigid casing centralizer trafficability detection device,
the support control system comprises an angle adjuster, a front telescopic arm and a rear telescopic arm, the front telescopic arm and the rear telescopic arm are respectively connected with the fixed track through the angle adjuster, and the angle adjuster is used for adjusting the connection angles of the front telescopic arm and the rear telescopic arm with the fixed track.
As an alternative mode, the invention provides a rigid casing centralizer trafficability detection device,
still including being located the well diameter control system on the outer tube, well diameter control system includes the telescopic bulge, through the flexible distance between with regulation bulge and the inner tube of bulge.
As an alternative, the invention provides a rigid casing centralizer trafficability detection device,
the number of the convex parts is two, and the two convex parts are respectively positioned at two opposite sides of the outer pipe.
As an alternative mode, the invention provides a rigid casing centralizer trafficability detection device,
the lateral force loading system comprises a lateral mechanical movement adjuster and a second driving piece, the lateral mechanical movement adjuster is arranged through the outer pipe and can extend into the outer pipe, and the second driving piece is connected with the lateral mechanical movement adjuster and is used for applying driving force to the lateral mechanical movement adjuster, so that the lateral mechanical movement adjuster applies lateral force perpendicular to the axis of the inner pipe to the outer side wall of the inner pipe.
As an alternative, the invention provides a rigid casing centralizer trafficability detection device,
the lateral mechanical movement regulator comprises an independent arm and a cavity, the independent arm is partially positioned in the cavity and is vertical to the axis of the inner tube, and the second driving piece is used for driving the independent arm to stretch out of the cavity and abut against the outer wall of the inner tube.
As an alternative mode, the invention provides a rigid casing centralizer trafficability detection device,
still include the locking cap, the locking cap is connected at the end of inner tube, and first driving piece is connected with the locking cap.
As an alternative, the invention provides a rigid casing centralizer trafficability detection device,
still including transferring speed control system, transfer speed control system and include the connecting wire, go up the fixed pulley and fixed pulley down, go up the fixed pulley and be connected with the trapped orbit, the connecting wire is connected with the locking cap, and walks around in proper order after last fixed pulley and the fixed pulley down, is connected with first driving piece.
As an alternative, the invention provides a rigid casing centralizer trafficability detection device,
the connecting line is provided with a tension display and a speed display, and the tension display and the speed display are respectively used for displaying the tension born by the inner pipe and the moving speed of the inner pipe.
The invention provides a rigid casing centralizer trafficability detection device which comprises a support control system, an outer pipe, an inner pipe, a rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and is positioned between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe, and the first driving piece drives the inner pipe to move along the axis of the outer pipe. The device can simulate the passing capacity of the rigid casing centralizer under different underground working conditions, and has great practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rigid casing centralizer trafficability detection device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rigid casing centralizer trafficability detection device according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a rigid casing centralizer trafficability detection device according to a third embodiment of the present invention.
Description of reference numerals:
11-a support control system;
111-angle adjuster;
112-front telescopic arm;
113-rear telescopic arm;
12-an outer tube;
13-inner tube;
14-rigid casing centralizer;
15 — a first driving member;
16-a fixing member;
161-fixing a lug at the front end;
162-rear end adjustable retaining ring;
21-a support control system;
211-angle adjuster;
212 — front telescopic arm;
213-rear telescopic arm;
22-outer tube;
23-inner tube;
24-a rigid casing centralizer;
25-a first drive member;
26-a fixing piece;
261-fixing a lug at the front end;
262-rear end adjustable fixing ring;
27-installing a fixing system;
271-fixed track;
272-a connecting member;
28-a caliper control system;
281 — a projection;
31-a support control system;
311-angle adjuster;
312 — front telescopic arm;
313 — rear telescopic arm;
32-an outer tube;
33-inner tube;
34-a rigid casing centralizer;
35 — a first driving member;
36-a fixing member;
361-fixed lug at front end;
362-rear adjustable fixing ring;
37-installing a fixing system;
371 — fixed rail;
372-a connection assembly;
38-a caliper control system;
381-a projection;
39-lateral force loading system;
391-lateral mechanical movement adjuster;
392 — a second driving member;
393-connecting lines;
394 — upper fixed pulley;
395-lower fixed pulley;
396-tension display;
397 — speed display;
310-fixing the cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are illustrative of some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The terms "first," "second," "third" and/or "fourth," etc., in the description and claims of the invention and in the preceding drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The casing centralizer is a device which is arranged on a casing string to center the casing string in a borehole, is a common well cementation accessory, is arranged on the casing string to be beneficial to running in of the casing string, and is further beneficial to improving the well cementation displacement efficiency. The casing centralizer has the characteristics of simple structure, convenience in use, long service life and relatively low cost. However, the problem of failure of the casing centralizer occurs all the time, 40 casing centralizers are put in a victory oil field, only one casing centralizer is left after the casing is started, and similar problems also occur in the West Sak oil field in the United states. The direct economic loss brought to the well cementation construction by the failure of the casing centralizer is about 1000 ten thousand per year, the well integrity is severely restricted, and the development and production of oil fields are hindered. Therefore, controlling casing centralizer quality is a common concern for cementing engineers in the exploration and development of oil and gas fields, and is an important element of the world's oil world that is constantly engaged in the fight.
