CN113153204B - Integral casing head of oil well drilling and production equipment - Google Patents
Integral casing head of oil well drilling and production equipment Download PDFInfo
- Publication number
- CN113153204B CN113153204B CN202110529133.8A CN202110529133A CN113153204B CN 113153204 B CN113153204 B CN 113153204B CN 202110529133 A CN202110529133 A CN 202110529133A CN 113153204 B CN113153204 B CN 113153204B
- Authority
- CN
- China
- Prior art keywords
- slider
- sliding block
- sleeve
- casing
- well drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 239000003129 oil well Substances 0.000 title claims abstract description 17
- 241000191291 Abies alba Species 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 244000309464 bull Species 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
- E21B33/04—Casing heads; Suspending casings or tubings in well heads
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the technical field of oil exploitation equipment, and provides an integral casing head of oil well drilling and exploitation equipment, which comprises a shell, an oil pipe hanger and a holding assembly, wherein the shell is used for being connected with a Christmas tree, the oil pipe hanger is arranged in the shell, and the holding assembly is used for preventing a casing from moving up and down; the clasping component comprises a connecting pipe, a first sliding block, a second sliding block, a connecting rod and a rotating rod; the connecting pipe is sleeved outside the sleeve; the first sliding block and the second sliding block are arranged on the shell in a sliding mode, and the first sliding block and the second sliding block move synchronously relative to the sleeve and are opposite in direction; two ends of the connecting rod are respectively connected with the first sliding block and the connecting pipe; the rotating rod is rotatably connected with the shell, and the first sliding block moves in the reverse direction by pushing the second sliding block to move by the aid of the rotating rod. Through the technical scheme, the problems of high oil production cost and low oil production efficiency caused by the fact that the slip type casing hanger cannot hold the casing tightly in the related art are solved.
Description
Technical Field
The invention relates to the technical field of oil exploitation equipment, in particular to an integral casing head of oil well drilling and production equipment.
Background
A complete set of wellhead device and Christmas tree is mainly composed of a casing head, a tubing head and a Christmas tree. When drilling, the blowout preventer is arranged on the upper part of the casing head to form a drilling wellhead device; when the well is completed, the Christmas tree is arranged above the tubing head, and a Christmas wellhead device is formed. The casing head is used for connecting a surface casing, suspending a plurality of layers of casings in a well and sealing an annular space between the casings; the oil pipe head is mainly used for hanging an oil pipe and sealing an annular space between the oil pipe and the sleeve; the main functions of the christmas tree are to open and close, control and direct the oil flow and seal the oil pipe. The whole device needs to meet the special operations of oil testing and well completion, such as well drilling, well cementing, downhole pressure measurement, well washing, fracturing, acidification and the like.
At present, the casing head divide into integral and split type, integral casing head can use slip formula casing hanger usually, but in slip formula casing hanger's daily use, because slip formula casing hanger can not be fine hold the sleeve pipe tightly, and lead to the sleeve pipe to appear along the ascending drunkenness from top to bottom of self axis direction in the in-process of oil transportation unavoidably, because the upper and lower drunkenness of sleeve pipe, can arouse whole casing head leakproofness variation, and still there is the damage to the sleeve pipe, the oil production cost has not only been improved like this, still can reduce the efficiency of oil production.
Disclosure of Invention
The invention provides an integral casing head of oil well drilling and production equipment, which solves the problems of high oil production cost and low oil production efficiency caused by the fact that a slip type casing hanger cannot hold a casing in the related art.
The technical scheme of the invention is as follows: the integral casing head of the oil well drilling and production equipment comprises a shell and an oil pipe hanger, wherein the shell is used for being connected with a Christmas tree, the oil pipe hanger is arranged in the shell, and the integral casing head further comprises a holding assembly used for preventing a casing from moving up and down; the hug closely subassembly includes:
the connecting pipe is sleeved outside the sleeve and synchronously moves with the sleeve;
the first sliding blocks are arranged on the shell in a sliding mode, the first sliding blocks slide along the radial direction of the sleeve to be away from or close to the sleeve, the first sliding blocks are multiple and circumferentially surround the sleeve
The second sliding blocks are arranged on the shell in a sliding mode and slide along the radial direction of the sleeve to be far away from or close to the sleeve, the number of the second sliding blocks is the same as that of the first sliding blocks, the second sliding blocks are arranged around the sleeve in a circumferential mode, and the first sliding blocks and the second sliding blocks move synchronously relative to the sleeve and are opposite in direction;
the connecting rods are arranged in a one-to-one correspondence manner with the first sliding blocks, and two ends of each connecting rod are respectively connected with the first sliding blocks and the connecting pipe; and
the middle parts of the rotating rods are rotatably connected with the shell, two ends of each rotating rod are respectively connected with the first sliding block and the adjacent second sliding block in a sliding mode, and the end parts of the rotating rods respectively penetrate through the first sliding blocks and the second sliding blocks; the motion of the first sliding block pushes the second sliding block to move reversely by the rotating rod.
As a further technical scheme, the first slider is provided with a first through hole, the second slider is provided with a second through hole, two ends of the connecting rod are provided with protrusions, and the two protrusions respectively penetrate through the first through hole and the second through hole.
As a further technical scheme, still including being used for hugging closely sheathed tube push pedal, the push pedal is located respectively first slider with what the second slider pushed away the top, the push pedal orientation sheathed tube face is the arcwall face.
As a further technical scheme, the device also comprises air bags, wherein the air bags correspond to the push plates one by one, the air bags are arranged on the push plates, and the push plates are in contact with the sleeve by means of the air bags.
As a further technical scheme, the air guide device further comprises a plurality of air guide tubes, and the air guide tubes are communicated with the air bags correspondingly arranged on the first sliding block and the second sliding block.
As a further technical scheme, the number of the first sliding blocks, the number of the second sliding blocks, the number of the connecting rods, the number of the rotating rods and the number of the air guide tubes are two, and the number of the push plates and the number of the air bags are four.
As a further technical scheme, the cross section of the air bag is larger than that of the push plate.
As a further technical scheme, anti-skidding salient points are arranged on the contact surface of the air bag and the sleeve.
As a further technical scheme, the first sliding blocks and the second sliding blocks are arranged in a staggered mode.
As a further technical scheme, the connecting pipe is provided with a first rotating hole, the first sliding block is provided with a second rotating hole, two ends of the connecting rod are both provided with hinged shafts, and the connecting rod is hinged with the connecting pipe by means of the hinged shafts penetrating into the first rotating hole and the second rotating hole.
The working principle and the beneficial effects of the invention are as follows: compared with the prior art, the casing is connected with an external Christmas tree, the oil pipe hanger is arranged in the casing, the casing is arranged in the oil pipe hanger in a penetrating way, the oil pipe hanger is used for holding the casing tightly, the holding component is also arranged in the casing and used for assisting the oil pipe hanger to fix the casing and avoiding the situation that the casing moves up and down, the holding component comprises a connecting pipe, a first sliding block, a second sliding block, a connecting rod and a rotating rod, the casing is arranged in the connecting pipe in a penetrating way, the connecting pipe and the casing move synchronously, the first sliding block and the second sliding block are both arranged on the casing in a sliding way, the sliding directions of the first sliding block and the second sliding block are the same as the radial direction of the casing, the number of the first sliding blocks is multiple, the number of the second sliding blocks is the same as that of the first sliding blocks, the first sliding block and the second sliding block are both distributed around the casing in a circumferential way, the number of the connecting rod is the same as that of the first sliding blocks, and the connecting rods are arranged in one-to-one correspondence with the first sliding blocks, the two ends of the connecting rod are respectively hinged with the first sliding block and the connecting pipe, the middle part of the rotating rod is rotatably connected with the inner wall of the shell, and the rotating axis of the rotating rod is parallel to the axis of the sleeve, namely the rotating axis of the rotating rod is vertical to the moving direction space of the first sliding block or the second sliding block, the two ends of the rotating rod respectively penetrate through the first sliding block and the adjacent second sliding block, namely the two ends of the rotating rod cannot be simultaneously connected with the two first sliding blocks or the two second sliding blocks; the end part of the rotating rod and the first sliding block or the second sliding block rotate relatively and move relatively, and the first sliding block realizes synchronous movement in the opposite direction by means of the rotating rod and the corresponding second sliding block; the end parts of the first sliding block and the second sliding block can be in contact with the sleeve to clamp the sleeve tightly, and the up-and-down movement of the sleeve is avoided.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the joint of a casing head, a pipeline and a pressure gauge provided by the present invention;
FIG. 2 is a cross-sectional view of the engagement of a hugging assembly and a sleeve according to the present invention;