The conventional casing centralizer is mainly divided into an elastic casing centralizer, a rigid casing centralizer and a special casing centralizer, wherein the elastic casing centralizer is divided into a single-bow spring elastic centralizer, a double-bow spring elastic centralizer and an integral elastic centralizer; the rigid casing centralizer is divided into a steel rigid casing centralizer, an aluminum alloy rigid casing centralizer and the like according to the material; the special casing centralizer is divided into a welding type centralizer and a carbon fiber centralizer. Factors affecting the quality control of casing centralizers are many, including the material of the production casing centralizer, the machining process, the downhole stress condition, the installation mode of the casing centralizer, the casing running speed and the like. Therefore, when the quality problem of the casing centralizer is researched and controlled, important research is carried out according to the practical situation, the installation mode of the centralizer, the lowering speed of the casing and the like.
The method has the advantages that the elastic casing centralizer is researched a lot at home and abroad, the detection standard and the minimum performance requirement index are provided, but the quality control research of the rigid casing centralizer is less, the detection standard does not exist at home, some recommended test modes are provided at home and abroad, and the underground real condition of the rigid casing centralizer is not considered in the test process. Therefore, the device for evaluating the rigid casing centralizer indoors has important significance in truly reflecting the underground stress condition of the casing centralizer, and meets the requirements of safe and economic development of oil and gas field exploration and development.
The embodiment of the invention will be described in detail through different embodiments for a rigid casing centralizer trafficability detection device:
example one
Fig. 1 is a schematic structural diagram of a rigid casing centralizer trafficability detection device according to an embodiment of the present invention, and as shown in fig. 1, the embodiment of the present invention provides a rigid casing centralizer trafficability detection device including a support control system 11, an outer pipe 12, an inner pipe 13, a rigid casing centralizer 14, and a first driving member 15, where the support control system 11 is configured to support the outer pipe 12, the inner pipe 13 is sleeved in the outer pipe 12, the rigid casing centralizer 14 is connected to an outer side wall of the inner pipe 13, the rigid casing centralizer 14 is located between the inner pipe 13 and the outer pipe 12, the first driving member 15 is connected to the inner pipe 13, and the first driving member 15 drives the inner pipe 13 to move along an axis of the outer pipe 12.
The outer pipe 12 simulates a borehole, the inner pipe 13 simulates a casing string, the rigid casing centralizer 14 is sleeved on the outer wall of the inner pipe 13, the underground rigid casing centralizer 14 can be really simulated to be sleeved on the casing string, and the rigid casing centralizer 14 is located between the inner pipe 13 and the outer pipe 12 and can simulate the real condition of the rigid casing centralizer 14 in the underground.
Optionally, a rigid casing centralizer 14 is secured to the outer sidewall of the inner pipe 13 by fasteners 16.
Optionally, the fixing element 16 may be a front end fixing protrusion 161 and a rear end adjustable fixing ring 162, and the installation manner of the rigid casing centralizer 14 on the casing may be simulated through the front end fixing protrusion 161 and the rear end adjustable fixing ring 162, so that the passing detection of the rigid casing centralizer is more practical.
Alternatively, in this embodiment, the angle of the outer pipe 12 can be changed by the support control system 11 to simulate different well deviations.