FIG. 3 is a schematic structural diagram of the joint of the first slider, the second slider, the rotating rod and the connecting pipe provided by the invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is an exploded view of the junction of the rotating rod, connecting tube and first slider in accordance with the present invention;
in the figure:
1. the oil pipe hanger comprises a shell, 2, an oil pipe hanger, 3, a holding component, 4, a connecting pipe, 5, a sleeve, 6, a first sliding block, 7, a second sliding block, 8, a connecting rod, 9, a rotating rod, 10, a first through hole, 11, a second through hole, 12, a protrusion, 13, a push plate, 14, an air bag, 15, an air duct, 16, a first rotating hole, 17, a second rotating hole, 18 and a hinged shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1 to 5, the present embodiment provides an integral casing 5 head of an oil well drilling and production device, comprising a housing 1 and a tubing hanger 2, wherein the housing 1 is used for connecting with a christmas tree, the tubing hanger 2 is arranged in the housing 1, and the integral casing 5 head further comprises a clasping assembly 3 for preventing the casing 5 from moving up and down; it is characterized in that, hug closely subassembly 3 and include:
the connecting pipe 4 is sleeved outside the sleeve 5 and moves synchronously with the sleeve 5;
The second sliding blocks 7 are arranged on the shell 1 in a sliding mode, the second sliding blocks 7 slide along the radial direction of the sleeve 5 to be far away from or close to the sleeve 5, the number of the second sliding blocks 7 is the same as that of the first sliding blocks 6, the plurality of second sliding blocks 7 are arranged around the sleeve 5 in a circumferential mode, and the first sliding blocks 6 and the second sliding blocks 7 move synchronously and in opposite directions relative to the sleeve 5;
the connecting rods 8 are multiple and are arranged in one-to-one correspondence with the first sliding blocks 6, and two ends of each connecting rod 8 are respectively connected with the first sliding blocks 6 and the connecting pipe 4; and
the middle parts of the rotating rods 9 are rotatably connected with the shell 1, two ends of each rotating rod 9 are respectively connected with the first sliding block 6 and the adjacent second sliding block 7 in a sliding mode, and the end parts of the rotating rods 9 respectively penetrate through the first sliding blocks 6 and the second sliding blocks 7; the movement of the first slider 6 pushes the second slider 7 to move in the opposite direction by means of the rotating rod 9.
In the embodiment, the casing 1 is connected with an external Christmas tree, the tubing hanger 2 is arranged in the casing 1, the casing 5 is arranged in the tubing hanger 2 in a penetrating manner, the tubing hanger 2 is used for holding the casing 5 tightly, the casing 1 is also internally provided with the holding assembly 3, the holding assembly 3 is used for assisting the tubing hanger 2 to fix the casing 5, and the situation that the casing 5 moves up and down is avoided, the holding assembly 3 comprises a connecting pipe 4, a first sliding block 6, a second sliding block 7, a connecting rod 8 and a rotating rod 9, the casing 5 is arranged in the connecting pipe 4 in a penetrating manner, the connecting pipe 4 and the casing 5 move synchronously, the first sliding block 6 and the second sliding block 7 are arranged on the casing 1 in a sliding manner, the sliding directions of the first sliding block 6 and the second sliding block 7 are the same as the radial direction of the casing 5, the first sliding block 6 and the second sliding block 7 are circumferentially distributed around the casing 5, the number of the connecting rods 8 is the same as that of the first sliding blocks 6, the connecting rods 8 and the first sliding blocks 6 are arranged in a one-to-one correspondence mode, two ends of each connecting rod 8 are hinged to the first sliding blocks 6 and the connecting pipe 4 respectively, the middle of each rotating rod 9 is rotatably connected with the inner wall of the shell 1, and the rotating axis of each rotating rod is parallel to the axis of the sleeve 5, namely the rotating axis of each rotating rod 9 is perpendicular to the moving direction space of the first sliding block 6 or the second sliding block 7, two ends of each rotating rod 9 penetrate through the first sliding block 6 and the adjacent second sliding block 7 respectively, namely two ends of each rotating rod 9 cannot be connected with the two first sliding blocks 6 or the two second sliding blocks 7 simultaneously; the end part of the rotating rod 9 and the first sliding block 6 or the second sliding block 7 have relative rotation and relative movement, and the first sliding block 6 realizes synchronous movement in the opposite direction by means of the rotating rod 9 and the corresponding second sliding block 7; the end parts of the first sliding block 6 and the second sliding block 7 can be contacted with the sleeve 5 to realize the holding of the sleeve 5, and the up-and-down movement of the sleeve 5 is avoided.