Optionally, the support control system 11 includes an angle adjuster 111, a front telescopic arm 112 and a rear telescopic arm 113, the front telescopic arm 112 and the rear telescopic arm 113 are connected with the outer tube 12 through the angle adjuster 111, the angle adjuster 111 is used for adjusting the connection angle between the front telescopic arm 112 and the rear telescopic arm 113 and the outer tube 12, the inclination angle of the outer tube 12 can be changed through the cooperation of the angle adjuster 111, the front telescopic arm 112 and the rear telescopic arm 113, thereby simulating the passing capacity of the rigid casing centralizer under different well inclinations, and the passing capacity of the rigid casing centralizer when the maximum well inclination is 60 ° can be simulated through the height adjustment of the front telescopic arm 112 and the rear telescopic arm 113.
Further, the first driving member 15 is connected with the inner pipe 13, the first driving member 15 drives the inner pipe 13 to move along the axis of the outer pipe 12, and the driving of the first driving member 15 can truly simulate the motion situation of the rigid casing centralizer 14 in the well, and can more truly reflect the real situation of the rigid casing centralizer in the well.
The device for detecting the trafficability of the rigid casing centralizer comprises a support control system, an outer pipe, an inner pipe, the rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and located between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe, and the first driving piece drives the inner pipe to move along the axis of the outer pipe. The real condition of the rigid casing centralizer in the well can be truly simulated, and the method has great practicability.
Example two
Fig. 2 is a schematic structural diagram of a rigid casing centralizer trafficability detection device according to a second embodiment of the present invention, and as shown in fig. 2, the second embodiment of the present invention provides a rigid casing centralizer trafficability detection device, which includes a support control system 21, an outer pipe 22, an inner pipe 23, a rigid casing centralizer 24, and a first driving member 25, where the support control system 21 is configured to support the outer pipe 22, the inner pipe 23 is sleeved in the outer pipe 22, the rigid casing centralizer 24 is connected to an outer side wall of the inner pipe 23, the rigid casing centralizer 24 is located between the inner pipe 23 and the outer pipe 22, the first driving member 25 is connected to the inner pipe 23, and the first driving member 25 drives the inner pipe 23 to move along an axis of the outer pipe 22.
The outer pipe 22 simulates a borehole, the inner pipe 23 simulates a casing string, the rigid casing centralizer 24 is sleeved on the outer wall of the inner pipe 23, the underground rigid casing centralizer 24 can be really simulated to be sleeved on the casing string, the rigid casing centralizer 24 is positioned between the inner pipe 23 and the outer pipe 22, and the underground rigid casing centralizer 24 can be simulated as the rigid casing centralizer 24 is positioned between the casing string and the borehole.
Optionally, a rigid casing centralizer 24 is secured to the outer sidewall of the inner pipe by fasteners 26.
Optionally, the fixing element 26 may be a front end fixing protrusion 261 and a rear end adjustable fixing ring 262, and the installation manner of the rigid casing centralizer 24 on the casing may be simulated through the front end fixing protrusion 261 and the rear end adjustable fixing ring 262, so that the passing detection of the rigid casing centralizer is more practical.
Alternatively, in this embodiment, the angle of the outer tube 22 can be changed by the prop control system 21 to simulate different well deviations.
Optionally, the support control system 21 includes an angle adjuster 211, a front telescopic arm 212 and a rear telescopic arm 213, the front telescopic arm 212 and the rear telescopic arm 213 are connected with the outer tube 22 through the angle adjuster 211, the angle adjuster 211 is configured to adjust a connection angle between the front telescopic arm 212 and the rear telescopic arm 213 and the outer tube 22, an inclination angle of the outer tube 22 can be changed through cooperation of the angle adjuster 211, the front telescopic arm 212 and the rear telescopic arm 213, so as to simulate a passing capability of the rigid casing centralizer under different well inclinations, and the passing capability of the rigid casing centralizer can be simulated when the maximum well inclination is 60 ° through height adjustment of the front telescopic arm 212 and the rear telescopic arm 213.
Further, the first driving member 25 is connected with the inner pipe 23, the first driving member 25 drives the inner pipe 23 to move along the axis of the outer pipe 22, and the driving of the first driving member 25 can truly simulate the motion situation of the rigid casing centralizer 24 in the well, and can more truly reflect the real situation of the rigid casing centralizer in the well.