In the working process of the invention, when the sleeve 5 moves upwards, the sleeve 5 drives the first slide block 6 to be close to the sleeve 5 by the rotating rod 9, and the second slide block 7 is far away from the sleeve 5 because the first slide block 6 realizes synchronous opposite-direction movement with the second slide block 7 by the rotating rod 9, and at the moment, the integral device prevents the sleeve 5 from moving upwards by clamping the sleeve 5 by the plurality of first slide blocks 6; when the sleeve 5 moves downward, the sleeve 5 rotates to bring the first slider 6 away from the sleeve 5, and further causes the second slider 7 to approach the sleeve 5, and at this time, the integral device prevents the sleeve 5 from moving downward by clamping the sleeve 5 by the plurality of second sliders 7.
In this embodiment, can set up support piece on the inner wall of casing 1 to support piece rotates with the middle part of bull stick 9 and is connected, just so can realize the supporting role to bull stick 9, and can also guarantee to appear the condition of interfering when 9 rotatoryly of bull stick between can not and the inner wall of casing 1.
As shown in fig. 5, based on the same concept as the above embodiment, the present embodiment further provides that the first slider 6 is provided with a first through hole 10, the second slider 7 is provided with a second through hole 11, two ends of the connecting rod 8 are provided with protrusions 12, and the two protrusions 12 respectively pass through the first through hole 10 and the second through hole 11.
In this embodiment, in order to realize both relative rotation and relative movement between the link 8 and the first slider 6 or the second slider 7, the first slider 6 may be provided with a first through hole 10, the second slider 7 may be provided with a second through hole 11, and two ends of the link 8 are provided with protrusions 12, the protrusions 12 are cylindrical, and the protrusions 12 may pass through the first through hole 10 or the second through hole 11, so that when the link 8 rotates, the movement of the first slider 6 or the second slider 7 may be realized by the movement of the protrusions 12 in the first through hole 10 or the second through hole 11.
As shown in fig. 3 to 5, based on the same concept as the above embodiments, the present embodiment further provides that the push plate 13 is further included for holding the sleeve 5 tightly, the push plate 13 is respectively disposed at the pushing ends of the first slider 6 and the second slider 7, and the surface of the push plate 13 facing the sleeve 5 is an arc surface.
In this embodiment, in order to increase the contact area between the first slider 6 and the second slider 7 and the sleeve 5, a push plate 13 may be disposed at the end of the first slider 6 and the end of the second slider 7 that are in contact with the sleeve 5, and the cross-sectional area of the push plate 13 is larger than that of the first slider 6 or the second slider 7, so that when the first slider 6 or the second slider 7 is in contact with the sleeve 5 by means of the push plate 13, the friction force applied to the sleeve 5 can be increased, and the tissue sleeve 5 can move in a shorter time.
As shown in fig. 3 to 5, based on the same concept as the above embodiments, the present embodiment further proposes to further include air bags 14, the air bags 14 correspond to the push plates 13 one by one, the air bags 14 are disposed on the push plates 13, and the push plates 13 contact the sleeve 5 via the air bags 14.
In this embodiment, in order to ensure that the push plate 13 does not damage the sleeve 5 when the push plate 13 contacts the sleeve 5, the push plate 13 may be provided with an air bag 14, each push plate 13 is provided with an air bag 14, and the area of the cross section of the air bag 14 may be set larger than the area of the cross section of the push plate 13, when the first slider 6 or the second slider 7 pushes the push plate 13 to approach the sleeve 5, the inflated air bag 14 contacts the sleeve 5 first, and the material of the air bag 14 is set to be soft, so that abrasion caused by direct contact between the push plate 13 and the sleeve 5 can be avoided.
As shown in fig. 2, based on the same concept as the above embodiment, the present embodiment further proposes that the air guide tube 15 is further included, the air guide tube 15 is multiple, and the air guide tube 15 communicates with two air bags 14 correspondingly arranged on the first slider 6 and the second slider 7.
In this embodiment, in order to ensure that the first slider 6 or the second slider 7 can also clamp the sleeve 5 when being away from the sleeve 5, the air bag 14 arranged on the first slider 6 and the air bag 14 corresponding to the second slider 7 can be communicated by the air duct 15, so that the air in the two air bags 14 can flow mutually, when the sleeve 5 moves upwards, the first slider 6 is close to the sleeve 5, the pressure applied to the air bag 14 arranged on the push plate 13 of the first slider 6 is increased, and the pressure applied to the air bag 14 arranged on the push plate 13 of the second slider 7 is decreased corresponding to the second slider 7 being away from the sleeve 5, at this time, the air in the air bag 14 with increased pressure enters the air bag 14 with decreased pressure, so that the volume of the air bag 14 with increased pressure is decreased, and the volume of the air bag 14 with increased pressure is increased, even if the second slider 7 is away from the sleeve 5, the second slider 7 can also be kept in contact with the sleeve 5 by means of its associated air pocket 14, i.e. the sleeve 5 is subjected to more friction, which results in a better form of blocking the movement of the sleeve 5, and similarly the first slider 6 can also be kept in contact with the sleeve 5 by means of its associated air pocket 14 when the sleeve 5 is shifted downwards.
As shown in fig. 2 to 5, based on the same concept as the above embodiments, the present embodiment further proposes that the first slider 6, the second slider 7, the connecting rod 8, the rotating rod 9 and the air duct 15 are two, and the push plate 13 and the air bag 14 are four.
In this embodiment, in order to guarantee that sleeve 5 can also reduce the cost of whole device when receiving sufficient frictional force, can all set first slider 6, second slider 7, connecting rod 8, the quantity of bull stick 9 and air duct 15 to two, and two first sliders 6 and two crisscross settings of second slider 7, just so can guarantee that the quantity of two bull sticks 9 is just in respectively between first slider 6 and adjacent second slider 7, push pedal 13 and gasbag 14 all set to four, just so can more stabilize lower cost's assurance overall device and grasp sleeve 5.
Based on the same concept as the above-described embodiments, the present embodiment also proposes that the cross section of the air cell 14 is larger than that of the push plate 13. The surface of the air bag 14 contacting with the sleeve 5 is provided with anti-skid convex points.
In this embodiment, in order to increase the friction force between the air bag 14 and the sleeve 5, the area of the cross section of the air bag 14 may be set larger than the area of the cross section of the push plate 13; in order to further increase the friction between the air bag 14 and the sleeve 5, anti-slip bumps may be provided on the surface of the air bag 14.
The present embodiment also proposes the staggered arrangement of the first slider 6 and the second slider 7 based on the same concept as the above-described embodiment.
In this embodiment, in order to ensure that the rotating rod 9 is at the minimum length and ensure that the interference does not occur between the rotating rods 9, the first sliders 6 and the second sliders 7 can be arranged in a staggered manner, and the rotating rod 9 is arranged between the adjacent first sliders 6 and the adjacent second sliders 7, so that the size of the rotating rod 9 can be reduced, the overall production cost is reduced, and the internal interference is not easy to occur.
As shown in fig. 5, the present embodiment also proposes that the connection pipe 4 has a first rotation hole 16, the first slider 6 has a second rotation hole 17, and the link 8 has hinge shafts 18 at both ends thereof, and the link 8 is hinged to the connection pipe 4 by means of the hinge shafts 18 penetrating into the first rotation hole 16 and the second rotation hole 17, based on the same concept as the above-described embodiments.