Optionally, the present embodiment further includes an installation fixing system 27, where the installation fixing system 27 includes a fixing rail 271 and a connecting assembly 272, the fixing rail 271 is tubular, the outer tube 22 is sleeved in the fixing rail 271 and connected to the fixing rail 271 through the connecting assembly 272, and the fixing rail 271 is connected to the support control system 21.
Optionally, the connecting assembly 272 is a plurality of fixing rings and a plurality of fixing pins, and the plurality of fixing rings and the plurality of fixing pins are used for changing the distance between the fixing rail 271 and the outer tube 22, and can be used for installing outer tubes 22 with different sizes.
Optionally, in this embodiment, the number of the fixing rings and the number of the fixing pins are three, and the three fixing rings and the plurality of fixing pins are uniformly disposed on the inner wall of the fixing track 271.
Optionally, the rigid casing centralizer trafficability characteristic detection device provided by the second embodiment further includes a hole diameter control system 28 located on the outer tube 22, the hole diameter control system 28 includes a telescopic protrusion 281, and the protrusion 281 is telescopic to adjust a distance between the protrusion 281 and the inner tube 23, so that different hole diameters can be provided, and simulation of three working conditions, namely an open hole condition, a key slot condition and a step condition, is realized.
The number of the protruding portions 281 is two, and the two protruding portions 281 are respectively located at two opposite sides of the outer tube 22, and three different working conditions in the well can be simulated by adjusting the two protruding portions 281.
Specifically, the distance between the two protruding parts 281 is adjusted to be the same as the inner diameter of the outer pipe 22, and meanwhile, the first driving part 25 is started to pull the inner pipe 23 to move, so that the casing running speed is simulated, and the passing capacity of the rigid casing centralizer under the condition of simulating the underground open hole is detected.
One of the projections 281 is adjusted so that the spacing between the two projections 281 reaches the desired hole diameter, and then the first drive member 25 is activated to simulate casing running speed movement, thereby simulating the ability to pass a rigid casing centralizer installed in a keyway test.
The two projections 281 are adjusted so that the spacing between the two projections 281 stops and fixes after the desired step size is reached, and then the first drive member 25 is activated to simulate casing running speed movement, thereby enabling the ability to simulate passage of a rigid casing centralizer installed in a step situation.
The device for detecting the trafficability of the rigid casing centralizer comprises a support control system, an outer pipe, an inner pipe, the rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and located between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe, and the first driving piece drives the inner pipe to move along the axis of the outer pipe. The real condition of the rigid casing centralizer in the well can be simulated, and the method has great practicability.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a rigid casing centralizer trafficability detection device according to a third embodiment of the present invention, and as shown in fig. 3, the third embodiment of the present invention provides a rigid casing centralizer trafficability detection device, which includes a support control system 31, an outer pipe 32, an inner pipe 33, a rigid casing centralizer 34, and a first driving member 35, where the support control system 31 is configured to support the outer pipe 32, the inner pipe 33 is sleeved in the outer pipe 32, the rigid casing centralizer 34 is connected to an outer side wall of the inner pipe 33, the rigid casing centralizer 34 is located between the inner pipe 33 and the outer pipe 32, the first driving member 35 is connected to the inner pipe 33, and the first driving member 35 drives the inner pipe 33 to move along an axis of the outer pipe 32.
The outer pipe 32 simulates a borehole, the inner pipe 33 simulates a casing string, the rigid casing centralizer 34 is sleeved on the outer wall of the inner pipe 33, the underground rigid casing centralizer 34 can be truly simulated to be sleeved on the casing string, the rigid casing centralizer 34 is positioned between the inner pipe 33 and the outer pipe 32, and equivalently, the rigid casing centralizer 34 is positioned between the casing string and the borehole, and the underground real situation of the rigid casing centralizer 34 can be simulated.
Optionally, a rigid casing centralizer 34 is secured to the outer sidewall of the inner tube 33 by fasteners 36.
Optionally, the fixing element 36 may be a front end fixing protrusion 361 and a rear end adjustable fixing ring 362, and the installation manner of the rigid casing centralizer 34 on the casing may be simulated by the front end fixing protrusion 361 and the rear end adjustable fixing ring 362, so that the passing detection of the rigid casing centralizer is more practical.
Alternatively, in this embodiment, the angle of the outer tube 32 may be changed by the support control system 31 to simulate different well deviations.
Optionally, the support control system 31 includes an angle adjuster 311, a front telescopic arm 312 and a rear telescopic arm 313, the front telescopic arm 312 and the rear telescopic arm 313 are connected with the outer pipe 32 through the angle adjuster 311, the angle adjuster 311 is configured to adjust a connection angle between the front telescopic arm 312 and the outer pipe 32 and between the rear telescopic arm 313 and the outer pipe 32, an inclination angle of the outer pipe 32 can be changed through cooperation of the angle adjuster 311, the front telescopic arm 312 and the rear telescopic arm 313, thereby simulating a passing capacity of the rigid casing centralizer under different well inclinations, and a passing capacity of the rigid casing centralizer when the maximum well inclination is 60 ° can be simulated through height adjustment of the front telescopic arm 312 and the rear telescopic arm 313.
Further, the first driving member 35 is connected with the inner pipe 33, the first driving member 35 drives the inner pipe 33 to move along the axis of the outer pipe 32, the movement of the rigid casing centralizer 34 in the well can be simulated really by the driving of the first driving member 35, and the passing capacity of the casing centralizer 34 at different casing running speeds can be simulated by different driving forces.
Optionally, the present embodiment further includes an installation fixing system 37, the installation fixing system 37 includes a fixing rail 371 and a connecting assembly 372, the fixing rail 371 is tubular, the outer tube 32 is sleeved in the fixing rail 371 and connected to the fixing rail 371 through the connecting assembly 372, and the fixing rail 371 is connected to the support control system 31.
Optionally, the connection assembly 372 is a plurality of fixing rings and a plurality of fixing pins for changing the spacing between the fixing rail 371 and the outer tube 32 for mounting different sizes of outer tubes 32.
Alternatively, in this embodiment, there are three fixing rings and three fixing pins, and the three fixing rings and the three fixing pins are uniformly disposed on the inner wall of the fixing rail 371.
Optionally, the rigid casing centralizer trafficability characteristic detection device provided by this embodiment further includes a hole diameter control system 38 located on the outer tube 32, and the hole diameter control system 38 includes a telescopic protrusion 381, and the distance between the protrusion 381 and the inner tube 33 is adjusted by the extension and contraction of the protrusion 381, so that different hole diameters can be provided, and the simulation of three working conditions, namely an open hole condition, a key slot condition and a step condition, is realized.
The number of the protruding portions 381 is two, the two protruding portions 381 are respectively located on two opposite sides of the outer pipe 32, and three different working conditions in the well can be simulated through adjustment of the two protruding portions 381.
Specifically, the distance between the two protruding portions 381 is adjusted to be the same as the inner diameter of the outer pipe 32, and meanwhile, the first driving piece 35 is started to pull the inner pipe 33 to move, so that the casing running speed is simulated, and therefore the passing capacity of the rigid casing centralizer under the condition of simulating the underground open hole is detected.
One of the projections 381 is adjusted until the distance between the two projections 381 reaches the desired hole diameter, and then the first drive member 35 is actuated to simulate casing running speed movement, thereby simulating the ability of a rigid casing centralizer installed in the keyway test situation.
The two projections 381 are adjusted so that the distance between the two projections 381 stops and is fixed after the distance reaches the required step size, then the first driving member 35 is started to simulate casing running speed movement, and therefore the passing capacity of the rigid casing centralizer installed under the condition of simulating the steps can be achieved.
The rigid casing centralizer passability detection apparatus provided by the present embodiment further includes a lateral force loading system 39, the lateral force loading system 39 includes a lateral mechanical movement adjuster 391 and a second driving member 392, the lateral mechanical movement adjuster 391 is disposed through the outer tube 32 and is extendable into the outer tube 32, and the second driving member 392 is connected to the lateral mechanical movement adjuster 391 and is configured to apply a driving force to the lateral mechanical movement adjuster 391, so that the lateral mechanical movement adjuster 391 applies a lateral force perpendicular to the axis of the inner tube 33 to the outer side wall of the inner tube 33.