In this embodiment, in order to ensure that the stable hinge connection between the two ends of the rotating rod 9 is realized, the first rotating hole 16 may be disposed outside the connecting pipe 4, the second rotating hole 17 is disposed on the first slider 6, the hinge shafts 18 are disposed at the two ends of the connecting rod 8, and the hinge shafts 18 respectively pass through the first rotating hole 16 and the second rotating hole 17, so that the connection is facilitated in the setting form, and the connection reliability can be ensured.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The integral casing head of the oil well drilling and production equipment comprises a shell (1) and an oil pipe hanger (2), wherein the shell (1) is used for being connected with a Christmas tree, the oil pipe hanger (2) is arranged in the shell (1), and the integral casing head further comprises a holding assembly (3) for preventing a casing (5) from moving up and down; characterized in that said hugging assembly (3) comprises:
the connecting pipe (4) is sleeved outside the sleeve (5) and moves synchronously with the sleeve (5);
first slider (6), slide and locate on casing (1), first slider (6) are followed the radial direction of sleeve pipe (5) slides in order to realize keeping away from or being close to sleeve pipe (5), first slider (6) are a plurality of and be the circumference around sleeve pipe (5) set up
The second sliding blocks (7) are arranged on the shell (1) in a sliding mode, the second sliding blocks (7) slide along the radial direction of the sleeve (5) to be far away from or close to the sleeve (5), the number of the second sliding blocks (7) is the same as that of the first sliding blocks (6), the second sliding blocks (7) are arranged around the sleeve (5) in a circumferential mode, and the first sliding blocks (6) and the second sliding blocks (7) move synchronously and in opposite directions relative to the sleeve (5);
the connecting rods (8) are arranged in a plurality of corresponding to the first sliding blocks (6) one by one, and two ends of each connecting rod (8) are respectively connected with the first sliding blocks (6) and the connecting pipe (4); and
the middle parts of the rotating rods (9) are rotatably connected with the shell (1), two ends of each rotating rod (9) are respectively in sliding connection with the first sliding block (6) and the adjacent second sliding block (7), and the end parts of the rotating rods (9) respectively penetrate through the first sliding block (6) and the second sliding block (7); the movement of the first sliding block (6) pushes the second sliding block (7) to move reversely by means of the rotating rod (9).
2. The integral casing head of oil well drilling and production equipment according to claim 1, wherein the first slider (6) is provided with a first through hole (10), the second slider (7) is provided with a second through hole (11), two ends of the connecting rod (8) are provided with protrusions (12), and the two protrusions (12) respectively penetrate through the first through hole (10) and the second through hole (11).
3. The integral casing head of oil well drilling and production equipment according to claim 2, further comprising a push plate (13) for holding the casing (5), wherein the push plate (13) is respectively arranged at the pushing ends of the first slider (6) and the second slider (7), and the surface of the push plate (13) facing the casing (5) is an arc surface.
4. The integrated casing head of oil well drilling and production equipment according to claim 3, characterized by further comprising air bags (14), wherein the air bags (14) correspond to the push plates (13) one by one, the air bags (14) are arranged on the push plates (13), and the push plates (13) are contacted with the casing (5) by means of the air bags (14).
5. The integral casing head of oil well drilling and production equipment according to claim 4, characterized by further comprising a plurality of air ducts (15), wherein the air ducts (15) are communicated with the air bags (14) correspondingly arranged on the first slider (6) and the second slider (7).
6. The integrated casing head of oil well drilling and production equipment according to claim 5, characterized in that the number of the first slider (6), the second slider (7), the connecting rod (8), the rotating rod (9) and the air duct (15) is two, and the number of the push plate (13) and the air bag (14) is four.
7. The integrated casing head of an oil well drilling and production apparatus according to claim 6, characterized in that the cross section of the bladder (14) is larger than the cross section of the push plate (13).
8. The integrated casing head of oil well drilling and production equipment according to claim 7, characterized in that the surface of the air bag (14) in contact with the casing (5) is provided with anti-slip protrusions.
9. The integrated casing head of an oil well drilling and production equipment according to any one of claims 1 to 8, characterized in that the first slider (6) and the second slider (7) are staggered.