The rigid casing centralizer trafficability testing device provided by the embodiment of the invention can simulate the capacity of a rigid centralizer to pass through an open hole, a key slot and a step well section under different lateral loads.
Specifically, after the rigid casing centralizer 34 is mounted on the inner pipe 33, a side load is applied to the inner pipe 33 by the side force loading system 39, an initial pressure is provided by the second driving member 392 during the application of the side load, and then the lateral mechanical movement adjuster 391 is precisely controlled by the 200MPa pump pressure pressurizing hand valve, and the lateral mechanical movement adjuster 391 applies a side force to the inner pipe 33, thereby loading the side load.
On the basis, the passing capacity of the rigid casing centralizer under the conditions of an open hole, a key groove and a step can be simulated.
Specifically, when the ability of the rigid casing centralizer to pass through a downhole open hole section under different lateral loads is simulated, the two protrusions 381 are adjusted to enable the distance between the two protrusions 381 to be the same as the inner diameter of the outer pipe 32, meanwhile, the first driving piece 35 is started to pull the inner pipe 33 to move, the casing running speed is simulated, and therefore the passing ability of the rigid casing centralizer under the downhole open hole condition is simulated.
One of the projections 381 is adjusted until the distance between the two projections 381 reaches the desired hole diameter, and then the first drive member 35 is actuated to simulate casing running speed movement, thereby simulating the ability of a rigid casing centralizer installed in the keyway test situation.
The two projections 381 are adjusted so that the distance between the two projections 381 stops and is fixed after the distance reaches the required step size, then the first driving member 35 is started to simulate casing running speed movement, and therefore the passing capacity of the rigid casing centralizer installed under the condition of simulating the steps can be achieved.
Alternatively, the second driver 392 may be a 200MPa independent electrically-powered hydraulic pump.
Optionally, a 200MPa hydraulic pump pressure indicator, a lateral pressure indicator, a 200MPa pump pressure-increasing hand valve and a 200MPa pump pressure-decreasing hand valve are further disposed between the second driving member 392 and the lateral mechanical movement adjuster 391. During the process of applying the side load, initial pressure is provided through a 200MPa independent electric hydraulic pump and a 200MPa hydraulic pump pressure display, then a 200MPa pump pressure hand valve and a side pressure display are used for accurately controlling a side mechanical movement regulator 391, and the control accuracy can reach 0.1MPa.
Optionally, the lateral mechanical movement adjuster 391 includes a separate arm and a cavity, the separate arm is partially located in the cavity, the separate arm is perpendicular to the axis of the inner tube 33, the second driving member 392 is configured to drive the separate arm to extend out of the cavity and abut against the outer wall of the inner tube 33, and the lateral mechanical movement adjuster 391 applies a lateral force to the inner tube 33 through the separate arm.
The device for detecting the passing ability of the rigid casing centralizer provided by the embodiment further comprises a fixing cap 310, the fixing cap 310 is connected to the end of the inner pipe 33, and the first driving member 35 is connected with the fixing cap 310.
Optionally, the fixing cap 310 is connected with the end of the inner tube 33 through a thread, when a passing test is performed, the fixing cap 310 may be connected with the first driving member 35 first, and then the fixing cap 310 is screwed on the end of the inner tube 33, so that the problem of installing and connecting the first driving member 35 after the inner tube 33 is installed in the outer tube 32 is solved. When the rigid casing centralizer is used, the rigid casing centralizer 34 is installed on the inner pipe 33, the first driving piece 35 is connected with the fixing cap 310, and the fixing cap 310 is screwed with the inner pipe 33, so that the convenience of operation is improved.
Optionally, the rigid casing centralizer trafficability testing device provided by this embodiment further includes a lowering speed control system, the lowering speed control system includes a connection line 393, an upper fixed pulley 394 and a lower fixed pulley 395, the upper fixed pulley 394 is connected with the fixed track 371, the connection line 393 is connected with the fixed cap 310, and after passing through the upper fixed pulley 394 and the lower fixed pulley 395 in turn, is connected with the first driving member 35.
By changing the driving force of the first driving member 35, the driving force is directly transmitted to the fixing cap 310 through the connecting line 393, and the inner tube 33 is moved by the fixing cap 310.