10. The integrated casing head of oil well drilling and production equipment according to claim 9, characterized in that the connecting pipe (4) has a first rotation hole (16), the first slider (6) has a second rotation hole (17), and both ends of the connecting rod (8) are provided with hinge shafts (18), and the connecting rod (8) is hinged to the connecting pipe (4) by means of the hinge shafts (18) penetrating into the first rotation hole (16) and the second rotation hole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529133.8A CN113153204B (en) | 2021-05-14 | 2021-05-14 | Integral casing head of oil well drilling and production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110529133.8A CN113153204B (en) | 2021-05-14 | 2021-05-14 | Integral casing head of oil well drilling and production equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113153204A CN113153204A (en) | 2021-07-23 |
| CN113153204B true CN113153204B (en) | 2022-08-26 |
Family
ID=76875203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110529133.8A Active CN113153204B (en) | 2021-05-14 | 2021-05-14 | Integral casing head of oil well drilling and production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113153204B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234188B (en) * | 2022-07-29 | 2024-04-09 | 河南东方龙机械制造有限公司 | Detachable wellhead device for oil field |
| CN116122760B (en) * | 2023-03-20 | 2023-10-24 | 盐城市崇达石化机械有限公司 | Automatic locking casing head |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB303937A (en) * | 1927-10-22 | 1929-01-17 | First Expl Company Ltd | Improvements relating to oil drilling apparatus |
| US8505636B2 (en) * | 2011-07-29 | 2013-08-13 | Douglas Wade Schepp | Wellhead assembly having a nested tubing head |
| CN205876257U (en) * | 2016-06-30 | 2017-01-11 | 中国石油集团西部钻探工程有限公司 | Thermal recovery casing head |
| CN106050181B (en) * | 2016-06-30 | 2019-04-23 | 中国石油集团西部钻探工程有限公司 | Thermal extraction casing head |
| US10689935B2 (en) * | 2017-03-09 | 2020-06-23 | Cameron International Corporation | Hanger running tool and hanger |
| CN208763618U (en) * | 2018-08-17 | 2019-04-19 | 昆山艾蓓蓓阀门有限公司 | An a kind of multiple well recovers the oil or the casing head quick fixation structure of gas producing device |
| CN210948565U (en) * | 2019-11-01 | 2020-07-07 | 范英彬 | Christmas tree pressure test plugging device |
| CN111734338B (en) * | 2020-06-30 | 2022-05-27 | 濮阳市海华石油机械有限公司 | Oil pipe head and casing head device for petroleum development and using method thereof |
| CN212743938U (en) * | 2020-07-04 | 2021-03-19 | 盐城旭东机械有限公司 | High-pressure two-stage integral casing head |
| CN111852383A (en) * | 2020-07-21 | 2020-10-30 | 肖云东 | Oil field downhole tool packer |
-
2021
- 2021-05-14 CN CN202110529133.8A patent/CN113153204B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113153204A (en) | 2021-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113153204B (en) | Integral casing head of oil well drilling and production equipment | |
| US20170138131A1 (en) | Downhole expandable control line connector | |
| US2797759A (en) | Anti-extrusion device for packers | |
| US3094169A (en) | Retrievable packer | |
| CN216974789U (en) | Packer for dragging bottom seal of continuous oil pipe | |
| CN106321068A (en) | Underground oil casting pipe ground detection sensor pushing device | |
| CN202338266U (en) | Cup-type packer capable of being anchored | |
| US3062284A (en) | Gravel packing of wells and apparatus therefor | |
| CN205642812U (en) | Packer setting and pressure resistance detection device | |
| CN108179991B (en) | Bridge plug capable of being salvaged after fracturing | |
| CN209040798U (en) | A kind of petroleum drilling and mining packer | |
| CN215332758U (en) | Differential pressure type oil extraction packer | |
| CN204729048U (en) | Non-rotating set packer in the big orifice sleeve pipe of high angle hole or deep water test | |
| US2975836A (en) | Dual string cross-over tool | |
| CN216553811U (en) | Slip type petroleum pipe casing head | |
| RU171305U1 (en) | Autonomous plugging packer system | |
| CN112983333B (en) | Casing hanging type thermal recovery casing head | |
| CN212317962U (en) | Associated gas injection well is annotated vapour and is used tubular column in pit | |
| CN209339894U (en) | A kind of 36 cun of monotubular double-wellhead extracting device of oil | |
| RU164819U1 (en) | MECHANICAL PACKER FOR ESP | |
| AU2015385847B2 (en) | Retrievable pre-tension packing assembly | |
| CN206785346U (en) | A kind of inflatable packer | |
| CN207122295U (en) | A kind of multifunctional testing packer | |
| CN106593433B (en) | Mechanical type current collector is carried to horizontal well oil pipe | |
| CN104863544A (en) | Rotating oil drain device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Integrated casing head for oil well drilling and production equipment Effective date of registration: 20231213 Granted publication date: 20220826 Pledgee: Agricultural Bank of China Limited Wuqiang County Branch Pledgor: JING HONG OIL DRILLING ENGINEERING TECHNOLOGY CO.,LTD. Registration number: Y2023980071440 |