Optionally, the connecting wire 393 is a steel wire, one end of the steel wire is connected with the fixing cap 310, and the other end of the steel wire is connected with the first driving member 35.
Optionally, the connecting line 393 is provided with a tension display 396 and a speed display 397, and the tension display 396 and the speed display 397 are respectively used for displaying the tension borne by the inner pipe 33 and the moving speed of the inner pipe 33, so that the underground stress and motion conditions of the rigid casing centralizer can be monitored in real time, and data support is provided for a rigid casing centralizer trafficability test.
The rigid casing centralizer trafficability characteristic detection device provided by the third embodiment can realize the following functions: (1) the ability of the rigid casing centralizer to pass through an open hole, a key slot and a step well section can be simulated; (2) the capability of the rigid casing centralizer to pass through an underground key groove, a step and an open hole section under different lateral loads can be simulated; (3) the passing capacity of the rigid casing centralizer under different well deviation conditions can be simulated; (4) the passing capacity of the rigid casing centralizer at different casing running speeds can be simulated.
The device for detecting the trafficability of the rigid casing centralizer comprises a support control system, an outer pipe, an inner pipe, the rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and located between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe, and the first driving piece drives the inner pipe to move along the axis of the outer pipe. The passing capacity of the rigid casing centralizer under different underground working conditions can be truly simulated.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (8)
1. The device for detecting the trafficability of the rigid casing centralizer is characterized by comprising a support control system, an outer pipe, an inner pipe, the rigid casing centralizer and a first driving piece, wherein the support control system is used for supporting the outer pipe, the inner pipe is sleeved in the outer pipe, the rigid casing centralizer is connected to the outer side wall of the inner pipe and located between the inner pipe and the outer pipe, the first driving piece is connected with the inner pipe and drives the inner pipe to move along the axis of the outer pipe;
the well diameter control system comprises a telescopic protruding part, and the distance between the protruding part and the inner pipe is adjusted through the expansion and contraction of the protruding part;
the lateral force loading system comprises a lateral mechanical movement adjuster and a second driving piece, the lateral mechanical movement adjuster penetrates through the outer pipe and can extend into the outer pipe, and the second driving piece is connected with the lateral mechanical movement adjuster and is used for applying driving force to the lateral mechanical movement adjuster, so that the lateral mechanical movement adjuster applies lateral force perpendicular to the axis of the inner pipe to the outer side wall of the inner pipe.
2. The detection device according to claim 1, further comprising an installation fixing system, wherein the installation fixing system comprises a fixing rail and a connecting assembly, the fixing rail is tubular, the outer pipe is sleeved in the fixing rail and connected with the fixing rail through the connecting assembly, and the fixing rail is connected with the support control system.
3. The detection device according to claim 2, wherein the support control system comprises an angle adjuster, a front telescopic arm and a rear telescopic arm, the front telescopic arm and the rear telescopic arm are respectively connected with the fixed track through the angle adjuster, and the angle adjuster is used for adjusting the connection angle of the front telescopic arm and the rear telescopic arm with the fixed track.
4. The probe apparatus of claim 1, wherein the number of the projections is two, and the two projections are respectively located on opposite sides of the outer tube.
5. The sensing device of claim 1, wherein the lateral mechanical movement actuator comprises a separate arm and a cavity, the separate arm being positioned within the cavity, the separate arm being perpendicular to the inner tube axis, the second actuator being configured to drive the separate arm to extend out of the cavity and against the outer wall of the inner tube.
6. The sensing device of claim 2, further comprising a retaining cap coupled to an end of the inner tube, wherein the first actuating member is coupled to the retaining cap.
7. The detecting device according to claim 6, further comprising a lowering speed control system, wherein the lowering speed control system comprises a connecting line, an upper fixed pulley and a lower fixed pulley, the upper fixed pulley is connected with the fixed rail, the connecting line is connected with the fixed cap, and the connecting line is connected with the first driving member after passing through the upper fixed pulley and the lower fixed pulley in sequence.
8. The detecting device for detecting the rotation of a motor rotor according to the claim 7, wherein the connecting line is provided with a tension indicator and a speed indicator, and the tension indicator and the speed indicator are respectively used for indicating the tension born by the inner tube and the moving speed of the inner tube.
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